Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
Locations
- Southwark
- The City, City (EC4)
- Hinxton
- Shoreditch
- The City, City (EC2)
- Arundel Heights
- Bengo
- Causeway
- Covent Garden
- Datchet Common
- City of London
- Central London
- West End
- Cambridge
- Milton Keynes
- Reading
- Hoddesdon
- South East London
- South West London
- Stevenage
- London
- Hertfordshire
- Berkshire
- Buckinghamshire
- Cambridgeshire
- Surrey
- Oxfordshire
- Bedfordshire
- Essex
- West Sussex
- South East
- East Anglia
75 Contract API jobs in Paddington (WA1) + 20 miles
)
C# Developer .Net SQL API
C# Developer .Net SQL API
Client Server
The City, City of London (EC4), EC4R
£75000 - £90000 per annum + benefits
C# Developer / Software Engineer (C# .Net SQL API) London onsite to £90k Are you an ambitious and motivated C# Developer looking for an opportunity to progress your career, working on complex and interesting systems? You could joining a global sports trading firm, earning substantial bonuses. * Salary to £90k * Bonus paid every six months based on personal performance (10-25%) * Professional development * Pension * Health Insurance * Gym membership * Social events, free fruit, snacks, coffee etc. As a C# Developer within the trading engine team you'll collaborate to design and develop real-time trading systems, you'll often be collaborating with the strategy team on Greenfield projects which you'll take ownership of and will see the business impact of.
C# Developer / Software Engineer (C# .Net SQL API) London onsite to £90k Are you an ambitious and motivated C# Developer looking for an opportunity to progress your career, working on complex and interesting systems? You could joining a global sports trading firm, earning substantial bonuses. * Salary to £90k * Bonus paid every six months based on personal performance (10-25%) * Professional development * Pension * Health Insurance * Gym membership * Social events, free fruit, snacks, coffee etc. As a C# Developer within the trading engine team you'll collaborate to design and develop real-time trading systems, you'll often be collaborating with the strategy team on Greenfield projects which you'll take ownership of and will see the business impact of.
PREMIUM
Full Stack Engineer TypeScript API React
Full Stack Engineer TypeScript API React
Client Server
Shoreditch, East London (E1), EC2A
£50000 - £60000 per annum + benefits
Full Stack Engineer / Developer (TypeScript API React) London / WFH to £60k Are you a bright, ambitious technologist who enjoys working with a range of programming languages across the full tech stack? You could progress your career at a scaling tech company that has developed a digital distribution platform transforming electronic trading in the institutional FX options market via a central marketplace where institutions can place, discover and match option interests electronically, improving liquidity and efficiency for all participants as the platform scales.
Full Stack Engineer / Developer (TypeScript API React) London / WFH to £60k Are you a bright, ambitious technologist who enjoys working with a range of programming languages across the full tech stack? You could progress your career at a scaling tech company that has developed a digital distribution platform transforming electronic trading in the institutional FX options market via a central marketplace where institutions can place, discover and match option interests electronically, improving liquidity and efficiency for all participants as the platform scales.
PREMIUM
)
Role Overview 6 months London - Hybrid Inside IR35 - Umbrella Only The Qualtrics Developer will be responsible for designing, configuring, and deploying advanced survey solutions using the Qualtrics platform as part of Toyota Financial Services' Customer Experience Discovery initiative. This role is critical in enabling data driven insights through seamless survey integration, analytics, and reporting. Key Responsibilities * Build branded Qualtrics survey themes aligned with Toyota FS identity. * Develop dynamic, multi-channel surveys (email, portal intercepts, exit intent). * Implement advanced branching logic and variation frameworks for A/B testing. * Configure API connections to CRM systems and Power BI for real-time dashboards. * Ensure secure data handling and compliance with GDPR and Toyota FS standards.
Role Overview 6 months London - Hybrid Inside IR35 - Umbrella Only The Qualtrics Developer will be responsible for designing, configuring, and deploying advanced survey solutions using the Qualtrics platform as part of Toyota Financial Services' Customer Experience Discovery initiative. This role is critical in enabling data driven insights through seamless survey integration, analytics, and reporting. Key Responsibilities * Build branded Qualtrics survey themes aligned with Toyota FS identity. * Develop dynamic, multi-channel surveys (email, portal intercepts, exit intent). * Implement advanced branching logic and variation frameworks for A/B testing. * Configure API connections to CRM systems and Power BI for real-time dashboards. * Ensure secure data handling and compliance with GDPR and Toyota FS standards.
