Lead Software Engineer Python Java Jobs in London, UK

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Senior Applications Engineer — Remote Leader in Full Stack

Connect Fibre is seeking a Senior Applications Engineer to design and implement backend services and develop frontend applications. This role requires over 5 years of software development experience and strong skills in programming languages like JavaScript, Python, and PHP. The candidate will lead projects, men ...

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 Python Engineer Demo Data Automation (Flexible)

Global Relay is seeking a Senior Python Software Developer in Greater London to join a dynamic team. In this role, you'll write Python and PowerShell scripts, automate demo data injections, and work closely with cross-functional teams for seamless software delivery. You need over 5 years of Python and 3 years of ...

Senior Python/Django Backend Engineer — AI Pricing

Sanderson is seeking a Senior Django/Python Developer for a 6-month contract in Greater London. The role involves developing backend services for an AI-driven Smart Pricing program supporting a leading UK retailer. You will work closely with engineers and data scientists in an agile environment. Strong experienc ...

AI Driven Electrical Engineer & Python Numerics Expert

Mindrift is looking for specialists to design and solve computational engineering problems for AI projects. This role involves creating original problems that simulate engineering workflows, requiring proficiency in Python and an engineering degree. Contributors will work on project-based tasks with an expected ...

Founding Backend Engineer: Python & AWS | Equity, London

Oliver Bernard is seeking a Founding Backend Engineer to develop core systems for an innovative startup specializing in AI agents for production data pipelines. Candidates should have at least 5 years of experience in backend and distributed systems, with a focus on rapidly shipping products. The role supports h ...

Real Time Python Engineer Trading Data & Risk

Hunter Bond is seeking a high-impact engineer for their specialized team responsible for a real-time risk and trading data platform. The role entails designing high-reliability platforms that manage large amounts of trading data, with responsibilities ranging from building data services to collaborating with tra ...

Senior Python Data Platform Engineer Asset Management

JPMorganChase is seeking a technology professional to design and deliver innovative solutions impacting Asset & Wealth Management. In this role, you will develop secure code, automate recurring issues, and lead evaluation sessions across teams. The position requires cloud analytics experience, advanced programmi ...

Python AI Platform Engineer Build Scalable Apps

The Developer Link in Greater London is seeking ambitious Software Engineers to scale AI products that automate complex workflows in financial services. You'll work in a fast-paced environment, building production-grade software, solving challenging engineering problems, and collaborating closely with founders a ...

Front Office Python Engineer Greenfield Energy Trading

VirtueTech Recruitment Group is hiring a Python Developer for the Front Office in London, working in a hybrid environment. The role involves engineering robust backend services and contributing to high-impact financial tools used by trading teams. Candidates should have strong Python skills, experience in financ ...

Senior Full Stack Engineer (TypeScript & Python) Hybrid

Atarus is a fast-growing FinTech organization in Greater London seeking an experienced engineer with 5+ years in designing large-scale systems. You'll work in a true hybrid model with no fixed days in the office, focusing on collaboration and continuous improvement. Benefits include 25 days holiday plus bank hol ...

Python Engineer Trading in London Quant Capital

Client Overview Our client is one of the largest Quant Investment managers globally, with around £20 billion under management. They are mainly quant based but have high frequency and systematic exposure. Position Details The role sits with an excellent working environment with ongoin ...

Python Backend Engineer | AWS Lambda, London Hybrid

TELSTRA Associates is looking for an experienced Python Backend Developer Engineer specializing in AWS Lambda, to work on a hybrid basis in London, requiring 2-3 days onsite each week. The role involves enhancing customer experiences, collaborating in cross-functional teams, and developing Back End systems. Cand ...

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 Backend Engineer AI Sports Analytics

Explore Group is partnering with a scaling start-up to hire an experienced Python Developer in Greater London. This role involves designing and building innovative products, shaping architecture, and contributing to technical decisions. The ideal candidate has over 4 years of experience in software development, ...

Principal Backend Engineer — Python, Data & AI Platforms

Publicis Groupe is seeking a Principal Backend Engineer to lead backend architecture and data solutions for the OneSuite platform. The ideal candidate will have extensive experience in Python, AWS serverless technologies, and Databricks. This role focuses on ensuring robust data governance, architecture, and men ...

Senior Python Engineer Insurance Pricing Platform (Hybrid)

Travelers Europe is seeking a Software Engineer in Greater London to enhance the hx Renew platform, a pricing decision intelligence tool. The role involves collaboration, mentoring junior engineers, and addressing complex engineering challenges. Successful candidates will bring strong programming skills, particu ...

