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        43 Contract API jobs in Slough + 20 miles

        Senior Developer / Architect

        Young's Employment Services Ltd
        West London (W6)
        circ £75,000 - £90,000 + Bens
        Azure cloud-native AKS / Container Apps, Service Bus, API Management, Blob Storage, Azure DevOps
        Azure cloud-native AKS / Container Apps, Service Bus, API Management, Blob Storage, Azure DevOps

        Full Stack Engineer - Equity

        Dental startup
        Central London (W1)
        Up to £60,000 per annum Equity - Founding Engineer
        You'll own the full stack database architecture, API layer, and front-end, and you'll work directly with the founder on every major decision. * Architect and build the core platform from scratch schema, API, and front-end * Strong Node.js REST API development, authentication, middleware * Third-party API and webhook integration experience
        You'll own the full stack database architecture, API layer, and front-end, and you'll work directly with the founder on every major decision. * Architect and build the core platform from scratch schema, API, and front-end * Strong Node.js REST API development, authentication, middleware * Third-party API and webhook integration experience
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        GIS Technician

        Morson Edge
        Euston, North West London (NW1), NW1 3SA
        Market related
        API integration
        API integration
        PREMIUM
        Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
        Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
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        FEATURED
        Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
        Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
        more
        FEATURED
        Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
        Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
        more
        FEATURED
        Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
        Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
        more
        FEATURED

        Enterprise Architect – Corporate Technology

        Ventula Consulting Limited
        South West London (SW1)
        From £850 to £900 per day
        One of the worlds great FMCGs (FTSE 100) requires an Enterprise Architect in its Corporate Tech function. This role is anchored in Enterprise Architecture and is focused on building and maturing EA capability in an evolving Corporate Functions environment. It combines strong architectural judgement with the ability to partner, influence, and drive pragmatic, outcome-led change in a landscape with emerging maturity and legacy complexity. As an Enterprise Architect with deep expertise in Finance and Corporate Technologies, you will bridge the gap between enterprise technology and key business objectives across corporate functions. You will design and govern architectures that enable enterprise-wide transformation, ensuring alignment with CFO, CHRO, CPO, and General Counsel priorities. Your domain knowledge will drive the evolution of systems for core Finance, HR, Legal, and ...
        One of the worlds great FMCGs (FTSE 100) requires an Enterprise Architect in its Corporate Tech function. This role is anchored in Enterprise Architecture and is focused on building and maturing EA capability in an evolving Corporate Functions environment. It combines strong architectural judgement with the ability to partner, influence, and drive pragmatic, outcome-led change in a landscape with emerging maturity and legacy complexity. As an Enterprise Architect with deep expertise in Finance and Corporate Technologies, you will bridge the gap between enterprise technology and key business objectives across corporate functions. You will design and govern architectures that enable enterprise-wide transformation, ensuring alignment with CFO, CHRO, CPO, and General Counsel priorities. Your domain knowledge will drive the evolution of systems for core Finance, HR, Legal, and ...
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        NSX-T Engineer / Architect SC Cleared

        Sanderson Government and Defence
        Farnborough (GU14), GU14
        £550 - £750 per day
        Position: NSX-T Engineer / Architect - Location: Farnborough - Day Rate: Market Rate - SC Clearance Required - Our defence client is seeking a highly skilled VMware NSX-T Engineer/Architect to play a key role in designing and delivering secure, resilient, and scalable network solutions across mission-critical environments. This is an opportunity to work at the forefront of software-defined networking within a complex, high-security landscape. Key Responsibilities * Lead the design, deployment, and administration of VMware NSX-T, including logical switching, routing, distributed firewalls, and micro- * Architect robust Layer 2/3 network solutions, with deep expertise in BGP, OSPF, STP, VLANs, and trunking. * Implement advanced firewalling and security controls, including segmentation strategies, IDS/IPS, and zero-trust methodologies.
        Position: NSX-T Engineer / Architect - Location: Farnborough - Day Rate: Market Rate - SC Clearance Required - Our defence client is seeking a highly skilled VMware NSX-T Engineer/Architect to play a key role in designing and delivering secure, resilient, and scalable network solutions across mission-critical environments. This is an opportunity to work at the forefront of software-defined networking within a complex, high-security landscape. Key Responsibilities * Lead the design, deployment, and administration of VMware NSX-T, including logical switching, routing, distributed firewalls, and micro- * Architect robust Layer 2/3 network solutions, with deep expertise in BGP, OSPF, STP, VLANs, and trunking. * Implement advanced firewalling and security controls, including segmentation strategies, IDS/IPS, and zero-trust methodologies.
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        FEATURED
        FixMyCar is currently working hard to grow the digitalisation of the UK aftermarket in the Automotive sector, by driving growth for Garages through smarter tools to increase efficiency and meet evolving consumer behaviour. With an exciting mission ahead, we are looking for a proactive Mid-Level NodeJS Engineer to build and evolve scalable backend services using Node.js and TypeScript, working closely across our small team to implement features that truly make an impact to our platform and product. The ideal candidate will love problem-solving, learning new tech, and ensuring high code quality standards at all times. In this hands-on role, they will flourish in an Agile environment and enjoy continuously improving how systems are built, deployed, and scaled. They are a key role in how FixMyCars software applications are developed and maintained. Key Responsibilities
        FixMyCar is currently working hard to grow the digitalisation of the UK aftermarket in the Automotive sector, by driving growth for Garages through smarter tools to increase efficiency and meet evolving consumer behaviour. With an exciting mission ahead, we are looking for a proactive Mid-Level NodeJS Engineer to build and evolve scalable backend services using Node.js and TypeScript, working closely across our small team to implement features that truly make an impact to our platform and product. The ideal candidate will love problem-solving, learning new tech, and ensuring high code quality standards at all times. In this hands-on role, they will flourish in an Agile environment and enjoy continuously improving how systems are built, deployed, and scaled. They are a key role in how FixMyCars software applications are developed and maintained. Key Responsibilities
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        Python Software Engineer GCP FastAPI - Start-up

