1,956,458+ Full Stack Engineer Python Javascript Jobs in UK — Top Companies Hiring June 2026

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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)

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)

About Us: ClearRoute is an engineering consultancy bridging Quality Engineering, Cloud Platforms and Developer Experience. We help enterprises reliably bring high-impact digital products to market faster, cheaper, and safer, working with technology leaders facing complex business challenges. ...

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, ...

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 ...

Senior Python/Rust Engineer

Overview Our client is a global cybersecurity company delivering quantum-safe encryption to protect enterprises, governments, and critical national infrastructure. Their advanced cryptography ensures resilience against current and emerging quantum threats, with solutions spanning telecoms, defence ...

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 / AI Engineer

At Biopharm, we believe in diversity, excellence, and open quality culture. If you are interested in becoming a part of the Biopharm team, please send an email with a copy of your Curriculum Vitae to our HR Department. Own the AI backbone of a regulated bioprocess SaaS platform — end to end. Chesha ...

Lead Software Engineer Python

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorganChase within the Emerging Market Repo Trade Management Technology team, you are an integral part of an agile team that works to enhance, bui ...

Lead Python Software Engineer

Position Description Location: Leatherhead (3 days pw onsite) Start: ASAP, End: 12 month contract Day rate: £700pd Inside ir35 SC Clearance required , please do not apply if you are not SC Cleared. Python Software Engineer to join our team - being able to thin ...

Python Engineer (All levels)

Job Description JUXT is seeking experienced engineers to join our client projects. You’ll be responsible for engineering global scale software systems in banking, hedge funds and other financial institutions. We’re looking for engineers that can build using modern cloud-native principles, employ l ...

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 ...

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 ...

Python Software Engineer AI

Mercor Mercor is recruiting U.S./UK/Canada/Europe-based SWEs for a model-training project with a leading foundational model AI lab. Job Overview This is a contract role requiring around 20 hours per week, at least one month long, with pay of $100 per hour based on experience. Succe ...

Senior Risk Engineer (Python)

Our client, a global commodity trading company committed to innovation, is seeking a Senior Risk Engineer to join their engineering team. This role operates at the intersection of commodities risk, market data, and modern software delivery. You will work in a fast-paced environment, taking full own ...

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 ...

Backend Software Engineer (Python)

About Signal Ocean: Signal Ocean is the technology arm of the Signal Group, providing market-leading advanced machine learning and AI-driven intelligence to shipping and commodities professionals worldwide. Our platform delivers tailored, exclusive insights through web, mobile, and API interfaces ...

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 ...

Lead Software Engineer (Python)

Electronic circuit boards are at the core of current and future inventions - space travel, medical robotics, autonomous transportation, augmented reality, bio-engineering. Yet today designing an electronic circuit board is an extremely manual, long and tedious process. At Circuit Mind we believe that this ...

Lead Python Software Engineer

Lead Python Software Engineer - SC Cleared (12 Month Contract) - £700/day (Inside IR35) Location: London or Leatherhead (3 days onsite per week ) Rate: Up to £700 per day (PAYE/Inside IR35) Duration: 12 Month Contract Start: ASAP ...

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, ...

Principal Python Software Engineer

Overview Job Description Building trusted markets – powered by our people. At Cboe Europe, we inspire our people to solve complex challenges together because what we do matters. We provide the financial infrastructure that powers the global economy. As a leading provider of market infrastructure a ...

Lead Python Engineer (Remote)

Job Summary A Lead Python Engineer will be producing clean, testable and maintainable designs for any team tickets they pick up. On top of that they will be an expert in a particular technical domain and be the go‑to person for solving problems related to that domain. They will lead and deliver o ...

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 ...

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 (Python/React)

Software Engineer (Python/React) Location: UK or Portugal Department: Engineering Hours: Full-time About YLD: Everything we do is to empower our clients to move forward. Our purpose is to help our clients develop the capabilities they need to outperform their competitors. ...

Lead Software Engineer Python

Job Description Join us to shape the future of developer experience on one of the firm’s most strategic technology platforms. You’ll have the opportunity to impact how software is built across a vast engineering organization, tackling meaningful technical challenges and driving innovation. We val ...

Senior Python Software Engineer

Senior+ Software Engineer - Python/Blockchain £80,000 - £150,000 + bonus + Equity (circa 60-75% of salary) Python, Blockchain, FastAPI, AWS, Kubernetes Hybrid (Central London - 2-3 days a week) Profitable Gov/SecTech Blockchain Scale up High-trust work with ...

Backend Software Engineer – Python

A fantastic opportunity has opened for an experienced Backend Engineer to join an innovative technology company in London developing the next generation of intelligent software platforms. This Python focused Software Engineer role offers the chance to work on complex, large-scale systems that connec ...

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 ...

Lead Software Engineer Python

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorganChase within the Emerging Market Repo Trade Management Technology team, you are an integral part of an agile team that works to enhance, build, and ...

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 ...

Lead Software Engineer Python

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorganChase within the Emerging Market Repo Trade Management Technology team, youare an integral part of an agile team that works to enhance, buil ...

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 evolv ...

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 ...

Lead Software Engineer Python

Are you passionate about building innovative technology that powers AI and machine learning across a global organization? As part of our team, you’ll help shape the future of model deployment at scale, collaborating with talented engineers and data scientists. You’ll have the opportunity to work on impactf ...

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 ...

Lead Python Software Engineer

KO2 Embedded Recruitment Solutions Ltd provided pay range This range is provided by KO2 Embedded Recruitment Solutions Ltd. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from KO2 Embed ...

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 ...

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 ...

AI Engineer with Python

We are looking for a talented AI Engineer with strong Python expertise to join our team and help build intelligent, scalable AI solutions. Role: AI Engineer with Python Location: London Work mode: Hybrid Exp: 6 yrs and above Hiring: AI Engineer (Pyth ...

Python Engineer Data Domains

Are you looking for a new challenge? Fancy helping us shape the future of motor insurance? Prima could be the place for you. Since 2015, we’ve been using our love of data and tech to rethink motor insurance and bring drivers a great experience at a great price. Our story began in It ...

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. < ...

Rated Labs Python Engineer.

Rated is on a mission to keep the worlds machines aligned and accountable. Rated Labs, the developer behind Rated, was founded in 2022 by Elias Simos and Aris Koliopoulos. In the two years since founding we have built the Rated Explorer into a category defining and well loved product, among Node Operators ...

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 ...

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 ...

Lead Software Engineer Python

Join us to shape the future of developer experience on one of the firm’s most strategic technology platforms. You’ll have the opportunity to impact how software is built across a vast engineering organization, tackling meaningful technical challenges and driving innovation. We value product thinking, techn ...

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    Full Stack Engineer Python Javascript Jobs in United Kingdom Job Search Guide, Trends and Insights