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    Senior DevOps Engineer AWS Cloud & Automation

    A leading digital assets services provider is seeking a Senior Backend Developer to manage AWS infrastructure and develop applications/services. The role demands at least 3 years of DevOps experience, proficiency in AWS and relevant tools like Terraform and Ansible. Candidates should have strong soft skills for ...

    Cloud Driven Java Architect | AWS, CI/CD, Hybrid Infra

    A leading financial services technology firm is seeking a skilled developer for Java solutions focused on AWS environments in Greater London. The position requires building enterprise applications, strong knowledge of functional programming, and familiarity with CI/CD practices. Ideal candidates will have a Bach ...

    Senior C# / .NET FX Trading Systems Engineer

    A leading tech-native consultancy in London is seeking a Senior C# / .NET Developer to join their FX Risk IT team. The role involves designing and developing high-performance trading solutions while collaborating closely with traders and quantitative analysts. Candidates must possess a strong technical backgroun ...

    Senior Python Quant & Trading Platform Engineer

    Mint Selection is hiring a Senior Python Software Engineer/Quantitative Developer to enhance their core analytics and trading platforms. This role emphasizes Python software architecture and development, requiring collaboration with quantitative analysts and data scientists. Key responsibilities includ ...

    Senior DevOps Engineer — CI/CD Platform & DevEx Leader

    A tech company in Greater London seeks a Senior DevOps Engineer to own their CI/CD platform and improve developer experience. The role emphasizes mentoring engineers, establishing best practices for deployment processes, and leveraging AI tooling. The ideal candidate has over 6 years of experience, proficiency i ...

    Geospatial Web Engineer (React) — Hybrid UK

    A technology solutions provider is seeking a motivated software developer to join their team in London. You will build software solutions focusing on geospatial data processing and visualizations. The ideal candidate has 2+ years of software development experience, particularly with web applications, and is prof ...

    Senior WordPress Backend Engineer PHP, Gutenberg

    Java Script Works is looking for a skilled developer to create enterprise-level WordPress plugins and themes primarily using PHP and React.js. The successful candidate will drive strategy in collaboration with multiple disciplines and lead the technical vision on large-scale projects. Experience with headless Ja ...

    VP Quant Dev — High Performance Finance Tech

    Citi is seeking an experienced Quantitative Developer to join the Numerical Performance Group in London. The successful candidate will design, develop, and enhance quantitative libraries for pricing and risk management, utilizing advanced C++ and computational techniques. Strong experience in high-performance co ...

    Senior Quantitative Python Engineer Trading & Risk

    VBeyond Europe is seeking a Python Developer with strong experience in trading and risk management systems within investment banking. The ideal candidate will develop backend applications and data processing logic supporting risk calculations, trade workflows, and reporting. Responsibilities include bu ...

    Applied ML Engineer: LLM Evaluation & MLOps Specialist

    Omaze is seeking an Applied Machine Learning Engineer to join the Developer Publications Intelligence team. You will work with passionate engineers to build and integrate ML models into tools produced for third-party developers. The ideal candidate has strong programming skills and experience with MLOp ...

    Finance Manager — Scale Up UK Projects (Hybrid)

    A high-growth residential developer in London seeks a driven Finance Manager to lead financial reporting and support budgeting processes. This interim role offers a competitive daily rate and strong potential for a permanent position. Ideal candidates are ACA/ACCA qualified with strong financial reporting experi ...

    Senior DevEx Engineer — Build the Golden Path

    On is seeking a Senior or Lead Software Engineer to join their Developer Experience team in Greater London. The role involves designing CI/CD pipelines, contributing to GraphQL infrastructure, and developing self-service tools for internal developers. Candidates should have at least 5 years of experience, strong ...

