Lead Software Engineer Python Java Jobs in London, UK

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Strategic Forward Deployed Engineer: Build Production Solutions

A leading technology partner in London is seeking a forward deployed engineer to ensure technical success across enterprise customers. In this customer-facing role, you will design and build production-grade systems and directly influence decision-making. Strong software engineering skills, particularly in Pytho ...

Senior Backend Engineer Scale Impact, Stock Options

A leading financial technology firm in Greater London seeks a Senior Backend Engineer to enhance their product development. The ideal candidate will possess over 5 years of experience in software engineering and be skilled in Python and related technologies. Responsibilities include designing scalable systems an ...

Index Distribution Engineer Cloud Native Data Platforms

A leading financial data provider is seeking a Junior Software Engineer to join its team in London. The successful candidate will develop and maintain index distribution platforms, ensuring seamless delivery of products to clients. Key technologies include Python, Angular, and AWS. Ideal for individuals who are ...

Senior AI Research Engineer — Edge AI & Multimodal Vision

A leading AI solutions provider is seeking a Senior AI Research Engineer in London. The role involves developing state-of-the-art AI products by improving training algorithms and multimodal LLMs. Candidates should have over 5 years of software engineering experience with proficiency in Python, and strong experti ...

Senior Backend Engineer Greenfield Real Time Hospitality

A global technology company is seeking a talented Backend Software Engineer to join their team based in London. The successful candidate will design and develop high-performance backend systems for the hospitality-tech industry. This is a great opportunity to work on greenfield projects and collaborate with cros ...

Full Stack Engineer — Platform Performance

A leading freelancing platform is looking for a Full Stack Software Engineer in London. In this role, you will work across the stack to optimise performance through frontend and backend technologies. Candidates should have 2-4 years of experience, strong skills in Angular and TypeScript, as well as familiarity w ...

Senior Full Stack Engineer for AI Platform & Data Viz

Retelligence in Greater London seeks a motivated Full Stack Engineer to join a senior team building advanced AI platforms. The role encompasses managing the entire feature lifecycle, from backend services to interactive frontend experiences. Candidates should excel in Python and TypeScript with a strong grasp of ...

Senior Neurosymbolic AI Platform Engineer

UnlikelyAI is seeking a Senior Software Engineer in Greater London to join their team in developing innovative AI solutions. This role requires deep coding skills in Python and experience with cloud infrastructure, prioritizing production-quality engineering. Candidates will contribute to building a public API a ...

Founding Research Engineer Ontology & Knowledge Graphs

60x.ai is seeking a software engineer to work on the AI Brain platform in Greater London. The role involves designing hierarchical ontology generation, developing per-tenant configuration mechanisms, and creating evaluation pipelines for generated ontologies. Candidates should have expertise in Rust and Python, ...

Senior Trading Systems Engineer – Real Time, Low Latency

A leading financial technology company is seeking a software engineer to join their Electronic Trading team. This role involves developing high-performance distributed systems, working with C++ and Python, and partnering with engineering and product teams. Candidates should have a degree in a related field and e ...

AI Fullstack Engineer: Build LLM‑Powered Agents

A leading logistics software provider in Greater London is seeking an AI (Fullstack) Engineer to evolve their logistics optimization platform. This role involves designing and building LLM-powered agents, developing orchestration patterns, and collaborating with product teams to create reliable AI features. The ...

Senior Computer Vision & Multimodal AI Engineer

A technology firm is hiring a Senior Software Engineer specializing in Computer Vision and Multimodal AI. The role involves developing pipelines that transform visual data into structured insights and requires strong Python skills, deep learning expertise, and the ability to collaborate across teams. Candidates ...

Applied AI Software Engineer: Build Scalable AI Solutions

A global quantitative finance firm in London is seeking a Software Engineer to join a new team focused on AI applications. Candidates should have strong programming skills, preferably in Python, and a passion for problem-solving. The role involves building scalable AI-driven products, collaborating with diverse ...

Senior Infrastructure Engineer AWS, CI/CD, HealthTech

A healthcare technology firm in Greater London is seeking a Sr. Software Engineer to manage and enhance their AWS infrastructure. The role involves overseeing CI/CD pipelines, optimizing ETL pipelines, and ensuring system reliability for healthcare solutions. The ideal candidate will have strong expertise in C++ ...

Senior Software Engineer (Django) – Scale a Global Platform

Stars Arena is seeking a Senior Software Engineer in Greater London to develop and enhance their investment reporting platform, Serpentine. This web application, built with Python and Django, manages large and multilingual client websites. The role involves contributing to the design, development, and maintenanc ...

Real Time Energy ML Engineer for Emissions Impact

Linkedin is seeking a Machine Learning Engineer based in Greater London to work on real-time energy optimisation using Python and machine learning. This full-time role involves taking ownership of technical challenges and building software aimed at reducing emissions. Ideal candidates should be proficient in pro ...

