Software Engineer Python Java Data Jobs in London, UK

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Spacecraft Systems Engineer

Senior Spacecraft Systems Engineer Location: London We’re working with a growing space engineering organisation delivering complex spacecraft missions across commercial and institutional programmes. They’re looking for a Senior Sp ...

Hedge fund Operations Analyst Python coding 4&1 wfh model

Hedge fund Operations Analyst - Python coding - 4&1 wfh model A global Multi Bn alternative HF, with a focus on derivatives and volatility strategies are looking to hire a Middle office analyst to join their high performing London team. This opport ...

Hedge fund Operations Analyst Python coding 4&1 wfh model

Hedge fund Operations Analyst - Python coding - 4&1 wfh model A global Multi Bn alternative HF, with a focus on derivatives and volatility strategies are looking to hire a Middle office analyst to join their high performing London team. This opportunity sits at the ...

Hedge fund Operations Analyst Python coding 4&1 wfh model

Hedge fund Operations Analyst - Python coding - 4&1 wfh model A global Multi Bn alternative HF, with a focus on derivatives and volatility strategies are looking to hire a Middle office analyst to join their high performing London team. This opportunity sits at the ...

Hedge fund Operations Analyst Python coding 4&1 wfh model

Hedge fund Operations Analyst - Python coding - 4&1 wfh model A global Multi Bn alternative HF, with a focus on derivatives and volatility strategies are looking to hire a Middle office analyst to join their high performing London team. This opportunity sits at the ...

IT Security Engineer

About Us Our mission is simple: we want to set people free to do meaningful work. People love our software—and it's clear that people love working here too. We've been recognized as a Best Company to Work For, and we're proud of our team for receiving awards for workplace effectiveness ...

Cloud Security Engineer

Cloud Security Engineer The successful candidate will be a subject matter expert with hands‑on experience in a wide range of cloud technologies, tools and methodologies. The role is suited for an experienced Cloud Engineer with proven understanding in enterprise security and will focus on buildin ...

Senior Data Analyst

Your role in our mission We are looking for an exceptional Senior Data Analyst to be a driving force within our Enterprise Data Hub. Reporting to the Lead Enterprise Data Analyst, you will move beyond reactive reporting to become a performance engineer for Salary Finance, helping us accelerate ou ...

Applied AI ML Lead LLM Suite Engineering

Build what’s next in applied AI at JPMorganChase - where your work shapes how teams use intelligent systems at scale. You’ll lead hands-on engineering for agentic and GenAI capabilities that power the LLM Suite platform. This role offers a mix of deep technical problem-solving, architecture ownership, and col ...

Applied AI ML Lead LLM Suite Engineering

Build what’s next in applied AI at JPMorganChase - where your work shapes how teams use intelligent systems at scale. You’ll lead hands-on engineering for agentic and GenAI capabilities that power the LLM Suite platform. This role offers a mix of deep technical problem-solving, architecture ownership, and col ...

Networking Specialist

Networking Specialist Location: London (Hybrid Working Available) Industry: Global Financial Services / Institutional Asset Management Ncounter is supporting a global financial services organization as they hire a senior Networking Specialist into a business‑critical infrastructur ...

Principle Machine Learning Engineer

Principle Machine Learning Engineer Contract Pay DOE Hybrid 2x a week on site Most sports data is reactive - stats after the moment’s gone. This role is about building systems that generate ...

Staff Engineer

Who are we?Smarkets: Predicting the Future of BettingSmarkets runs one of the world’s most sophisticated prediction markets, handling over £29 billion in volume since 2010 and engaging 200,000+ traders globally. We’re a technology company that happens to revolutionise bettin ...

Staff Engineer

Who are we?Smarkets: Predicting the Future of BettingSmarkets runs one of the world’s most sophisticated prediction markets, handling over £29 billion in volume since 2010 and engaging 200,000+ traders globally. We’re a technology company that happens to revolutionise bettin ...

Staff Engineer

Who are we? Smarkets: Predicting the Future of Betting Smarkets runs one of the world’s most sophisticated prediction markets, handling over £29 billion in volume since 2010 and engaging 200,000+ traders globally. We’re a technology company that happens to revolutionise betting - ...

Senior Gen AI ML Engineer: Audio & Video Synthesis

A global media-tech leader in the UK is seeking a Gen AI Researcher for Audio to develop next-generation voice synthesis models. You will work on creating expressive, natural-sounding speech from text, while collaborating with cross-functional teams. Candidates should have over 5 years of experience in software ...

Senior Front Office Rates RAD Developer

JPMorganChase is seeking a Senior RAD Developer to join their Rates development team in Greater London. This hands-on position focuses on building and enhancing proprietary trading tools, collaborating closely with quant researchers and technology teams. The ideal candidate will have a minimum of 5 years' experi ...

Senior Trading Systems Engineer — End to End Trade Stack

OCR Alpha is seeking a Senior Trading Systems Developer to lead the technological framework in their London office. This role requires strong proficiency in C# and/or Python and a minimum of 5 years in software development with a clear ownership trajectory. You will work directly with traders, managing the entir ...