        Client Server
        West End, Central London (W1), W1U
        £90000 - £100000 per annum + benefits
        Python Software Engineer / Developer (GCP FastAPI) London / WFH to £100k - Opportunity for a skilled Software Engineer with strong backend Python skills to join a well-funded and profitable FinTech start-up. As a Python Software Engineer you'll join a small, talented tech team to deliver new features and enhancements as well as some refactoring work, contributing to the core banking platform which integrates with major players such as HSBC. There's a relatively young codebase and lots of new projects to get stuck into. You'll be collaboratively problem solving in a hands-on role which could progress to Principal Engineer or Team Lead if desired as the company continues to scale. You'll join colleagues in the Central London office with flexibility to work from home twice a week in a hybrid model. * You're an experienced Software Engineer with a strong knowledge of software ...
        Python Software Engineer / Developer (GCP FastAPI) London / WFH to £100k - Opportunity for a skilled Software Engineer with strong backend Python skills to join a well-funded and profitable FinTech start-up. As a Python Software Engineer you'll join a small, talented tech team to deliver new features and enhancements as well as some refactoring work, contributing to the core banking platform which integrates with major players such as HSBC. There's a relatively young codebase and lots of new projects to get stuck into. You'll be collaboratively problem solving in a hands-on role which could progress to Principal Engineer or Team Lead if desired as the company continues to scale. You'll join colleagues in the Central London office with flexibility to work from home twice a week in a hybrid model. * You're an experienced Software Engineer with a strong knowledge of software ...
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        PREMIUM

        Python Developer / Team Lead

        Client Server
        Soho, Central London (W1), W1D
        £90000 - £120000 per annum + benefits
        Are you a skilled Python Developer with team leadership experience? You could be progressing your career at a well-funded and profitable FinTech start-up. As a Python Developer / Team Lead you'll head up a small, talented tech team to deliver new features and enhancements as well as some refactoring work, contributing to the core banking platform which integrates with major players such as HSBC. There's a relatively young codebase and lots of new projects to get stuck into. You'll be collaboratively problem solving in a hands-on role with approximately 50/50 split between architecture / design and people management. You'll set the standards and mentor more junior developers, fostering a culture of continuous improvement and self development. You'll join colleagues in the Central London office with flexibility to work from home twice a week in a hybrid model.
        Are you a skilled Python Developer with team leadership experience? You could be progressing your career at a well-funded and profitable FinTech start-up. As a Python Developer / Team Lead you'll head up a small, talented tech team to deliver new features and enhancements as well as some refactoring work, contributing to the core banking platform which integrates with major players such as HSBC. There's a relatively young codebase and lots of new projects to get stuck into. You'll be collaboratively problem solving in a hands-on role with approximately 50/50 split between architecture / design and people management. You'll set the standards and mentor more junior developers, fostering a culture of continuous improvement and self development. You'll join colleagues in the Central London office with flexibility to work from home twice a week in a hybrid model.
        more
        PREMIUM

