Lead Software Developer Python Jobs in UK

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Senior Backend Engineer for AI Powered SaaS

A fast-growing AI company in London is seeking a Back-End Developer to design and maintain systems for their innovative AI-powered products. You will collaborate with senior engineers and data scientists, optimize performance, and contribute to system enhancements. Ideal candidates will have 3-5 years of back-en ...

Quant Dev: Launch & Scale New HFT Strategies

A leading financial firm in London seeks a Quantitative Developer to join a new HFT team. You will play a crucial role in launching and ensuring the profitability of this new desk. The ideal candidate is experienced in quantitative roles, proficient in Python (C++ is a plus), and ready to face multifaceted chall ...

Senior Quant Developer: Derivatives Risk & IMM

Talensa Partners is looking for a Quantitative Developer in London. This role is key for maintaining and enhancing Derivatives risk - Initial Margin Model (IMM) and analytics infrastructure. Candidates should have strong programming skills in Python, knowledge of risk modeling, and a Master's in a quantitative d ...

Senior Quant Developer – Derivatives Risk & IMM Analytics

Talensa is seeking an experienced Quantitative Developer at Associate Director level to enhance their Derivatives risk management. The role requires strong expertise in Python and experience in quantitative development to build risk libraries, validate methodologies, and collaborate with cross-functional teams. ...

Quant Dev Trading & Client Controls (Hybrid)

Deutsche Bank in London is seeking a Quantitative Developer for the Trading and Client Controls team. You will be responsible for developing anomaly detection models to identify fraud, managing stakeholders, and driving high-quality code development. The role requires strong data science skills, excellent progra ...

Senior Backend‑Focused Full‑Stack Engineer — Scale Impact

A leading educational technology company in Greater London is searching for a Full-Stack Developer to engage in backend and frontend development using cutting-edge technologies like Python and Django. The ideal candidate will thrive in a collaborative environment and drive innovation through data-driven decision ...

Senior Quant Developer, Derivatives Risk & Pricing

Apex Systems US is seeking a skilled developer with over 5 years of experience in Python and an understanding of financial services, particularly in derivative risk systems. Candidates should have a degree in computer science and demonstrate strong communication skills to work with stakeholders. The role involve ...

Applied ML Engineer — LLM Evaluations & MLOps

APPLE seeks an Applied Machine Learning Engineer for its Developer Publications Intelligence team in Greater London. The role involves building and integrating machine learning models, driving MLOps excellence, and collaborating with cross-functional teams. Candidates should have strong programming skills in Pyt ...

Senior Payroll Data Engineer: Bitemporal Engine & DAG

Ebury in Greater London is looking for a skilled backend developer to design and implement a comprehensive payroll calculation engine. The role requires deep expertise in Python and Node.js/TypeScript, alongside PostgreSQL mastery. You'll be responsible for developing data ingestion pipelines and ensuring robust ...

Senior Java Architect Hybrid Role in London

A global digital engineering provider is seeking a seasoned Java Developer for a hybrid role in London. The successful candidate will work on complex applications, leading initiatives and mentoring peers. Responsibilities include designing Java and Python systems, collaborating with international teams, and ensu ...

Senior Data Scientist

Get AI-powered advice on this job and more exclusive features. Direct message the job poster from Dentons Senior Resourcing Advisor for the UK & Ireland at Dentons, the world's largest law firm Duration : Permanent Location : UK Reports to : Data Sc ...

Full Stack Engineer (Kotlin and/or Python) – VP

Full Stack Engineer (Kotlin and/or Python) – VP Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. Fro ...

Senior Backend Python Engineer for AI Powered Credit Risk

Citigroup Inc. is seeking a Senior Python Software Engineer in Greater London to develop scalable backend systems for AI tools. The ideal candidate will have proficiency in Python and FastAPI, experience with design patterns, and the ability to work on enterprise software solutions. Alongside competitive salary ...

Senior Full‑Stack Engineer (Python/React) — AI‑Driven, Hybrid

A personalized skincare technology startup is seeking a Senior Software Engineer to enhance their software stack and revolutionize skincare. This hybrid role involves leveraging agentic tools across a Python/React stack, leading engineering evolution in a fast-paced, autonomous environment. Candidates should hav ...

Senior C# Developer C#.Net Sports Trading

Senior C# Developer / Backend Software Engineer (C# .Net) London onsite to £150kAre you an experienced backend focussed C# Developer?You could be progressing your career in a senior, hands-on role at a global Sports Trading business, earning substantial bonuses.As a Senior C# Devel ...

Senior Software Test Engineer

Join us at Entrust At Entrust, we’re shaping the future of identity centric security solutions. From our comprehensive portfolio of solutions to our flexible, global workplace, we empower careers, foster collaboration, and build solutions that help keep the world moving safely.Get to K ...