Senior AI & Data Consultant | Full Stack Engineer

Data Organisation Demonstratable interest and awareness in emerging technologies Hands-on coding experience with SQL, Python or Scala What We Look For We are looking for highly motivated individuals who are passionate about Data and Analytics and want to assist... </ ...

End to End ML Engineer: Deploy & Monitor Live Systems

Free-Work UK is hiring a Machine Learning Engineer to design and maintain live operational systems. In this role, you will handle critical machine learning applications, ensuring reliability and scalability throughout the ML lifecycle. Candidates should have deployment experience, a strong software engineering b ...

Senior ML Engineer — Real Time AI Pricing (Remote)

Hopper is looking for a Software Engineer to join their Fintech Foundation team in Greater London. This role involves designing and implementing machine learning systems that power Hopper's pricing engine, directly impacting revenue and customer experience. The ideal candidate will have 5+ years of experience, p ...

Applied AI Engineer II – ML, GenAI on AWS

JPMorgan Chase is seeking a Software Engineer III to contribute to the International Consumer Bank by developing advanced machine learning models and overseeing generative AI application deployment. The role requires an advanced degree in a STEM field and proven experience in AI/ML. Expertise in Python, TensorFl ...

Senior Consultant, AI & Data, WAM, FS in London Ernst & Young

Data Organisation Demonstratable interest and awareness in emerging technologies Hands-on coding experience with SQL, Python or Scala What We Look For We are looking for highly motivated individuals who are passionate about Data and Analytics and want to assist... </ ...

SDE II: Navigation & Traffic Backend

A location technology platform in Greater London is looking for a Mid-Senior Software Development Engineer II in Navigation Traffic. In this role, you will balance rapid development of navigation solutions with system reliability as demand scales. Ideal candidates will have over 5 years of experience in backend ...

Senior Distributed Workflow Orchestration Engineer

Bloomberg in London is looking for a Senior Software Engineer - Workflow Orchestration. The role involves developing client-facing APIs, working on large-scale distributed systems, and contributing to product evolution. Candidates should have proficiency in languages like C++ or Python, strong experience with as ...

Senior Platform Engineer, Chem Bio AI Security London

The AI Security Institute in London is seeking a Senior Engineer to join their Chem Bio team. The successful candidate will design and build reliable systems for varied AI-related research projects, primarily using Python. Strong experience in scalable software, infrastructure, and AI systems is required. The po ...

Senior Software Engineer — Build the Next Gen Travel Platform

A leading travel management company is seeking a Senior Software Engineer to work on their next-generation platform for business travel. The ideal candidate will have extensive experience in product development using Python/Django and React, with a strong focus on quality and simplicity. This position requires a ...

Senior Neurosymbolic AI Platform Engineer

UnlikelyAI is seeking a Senior Software Engineer in Greater London to join their team in developing innovative AI solutions. This role requires deep coding skills in Python and experience with cloud infrastructure, prioritizing production-quality engineering. Candidates will contribute to building a public API a ...

Senior Trading Systems Engineer – Real Time, Low Latency

A leading financial technology company is seeking a software engineer to join their Electronic Trading team. This role involves developing high-performance distributed systems, working with C++ and Python, and partnering with engineering and product teams. Candidates should have a degree in a related field and e ...

Real Time Energy ML Engineer for Emissions Impact

Linkedin is seeking a Machine Learning Engineer based in Greater London to work on real-time energy optimisation using Python and machine learning. This full-time role involves taking ownership of technical challenges and building software aimed at reducing emissions. Ideal candidates should be proficient in pro ...

Senior Full Stack Engineer for AI Platform & Data Viz

Retelligence in Greater London seeks a motivated Full Stack Engineer to join a senior team building advanced AI platforms. The role encompasses managing the entire feature lifecycle, from backend services to interactive frontend experiences. Candidates should excel in Python and TypeScript with a strong grasp of ...

Senior AI Platform Engineer for Enterprise scale Impact

Writer is seeking a Senior Software Engineer to empower enterprises in adopting AI-powered solutions. Your role will involve making architectural decisions and developing secure, scalable systems that enable generative AI applications. This role requires 5+ years of Python experience and expertise in deploying A ...

Full Stack Engineer — Platform Performance

A leading freelancing platform is looking for a Full Stack Software Engineer in London. In this role, you will work across the stack to optimise performance through frontend and backend technologies. Candidates should have 2-4 years of experience, strong skills in Angular and TypeScript, as well as familiarity w ...

Maritime Fleet Performance Engineer for Vessel Efficiency

A leading logistics provider in Greater London is seeking a Fleet Performance Engineer to optimize operational efficiency. The role involves monitoring vessel performance, improving software solutions, and managing emissions compliance. Candidates should have an M.S.C. or PhD degree in a relevant field, fluent E ...

Forward Deployed AI Engineer for Production Systems

Immersum is seeking a Forward Deployed AI Engineer in Greater London to design, build, and deliver cutting-edge AI solutions for high-profile clients in capital markets and investment management. The role demands expertise in Python and cloud architecture, with responsibilities including developing AI-driven sys ...

