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        15 Permanent API jobs in Windsor + 20 miles

        106 exact matches jobs are outside your preferred location

        Software Engineering Manager

        Halian Technology Limited
        Central London (W1)
        From £120,000 to £130,000 per annum Plus bonus and benefits
        EngineeringManager/SeniorEngineeringManager - Location:Hybrid(3daysperweekin-office) Company:LeadingPaymentsCompany(FinTech) Myclientisahigh-growth,product ledpaymentscompanyoperatingattheforefrontofthefintechecosystem. Theirplatformpowerssecure,scalable,andreliabletransactionsforbusinessesglobally,processingmillionsofpaymentsdailywithastrongfocusoncompliance,resilience,andperformance. Astheycontinuetoscale,wearelookingforanEngineeringManager/SeniorEngineeringManagertoleadhigh-performingteamsbuildingmission-criticalpaymentsinfrastructureandcustomer-facingfinancialproducts. TheRole - Thisisahands-offbuthighlytechnicalleadershiprole. Youwillnotbecodingday-today,butyouwillremainclosetothearchitecture,technicaldecisions,andengineeringquality. Youwillleadateamoftalentedengineersdeliveringsecure,compliant,andscalablepaymentsystemsinaregulatedenvironment.
        EngineeringManager/SeniorEngineeringManager - Location:Hybrid(3daysperweekin-office) Company:LeadingPaymentsCompany(FinTech) Myclientisahigh-growth,product ledpaymentscompanyoperatingattheforefrontofthefintechecosystem. Theirplatformpowerssecure,scalable,andreliabletransactionsforbusinessesglobally,processingmillionsofpaymentsdailywithastrongfocusoncompliance,resilience,andperformance. Astheycontinuetoscale,wearelookingforanEngineeringManager/SeniorEngineeringManagertoleadhigh-performingteamsbuildingmission-criticalpaymentsinfrastructureandcustomer-facingfinancialproducts. TheRole - Thisisahands-offbuthighlytechnicalleadershiprole. Youwillnotbecodingday-today,butyouwillremainclosetothearchitecture,technicaldecisions,andengineeringquality. Youwillleadateamoftalentedengineersdeliveringsecure,compliant,andscalablepaymentsystemsinaregulatedenvironment.
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        AI Semantic Architect

        DXC
        Moorgate, City of London (EC2), EC2V
        Competitive Salary
        Location - Erskine, Newcastle, Farnborough or London - Candidates are required to be eligible for clearance - What Youll Do * Design Ontologies: Develop and maintain ontologies using OWL/RDF to model enterprise data domains and relationships. * Build Knowledge Graphs: Create and manage enterprise knowledge graphs that unify diverse data sources. * Semantic Querying: Develop and optimise SPARQL queries for advanced data retrieval and analytics. * Ensure Data Quality: Implement semantic validation rules (e.g., SHACL, OWL constraints) for data integrity and interoperability. * Integrate with Enterprise Systems: Embed semantic models into data pipelines, APIs, and enterprise workflows. * Collaborate with AI Teams: Enable AI agents and LLMs to leverage ontologies and knowledge graphs for context-aware reasoning.
        Location - Erskine, Newcastle, Farnborough or London - Candidates are required to be eligible for clearance - What Youll Do * Design Ontologies: Develop and maintain ontologies using OWL/RDF to model enterprise data domains and relationships. * Build Knowledge Graphs: Create and manage enterprise knowledge graphs that unify diverse data sources. * Semantic Querying: Develop and optimise SPARQL queries for advanced data retrieval and analytics. * Ensure Data Quality: Implement semantic validation rules (e.g., SHACL, OWL constraints) for data integrity and interoperability. * Integrate with Enterprise Systems: Embed semantic models into data pipelines, APIs, and enterprise workflows. * Collaborate with AI Teams: Enable AI agents and LLMs to leverage ontologies and knowledge graphs for context-aware reasoning.
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        PREMIUM
        Ideas | People | Trust - We’re BDO. An accountancy and business advisory firm, providing the advice and solutions entrepreneurial organisations need to navigate today’s changing world. We work with the companies that are Britain’s economic engine - ambitious, entrepreneurially-spirited and high-growth businesses that fuel the economy - and directly advise the owners and management teams that lead them. We’ll broaden your horizons - To ensure our services and applications are fit for the modern market, our IT team collaborates with every department. They develop, they explore and they implement the new ideas helping us to change the future of accounting, tax and business consulting. But, just as importantly, they maintain the tech that keeps us advancing. By testing and adopting the future of financial technical solutions, they find new and exciting ways to drive us forward.
        Ideas | People | Trust - We’re BDO. An accountancy and business advisory firm, providing the advice and solutions entrepreneurial organisations need to navigate today’s changing world. We work with the companies that are Britain’s economic engine - ambitious, entrepreneurially-spirited and high-growth businesses that fuel the economy - and directly advise the owners and management teams that lead them. We’ll broaden your horizons - To ensure our services and applications are fit for the modern market, our IT team collaborates with every department. They develop, they explore and they implement the new ideas helping us to change the future of accounting, tax and business consulting. But, just as importantly, they maintain the tech that keeps us advancing. By testing and adopting the future of financial technical solutions, they find new and exciting ways to drive us forward.
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        PREMIUM
        About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 70+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 13,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution. About the role
        About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 70+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 13,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution. About the role
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        We're partnering with a high-growth B2B PropTech SaaS business that's transforming how property professionals access and leverage land data across the UK. In just a few years, the company has built one of the most advanced property data platforms in the market, integrating thousands of data sources and processing terabytes of information with sub-24-hour latency. With strong product-market fit, continued revenue growth, and ambitious scaling plans, they're now hiring a Lead Full Stack Engineer to help shape the next phase of the platform. This is a hands-on leadership role within an engineering-led, collaborative environment, ideal for someone who enjoys balancing architectural ownership with meaningful day-to-day coding. The Role - As Lead Full Stack Engineer, you'll combine deep technical expertise with strong leadership and architectural oversight.
        We're partnering with a high-growth B2B PropTech SaaS business that's transforming how property professionals access and leverage land data across the UK. In just a few years, the company has built one of the most advanced property data platforms in the market, integrating thousands of data sources and processing terabytes of information with sub-24-hour latency. With strong product-market fit, continued revenue growth, and ambitious scaling plans, they're now hiring a Lead Full Stack Engineer to help shape the next phase of the platform. This is a hands-on leadership role within an engineering-led, collaborative environment, ideal for someone who enjoys balancing architectural ownership with meaningful day-to-day coding. The Role - As Lead Full Stack Engineer, you'll combine deep technical expertise with strong leadership and architectural oversight.
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        Python Desk Developer