NEWFEATURED
)
Description Job Description a. Manage complex FIX implementations and upgrades. c. Diagnose software and connection issues and recommend the appropriate solution. d. Analyze problems, answer questions, and provide training related to the software. e. Identify and test workarounds for bugs or deficiencies in the software and/or associated FIX infrastructure. f. Research issues dealing with third party software. g. Follow a standard set of procedure and methods when responding to customer requests or inquiries. h. Conduct research on questions and issues using available information resources and other FIX Analysts. i. Keep a detailed log of all customer interactions and prepares resolution reports for issues reported by the customer. j. Maintain Best Practices for FIX Onboarding and Integrations. Requirements
Description Job Description a. Manage complex FIX implementations and upgrades. c. Diagnose software and connection issues and recommend the appropriate solution. d. Analyze problems, answer questions, and provide training related to the software. e. Identify and test workarounds for bugs or deficiencies in the software and/or associated FIX infrastructure. f. Research issues dealing with third party software. g. Follow a standard set of procedure and methods when responding to customer requests or inquiries. h. Conduct research on questions and issues using available information resources and other FIX Analysts. i. Keep a detailed log of all customer interactions and prepares resolution reports for issues reported by the customer. j. Maintain Best Practices for FIX Onboarding and Integrations. Requirements
NEW
)
Description Job Description a. Manage complex FIX implementations and upgrades. c. Diagnose software and connection issues and recommend the appropriate solution. d. Analyze problems, answer questions, and provide training related to the software. e. Identify and test workarounds for bugs or deficiencies in the software and/or associated FIX infrastructure. f. Research issues dealing with third party software. g. Follow a standard set of procedure and methods when responding to customer requests or inquiries. h. Conduct research on questions and issues using available information resources and other FIX Analysts. i. Keep a detailed log of all customer interactions and prepares resolution reports for issues reported by the customer. j. Maintain Best Practices for FIX Onboarding and Integrations. Requirements
Description Job Description a. Manage complex FIX implementations and upgrades. c. Diagnose software and connection issues and recommend the appropriate solution. d. Analyze problems, answer questions, and provide training related to the software. e. Identify and test workarounds for bugs or deficiencies in the software and/or associated FIX infrastructure. f. Research issues dealing with third party software. g. Follow a standard set of procedure and methods when responding to customer requests or inquiries. h. Conduct research on questions and issues using available information resources and other FIX Analysts. i. Keep a detailed log of all customer interactions and prepares resolution reports for issues reported by the customer. j. Maintain Best Practices for FIX Onboarding and Integrations. Requirements
NEWPREMIUM
)
Senior Azure Developer (Azure, SDK, Node)
Senior Azure Developer (Azure, SDK, Node)
MS Talent Ltd
The City, City of London (EC2), EC2M
£400 - £450 per day, Benefits Outside IR35
Senior / Lead Azure Developer (Azure Developer, Microsoft Azure, Node.js, Microsoft SDK, Graph API) Bring a new custom application to the market! Location no issue - work from home! 6 month contract, £400 - £450 per day OUTSIDE IR35. Remote role in the UK. We are looking for a Senior Azure Developer / Lead Azure Developerwho specialises in building custom M365 applications that sit on Microsoft Azure. This role is for an Azure Developerwith deep experience using Microsoft SDKs, Graph API and enterprise integrations, not just front-end frameworks. You will be the hands-on technical ownerof a bespoke Microsoft Azure application, built using Node.jsand integrated with Microsoft enterprise services. * Proven experience as a Senior Azure Developerbuilding custom Microsoft Azure applications * Strong Node.js developmentexperience in an Azure Developerenvironment
Senior / Lead Azure Developer (Azure Developer, Microsoft Azure, Node.js, Microsoft SDK, Graph API) Bring a new custom application to the market! Location no issue - work from home! 6 month contract, £400 - £450 per day OUTSIDE IR35. Remote role in the UK. We are looking for a Senior Azure Developer / Lead Azure Developerwho specialises in building custom M365 applications that sit on Microsoft Azure. This role is for an Azure Developerwith deep experience using Microsoft SDKs, Graph API and enterprise integrations, not just front-end frameworks. You will be the hands-on technical ownerof a bespoke Microsoft Azure application, built using Node.jsand integrated with Microsoft enterprise services. * Proven experience as a Senior Azure Developerbuilding custom Microsoft Azure applications * Strong Node.js developmentexperience in an Azure Developerenvironment
)
Job title- Payment Architect Location: Milton Keynes (2-3 days) Duration: 6 Months Job Description Santander UK is expanding its Payments Solution Architecture team. We are looking for senior level architects with deep experience in payments execution processing. These hires will support the modernisation of our payments estate and the migration of legacy platforms to the Payments Hub (PagoNxt). The individuals must have strong payments scheme knowledge, deep understanding of ISO 20022, and proven experience designing solutions for core payment processing. Payments domain expertise * Strong experience across payments execution processes such as orchestration, order management, clearing, settlement, reconciliations, exception handling and returns. * Practical scheme knowledge in at least several of the following: Bacs, Faster Payments, CHAPS, SWIFT, SEPA, cheques.
