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    Python Developer – APIs & LLM Data Infrastructure (Energy Markets)

    Overview Modo Energy is building the data and AI infrastructure behind the energy transition — ingesting global energy datasets and powering APIs, analytics platforms, and LLM-driven systems that understand real-world power markets. Our data platform processes huge volumes of energy marke ...

    Quantitative Developer (Low Latency) EMEA (F/M/D)

    Flowdesk's mission is to build a global financial institution for digital assets, one designed from the ground up for market integrity and efficiency. To achieve this in a rapidly evolving market, we apply a disciplined, first-principles approach to everything we do. This approach is embedded in our ...

    Quantitative Developer (Low Latency) EMEA (F/M/D)

    Quantitative Developer (Low Latency) EMEA (F/M/D) Direct message the job poster from Flowdesk. Flowdesk's mission is to build a global financial institution for digital assets, one designed from the ground up for market integrity and efficiency. To achieve this in a rapidly evolving marke ...

    Remote Frontend Web Developer — Build FinTech UX & Impact

    A dynamic FinTech SaaS company is seeking a mid-level Front End Web Developer to transform polished Figma designs into responsive web pages. You will collaborate with designers and product owners to deliver high-quality web experiences and work on both internal and external customer-facing sites. The ideal candi ...

    C# Developer: Modernize Legacy Apps with REST & SQL

    ASP.NET MVC experience would be a significant positive Entity Framework experience would be a significant positive .NET Core beneficial but not required. Good understanding of the principles of REST-based web applications. Experience dealing with existing complex legac ...

    Front Office FX E Trading Developer Hybrid London

    A leading financial services firm in London is looking for a Jnr/Mid-level Front Office E-Trading Developer to support their FX trading desk. This position involves developing bespoke trading tools, providing real-time support, and collaborating with traders and stakeholders in a fast-paced environment. The idea ...

    Senior Salesforce Developer 6 Month Contract (Remote UK)

    Une entreprise de technologie recherche des experts Salesforce pour plusieurs rôles, y compris un développeur senior et des administrateurs, dans le cadre d'une transformation majeure. Les candidats doivent avoir des compétences en développement Salesforce et une expérience en milieu exigeant. Le travail peut se ...

    Python Developer: Front Office Trading Tech & R&D

    A tech-native consultancy in London is looking for a Python Developer to join their Front Office R&D and Trading Technology team. The role involves designing and maintaining Python-based core libraries, providing L1/L2 user support, and improving system reliability. Ideal candidates should have a strong grasp of ...

    SQL Developer: BigQuery & ETL Expert for Digital Transformation

    A global consultancy is seeking a skilled SQL Developer to work on a significant Digital Transformation programme for a major Telecoms customer. The role involves collaborating with internal and external stakeholders to resolve technical issues, investigating data sources, and prototyping solutions. The ideal ca ...

    Contract Flutter Developer — Build High Impact Mobile Apps

    A well-known multinational corporation is seeking a Flutter Developer on contract in Greater London. The role requires 3-7 years of experience in Flutter and 3+ years with Cloud Firestore, Push Notifications, and Cloud Functions. Candidates will support various application functions, implement BLOC patterns, and ...

    D365 CE/CRM Developer Security Cleared London & Remote

    Every Cloud are currently seeking a Security Cleared D365 CE/CRM Developer for a role based in London and Remote. You will be working on a range of interesting projects and programmes, utilising your D365 CE/CRM Development expertise. Your role will include Solution Design and Development, Data Migr ...

    Software Developer Research Technology London, England, United Kingdom

    Software Developer - Research Technology XTX Markets is a leading algorithmic trading firm which uses state-of-the-art machine learning technology to produce price forecasts for over 50,000 financial instruments across equities, fixed income, currencies, commodities and crypto. It uses those fore ...

