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Contract Developer - Node.js development, REST API design, and SIP-based communications * Duration: 3 months (Outside IR35) * Location: Bracknell / Hybrid Contract Developer with deep expertise in Node.js development, REST API design, and SIP-based communications. This role is crucial for supporting the migration of legacy device management, call control, and configuration workflows to a secure, scalable cloud environment. * Cloud Migration & Refactoring: Analyse existing applications to identify dependencies on on-prem infrastructure and design cloud-native solutions. Refactor services to enhance scalability and reliability in the cloud. * Service & API Development: Develop and maintain secure REST APIs for functionalities such as SIP authentication, call control, and real-time data interactions.
Contract Developer - Node.js development, REST API design, and SIP-based communications * Duration: 3 months (Outside IR35) * Location: Bracknell / Hybrid Contract Developer with deep expertise in Node.js development, REST API design, and SIP-based communications. This role is crucial for supporting the migration of legacy device management, call control, and configuration workflows to a secure, scalable cloud environment. * Cloud Migration & Refactoring: Analyse existing applications to identify dependencies on on-prem infrastructure and design cloud-native solutions. Refactor services to enhance scalability and reliability in the cloud. * Service & API Development: Develop and maintain secure REST APIs for functionalities such as SIP authentication, call control, and real-time data interactions.
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Job Description: Responsibilities Understanding and Knowledge of Technologies Bookassist Products You should have a broad knowledge of Bookassist products & the technologies used to build them. When you lack specific knowledge you should be able to acquire it to make changes and improvements to the product. Understanding Build You should understand the build process for Bookassist software, and be involved writing and maintaining for products you own Full control of the development environment set up You should have a good understanding and control of the local environment set up, including remote development.
Job Description: Responsibilities Understanding and Knowledge of Technologies Bookassist Products You should have a broad knowledge of Bookassist products & the technologies used to build them. When you lack specific knowledge you should be able to acquire it to make changes and improvements to the product. Understanding Build You should understand the build process for Bookassist software, and be involved writing and maintaining for products you own Full control of the development environment set up You should have a good understanding and control of the local environment set up, including remote development.
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Staff Software Engineer Java - Tech for Good
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£100000 - £120000 per annum
Staff Software Engineer / Developer (Java Kotlin AWS React) Hybrid WFH to £110k Would you like to progress your career in an impactful hands-on Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded by two highly successful, Cambridge University educated management consultants, that is aiming to improve patient and social care for all by using complex technology to improve access to patient records, enabling collaboration between healthcare providers and improving nursing and medical care. As a Staff Software Engineer you will collaborate with the CTO on the overall design and architecture of the products' tech stack, working on Greenfield applications. The tech stack is based on Kotlin, SpringBoot and AWS backend with TypeScript, React and Next.js on the front end.
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* Open to UK/EU-Based Candidates Only * Outside IR35 * 9-12 Month Initial Contract | Start ASAP | Likely Extension New contract opportunity for an experienced .NET Developer to join a high-profile programme in the banking/fintech sector, delivering secure enterprise applications and integrating AI/ML solutions. * Independently manage and deliver technical projects end-to-end - greenfield project experience. * Design, develop, test, and deploy enterprise applications using Microsoft technologies. * Build secure fintech workflows aligned with compliance (GDPR, OAuth, encryption). * Integrate and deploy AI/ML components (NLP and recommendation systems). * Collaborate in an Agile (Scrum/Kanban) environment with technical and business teams. * Strong experience with .NET, C#, Azure, Power Platform * Proven background building secure enterprise / banking systems
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Contract - 6 Months East Sussex Hybrid model (3 days p/w on site) £375 - 425 p/d (outside IR35) Our client an industry leading private sector business located in East Sussex is looking for a full stack .Net developer. Key Roles * Participate in migration of legacy systems built in C#, VB.NET, Angular, using SQL Server technologies. * Maintaining applications, ensuring reliability, maintainability, and evolution. * Act as a liaison between the development team and internal business stakeholders. * Implementation of modern architectures: micro services, containerised services, and serverless cloud-native components in AWS. * Diagnose and resolve complex support issues. * Collaborate with Business Analysts and Team Leaders to refine deliverables and technical solutions. * CI/CD pipelines, and deployment processes using GitHub and Azure DevOps.
