658,209+ Lead Python Developer Cloud Fastapi Data Platforms Jobs in UK — Top Companies Hiring June 2026

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Principal Machine Learning Engineer

Principal Machine Learning Engineer Join us at James Fisher Energy as a Principal Machine Learning Engineer. You will work within the Digital Innovation team, designing and deploying advanced machine learning solutions across real‑world environments such as offshore wind, subsea engineering and l ...

Security Engineer AVP

Join Barclays as a Security Engineer — and help protect and power the next generation of digital banking. You’ll take ownership of securing AWS platforms at scale, driving DevSecOps innovation, and embedding security into the fabric of engineering. This is a high-impact role where you’ll influence h ...

Senior Enterprise Architect Enterprise Architect/Segment lead UK

Role Senior Enterprise Architect Technology Enterprise Architect/Segment lead Location UK/Europe Business Unit STG Compensation Competitive (including bonus) Job Description AI-First Solutioning, Human + Age ...

Software Engineer | Python | Modelling

Overview Software Engineer (Python) – 3 year programme | Inside IR35 | Hybrid Responsibilities Work with data science teams to optimise predictive models and deploy them at scale Build robust, scalable services in Python, with performance-critical elements in C++ </li ...

eTrading Python Production Engineer

Talan in London is seeking a motivated eTrading Production Support Engineer to join its fast-paced Application Support team. The role involves overseeing production support for critical FX applications, monitoring system health, and collaborating with teams to enhance platform performance. The ideal ca ...

Software Engineer III (Python)

Software Engineer III (Python) Are you passionate about building high‑performance backend systems using Python? Do you thrive on solving complex engineering challenges? About the team You will join an Agile squad within Elsevier’s Data Engineering. The squad builds and operates mul ...

Senior Python Backend Architect

Join Partnerize as a Lead Python Engineer, where you will play a pivotal role in designing and evolving scalable backend systems. Take charge of key engineering initiatives while contributing to architectural decisions and collaborating with cross-functional teams. The ideal candidate will need extensi ...

Senior Software Engineer (Python)

digiLab is a formative AI company with world-leading specialists in uncertainty quantification, applied where the stakes are highest and the margin for error is smallest. Our customers are among the largest and most advanced engineering and science‑led organisations in the world, and they are using our tec ...

Senior Software Engineer Python

We are looking for a Backend Senior Software Engineer to help design, build, and operate backend systems. Reporting into our Engineering Director, you will work on production software used by customers and partners, and your work will have an impact on the reliability, usability, and evolution of our platf ...

Principal Software Engineer Python

Principal Software Engineer - PythonTitle: Principal Software Engineer – PythonDepartment: Procode ITLocation: Hybrid – Commutable distance of either Chandlers Ford or OxfordSalary: Circa £65k + Discretionary Bonus SchemeSponsorship: Unfortunately, we are unable to offer sponsorship for this roleIf you're a Prin ...

Senior Software Engineer Python

Senior Software Engineer Python (PR/ ) Cambridge, England Salary: GBP70000 - GBP80000 per annum + bonus + benefits Senior Software Engineer / Developer (Python) Cambridge to £80k Do you have strong backend Python software development experience? You could be joining the wo ...

Senior Python Platform Engineer

Join Barclays as a Python Platform Engineer and create an interactive analytics environment that enables quants, data scientists, and engineers to create, share, and run code at scale. Our multidisciplinary team are delivering notebook experiences with Jupyter & VSCode, distributed compute with Dask/Spark, ...

Backend Software Engineer (Python)

Interested in being part of a growing, specialised team developing an award-winning SaaS analytics platform used to assess over £200bn of non-life insurance business? This is a mid to senior level software engineering role focused heavily on production-grade Python development. This ...

Backend Software Engineer (Python)

Interested in being part of a growing, specialised team developing an award-winning SaaS analytics platform used to assess over £200bn of non-life insurance business? This is a mid to senior level software engineering role focused heavily on production-grade Python development. This ...

Senior Python Software Engineer

Job Title : Senior Python Software Engineer Location : Bristol (Remote - Monthly Site Visit) Salary : £65,000 - £75,000 (Depending on Experience) Please note : Applicants must have permanent and unrestricted right to work in the UK, as sponsorship is not ...

Senior Software Engineer (Python)

Overview Join to apply for the Senior Software Engineer (Python) role at TieTalent . Bristol - fully flexible hybrid / some client visits. Salary up to £65,000 + benefits + discretionary bonus. Responsibilities Support Agile teams that work with a broad sele ...

