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        79 API jobs in Chiswick + 20 miles

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        Python Software Developer - Backend

        Xelix
        London
        £60,000 - £80,000 a year
        About us - At Xelix, we work with some of the worlds largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively, whilst remaining profitable. We have over 100 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun & we love to celebrate a milestone together. In this role youll grow, be challenged and help shape the future of Xelix. If youre excited about building something special with us, wed love to hear from you. About the
        About us - At Xelix, we work with some of the worlds largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively, whilst remaining profitable. We have over 100 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun & we love to celebrate a milestone together. In this role youll grow, be challenged and help shape the future of Xelix. If youre excited about building something special with us, wed love to hear from you. About the
        more
        Join Tradewebs European Product Implementation team and play a key role in integrating new trading functionalities and protocols across our industry-leading electronic trading and regulatory reporting platforms. Serving clients in over 65 countries who collectively trade more than $2.5 trillion daily, Tradeweb is at the forefront of electronic markets and this role directly contributes to that growth. As a Product Implementation professional, youll work closely with liquidity providers to deliver seamless deployments, ensuring they are fully enabled on Tradewebs platforms. This is a critical, client-facing role that requires strong communication skills, sound judgment under pressure, and a problem-solving mindset. Well provide the training, support, and collaborative environment to help you thrive. Key Responsibilities
        Join Tradewebs European Product Implementation team and play a key role in integrating new trading functionalities and protocols across our industry-leading electronic trading and regulatory reporting platforms. Serving clients in over 65 countries who collectively trade more than $2.5 trillion daily, Tradeweb is at the forefront of electronic markets and this role directly contributes to that growth. As a Product Implementation professional, youll work closely with liquidity providers to deliver seamless deployments, ensuring they are fully enabled on Tradewebs platforms. This is a critical, client-facing role that requires strong communication skills, sound judgment under pressure, and a problem-solving mindset. Well provide the training, support, and collaborative environment to help you thrive. Key Responsibilities
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        Join Tradewebs European Product Implementation team and play a key role in integrating new trading functionalities and protocols across our industry-leading electronic trading and regulatory reporting platforms. Serving clients in over 65 countries who collectively trade more than $2.5 trillion daily, Tradeweb is at the forefront of electronic markets and this role directly contributes to that growth. As a Product Implementation professional, youll work closely with liquidity providers to deliver seamless deployments, ensuring they are fully enabled on Tradewebs platforms. This is a critical, client-facing role that requires strong communication skills, sound judgment under pressure, and a problem-solving mindset. Well provide the training, support, and collaborative environment to help you thrive. Key Responsibilities
        Join Tradewebs European Product Implementation team and play a key role in integrating new trading functionalities and protocols across our industry-leading electronic trading and regulatory reporting platforms. Serving clients in over 65 countries who collectively trade more than $2.5 trillion daily, Tradeweb is at the forefront of electronic markets and this role directly contributes to that growth. As a Product Implementation professional, youll work closely with liquidity providers to deliver seamless deployments, ensuring they are fully enabled on Tradewebs platforms. This is a critical, client-facing role that requires strong communication skills, sound judgment under pressure, and a problem-solving mindset. Well provide the training, support, and collaborative environment to help you thrive. Key Responsibilities
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        General Information Locations : Guildford, Surrey, United Kingdom - Role ID 211346 Worker Type Temporary - with Benefits (EU & Malaysia) Studio/Department CT - IT Work Model Hybrid Description & Requirements Electronic Arts creates next-level entertainment experiences that inspire players and fans around the world. Here, everyone is part of the story. Part of a community that connects across the globe. A place where creativity thrives, new perspectives are invited, and ideas matter. A team where everyone makes play happen. The Employee & Studio Experience (ESE) IT team powers the people and workplace technology that helps EA teams do their best work. We develop, and support systems that shape the way employees connect . From core platforms to employee experience solutions, we promote approaches that make EA not only a great place to play, but a great place to work.