Remote Python/Django Engineer — APIs & Data Pipelines

Digis Corp is seeking an experienced Python/Django engineer to join their remote engineering team. The role will involve collaborating closely with product managers and other engineers to develop APIs and data pipelines for property operations software primarily serving the local government and social housing se ...

Production AI Engineer on Azure | Python & MLOps

LegalAndGeneral is seeking an AI Engineer to join their collaborative team in City Of London. The role involves designing and building AI and machine learning solutions on Azure, developing Python services, and implementing generative AI initiatives. Ideal candidates will have hands-on experience with AI in prod ...

Senior Python Backend Engineer – GCP & FastAPI, Hybrid

Client Server is seeking a Python Software Engineer / Developer to join their team in Central London with the option for hybrid work. This role offers a competitive salary of up to £100k, joining a well-funded FinTech start-up that is focused on enhancing its core banking platform. The ideal candidate will have ...

Senior Quant Platform Engineer – Python & Trading Systems

Harrington Starr is seeking a Senior Engineering Technologist to enhance their core analytics platform for trading. This role involves designing and building trading-critical systems, ensuring reliability and performance, while collaborating with traders and quants. Candidates should have over 5 years of softwar ...

Python Backend Engineer AI Driven Trading Platform

Client Server is seeking a Python Software Engineer to design and develop scalable backend trading systems in London. This role involves developing APIs, leveraging data-driven systems, and implementing AI-enabled workflows using LLMs. Applicants should have a degree in Computer Science or a related field, comme ...

Python Backend Developer Engineer AWS Lambda London

Python Backend Developer Engineer AWS Lambda London London/Hybrid 2-3 days onsite, United Kingdom - £450 per day UMBRELLA only inside A leading IT Consultancy is seeking a Python Backend Developer Engineer AWS Lambda on a contract basis. You will be needed to work on ...

Senior Python Engineer HealthTech Impact (Hybrid/Remote)

Tech4 is seeking a Senior Python Developer to design, implement, and maintain software systems with a focus on health tech. This hybrid role will be based in the Greater London area, offering a salary ranging from £68,000 to £70,000 plus excellent benefits. Candidates must have deep knowledge of Python, AWS, and ...

High Throughput C++/Python Trading Systems Engineer

A financial technology company in Greater London is seeking a C++ and Python developer. Join their middle-office team to work on trade reconciliation, back-testing frameworks, and trading monitoring systems. The role involves writing high-performance code and requires skills in C++ and Python, as well as knowled ...

Senior Python Engineer – Global FinTech Backend (Hybrid)

Grid Dynamics Holdings is looking for experienced engineers in the Greater London area. The successful candidate will be primarily a Python developer with a strong background in developing global-scale software systems for financial institutions. Responsibilities include building complex systems, developing back ...

Remote Senior Backend Engineer Python, Fintech Data

Zepz is looking for a Senior Backend Software Engineer to join their Reconciliation Engineering team in the UK. Your expertise in Python and data models will be essential for automating processes and resolving data discrepancies. You’ll work collaboratively with Finance and Data Operations teams to implement cri ...

ETF Platform Engineer — Python & Front Office Trading

Talan Group is seeking a candidate for a position focusing on Front Office Trading production projects within the ETF market in London. The role involves developing and implementing trading tools, enhancing existing production support tools, and requires a strong background in IT development, particularly in Pyt ...

Hybrid VP: Full Stack Engineer (Kotlin & Python)

Citibank (Switzerland) AG is seeking a Full Stack Engineer (Kotlin and/or Python) in Greater London. This VP-level role involves designing and developing cutting-edge financial software solutions while collaborating closely with business stakeholders. Candidates should have strong backend experience along with k ...

Front Office Python Engineer — Trading Tools & Impact

Hunter Bond is seeking a Python Engineer to join their leading global hedge fund in Greater London. This hands-on, front-office role involves working directly with Portfolio Managers and Analysts to design and maintain high-performance trading infrastructure. The ideal candidate will have a degree in a relevant ...

Python Backend Engineer – Front Office Trading Platform

Apex Systems is seeking a skilled backend developer to design and implement Python solutions within the structured Notes domain. This role involves close collaboration with Quants, Sales, and Trading to ensure clean API integration and support for crucial systems. Ideal candidates will have 5+ years in a front o ...

Python & React Data Engineer — Databricks, SQL & Dashboards

DNS Info Ltd is looking for a skilled Python + React + SQL + Databricks developer to combine backend data engineering with frontend application development. This role involves building APIs, developing ETL pipelines, and creating responsive UIs. Candidates should possess strong coding skills in Python, React.js, ...

Principal Backend Engineer Scale & Security (Python/AWS)

Oliver Bernard is looking for a Principal Software Engineer to join a fast-growing Series A AI/fintech company in London. This role involves significant ownership of core backend systems, focusing on design, scaling, and compliance for sensitive financial data. Candidates should have over 8 years of experience i ...

