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        27 Contract API jobs in Windsor + 20 miles

        Senior Java Developer – AWS Cloud Backend

        Intelligent Talent Solutions Ltd
        Bracknell (RG12)
        From £75,000 to £90,000 per annum Pension, staff discounts, medical
        Experience building platforms supporting mobile or API-driven products
        Experience building platforms supporting mobile or API-driven products
        Assist with API integration and monitoring using API Management platforms. * Understanding of WAF and API security basics.
        Assist with API integration and monitoring using API Management platforms. * Understanding of WAF and API security basics.
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        FEATURED

        Full Stack Engineer JavaScript

        Staffworx Limited
        West London (W10)
        market rates, outside IR35, 6 months initial, long term extensions
        Design & develop GraphQL API services from schema, supergraph, subgraph design to production integration, ensuring performance, flexibility, and maintainability. * Collaborate in Agile teams, driving API strategy, reviewing pull requests, and improving delivery processes. * Familiarity with testing frameworks (Vitest, Playwright) for both API and end-to-end testing.
        Design & develop GraphQL API services from schema, supergraph, subgraph design to production integration, ensuring performance, flexibility, and maintainability. * Collaborate in Agile teams, driving API strategy, reviewing pull requests, and improving delivery processes. * Familiarity with testing frameworks (Vitest, Playwright) for both API and end-to-end testing.
        more
        Experience with API management platforms (Apigee, Kong, OpenShift API Management) and Web Application Firewalls (WAF) is highly desirable. * Implement and manage API Management solutions and Web Application Firewalls (WAF). * Experience with API management (Apigee, Kong, OpenShift API Management) and API lifecycle.
        Experience with API management platforms (Apigee, Kong, OpenShift API Management) and Web Application Firewalls (WAF) is highly desirable. * Implement and manage API Management solutions and Web Application Firewalls (WAF). * Experience with API management (Apigee, Kong, OpenShift API Management) and API lifecycle.
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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
        Agility core practices, Agility core practices, API and platform design, Cloud Platforms, Collaboration, Communication, Configuration management and release, Continuous deployment and release, Creating a high performing team, Database Design, Digital Project Management, Documentation and knowledge sharing, Emerging technology monitoring, Facilitation, Information Security, Mentoring, Metrics definition and instrumentation, NoSql data modelling, Problem Solving, Relational Data Modelling, Risk Management, Scripting, Secure development, Service operations and resiliency, Software Design and Development {+ 7 more}
        Agility core practices, Agility core practices, API and platform design, Cloud Platforms, Collaboration, Communication, Configuration management and release, Continuous deployment and release, Creating a high performing team, Database Design, Digital Project Management, Documentation and knowledge sharing, Emerging technology monitoring, Facilitation, Information Security, Mentoring, Metrics definition and instrumentation, NoSql data modelling, Problem Solving, Relational Data Modelling, Risk Management, Scripting, Secure development, Service operations and resiliency, Software Design and Development {+ 7 more}
        more

        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.
        more
        FEATURED

        Python Developer

        Stackstudio Digital Ltd.
        Wokingham (RG40)
        From £300 to £340 per day
        Role Details - Role / Job Title:Python Developer - Work Location:Wokingham, UK - Mode of Working:Office - The Role - We are seeking an experienced Python Developer with strong expertise in algorithm development, optimization modelling, and power system techno-economic assessment. The ideal candidate will have deep knowledge of Python's core features, data analysis, web frameworks, and modern development practices. Experience with mathematical optimization tools, containerization, and message-queue technologies will be considered a significant advantage. Your Responsibilities - Python Development & Software Engineering - Develop, optimize, and maintain software using core Python features including iterators/generators, exception handling, file handling, type hints, OOP, and data structure design. Build scalable algorithms and write clean, maintainable, and well-structured code.
        Role Details - Role / Job Title:Python Developer - Work Location:Wokingham, UK - Mode of Working:Office - The Role - We are seeking an experienced Python Developer with strong expertise in algorithm development, optimization modelling, and power system techno-economic assessment. The ideal candidate will have deep knowledge of Python's core features, data analysis, web frameworks, and modern development practices. Experience with mathematical optimization tools, containerization, and message-queue technologies will be considered a significant advantage. Your Responsibilities - Python Development & Software Engineering - Develop, optimize, and maintain software using core Python features including iterators/generators, exception handling, file handling, type hints, OOP, and data structure design. Build scalable algorithms and write clean, maintainable, and well-structured code.
        more