Job title- Payment Architect Location: Milton Keynes (2-3 days) Duration: 6 Months Job Description Santander UK is expanding its Payments Solution Architecture team. We are looking for senior level architects with deep experience in payments execution processing. These hires will support the modernisation of our payments estate and the migration of legacy platforms to the Payments Hub (PagoNxt). The individuals must have strong payments scheme knowledge, deep understanding of ISO 20022, and proven experience designing solutions for core payment processing. Payments domain expertise * Strong experience across payments execution processes such as orchestration, order management, clearing, settlement, reconciliations, exception handling and returns. * Practical scheme knowledge in at least several of the following: Bacs, Faster Payments, CHAPS, SWIFT, SEPA, cheques.
)
The salary on offer for this role is £65,000 - £80,000 per annum Enfield, London - On-site We're seeking a Technical Development Lead to join our client's team to act as the subject matter expert and hands-on leader for their entire technology ecosystem. This pivotal role in a dynamic business environment requires someone capable of managing architecture, complex implementations, team leadership, and compliance oversight simultaneously. You will be responsible for ensuring the reliability, security, and scalability of all core systems across e-commerce, retail, and hospitality operations, translating strategic objectives into high-quality technical solutions with immediate impact. Responsibilities & Skills * Lead hands-on development and architecture, coding complex components and managing integrations across all platforms.
The salary on offer for this role is £65,000 - £80,000 per annum Enfield, London - On-site We're seeking a Technical Development Lead to join our client's team to act as the subject matter expert and hands-on leader for their entire technology ecosystem. This pivotal role in a dynamic business environment requires someone capable of managing architecture, complex implementations, team leadership, and compliance oversight simultaneously. You will be responsible for ensuring the reliability, security, and scalability of all core systems across e-commerce, retail, and hospitality operations, translating strategic objectives into high-quality technical solutions with immediate impact. Responsibilities & Skills * Lead hands-on development and architecture, coding complex components and managing integrations across all platforms.
)
The salary on offer for this role is £65,000 - £80,000 per annum Enfield, London - On-site We're seeking a Technical Development Lead to join our client's team to act as the subject matter expert and hands-on leader for their entire technology ecosystem. This pivotal role in a dynamic business environment requires someone capable of managing architecture, complex implementations, team leadership, and compliance oversight simultaneously. You will be responsible for ensuring the reliability, security, and scalability of all core systems across e-commerce, retail, and hospitality operations, translating strategic objectives into high-quality technical solutions with immediate impact. Responsibilities & Skills * Lead hands-on development and architecture, coding complex components and managing integrations across all platforms.
The salary on offer for this role is £65,000 - £80,000 per annum Enfield, London - On-site We're seeking a Technical Development Lead to join our client's team to act as the subject matter expert and hands-on leader for their entire technology ecosystem. This pivotal role in a dynamic business environment requires someone capable of managing architecture, complex implementations, team leadership, and compliance oversight simultaneously. You will be responsible for ensuring the reliability, security, and scalability of all core systems across e-commerce, retail, and hospitality operations, translating strategic objectives into high-quality technical solutions with immediate impact. Responsibilities & Skills * Lead hands-on development and architecture, coding complex components and managing integrations across all platforms.
