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        27 Permanent API jobs in Slough + 20 miles

        Senior Solutions Architect

        The Talent Ladder
        St James, South West London (SW1), SW1A
        Up to £125,000 per annum Bonus and travel allowance
        API design & microservices architecture
        API design & microservices architecture
        PREMIUM

        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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        Experience withAzure (APIM, Azure Functions, API Services), React/React-Native and.NET Core - Proficiency in at least one major API testing framework - Experience with API testing (REST, Postman)
        Experience withAzure (APIM, Azure Functions, API Services), React/React-Native and.NET Core - Proficiency in at least one major API testing framework - Experience with API testing (REST, Postman)
        more
        TJX Companies - At TJX Companies, every day brings new opportunities for growth, exploration, and achievement. You'll be part of our vibrant team that embraces diversity, fosters collaboration, and prioritizes your development. Whether you're working in our four global Home Offices, Distribution Centers or Retail Stores-TJ Maxx, Marshalls, Homegoods, Homesense, Sierra, Winners, and TK Maxx, you'll find abundant opportunities to learn, thrive, and make an impact. Come join our TJX family-a Fortune 100 company and the world's leading off-price retailer. Wh o we are - The Enterprise Architecture team at TJX drives technology strategy , innovation, and governance across multiple technical domains to ensure all technology decisions align with business goals and enterprise standards. We are seeking a Senior Enterprise Architect with d eep ServiceNow experience to lead the design, ...
        TJX Companies - At TJX Companies, every day brings new opportunities for growth, exploration, and achievement. You'll be part of our vibrant team that embraces diversity, fosters collaboration, and prioritizes your development. Whether you're working in our four global Home Offices, Distribution Centers or Retail Stores-TJ Maxx, Marshalls, Homegoods, Homesense, Sierra, Winners, and TK Maxx, you'll find abundant opportunities to learn, thrive, and make an impact. Come join our TJX family-a Fortune 100 company and the world's leading off-price retailer. Wh o we are - The Enterprise Architecture team at TJX drives technology strategy , innovation, and governance across multiple technical domains to ensure all technology decisions align with business goals and enterprise standards. We are seeking a Senior Enterprise Architect with d eep ServiceNow experience to lead the design, ...
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        Senior DevOps Engineer (DSA BAU)

        Capita Shared Services Limited
        West London (W2), W2
        £50k - 60k per year
        Salesforce Deployments: Lead release management activities for Salesforce, including metadata management, environment synchronization, and sandbox refreshes. (SFDX/Metadata API, packaging, org-to-org promotion), ensuring consistent pipelines across SIT, UAT, Pre-Prod and Prod.
        Salesforce Deployments: Lead release management activities for Salesforce, including metadata management, environment synchronization, and sandbox refreshes. (SFDX/Metadata API, packaging, org-to-org promotion), ensuring consistent pipelines across SIT, UAT, Pre-Prod and Prod.
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        NEW

        MuleSoft Architect

        Capita Shared Services Limited
        West London (W2), W2
        £90k - 100k per year
        Capita's MuleSoft Centre for Enablement & Excellence (C4EE) is expanding its architectural capability to support large-scale integration and API transformation programmes for major UK Government and private-sector clients. As a MuleSoft Architect, you will translate business needs into scalable API-led architectures, ensuring technical excellence, security, and alignment to Capita's enterprise design principles. * Lead the architecture and design of API-led solutions across System, Process, and Experience layers. * Produce HLDs, LLDs, sequence diagrams, API specifications, and integration design artefacts. * Define reusable API patterns, standards, and frameworks aligned to C4EE governance. * API specifications and sequence diagrams * Strong understanding of API governance, IAM, OAuth, TLS, token management, and policy enforcement
        Capita's MuleSoft Centre for Enablement & Excellence (C4EE) is expanding its architectural capability to support large-scale integration and API transformation programmes for major UK Government and private-sector clients. As a MuleSoft Architect, you will translate business needs into scalable API-led architectures, ensuring technical excellence, security, and alignment to Capita's enterprise design principles. * Lead the architecture and design of API-led solutions across System, Process, and Experience layers. * Produce HLDs, LLDs, sequence diagrams, API specifications, and integration design artefacts. * Define reusable API patterns, standards, and frameworks aligned to C4EE governance. * API specifications and sequence diagrams * Strong understanding of API governance, IAM, OAuth, TLS, token management, and policy enforcement
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        NEW