    Senior Guidewire Developer ACE Certified Claims Center Expert

    A technology consulting firm is seeking a Senior Software Engineer with over 12 years of Guidewire ClaimCenter experience. The ideal candidate will possess a Guidewire Ace certification and have strong expertise in claims across various modules. Responsibilities include developing integrations between ClaimCente ...

    Hybrid FX Front Office E Trading Developer Python

    A leading financial services firm in London is looking for a Jnr/Mid-level Front Office E-Trading Developer. This role supports a dynamic FX trading desk and requires strong Python development skills alongside a solid understanding of financial markets. The successful candidate will engage with traders, maintain ...

    Senior Product Developer Accessories (Part Time, 3 Days)

    A leading accessories retailer in Greater London is seeking a senior product developer for a part-time role (3 days/week). The successful candidate will drive the product development process and collaborate with the design team. This opportunity comes during a period of growth and offers a generous benefits pack ...

    Senior Web App Developer – ASP.NET, Cloud Native, eCommerce

    A global entertainment company seeks a Senior Web Application Developer in Hammersmith, London. This permanent role requires leadership in web platform modernization using ASP.NET MVC 5, C#, and cloud technologies. The ideal candidate will collaborate across teams to create engaging, secure web applications and ...

    Senior Frontend Developer 4 Day Week in London

    A dynamic IT start-up in London is seeking a Senior Frontend Developer to contribute to the growth of innovative web applications. The role entails delivering new features to a diverse customer base while collaborating closely with designers and a small team. Candidates should have at least 5 years of experience ...

    Back End Developer (C#, Umbraco) 18 Month Contract

    A dynamic digital solutions company in Greater London is seeking a proactive Midweight Back-End Developer to support and maintain their websites. The ideal candidate will have at least 3 years of hands-on experience with C#, Umbraco, and Azure technologies. This role, offering an 18-month fixed-term contract, em ...

    Remote Avaloq Developer End to End Banking Solutions

    A UK recruitment agency is seeking an Avaloq Developer for a remote position based in Scotland, UK, with a contract duration of 10 months. The role involves designing, implementing, and customizing solutions within the Avaloq Banking Suite. Responsibilities include implementing parameterization, developing modul ...

    Front End Developer Secure, Mission Critical Web Apps

    A leading digital consultancy in the UK is seeking a Front-End Developer to join its national security practice. In this role, you will design and build high-performance web applications and collaborate closely with UX designers and product teams. The ideal candidate will have over 3 years of experience in front ...

    Senior FX Tech Developer – Hybrid, Low Latency Systems

    A global financial services firm seeks a hands-on engineer to implement FX payments and trading systems. Candidates should understand FX and possess ultra-low-latency development practices. Responsibilities include working with FX technology teams, enhancing system architecture, and ensuring compliance with esta ...

    Power BI Developer: Build Insightful Dashboards & Automated Reports

    A leading consulting firm in Greater London is looking for a Power BI Developer to design and deliver data visualization solutions. The role involves developing dashboards, maintaining data accuracy, and supporting analytics platform governance. Ideal candidates will have strong Power BI expertise and a collabor ...

    Remote Rails Developer: Upgrade & API‑Driven SaaS Architect

    A leading recruitment firm is seeking an experienced Ruby on Rails Developer for a remote position. The role involves leading a Rails upgrade across a mature codebase and designing robust RESTful APIs. Candidates should have strong experience in Rails, API integration, and modern development practices. This is a ...

    Hybrid C# Developer for Real Time Finance Analytics

    A leading financial technology company is seeking a talented C# Developer to join a high-performing team in London. In this hybrid role, you'll work on a distributed, real-time P&L and risk analytics platform used by trading desks globally. Responsibilities include developing scalable .NET/C# services, supportin ...

    Dynamics 365 Developer — Remote with London Travel (SC)

    A leading technology consultancy in the UK is looking for an experienced MS Dynamics Developer to support a government department's CRM transformation program. This remote role requires strong skills in Microsoft Dynamics 365 and Power Platform along with active SC clearance. As part of a collaborative team, you ...