Senior Software Engineer (Python)

Senior Software Engineer We’re hiring a Senior Software Engineer to play a key role in building and scaling a high-impact ad‑fraud prevention platform used globally. This is a senior IC role for engineers who enjoy ownership, solving complex problems, and setting a high bar for engineering qualit ...

Senior Software Engineer (Python)

In a world of immense uncertainty, digiLab is a pioneering AI company that empowers governments and organisations in safety‑critical or highly regulated industries to solve critical, complex, and high‑stakes challenges using machine learning and uncertainty quantification. From forging a path to cl ...

Senior Software Engineer (Python)

Are you passionate about leveraging technology to drive positive global change? Want to play a key role in developing innovative data analytics systems for a consultancy that's making waves in the sustainability sector? The client A bit about them? They’re a young, ...

Backend Software Engineer (Python)

Interested in being part of a growing, specialised team developing an award-winning SaaS analytics platform used to assess over £200bn of non-life insurance business? This is a mid to senior level software engineering role focused heavily on production-grade Python development. This ...

Principal Software Engineer Python

Principal Software Engineer - PythonTitle: Principal Software Engineer PythonDepartment: Procode ITLocation: Hybrid Commutable distance of either Chandlers Ford or OxfordSalary: Circa £65k +DiscretionaryBonus SchemeSponsorship: Unfortunately, we are unable ...

Senior Python Software Engineer

Job Title : Senior Python Software Engineer Location : Bristol (Remote - Monthly Site Visit)Salary : £70,000 - £80,000 (Depending on Experience) Please note: Applicants must have permanent and unrestricted right to work in the UK, as sponsorshi ...

Principal Software Engineer Python

Principal Software Engineer - PythonTitle: Principal Software Engineer PythonPlease make an application promptly if you are a good match for this role due to high levels of interest.Department: Procode ITLocation: Hybrid Commutable distance of either Chandlers Ford or Oxford<b ...

Principal Software Engineer Python

Principal Software Engineer - Python Title: Principal Software Engineer PythonPlease read the following job description thoroughly to ensure you are the right fit for this role before applying.Department: Procode ITLocation: Hybrid Commutable distance of either Chandlers Ford or OxfordSalary: Cir ...

Principal Software Engineer Python

Principal Software Engineer - PythonTitle: Principal Software Engineer PythonPlease make an application promptly if you are a good match for this role due to high levels of interest.Department: Procode ITLocation: Hybrid Commutable distance of either Chandlers Ford or Oxford<b ...

Python QA Automation Engineer

We're looking for a Python QA Automation Engineer to join EPAM in London, in an onsite working mode, contributing to an AI-driven enterprise project for one of our clients. This role focuses on exposing internal enterprise tooling to AI agents via Model Context Protocol (MCP), ensuring robust quali ...

eTrading Python Production Engineer

Location: London (Hybrid – 3 days in office)Type: Full-time Are you ready to step into a high-performance environment at the heart of global markets? We're looking for a motivated and technically skilled eTrading Production Support Engineer to join our fast-paced A ...

Python Software Engineer Renewables

Job Description Python Software Design Engineer – Renewables Lead Programmer for software tools for a leading renewable engineering company. NB: Please note it is essential to have OO software coding & structural engineering experience in Java, C++, C#, VB, or Py ...

Financial Software Engineer (Python)

We are looking for a Python Software Engineer to join our Client Success Team. The vision of the Client Success Team is to establish a proactive, client-aligned feedback loop that accelerates high-impact feature delivery for the Validus Horizon platform . By doing so, the team enhanc ...

Python Platform Engineer (Contract)

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world‑class researchers and engineers in an environment that values deep exploration and methodical execution – because the best ideas take time to evolve. < ...

Specialist Software Engineer (Python)

Specialist Software Engineer, Python Own prototyping and development of new AI security features for the Darktrace platform Location: London Job Tags: Software About The Role Darktrace is a global leader in AI for cybersecurity that keeps organizations ahead of ...

Production Support Engineer (Python)

Role: Production Support Engineer – Python Client: Elite FinTech Salary: £80,000 – £160,000 + Bonus Location: London / Hybrid The Role My client is seeking an Engineer with a broad skillset to support a range of technology within the ...

