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        26 Permanent API jobs in Windsor + 20 miles

        229 exact matches jobs are outside your preferred location

        Senior Software Engineer - Ruby on Rails (f/m/d)

        Contentful
        London
        Competitive
        About the Opportunity - Join Contentful as a Senior Software Engineer and take a central role in enhancing our Identity and Access Management (IAM) capabilities. Our platform serves billions of requests daily, with customers trusting us with their contentmaking scalability and security equally crucial. We seek engineers passionate about building an IAM platform that delivers a seamless experience for both internal and external users. Become a part of the innovative team at Contentful, where we empower thousands of customers to manage content at scale. We're looking for someone who is passionate about building innovative solutions, optimizing processes, and improving scalability while balancing strategic thinking with effective problem-solving. What to expect? * Collaborate and Innovate: Partner with product managers, designers, and engineers to develop industry-leadin
        About the Opportunity - Join Contentful as a Senior Software Engineer and take a central role in enhancing our Identity and Access Management (IAM) capabilities. Our platform serves billions of requests daily, with customers trusting us with their contentmaking scalability and security equally crucial. We seek engineers passionate about building an IAM platform that delivers a seamless experience for both internal and external users. Become a part of the innovative team at Contentful, where we empower thousands of customers to manage content at scale. We're looking for someone who is passionate about building innovative solutions, optimizing processes, and improving scalability while balancing strategic thinking with effective problem-solving. What to expect? * Collaborate and Innovate: Partner with product managers, designers, and engineers to develop industry-leadin
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        Our Guiding Stars are the values at the heart of our organization that drive everything we do. We are committed to creating meaningful change not only in our industry but also in the communities we engage with. If our Guiding Stars resonate with you, we encourage you to consider joining our team. * Drive Results: We think big, work smart, and execute fast to transform the future of commerce * Cultivate Belonging: We welcome diverse backgrounds and experiences, driving positive change through inclusion and teamwork * Champion Customers: We go the extra mile for our customers to help them unlock their full potential * Adapt Boldly: Were curious and innovative, we take risks and grow from our failures - commercetoolers located within a commutable distance (60km or less) to our London office work in a hybrid work environment with three days a week in our local office.
        Our Guiding Stars are the values at the heart of our organization that drive everything we do. We are committed to creating meaningful change not only in our industry but also in the communities we engage with. If our Guiding Stars resonate with you, we encourage you to consider joining our team. * Drive Results: We think big, work smart, and execute fast to transform the future of commerce * Cultivate Belonging: We welcome diverse backgrounds and experiences, driving positive change through inclusion and teamwork * Champion Customers: We go the extra mile for our customers to help them unlock their full potential * Adapt Boldly: Were curious and innovative, we take risks and grow from our failures - commercetoolers located within a commutable distance (60km or less) to our London office work in a hybrid work environment with three days a week in our local office.
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        Ebury is a global fintech firm dedicated to empowering businesses to expand internationally through tailored and forward-thinking financial solutions. Since our founding in 2009, we've grown to a diverse team of over 1,700 professionals across 40+ offices and 29+ markets worldwide. Joining Ebury means becoming part of a collaborative and innovative environment where your contributions are valued. You'll play a key role in shaping the future of cross-border finance, while advancing your own career in a dynamic, high-growth industry. Product - Ebury London Office - Hybrid: 4 days in the office, 1 day working from home per week - We are hiring a Product Manager to join our Compliance Operations product team, with a focus on improving and scaling the client journeys that sit at the heart of our risk and regulatory operations.
        Ebury is a global fintech firm dedicated to empowering businesses to expand internationally through tailored and forward-thinking financial solutions. Since our founding in 2009, we've grown to a diverse team of over 1,700 professionals across 40+ offices and 29+ markets worldwide. Joining Ebury means becoming part of a collaborative and innovative environment where your contributions are valued. You'll play a key role in shaping the future of cross-border finance, while advancing your own career in a dynamic, high-growth industry. Product - Ebury London Office - Hybrid: 4 days in the office, 1 day working from home per week - We are hiring a Product Manager to join our Compliance Operations product team, with a focus on improving and scaling the client journeys that sit at the heart of our risk and regulatory operations.