    Java/Kotlin AVP, Prime Brokerage Tech — Hybrid Role

    A leading global financial institution in Greater London seeks an experienced developer to engineer solutions within Prime Brokerage Technology. This role focuses on Java and Kotlin components, contributing to CI/CD practices and collaborating with stakeholders. The ideal candidate has a proven App Dev backgroun ...

    Senior ETRM Applications Lead for End to End Trading

    Castleton Commodities International is looking for a Senior ETRM Application Developer to join their Commodities Trading Application Development team in Greater London. This position involves designing and supporting applications that facilitate end-to-end commodities trading. Candidates should have over 10 year ...

    Backend Engineer for Solana Perpetuals Exchange

    A crypto-native market-making firm is seeking a Software Developer to design and build core systems for a high-performance perpetual futures exchange on Solana. Candidates should have over 3 years of experience, strong skills in Rust, and familiarity with trading systems. This role offers a unique opportunity to ...

    Senior React Native Engineer Global Opportunities

    Aristocrat is seeking an experienced software developer to work on high-quality React Native features for SDK and mobile applications. This role requires strong expertise in React Native and 5+ years of software development experience, particularly in mobile app development for iOS and Android. The position offe ...

    Senior .NET Lead Cloud Native Backend Architect

    A leading technology consulting firm is looking for a Lead Dot Net Developer to architect and deliver enterprise-grade backend systems using .NET Core and Azure. You will lead a team of developers and ensure high-quality deliverables while collaborating with cross-functional teams to translate business needs int ...

    Senior Java SDET — Lead Test Automation & API Quality

    A cloud services company in Greater London is seeking a Senior Software Developer in Test to enhance automation frameworks for scalable services. The ideal candidate will have at least 8 years of software testing experience and 5 years in test development with strong Java skills. Responsibilities include designi ...

    iOS Software Engineer III – FinTech Wealth Investing

    A leading global financial services firm is seeking an iOS Developer to enhance its mobile platforms. You'll work collaboratively in an Agile team environment, contributing to architecture design and development using Swift and other technologies. Candidates should have experience with iOS app development, stron ...

    Senior JVM Live Debugger Engineer | AI Driven Production

    A leading developer tools company is seeking a Senior Software Engineer in Greater London. This role focuses on enterprise JVM experience and exciting engineering challenges involving AI integration. Responsibilities include designing product features and developing tooling for AI-first workflows. The ideal cand ...

    Senior Options Systems Engineer High Performance Trading

    Citadel Securities in London is seeking a skilled software developer to enhance one of the world’s most powerful trading platforms. The role involves building, maintaining, and supporting software solutions while working closely with business leaders to deliver effective results. The ideal candidate ha ...

    Senior Platform Engineer, Data & AI Platform

    A leading technology firm in London is searching for a Senior Platform Engineer to enhance its Data & AI engineering sub-team. You will be responsible for building scalable technology platforms while automating deployment processes. Applicants should have extensive experience in platform engineering, cloud solut ...

    Senior Mobile Engineer React Native (Cross‑Platform IoT)

    A global consumer product company in Greater London is seeking a talented Mobile App Developer to join their team. The ideal candidate will have a strong background in React Native development for both iOS and Android platforms. You will collaborate with cross-functional teams to develop innovative connected pro ...

    Senior kdb+ Architect: High Performance Data Analytics

    STATE STREET CORPORATION is seeking a Senior kdb+ Developer to join the BestX engineering team in London. The role involves designing and optimizing high-performance data platforms using kdb+, supporting analytics capabilities across multi-assets. Ideal candidates will have over 5 years of kdb+ development exper ...

    Senior Golang Engineer for Government Delivery

    A leading technology recruitment firm is seeking a Senior Software Developer with Golang expertise for a contract position in London. The successful candidate will work in a fast-paced environment on UK government projects. Key responsibilities include building user-centred digital services, collaborating in Agi ...

