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    Research Software Engineer Scalable AI Tools & Pipelines

    Mistral AI is seeking a Research Engineer based in London to design and optimize complex distributed systems, enabling researchers to train frontier-scale AI models. The ideal candidate has a Master’s in Computer Science, 4+ years of experience building large-scale systems, fluency in Python, and knowledge of co ...

    Cloud Native Software Engineer – SaaS & .NET/Azure

    Konker, based in Ulverston, is seeking an experienced Software Developer to join their agile development team. You will work on developing and enhancing cloud-based software products using modern technologies such as C#, .NET, and Azure. The position offers a competitive salary of £50,000 based on experience, 31 ...

    iOS Software Engineer II Build Travel Apps

    TechBrains is seeking a Software Engineer II with iOS development experience based in or near Oxford, England. This role emphasizes writing code, collaborating with teams, and supporting back-end microservices in a remote-first environment. Candidates should possess at least three years of commercial software de ...

    Staff Software Engineer: Scale‑Focused AI Systems

    Performativ, a fast-moving fintech scaleup based in Greater London, is seeking a Staff Software Engineer to tackle challenging technical problems. This role involves designing scalable systems, improving performance, and ensuring reliability across platforms. Ideal candidates will have strong experience in distr ...

    Founding Software Engineer Lead Platform & Ops (Equity)

    nineDots.io is seeking a Founding Engineer at the Senior/Staff Level in Greater London, offering a salary between £130,000 to £150,000. This role involves end-to-end ownership of the codebase and leading platform optimizations, collaborating closely with the CEO. Candidates should have a strong technical backgro ...

    Hybrid Software Engineer — C#, WPF, Vue.js & Microservices

    Proactive.IT Appointments Limited is looking for a talented Software Engineer to join their growing team in Bristol. The role offers a hybrid work arrangement with 2 days onsite per week. You'll design, develop, test, and maintain applications using C#, WPF, and Vue.js, while collaborating with a diverse team to ...

    Senior Software Engineer, Trading Systems (C++/Python)

    DRW in Greater London is seeking a Software Engineer for the Cumberland Systematic team. This position involves designing and developing full-stack solutions for a global trading operation, focusing on high-frequency trading strategies. Ideal candidates will have extensive experience in C++ and Python, with a st ...

    C++ Software Engineer — Test Framework : Algorithmic Trading

    Exciting opportunity for a C++ Software Engineer with a strong background in Test Framework to join this global Energy company. You will be a hands‑on Software Engineer and evolve and extend the automated testing framework that underpins a latency‑sensitive Algorithmic Trading Platform. Re ...

    Front Office FX Software Engineer (C#/Java)

    Crédit Agricole Group is seeking a Developer in Greater London. The successful candidate will work closely with traders and operational staff, enhancing front-office systems for foreign exchange. Candidates should have experience in C# or Java, some SQL knowledge, and a strong interest in financial markets. Resp ...

    HPC Research Software Engineer for Cosmology Codes

    DURHAM UNIVERSITY is seeking a Research Software Engineer to join their High Performance Computing team within the Department of Physics. This role involves improving existing codes, implementing efficient algorithms, and working with researchers on performance benchmarking for cosmological and nuclear physics p ...

    HPC Research Software Engineer for Cosmology Codes

    DURHAM UNIVERSITY in the North East of England is seeking a Research Software Engineer for their High Performance Computing team in the Department of Physics. The role involves optimizing existing codes for large systems and working with scientific teams in fields such as cosmology and particle physics. The idea ...

    Software Support & Development Engineer (2nd Line, Java)

    Kion Group AG is looking for a Software Support and Development Engineer in Banbury, UK. This role involves providing 2nd line support to customers, documenting service cases, and collaborating on software projects. Ideal candidates should have excellent communication skills, experience in Java software developm ...