AI Engineer Remote, Growth & SC Eligible

A leading technology solutions provider is seeking an AI Engineer in Greater London. This role involves designing and deploying AI applications for clients across various industries, particularly in government sectors. The candidate should possess at least 3 years of software engineering experience and be profic ...

Post Quantum Cryptographic Testing & Automation Engineer

Post-Quantum Cryptographic Testing & Automation Engineer Post-Quantum Cryptographic Testing & Automation Engineer 1 day ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. GlaxoSmithKline (GSK) is a science-led global healthcare c ...

Post Quantum Cryptographic Testing & Automation Engineer

Post-Quantum Cryptographic Testing & Automation Engineer Post-Quantum Cryptographic Testing & Automation Engineer 1 day ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. GlaxoSmithKline (GSK) is a science-led global healthcare c ...

Manager Software Engineering (Dynamics 365)

You may choose to display a cookie banner on the external site. You must specify the message in the cookie banner and may add a link to a relevant policy. If you are unfamiliar with these requirements, please seek the advice of legal counsel.This hybrid approach enables us to build a collaborative and innovative ...

Senior Cloud Security Engineer

Job Description We are searching for an experienced Senior Cloud Infrastructure Security Engineer with an unquenchable thirst for automation and a passion for DevSecOps methodology. You'll be working with a team of other engineers to build out and secure our expanding cloud infrastructure in AWS. ...

Forward Deployed Engineer

We build AI technology for the metals industries. Our products work reliably in high-volume production environments 24/7, making billions of dollars worth of decisions. Because we work at the intersection of metals industries and AI, we solve problems involving manufacturing operations, physics and ...

Developer Golang

Client: Largest American Credit Card Company Apply (by clicking the relevant button) after checking through all the related job information below.Location: Burgess Hill 3 days/week Years of Exp: 6-9 years Skills: Go, Java, Git, REST, Jenkins, NoSQL, Postgres/ql £40-£ ...

Intermediate Data Engineer

IDEXX is looking for a Intermediate Data Engineer to join the Veterinary Software team in London! This is an exciting opportunity for a a data engineer looking to expand their technical leadership skills and make an impact in a meaningful industry. This role will be hybrid 2 days onsite in our Wimbl ...

Senior Quality Engineering Manager (Automation & Testing)

PlayStation in London is looking for a Senior Software Engineering Manager focused on Quality Engineering. You will lead a distributed team to drive innovative testing technology, ensuring high-quality software delivery across various platforms. The role emphasizes team development, performance monitoring, and i ...

Engineering Manager Public Cloud (Python & Go)

A leading open source software firm is seeking an Engineering Manager to lead cloud optimization efforts with major partners. You will build and mentor a talented team, focusing on delivering high-quality software in Python and Golang. Your role involves setting clear expectations, promoting a collaborative cult ...

Lead Data Engineer (Databricks, PySpark)

We're looking for a Lead Data Engineer (Databricks, PySpark) to join our team in London, UK in a hybrid working mode. In this role, you will help shape and deliver next-generation data platforms. You will be hands‑on in developing, implementing and optimizing scalable ETL workflows and data ...

Internal Consulting Systems Engineer

Internal Consulting Systems EngineerOverviewWe are seeking an Internal Consulting Systems Engineer to support, evolve, and automate solutions and tools that optimize pre-sales department workflows. This role blends cybersecurity expertise, systems engineering, and software developm ...

Senior Backend Engineer — Global KYC & Onboarding

hackajob is seeking a Senior Backend Engineer to join their Global KYC and Onboarding squad in Greater London. The role involves providing technical leadership, designing scalable backend services using Java and Spring Boot, and mentoring junior engineers. With 10+ years of experience, you will lead technical in ...

Lead FX Pricing & Trading Systems Engineer

Citibank (Switzerland) AG is seeking a highly skilled Java Engineer to lead technology initiatives in Foreign Exchange (FX) systems. This full-time role based in Greater London involves hands-on coding, team management, and collaboration across FX Technology to implement innovative solutions. Key skills include ...

Observability Lead: Dynatrace & AWS Expert (Hybrid London)

BGTS International is looking for an Observability Engineer (Dynatrace) to lead the design and implementation of application performance monitoring strategies. This hybrid role in London focuses on ensuring the reliability of enterprise systems within AWS cloud environments, utilizing deep expertise in Dynatrace ...

Lead AI Platform Engineer – Backend & AI Apps

London Stock Exchange Group is seeking a Lead Engineer to drive development of secure, scalable digital products. The role entails backend and frontend system management, guiding teams, and implementing engineering best practices. Candidates should have over 5 years of experience, knowledge in Java/Kotlin, Sprin ...

Senior Full Stack Engineer | AI & Systems Architecture

Atos in Greater London is seeking a Senior Full Stack Engineer to design and build high-quality systems. In this role, you will lead complex projects, collaborate with clients, and support other engineers while remaining actively involved in development. The ideal candidate has a proven track record in full stac ...

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    Lead Software Engineer Python Java Jobs in London Job Search Guide, Trends and Insights