Remote Python Engineer Enterprise Asset & Data Platform

Alexander Ash Consulting is looking for a Python Engineer to support the automation initiatives of an asset manager. The role involves building applications and data platforms, focusing on enterprise production-grade applications. Candidates should have over 4 years of experience in Python development within fin ...

Python Engineer – Up to £180,000 + Bonus + Benefits

Up to £180,000 + Bonus + Full Benefits The Opportunity Join a leading global hedge fund where technology sits at the core of trading strategy and performance. As a Python Engineer, you’ll work directly with Portfolio Managers, Quants, and Analysts to build high-performance tools a ...

Senior Backend Engineer (Python/Go) – Greenfield API

NearTech Search is seeking a Senior Back End Developer (Python) in London with a hybrid work model. You will lead the development of a new data platform, define architecture, and design scalable backend systems. The role offers a competitive salary of £100,000 – £115,000, plus bonuses, private healthcare, and ca ...

Backend Python Engineer — High Impact FinTech (Hybrid)

Glocomms is seeking a Backend Software Engineer in London to design and maintain secure, scalable backend systems critical to financial offerings. This hybrid role demands 4-5 years of software engineering experience, proficiency in Python/Django or Go, and a strong understanding of relational databases. The pos ...

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 Python Platform Engineer for ML Toolchain

King is looking for a Senior Platform Engineer (Python focus) to join its ML Toolchain team in Greater London. This role involves building Python services and APIs for the internal platform that supports machine learning at scale. Candidates should have strong backend engineering skills in Python, experience wit ...

Senior Python Backend Engineer | Hybrid, APIs & Growth

A dynamic tech scale-up in England is looking for Mid and Senior Python Developers to join its back-end team. You will implement scalable solutions, design REST APIs, and ensure code quality in a collaborative setting. This full-time role offers a competitive salary of £60,000 - £80,000, hybrid working options, ...

Senior Python Backend Engineer — AI Forward & Scalable

A leading retail company in London seeks a Software Development Engineer III to drive high-quality backend service deliveries. This role combines end-to-end product ownership while integrating deeply with existing systems. Candidates should have extensive experience in Python, Fast API, and cloud technologies. Y ...

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 ...

Distributed Python & Kubernetes Data AI/ML Engineer

A leading tech firm in London seeks a Python and Kubernetes Software Engineer for a role emphasizing collaboration on data analytics and MLOps solutions. You will utilize open-source tools and contribute to both public and private cloud solutions. Ideal candidates have a technical background in software delivery ...

Platform Automation Engineer Low Latency Infra, Python

A leading systematic trading firm in London is seeking a Platform Engineer to enhance their infrastructure through automation. You will collaborate with a global team, using cutting-edge technologies and practices in a fast-paced environment. The ideal candidate has a degree in Engineering or Computer Science, a ...

Python Automation Engineer — Low Code, n8n & AI

A leading professional services firm in Central London is seeking a Low Code Software Engineer to innovate their automation journey. You will design intelligent workflows using Python and n8n, integrating core business systems and embedding AI agents via Microsoft Azure. Ideal candidates have 2–5 years of experi ...

Senior Python Backend Engineer — Fast, Scalable Delivery

A leading retail company in Greater London is looking for a Software Development Engineer III to take on a senior engineering role. You'll be responsible for shipping backend services and working closely with front end and data science teams to deliver exceptional customer outcomes. The ideal candidate has a str ...

Senior Python Backend Engineer — Front Office Platform

A leading financial services recruitment agency is seeking an experienced Python Engineer to contribute to a front office-facing platform within a tier-one investment bank. This role involves building backend services in Python, working on data-intensive workflows, and improving system design. Candidates should ...

Front Office Commodities Tech Engineer (Python/Athena)

A leading global financial services firm is seeking a Front Office Software Engineer to enhance and deliver technology products for Precious Metals and Agriculture trading. The successful candidate will design and maintain trading applications, collaborate with diverse teams, and apply deep technical expertise. ...

Senior Python Engineer, Cloud Native AWS & Serverless

A modern financial services firm is looking for a Senior Python Engineer to join their team in the City of London. You will help redesign their technology stack to be cloud-native on AWS, focusing on Python-based services. The ideal candidate should possess solid experience in Python and database technologies, a ...

Senior Python AI Engineer — ML, Infrastructure & Deployment

A leading global online food delivery marketplace is looking for a Senior Engineer to join their Enterprise AI team. In this dynamic role, you will design and deploy AI-powered solutions, optimize data pipelines, and lead technical projects. The ideal candidate will have experience with cloud platforms, strong P ...

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