    Senior EA Software Test Engineer – Hybrid & Automation

    General Dynamics Lands Systems UK is seeking a full-time Senior Software Test Engineer to join the Engineering Team based in Oakdale, Wales. The successful candidate will play a key role in verifying new capabilities for AJAX Electronic Architecture, earning a competitive salary between £45,600 and £57,000 based ...

    Senior Software Engineer, Medical Devices Risk & QMS

    RN CARE PTE. LTD. is seeking a dedicated professional in the Greater London area to lead risk management and quality management system processes in medical projects. You will be responsible for ensuring compliance with ISO 13485 and IEC 62304 standards, providing guidance to project teams, and maintaining docume ...

    Linux Software Engineer for Traffic Systems (UK)

    Swarco Traffic Holding AG is seeking a Linux Software Development Engineer in Leicester to work on UK integration of a leading traffic light controller. The role involves developing Linux software, co-developing supporting tools primarily in Python, and ensuring the highest quality and security standards. Candid ...

    Senior Software Engineer, Cloud Applications and Services

    Job Requisition ID #: 26WD97386 Senior Software Engineer – Cloud Applications & ServicesLocation: Sheffield (Hybrid) The Team @ Autodesk You will join a collaborative and distributed engineering team within Autodesk Construction Cloud, working on cloud-based services that pow ...

    HPC Research Software Engineer for Cosmology Codes

    Durham University is seeking a Research Software Engineer to join their High Performance Computing team within the Department of Physics. The role involves optimizing scientific codes for cosmology and particle physics research, utilizing C/C++ and Python. Candidates should have experience in code performance im ...

    Air Traffic Software Engineer Hybrid & SC Cleared

    Leidos Innovations UK Ltd is seeking a Software Engineer based in Whiteley, with primarily hybrid work. The successful candidate will be involved in Air Traffic Management programmes, addressing software solutions within safety-critical, real-time systems. Responsibilities cover the full lifecycle, including des ...

    Senior Software Engineer, AI‑Enhanced Developer Experience

    Cisco Systems is looking for a Senior Software Engineer to join the Isovalent team. The ideal candidate will have over six years of experience in architecture, operations, and CI/CD implementation. You will architect AI-assisted tools, collaborate on coding, and streamline operations. This role is at the forefro ...

    Hybrid Test Software Engineer (C/C++/C#)

    MBDA seeks Software Engineers in Bolton, UK, to join the Software Resource and Capability Team. As part of a dynamic hybrid team, you'll work on developing test solutions that influence the product lifecycle of missile systems. Required qualifications include strong programming skills in C, C++, and C#, alongsid ...

    eDV Cleared Software Engineer Lead Backend & Cloud

    iO Associates is looking for a Software Engineer to join their team in Manchester, Gloucestershire, or London. The ideal candidate will have strong skills in Backend development using Java (Spring Boot, Maven) or Python, alongside experience in DevOps practices including CI/CD pipelines and AWS environments. Thi ...

    C++ Software Engineer — Low Latency Trading & Systems

    Old Mission in London is looking for a C++ Software Engineer to enhance their trading infrastructure. You will develop trading algorithms and build scalable applications within a dynamic team. Candidates should have a BS degree and over 3 years of C++ experience. Excellent benefits include a competitive salary, ...

    Principle and Senior Backend Software Engineer (.NET)

    Principle and Senior Backend Software Engineer (.NET) Location: North London/HertfordshireType: Permanent | Strong Salary + Bonus + EquityRight to Work: UK work eligibility required (no sponsorship) What We’re Looking For We’re searching f ...

    Senior Software Engineer Electronic Trading Shared Services

    Senior Software Engineer - Electronic Trading Shared Services Location London Business Area Engineering and CTO Ref # Description & Requirements We are part of the engineering organization that powers Bloomberg’s global Electronic Trading platfo ...

