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    Senior Python Systems Engineer Remote Functional Testing

    Mindrift is seeking a Senior Python Developer with over 5 years of experience, proficient in functional testing and Docker. Responsibilities include creating black-box tests for diverse codebases, managing Docker environments for reproducibility, and utilizing LLMs to improve code quality. This freelance role al ...

    Senior Backend Engineer (Go/Python) – Data Pipelines

    Renesas Electronics Corporation is looking for a Back-End Engineer in Cambridge to design and maintain systems and data pipelines for Octopart. The role involves deep technical challenges and high autonomy, with strong collaboration needed. Candidates should have over 5 years of web service development experienc ...

    Senior Python Tools Engineer — TDD & Scalable Tooling

    Stars Arena is looking for a Senior Tools Software Engineer based in London, United Kingdom. The ideal candidate must possess proficiency in Python programming, focusing on scalable, maintainable, and test-driven development. This full-time role involves effective communication with team stakeholders and ensu ...

    Senior Full Stack Python Engineer Commodities & Finance

    Verition Group LLC is seeking an experienced software developer in Greater London with over 6 years in full stack development. The ideal candidate will demonstrate proficiency in server-side Python programming and data analysis using libraries like Pandas, NumPy, and SciPy. A background in the financial industry ...

    Senior UI Infrastructure Engineer (C++/Python tooling)

    Roku, Inc. in Cambridge, UK is seeking a Senior Software Engineer to develop core features for its UI infrastructure. This role requires extensive experience with C++ and Python, alongside a strong ability to contribute to embedded UI framework development. You will collaborate closely with system architects ...

    Senior Automation Engineer (Python, LLM, Spark, ETL)

    Role Overview We are seeking a highly skilled Senior Automation Engineer with expertise in Python, Large Language Models (LLMs), Spark, and ETL development. The role focuses on building intelligent automation solutions, scalable data pipelines, and integrating AI capabilities into en ...

    Senior Python Engineer Climate Tech, Hybrid (Waterloo)

    Propel is seeking a Senior Python Engineer to join their climate tech startup. In this hybrid role, you will own features and systems from discovery through to production, working in a collaborative environment that values strong engineering skills and ownership. The ideal candidate should have experie ...

    Senior Python Engineer — GCP & FastAPI | Hybrid London

    Client Server Ltd. is seeking a Senior Software Engineer (Python GCP FastAPI) to join their talented tech team in London. This role offers a competitive salary up to £100k and flexibility to work from home twice a week in a hybrid model. As a key member of a growing FinTech start-up, you'll work on enhancing ...

    Senior Python AI Engineer – Real Time Recommendations

    Gazelle Global is hiring a Senior Python Engineer based in Greater London. This role involves building and evolving AI-powered services, focusing on improving the quality and relevance of an AI Stylist product. You'll collaborate with engineers, data scientists, and product stakeholders to enhance the system. Es ...

    Senior Python Backend Engineer — Greenfield Apps & Equity

    Client Server is seeking a Senior Python Developer to work on innovative systems related to Arctic exploration in Cirencester. This role offers a salary up to £85k and the opportunity to design and develop data-centric applications. You'll be working in a close-knit team at a tech start-up, focusing on backend s ...

    Senior Python Systems Engineer Remote Functional Testing

    Mindrift is seeking a Senior Python Developer in Birmingham. This remote role focuses on testing and improving AI systems, requiring deep experience in functional testing, Docker, and Python. Responsibilities include creating black-box tests, managing Docker environments, and leveraging LLMs for development. Can ...

    Senior Software Engineer Python, TypeScript and AWS

    External Description Overview Reach beyond with Liberty IT; for this is where you’ll find the super challenges, where you’ll be given the scope and the support to go further, dig deeper and fly higher. We won’t stand over your shoulder. We won’t get in your way. We certainly won’t hold yo ...