Backend Software Engineer (Python)

Join a team developing a SaaS platform used to assess over £200bn of non-life insurance business. This is a mid-level software engineering role focused on production-grade Python development rather than research or one-off analysis. Hybrid role based in London (2 days per week in office) You will w ...

Staff Python Engineer (ML)

What we are building Mimica's mission is to empower enterprises, teams, and individuals to reclaim their most precious resource — time and work more efficiently, with greater purpose and impact. Our AI-powered task mining observes employee actions across the desktop and categorizes them i ...

Senior Python & Databricks Engineer

Stars Arena is seeking a Software Engineer III with advanced proficiency in Python and familiarity with Databricks. The role involves delivering system design, application development, testing, and ensuring operational stability. This full-time position is located in Glasgow, United Kingdom. Candidates should ha ...

Software Engineer Python (x2)

About the Company Procentia is an award-winning software and technology company specialising in the Pensions and Bulk Purchase Annuities market, offering intelligent solutions that put administrators and members at the heart of pension schemes. The Job Software Engineer – Engine ...

Software Engineer Python (x2)

About us Procentia is an award-winning software and technology company specialising in the Pensions and Bulk Purchase Annuities market. We design intelligent solutions that put administrators and members at the heart of any pension scheme. Established in 2002, we’re renowned for our web-b ...

eTrading Python Production Engineer

Location: London (Hybrid – 3 days in office)Type: Full-time Are you ready to step into a high-performance environment at the heart of global markets? We're looking for a motivated and technically skilled eTrading Production Support Engineer to join our fast-paced Application Suppo ...

Software Engineer III (Python)

## Software Engineer III (Python)Applylocations: UK-Oxford (Nielsen House)time type: Full timeposted on: Posted Yesterdayjob requisition id: R **Software Engineer III (Python)****Are you passionate about building high‐performance backend systems using Python? Do you thrive on solving complex engineering ...

Software Engineer III (Python)

Software Engineer III (Python) We are looking for a motivated and skilled Software Engineer III to build and maintain software systems in a distributed environment. You will contribute to technical delivery across multiple components, collaborate with product and engineering partners, and help t ...

Python Full Stack Engineer

Overview Senior Full Stack Engineer (Python/Django) | Product Engineering | London (Hybrid 3 days) We’re looking for a Senior Full Stack (Python) Engineer to help scale a fast-growing digital platform that is modernising a large operational industry through software and data. You’ll ...

Python QA Automation Engineer

We're looking for a Python QA Automation Engineer to join EPAM in London, in an onsite working mode, contributing to an AI-driven enterprise project for one of our clients. This role focuses on exposing internal enterprise tooling to AI agents via Model Context Protocol (MCP), ensuring robust quality engineering ...

Principal Software Engineer Python

Principal Software Engineer - PythonTitle: Principal Software Engineer Python Department: Procode IT Location: Hybrid Commutable distance of either Chandlers Ford or Oxford Salary: Circa £65k + Discretionary Bonus Scheme Sponsorship: Unfortun ...

Python Software Engineer Fintech

A Mid - Senior Level Python Engineer is required to join a Fintech company developing next generation tools for how companies get funding and optimise their working capital.Ensure you read the information regarding this opportunity thoroughly before making an application.Our client aims to change how cor ...

Principal Software Engineer Python

Principal Software Engineer - PythonTitle: Principal Software Engineer Python Department: Procode IT Location: Hybrid Commutable distance of either Chandlers Ford or Oxford Salary: Circa £65k + Discretionary Bonus Scheme Sponsorship: Unfortun ...

Quant Researcher – C++ / Python

SummaryOne of the world’s most prestigious hedge funds is looking for an outstanding Quant Researcher to join one of their systematic trading pods.This is a high-impact role, joining a small PM-led team that enjoys huge autonomy and are looking to grow their risk-taking. You’ll work c ...

Senior Software Engineer Python

Job DescriptionWe are looking for a Backend Senior Software Engineer to help design, build, and operate backend systems. Reporting into our Engineering Director, you will work on production software used by customers and partners, and your work will have an impact on the reliability, usability, and ...

Desk aligned Python Engineer

My client is a leading tech-driven diversified trading firm, trading their own capital across a broad range of asset classes, instruments and strategies in markets worldwide. They are looking for exceptional Python engineers to join an established multi-asset trading team with a global presence.The pos ...

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    Lead Python Developer Cloud Fastapi Data Platforms Jobs in United Kingdom Job Search Guide, Trends and Insights