    Senior Software Engineer, Core Experiences — Build SDKs

    Clutch Canada is seeking a Senior Software Engineer to join our Core Experiences Team in Edinburgh. The ideal candidate will collaborate with product teams to deliver efficient solutions and ship cloud functions using Kotlin. In this fast-growing environment, you will have the opportunity to make a significant i ...

    Senior Software Engineer Test AI Model Engineering

    Join to apply for the Software Engineer in Test for AI Model Engineering role at MathWorks 1 day ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. Summary MathWorks has a hybrid work model that enables staff ...

    Senior Software Engineer: Build Scalable, Secure Systems

    Compare The Market Limited is seeking candidates for a role that emphasizes developing scalable services, maintaining deployment pipelines, and ensuring security practices are woven into software development. This role involves collaboration with product and engineering teams to enhance operational efficiency an ...

    Senior Software Engineer, Generative AI for Physics

    BeyondMath, a pioneering startup in Greater London, is looking for an experienced full-stack developer to contribute to their generative physics platform. This role involves designing scalable software, building data pipelines, and leveraging cloud technologies, primarily AWS. Candidates should have a strong pro ...

    Senior Software Engineer – Simscape: Hybrid Work & Modeling

    A leading technology company in the United Kingdom is seeking a Software Engineer for their Physical Modeling team. The ideal candidate will have expertise in C++ and experience with engineering systems. Responsibilities include developing simulation methods, managing software development processes, and interact ...

    Senior AI Software Engineer – Claims Tech & Automation

    Trinity-Claims in Tonbridge is seeking a skilled AI Developer to enhance their claims management systems through AI initiatives. The ideal candidate should have strong experience in C#, ASP.NET, and must demonstrate effective communication with stakeholders. This position offers a salary range of £65,000-70,000 ...

    Senior Software Engineer TS, React, Node £110K

    Scale Up experience is a must We are working with an early stage start-up who have an AI native platform operating in the financial services space. They are already working with funds managing billions in assets but internally they still move like a 10 person startup. They are now h ...

    Lead Software Engineer, back end (L5/6)

    What you’ll do at Synthesia: You will work end-to-end, contributing to our client application written in React and our monolithic backend written in Python, and managing the safe release of your features to our customer base. You will have sole ownership of projects that span mont ...

    Climate Tech Software Engineer Grid Infra & Markets

    A leading energy infrastructure firm is seeking a generalist engineer to develop core software for a decarbonised energy system. The role involves building platforms connecting distributed energy devices, using Python and machine learning. The candidate will work in a fast-paced startup environment, focusing on ...

    Lead Software Engineer End to End Delivery

    Core-Asset-Consulting is seeking a Software Development Team Lead in Newcastle upon Tyne, England. This role involves leading a talented team, driving end-to-end software delivery, and fostering a collaborative technology culture. The ideal candidate should have programming expertise in C#, Java, Rust, or Python ...

    Lead Java Software Engineer – Markets CRM LDN

    Join us to shape the future of our Markets CRM platform and drive impactful technology solutions. As a hands-on leader, you will collaborate with talented engineers and influence the direction of our Markets business. We offer an environment that values innovation, growth, and continuous learning. Your exp ...

    Embedded Software Engineer for Automotive Battery Systems

    A global semiconductor leader in Edinburgh is seeking an innovative embedded software engineer. You will develop industry-leading battery management systems, creating software that integrates embedded technologies with cloud analytics. Ideal candidates are recent graduates or those with a few years of experience ...

    Backend Software Engineer C# Python Market Data

    Backend Software Engineer C# Python – Market Data (PR/ ) London, England Salary: GBP - GBP per annum + bonus + benefits Backend Software Engineer / Developer (C# Python Data Lakes) London / WFH to £150k+ Are you a data savvy Backend Software Engineer? You could b ...

    Senior Lead Software Engineer Secure, Scalable Cloud

    A leading financial institution is seeking a Senior Lead Software Engineer to participate in building and delivering top-notch technology products. The role requires hands-on experience in system design and application development. You will contribute to technical guidance, code development, and influence produc ...

