Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations

167 Contract API jobs in London + 20 miles

A leading retailer is looking for an HR Data Analyst (PowerBI, Workday, HR, DAX) to join a major transformation project. As the HR Data Analyst (PowerBI, Workday, HR, DAX) you have excellent skills/experience with PowerBI, Workday and HR, being responsible for designing, building, testing and maintaining PowerBI Dashboards, ensuring critical processes meet business requirements. You will have solid knowledge of Alteryx and Workday APIs to support with mapping impacts and potential rebuilds, whilst creating and maintaining technical documentation, providing expertise on best practices and support troubleshooting and enhancement initiatives. Skills and Experience - PowerBI - Workday and HR experience - API experience with Alteryx and Workday - Designing, Building, Testing and Maintaining PowerBI Dashboards for Talent Acquisition, Talent Review and People Structures
A leading retailer is looking for an HR Data Analyst (PowerBI, Workday, HR, DAX) to join a major transformation project. As the HR Data Analyst (PowerBI, Workday, HR, DAX) you have excellent skills/experience with PowerBI, Workday and HR, being responsible for designing, building, testing and maintaining PowerBI Dashboards, ensuring critical processes meet business requirements. You will have solid knowledge of Alteryx and Workday APIs to support with mapping impacts and potential rebuilds, whilst creating and maintaining technical documentation, providing expertise on best practices and support troubleshooting and enhancement initiatives. Skills and Experience - PowerBI - Workday and HR experience - API experience with Alteryx and Workday - Designing, Building, Testing and Maintaining PowerBI Dashboards for Talent Acquisition, Talent Review and People Structures
more
NEW
A leading retailer is looking for a PowerBI Data Analyst (Workday, HR, DAX) to join a major transformation project. As the PowerBI Data Analyst (Workday, HR, DAX) you have excellent skills/experience with PowerBI, Workday and HR, being responsible for designing, building, testing and maintaining PowerBI Dashboards, ensuring critical processes meet business requirements. You will have solid knowledge of Alteryx and Workday APIs to support with mapping impacts and potential rebuilds, whilst creating and maintaining technical documentation, providing expertise on best practices and support troubleshooting and enhancement initiatives. Skills and Experience - PowerBI - Workday and HR experience - API experience with Alteryx and Workday - Designing, Building, Testing and Maintaining PowerBI Dashboards for Talent Acquisition, Talent Review and People Structures
A leading retailer is looking for a PowerBI Data Analyst (Workday, HR, DAX) to join a major transformation project. As the PowerBI Data Analyst (Workday, HR, DAX) you have excellent skills/experience with PowerBI, Workday and HR, being responsible for designing, building, testing and maintaining PowerBI Dashboards, ensuring critical processes meet business requirements. You will have solid knowledge of Alteryx and Workday APIs to support with mapping impacts and potential rebuilds, whilst creating and maintaining technical documentation, providing expertise on best practices and support troubleshooting and enhancement initiatives. Skills and Experience - PowerBI - Workday and HR experience - API experience with Alteryx and Workday - Designing, Building, Testing and Maintaining PowerBI Dashboards for Talent Acquisition, Talent Review and People Structures
more
NEW
Start: ASAP Duration: 6 months Pay: up to £510 per day (inside IR35) Location: Guildford (2-days per week) We're seeking a Senior Infrastructure Solution Architect for a high-impact role within a fast-moving, regulated organisation. You'll be responsible for designing repeatable infrastructure patterns and secure, resilient solutions that align with business and IT strategy. This is a senior-level role requiring strong technical expertise and the ability to engage with stakeholders at all levels. - Create and maintain infrastructure solution designs and architecture patterns - Translate business requirements into secure, scalable, and supportable technology solutions - Identify risks and propose practical mitigations - Collaborate closely with business and technical teams to influence architecture direction - Support the design and delivery of mission-critical systems
Start: ASAP Duration: 6 months Pay: up to £510 per day (inside IR35) Location: Guildford (2-days per week) We're seeking a Senior Infrastructure Solution Architect for a high-impact role within a fast-moving, regulated organisation. You'll be responsible for designing repeatable infrastructure patterns and secure, resilient solutions that align with business and IT strategy. This is a senior-level role requiring strong technical expertise and the ability to engage with stakeholders at all levels. - Create and maintain infrastructure solution designs and architecture patterns - Translate business requirements into secure, scalable, and supportable technology solutions - Identify risks and propose practical mitigations - Collaborate closely with business and technical teams to influence architecture direction - Support the design and delivery of mission-critical systems
more
NEW

