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        Api
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        0 Temporary API jobs in Harlow + 20 miles

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        .NET Core / C# Developer

        Certain Advantage
        Lambeth, SE1 7NA
        Competitive
        6 Month Contract London (Hybrid) Rates: Negotiable Were partnering with a global trading organisation at the forefront of commodity markets, delivering high-performance solutions to support fast-paced, data-driven trading desks. This team builds and maintains cutting-edge tools that help traders make rapid, informed decisions in dynamic markets. The Role Were seeking a .NET Core / C# Developer with strong SQL Server skills to join a high-impact development team. Youll be embedded in a trading environment, working closely with end users to deliver robust, efficient, and scalable solutions. Key Responsibilities * Develop and maintain applications using .NET Core / C#, SQL Server * Work closely with traders, analysts, and other stakeholders to gather requirements and deliver rapid solutions
        6 Month Contract London (Hybrid) Rates: Negotiable Were partnering with a global trading organisation at the forefront of commodity markets, delivering high-performance solutions to support fast-paced, data-driven trading desks. This team builds and maintains cutting-edge tools that help traders make rapid, informed decisions in dynamic markets. The Role Were seeking a .NET Core / C# Developer with strong SQL Server skills to join a high-impact development team. Youll be embedded in a trading environment, working closely with end users to deliver robust, efficient, and scalable solutions. Key Responsibilities * Develop and maintain applications using .NET Core / C#, SQL Server * Work closely with traders, analysts, and other stakeholders to gather requirements and deliver rapid solutions
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        NEW
        2025-07-29T00:00:00.000Z London Engineering full Skimlinks , a Taboola company, is looking for a Senior QA Engineer to take a leadership role in test strategy, quality execution, and automation ownership across squads or product areas. This role is ideal for someone who's already thriving in mid-senior QA roles and is now ready to shape quality processes, mentor others, and build automation that scales. You'll operate with autonomy, partner closely with engineering and product, and help ensure we ship software that's not just functional - but reliable, fast, and user-centric. * Own end-to-end quality strategy for high-impact features, services, or user flows. *Design, build, and maintain test automation across UI and APIs usingCypress, Postman, Pytest , and Cucumber . *Drivecross-squad testing efforts (e.g., integration testing, data validation, shared workflows).
        2025-07-29T00:00:00.000Z London Engineering full Skimlinks , a Taboola company, is looking for a Senior QA Engineer to take a leadership role in test strategy, quality execution, and automation ownership across squads or product areas. This role is ideal for someone who's already thriving in mid-senior QA roles and is now ready to shape quality processes, mentor others, and build automation that scales. You'll operate with autonomy, partner closely with engineering and product, and help ensure we ship software that's not just functional - but reliable, fast, and user-centric. * Own end-to-end quality strategy for high-impact features, services, or user flows. *Design, build, and maintain test automation across UI and APIs usingCypress, Postman, Pytest , and Cucumber . *Drivecross-squad testing efforts (e.g., integration testing, data validation, shared workflows).
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        NEW
        Job Title Knowledge Solutions Specialist - 12 month FTC Location London Description The Department The Product team is a customer facing team of technology professionals that support the delivery of value through technology. This is an exciting time to join the team as we continue to help drive forward the Firm's knowledge strategy as part of a product facing organisation approach, working closely with the Knowledge Lawyers (KLs), Risk & Compliance and the wider business. The Role The purpose of this role is to work as part of a highly collaborative team and lead the provision of knowledge management and legal tech services to the Firm and to deliver against our knowledge initiatives. You will play a crucial role in streamlining document creation processes and improving efficiency across the Firm.
        Job Title Knowledge Solutions Specialist - 12 month FTC Location London Description The Department The Product team is a customer facing team of technology professionals that support the delivery of value through technology. This is an exciting time to join the team as we continue to help drive forward the Firm's knowledge strategy as part of a product facing organisation approach, working closely with the Knowledge Lawyers (KLs), Risk & Compliance and the wider business. The Role The purpose of this role is to work as part of a highly collaborative team and lead the provision of knowledge management and legal tech services to the Firm and to deliver against our knowledge initiatives. You will play a crucial role in streamlining document creation processes and improving efficiency across the Firm.
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        SEFE, an international energy company, ensures the security of supply and drives the decarbonisation of its customers. SEFEs activities span the energy value chain, from origination and trading to sales, transport and storage. Through its decades-long expertise in trading and the development of its LNG business, SEFE has become one of the most important suppliers to industrial customers in Europe, with an annual sales volume of 200 TWh of gas and power. Its 50,000 customers range from small businesses to municipalities and multinational organisations. By investing in clean energies and especially in the hydrogen ecosystem, SEFE is contributing to the energy transition. The company employs around 2,000 people globally and is owned by the Federal Government of Germany. Securing energy now and for the future.
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        Power Platform Developer