    MS Dynamics Developer for NATO with security clearance

    Overview Would you like to join the leading international intergovernmental organization? This is a key technical role within DIANA’s ERP transformation journey, responsible for the development, customization, and integration of Microsoft Dynamics 365 Finance & Operations (F&O). As a Dyna ...

    Senior KDB+ Developer for Global eTrading Analytics (Hybrid)

    A global managed services provider is seeking a contractor to enhance its eTrading MI and Analytics platform. The role involves developing core components, working with quantitative teams, and implementing API-based features. Candidates should have strong q and kdb+ expertise, familiarity with TDD/BDD, and the a ...

    Public Sector Salesforce Developer – Remote, SC Clearance Eligible

    A major public sector contractor in the United Kingdom is looking for an experienced Salesforce Developer for a multi-year project. This mainly remote role includes occasional travel to London. Candidates should possess experience in Salesforce development and have the ability to work within a secure environment ...

    FX Technology – Cross Border Payments, Senior Developer (VP)

    About Citi As the world’s most global bank, Citi gives you the tools to be a trailblazer. We’re not just building technology; we’re building the future of banking. With thousands of employees located around the globe, we are an international team encompassing a broad range of teams, roles, and cu ...

    Low Latency C++ Developer for Options Market Making

    A leading trading firm in Greater London is seeking a motivated software developer to build systems for market making. You will collaborate with traders and developers to create low latency exchange connectivity and optimize trading strategies. Ideal candidates should possess skills in template programming, perf ...

    Mid Level Unity Mobile Games Developer — Hybrid (London)

    A dynamic mobile game studio in Greater London is seeking a mid-level Games Developer with over 3 years of experience. The position focuses on transforming the existing Sing King app and developing new game features that deliver joy to users. The ideal candidate has a strong background in Unity and problem-solvi ...

    SAP BTP Integration Suite Developer – On site London

    A reputable public sector consultancy is seeking an experienced SAP BTP Integration Suite Developer to contribute to a high-profile UK Government programme. The role involves designing and deploying integration flows, ensuring reliability and security across SAP and third-party systems, and collaborating within ...

    Dynamics 365 BC Developer – Cloud ERP & AL Extensions

    A digital transformation partner in Greater London is seeking a Dynamics 365 Business Central Developer to enhance their ERP capabilities. You'll work on impactful projects, develop cloud-based solutions, and collaborate with cross-functional teams. Responsibilities include developing AL extensions and integrati ...

    MS Dynamics Developer for NATO with security clearance

    Would you like to join the leading international intergovernmental organization? This is a key technical role within DIANA’s ERP transformation journey, responsible for the development, customization, and integration of Microsoft Dynamics 365 Finance & Operations (F&O). As a Dynamics 365 F&O Develo ...

    FX Technology – Cross Border Payments, Senior Developer (VP)

    For additional information, please review .**About Citi**As the world’s most global bank, Citi gives you the tools to be a trailblazer. We’re not just building technology; we’re building the future of banking. With thousands of employees located around the globe, we are an international team encompassing a broad ...

    Junior C# Developer: Build Trading Platforms with Quants

    An established hedge fund in Greater London is looking for a developer to work closely with quants and traders. You will build systematic trading applications and actively engage in the development of new trading platforms. Candidates should have robust knowledge of C#/.NET frameworks and some exposure to Python ...

    Senior Software Developer & Team Lead — VFX Rigs & Tools

    A leading visual effects company in Greater London is seeking a Senior Software Developer to lead a team in creating innovative technology for visual effects and feature animation. The ideal candidate will have strong programming skills in C++ and Python and experience with Maya or Houdini SDKs. Responsibilities ...

    Remote E Learning Developer for Data Tools Training

    Data Science Festival is seeking an experienced E-Learning Developer to create engaging digital learning content for internal data products. This fully remote role involves designing interactive content and working with stakeholders across data, product, and operations teams. Strong experience with Articulate St ...