        Full Stack Engineer

        Halian Technology Limited
        Reading (RG1)
        Up to £100,000 per annum
        Were seeking a talented Full Stack Engineer to help build and scale innovative web applications. If you enjoy working across the full stack and delivering high-performance solutions, this is your opportunity to make a real impact. Location: Reading (2 days a week) * Modern, responsive web applications using React & TypeScript. * Sleek UIs with Tailwind CSS and cutting-edge frontend architecture. * Backend services with Ruby on Rails (essential) or Node.js, integrated via RESTful APIs. * Robust data solutions with PostgreSQL or similar databases. * Scalable deployment pipelines on cloud platforms with full CI/CD workflows. * Automated testing across frontend and backend to ensure reliability and performance. * Optimized client-side performance for smooth user experiences. * Strong commercial experience with React & TypeScript. * Deep expertise in Ruby on Rails (essential).
        Were seeking a talented Full Stack Engineer to help build and scale innovative web applications. If you enjoy working across the full stack and delivering high-performance solutions, this is your opportunity to make a real impact. Location: Reading (2 days a week) * Modern, responsive web applications using React & TypeScript. * Sleek UIs with Tailwind CSS and cutting-edge frontend architecture. * Backend services with Ruby on Rails (essential) or Node.js, integrated via RESTful APIs. * Robust data solutions with PostgreSQL or similar databases. * Scalable deployment pipelines on cloud platforms with full CI/CD workflows. * Automated testing across frontend and backend to ensure reliability and performance. * Optimized client-side performance for smooth user experiences. * Strong commercial experience with React & TypeScript. * Deep expertise in Ruby on Rails (essential).
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        Senior AI Developer

        Point of Rental
        Southern Hill, Reading (RG2), RG2 0TD
        Unspecified
        At Point of Rental Software, we revolutionize the rental industry by providing cutting-edge, comprehensive software solutions tailored to our customers' needs. Our software suite streamlines operations, enhances customer experiences, and maximizes profitability for global rental businesses of all sizes. We are looking for a talented Senior AI Engineer to join our growing UK team. Joining our team means becoming part of a dynamic and diverse team who thrive in a fantastic office culture. Our modern offices near Reading offer great transport links and free parking. Inside, you'll find a lively atmosphere with amenities like a pool table, dart board, and gaming systems to help you unwind. You will help us achieve our ultimate goal: to become the premier global rental/hire technology company. The ideal person will be pro-active, able to work on their own and within a successful ...
        At Point of Rental Software, we revolutionize the rental industry by providing cutting-edge, comprehensive software solutions tailored to our customers' needs. Our software suite streamlines operations, enhances customer experiences, and maximizes profitability for global rental businesses of all sizes. We are looking for a talented Senior AI Engineer to join our growing UK team. Joining our team means becoming part of a dynamic and diverse team who thrive in a fantastic office culture. Our modern offices near Reading offer great transport links and free parking. Inside, you'll find a lively atmosphere with amenities like a pool table, dart board, and gaming systems to help you unwind. You will help us achieve our ultimate goal: to become the premier global rental/hire technology company. The ideal person will be pro-active, able to work on their own and within a successful ...
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        NEW
        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

        TMS Implementation Analyst

        Goodman Masson
        Piccadilly, Central London (W1), W1J
        Market related
        Treasury Systems Analyst / Business Analyst – Fintech (AI) London (Hybrid) A fintech firm is building out its UK delivery capability and is looking to hire a Treasury Analyst / Business Analyst to sit at the intersection of treasury, technology, and AI driven transformation. This role offers the opportunity to work directly with enterprise finance and treasury teams, helping them redesign how their functions operate through intelligent automation and modern treasury infrastructure. You will support the end-to-end delivery of client implementations from initial onboarding through to go-live and adoption. Working closely with treasury, finance, and operations teams, you will analyse current-state processes and help design and deploy future-state solutions powered by automation and AI. This includes everything from connectivity with banks and ERPs through to identifying where ...
        Treasury Systems Analyst / Business Analyst – Fintech (AI) London (Hybrid) A fintech firm is building out its UK delivery capability and is looking to hire a Treasury Analyst / Business Analyst to sit at the intersection of treasury, technology, and AI driven transformation. This role offers the opportunity to work directly with enterprise finance and treasury teams, helping them redesign how their functions operate through intelligent automation and modern treasury infrastructure. You will support the end-to-end delivery of client implementations from initial onboarding through to go-live and adoption. Working closely with treasury, finance, and operations teams, you will analyse current-state processes and help design and deploy future-state solutions powered by automation and AI. This includes everything from connectivity with banks and ERPs through to identifying where ...
        more