Senior Software Engineer Healthcare IT & API Specialist

A leading medical technology organization in the UK is seeking a talented Senior Software Developer to join their team. You will design, develop, and maintain high-quality software solutions impacting healthcare professionals. Candidates should have strong experience in C#, .Net Core, and RESTful APIs. This role ...

Fully Remote Senior Java Developer for Sustainable Energy

A leading energy software platform is seeking a Senior Java Developer to support sustainable projects. This fully remote position in the UK emphasizes ownership of projects and involvement in the entire software development lifecycle. Ideal candidates should possess a strong understanding of Core Java, multithre ...

Senior Full Stack Developer (JavaScript)

This range is provided by Fruition Group. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Hiring best in class techies for Enablis Job Title: Senior Full Stack Developer (JavaScript) Locat ...

Quantitative Developer — Real Time P&L & Risk (London)

A global asset management firm is seeking a Quantitative Developer based in the UK to enhance our trading and risk management systems. The successful candidate will play a crucial role in developing real-time P&L and risk systems while collaborating with cross-functional teams. Ideal applicants will have over 5 ...

Senior Tax Manager

Midlands (mainly remote) Softwarec. £80,000 + Bonus + Benefits9950The Role This is a fantastic opportunity to join a rapidly-growing, listed software developer and to lead their tax strategy and compliance functions. As the Senior Tax Manage ...

Senior Embedded Software Engineer RTOS/Aerospace

A leading defense technologies firm in Cheltenham is seeking a talented C/C++ Software Engineer. You will develop software solutions for aerospace and defense systems, collaborating in a dynamic team environment. The role requires strong proficiency in C/C++, embedded Linux, and real-time software design. Join u ...

Sr. Software Development Engineer, Amazon Rufus

Join us at Amazon as we reinvent shopping and search again! We're not just talking about improving the existing Amazon shopping experiences, we're building a brand-new world where shopping is effortless and intuitive through the power of generative AI. Leveraging state-of-the-art Large Language Models and genera ...

Senior Software Engineer Full Stack

Senior Software Engineer - Full‑Stack Deliveroo – London, UK (Hybrid) Why Deliveroo We’re building the definitive online food company, transforming the way the world eats by making hyper‑local food more convenient and accessible. We obsess over building the future of food while ...

Senior Consultant

Customer Success Technical Consultant Low-Code Development Agile Methodologies Software Implementation We are seeking a Senior Technical Consultant to join our Customer Success team. In this role, you will engage with customers post-sales, developing software solutions on the Appian platform to dri ...

Junior Full Stack Developer

Junior Full Stack Developer (JavaScript) Milton Keynes - Hybrid £35,00 - £40,000 + 2 days WFH + Training + HolidayThis is an excellent opportunity for a Junior Full Stack Developer looking to join a business that offers huge internal progression opportunities. Within this role you will become a ...

T Level Digital Support and Security T Level Examiner

**What are T Levels?**T Levels are new courses coming in September 2020, which will follow GCSEs and will be equivalent to three A levels. These two-year courses have been developed in collaboration with employers and businesses, so that the content meets the needs of industry and prepares students for work. ...

T Level Digital Data Analytics T Level Examiner

**What are T Levels?**T Levels are new courses coming in September 2020, which will follow GCSEs and will be equivalent to three A levels. These two-year courses have been developed in collaboration with employers and businesses, so that the content meets the needs of industry and prepares students for work. ...

C# Dot Net Developer with SQL Brighton

Job Description About the JobC# Dot Net - .net Developer – Brighton Our Client is looking to recruit a Junior C# .net Software Developer with SQL skills. The Client develops software for the banking and life and pensions industry. You wil ...

LEAD C/C++ OR JAVA SOFTWARE ENGINEER CORK CITY OR CAMBRIDGE, ENGLAND

Client: Our client a leading Multinational Semiconductor EDA Software Provider requires Lead C/C++ or JAVA Software Engineer for role in Cork City, Irelandor Cambridge, England.The role requires the candidate to be onsite 4 days per week. Role: You will ...

Product Designer

Runware is building one API for all AI. Our platform makes it easy for developers to add advanced AI capabilities to their products in hours instead of months, without the burden of managing GPUs, scaling infrastructure, or keeping up with constant model updates.By combining custom hardware with optimi ...

iOS Engineer III, Feeds/Business Experience

Reddit is a community of communities. It’s built on shared interests, passion, and trust and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With ,+ active communities and approximately M+ daily active uni ...

Engineering Lead (+ Equity) at $27.5M Series B global benefits & fintech infrastructure startup

Job Title Engineering Lead Location London, UK Salary Not Disclosed Company Description $27.5M Series B global employee benefits and fintech infrastructure startup Job Description As a player‑coach Engineering Lead, you will ...

Head of Engineering

Salary: Extremely competitive + Generous Equity component A leading global consulting business in Process Automation are looking for a Head of Engineering to be a leading player in the Services side of their business. The company are seen as a leading business in the real commercial application ...