Were looking for a highly skilled Quantitative Developer to join our dynamic team. This is an opportunity to work on cutting-edge financial products and deliver robust, production-quality code that powers critical trading and risk systems. Youll collaborate closely with quants and traders to design and implement solutions that make a real impact. What Youll Do * Develop high-performance applications in C# or C++, with code deployed in production environments. * Design and implement system architecture and APIs for complex financial workflows. * Apply strong quantitative and mathematical skills to model and solve challenging problems. * Work with a broad range of financial products, including rates, FX, inflation, and credit. What Were Looking For * Proven experience in high-level programming (C# or C++). * Strong background in system/API design.
Were looking for a highly skilled Quantitative Developer to join our dynamic team. This is an opportunity to work on cutting-edge financial products and deliver robust, production-quality code that powers critical trading and risk systems. Youll collaborate closely with quants and traders to design and implement solutions that make a real impact. What Youll Do * Develop high-performance applications in C# or C++, with code deployed in production environments. * Design and implement system architecture and APIs for complex financial workflows. * Apply strong quantitative and mathematical skills to model and solve challenging problems. * Work with a broad range of financial products, including rates, FX, inflation, and credit. What Were Looking For * Proven experience in high-level programming (C# or C++). * Strong background in system/API design.
PREMIUM
)
Software Development Engineer in Test (SDET)
Software Development Engineer in Test (SDET)
ARC IT Recruitment Ltd
South West London (SW1)
£55,000 per annum
Were looking for an experienced SDET to join a high-performing engineering team working on a high traffic, large-scale e-commerce platform. Youll play a key role in building and evolving a scalable, fully automated testing framework, helping ensure fast, safe and high-quality software delivery. Working closely with engineers, product and stakeholders, youll drive quality across web applications and APIs while tackling interesting technical challenges. * Designing and maintaining test automation frameworks (JavaScript/TypeScript) * Automated and manual testing of web applications and APIs * Test planning, estimation, execution and defect management * Integrating automated tests into CI/CD pipelines * Collaborating across teams to improve quality and close requirement gaps * Proven experience in SDET or test automation roles
Were looking for an experienced SDET to join a high-performing engineering team working on a high traffic, large-scale e-commerce platform. Youll play a key role in building and evolving a scalable, fully automated testing framework, helping ensure fast, safe and high-quality software delivery. Working closely with engineers, product and stakeholders, youll drive quality across web applications and APIs while tackling interesting technical challenges. * Designing and maintaining test automation frameworks (JavaScript/TypeScript) * Automated and manual testing of web applications and APIs * Test planning, estimation, execution and defect management * Integrating automated tests into CI/CD pipelines * Collaborating across teams to improve quality and close requirement gaps * Proven experience in SDET or test automation roles
NEW
)
Senior Automation Test Engineer - ETRM / Trading Platforms
Senior Automation Test Engineer - ETRM / Trading Platforms
Data Careers
Southwark, South East London (SE1), SE1
£70000 - £90000 per annum
Permanent Location: London / Home (Hybrid) Salary: £70,000 - £90,000 (+ benefits) Skills: ETRM platform experience, (Openlink Endur, Findur etc.), Automation testing Python, Java etc. We are looking to recruit an Automation Tester, with trading platform experience, for a leading software company that delivers advanced solutions for trading and risk management across global financial and energy markets. This is a hybrid role and you will be required to work on client site in London 2 / 3 days a week. What you'll bring * Programming & Scripting: Python, Java, JavaScript, C++, Scriban * Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS, Node.js * Databases: SQL Server, MySQL, PostgreSQL, MongoDB * Tools & Frameworks: Git, Docker, Jenkins, Kubernetes, Agile (Scrum & Kanban), JIRA, Pytest, Powershell * Operating Systems: Linux, Windows
Permanent Location: London / Home (Hybrid) Salary: £70,000 - £90,000 (+ benefits) Skills: ETRM platform experience, (Openlink Endur, Findur etc.), Automation testing Python, Java etc. We are looking to recruit an Automation Tester, with trading platform experience, for a leading software company that delivers advanced solutions for trading and risk management across global financial and energy markets. This is a hybrid role and you will be required to work on client site in London 2 / 3 days a week. What you'll bring * Programming & Scripting: Python, Java, JavaScript, C++, Scriban * Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS, Node.js * Databases: SQL Server, MySQL, PostgreSQL, MongoDB * Tools & Frameworks: Git, Docker, Jenkins, Kubernetes, Agile (Scrum & Kanban), JIRA, Pytest, Powershell * Operating Systems: Linux, Windows
NEW
)
Description ADP is hiring a Business Resiliency Planner Are you looking to build a career in Business Resiliency in a global company that offers career advancement opportunities throughout your career journey? Are you looking to join a global company with a culture of inclusion, collaboration and belonging? Well, this may be the right fit for you. Ready to make your mark? In this role, you will be responsible for protecting the organizations business assets through a Global Business Resiliency Program that establishes a single framework for how ADP manages, and controls risks associated with the recovery from business disruptions and disaster events. You will be involved in providing insight, guidance, and direction on the continued development and effectiveness of the global Business Resiliency Program.