        McGregor Boyall Associates Limited
        London
        £120000 - £160000 per annum + bonus + benefits
        Python, Macro, Fixed Income, Systematic, APIs - We're looking for someone to with with PMs to build live trading tools, APIs and integrate quant analytics models to support risk management, pricing, backtesting and trade lifecycling. You'll be solving systematic problems across Rates / FX / Options / Futures. This role balances financial markets experience and expertise with high level understanding of a large Macro tech stack in order to develop the innovative applications, analytics and infrastructure the fund's PMs and analysts use every day. This is the chance to work very closely with alpha generating personnel and take ownership of a broad spectrum of technical aspects on the desk. Working with very bright people, solving complex challenges. This is a permanent role requiring 4 days per week onsite in London. Bonus buyout and/ or sign-on options are available.
        Python, Macro, Fixed Income, Systematic, APIs - We're looking for someone to with with PMs to build live trading tools, APIs and integrate quant analytics models to support risk management, pricing, backtesting and trade lifecycling. You'll be solving systematic problems across Rates / FX / Options / Futures. This role balances financial markets experience and expertise with high level understanding of a large Macro tech stack in order to develop the innovative applications, analytics and infrastructure the fund's PMs and analysts use every day. This is the chance to work very closely with alpha generating personnel and take ownership of a broad spectrum of technical aspects on the desk. Working with very bright people, solving complex challenges. This is a permanent role requiring 4 days per week onsite in London. Bonus buyout and/ or sign-on options are available.
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        FEATURED
        we are hiring -.NET Developer for London location - job Type: Permanent - Trevel : Hybrid (2-3 days onsite ) Role Overview - We are seeking an experienced .NET Developer with 47 years of hands-on experience in C#, .NET Core, Azure, and database management. The ideal candidate will have strong technical expertise, a problem-solving mindset, and the ability to effectively leverage AI tools and modern technologies to enhance productivity, code quality, and solution design. This role requires close collaboration with cross-functional teams to design, develop, and deploy scalable and secure applications in a cloud-based environment. Key Responsibilities * Design, develop, and maintain scalable applications using C# and .NET Core. * Build and deploy cloud-native solutions on Microsoft Azure. * Develop and optimize database structures, queries, and performance (SQL-based systems).
        we are hiring -.NET Developer for London location - job Type: Permanent - Trevel : Hybrid (2-3 days onsite ) Role Overview - We are seeking an experienced .NET Developer with 47 years of hands-on experience in C#, .NET Core, Azure, and database management. The ideal candidate will have strong technical expertise, a problem-solving mindset, and the ability to effectively leverage AI tools and modern technologies to enhance productivity, code quality, and solution design. This role requires close collaboration with cross-functional teams to design, develop, and deploy scalable and secure applications in a cloud-based environment. Key Responsibilities * Design, develop, and maintain scalable applications using C# and .NET Core. * Build and deploy cloud-native solutions on Microsoft Azure. * Develop and optimize database structures, queries, and performance (SQL-based systems).
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        FEATURED
        At Automata, we're on a mission to transform how scientists work by making automation accessible to every lab in the world. We believe that by giving labs the power to automate, we can unlock discoveries that will shape the future of life sciencesfrom diagnostics and drug discovery to synthetic biology. But were more than just a company disrupting the industrywe're a team of innovators, problem-solvers, and creators passionate about empowering scientists. Our LINQ platform combines hardware and software to streamline workflows, making lab automation fast, flexible, and affordable. This means our customers can focus on groundbreaking research, while we take care of the rest. Why Work at Automata? * Impact: Your work will directly contribute to advancements in science and medicine, supporting labs around the globe as they push boundaries in research and innovation.
        At Automata, we're on a mission to transform how scientists work by making automation accessible to every lab in the world. We believe that by giving labs the power to automate, we can unlock discoveries that will shape the future of life sciencesfrom diagnostics and drug discovery to synthetic biology. But were more than just a company disrupting the industrywe're a team of innovators, problem-solvers, and creators passionate about empowering scientists. Our LINQ platform combines hardware and software to streamline workflows, making lab automation fast, flexible, and affordable. This means our customers can focus on groundbreaking research, while we take care of the rest. Why Work at Automata? * Impact: Your work will directly contribute to advancements in science and medicine, supporting labs around the globe as they push boundaries in research and innovation.
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        Why Deliveroo - Our mission is to transform the way you shop and eat, bringing the neighbourhood to your door by connecting consumers, restaurants, shops and riders. We are transforming the way the world eats and shops by making access to food and products more convenient and enjoyable. We give people the opportunity to buy what they want, as they want it, when and where they want it. We are a technology-driven company at the forefront of the most rapidly expanding industry in the world. We are still a small team, making a very large impact, looking to answer some of the most interesting questions out there. We move fast, value autonomy and ownership, and we are always looking for new ideas. About the role - We are looking for a Staff Security Engineer (L6) with deep expertise in Identity & Access Management (IAM) to help design, build, and evolve our identity, authentication, ...
        Why Deliveroo - Our mission is to transform the way you shop and eat, bringing the neighbourhood to your door by connecting consumers, restaurants, shops and riders. We are transforming the way the world eats and shops by making access to food and products more convenient and enjoyable. We give people the opportunity to buy what they want, as they want it, when and where they want it. We are a technology-driven company at the forefront of the most rapidly expanding industry in the world. We are still a small team, making a very large impact, looking to answer some of the most interesting questions out there. We move fast, value autonomy and ownership, and we are always looking for new ideas. About the role - We are looking for a Staff Security Engineer (L6) with deep expertise in Identity & Access Management (IAM) to help design, build, and evolve our identity, authentication, ...
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        Data Ingest Engineer - Python