Magento Developer

WHD Consulting Ltd
London
From £450 to £520 per day
My client is looking for a talentedMagento Developerwith strong backend experience to join their dynamic dev team. If you enjoy building custom ecommerce solutions, integrating complex systems, and collaborating in a supportive tech environment, this could be the role for you. This role is predominately remote, although the team meet up onsite once a month near Farringdon. There is no specific requirement to attend every month, however some flexibility would be beneficial. The Role Youll be responsible for delivering tailored features and functionality across a variety of ecommerce projects. * Developing and maintaining bespoke Magento functionality. * Working with the development team to ensure new code aligns with the Magento framework and delivers great performance. * Reviewing code, pull requests, and supporting peer development.
My client is looking for a talentedMagento Developerwith strong backend experience to join their dynamic dev team. If you enjoy building custom ecommerce solutions, integrating complex systems, and collaborating in a supportive tech environment, this could be the role for you. This role is predominately remote, although the team meet up onsite once a month near Farringdon. There is no specific requirement to attend every month, however some flexibility would be beneficial. The Role Youll be responsible for delivering tailored features and functionality across a variety of ecommerce projects. * Developing and maintaining bespoke Magento functionality. * Working with the development team to ensure new code aligns with the Magento framework and delivers great performance. * Reviewing code, pull requests, and supporting peer development.
more
NEW
Up to £600 per day Outside IR35 London (Hybrid) The Role As a Product Owner with a specialist focus on data mapping, you’ll be at the heart of enabling robust, scalable, and intelligent data flows across our internal systems. You'll define and deliver product capabilities that ensure seamless data flow between systems, APIs, and third-party platforms, driving clarity, consistency, and business value across our data landscape. * Own the data mapping product area from vision to execution. * Translate business needs into detailed data mapping requirements and user stories. * Collaborate with engineering, data, and compliance teams to implement mappings across internal systems. * Ensure data accuracy, consistency, and traceability across the platform. * Maintain documentation and support agile delivery practices.
Up to £600 per day Outside IR35 London (Hybrid) The Role As a Product Owner with a specialist focus on data mapping, you’ll be at the heart of enabling robust, scalable, and intelligent data flows across our internal systems. You'll define and deliver product capabilities that ensure seamless data flow between systems, APIs, and third-party platforms, driving clarity, consistency, and business value across our data landscape. * Own the data mapping product area from vision to execution. * Translate business needs into detailed data mapping requirements and user stories. * Collaborate with engineering, data, and compliance teams to implement mappings across internal systems. * Ensure data accuracy, consistency, and traceability across the platform. * Maintain documentation and support agile delivery practices.
more
FEATUREDNEW
Cardiff Based - Hybrid Working A large financial organisation is seeking a diligent Business Test Analyst to support the development of business test strategies and test plans. This role involves collaborating with various stakeholders to ensure the delivery of high-quality testing outcomes that align with business requirements. Responsibilities * Contribute to and support the development of business test strategies and test plans across multiple markets. * Demonstrate strong capabilities in functional and business acceptance testing while collaborating effectively with business stakeholders. * Translate business requirements and operational workflows into test scenarios and relevant test cases. * Define, document, and maintain business test scenarios and test cases in collaboration with business stakeholders, analysts, and product teams.
Cardiff Based - Hybrid Working A large financial organisation is seeking a diligent Business Test Analyst to support the development of business test strategies and test plans. This role involves collaborating with various stakeholders to ensure the delivery of high-quality testing outcomes that align with business requirements. Responsibilities * Contribute to and support the development of business test strategies and test plans across multiple markets. * Demonstrate strong capabilities in functional and business acceptance testing while collaborating effectively with business stakeholders. * Translate business requirements and operational workflows into test scenarios and relevant test cases. * Define, document, and maintain business test scenarios and test cases in collaboration with business stakeholders, analysts, and product teams.
more
PREMIUMNEW