        SUMMER-BROWNING ASSOCIATES LIMITED
        London
        Up to £0.00 per day + Excellent Day Rates
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        Pioneer Search
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        Triad Group PLC
        EC1, City of London
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        A World-Changing Company Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Our customers rely on Palantirs platforms for some of their most critical operations, and projects often start with an open ended question like Why are we delaying so many flights? or How can we better identify instances of money laundering? As an FDSE, youll apply your problem solving ability, creativity, and technical skills to help organizations use their data to drive a real impact in the world. Youll have the opportunity to gain rare insight into and contribute to some of the worlds most important industries and institutions.
        A World-Changing Company Palantir builds the worlds leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Our customers rely on Palantirs platforms for some of their most critical operations, and projects often start with an open ended question like Why are we delaying so many flights? or How can we better identify instances of money laundering? As an FDSE, youll apply your problem solving ability, creativity, and technical skills to help organizations use their data to drive a real impact in the world. Youll have the opportunity to gain rare insight into and contribute to some of the worlds most important industries and institutions.
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        Why Deliveroo? We're building the definitive online food company, transforming the way the world eats by making hyper-local food more convenient and accessible. We obsess about building the future of food, whilst using our network as a force for good. We're at the forefront of an industry, powered by our market-leading technology and unrivalled network to bring incredible convenience and selection to our customers. Working at Deliveroo is the perfect environment to build a definitive career, motivated by impact. Firstly, the impact that working here will have on your development, allowing you to grow faster than you might elsewhere; secondly, the impact that you can have on Deliveroo, leaving your mark as we scale; and finally, being part of something bigger, through the impact that we make together in our marketplace and communities. What you'll do?
        Why Deliveroo? We're building the definitive online food company, transforming the way the world eats by making hyper-local food more convenient and accessible. We obsess about building the future of food, whilst using our network as a force for good. We're at the forefront of an industry, powered by our market-leading technology and unrivalled network to bring incredible convenience and selection to our customers. Working at Deliveroo is the perfect environment to build a definitive career, motivated by impact. Firstly, the impact that working here will have on your development, allowing you to grow faster than you might elsewhere; secondly, the impact that you can have on Deliveroo, leaving your mark as we scale; and finally, being part of something bigger, through the impact that we make together in our marketplace and communities. What you'll do?
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        Backend Software Engineer Golang Kafka - Start-up

        Client Server
        EC2A, City of London, EC2A 4EB
        £90000 - £110000 per annum + benefits
        Backend Software Engineer / Developer (Golang Kafka API) London / WFH to £110k Do you have a deep knowledge of Go / Golang combined with software architecture and design skills? You could be progressing your career as a Backend Software Engineer at a start-up payments technology company that is revolutionising the payments industry to Africa, improving speed, cost and reliability. As a Backend Software Engineer you'll focus on backend system design, event driven architecture and APIs with a focus on scalability and reliability. You'll join a small, collaborative, Agile team working on 2 week sprints, you'll be a key part of tech discussions and decision making. You'll join colleagues in the London, Canary Wharf offices three days a week (also the possibility to be remote in the UK).
        Backend Software Engineer / Developer (Golang Kafka API) London / WFH to £110k Do you have a deep knowledge of Go / Golang combined with software architecture and design skills? You could be progressing your career as a Backend Software Engineer at a start-up payments technology company that is revolutionising the payments industry to Africa, improving speed, cost and reliability. As a Backend Software Engineer you'll focus on backend system design, event driven architecture and APIs with a focus on scalability and reliability. You'll join a small, collaborative, Agile team working on 2 week sprints, you'll be a key part of tech discussions and decision making. You'll join colleagues in the London, Canary Wharf offices three days a week (also the possibility to be remote in the UK).
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