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Senior Software Developer - £65,000 to £85,000 - Hybrid - London
Senior Software Developer - £65,000 to £85,000 - Hybrid - London
FryerMiles Recruitment
London
£65k - 85k per year
FryerMiles are delighted to be working with a global AI business to assist with their recruitment of a Senior Software Developer to join their team in London. This is a fantastic opportunity for Senior Software Developer to join a rapidly growing global business working with large private and government clients. * Taking project briefs from the product owner and translating this into clean, well documented and elegant code * Ensure quality in service provision in line with ISO 9001 * Ensure information security in line with ISO27001 and Cyber Essentials Plus * Development and maintenance of AI system focused on intelligence analysis and processing * Development and maintenance of the data repositories, including source, geospatial and open-source intelligence * Liaise with client stakeholders within various defence organisations
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Senior Software Engineer - Core Wealth Services
Senior Software Engineer - Core Wealth Services
Hargreaves Lansdown
London
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This is the future of HL - and the future of investing. We're building the next generation of platform for one of the UK's largest financial services companies, trusted by over 1.8 million clients and managing £130+ billion in assets. This is your opportunity to shape technology that will redefine how people invest and achieve financial freedom. All development within Core Wealth Services is greenfield. That means a clean slate - the chance to design, architect and build from the ground up using modern technologies and best practices. No legacy constraints. Just the freedom to architect scalable, robust, and future-proof solutions. Core Wealth Services forms the backbone of our investment platform, managing the essential business logic and processes that power wealth management operations.
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Senior Full Stack Engineer
Senior Full Stack Engineer
REVYBE IT RECRUITMENT LIMITED
EC1, City of London
From £100,000 to £120,000 per annum + Shares
London AI Start-up Up to £120,000 + Shares + Private Healthcare + Pension Were working with a well-funded AI start-up in London thats gearing up for huge growth. Theyre expecting to scale 10x over the next 18 months. Theyre now looking for a Senior Full-Stack Engineer to help design and build the next generation of their AI-driven platform. Reporting directly into the CTO and collaborating closely with product and research teams, this is a unique chance to take ownership across the stack and make a lasting impact in a company at the forefront of applied AI. The role This isnt your standard engineering role youll be working end-to-end across frontend, backend, and cloud infrastructure. Youll build sleek, scalable applications with React and Next.js, design and maintain robust APIs with Node.js and Python, and architect solutions deployed on AWS or GCP.
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Due to continued success they are looking to grow their software team developing products for Android platforms. The successful Senior Software Engineer is likely to have a degree in Computer Science or similar subject and commercial experience developing Android applications using .NET MAUI. Key experience * C# * MAUI * SQL Experience in any of the following would be advantageous but is not a prerequisite * Xamarin Forms * Linux * GUI design - MFC / WPF * Any exposure to embedded, real time systems If you are seeking a role of this nature please get in touch for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
Due to continued success they are looking to grow their software team developing products for Android platforms. The successful Senior Software Engineer is likely to have a degree in Computer Science or similar subject and commercial experience developing Android applications using .NET MAUI. Key experience * C# * MAUI * SQL Experience in any of the following would be advantageous but is not a prerequisite * Xamarin Forms * Linux * GUI design - MFC / WPF * Any exposure to embedded, real time systems If you are seeking a role of this nature please get in touch for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
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Day Rate: £500 - £700 Duration: 6 months IR35: Outside Scope Overview Are you a talented Software Developer eager to take on exciting project-based work with leading organisations? We are seeking skilled developers for multiple contract opportunities across various sectors, including tech, finance, and healthcare. * Engage in diverse and challenging projects, delivering immediate value to clients while enhancing your technical skills. * Collaborate with innovative teams to design and implement robust software solutions that meet business needs. * Experience the flexibility of contract work, allowing you to choose projects that align with your expertise and career goals. These contract roles are ideal for developers looking to make an impact quickly and explore different industries while enjoying the freedom of flexible assignments. Key Skills
Day Rate: £500 - £700 Duration: 6 months IR35: Outside Scope Overview Are you a talented Software Developer eager to take on exciting project-based work with leading organisations? We are seeking skilled developers for multiple contract opportunities across various sectors, including tech, finance, and healthcare. * Engage in diverse and challenging projects, delivering immediate value to clients while enhancing your technical skills. * Collaborate with innovative teams to design and implement robust software solutions that meet business needs. * Experience the flexibility of contract work, allowing you to choose projects that align with your expertise and career goals. These contract roles are ideal for developers looking to make an impact quickly and explore different industries while enjoying the freedom of flexible assignments. Key Skills