Description ADP is hiring a Business Resiliency Planner Are you looking to build a career in Business Resiliency in a global company that offers career advancement opportunities throughout your career journey? Are you looking to join a global company with a culture of inclusion, collaboration and belonging? Well, this may be the right fit for you. Ready to make your mark? In this role, you will be responsible for protecting the organizations business assets through a Global Business Resiliency Program that establishes a single framework for how ADP manages, and controls risks associated with the recovery from business disruptions and disaster events. You will be involved in providing insight, guidance, and direction on the continued development and effectiveness of the global Business Resiliency Program.
)
We are looking for an experienced Appian Developer to support integration and automation initiatives within a leading financial services organisation. This role focuses on connecting systems, automating complex business processes, and improving operational efficiency. * Design, develop, and maintain Appian applications to support fraud and spam prevention workflows. * Build and manage system integrations (APIs, web services, and third-party platforms) * Automate business processes to improve accuracy, speed, and resilience. * Working with offshore teams to complete end-to-end delivery, from requirements gathering to deployment * Ensure solutions meet security, compliance, and performance standards expected in financial services. * Must have proven experience as an Appian Developer. * Must have a strong background in system integration, process automation and APIs.
We are looking for an experienced Appian Developer to support integration and automation initiatives within a leading financial services organisation. This role focuses on connecting systems, automating complex business processes, and improving operational efficiency. * Design, develop, and maintain Appian applications to support fraud and spam prevention workflows. * Build and manage system integrations (APIs, web services, and third-party platforms) * Automate business processes to improve accuracy, speed, and resilience. * Working with offshore teams to complete end-to-end delivery, from requirements gathering to deployment * Ensure solutions meet security, compliance, and performance standards expected in financial services. * Must have proven experience as an Appian Developer. * Must have a strong background in system integration, process automation and APIs.
)
Im working with a global, purpose-driven technology group thats hiring a Solutions Engineer to support large-scale digital transformation across a diverse portfolio of innovative businesses. This Solutions Engineer role sits within a central Digital Solutions team and offers the chance to work with cloud, AI and emerging technologies to build scalable, real-world solutions used across multiple industries. As a Solutions Engineer, youll be hands-on designing and prototyping modern platforms, influencing engineering best practice, and creating reusable technical assets. Its a great opportunity for engineers who want exposure to cloud services, Generative AI, VR/AR and edge technologies in a highly collaborative environment. * Designing and developing cloud-native solutions and proof-of-concepts * Working with modern cloud services, APIs and microservices
Im working with a global, purpose-driven technology group thats hiring a Solutions Engineer to support large-scale digital transformation across a diverse portfolio of innovative businesses. This Solutions Engineer role sits within a central Digital Solutions team and offers the chance to work with cloud, AI and emerging technologies to build scalable, real-world solutions used across multiple industries. As a Solutions Engineer, youll be hands-on designing and prototyping modern platforms, influencing engineering best practice, and creating reusable technical assets. Its a great opportunity for engineers who want exposure to cloud services, Generative AI, VR/AR and edge technologies in a highly collaborative environment. * Designing and developing cloud-native solutions and proof-of-concepts * Working with modern cloud services, APIs and microservices
PREMIUM
)
Description and requirements Skanska, one of the worlds leading project development and construction groups, is an inclusive and responsible business that is helping to build a better society. We are looking for a Head of Data & Analytics to join our Technology & Sustainability team in Leavesden (Watford). The Head of Data Analytics will be responsible for setting the strategic direction, governance, and delivery of data capabilities across the organisation. * Be accountable for defining and executing the organisations data and analytics strategy, aligning it with business priorities and regulatory requirements. * Lead the Data Analytics and Engineering function, ensuring seamless collaboration across Analysts, Engineers, Architects, and Governance specialists, and preparing for the future integration of Data Science.
