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        1 Temporary API job in Mayfair + 20 miles

        .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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        2 exact matches jobs are outside your preferred location

        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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        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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        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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        Quantative Developer

        Pioneer Search
        City of London, London
        £130000 - £150000 per annum
        Quantitative Developer - Equity Execution | Market Microstructure, Java, Python | £130,000 - £150,000 | London (Hybrid) a Quantitative Developer is required for a global trading firm for their front-office electronic trading team in London. This is a VP-level role focused on the design, development, and optimisation of real-time algorithmic execution strategies in the European equity markets. The position is embedded in a high-performing quant team with a strong focus on market microstructure modelling, passive order logic, and signal-driven execution tactics. This is not a pure engineering role - it's suited to someone who combines solid coding experience with a deep understanding of trading behaviour, order book dynamics, and execution quality.
        Quantitative Developer - Equity Execution | Market Microstructure, Java, Python | £130,000 - £150,000 | London (Hybrid) a Quantitative Developer is required for a global trading firm for their front-office electronic trading team in London. This is a VP-level role focused on the design, development, and optimisation of real-time algorithmic execution strategies in the European equity markets. The position is embedded in a high-performing quant team with a strong focus on market microstructure modelling, passive order logic, and signal-driven execution tactics. This is not a pure engineering role - it's suited to someone who combines solid coding experience with a deep understanding of trading behaviour, order book dynamics, and execution quality.
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        Alchemy Technology Services England, United Kingdom (Hybrid) Contract Opportunity Guidewire BillingCenter Developer Remote with occasional EU travel (as needed) - Can be based in UK, Italy or Germany Initial 6-month contract |Outside IR35 Alchemy are looking for an experienced Guidewire BillingCenter Developer to join an ongoing European cloud implementation and rollout project with a large insurance client. * Strong hands-on experience with Guidewire BillingCenter, ideally version 10 or higher * Experience in the Insurance industry preferred * Proven ability to develop and configure BillingCenter integrations, rules, and workflows * Skilled in Gosu programming language * Familiarity with Guidewire Cloud Platform and cloud-native architecture * Experience working in Agile/Scrum delivery environments * Able to collaborate with business and technical teams across Europe
        Alchemy Technology Services England, United Kingdom (Hybrid) Contract Opportunity Guidewire BillingCenter Developer Remote with occasional EU travel (as needed) - Can be based in UK, Italy or Germany Initial 6-month contract |Outside IR35 Alchemy are looking for an experienced Guidewire BillingCenter Developer to join an ongoing European cloud implementation and rollout project with a large insurance client. * Strong hands-on experience with Guidewire BillingCenter, ideally version 10 or higher * Experience in the Insurance industry preferred * Proven ability to develop and configure BillingCenter integrations, rules, and workflows * Skilled in Gosu programming language * Familiarity with Guidewire Cloud Platform and cloud-native architecture * Experience working in Agile/Scrum delivery environments * Able to collaborate with business and technical teams across Europe
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