Java Developer

Data Inc. (UK) Ltd
W1, Central London
From £400 to £500 per day
Job Title: Java Developer Location: London UK- 5 Days onsite Vacancy Type:Contract- 12 Months Pay rate:- - * 3+ years of software development experience in one or more general purpose programming languages such as Java / JavaScript / Python, and expected to be hands-on to software development tasks Solid Experience in AWS Cloud development/deployment (other Cloud dev exp. would be a plus) * Experience implementing REST APIs (knowledge in API security would be a plus), unit tests and using a test-driven development approach and associated testing tools Familiar with SDLC process Experience in smart contract programming to develop commercial solutions (e.g. EVM, DAML), on private and public blockchains would be a plus
Job Title: Java Developer Location: London UK- 5 Days onsite Vacancy Type:Contract- 12 Months Pay rate:- - * 3+ years of software development experience in one or more general purpose programming languages such as Java / JavaScript / Python, and expected to be hands-on to software development tasks Solid Experience in AWS Cloud development/deployment (other Cloud dev exp. would be a plus) * Experience implementing REST APIs (knowledge in API security would be a plus), unit tests and using a test-driven development approach and associated testing tools Familiar with SDLC process Experience in smart contract programming to develop commercial solutions (e.g. EVM, DAML), on private and public blockchains would be a plus
more
FEATUREDNEW

AWS Architect

Stott & May Professional Search Limited
LU1, Luton
Up to £0.00 per annum
Start: ASAP Duration: 6 months+ Location: Luton (3-days per week in the office) Pay: negotiable rates, inside IR35 We're seeking an experienced AWS Automation Architect to lead solution design, support development teams, and ensure successful integration of AWS technologies. - Lead discussions on AWS automation capabilities - Design scalable automation solutions across AWS services - Guide developers through technical challenges - Maintain high standards of product quality - Work with the Project Manager to meet delivery timelines - Ensure solutions align with business goals and tech strategy - Provide technical mentorship to the team - Strong knowledge of Amazon Lex and Amazon Connect - Hands-on experience with Lambda, DynamoDB, S3, API Gateway, CloudWatch - Excellent problem-solving and communication skills - Ability to work independently and collaboratively
Start: ASAP Duration: 6 months+ Location: Luton (3-days per week in the office) Pay: negotiable rates, inside IR35 We're seeking an experienced AWS Automation Architect to lead solution design, support development teams, and ensure successful integration of AWS technologies. - Lead discussions on AWS automation capabilities - Design scalable automation solutions across AWS services - Guide developers through technical challenges - Maintain high standards of product quality - Work with the Project Manager to meet delivery timelines - Ensure solutions align with business goals and tech strategy - Provide technical mentorship to the team - Strong knowledge of Amazon Lex and Amazon Connect - Hands-on experience with Lambda, DynamoDB, S3, API Gateway, CloudWatch - Excellent problem-solving and communication skills - Ability to work independently and collaboratively
more
NEW

AWS Backend Developer

CEI England Limited T/A CEI GB
Isleworth, London, TW7 5QD
£345 per day
Hello, Role AWS Developer Duration 6+ Months Location Osterley Greater London TW7 5QD (Hybrid/2 days a week) AWS Lambda Javascript/Typescript Dynamo DB Appsync StepFunctions You have at least 2 years of experience as an AWS software developer this is a must. AWS certification is a bonus Expertise in working and following the best practices of using AWS serverless. Proven ability to refactor and write performant and clean code Existing experience or ability to very quickly pick up JavaScript/Typescript. It will be nice if you have experience working with Python, React, Lambda, DynamoDB, S3, AppSync/GraphQL, API Gateway, Step Functions etc Responsibility for reviewing and testing your own and teammates code Restless attitude and a drive to always make things better and quicker Passion for technology and a fast pace of deliver
Hello, Role AWS Developer Duration 6+ Months Location Osterley Greater London TW7 5QD (Hybrid/2 days a week) AWS Lambda Javascript/Typescript Dynamo DB Appsync StepFunctions You have at least 2 years of experience as an AWS software developer this is a must. AWS certification is a bonus Expertise in working and following the best practices of using AWS serverless. Proven ability to refactor and write performant and clean code Existing experience or ability to very quickly pick up JavaScript/Typescript. It will be nice if you have experience working with Python, React, Lambda, DynamoDB, S3, AppSync/GraphQL, API Gateway, Step Functions etc Responsibility for reviewing and testing your own and teammates code Restless attitude and a drive to always make things better and quicker Passion for technology and a fast pace of deliver
more