Description and requirements Skanska, one of the worlds leading project development and construction groups, is an inclusive and responsible business that is helping to build a better society. We are looking for a Head of Data & Analytics to join our Technology & Sustainability team in Leavesden (Watford). The Head of Data Analytics will be responsible for setting the strategic direction, governance, and delivery of data capabilities across the organisation. * Be accountable for defining and executing the organisations data and analytics strategy, aligning it with business priorities and regulatory requirements. * Lead the Data Analytics and Engineering function, ensuring seamless collaboration across Analysts, Engineers, Architects, and Governance specialists, and preparing for the future integration of Data Science.
)
Lead Product Designer
Lead Product Designer
Halian Technology Limited
Central London (W1)
From £100,000 to £115,000 per annum Plus bonus and benefits
Were looking for a passionate and pragmaticProductDesign Leadto build and shape the design function of my fintech clients product within the payments space. This is a rare opportunity to define my clients design culture from the ground upspanning UI/UX, API documentation, and visual identity across the organisation. Customer-centric simplicitysits at the heart of their product philosophy. As their first in-house design leadership hire, youll have a pivotal role in making design a strategic force across the business. Youll lead by examplesetting direction, creating scalable design systems, leveraging AI tools, and contributing directly with hands-on work across product and marketing design. Key Responsibilities * Report regularly to the Product Director and keep leadership informed.
Were looking for a passionate and pragmaticProductDesign Leadto build and shape the design function of my fintech clients product within the payments space. This is a rare opportunity to define my clients design culture from the ground upspanning UI/UX, API documentation, and visual identity across the organisation. Customer-centric simplicitysits at the heart of their product philosophy. As their first in-house design leadership hire, youll have a pivotal role in making design a strategic force across the business. Youll lead by examplesetting direction, creating scalable design systems, leveraging AI tools, and contributing directly with hands-on work across product and marketing design. Key Responsibilities * Report regularly to the Product Director and keep leadership informed.
)
Business Analyst
Business Analyst
REC SOLUTIONS LIMITED
The City, City of London (EC4), EC4N
Competitive base salary plus bonus and benefits
***Hybrid, 3 days a week in the office 2 days remote*** An excellent opportunity has arisen for a Business Analyst to join a forward thinking, innovative exchange based in the City, London working with some cutting edge technologies. Benefits (not exhaustive list) - Business Analyst (FinTech, Financial Services, Trading, Equities, Equity) * Competitive salary * 25 days annual leave - not including bank holidays * Can opt to join Private Medical insurance scheme * Hybrid working * Flexible working hours * Company pension * Group Policies Life Assurance, Income Protection and Critical Illness * Discretionary bonus * Can opt to join Electric Car Scheme * Enhanced Maternity and Paternity Policy * Can opt to join Workplace Nursery Scheme * Length of service holiday entitlement
***Hybrid, 3 days a week in the office 2 days remote*** An excellent opportunity has arisen for a Business Analyst to join a forward thinking, innovative exchange based in the City, London working with some cutting edge technologies. Benefits (not exhaustive list) - Business Analyst (FinTech, Financial Services, Trading, Equities, Equity) * Competitive salary * 25 days annual leave - not including bank holidays * Can opt to join Private Medical insurance scheme * Hybrid working * Flexible working hours * Company pension * Group Policies Life Assurance, Income Protection and Critical Illness * Discretionary bonus * Can opt to join Electric Car Scheme * Enhanced Maternity and Paternity Policy * Can opt to join Workplace Nursery Scheme * Length of service holiday entitlement
)
Senior Java Software Engineer (Urgent)
Senior Java Software Engineer (Urgent)
Morson Edge
Tower Hill, City of London (EC3), E1W 1WY
£500 - 600 per day
We are seeking an experienced Senior Java Software Engineer to join the IT team at a leading bank, supporting the delivery, maintenance, and enhancement of core systems across various business areas, including operations, compliance, transactions, and client management. This is a 6-month contract role offering an excellent day rate, ideally suited to candidates with experience in regulated environments, financial services, or government/public sector organisations. In this role, you will be an integral part of the software development lifecycle, working closely with Senior Java Developers, UI/UX teams, and Agile Transformation to architect, build, and deliver greenfield, brownfield, and integration applications.