        Python Developer

        Infoplus Technologies UK Ltd
        Wokingham, Berkshire
        From £320 to £380 per day
        The Role - We are seeking an experienced Python Developer with strong expertise in algorithm development, optimization modelling, and power system techno-economic assessment. The ideal candidate will have deep knowledge of Pythons core features, data analysis, web frameworks, and modern development practices. Experience with mathematical optimization tools, containerization, and message-queue technologies will be considered a significant advantage. Work from Office - Python Development & Software Engineering - Develop, optimize, and maintain software using core Python features including iterators/generators, exception handling, file handling, type hints, OOP, and data structure design. Build scalable algorithms and write clean, maintainable, and well-structured code. Develop and maintain RESTful APIs using OpenAPI/Swagger, Connexion, or FastAPI.
        The Role - We are seeking an experienced Python Developer with strong expertise in algorithm development, optimization modelling, and power system techno-economic assessment. The ideal candidate will have deep knowledge of Pythons core features, data analysis, web frameworks, and modern development practices. Experience with mathematical optimization tools, containerization, and message-queue technologies will be considered a significant advantage. Work from Office - Python Development & Software Engineering - Develop, optimize, and maintain software using core Python features including iterators/generators, exception handling, file handling, type hints, OOP, and data structure design. Build scalable algorithms and write clean, maintainable, and well-structured code. Develop and maintain RESTful APIs using OpenAPI/Swagger, Connexion, or FastAPI.
        more