Senior Engineering Manager: AI Driven Platform Leadership

Plentific is hiring a Senior Engineering Manager to lead their product engineering organization in London. The successful candidate will manage team leads across multiple disciplines, ensuring technical quality and fostering exceptional engineering talent. Key responsibilities include championing development pra ...

Senior Electrical Engineer

At Bryden Wood we are on a mission to accelerate decarbonisation, deploy new technologies and integrate design and delivery for critical infrastructure. We are inventive thinkers, designers, engineers, and technical experts who combine creativity with deep expertise. By integrating innovation and experience, ...

Computational Electromagnetics Engineer — HPC Solvers

Metrea is seeking a full-time Computational Electromagnetics Engineer to develop and run electromagnetic solvers, primarily for applications in Aerospace and Defence. This position requires a strong background in scientific computing with experience in C/C++ and Python, and a deep understanding of Maxwell's equa ...

Senior Trading Systems Engineer Hybrid, Linux & SQL

A leading trading firm in the UK is seeking an experienced Trading Application Engineer. This role requires proficiency in scripting languages such as Python and Bash, strong problem-solving skills, and familiarity with Linux environments. The position is hybrid, offering a competitive compensation up to GBP150, ...

AI Engineer Production Grade LLM Solutions (London)

A global benefits leader is seeking an AI Engineer to develop and implement production-grade AI solutions that address real-world challenges. The ideal candidate will manage cloud infrastructure, collaborate across teams, and mentor peers, contributing to product improvements and internal tooling. Proficiency in ...

Network Automation Engineer: Scalable, Self Service Infra

A leading quantitative finance firm in London is seeking a Network Automation Engineer to transform network delivery across their global infrastructure. You will design and build automation frameworks, tooling, and APIs that make networking scalable and efficient. The ideal candidate will have a solid understand ...

Senior Full Stack AI Engineer Decision Intelligence

A technology company in Greater London is seeking a talented full-stack engineer to join their team focused on developing AI-driven products. The role involves collaborating with stakeholders, building scalable solutions using Python and TypeScript, and leading technical delivery on customer-facing projects. Can ...

Senior ML Engineer — Production AI for Retail

A major retail group in the UK seeks a Senior Machine Learning Engineer to develop and deploy scalable AI solutions, enhancing customer experiences across its brands. The ideal candidate will possess strong Python skills and a solid understanding of machine learning techniques, contributing to a collaborative en ...

Reinforcement Learning Research Engineer: Scalable, Safe AI

A public benefit corporation in London is looking for a Research Engineer to advance reinforcement learning AI capabilities. This role demands collaboration with diverse teams and involves both research and engineering at the forefront of AI development. The ideal candidate should have a Bachelor's degree and st ...

Cloud Security Research Engineer: Innovate Detection Systems

A leading cloud security provider in Greater London is seeking a Cloud Security Research Engineer to safeguard customer environments from cyber threats. In this pivotal role, you'll innovate detection mechanisms and conduct deep analyses of CSP APIs. Ideal candidates will have advanced proficiency in Python and ...

Senior Full Stack Engineer, Promotions Platform — Drive Growth

A leading global delivery platform is looking for a Senior Full-Stack Engineer to join the Promotions team in London. In this role, you'll build scalable systems and user-facing tools to enhance how merchants grow through promotions. You will work with technologies like React, Kotlin, and Python, driving cross-f ...

Early Career CAD Tools Optimisation Engineer

A leading technology company in Greater London seeks a CAD Engineer to improve chip design automation. The ideal candidate will have a degree in Electrical Engineering or a related field, experience with RTL simulation tools, and skills in scripting languages like Python. This role involves working with vendor a ...

Low Latency C++ Engineer for Scalable FinTech Platform

Hunter Bond is seeking a talented C++ Engineer to join their London team. This role involves designing and developing high-performance systems using C++. You'll work in a fast-moving environment, developing next-generation platforms and integrating microservices. The ideal candidate will have strong hands-on exp ...

Detection Engineer: Cloud Security & Incident Response

A leading telehealth platform is seeking a Security Engineer with expertise in detection as code. You'll own the detection and security operations, writing rules, building telemetry pipelines, and responding to cloud-native threats. Strong programming skills in Python or TypeScript are essential, along with expe ...

ML Research Engineer: Next Gen Hardware & Generative AI

A pioneering deep-tech organisation in the UK seeks a Machine Learning Research Engineer to develop and benchmark ML algorithms on novel computing hardware. The role involves working on generative models and translating complex problems into ML solutions. The ideal candidate has strong experience in ML algorithm ...

Equity Portfolio Engineer for ETFs & Index Investing

A leading investment firm in London is seeking an Equity Portfolio Manager/Engineer to manage index equity portfolios, focusing on trade implementation and client flow management. This role requires strong financial product knowledge, particularly in Equities and Fixed Income. The ideal candidate will possess an ...