        Web GIS Developer

        Stackstudio Digital Ltd.
        Wokingham (RG40)
        From £300 to £340 per day
        Role/Job Title:Web GIS Developer - Work Location:Wokingham - Mode of Working: Onsite - Duration of Assignment:6 months - Role Summary - We are looking for a skilled Web GIS Developer to design, develop, and maintain GIS-based web applications and services. The candidate will work closely with project teams to build spatial solutions using ESRI technologies, integrate GIS components with enterprise systems, and support geospatial data management and visualization needs. This role requires strong hands on experience in GIS development, spatial databases, web technologies, and ArcGIS Enterprise components. Key Responsibilities - Develop and maintain GIS-based web applications using ESRI technologies. Build and configure applications using ArcGIS Enterprise components such as ArcGIS Portal, ArcGIS Server, and Data Store.
        Role/Job Title:Web GIS Developer - Work Location:Wokingham - Mode of Working: Onsite - Duration of Assignment:6 months - Role Summary - We are looking for a skilled Web GIS Developer to design, develop, and maintain GIS-based web applications and services. The candidate will work closely with project teams to build spatial solutions using ESRI technologies, integrate GIS components with enterprise systems, and support geospatial data management and visualization needs. This role requires strong hands on experience in GIS development, spatial databases, web technologies, and ArcGIS Enterprise components. Key Responsibilities - Develop and maintain GIS-based web applications using ESRI technologies. Build and configure applications using ArcGIS Enterprise components such as ArcGIS Portal, ArcGIS Server, and Data Store.
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        Salesforce Technical Lead

        Stackstudio Digital Ltd.
        Wokingham (RG40)
        From £470 to £500 per day
        Role Details * Role/Job Title: Salesforce Technical Lead * Work Location: Wokingham/Warwick * Hybrid Requirement: 3 days * Duration of Assignment: 6 months * Other Working Conditions: Work from Office for 3 days must - The Role - Seeking a highly skilled Salesforce Technical Lead to lead the design, development, and delivery of Salesforce solutions. The ideal candidate will have strong hands-on expertise in Salesforce development, proven experience in leading technical teams, and the ability to translate business requirements into robust, scalable technical solutions. Your Responsibilities - Development & Customization * Lead the design, development, and delivery of Salesforce technical solutions * Perform hands-on development using Apex, Lightning Web Components (LWC), Visualforce, and Salesforce Flows * Design and implement customized solutions across Sales Cloud, Service Cloud, and ...
        Role Details * Role/Job Title: Salesforce Technical Lead * Work Location: Wokingham/Warwick * Hybrid Requirement: 3 days * Duration of Assignment: 6 months * Other Working Conditions: Work from Office for 3 days must - The Role - Seeking a highly skilled Salesforce Technical Lead to lead the design, development, and delivery of Salesforce solutions. The ideal candidate will have strong hands-on expertise in Salesforce development, proven experience in leading technical teams, and the ability to translate business requirements into robust, scalable technical solutions. Your Responsibilities - Development & Customization * Lead the design, development, and delivery of Salesforce technical solutions * Perform hands-on development using Apex, Lightning Web Components (LWC), Visualforce, and Salesforce Flows * Design and implement customized solutions across Sales Cloud, Service Cloud, and ...
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        Salesforce Solution Architect

        Stackstudio Digital Ltd.
        Wokingham (RG40)
        From £500 to £525 per day
        Role Details * Role/Job Title: Salesforce Solution Architect * Work Location: Warwick/Wokingham * Mode of Working: Hybrid * Hybrid Requirement: 3 days * Duration of Assignment: 6 months - The Role - Seeking a highly skilled Salesforce Architect with deep expertise in enterprise-scale Salesforce architecture, complex integrations, and large digital transformation programs. The Salesforce Architect will be responsible for defining end-to-end solution architecture, guiding delivery teams, and partnering with senior business and IT stakeholders to deliver scalable, secure, and business-aligned Salesforce solutions. This role requires strong technical depth, architectural vision, hands-on guidance, and excellent communication and leadership skills. Your Responsibilities - Architecture & Technical Leadership * Define and own the end-to-end Salesforce architecture across enterprise programs
        Role Details * Role/Job Title: Salesforce Solution Architect * Work Location: Warwick/Wokingham * Mode of Working: Hybrid * Hybrid Requirement: 3 days * Duration of Assignment: 6 months - The Role - Seeking a highly skilled Salesforce Architect with deep expertise in enterprise-scale Salesforce architecture, complex integrations, and large digital transformation programs. The Salesforce Architect will be responsible for defining end-to-end solution architecture, guiding delivery teams, and partnering with senior business and IT stakeholders to deliver scalable, secure, and business-aligned Salesforce solutions. This role requires strong technical depth, architectural vision, hands-on guidance, and excellent communication and leadership skills. Your Responsibilities - Architecture & Technical Leadership * Define and own the end-to-end Salesforce architecture across enterprise programs
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        Interim Power Platform Consultant

