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Senior Product Security Engineer – Hybrid (2 days WFH)

A top financial firm in London is seeking a Senior Product Security Engineer with strong experience in securing software development. This role will focus on collaborating with IT and engineering teams to lead security processes and ensure protection across cloud and business applications. Candidates should have ...

Senior Infrastructure Engineer – Scale Global Data Systems

A leading AI recruitment service is seeking a Senior Software Engineer to architect and build backend systems for handling vast amounts of unstructured data. The ideal candidate will have extensive experience with backend development, including proficiency in PostgreSQL, Rust, and Python. This is an opportunity ...

Senior ML Engineer for Production Healthcare AI

A fast-scaling MedTech company in the UK is seeking a Senior Machine Learning Engineer to own the deployment, operation, and maintenance of ML models in production. You will collaborate with scientists and engineers to enhance AI systems for clinical use. The role requires at least 3 years of experience in produ ...

Founding Software Engineer – YC‑Backed Startup London

A YC-backed startup in London seeks a Senior Software Engineer to join their founding team. This role involves working closely with founders, shaping the product, and making key technical decisions. You'll directly impact product direction while working in a hybrid model, splitting time between the office and re ...

Emerging Markets Risk Lead – Fixed Income & Macro

A prominent financial firm in Greater London is seeking a Senior Emerging Markets Risk Manager. In this high-impact role, you will oversee risk management across Emerging Markets in Latin America, Asia, and CEEMEA, collaborating with global teams to ensure adherence to risk guidelines. Ideal candidates have over ...

Senior Data Scientist Lead High Impact AI Projects

A leading AI consultancy firm in the City of London is seeking a Senior Data Scientist to lead high-impact AI projects and mentor junior colleagues. The role requires strong Python programming skills and deep expertise in data science paradigms. You will work collaboratively within the team to deliver bespoke AI ...

Autonomy Data Engineer: Scale AI Pipelines on AWS/Databricks

A leading electric vehicle manufacturer in Greater London is seeking a Senior Software/Data Engineer to enhance their analytics data platform. This role requires extensive experience in data engineering, specifically with AWS services and Databricks. The successful candidate will develop and scale data analytics ...

Senior Product Analyst: Data Driven Experiments

A leading travel company in Greater London is seeking a Senior Product Analyst to support product teams through data-led decision making during a high demand period. The ideal candidate will shape analytical strategies for experiments, conduct A/B testing, and present insights to diverse stakeholders. Proficienc ...

Engineering Lead Player Coach for AI Driven B2B SaaS

A leading tech firm in Greater London is seeking an Engineering Lead to manage a cross-functional squad in developing complex B2B SaaS products across various domains. In this player-coach role, you will oversee 4-8 engineers, providing technical guidance and fostering their growth. Ideal candidates will have se ...

Senior ML Engineer: Production LLMs for Global Marketing

A Series A AI startup in London is seeking a Senior ML Engineer to lead the design and implementation of production ML systems that automate marketing operations for top brands. The ideal candidate will have 4-8 years of experience in machine learning, with strong Python skills and the ability to solve complex t ...

Senior Data Team Lead Growth & Incentives

A leading payments company in Greater London is looking for a Senior Data Team Lead to guide a team of analytics engineers. The role involves designing scalable solutions that impact commercial performance significantly. Candidates should exhibit strong ownership, mentoring skills, and the ability to collaborate ...

Senior AI Engineer & Data Scientist GenAI in Production

A fast-scaling RegTech startup is seeking a Senior AI Engineer to ensure the quality of AI outputs and design cutting-edge solutions. This role requires a proven record in delivering impactful ML/AI solutions and deep expertise in Python and modern frameworks like PyTorch and TensorFlow. The ideal candidate poss ...

Senior ML Engineer: Ranking & Recommendations, Own ML Infra

A fast-growing startup in Greater London seeks a Senior Machine Learning Engineer to establish the recommendations infrastructure from scratch. This role offers significant ownership, working closely with Data, Product, and Engineering teams to embed ML capabilities into the user experience. Ideal candidates hav ...