        Junior Developer

        Cobalt Recruitment.
        Leatherhead, Surrey
        £30000.00 - £40000.00 per annum + + Bonus
        This is a hands-on, commercially focused role for a pragmatic builder who wants to improve how a property management business operates. Working closely with operations and finance teams, you will develop a strong understanding of how processes function in practice, identify inefficiencies, and implement technical solutions that reduce manual work and increase data visibility. The role sits at the intersection of business and technology. Rather than focusing on large-scale consumer applications, the emphasis is on automation, integrations, reporting tools, and internal systems that directly enhance operational performance. Role Overview * Analyse and map business processes across property management and finance functions * Write Python scripts to automate repetitive administrative tasks * Build lightweight internal tools for reporting, tracking, and workflow management
        This is a hands-on, commercially focused role for a pragmatic builder who wants to improve how a property management business operates. Working closely with operations and finance teams, you will develop a strong understanding of how processes function in practice, identify inefficiencies, and implement technical solutions that reduce manual work and increase data visibility. The role sits at the intersection of business and technology. Rather than focusing on large-scale consumer applications, the emphasis is on automation, integrations, reporting tools, and internal systems that directly enhance operational performance. Role Overview * Analyse and map business processes across property management and finance functions * Write Python scripts to automate repetitive administrative tasks * Build lightweight internal tools for reporting, tracking, and workflow management
        more

        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
        more
        Our client, a leader in the technology sector, is currently seeking a Senior SAP UI5/ABAP Developer to join their team on a permanent basis. This role provides an exciting opportunity to work with cutting-edge SAP technologies in a dynamic and agile environment. * Develop and enhance SAP applications using SAP ABAP OO and traditional SAP ABAP * Implement change management processes including transports and source code control with abapGit * Utilise ABAP OOP for user exits and enhancements * Perform dialog programming and report writing with ALV and ABAP lists * Implement complex integrations via OData services and REST APIs * Contribute to SAP UI5 development including controls, data binding, ODataModel, and JSONModel * Develop unit tests using ABAP Unit ensuring high-quality software delivery * Participate actively in Agile practices and ceremonies
        Our client, a leader in the technology sector, is currently seeking a Senior SAP UI5/ABAP Developer to join their team on a permanent basis. This role provides an exciting opportunity to work with cutting-edge SAP technologies in a dynamic and agile environment. * Develop and enhance SAP applications using SAP ABAP OO and traditional SAP ABAP * Implement change management processes including transports and source code control with abapGit * Utilise ABAP OOP for user exits and enhancements * Perform dialog programming and report writing with ALV and ABAP lists * Implement complex integrations via OData services and REST APIs * Contribute to SAP UI5 development including controls, data binding, ODataModel, and JSONModel * Develop unit tests using ABAP Unit ensuring high-quality software delivery * Participate actively in Agile practices and ceremonies
        more
        Job Title: Retailer Systems Project Consultant - Location: Hybrid, 2 days in the office (Farnborough) Salary: Competitive + Performance Bonus - Job type: Full time, Permanent - Working Hours: 40 Hours Per Week - Application Deadline: 3rd April 2026 - The Retailer Systems Project Consultant is responsible for supporting, coordinating, and delivering sales and CRM projects within our client's Network Digitalisation department. These projects will primarily focus on providing state of the art systems for the wider Retailer Network. This role ensures that initiatives are completed on time, within budget, and to the desired quality standards, whilst aligning with strategic business objectives. The Project Consultant will be actively involved in the planning, testing, execution and deployment of new retailer systems, upgrades, and technology rollouts, working collaboratively with ...
        Job Title: Retailer Systems Project Consultant - Location: Hybrid, 2 days in the office (Farnborough) Salary: Competitive + Performance Bonus - Job type: Full time, Permanent - Working Hours: 40 Hours Per Week - Application Deadline: 3rd April 2026 - The Retailer Systems Project Consultant is responsible for supporting, coordinating, and delivering sales and CRM projects within our client's Network Digitalisation department. These projects will primarily focus on providing state of the art systems for the wider Retailer Network. This role ensures that initiatives are completed on time, within budget, and to the desired quality standards, whilst aligning with strategic business objectives. The Project Consultant will be actively involved in the planning, testing, execution and deployment of new retailer systems, upgrades, and technology rollouts, working collaboratively with ...
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        PREMIUM

        IT Development Team Lead (Full Stack)

        Euro Car Parks
        Central London (W1)
        £100,000 per annum plus commission
        5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API * Experience developing REST API-driven mobile first web applications
        5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API * Experience developing REST API-driven mobile first web applications
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        Strong Azure cloud and CI/CD experience, with a particular focus on Azure DevOps (YAML pipelines, environments variable groups), Azure Key Vault, Azure API Management and Azure Managed Identity
        Strong Azure cloud and CI/CD experience, with a particular focus on Azure DevOps (YAML pipelines, environments variable groups), Azure Key Vault, Azure API Management and Azure Managed Identity
        more
        You'll be involved in API design, PostgreSQL performance optimisation, frontend state management, CI/CD pipelines, and cloud infrastructure, while collaborating closely with Product, Data, and commercial stakeholders.
        You'll be involved in API design, PostgreSQL performance optimisation, frontend state management, CI/CD pipelines, and cloud infrastructure, while collaborating closely with Product, Data, and commercial stakeholders.
        more

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        Frequently Asked Questions

        How many permanent API jobs are there in Slough?
        There are 27 permanent API jobs within 20 miles of Slough available on CWJobs right now.

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