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        1 Temporary API job in Maidenhead + 20 miles

        Contract Developer - Node.js, REST API, SIP, VOIP

        Reed Technology
        RG12, Bracknell
        £500 - £550 per day
        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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        1 exact match is outside your preferred location

        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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        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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        Lead Software Developer

        Spectrum It Recruitment Limited
        RG12, Bracknell
        £80000 - £90000 per annum
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        Credit Risk .Net Developer

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        £600.0 - £650.0 per day + Up to £650pd Umbrella
        I am currently working with a global Investment Bank who are actively seeking a .Net Developer to join a leading team in the risk space. What you'll need to succeed * 10+ years' .Net Development experience within investment banking. * Strong experience with Azure Cloud Services. * Good understanding of DevOps best practices. * Experience with on-premises SQL services. * Good knowledge of credit/market risk. What you'll get in return * Up to £650pd in-scope (Umbrella). * Initial 6-month contract with extensions. * London-based hybrid working. What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.
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        Lead Software Developer

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        Senior Software Engineer

        Spectrum It Recruitment Limited
        PO14, Fareham
        £70000 - £75000 per annum
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        Spectrum It Recruitment Limited
        OX13, Abingdon
        Up to £75000 per annum
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        Java Developer (VP)

        TEKsystems
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        118000.00 - 128000.00 GBP/Salary
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        Software Engineer

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        £350 - £450 per day
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        Description Thought Machines mission is bold to properly and permanently rid the worlds banks of legacy technology. To achieve this, we have developed the foundations of modern banking through core and payments technology, which run natively in the cloud. What we are attempting is challenging and requires great people working together to build exceptional technology. We have grown rapidly over the past few years, expanding our team to more than 550 individuals across offices in London, New York, Singapore, and Sydney. We have raised more than $500m in funding and are now valued at $2.7bn. Our investors include Molten Ventures, Eurazeo, Intesa Sanpaolo, Temasek, Nyca Partners, JPMorgan Chase Strategic Investments, Standard Chartered Ventures, and more.
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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.
        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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        FEATURED
        London, UK 6 Month Contract An incredible opportunity for an experienced Senior Go Developer with strong backend engineering skills to join a prestigious tech client on a contract basis. Known for its high bar for engineering quality, this isn't your typical banking or fintech gig - contractors here are genuinely embedded, involved, and making meaningful impact from day one. As a Senior Go Developer, you'll play a key role in building mission-critical, data-driven services that power core parts of the platform. You'll take ownership across the full development lifecycle, from system design and implementation to optimisation and release. You'll be working in an open, fast-moving environment where ideas get tested quickly and good engineering practices are taken seriously. If you like seeing your work go live within days - not weeks - you'll fit right in.
        London, UK 6 Month Contract An incredible opportunity for an experienced Senior Go Developer with strong backend engineering skills to join a prestigious tech client on a contract basis. Known for its high bar for engineering quality, this isn't your typical banking or fintech gig - contractors here are genuinely embedded, involved, and making meaningful impact from day one. As a Senior Go Developer, you'll play a key role in building mission-critical, data-driven services that power core parts of the platform. You'll take ownership across the full development lifecycle, from system design and implementation to optimisation and release. You'll be working in an open, fast-moving environment where ideas get tested quickly and good engineering practices are taken seriously. If you like seeing your work go live within days - not weeks - you'll fit right in.
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        Are you an enthusiastic, well-rounded, mid-to-lead Software Engineer, eager to grow the breadth and depth of your technical abilities, and enhance your responsibilities, working at the sharp end of missions in the NatSec domain? Are you happy to work "high-side", on-site 3-5 days/week? * Java * Kotlin * Python * Kubernetes * AWS * JavaScript * React * Node.js Nodding along so far? We should chat. Fortice work with 18 compass-point supplier, whether you want to sit in a prime seat, join a well-known SME or make a name for yourself at a start-up, we've got you covered! Salary:to £95,000 total comp package Start dates:December 2025 - February 2026 Please apply directly or message me to find out more.
        Are you an enthusiastic, well-rounded, mid-to-lead Software Engineer, eager to grow the breadth and depth of your technical abilities, and enhance your responsibilities, working at the sharp end of missions in the NatSec domain? Are you happy to work "high-side", on-site 3-5 days/week? * Java * Kotlin * Python * Kubernetes * AWS * JavaScript * React * Node.js Nodding along so far? We should chat. Fortice work with 18 compass-point supplier, whether you want to sit in a prime seat, join a well-known SME or make a name for yourself at a start-up, we've got you covered! Salary:to £95,000 total comp package Start dates:December 2025 - February 2026 Please apply directly or message me to find out more.
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        NEW

        Software Engineer - Full Stack

        Anson Mccade
        South East
        GBP 70,035.00 per year;GBP 700.00 per week;GBP 70,000.00 per year;GBP
        ££700 Inside IR35 GBP Onsite WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Up to £700 Inside IR35 Location: London or Bristol Our client is a trusted digital consultancy working at the heart of national security, law enforcement, and defence. They deliver secure, mission-critical software solutions that help protect the UK and its interests. With a strong focus on innovation, collaboration, and agility, they empower engineers to solve complex challenges in high-trust environments. As a Full Stack Software Engineer, you'll work closely with law enforcement customers to design, build, and maintain secure applications and services. You'll be part of agile teams with direct access to end-users, enabling rapid feedback and continuous improvement.
        ££700 Inside IR35 GBP Onsite WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Up to £700 Inside IR35 Location: London or Bristol Our client is a trusted digital consultancy working at the heart of national security, law enforcement, and defence. They deliver secure, mission-critical software solutions that help protect the UK and its interests. With a strong focus on innovation, collaboration, and agility, they empower engineers to solve complex challenges in high-trust environments. As a Full Stack Software Engineer, you'll work closely with law enforcement customers to design, build, and maintain secure applications and services. You'll be part of agile teams with direct access to end-users, enabling rapid feedback and continuous improvement.
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