    Senior Frontend Engineer (Vue/Nuxt) — Remote & Stock Options

    A fast-growing tech start-up in London is seeking a Senior Frontend Developer to join their innovative engineering team. The role offers a salary of up to £110,000 and the opportunity to work on cutting-edge security platform products. Ideal candidates have substantial experience with Vue.JS and Nuxt in a remote ...

    Rates Quant Dev VP: Build Production Trading Systems

    A leading financial services firm in the UK is seeking a Quantitative Developer, Rates – Vice President to design and deliver production systems for systematic trading. You'll work closely with researchers and traders to implement resilient, performant algorithms and enhance execution platforms. The ideal candid ...

    Senior Land Manager – London Large Scale Sites & JV Lead

    A prominent property developer in London is looking for a Senior Land Manager / Associate Land Director to lead acquisitions of large residential sites. The ideal candidate will have experience in buying land, working with joint venture partners, and understanding development costs. This role presents a fantasti ...

    Senior kdb+ Architect for High Performance Analytics

    State Street is looking for an experienced Senior kdb+ Developer to join their BestX engineering team in Greater London. You will design, build, and optimise high-performance data platforms using kdb+, playing a crucial role in enhancing BestX's multi-asset analytics capabilities. Candidates should have a minimu ...

    Senior Software Engineer — Build High Impact Web Platforms

    Europython is seeking a Senior Developer for multiple locations including London, Barcelona, Edinburgh, and Berlin. The candidate will need extensive experience in building technically complex products across various web programming languages. They should have a passion for quality, efficiency, and a commitment ...

    Senior C++ Engineer – High Performance Trading Data (Hybrid)

    A leading FinTech firm in London is seeking a Senior C++ Developer to create high-performance systems focused on market and trade data products. The role involves owning development projects, designing innovative solutions, and maintaining existing applications. Candidates should have extensive C++ experience, w ...

    Senior Solutions Architect IDP & Platform Strategy

    Israelvcforum is looking for a Solutions Architect (SA) to join their team, acting as a trusted advisor to customers post-purchase. This role involves guiding the adoption of Port's Internal Developer Portal (IDP), collaborating with platform and engineering teams to ensure deployment success. The idea ...

    Senior Scala Backend Engineer Hybrid, Own Tech Direction

    Rise Technical Recruitment is seeking a Scala Developer to join their London team. This hybrid role offers a competitive salary up to £85,000 DOE and requires strong Scala and functional programming skills. You will work on backend development, improve system architecture, and collaborate across teams to create ...

    Senior Android Engineer: Event Telemetry Tooling

    A leading social media platform in Greater London is looking for a skilled Android Developer to join the Event Data Tooling team. Candidates should have 5+ years of experience in Kotlin or Java, along with a solid understanding of software engineering best practices. The role involves developing analytics librar ...

    Lead Java/Scala/Ruby Engineer — Startup, Relocation Offered

    This is a job posted by our partner Jooble Yes, it’s a start-up, yes it's bleeding edge. Language is irrelevant. I want bright technologists who can cut solid code. I offer relocation for strong candidates. Job Description Quant Capital is urgently looking for a Lead Java / Scala / R ...

    Principal Platform Engineer — Scale FinTech Infra (London)

    Numi is seeking a Principal Platform Engineer for a hybrid role in London, critically supporting a leading FinTech carve-out. You will design and enhance the Internal Developer Platform, lead migrations for highly available systems, and integrate compliance into development processes. The ideal candida ...

    Software Engineer — Government‑Tech, TDD & Pairing

    Opencast | B Corp™ is looking for a Software Developer in Greater London. This role emphasizes building software with engineering craft and collaboration. Candidates should have expertise in Java or Scala, and hold or be eligible for SC Clearance. Responsibilities include collaborating on testing efforts, implem ...

    Senior C# Engineer for Low Latency Trading Platform

    A leading financial institution in the United Kingdom is seeking a Senior C# Developer to lead the design, development, and support of low-latency pricing and execution platforms for front-office trading teams. The ideal candidate will collaborate closely with quantitative teams, traders, and technology stakehol ...