Portfolio Trading Tool Engineer AVP (Hybrid)

A leading global financial institution is seeking a motivated trading tool developer to enhance trading operations. This position requires collaboration with traders and a solid foundation in Python, along with experience in containerized deployment and CI/CD tooling. The role offers a hybrid work model, competi ...

Remote Detection Engineer: Cloud Security & Automation

A prominent Telehealth platform is seeking a Security Engineer specializing in Detection & Response. You will lead the detection and security operations, crafting detection rules and building telemetry pipelines. Responsibilities include threat modeling, contributing to security across products, and shaping the ...

Cloud Integration Engineer — Consulting & AI/ML Infra

A leading technology firm is seeking an Integration Engineer to work with strategic customers on infrastructure projects. This role requires strong project management and cloud solutions expertise, with a focus on customer success. Responsibilities include managing successful cloud solution implementations, prop ...

Senior Site Reliability Engineer Scale & Observability Lead

A leading IT consulting firm in London is seeking a Senior Site Reliability Engineer to play a key role in operational support while implementing a variety of AWS services. You will monitor systems, troubleshoot issues, and ensure a strong performance and scalability mindset. The ideal candidate will possess str ...

Senior ML Engineer: AI Systems & Scalable Models

A leading travel management company is seeking a Machine Learning Engineer III to push the boundaries of AI technology. You will design and optimize intelligent systems to solve real-world problems using machine learning and deep learning techniques. The role requires strong coding skills in Python, and experien ...

AI Engineer Equity & Impact at London AI Startup

An innovative AI startup in London seeks an AI Engineer to drive the development of groundbreaking algorithms that enhance patent generation. Joining a stellar team backed by major investors, you will lead the creation of evaluation pipelines and collaborate directly with the CRO to ensure efficient deployment o ...

Threat Driven InfoSec Engineer: Detection & Defense

A technology firm in Greater London is seeking an Information Security Engineer responsible for securing their infrastructure globally. The ideal candidate should have over 3 years of security experience across major platforms and proficiency in scripting languages like Python. Key responsibilities include build ...

Senior French Prompt Engineer for Clinical AI Remote

A consulting firm specializing in AI solutions is seeking a Senior French-speaking Prompt Engineer / Applied Research Scientist. This remote role focuses on designing and optimizing prompts for AI-powered clinical documentation systems. Candidates should have over 5 years of experience in prompt engineering, str ...

Senior Network Observability Engineer — Hybrid & Impactful

A cutting-edge tech company is seeking a Senior Engineer for Network Observability to join their team. You will design and maintain systems that monitor network performance, using tools like Prometheus and Grafana. The ideal candidate has a strong background in Python, experience with Kubernetes, and is passiona ...

AI Engineer GenAI Lab for Editorial Voice

A leading global media company seeks a dedicated engineer for their AI Lab in London. The role involves fine-tuning large language models, managing datasets, and evaluating AI-generated content's editorial alignment. Candidates should have over 3 years of experience with LLMs or NLP pipelines and strong Python s ...

Remote AI Engineer: GenAI, RAG & Tooling Expert

A leading recruitment agency is seeking an experienced AI Engineer to develop sophisticated AI solutions with a primary focus on AWS and generative AI technologies. The ideal candidate will have advanced skills in Python and experience with Large Language Models like Claude and GPT-4. This position is fully remo ...

Applied AI Engineer — Production Ready for Public Services

A technology consultancy is seeking an AI Engineer to design, build, and operate AI-powered systems that enhance public services. The successful candidate will work within multidisciplinary teams, applying modern AI models to real-world use cases, improving decision-making, and ensuring the ethical integration o ...

Low Latency Network DevOps Engineer

A diversified trading firm in Greater London is seeking a skilled DevOps Engineer to automate processes within their network team. You will design and implement CI/CD pipelines, develop tools for automation, and ensure security compliance. The ideal candidate should possess at least 5 years of relevant experienc ...

Senior ML Engineer: Agentic AI & LLM Systems

A leading technology firm in the UK is seeking a Senior Machine Learning Engineer II to enhance document intelligence and automate workflows. You will build crucial systems, collaborate with teams, and contribute to AI-driven products. Ideal candidates have over 8 years of experience in machine learning, profici ...

Solutions Engineer, AI Go Platform — Deploy & Win

A cutting-edge AI solutions provider in Greater London is seeking a Solutions Engineer to join their go-to-market team. You will engage with customers to run technical discovery and lead proof of concepts (POCs) that drive value. The ideal candidate has strong experience in delivering Large Language Model projec ...

Lead Computer Vision Engineer Remote, Sports Analytics

A dynamic AI start-up in London is seeking a Lead Computer Vision Engineer to advance sports analytics through innovative computer vision technology. You will lead projects, mentor junior engineers, and collaborate with cross-functional teams. The ideal candidate has extensive deep learning expertise and is prof ...

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