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        Cognism is the leading provider of European B2B data and sales intelligence. Ambitious businesses of every size use our platform to discover, connect, and engage with qualified decision-makers faster and close more deals. Headquartered in London with global offices, Cognism's contact data and contextual signals are trusted by thousands of revenue teams to eliminate the guesswork from prospecting. Hybrid: This is a hybrid role, requiring you to work from our London office 3 days per week, with flexibility to work remotely on other days. YOUR ROLE As our Director of Product Management, you will lead and scale a high-performing product management team, owning the strategy, roadmap, and execution of our flagship Sales Companion product. Partnering closely with Engineering, Design, and GTM leaders, you'll ensure Sales Companion delivers measurable value to customers and dr
        Cognism is the leading provider of European B2B data and sales intelligence. Ambitious businesses of every size use our platform to discover, connect, and engage with qualified decision-makers faster and close more deals. Headquartered in London with global offices, Cognism's contact data and contextual signals are trusted by thousands of revenue teams to eliminate the guesswork from prospecting. Hybrid: This is a hybrid role, requiring you to work from our London office 3 days per week, with flexibility to work remotely on other days. YOUR ROLE As our Director of Product Management, you will lead and scale a high-performing product management team, owning the strategy, roadmap, and execution of our flagship Sales Companion product. Partnering closely with Engineering, Design, and GTM leaders, you'll ensure Sales Companion delivers measurable value to customers and dr
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        We are seeking an Agentic AI Engineer to join our growing AI & Data Science team. This role focuses on building, deploying, and scaling agentic AI systems autonomous, goal-driven AI agents that augment decision-making, automate complex workflows, and deliver actionable insights across Exiger's risk and compliance platforms. You will work closely with data scientists, software engineers, and product leaders to push the boundaries of applied AI in high-stakes environments. Key Responsibilities * Design, develop, and deploy agentic AI systems capable of reasoning, planning, and autonomously executing multi-step tasks. * Integrate large language models (LLMs) , vector databases, and external APIs into dynamic agent frameworks. * Collaborate with product teams to translate compliance, risk, and supply chain use cases into scalable AI-driven workflows.
        We are seeking an Agentic AI Engineer to join our growing AI & Data Science team. This role focuses on building, deploying, and scaling agentic AI systems autonomous, goal-driven AI agents that augment decision-making, automate complex workflows, and deliver actionable insights across Exiger's risk and compliance platforms. You will work closely with data scientists, software engineers, and product leaders to push the boundaries of applied AI in high-stakes environments. Key Responsibilities * Design, develop, and deploy agentic AI systems capable of reasoning, planning, and autonomously executing multi-step tasks. * Integrate large language models (LLMs) , vector databases, and external APIs into dynamic agent frameworks. * Collaborate with product teams to translate compliance, risk, and supply chain use cases into scalable AI-driven workflows.
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        Location: London, UK (Hybrid Working) Department: Investment Operations, Fund Services - Reports to: Manager, Data Production UK - Employment Type: Full-Time - We are a global investment leader committed to delivering better outcomes for millions of members. If youre passionate about data, thrive in a collaborative environment, and want to play a key role in shaping the future of investment data services in our growing London office, this is your opportunity. At AustralianSuper , were more than a super fundwere a purpose-driven organisation focused on helping members achieve their best financial position in retirement. As we continue to expand our global footprint, were looking for a dedicated Data Analyst to join our Investment Data Services team. This is a unique opportunity to support data transformation initiatives that directly impact investment decision-making a
        Location: London, UK (Hybrid Working) Department: Investment Operations, Fund Services - Reports to: Manager, Data Production UK - Employment Type: Full-Time - We are a global investment leader committed to delivering better outcomes for millions of members. If youre passionate about data, thrive in a collaborative environment, and want to play a key role in shaping the future of investment data services in our growing London office, this is your opportunity. At AustralianSuper , were more than a super fundwere a purpose-driven organisation focused on helping members achieve their best financial position in retirement. As we continue to expand our global footprint, were looking for a dedicated Data Analyst to join our Investment Data Services team. This is a unique opportunity to support data transformation initiatives that directly impact investment decision-making a
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        Zurich Insurance UK is expanding its DevOps team to meet the increasing demand for digital transformation, API-led application development, Agile delivery, DevOps practices and innovation.
        Zurich Insurance UK is expanding its DevOps team to meet the increasing demand for digital transformation, API-led application development, Agile delivery, DevOps practices and innovation.
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        Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
        Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion - Proven track record in API based products