We are seeking an experienced Senior Java Software Engineer to join the IT team at a leading bank, supporting the delivery, maintenance, and enhancement of core systems across various business areas, including operations, compliance, transactions, and client management. This is a 6-month contract role offering an excellent day rate, ideally suited to candidates with experience in regulated environments, financial services, or government/public sector organisations. In this role, you will be an integral part of the software development lifecycle, working closely with Senior Java Developers, UI/UX teams, and Agile Transformation to architect, build, and deliver greenfield, brownfield, and integration applications.
)
Up to £475 Per day inside IR35 Long term contract Remote UK/EU We’re looking for a BE Engineer to design and build high-quality backend systems and data pipelines that power the analytics platform. You’ll collaborate with engineers and the Product team across the full software lifecycle, leading on scalable services that ingest, transform and deliver data to our frontend applications and customers. You’ll bring strong Python skills, experience with microservices and data ingestion/ETL pipelines, and an eye for clean, maintainable code. Familiarity with AI-assisted dev tools (GitHub Copilot, Cursor, Windsurf, Devin) is a plus — we encourage using them to boost developer velocity and quality. What you’ll do * Design and implement robust, scalable backend services in Python * Own and improve data ingestion & processing pipelines
Up to £475 Per day inside IR35 Long term contract Remote UK/EU We’re looking for a BE Engineer to design and build high-quality backend systems and data pipelines that power the analytics platform. You’ll collaborate with engineers and the Product team across the full software lifecycle, leading on scalable services that ingest, transform and deliver data to our frontend applications and customers. You’ll bring strong Python skills, experience with microservices and data ingestion/ETL pipelines, and an eye for clean, maintainable code. Familiarity with AI-assisted dev tools (GitHub Copilot, Cursor, Windsurf, Devin) is a plus — we encourage using them to boost developer velocity and quality. What you’ll do * Design and implement robust, scalable backend services in Python * Own and improve data ingestion & processing pipelines
)
London, Bristol or Edinburgh We are working with a leading energy technology company that has built a major intelligence platform used by global energy and automotive brands. Their work helps accelerate the shift to reliable and affordable clean energy. The business operates internationally and promotes a flexible, hybrid approach to work. The Role The company is hiring a Machine Learning Engineer at Tech Lead level to join a central ML team supporting Product and Engineering groups. You will design and productionise ML, optimisation and GenAI solutions that sit at the core of their platform. Projects include forecasting, recommendation systems and classification tools. Key Responsibilities * Build ML and GenAI solutions in Python, using Databricks, Kafka and AWS * Deploy and maintain algorithms in a microservices environment
London, Bristol or Edinburgh We are working with a leading energy technology company that has built a major intelligence platform used by global energy and automotive brands. Their work helps accelerate the shift to reliable and affordable clean energy. The business operates internationally and promotes a flexible, hybrid approach to work. The Role The company is hiring a Machine Learning Engineer at Tech Lead level to join a central ML team supporting Product and Engineering groups. You will design and productionise ML, optimisation and GenAI solutions that sit at the core of their platform. Projects include forecasting, recommendation systems and classification tools. Key Responsibilities * Build ML and GenAI solutions in Python, using Databricks, Kafka and AWS * Deploy and maintain algorithms in a microservices environment
Software Engineering Lead Java AI - FinTech
Software Engineering Lead Java AI - FinTech
Client Server
Shoreditch, East London (E1), EC2A
£120000 - £140000 per annum + bonus + benefits
Software Engineering Lead (Java AI) London / WFH to £140k Are you a technical leader with a strong knowledge of AI and its practical uses within software engineering? You could be progressing your career in a senior, hands-on Engineering Manager role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top employers. As a Software Engineering Lead you'll head up a team of nine Software Engineers whilst remaining hands-on with coding. Your primary focus will be on using Claude code (and other AI tools and frameworks) throughout the development lifecycle from initial requirements shaping through to deployment to improve speed and efficiency of software development and release.
Software Engineering Lead (Java AI) London / WFH to £140k Are you a technical leader with a strong knowledge of AI and its practical uses within software engineering? You could be progressing your career in a senior, hands-on Engineering Manager role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top employers. As a Software Engineering Lead you'll head up a team of nine Software Engineers whilst remaining hands-on with coding. Your primary focus will be on using Claude code (and other AI tools and frameworks) throughout the development lifecycle from initial requirements shaping through to deployment to improve speed and efficiency of software development and release.