    Senior Python Engineer — 6 Month Contract (London)

    Senior Python Engineer (6 Month Contract) London, United Kingdom Posted 9 months ago Responsibilities Senior Python Engineer to support an interesting project on a six‑month contract. The ideal candidate is able to ramp up quickly and get stuck in with the team. <h3 ...

    Senior Data/ML Engineer Python/Databricks/GCP

    Location: London DW Search are partnering on a high-impact contract opportunity within a fast-paced, data-driven environment supporting portfolio company initiatives for a major asset management firm. This role sits at the intersection of Data Engineering and Machine Learning Engine ...

    Senior Python Engineer Global Scale FinTech Backends

    JUXT is seeking experienced engineers to join our client projects in Greater London. You'll be responsible for engineering global scale software systems in banking, hedge funds, and other financial institutions. The ideal candidate should be a seasoned Python developer with experience in building transformati ...

    Senior Backend Engineer (Python) Hybrid, SC Clearance

    Oxford Dynamics Limited is seeking a Senior Backend Engineer to design and evolve scalable backend services using Python in London. This role involves building RESTful APIs, implementing security measures, and collaborating closely with engineering and product teams. You'll need strong experience in ba ...

    Senior Backend Engineer (Python, APIs) Mentor & Scale

    Stars Arena is seeking a Senior Backend Engineer in London, United Kingdom. The role requires expertise in Python and APIs, along with the ability to mentor team members. As a full-time position, the candidate must take ownership of projects and understand data management and infrastructure. This oppor ...

    Senior Back End Engineer – Python & Node.js (Remote)

    SkyBound in Southampton is seeking a Back-End Developer specializing in Python and Node.js to help build the future of autonomous tech. This role offers the chance to significantly impact the development of their drone platform. Candidates should have over 5 years of backend development experience, with a deep k ...

    Senior Python & Go Engineer — ML, Terraform, Remote

    A consultancy firm is seeking highly skilled Senior Software Developers/Engineers with significant experience in Python and Machine Learning for a sensitive project based in Oxford. Candidates should have 7 to 10 years of proven software development experience, with knowledge of Go being beneficial. The role may ...

    Senior Automation Engineer — Hybrid, Contract (Ansible/Python)

    Oscar Associates Ltd is seeking a Senior Automation Engineer for a contract role based in Birmingham. This position focuses on driving network automation transformations within a major financial services environment. The successful candidate will leverage their expertise in Ansible, Python, and Cisco equipmen ...

    Senior Software Engineer: Python/Django & TypeScript Architect

    Java Script Works in London is seeking a Senior Software Engineer to design, develop, and maintain robust software solutions using Python and TypeScript. The role involves optimizing existing systems through performance tuning and code refactoring. This full-time position offers competitive compensation and requ ...

    Senior ML Engineer Project Based (Python, GenAI)

    Mindrift is looking for machine learning specialists to engage in project-based AI tasks. Candidates should have over 5 years of experience, demonstrating proficiency in Python programming and statistical analysis. Your responsibilities include designing computational problems and verifying solutions using libra ...

    Senior Software Engineer Python (Perm, UK) UK

    Senior Software Engineer - Python (Perm, UK) UK Senior AI Python Engineer (Perm, UK, Remote with occasional travel to client site) This is a full-time, permanent opportunity for candidatesbased in the UK. There will be a need to travel to the office in London occ ...

    Senior Python Engineer Real Time Data & Observability

    A software company in London seeks a Senior Developer to enhance their engineering team. This role centers on building data integrations, developing low-latency feeds, and ensuring system reliability. Ideal candidates have a strong background in Python and experience with web-scraping techniques. Applicants shou ...

    Senior Software Engineer Python, TypeScript and AWS

    Applications processed via employer's online application form We are Liberty IT: industry leaders in digital innovation.Liberty IT is part of Libe... Senior Software Engineer - Python, TypeScript and AWS Overview Reach beyond with Liberty IT; for this is where you’ll find the super c ...