Cyber Security Engineer - DevSecOp

SUMMER-BROWNING ASSOCIATES LIMITED
London
Up to £0.00 per day + Excellent Day Rates
Summer-Browning Associates is currently assisting our client in the Public Sector, who is looking for a Cyber Security Engineering for an initial six-month assignment. Location: Hybrid working - London * Experience in penetration testing and vulnerability assessments of web applications, APIs, and cloud infrastructure. * Experience in integrating automated security tools into CI/CD pipelines (SAST, DAST, dependency checking, IaC, etc.) and making necessary recommendations. * Proficiency in security testing tools such as Burp Suite, OWASP ZAP, Nikto, Nmap, Metasploit, etc. * Ability to identify vulnerabilities and ensure secure coding practices. * Experience in maintaining security assurance across the SDLC in line with NCSC guidelines. * Knowledge of DevSecOps principles and tools (e.g., Veracode, SonarQube, GitHub Advanced Security, IaC scanning, etc.).
Summer-Browning Associates is currently assisting our client in the Public Sector, who is looking for a Cyber Security Engineering for an initial six-month assignment. Location: Hybrid working - London * Experience in penetration testing and vulnerability assessments of web applications, APIs, and cloud infrastructure. * Experience in integrating automated security tools into CI/CD pipelines (SAST, DAST, dependency checking, IaC, etc.) and making necessary recommendations. * Proficiency in security testing tools such as Burp Suite, OWASP ZAP, Nikto, Nmap, Metasploit, etc. * Ability to identify vulnerabilities and ensure secure coding practices. * Experience in maintaining security assurance across the SDLC in line with NCSC guidelines. * Knowledge of DevSecOps principles and tools (e.g., Veracode, SonarQube, GitHub Advanced Security, IaC scanning, etc.).
more
Senior QA Engineer (Axe core, Java, Playwright or Cypress, Typescript) - Remote Day rate: £350 - £450 (Inside IR35) Duration: 3 months Start: ASAP My new client is looking for a dedicated and proactive Senior QA Engineer with a strong background in automated testing to join our dynamic team. The ideal candidate will have hands-on experience with Playwright or Cypress and a solid understanding of API testing as well as a keen eye for detail. Proficiency in Python, experience with accessibility or performance testing would also be a bonus. This role has a primary focus on writing, maintaining and improving automated tests to support our automation-first approach to quality. You are a confident communicator with stakeholders including developers, product managers, and business analysts, you understand requirements and provide feedback on quality and testability.
Senior QA Engineer (Axe core, Java, Playwright or Cypress, Typescript) - Remote Day rate: £350 - £450 (Inside IR35) Duration: 3 months Start: ASAP My new client is looking for a dedicated and proactive Senior QA Engineer with a strong background in automated testing to join our dynamic team. The ideal candidate will have hands-on experience with Playwright or Cypress and a solid understanding of API testing as well as a keen eye for detail. Proficiency in Python, experience with accessibility or performance testing would also be a bonus. This role has a primary focus on writing, maintaining and improving automated tests to support our automation-first approach to quality. You are a confident communicator with stakeholders including developers, product managers, and business analysts, you understand requirements and provide feedback on quality and testability.
more
Senior QA Engineer (Axe core, Java, Playwright or Cypress, Typescript) - Remote Day rate: £350 - £450 (Inside IR35) Duration: 3 months Start: ASAP My new client is looking for a dedicated and proactive Senior QA Engineer with a strong background in automated testing to join our dynamic team. The ideal candidate will have hands-on experience with Playwright or Cypress and a solid understanding of API testing as well as a keen eye for detail. Proficiency in Python, experience with accessibility or performance testing would also be a bonus. This role has a primary focus on writing, maintaining and improving automated tests to support our automation-first approach to quality. You are a confident communicator with stakeholders including developers, product managers, and business analysts, you understand requirements and provide feedback on quality and testability.
Senior QA Engineer (Axe core, Java, Playwright or Cypress, Typescript) - Remote Day rate: £350 - £450 (Inside IR35) Duration: 3 months Start: ASAP My new client is looking for a dedicated and proactive Senior QA Engineer with a strong background in automated testing to join our dynamic team. The ideal candidate will have hands-on experience with Playwright or Cypress and a solid understanding of API testing as well as a keen eye for detail. Proficiency in Python, experience with accessibility or performance testing would also be a bonus. This role has a primary focus on writing, maintaining and improving automated tests to support our automation-first approach to quality. You are a confident communicator with stakeholders including developers, product managers, and business analysts, you understand requirements and provide feedback on quality and testability.
more