    Full Stack Software Engineer (C#/.NET & Angular)

    Overview Full-Stack Software Engineer (C#/.NET & Angular) – Spreadex, St Albans, England, United Kingdom. The role will be a mix of working from the office and working from home. About Us Spreadex has been operating for 25 years as a sports and financial spread betting prov ...

    Go Software Engineer Fintech API & Distributed Systems

    Upvest in Greater London is looking for a developer passionate about fintech to enhance their investment API. The role involves using cutting-edge technologies like Go, Docker, and Kubernetes to design fault-tolerant systems. Ideal candidates have experience in fintech and event-driven architectures. Upvest offe ...

    Senior Software Engineer C++ (Cloud Video Framework)

    Senior Software Engineer - C++ (Cloud Video Framework) Salary Banding : £59,990 - £81,800 per annum Contract : Full-Time, Permanent Working Location : Hybrid, 2 Days a week in the office, minimum Office Locations : Basingstoke, Bristol, London Hi, I’m Tim S ...

    Software Development Engineer: Build Scalable Cloud Platforms

    Amazon is seeking a Software Development Engineer (SDE-I) to join their team in Greater London. This role involves designing and developing innovative solutions while collaborating with cross-disciplinary teams. Candidates should have a Bachelor's degree in a relevant field and experience in programming language ...

    Senior Lead Software Engineer Cloud Native Microservices

    Join JPMorgan Chase & Co. as a Senior Lead Software Engineer in Greater London, where you will develop cloud-native applications in a collaborative and innovative environment. This role requires deep expertise in Java and cloud technologies, alongside strong problem-solving skills. You will deliver secure, relia ...

    Software Engineer National Security Systems | Flexible/Remote

    BAE Systems Applied Intelligence in Manchester is seeking a Software Engineer to design, develop, and maintain applications for National Security clients. The role requires collaboration with end-users, participation in the software delivery lifecycle, and experience in agile methodologies. Candidates should hav ...

    Senior Software Engineer, Cloud Applications and Services

    **Job Requisition ID #**26WD97386**The Team @ Autodesk** You will join a collaborative and distributed engineering team within Autodesk Construction Cloud, working on cloud-based services that power large-scale construction projects worldwide. The team is composed of experienced engineers across Europe and Nor ...

    Junior AI Software Engineer – Remote, Growth Path

    Give A Grad A Go is seeking a Junior Software Engineer to join an AI start-up in Greater London. The role involves working closely with experienced developers to contribute to and improve software features within an AI-driven platform. Ideal candidates will have a strong understanding of programming fundamentals ...

    Software Engineer — Java/Spring, BI & Data Visualization

    An established industry player is seeking a talented Software Engineer to join their innovative team. This role involves designing and developing software solutions tailored to client needs, utilizing Java and the Spring framework while adhering to Agile methodologies. You will engage with clients to gather requ ...

    Senior .NET Software Engineer, Payments Platform & Scale

    Global Payments Inc. in Belfast is looking for an experienced software developer with strong C# .NET skills and at least 4 years of experience. The role involves designing and implementing features, supporting agile methodologies, and providing mentorship to junior engineers. Ideal candidates will hold a degree ...

    Senior Software Engineer Hybrid (C++, Full Lifecycle)

    Pertemps Network Group is seeking a Senior Software Engineer in the North London area. This role involves designing and developing advanced software solutions for maritime navigation and defence systems, mentoring junior engineers, and owning the full software development lifecycle. Candidates should have strong ...

    Senior Software Engineer Electronic Trading Shared Services

    Senior Software Engineer - Electronic Trading Shared Services Location London Business Area Engineering and CTO Ref # Description & Requirements We are part of the engineering organization that powers Bloomberg’s global Electronic Trading platform ...

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      Fullstack Software Engineer Reactpython Jobs in United Kingdom Job Search Guide, Trends and Insights