Algorithm Developer (Weapon Systems)

Join our Weapon System team at MBDA as an Algorithm Developer, working on innovative battle-winning technology.Salary: Circa £55,000 depending on experienceDynamic (hybrid) working: 4 days per week on-site due to workload classificationSecurity Clearance: British Citizen or a Dual UK national wit ...

Senior Quant Developer: Production Ready Pricing & Hedging

Albert Bow is looking for a Senior Quant Developer to join their sophisticated OTC desk in London. The successful candidate will bridge quantitative research and production engineering, focusing on pricing models and liquidity strategies. Key responsibilities include optimising pricing skew, designing automated ...

Production Ready Quantitative Developer

Aurum Search Limited is seeking a high-calibre Quantitative Developer to join its Systematic Trading division in Greater London. This role focuses on architecting and managing high-performance systems that power systematic strategies and converting quantitative models into live system capabilities. Ideal candida ...

Quantitative Data Platform & Risk Analytics Engineer

A leading global hedge fund in London is seeking a quantitative developer to manage data platforms and risk analytics systems. The ideal candidate will have 3-7 years of experience in quantitative development, strong skills in Python and SQL, and proficiency in C#. You will be responsible for monitoring services ...

Senior Backend Engineer – AI Powered SaaS, Scalable

A fast-growing AI company in Greater London seeks a Back-End Developer to collaborate with the Product team and Data Scientists. You will play a key role in designing and maintaining systems for AI-powered products. The ideal candidate has 3-5 years of back-end development experience, proficiency in programming ...

Lead AI Engineer Build Next Gen AI Systems

A pioneering AI-first company in the UK is seeking an AI/ML Developer to design and optimize innovative advisory products. The ideal candidate will have over 3 years of experience in AI/ML development, strong programming skills in Python, and familiarity with TypeScript. This role offers a competitive salary and ...

Quantitative Developer – Rates Desk at Hedge Fund

A growing hedge fund in Greater London is seeking a Quant Developer to join their rates-focused team. The ideal candidate will have 2-5 years of experience in a fast-paced environment, particularly within a hedge fund. Key responsibilities include building infrastructure for quantitative research and working clo ...

Senior Backend Engineer for AI Powered, Scalable SaaS

A forward-thinking technology company in Greater London is seeking a Back-End Developer to work on AI-powered products. You will design and maintain scalable back-end systems while collaborating with data scientists and engineers. The ideal candidate has 3–5 years of experience in back-end development, strong kn ...

Senior Full Stack Engineer: Build AI Enabled Web Apps

A leading financial technology firm in Scotland seeks a Full Stack Web Application Developer to design, build, and support web-based applications. This role involves collaborating with stakeholders to deliver high-quality solutions and mentoring team members. Candidates should have a degree in computer science o ...

Senior Generative AI Engineer: LLMs, Vector DB & Spark

HCLTech is seeking a highly skilled Senior Developer specializing in Python and Generative AI to build scalable AI-driven applications in Greater London. The role requires strong experience with vector databases and Apache Spark. Responsibilities include developing robust APIs, managing data pipelines, and ensur ...

Senior BackEnd Developer Cyber (Contract)

.  Methods Business and Digital Technology LimitedMethods is a £100M+ IT Services Consultancy who has partnered with a range of central government departments and agencies to transform the way the public sector operates in the UK. Established over 30 years ago a ...

Senior BackEnd Developer Cyber (Contract)

.  Methods Business and Digital Technology LimitedMethods is a £100M+ IT Services Consultancy who has partnered with a range of central government departments and agencies to transform the way the public sector operates in the UK. Established over 30 years ago a ...

Senior BackEnd Developer Cyber (Contract)

.  Methods Business and Digital Technology LimitedMethods is a £100M+ IT Services Consultancy who has partnered with a range of central government departments and agencies to transform the way the public sector operates in the UK. Established over 30 years ago a ...

Senior BackEnd Developer Cyber (Contract)

.  Methods Business and Digital Technology LimitedMethods is a £100M+ IT Services Consultancy who has partnered with a range of central government departments and agencies to transform the way the public sector operates in the UK. Established over 30 years ago a ...

Software Engineer (AI Platform) London

Revax is building a new class of AI-native software for tax advisory teams. Today, advisers lose entire days to researching and drafting advice - fragmented knowledge, manual workflows, and brittle tooling. We turn a firm's own expertise into structured, transparent AI systems that draft, analyse, and expl ...

Senior AI Engineer

Senior AI Engineer: Xcede have started working with a frontier AI lab who help large organisations design, build, and deploy real-world Generative AI systems. They work with very well-known brands and generate multi‑million‑pound revenues! < ...

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    Lead Software Developer Python Jobs in United Kingdom Job Search Guide, Trends and Insights