IAM Team Lead

Motability Operations
London
Competitive Salary + Benefits
Description The Identity & Access Management (IAM) team, sitting within the Cyber Security function, ensures that access for all Motability Operations (MO) employees and customers is correct, appropriate, and secure. The IAM Technical Lead is responsible for the technical direction, engineering assurance, and operational stability of our IAM services across both internal and external domains. This includes identity federation, authentication, access governance, lifecycle automation, and privileged access planning. This is a hands-on technical leadership role, accountable for guiding a multidisciplinary team of engineers and contractors, ensuring consistent delivery, high service availability, and secure integration of identity services into core business platforms.
Description The Identity & Access Management (IAM) team, sitting within the Cyber Security function, ensures that access for all Motability Operations (MO) employees and customers is correct, appropriate, and secure. The IAM Technical Lead is responsible for the technical direction, engineering assurance, and operational stability of our IAM services across both internal and external domains. This includes identity federation, authentication, access governance, lifecycle automation, and privileged access planning. This is a hands-on technical leadership role, accountable for guiding a multidisciplinary team of engineers and contractors, ensuring consistent delivery, high service availability, and secure integration of identity services into core business platforms.
more
NEW
Role Title: Appian Developer Location: London Duration: 30/11/2025 Via Umbrella Company We are seeking a skilled and motivated Appian Developer to join our dynamic team. The ideal candidate will be responsible for designing, developing, and implementing business process management (BPM) solutions using the Appian platform. You will work closely with business analysts, stakeholders, and other developers to deliver scalable and efficient applications that meet business requirements. Design and develop BPM applications using Appian. Collaborate with cross-functional teams to gather and analyse requirements. Build and maintain Appian objects such as records, reports, interfaces, and process models. Integrate Appian applications with external systems using APIs and web services. Participate in code reviews, testing, and deployment activities.
Role Title: Appian Developer Location: London Duration: 30/11/2025 Via Umbrella Company We are seeking a skilled and motivated Appian Developer to join our dynamic team. The ideal candidate will be responsible for designing, developing, and implementing business process management (BPM) solutions using the Appian platform. You will work closely with business analysts, stakeholders, and other developers to deliver scalable and efficient applications that meet business requirements. Design and develop BPM applications using Appian. Collaborate with cross-functional teams to gather and analyse requirements. Build and maintain Appian objects such as records, reports, interfaces, and process models. Integrate Appian applications with external systems using APIs and web services. Participate in code reviews, testing, and deployment activities.
more
PREMIUMNEW

Head Of Infrastructure Architecture

Magnus Partners Talent Solutions
London
Competitive day rate (or equivalent)
About the Company A dynamic London-based fintech startup is revolutionising financial services through cutting-edge technology. Their mission is to deliver secure, scalable, and innovative solutions that empower users in a rapidly evolving digital landscape. Join a forward-thinking team to build a next-generation platform that redefines how financial systems operate, driven by innovation, collaboration, and excellence. Role Overview As the Technical Lead for Infrastructure & Architecture, youll spearhead the development of a transformative financial platform, reporting directly to the CEO. Leading a compact team of two developers, youll design and deliver a robust, secure architecture that sets new industry standards. This hands-on role demands deep expertise in full-stack development, blockchain technologies, and a relentless drive to innovate.
About the Company A dynamic London-based fintech startup is revolutionising financial services through cutting-edge technology. Their mission is to deliver secure, scalable, and innovative solutions that empower users in a rapidly evolving digital landscape. Join a forward-thinking team to build a next-generation platform that redefines how financial systems operate, driven by innovation, collaboration, and excellence. Role Overview As the Technical Lead for Infrastructure & Architecture, youll spearhead the development of a transformative financial platform, reporting directly to the CEO. Leading a compact team of two developers, youll design and deliver a robust, secure architecture that sets new industry standards. This hands-on role demands deep expertise in full-stack development, blockchain technologies, and a relentless drive to innovate.
more