        QA Engineer – Mobile Apps / Test Automation

        Intelligent Talent Solutions Ltd
        Bracknell (RG12)
        From £55,000 to £75,000 per annum Pension, staff discounts, medical
        QA Engineer Mobile Apps & Automation - Hybrid Working 3 Days Office | Bracknell Area - Are you passionate about building high-quality mobile applications that genuinely improve peoples health and wellbeing? Were partnering with an innovative medical technology company developing digital products and connected mobile applications used by customers worldwide. Theyre looking for a Quality Engineer with strong mobile testing and automation experience to help ensure their digital health platforms remain reliable, secure and safe for real-world use. Youll play a key role testing iOS and Android applications, cloud APIs and backend services, ensuring new releases meet the highest quality and regulatory standards. The Opportunity - Working closely with software engineers, business analysts, product teams and regulatory specialists, youll be responsible for ensuring mobile and cloud ...
        QA Engineer Mobile Apps & Automation - Hybrid Working 3 Days Office | Bracknell Area - Are you passionate about building high-quality mobile applications that genuinely improve peoples health and wellbeing? Were partnering with an innovative medical technology company developing digital products and connected mobile applications used by customers worldwide. Theyre looking for a Quality Engineer with strong mobile testing and automation experience to help ensure their digital health platforms remain reliable, secure and safe for real-world use. Youll play a key role testing iOS and Android applications, cloud APIs and backend services, ensuring new releases meet the highest quality and regulatory standards. The Opportunity - Working closely with software engineers, business analysts, product teams and regulatory specialists, youll be responsible for ensuring mobile and cloud ...
        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
        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
        We are proud of our market leading integrations estate, and our Open API capabilities, and continue to build on these with our * Open API for customers, ecosystem partners and Advice firms * Propose and lead on business and partnership models (license, tiered API, embedded UX, or per-event pricing)
        We are proud of our market leading integrations estate, and our Open API capabilities, and continue to build on these with our * Open API for customers, ecosystem partners and Advice firms * Propose and lead on business and partnership models (license, tiered API, embedded UX, or per-event pricing)
        more
        Design, build and govern marketing data foundation tagging, tracking, pipelines and modelling to create a single source of truth across brand direct, paid, social and CRM. Enable faster, better decisions with accurate data, integrated views (GA4, Salesforce, Databricks, COGNOS) and insight products (dashboards, attribution/MMM). Be the primary point of contact for all tracking and data issues ensuring reliability, compliance and speed. Own tagging and tracking standards for web/app (GTM, GA4, CM360/Floodlight, Meta pixel/event manager, consent mode) Define and maintain the marketing KPI dictionary and data model; steward the single source of truth - Define data pipelines between martech platforms and enterprise solutions (Salesforce, COGNOS, Databricks) Set QA/alerting SLAs, prioritise analytics backlog
        Design, build and govern marketing data foundation tagging, tracking, pipelines and modelling to create a single source of truth across brand direct, paid, social and CRM. Enable faster, better decisions with accurate data, integrated views (GA4, Salesforce, Databricks, COGNOS) and insight products (dashboards, attribution/MMM). Be the primary point of contact for all tracking and data issues ensuring reliability, compliance and speed. Own tagging and tracking standards for web/app (GTM, GA4, CM360/Floodlight, Meta pixel/event manager, consent mode) Define and maintain the marketing KPI dictionary and data model; steward the single source of truth - Define data pipelines between martech platforms and enterprise solutions (Salesforce, COGNOS, Databricks) Set QA/alerting SLAs, prioritise analytics backlog
        more
        Location: Reading, UK - Publish Date: 11/12 /2025 - If you apply, please include your CV. Overview - CHAMP Cargosystems provides the most comprehensive range of integrated IT solutions and distribution services for the air cargo transport chain. Our portfolio spans core management systems, messaging services, and eCargo solutions. These include applications designed to meet customs and security requirements, quality optimization, as well as e-freight and mobility needs. Our products and services are recognized globally under the Cargospot and Traxon brands. We serve over 200 airlines and GSAs, connecting them with approximately 3,000 forwarders and GHAs worldwide. Our solutions help customers, and their clients, adapt to the critical and ongoing changes in air transport logistics and meet the demands of global trade.
        Location: Reading, UK - Publish Date: 11/12 /2025 - If you apply, please include your CV. Overview - CHAMP Cargosystems provides the most comprehensive range of integrated IT solutions and distribution services for the air cargo transport chain. Our portfolio spans core management systems, messaging services, and eCargo solutions. These include applications designed to meet customs and security requirements, quality optimization, as well as e-freight and mobility needs. Our products and services are recognized globally under the Cargospot and Traxon brands. We serve over 200 airlines and GSAs, connecting them with approximately 3,000 forwarders and GHAs worldwide. Our solutions help customers, and their clients, adapt to the critical and ongoing changes in air transport logistics and meet the demands of global trade.
        more

        ERP Developer

        Bremont Watch Company Limited
        Henley-On-Thames, Oxfordshire
        Competitive
        This role is focused on the development, optimisation, and ongoing enhancement of our Priority ERP system. As a key member of the Business Systems team, you will take ownership of ERP-related projects and deliver solutions that improve business processes, data integrity, and operational efficiency. Working closely with Business Systems, Finance, Operations, Supply Chain, and other departments, you will be responsible for designing, developing, testing, and maintaining customisations, reports, workflows, and integrations within Priority ERP to support business growth and continuous improvement. * Design, develop, and implement enhancements within the Priority ERP system - o Form Triggers - o Procedures - o Reports - o Documents (HTML and Word formats) o Form Interfaces - o Additional fields within tables and forms
        This role is focused on the development, optimisation, and ongoing enhancement of our Priority ERP system. As a key member of the Business Systems team, you will take ownership of ERP-related projects and deliver solutions that improve business processes, data integrity, and operational efficiency. Working closely with Business Systems, Finance, Operations, Supply Chain, and other departments, you will be responsible for designing, developing, testing, and maintaining customisations, reports, workflows, and integrations within Priority ERP to support business growth and continuous improvement. * Design, develop, and implement enhancements within the Priority ERP system - o Form Triggers - o Procedures - o Reports - o Documents (HTML and Word formats) o Form Interfaces - o Additional fields within tables and forms
        more

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        Frequently Asked Questions

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

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