        Resourgenix Ltd
        Englefield Green, Egham (TW20), TW20 0EX
        From £461 to £461 per day
        Working as part of a small technical team and reporting to the Head of Digital Design and Delivery, this role is responsible for the design and implementation of solutions to provide operational efficiency using the Microsoft Power Platform. The role will support the needs of Professional Services and student-facing teams across the University by delivering practical, value-driven automation that enhances operational efficiency, service quality and user experience. The role will work closely with business stakeholders to co-design Power Platform based solutions, define requirements, and translate these into robust, scalable implementations. This includes building workflows using Power Automate and integrating with other APIs or Microsoft tools to meet specific operational challenges across various professional services teams.
        Working as part of a small technical team and reporting to the Head of Digital Design and Delivery, this role is responsible for the design and implementation of solutions to provide operational efficiency using the Microsoft Power Platform. The role will support the needs of Professional Services and student-facing teams across the University by delivering practical, value-driven automation that enhances operational efficiency, service quality and user experience. The role will work closely with business stakeholders to co-design Power Platform based solutions, define requirements, and translate these into robust, scalable implementations. This includes building workflows using Power Automate and integrating with other APIs or Microsoft tools to meet specific operational challenges across various professional services teams.
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        Power Platform Developer

        Informed Recruitment Limited
        Hemel Hempstead (HP1)
        £50000 - £55000 per annum
        Are you a talented Power Platform Developer? Do you want to work for an emerging, cutting-edge consultancy providing digital transformation solutions and offering you autonomy and opportunity for growth? If this describes you, then let Informed Recruitment help you achieve your potential with an exciting Development opportunity. As a specialist provider of resources to the Property & Associated Technology markets, we are partnering with a niche, cutting edge, and award-winning digital consultancy developing bespoke solutions for customers within the Property Services, Facilities Management and Real Estate marketplaces. The purpose of the role will be to work within an agile framework to develop, test, support, and maintain bespoke Power Platform and Microsoft Dynamics applications for customers.
        Are you a talented Power Platform Developer? Do you want to work for an emerging, cutting-edge consultancy providing digital transformation solutions and offering you autonomy and opportunity for growth? If this describes you, then let Informed Recruitment help you achieve your potential with an exciting Development opportunity. As a specialist provider of resources to the Property & Associated Technology markets, we are partnering with a niche, cutting edge, and award-winning digital consultancy developing bespoke solutions for customers within the Property Services, Facilities Management and Real Estate marketplaces. The purpose of the role will be to work within an agile framework to develop, test, support, and maintain bespoke Power Platform and Microsoft Dynamics applications for customers.
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        Software Engineer .NET

        Total Recruitment Group
        West London (W2)
        Up to £570 per day
        .NET Contract |Outside IR35 |£570/day | London | Hybrid (3 days in the office)| 12-months - We're working with one of the fast-scaling fintechs building innovative payments and financial services technology. With serious investment behind them and a growing engineering team. The Roles (x4) * Customer Onboarding (x2) Architecture-heavy squad rebuilding the critical customer onboarding journey into a clean, modular orchestration layer. * Incentive Engineering Internally-facing, revenue-critical team building the commission and invoicing systems that power the sales operations, with a AI/ML exposure a strong plus (Vertex AI, React, .NET, GCP). * Risk Experience High-integrity domain building a centralised risk and underwriting engine. What I'm Looking For * Strong commercial experience with .NET / C# * Fintech or payments background required
        .NET Contract |Outside IR35 |£570/day | London | Hybrid (3 days in the office)| 12-months - We're working with one of the fast-scaling fintechs building innovative payments and financial services technology. With serious investment behind them and a growing engineering team. The Roles (x4) * Customer Onboarding (x2) Architecture-heavy squad rebuilding the critical customer onboarding journey into a clean, modular orchestration layer. * Incentive Engineering Internally-facing, revenue-critical team building the commission and invoicing systems that power the sales operations, with a AI/ML exposure a strong plus (Vertex AI, React, .NET, GCP). * Risk Experience High-integrity domain building a centralised risk and underwriting engine. What I'm Looking For * Strong commercial experience with .NET / C# * Fintech or payments background required
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        Frequently Asked Questions

        How many contract API jobs are there in Slough?
        There are 43 contract API jobs within 20 miles of Slough available on CWJobs right now.

        What other similar jobs are there to contract API jobs in Slough?
        As well as contract API jobs in Slough, you can find contract IT, Software Development, Architecture, amongst many others.