        Preservica
        Thames View Industrial Park, Abingdon (OX14), OX14 3YS
        Unspecified
        You are an accomplished Python developer, you know your way around APIs, have a strong handle on supporting or configuring SaaS solutions and you thrive on customer interaction. Are you ready to make your mark on future-proof software? We are Preservica and our groundbreaking active digital preservation solutions are at the razors edge eliminating the challenge of file obsolescence, data ROT and more, addressing the need for smart digital preservation technology. Our award-winning software is used by leading businesses, archives, libraries, museums and government organisations across the globe. We are world leaders and proud of our achievements but to stay ahead we need the brightest and most talented commercial and technical innovators to join our professional services team and right now we are looking for a solid Technical Success / Integration Engineer. About the Role
        You are an accomplished Python developer, you know your way around APIs, have a strong handle on supporting or configuring SaaS solutions and you thrive on customer interaction. Are you ready to make your mark on future-proof software? We are Preservica and our groundbreaking active digital preservation solutions are at the razors edge eliminating the challenge of file obsolescence, data ROT and more, addressing the need for smart digital preservation technology. Our award-winning software is used by leading businesses, archives, libraries, museums and government organisations across the globe. We are world leaders and proud of our achievements but to stay ahead we need the brightest and most talented commercial and technical innovators to join our professional services team and right now we are looking for a solid Technical Success / Integration Engineer. About the Role
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        DevOps Engineer, Azure, Terraform, COR7485B

        Corriculo Ltd
        Grays Inn, Central London (WC1), WC1V
        £60k - 75k per year + Benefits
        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
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        DevOps Engineer, Azure, Terraform, COR7485A