PREMIUM
)
Software Engineer (Hardware Integration with .NET)
Software Engineer (Hardware Integration with .NET)
IO Associates
City of London (EC1)
£600 - £800 per day + Outside IR35 and Hybrid
Role: Staff Software Engineer Sector: Life Sciences Location: London Days Onsite: 3 per week Day Rate: £800 Outside IR35 Duration: 4 Months then to extend or go Permanent iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements * Strong .NET / C# background * Significant experience integrating and communicating with hardware devices * Ability to handle Windows devices, drivers, and communication layers * 8+ years of experience at a staff-level, capable of working autonomously * Not a web-focused developer; needs to be fully hardware-integration oriented Beneficial Experience * gRPC, REST APIs, HTTP * Integrating devices in Life Sciences
Role: Staff Software Engineer Sector: Life Sciences Location: London Days Onsite: 3 per week Day Rate: £800 Outside IR35 Duration: 4 Months then to extend or go Permanent iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements * Strong .NET / C# background * Significant experience integrating and communicating with hardware devices * Ability to handle Windows devices, drivers, and communication layers * 8+ years of experience at a staff-level, capable of working autonomously * Not a web-focused developer; needs to be fully hardware-integration oriented Beneficial Experience * gRPC, REST APIs, HTTP * Integrating devices in Life Sciences
FEATURED
React Developer TypeScript - Hedge Fund
React Developer TypeScript - Hedge Fund
Client Server
Victoria, South West London (SW1), SW1H
£80000 - £95000 per annum + bonus + benefits
React Developer / Front End Engineer (React v19 TypeScript) London / WFH to £95k Do you have expertise with React? You could be progressing your career at a Hedge Fund with complex work and substantial bonus earning potential. As a React Developer you'll join a globally distributed team to develop engaging and simple user interfaces across all internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. You'll join colleagues in the impressive Central London office with flexibility to work from home twice a week. * You have strong Front End development skills with React (they're using v19) and TypeScript * You are experienced with other web technologies such as HTML, CSS, Web APIs
React Developer / Front End Engineer (React v19 TypeScript) London / WFH to £95k Do you have expertise with React? You could be progressing your career at a Hedge Fund with complex work and substantial bonus earning potential. As a React Developer you'll join a globally distributed team to develop engaging and simple user interfaces across all internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. You'll join colleagues in the impressive Central London office with flexibility to work from home twice a week. * You have strong Front End development skills with React (they're using v19) and TypeScript * You are experienced with other web technologies such as HTML, CSS, Web APIs
PREMIUM
)
Front Office Developer - Technical Team Lead
Front Office Developer - Technical Team Lead
CMC Markets UK Plc
The City, City of London (EC3), EC3A 7BX
Competitive Salary + Bonus, Pension, Private Health, Life Assurance
We are now looking for a talented team-oriented developer who thrives in a collaborative environment, enjoys solving complex technical challenges, and wants to make an impact in a fast-paced, global setting. Join our Pricing & Risk team, working on our front-office pricing and trading platform. This is a hands-on role focused on building and maintaining distributed backend systems that support our market-making business across multiple asset classes including Equities, FX, Crypto, and Commodities. * Design, develop, and maintain backend infrastructure, microservices, APIs, and business logic for our pricing and trading systems. * Partner with front-end developers, quants, and front-office users to deliver efficient, scalable, and high-performance solutions.
We are now looking for a talented team-oriented developer who thrives in a collaborative environment, enjoys solving complex technical challenges, and wants to make an impact in a fast-paced, global setting. Join our Pricing & Risk team, working on our front-office pricing and trading platform. This is a hands-on role focused on building and maintaining distributed backend systems that support our market-making business across multiple asset classes including Equities, FX, Crypto, and Commodities. * Design, develop, and maintain backend infrastructure, microservices, APIs, and business logic for our pricing and trading systems. * Partner with front-end developers, quants, and front-office users to deliver efficient, scalable, and high-performance solutions.
FEATURED
Related Jobs
Locations
- Southwark
- The City, City (EC4)
- Hinxton
- Shoreditch
- The City, City (EC2)
- Arundel Heights
- Bengo
- Causeway
- Covent Garden
- Datchet Common
- City of London
- Central London
- West End
- Cambridge
- Milton Keynes
- Reading
- Hoddesdon
- South East London
- South West London
- Stevenage
- London
- Hertfordshire
- Berkshire
- Buckinghamshire
- Cambridgeshire
- Surrey
- Oxfordshire
- Bedfordshire
- Essex
- West Sussex
- South East
- East Anglia