    Senior Python Backend Engineer Remote iGaming APIs

    Burns Sheehan is seeking a Senior Software Engineer to join a rapidly scaling iGaming platform as a technical anchor for the backend team. This remote-first position requires strong backend engineering experience, particularly in Python, along with a proven ability in building production-grade APIs. The role inv ...

    Senior Software Engineer Python, TypeScript and AWS

    External Description Overview Reach beyond with Liberty IT; for this is where you’ll find the super challenges, where you’ll be given the scope and the support to go further, dig deeper and fly higher. We won’t stand over your shoulder. We won’t get in your way. We certainly won’t hold yo ...

    Senior Software Engineer (Full Stack Python/TypeScript)

    Our Future Healthis an ambitious collaboration between the public, charity and private sectors, designed tohelp people live healthier lives for longer through better prevention, earlierdetectionand improved treatment of diseases. We will speed up the discovery of new methods of early disease detection, and ...

    Senior Software Engineer (Full Stack Python/TypeScript)

    Our Future Healthis an ambitious collaboration between the public, charity and private sectors, designed tohelp people live healthier lives for longer through better prevention, earlierdetectionand improved treatment of diseases. We will speed up the discovery of new methods of early disease detection, and ...

    Senior Software Engineer (Full Stack Python/TypeScript)

    Our Future Health is an ambitious collaboration between the public, charity and private sectors, designed to help people live healthier lives for longer through better prevention, earlier detection and improved treatment of diseases. We will speed up the discovery of new methods of early disease detection, ...

    Senior Python Engineer: GCP & FastAPI | Hybrid/London

    Client Server is seeking a Senior Software Engineer with expertise in Python and GCP in London. You will join a talented team to enhance the core banking platform and tackle new projects. The role offers the flexibility to work from home twice a week in a hybrid model and a competitive salary of up to ...

    Senior Python Engineer: AI Code Migration (Remote)

    Mindrift is looking for a Senior Python developer with extensive functional testing experience to work on innovative AI projects. This flexible, freelance role supports remote work with opportunities to earn up to $50 per hour. Successful candidates will have 5+ years in software engineering, deep Docker and Lin ...

    Senior Backend Engineer Python/Django (Hybrid UK)

    A fintech company in London seeks a Senior Back End Engineer to build systems for their German operations. You'll develop backend services, simplify workflows, and advocate for quality in engineering. Ideal candidates will have experience in Python, preferably with Django, and relational databases. This role off ...

    Senior Python Engineer Climate Tech, Hybrid (Waterloo)

    Propel is seeking a Senior Python Engineer to join their climate tech startup. In this hybrid role, you will own features and systems from discovery through to production, working in a collaborative environment that values strong engineering skills and ownership. The ideal candidate should have experie ...

    Senior Python Engineer — GCP & FastAPI | Hybrid London

    Client Server Ltd. is seeking a Senior Software Engineer (Python GCP FastAPI) to join their talented tech team in London. This role offers a competitive salary up to £100k and flexibility to work from home twice a week in a hybrid model. As a key member of a growing FinTech start-up, you'll work on enhancing ...

    Senior Python Engineer — Fintech Scale & Impact, Equity

    A leading fintech company in Greater London seeks a Senior Python Engineer to design and develop automation for core financial operations. The ideal candidate has over seven years of experience in software engineering, strong skills in Python and SQL, and the ability to collaborate effectively with business stak ...

    Senior Python Engineer Fully remote Agentic AI

    Overview Senior Python Engineer - Healthcare We’re looking for a hands-on, production-minded Senior Python Engineer to help build and scale real-world applications. In this role, you’ll develop and deploy robust, production-grade systems that turn advanced analytics into practical solutions ...

    Senior Python Backend Engineer – Climate Tech (FastAPI)

    Victrays is seeking a highly motivated Backend Python Engineer to scale our product and infrastructure. This role involves designing robust backend services and collaborating with engineers to deliver quality customer experiences. The ideal candidate has 4+ years of experience, strong knowledge of Pyth ...