Software Engineer - SC Cleared

Stott & May Professional Search Limited
London
Up to £0.00 per day
Hybrid - 2 Days a Week London We're looking for a Software Engineer with strong skills in Node.js, React, and TypeScript to build scalable web applications. You'll work across the stack, using Docker, Azure Web Apps, and ElasticSearch. Develop full-stack applications with Node.js, React, and TypeScript Build and maintain RESTful APIs and responsive UIs Containerize and deploy apps using Docker and Azure Web Apps Implement and optimize search with ElasticSearch Collaborate with product and DevOps teams Write clean, testable code and participate in code reviews Solid experience with Node.js, React, and TypeScript Familiarity with Docker, Azure Web Apps, and ElasticSearch Good understanding of REST APIs and modern frontend tools Comfortable with Git workflows and agile development Strong communication and problem-solving skills
Hybrid - 2 Days a Week London We're looking for a Software Engineer with strong skills in Node.js, React, and TypeScript to build scalable web applications. You'll work across the stack, using Docker, Azure Web Apps, and ElasticSearch. Develop full-stack applications with Node.js, React, and TypeScript Build and maintain RESTful APIs and responsive UIs Containerize and deploy apps using Docker and Azure Web Apps Implement and optimize search with ElasticSearch Collaborate with product and DevOps teams Write clean, testable code and participate in code reviews Solid experience with Node.js, React, and TypeScript Familiarity with Docker, Azure Web Apps, and ElasticSearch Good understanding of REST APIs and modern frontend tools Comfortable with Git workflows and agile development Strong communication and problem-solving skills
more
NEW
Role: Cyber Security Engineer Salary/Rate: up to £700 per day (inside IR35) Location: Hybrid London Contract Duration: until October 2025 We are currently looking for a Cyber Security Engineer for our government client. This Cyber Security Engineer role is hybrid, based between 2-3 days per week on site in central London and the remainder of the week working remotely. The contract for the Cyber Security Engineer position is until October 2025 with potential to extend, operating inside IR35. Security Clearance: Security Check ('SC Clearance') This role is inside IR35 - Due to the service of the role, it will now be based on an Umbrella solution. * Experience penetration testing, ethical hacking, or completing vulnerability assessments. * Security testing tools (e.g., Burp Suite, OWASP ZAP, Nikto, Nmap, Metasploit, etc.).
Role: Cyber Security Engineer Salary/Rate: up to £700 per day (inside IR35) Location: Hybrid London Contract Duration: until October 2025 We are currently looking for a Cyber Security Engineer for our government client. This Cyber Security Engineer role is hybrid, based between 2-3 days per week on site in central London and the remainder of the week working remotely. The contract for the Cyber Security Engineer position is until October 2025 with potential to extend, operating inside IR35. Security Clearance: Security Check ('SC Clearance') This role is inside IR35 - Due to the service of the role, it will now be based on an Umbrella solution. * Experience penetration testing, ethical hacking, or completing vulnerability assessments. * Security testing tools (e.g., Burp Suite, OWASP ZAP, Nikto, Nmap, Metasploit, etc.).
more
NEW
This is a 5 month contract, paying £700 per day, inside IR35, hybrid working (2 days per week on-site in London) You will be required to have an active SC Clearance You will join the Application Security Team. This is an AppSec team focused on building security automation into delivery pipelines and conducting security focused tests against digital services. Key Responsibilities * Perform penetration testing and vulnerability assessments of web applications, APIs, and cloud infrastructure. * Evaluate the automated security tooling into CI/CD pipelines (SAST, DAST, dependency checking, IaC etc), and make necessary recommendations. * Collaborate with developers to remediate identified vulnerabilities and ensure secure code practices. * Provide expert input on cloud security (AWS, Azure, or GCP) and DevSecOps tooling.
This is a 5 month contract, paying £700 per day, inside IR35, hybrid working (2 days per week on-site in London) You will be required to have an active SC Clearance You will join the Application Security Team. This is an AppSec team focused on building security automation into delivery pipelines and conducting security focused tests against digital services. Key Responsibilities * Perform penetration testing and vulnerability assessments of web applications, APIs, and cloud infrastructure. * Evaluate the automated security tooling into CI/CD pipelines (SAST, DAST, dependency checking, IaC etc), and make necessary recommendations. * Collaborate with developers to remediate identified vulnerabilities and ensure secure code practices. * Provide expert input on cloud security (AWS, Azure, or GCP) and DevSecOps tooling.
more
All applicants must hold an active SC clearance. My client is on the hunt for a Cyber Security Engineer to join a central government client of theirs. You will be joining an AppSec team focused on building security automation into delivery pipelines and conducting security focused tests against digital services. Key Responsibilities * Perform penetration testing and vulnerability assessments of web applications, APIs, and cloud infrastructure. * Evaluate the automated security tooling into CI/CD pipelines (SAST, DAST, dependency checking, IaC etc), and make necessary recommendations. * Collaborate with developers to remediate identified vulnerabilities and ensure secure code practices. * Provide expert input on cloud security (AWS, Azure, or GCP) and DevSecOps tooling. * Assist in maintaining security assurance across the SDLC in line with MoJ and NCSC guidelines.
All applicants must hold an active SC clearance. My client is on the hunt for a Cyber Security Engineer to join a central government client of theirs. You will be joining an AppSec team focused on building security automation into delivery pipelines and conducting security focused tests against digital services. Key Responsibilities * Perform penetration testing and vulnerability assessments of web applications, APIs, and cloud infrastructure. * Evaluate the automated security tooling into CI/CD pipelines (SAST, DAST, dependency checking, IaC etc), and make necessary recommendations. * Collaborate with developers to remediate identified vulnerabilities and ensure secure code practices. * Provide expert input on cloud security (AWS, Azure, or GCP) and DevSecOps tooling. * Assist in maintaining security assurance across the SDLC in line with MoJ and NCSC guidelines.
more