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Senior Backend Engineer
Senior Backend Engineer
Innovate Recruitment Ltd
EC1N, City of London
Up to £95,000 per annum Benefits, Bonus, Share scheme
Onsite: Tuesday, Wednesday, Thursday £80k-£95k DoE. Our client is looking for an experienced Senior Backend Engineer with strong Golang expertise to help shape the systems, processes, and architecture driving their mission. If youre a hands-on problem solver who thrives in fast-paced, collaborative environments, this is a chance to work on impactful projects while accelerating your career in a growing company. The Role Youll be part of a cross-functional squad, delivering new features and capabilities that the business depends on. The backend is built in Go, following a documentation-first approach and a service-oriented architecture. High code quality, automated testing, and seamless deployments through CI/CD pipelines into AWS are core to the way they work. What Youll Be Doing Build & Deliver * Write clean, testable, maintainable Go code
Onsite: Tuesday, Wednesday, Thursday £80k-£95k DoE. Our client is looking for an experienced Senior Backend Engineer with strong Golang expertise to help shape the systems, processes, and architecture driving their mission. If youre a hands-on problem solver who thrives in fast-paced, collaborative environments, this is a chance to work on impactful projects while accelerating your career in a growing company. The Role Youll be part of a cross-functional squad, delivering new features and capabilities that the business depends on. The backend is built in Go, following a documentation-first approach and a service-oriented architecture. High code quality, automated testing, and seamless deployments through CI/CD pipelines into AWS are core to the way they work. What Youll Be Doing Build & Deliver * Write clean, testable, maintainable Go code
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Software Security Lead, Azure .NET Developer with Security, DevSecOps
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CARRINGTON RECRUITMENT SOLUTIONS LTD
West End, W1A 1AB
From £80,000 to £85,000 per annum Excellent benefits
Microsoft Azure Lead Software Security Engineer with Development Background, .NET, Microsoft Stack Developer, DevSecOps, CISSP, CEH, CSSLP, Mainly Remote Software Security Engineer Lead is required to work for a fast-growing and exciting company based in Central London. However, this will mainly be remote and the expectation is to go into the office circa twice a week. Please read in full before applying We need someone with a Microsoft tech-stack background who has experience as a Azure DevSecOps Consultant or even a good old fashioned Unix / Linux Systems Administrator. We want someone with a development / some form of coding background who has blossomed into Software Security / Cloud Security engineer. We NEED for you to have strong Azure skills, NOT AWSalthough a blend would be acceptable.
Microsoft Azure Lead Software Security Engineer with Development Background, .NET, Microsoft Stack Developer, DevSecOps, CISSP, CEH, CSSLP, Mainly Remote Software Security Engineer Lead is required to work for a fast-growing and exciting company based in Central London. However, this will mainly be remote and the expectation is to go into the office circa twice a week. Please read in full before applying We need someone with a Microsoft tech-stack background who has experience as a Azure DevSecOps Consultant or even a good old fashioned Unix / Linux Systems Administrator. We want someone with a development / some form of coding background who has blossomed into Software Security / Cloud Security engineer. We NEED for you to have strong Azure skills, NOT AWSalthough a blend would be acceptable.
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The location of the role is London (hybrid working). The duration of the contract is 6 months. The pay rate on offer is £750 - £880 per day (via Umbrella - inside IR35). Key skills: Python, generative AI, language models/NLP, AI ML, front end development Summary Competitive candidates will have a track record of writing and shipping quality, well-documented and well-tested software in the AI/ML industry. We are looking for candidates with experience in the field of Responsible AI, preferably for generative AI or language applications. In addition to ML engineering and data science skills, ideal candidates will demonstrate a keen interest in ethical and safety aspects of using AI in drug discovery and the clinic. Key responsibilities * Define and implement key safety metrics for generative AI (and in particular language) applications.
The location of the role is London (hybrid working). The duration of the contract is 6 months. The pay rate on offer is £750 - £880 per day (via Umbrella - inside IR35). Key skills: Python, generative AI, language models/NLP, AI ML, front end development Summary Competitive candidates will have a track record of writing and shipping quality, well-documented and well-tested software in the AI/ML industry. We are looking for candidates with experience in the field of Responsible AI, preferably for generative AI or language applications. In addition to ML engineering and data science skills, ideal candidates will demonstrate a keen interest in ethical and safety aspects of using AI in drug discovery and the clinic. Key responsibilities * Define and implement key safety metrics for generative AI (and in particular language) applications.
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