        General Information Locations : Guildford, Surrey, United Kingdom - Role ID 211346 Worker Type Temporary - with Benefits (EU & Malaysia) Studio/Department CT - IT Work Model Hybrid Description & Requirements Electronic Arts creates next-level entertainment experiences that inspire players and fans around the world. Here, everyone is part of the story. Part of a community that connects across the globe. A place where creativity thrives, new perspectives are invited, and ideas matter. A team where everyone makes play happen. The Employee & Studio Experience (ESE) IT team powers the people and workplace technology that helps EA teams do their best work. We develop, and support systems that shape the way employees connect . From core platforms to employee experience solutions, we promote approaches that make EA not only a great place to play, but a great place to work.
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        Lead the development and operation of scalable, resilient backend services that support our loyalty experiences and help us build deeper connections with our customers. This is a unique opportunity to shape something from the ground up and deliver products that make a real impact. What will you be doing day-to-day? * Product Vision & Strategy: Define and communicate the vision for your domain, aligned with the wider product and platform strategy. * Roadmap & Backlog Ownership: Own and prioritise the product backlog, ensuring the team is focused on delivering value in line with strategic priorities. * Technical Collaboration: Work closely with the engineering lead and architects to ensure solutions are scalable, secure, and aligned with platform standards. * Discovery & Problem Solving: Proactively seek out information, clarify ambiguous requirements, and work with ...
        Lead the development and operation of scalable, resilient backend services that support our loyalty experiences and help us build deeper connections with our customers. This is a unique opportunity to shape something from the ground up and deliver products that make a real impact. What will you be doing day-to-day? * Product Vision & Strategy: Define and communicate the vision for your domain, aligned with the wider product and platform strategy. * Roadmap & Backlog Ownership: Own and prioritise the product backlog, ensuring the team is focused on delivering value in line with strategic priorities. * Technical Collaboration: Work closely with the engineering lead and architects to ensure solutions are scalable, secure, and aligned with platform standards. * Discovery & Problem Solving: Proactively seek out information, clarify ambiguous requirements, and work with ...
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        Were a business with a global reach that empowers local teams, and we undertake hugely exciting work that is genuinely changing the world. Our advanced portfolio of consulting, applications, business process, cloud, and infrastructure services will allow you to achieve great things by working with brilliant colleagues, and clients, on exciting projects. Our inclusive work environment prioritises mutual respect, accountability, and continuous learning for all our people. This approach fosters collaboration, well-being, growth, and agility, leading to a more diverse, innovative, and competitive organisation. We are also proud to share that we have a range of Inclusion Networks such as: the Womens Business Network, Cultural and Ethnicity Network, LGBTQ+ & Allies Network, Neurodiversity Network and the Parent Network.
        Were a business with a global reach that empowers local teams, and we undertake hugely exciting work that is genuinely changing the world. Our advanced portfolio of consulting, applications, business process, cloud, and infrastructure services will allow you to achieve great things by working with brilliant colleagues, and clients, on exciting projects. Our inclusive work environment prioritises mutual respect, accountability, and continuous learning for all our people. This approach fosters collaboration, well-being, growth, and agility, leading to a more diverse, innovative, and competitive organisation. We are also proud to share that we have a range of Inclusion Networks such as: the Womens Business Network, Cultural and Ethnicity Network, LGBTQ+ & Allies Network, Neurodiversity Network and the Parent Network.
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        Were Civica, and we create software that helps deliver critical services for citizens all around the world. From local government, to education, health, and care, over 5,000 public bodies across the globe use our software to provide essential services to over 100 million citizens. Our aspiration is to be a GovTech champion everywhere we work, supporting the needs of citizens and those who serve them every day. Building on 21 years of continuous growth and success, we're at a pivotal point in our journey to realise that aspiration. Why you will love this opportunity as Technical Consultant at Civica - Its an essential role in the Civica LG Division Services Team, working across a range of products and customers in the portfolio to deliver professional services consultancy on several concurrent projects.