        Corriculo Ltd
        Littlemore, Oxford (OX4), OX4
        £60k - 75k per year + Benefits
        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
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        Youll also advance automation through Infrastructure-as-Code and API-driven approaches to create consistent, scalable, and efficient operations.
        Youll also advance automation through Infrastructure-as-Code and API-driven approaches to create consistent, scalable, and efficient operations.
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        FEATURED

        Senior Software Engineer C#

        Luxion Group Limited
        Eastleigh, Hampshire
        Circa £56k + Up to 15% Discretionary Bonus Scheme
        C#, .NET Core, API's RESTful Services, JSON, Docker, GIT (Bitbucket), OOP, SOLID, Cloud deployment and microservices, NoSQL and Oracle (SQL PL/SQL), AWS & Azure
        C#, .NET Core, API's RESTful Services, JSON, Docker, GIT (Bitbucket), OOP, SOLID, Cloud deployment and microservices, NoSQL and Oracle (SQL PL/SQL), AWS & Azure
        more
        As we transition towards API-first and headless architecture, you'll help shape how our products are consumed through both traditional UI and programmatic integrations. * Define data structures and schemas that support both UI and API consumption * Work with API schemas, reviewing and validating Swagger/OpenAPI specifications * Ensure business logic is accessible through both UI and headless/API channels * Ensure configurations support API-driven transactions and headless integrations * Help stakeholders understand the shift towards API-first architecture * Test API endpoints and validate responses against business requirements * Document API specifications and integration patterns * Exposure to API documentation (Swagger, OpenAPI, YAML) * Experience reviewing or working with API specifications and schemas
        As we transition towards API-first and headless architecture, you'll help shape how our products are consumed through both traditional UI and programmatic integrations. * Define data structures and schemas that support both UI and API consumption * Work with API schemas, reviewing and validating Swagger/OpenAPI specifications * Ensure business logic is accessible through both UI and headless/API channels * Ensure configurations support API-driven transactions and headless integrations * Help stakeholders understand the shift towards API-first architecture * Test API endpoints and validate responses against business requirements * Document API specifications and integration patterns * Exposure to API documentation (Swagger, OpenAPI, YAML) * Experience reviewing or working with API specifications and schemas
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        Senior Technical Product Manager - Product * Nexa - live forecasting & simulation platform for drug and vaccine demand * OneID - syndicated infectious disease intelligence platform * Custom solution and consulting - competitive intelligence, forecasting, and epidemiology services - We are building AI-native decision infrastructure for pharma and biotech. As we scale, we are investing in stronger product leadership to bring clarity, discipline, and velocity across our platforms. Objective of the Role: We are hiring a Senior Technical Product Manager to drive execution and platform evolution for our Nexa platform (a live forecasting & simulation platform for drug and vaccine demand). This is a hands-on role for someone who is deeply comfortable working with data science models, probabilistic forecasting, and AI systems.
        Senior Technical Product Manager - Product * Nexa - live forecasting & simulation platform for drug and vaccine demand * OneID - syndicated infectious disease intelligence platform * Custom solution and consulting - competitive intelligence, forecasting, and epidemiology services - We are building AI-native decision infrastructure for pharma and biotech. As we scale, we are investing in stronger product leadership to bring clarity, discipline, and velocity across our platforms. Objective of the Role: We are hiring a Senior Technical Product Manager to drive execution and platform evolution for our Nexa platform (a live forecasting & simulation platform for drug and vaccine demand). This is a hands-on role for someone who is deeply comfortable working with data science models, probabilistic forecasting, and AI systems.
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        Job Description - Glencore is actively increasing its use of modern technologies within the IT department and is looking for an experienced Senior Developer to join the team. This role will suit an experienced developer with a broad and modern skill set, with a proven history of the commodity or financial trading sectors. The ideal candidate will have a solid understanding of agile methodologies, including story definition, sprint planning, continuous integration, and automated testing. The candidate will be delivery-focused while also mentoring colleagues in all areas of the development lifecycle. * Work within an Agile project team to design and develop robust enterprise-wide solutions that meet technical specifications and design requirements. Utilize industry-standard practices and technologies, delivering low-maintenance, robust applications on budget and on deadline.
        Job Description - Glencore is actively increasing its use of modern technologies within the IT department and is looking for an experienced Senior Developer to join the team. This role will suit an experienced developer with a broad and modern skill set, with a proven history of the commodity or financial trading sectors. The ideal candidate will have a solid understanding of agile methodologies, including story definition, sprint planning, continuous integration, and automated testing. The candidate will be delivery-focused while also mentoring colleagues in all areas of the development lifecycle. * Work within an Agile project team to design and develop robust enterprise-wide solutions that meet technical specifications and design requirements. Utilize industry-standard practices and technologies, delivering low-maintenance, robust applications on budget and on deadline.
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        Frequently Asked Questions

        How many permanent API jobs are there in Windsor?
        There are 15 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, Architecture, amongst many others.