    Remote iOS Developer (Swift/Obj C) 12mo Contract

    Experis is hiring a talented iOS Developer for a remote position, requiring occasional travel to London. You will develop and maintain innovative iOS applications using Swift and/or Objective-C, collaborate with cross-functional teams, and ensure optimal performance. Candidates must have proven experience in iOS ...

    Junior Full‑Stack Developer – Finance Tech, Training Provided

    CityGrad in Greater London is seeking a Junior Full Stack Developer to join their innovative tech team. You will work on building resilient technology solutions and collaborate with cross-functional teams to deliver high-quality software. Ideal candidates are degree-educated in technology, passionate about probl ...

    .NET Developer – GCP, REST APIs & Public Sector Projects

    Methods Business and Digital Technology Ltd is looking for a skilled .NET developer to enhance public sector projects. You will leverage your expertise in ASP.NET, GDS design, and SQL databases while working in a collaborative environment. Our company offers extensive training programs, competitive benefits, and ...

    Senior Juice Developer: End to End Beverage Innovator

    The Turmeric Co. in Greater London is seeking a Senior Juice Developer to join the NPD team and take ownership of product development. This role involves leading the formulation and development of juice beverages from concept to launch while ensuring quality and meeting customer requirements. Candidates must hav ...

    C++ Junior Developer — Training & 18 Month Client Placement

    hackajob is looking for a C++ Junior Developer to work on mission-critical software engineering challenges. Candidates will undergo training at mthree Academy for 4–8 weeks, focusing on in-demand languages like C++. Responsibilities include collaborating with analysts and ensuring application performance and rel ...

    Senior .NET Developer – Real Time Trading & Risk (Azure)

    Intec Select is seeking a Senior .NET Developer to work on innovative greenfield projects within commodity trading. The ideal candidate will develop systems that enhance the trading function, including building a risk system to process real-time trades. Candidates should have strong SQL, experience with front-en ...

    Senior C# .NET Developer for FX Trading Systems

    Jas Gujral is seeking a C# .NET Software Developer in the City of London. The ideal candidate will have 3 to 5 years of experience with C# .NET, including knowledge of FX instruments and financial trading systems. Responsibilities include re-architecting platforms, developing pricing tools, and integrating APIs. ...

    Part Time SFMC Developer Data Driven Journeys (UK)

    iO Associates is seeking a part-time Salesforce Marketing Cloud Developer based in the UK. The ideal candidate will possess strong hands-on experience in the Salesforce Marketing Cloud ecosystem, including Marketing Cloud Next, Growth, and Advanced. Key responsibilities include developing and maintaining solutio ...

    iOS App Developer | swift | dev | for climate change!

    We're on a mission to create a global movement of climate action. We make climate action easy, fun & social. We are a global network of highly skilled developers, activists and professionals all on a mission to help solve the greatest threat to humankind! Join us! We’re making an environmen ...

    GenAI Senior Lead Developer — AI Enablement & Full Stack

    Broadridge is seeking a Senior Lead Developer to join our AI Enablement Team in Greater London. The role involves designing and implementing solutions to enhance AI capabilities, focusing on GenAI projects. Candidates should have a degree in a relevant field and at least 7 years of experience in IT solutions, wi ...

    .NET Developer — Full Stack & Cloud Training (C#, Azure)

    A global technology brand in London is looking for a .NET Developer to join their team. The role offers training in .NET 9, WPF, and modern JavaScript frameworks like React and Angular. You will develop full stack applications and work within an Agile environment. Ideal candidates should have experience with .NE ...

    Senior Ruby on Rails Developer (Remote, Public Sector)

    TXP is seeking a Senior Ruby Developer to join the team in London. The role requires strong experience with Ruby on Rails and the ability to work effectively in a government setting. The ideal candidate will have a collaborative working style, strong communication skills, and previous experience in the public se ...

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