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        Support the Developer & API team in the creation of targeted messaging and marketing strategies to influence awareness and adoption of Mastercard products among developers as part of the buying committee.
        Support the Developer & API team in the creation of targeted messaging and marketing strategies to influence awareness and adoption of Mastercard products among developers as part of the buying committee.
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        Experience working with software systems including querying, SQL scripting, and working with API development * Technical understanding of Meta advertising products (including Ads and Pages API, Identity Platform) * Experience working with API documents, calling APIs using scripts, and testing APIs
        Experience working with software systems including querying, SQL scripting, and working with API development * Technical understanding of Meta advertising products (including Ads and Pages API, Identity Platform) * Experience working with API documents, calling APIs using scripts, and testing APIs
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        Define and maintain API specifications. You understand and have implemented Application Programming Interface (API) standards and cataloguing to drive API/service adoption and commercialization.
        Define and maintain API specifications. You understand and have implemented Application Programming Interface (API) standards and cataloguing to drive API/service adoption and commercialization.
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        At NiCE, we dont limit our challenges. We challenge our limits. Always. Were ambitious. Were game changers. And we play to win. We set the highest standards and execute beyond them. And if youre like us, we can offer you the ultimate career opportunity that will light a fire within you. Senior Implementation Engineer, Southampton (5 days a week) So, whats the role all about? We are looking for a talented implementation specialist to join our technology team. Primary focus will be on implementing the technical aspects of NiCE product deployments and non-standard configuration requests as well as assisting product teams to successfully introduce new products/versions. Championing supportability and delivering preventative actions on behalf of our customers is also key. How will you make an impact? * Implementing and supporting custom deployments and integration of vario
        At NiCE, we dont limit our challenges. We challenge our limits. Always. Were ambitious. Were game changers. And we play to win. We set the highest standards and execute beyond them. And if youre like us, we can offer you the ultimate career opportunity that will light a fire within you. Senior Implementation Engineer, Southampton (5 days a week) So, whats the role all about? We are looking for a talented implementation specialist to join our technology team. Primary focus will be on implementing the technical aspects of NiCE product deployments and non-standard configuration requests as well as assisting product teams to successfully introduce new products/versions. Championing supportability and delivering preventative actions on behalf of our customers is also key. How will you make an impact? * Implementing and supporting custom deployments and integration of vario
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        To complement the efficient networking architecture, you will help designing Infrastructure-as-a-Service virtual network orchestration API-driven services to support tenants workloads security and performance SLAs for BMaaS, VMaaS and Kubernetes. * Hands-on experience developing secure and performant API-driven services (gRPC, ReST with transport encryption and strong authentication)
        To complement the efficient networking architecture, you will help designing Infrastructure-as-a-Service virtual network orchestration API-driven services to support tenants workloads security and performance SLAs for BMaaS, VMaaS and Kubernetes. * Hands-on experience developing secure and performant API-driven services (gRPC, ReST with transport encryption and strong authentication)
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        Senior C# Software Engineer

        Spectrum It Recruitment Limited
        UK
        £60000 - £65000 per annum
        Due to continued success, they are looking to grow one of their key software engineering teams working on some of their most successful SaaS products. The Senior C# Software Engineer will join an established team developing business logic for Windows based products. Key experience * Extensive commercial experience in C# Windows programming * Multithreading / TPL * XML * SQL * Version control * Unit testing Experience in any of the following areas would be advantageous but is not a prerequisite * WIX installers * Windows services eg Active Directory, Exchange etc * Client-server architecture development * M365 APIs 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 one of their key software engineering teams working on some of their most successful SaaS products. The Senior C# Software Engineer will join an established team developing business logic for Windows based products. Key experience * Extensive commercial experience in C# Windows programming * Multithreading / TPL * XML * SQL * Version control * Unit testing Experience in any of the following areas would be advantageous but is not a prerequisite * WIX installers * Windows services eg Active Directory, Exchange etc * Client-server architecture development * M365 APIs 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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        Frequently Asked Questions

        How many permanent API jobs are there in Windsor?
        There are 26 permanent API jobs within 20 miles of Windsor available on CWJobs right now.

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