    Senior Data/ML Engineer Python/Databricks/GCP

    Location: London DW Search are partnering on a high-impact contract opportunity within a fast-paced, data-driven environment supporting portfolio company initiatives for a major asset management firm. This role sits at the intersection of Data Engineering and Machine Learning Engine ...

    Senior Python Engineer — 6 Month Contract (London)

    Senior Python Engineer (6 Month Contract) London, United Kingdom Posted 9 months ago Responsibilities Senior Python Engineer to support an interesting project on a six‑month contract. The ideal candidate is able to ramp up quickly and get stuck in with the team. <h3 ...

    Senior Software Engineer Python, TypeScript and AWS

    Applications processed via employer's online application form We are Liberty IT: industry leaders in digital innovation.Liberty IT is part of Libe... Senior Software Engineer - Python, TypeScript and AWS Overview Reach beyond with Liberty IT; for this is where you’ll find the super c ...

    Senior Software Engineer: Python/Django & TypeScript Architect

    Java Script Works in London is seeking a Senior Software Engineer to design, develop, and maintain robust software solutions using Python and TypeScript. The role involves optimizing existing systems through performance tuning and code refactoring. This full-time position offers competitive compensation and requ ...

    Senior Python Engineer: GCP & FastAPI | Hybrid/London

    Client Server is seeking a Senior Software Engineer with expertise in Python and GCP in London. You will join a talented team to enhance the core banking platform and tackle new projects. The role offers the flexibility to work from home twice a week in a hybrid model and a competitive salary of up to ...

    Senior Python Engineer: AI Code Migration (Remote)

    Mindrift is looking for a Senior Python Developer in Manchester to create functional black-box tests for AI projects. Candidates should have over 5 years of experience mainly in Python, expert Docker skills, and strong Linux knowledge. You will manage Docker environments, monitor code coverage, and leverage LLM ...

    Senior Python Engineer: AI Code Migration (Remote)

    Mindrift is looking for a Senior Python developer with extensive functional testing experience to work on innovative AI projects. This flexible, freelance role supports remote work with opportunities to earn up to $50 per hour. Successful candidates will have 5+ years in software engineering, deep Docker and Lin ...

    Senior Python Engineer – AWS, Terraform | Hybrid London

    Oliver Bernard is seeking a Senior Python Engineer in London to design, build, and maintain backend services in a hybrid cloud environment involving AWS and Terraform. The role includes developing CI/CD pipelines and collaborating with cross-functional teams. Ideal candidates will have extensive experience with ...

    Senior Python Engineer Front Office Trading Systems

    Radley James is looking for a skilled software engineer to design and deliver high-performance technology solutions supporting Front Office Sales teams. You will develop scalable systems in a fast-paced environment and collaborate with various stakeholders. The ideal candidate has over 5 years of Python experien ...

    Senior Python Engineer Data Pipelines & AWS (Edinburgh)

    Stars Arena is seeking a Senior Python Engineer located in Edinburgh, United Kingdom, to lead software engineering initiatives and build data pipelines. The ideal candidate should have extensive programming experience in Python and strong knowledge of Amazon AWS. This full-time role offers an opportunity for own ...

    Senior Python Data Engineer — AdTech & Data Platforms

    GroupM is seeking an experienced professional focused on developing and operating data-oriented solutions. Candidates should possess proven experience in AdTech technology, with strong expertise in Python and proficiency in SQL. Familiarity with tools and technologies including Airflow, Kafka, Snowflake, BigQuer ...

    Senior Full Stack Engineer C# Python AWS

    Senior Full Stack Engineer / Developer (C# Python AWS SQL IaC) London 12 month FTC to £180kAre you a full stack technologist with a product based mindset?You could be progressing your career in a hands-on Senior Full Stack Engineer role at a tech driven, global Asset Manager with multiple ...

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