Full Stack Python Developer

Eteam Workforce Limited
London
From £50 to £60 per hour
Job Title: Full Stack Python Engineer Contract Duration: 6 months (Possibility of extension) Location: UK - Remote Duties As Full Stack Engineer, you will work in small teams in a highly collaborative way, use the latest technologies and enjoy seeing the direct impact from your work. Our highly skilled system architects and development managers configure software packages and build custom applications, creating the foundation for rapid and cost-effective implementation of systems that maximize value from day one. Our development teams are small, flexible and employ agile methodologies to quickly provide our consultants with the solutions they need. We combine the latest open source technologies together with traditional Enterprise software products.
Job Title: Full Stack Python Engineer Contract Duration: 6 months (Possibility of extension) Location: UK - Remote Duties As Full Stack Engineer, you will work in small teams in a highly collaborative way, use the latest technologies and enjoy seeing the direct impact from your work. Our highly skilled system architects and development managers configure software packages and build custom applications, creating the foundation for rapid and cost-effective implementation of systems that maximize value from day one. Our development teams are small, flexible and employ agile methodologies to quickly provide our consultants with the solutions they need. We combine the latest open source technologies together with traditional Enterprise software products.
more

Python Full Stack Developer

Eteam Workforce Limited
London
From £50 to £55 per hour
Job Title: Full Stack Engineer Location: London, UK (Remote) Job Type: Full time contract, 6 months with possibility of extension Software Engineer (6 years minimum experience preferably) Strong programming skills in Python Expertise with SQL databases, cloud equivalent such as Amazon RDS(PostgreSQL, MySQL) Experience utilizing LLMs and prompt engineering Familiarity with GenAI services and frameworks such as AWS Bedrock, LangGraph Familiarity with RAG Pipeline and Vector database Design and develop RESTful APIs ensuring they are efficient, scalable, and secure Experience with CI/CD pipeline setup and management. Experience in using AWS cloud platform for deploying and managing applications Familiarity with GitHub for version control and code collaboration. Knowledge of containerization Strong conceptual problem-solving Ownership mindset
Job Title: Full Stack Engineer Location: London, UK (Remote) Job Type: Full time contract, 6 months with possibility of extension Software Engineer (6 years minimum experience preferably) Strong programming skills in Python Expertise with SQL databases, cloud equivalent such as Amazon RDS(PostgreSQL, MySQL) Experience utilizing LLMs and prompt engineering Familiarity with GenAI services and frameworks such as AWS Bedrock, LangGraph Familiarity with RAG Pipeline and Vector database Design and develop RESTful APIs ensuring they are efficient, scalable, and secure Experience with CI/CD pipeline setup and management. Experience in using AWS cloud platform for deploying and managing applications Familiarity with GitHub for version control and code collaboration. Knowledge of containerization Strong conceptual problem-solving Ownership mindset
more

D365 CE Developer

La Fosse
London
£600 - 650 per day + Outside IR35
Job Title: D365 CE Developer (Contract) Location: Central London (Hybrid – 3 days onsite per week) Contract Duration: 3 Months - Outside IR35 We are seeking an experienced Dynamics 365 Customer Engagement (CE) Developer for a 3-month contract. The ideal candidate will have strong experience in data migration and system integration within the D365 CE environment. This hybrid role requires 3 days per week onsite in Central London. * Develop and customise solutions in Dynamics 365 CE * Lead and support data migration activities * Integrate D365 CE with external systems using APIs and middleware * Collaborate with business and technical teams to ensure seamless delivery * Proven experience as a D365 CE Developer * Strong skills in data migration and integration * Hands-on experience with Power Platform, JavaScript, plug-ins, and workflows
Job Title: D365 CE Developer (Contract) Location: Central London (Hybrid – 3 days onsite per week) Contract Duration: 3 Months - Outside IR35 We are seeking an experienced Dynamics 365 Customer Engagement (CE) Developer for a 3-month contract. The ideal candidate will have strong experience in data migration and system integration within the D365 CE environment. This hybrid role requires 3 days per week onsite in Central London. * Develop and customise solutions in Dynamics 365 CE * Lead and support data migration activities * Integrate D365 CE with external systems using APIs and middleware * Collaborate with business and technical teams to ensure seamless delivery * Proven experience as a D365 CE Developer * Strong skills in data migration and integration * Hands-on experience with Power Platform, JavaScript, plug-ins, and workflows
more
FEATUREDNEW