    Real Time Market Data C# Engineer – Latency Focused

    Attribution Search is looking for a C# Developer to join their Market Data Technology team. This role is pivotal in designing and maintaining market data systems supporting trading and risk functions. The ideal candidate will have experience in C# development, strong database skills, and familiarity wi ...

    Senior Android SDK Engineer, Data Platform

    Spotify is seeking an experienced Android Developer to build and improve SDKs that enable the analysis of user behavior at scale. This role is primarily based in London but allows flexibility for remote work, balancing in-person meetings with home-based productivity. Candidates should have strong skills in Andro ...

    Senior Kotlin Backend Engineer TDD, Kubernetes, CI/CD

    A global financial leader is seeking a Senior Kotlin Developer to join a high-caliber engineering team. You will design high-performance backend services and maintain code quality while leveraging Kotlin and Kubernetes. Ideal candidates should have deep Kotlin expertise, experience with CI/CD pipelines, and a st ...

    Senior KDB+ Performance Engineer

    A leading digital transformation consulting firm in the United Kingdom seeks an experienced Senior KDB+ Developer to design and optimize high-performance data platforms. The role necessitates over 8 years of kdb+ expertise, knowledge in q language, and proficiency in performance tuning. Candidates should be comf ...

    High Throughput C++/Python Trading Systems Engineer

    A financial technology company in Greater London is seeking a C++ and Python developer. Join their middle-office team to work on trade reconciliation, back-testing frameworks, and trading monitoring systems. The role involves writing high-performance code and requires skills in C++ and Python, as well as knowled ...

    Senior Frontend Engineer — Build Financial OS (React/Next)

    A tech startup in Greater London is seeking an experienced frontend developer to join their lean team. The role requires expert knowledge in React, TypeScript, and Tailwind, along with familiarity with NextJS. Candidates who have experience in backend engineering and user-facing software delivery will stand out. ...

    Autonomous Platform Engineer – Real Time Data & AI

    A fast-growing fintech company in Greater London seeks a skilled developer to build scalable backend systems. You'll develop microservices, libraries, and real-time data pipelines while collaborating with teams to define data contracts. Ideal candidates are hands-on with Java, Python, or Go, and possess strong p ...

    Payments Backend Engineer: Scale Global Subscriptions

    A leading technology company in Greater London is seeking an experienced back-end developer for the Payments Team. You will build scalable software solutions to enhance user experience across Proton's products. Ideal candidates will have a strong background in back-end development, experience with PHP/Symfony, S ...

    Senior React Frontend Engineer for Finance Platforms

    Solytics Partners is seeking an experienced Front End Developer to lead the design and implementation of advanced front end frameworks. The successful candidate will work closely with UX/UI designers and product managers, driving improvements in core platform components. Ideal candidates will have proven experti ...

    Senior Backend Engineer – Java, Spring Boot, Docker, Kubernetes

    Zaizi is seeking a Senior Software Developer in Greater London. The ideal candidate will have extensive experience in Java and Agile methodologies, leading teams, and developing digital solutions. A focus on continuous improvement and user experience is vital. Join a supportive work culture where innov ...

    Game Engine Dev Intern — Onsite 6 Month

    Tencent is looking for a Game Engine Developer in Greater London to work in our Research and Development team. You will create foundational systems and tools that support projects across our global studios. The ideal candidate should have a strong proficiency in C++ and Computer Graphics, along with ex ...

    Senior Backend Engineer — Python/Django (Remote UK)

    Kraken Technologies UK is seeking a Backend Developer to build and maintain its cloud-native platform. The role focuses on Python and Django development, domain modelling, and processing large volumes of utility data within AWS. The successful candidate will solve design challenges, process meter readi ...

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      Full Stack Developer Reactpython Jobs in London Job Search Guide, Trends and Insights