        Were Civica, and we create software that helps deliver critical services for citizens all around the world. From local government, to education, health, and care, over 5,000 public bodies across the globe use our software to provide essential services to over 100 million citizens. Our aspiration is to be a GovTech champion everywhere we work, supporting the needs of citizens and those who serve them every day. Building on 21 years of continuous growth and success, we're at a pivotal point in our journey to realise that aspiration. Why you will love this opportunity as Technical Consultant at Civica - Its an essential role in the Civica LG Division Services Team, working across a range of products and customers in the portfolio to deliver professional services consultancy on several concurrent projects.
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        WNS Global Services is looking to hire a seasoned Lead full-stack developer with exceptional skills in .NET Core, C#, SQL, Rest API, Microservices/micro frontend, Entity Framework, Angular (16+ version) and Azure for developing solution that aligns with Architecture, Security, Risk & Compliance requirements of the UK based wealth management client. * Exceptional skills in C# .NET, ASP.net CORE, Rest API and MVC, LINQ, Microservices/micro frontend, Entity Framework.
        WNS Global Services is looking to hire a seasoned Lead full-stack developer with exceptional skills in .NET Core, C#, SQL, Rest API, Microservices/micro frontend, Entity Framework, Angular (16+ version) and Azure for developing solution that aligns with Architecture, Security, Risk & Compliance requirements of the UK based wealth management client. * Exceptional skills in C# .NET, ASP.net CORE, Rest API and MVC, LINQ, Microservices/micro frontend, Entity Framework.
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        Familiarity with API testing and integration diagnostics
        Familiarity with API testing and integration diagnostics
        NEW
        Technology Stack Proficiency : Experienced in Microsoft technologies (C#, ASP.NET Core, Web API), JavaScript (AngularJS or React), and Azure Microservices.
        Technology Stack Proficiency : Experienced in Microsoft technologies (C#, ASP.NET Core, Web API), JavaScript (AngularJS or React), and Azure Microservices.
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        Experience in developing and deploying Cloud Native Applications using Azure PaaS Capabilities (App Services Plans, Key Vault, SQL Azure DB, AzureFunctions, Containers, AKS, Logic Apps, Service Bus, Event Grid, API Management) * Experience in Enterprise Integration Technologies such as Azure API Management, Logic Apps, Service Bus
        Experience in developing and deploying Cloud Native Applications using Azure PaaS Capabilities (App Services Plans, Key Vault, SQL Azure DB, AzureFunctions, Containers, AKS, Logic Apps, Service Bus, Event Grid, API Management) * Experience in Enterprise Integration Technologies such as Azure API Management, Logic Apps, Service Bus
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        Responsibilities include understanding the client's world and use cases, managing requirements, platform training and configuration, dashboard creation, API enablement, partner workspace management (Newsletters, Reports), and troubleshooting. * Configure and optimise the Signal platform (dashboards, newsletters, reports, partner workspaces, API setups).
        Responsibilities include understanding the client's world and use cases, managing requirements, platform training and configuration, dashboard creation, API enablement, partner workspace management (Newsletters, Reports), and troubleshooting. * Configure and optimise the Signal platform (dashboards, newsletters, reports, partner workspaces, API setups).
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        The Runa API empowers thousands of businesses to make payments to 5 billion+ consumers in 190+ countries instantly to cards, wallets, bank accounts and gift cards.
        The Runa API empowers thousands of businesses to make payments to 5 billion+ consumers in 190+ countries instantly to cards, wallets, bank accounts and gift cards.
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        NEW
        Support reporting automation for email, push, and newsletter engagement (e.g., SailThru API integrations, open/click/bounce analysis).
        Support reporting automation for email, push, and newsletter engagement (e.g., SailThru API integrations, open/click/bounce analysis).
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