Automation Developer

Networking People (UK) Limited
London
£550 - £600 per day + Deemed Inside IR35 via Umbrella solution
Contract: Automation Python Developer Start Date: ASAP Duration: 6 months Location: Remote working (possible occasional travel to London site) Rate: £550 - 600 a day (Deemed Inside IR35 via umbrella solution) We are urgently seeking an experienced Automation Developer (With Python and Jinja2 expertise) to join a major financial services organisation on a business-critical infrastructure modernisation and automation programme. This is a fantastic opportunity to play a key role in delivering cutting-edge automation solutions within a dynamic and forward-thinking environment. * Assist with migrating multi-tenanted network services onto a new platform. * Drive improvements in the UAT process through automation. * Build automation capabilities for infrastructure testing.
Contract: Automation Python Developer Start Date: ASAP Duration: 6 months Location: Remote working (possible occasional travel to London site) Rate: £550 - 600 a day (Deemed Inside IR35 via umbrella solution) We are urgently seeking an experienced Automation Developer (With Python and Jinja2 expertise) to join a major financial services organisation on a business-critical infrastructure modernisation and automation programme. This is a fantastic opportunity to play a key role in delivering cutting-edge automation solutions within a dynamic and forward-thinking environment. * Assist with migrating multi-tenanted network services onto a new platform. * Drive improvements in the UAT process through automation. * Build automation capabilities for infrastructure testing.
more
NEW

Salesforce Engineer

Queen Square Recruitment Limited
SL4, Windsor
Up to £500 per day
Our client, a leading global organisation, is partnering with a prestigious end client in Windsor. We are excited to offer a fantastic opportunity for a talented Salesforce Vlocity Engineerto join a dynamic and agile development team on an initial 6 months contract, with the potential for extension. If you are interested and have the relevant skills and experience, please apply promptly to discuss further. Location: Windsor, UK (Hybrid 1 day onsite per week) Day Rate: Inside IR35 - £450 - £500 (Flexible) Duration: 6 months We are seeking an experienced Salesforce Vlocity Developer to support the delivery of a major project within the Energy & Utilities domain. This hybrid position involves developing advanced Salesforce Industry solutions and offers a chance to contribute to high-impact initiatives.
Our client, a leading global organisation, is partnering with a prestigious end client in Windsor. We are excited to offer a fantastic opportunity for a talented Salesforce Vlocity Engineerto join a dynamic and agile development team on an initial 6 months contract, with the potential for extension. If you are interested and have the relevant skills and experience, please apply promptly to discuss further. Location: Windsor, UK (Hybrid 1 day onsite per week) Day Rate: Inside IR35 - £450 - £500 (Flexible) Duration: 6 months We are seeking an experienced Salesforce Vlocity Developer to support the delivery of a major project within the Energy & Utilities domain. This hybrid position involves developing advanced Salesforce Industry solutions and offers a chance to contribute to high-impact initiatives.
more
NEW
We are looking for a Lead IT Application Owner to take strategic and technical ownership of a application for one of our leading customers in the telecom sector. This role is ideal for someone with a deep technical background who thrives on defining architecture standards, ensuring integration consistency, and safeguarding data quality across complex system landscapes. As a key bridge between architecture, development, DevOps, and business, you will lead with both vision and technical rigor to ensure long-term application stability, performance, and compliance. * Define and maintain technical and functional standards for the application landscape. * Ensure robust API contracts that enable consistent and stable integrations with surrounding systems.
We are looking for a Lead IT Application Owner to take strategic and technical ownership of a application for one of our leading customers in the telecom sector. This role is ideal for someone with a deep technical background who thrives on defining architecture standards, ensuring integration consistency, and safeguarding data quality across complex system landscapes. As a key bridge between architecture, development, DevOps, and business, you will lead with both vision and technical rigor to ensure long-term application stability, performance, and compliance. * Define and maintain technical and functional standards for the application landscape. * Ensure robust API contracts that enable consistent and stable integrations with surrounding systems.
more
FEATURED

What is the average salary for API in London?

Average salary per year
£72,499

The average salary for a API in London is £72,499. API in London salaries range from £62,499 to £87,499.

Frequently Asked Questions

How many contract API jobs are there in London?
There are 167 contract API jobs within 20 miles of London available on Jobsite right now.
Where in London are these contract jobs?
You can find contract jobs in City of London, South West London, West London.
What other similar jobs are there to contract API jobs in London?
As well as contract API jobs in London, you can find contract IT, Software Development, Management, amongst many others.