Index Product R&D Director (Quant & ESG)

A leading financial services firm in Greater London is seeking a Senior Equity Specialist to join their Factor and Quantitative Index R&D team. You will be responsible for developing quantitative factor and sustainability equity indices, maintaining code in GitHub, and researching client propositions. Candidates ...

Senior Cloud Platform Engineer AWS, Kubernetes, IaC

A leading technology solutions provider in Greater London is seeking a Senior Cloud Platform Engineer. The role demands expertise in cloud infrastructure automation and reliability, with a focus on AWS services and Kubernetes. The ideal candidate has over five years of experience in DevOps and is proficient in c ...

Index Product R&D Lead – Quant & ESG (London)

A leading financial technology firm in London is seeking a Senior Equity Specialist to join their Factor and Quantitative Index R&D team. The role involves developing quantitative and sustainability equity indices and maintaining code standards. Ideal candidates will have a strong quantitative finance background ...

Senior Full Stack Engineer: AI R&D & 3D Data Systems

Autodesk, Inc. is seeking a highly skilled Senior Full Stack Software Engineer in Greater London to support research and foundation model development. The ideal candidate will have strong programming skills in Python and experience in developing full stack applications. Responsibilities involve working with 3D d ...

Senior AI Engineer — Production Grade AI for Real World Ops

Hadean is looking for a Senior AI Engineer to join our dominAI team in London. This role involves integrating AI into production software, mentoring engineers, and collaborating with cross-functional teams. Candidates should have a degree in Computer Science or a related field, at least 3 years of experience in ...

Senior Data Platform Engineer — Hybrid, Snowflake & CI/CD

MediaSense is looking for a Senior Data Platform Engineer in London to join their Data & Insights team. This role focuses on building a modern data lakehouse on Snowflake and migrating legacy workflows. The ideal candidate will have strong Python skills, CI/CD and release management experience, and hands-on know ...

Senior DevOps Engineer Blockchain Infra & Security

A leading blockchain technology firm in London is seeking a mid-senior level DevOps Engineer to enhance and maintain our blockchain infrastructure. The ideal candidate will have significant experience in DevOps practices, programming skills in Python, GoLang, or similar, and a strong grasp of networking security ...

Senior Data Science Consultant | Driving AI & Business Impact

A dynamic consulting firm in Greater London is seeking a Senior Consultant in Data Science. This role involves delivering advanced analytics and digital product solutions while leading defined workstreams. The ideal candidate will have over 4 years of experience in data science, demonstrating strong skills in Py ...

Senior QA Engineer — Robotics & AI Automation

A robotics company in Falmouth is looking for a Senior QA Engineer to enhance testing processes for their humanoid robots. The role involves developing both automated and manual tests, collaborating with cross-functional teams, and driving quality strategy and metrics. The successful candidate will have over 4 y ...

Senior Backend Engineer – Real Time Casino Platform (Remote)

A modern betting platform is seeking a Senior Backend Engineer to join their Casino UX team. In this remote role, you will design robust backend services and RESTful APIs using Python and PostgreSQL, collaborating with a cross-functional squad to enhance the gaming experience. Candidates should have over 5 years ...

Senior Strategy & Operations Lead — Remote

A financial technology company based in Greater London is seeking a Senior Strategy & Operations Manager to join their CEO Office. This high-impact role is responsible for establishing a data-driven performance system and defining KPIs across the organization. The ideal candidate has 5–8+ years of experience in ...

Senior Data Scientist, Fraud Remote & EU Friendly

A leading insurance tech company is seeking a Senior Data Scientist (Fraud) in Greater London with expertise in fraud detection. You'll design and enhance systems that optimize accuracy and efficiency in identifying fraud. The role offers flexibility with most work done remotely and meetings once a week in the L ...

Volatility Quant Trader | Derivatives & System Development

A high-performing quantitative hedge fund in London is looking for a quant dev/trader to join their collaborative trading environment. The candidate will work between trading, research, and technology, optimizing derivatives strategies. Key responsibilities include improving trading systems, supporting trades, a ...

Senior Global Network Engineer VPN, BGP, Cloud

A major financial services firm is seeking a Senior Engineer to enhance its network infrastructure. Responsibilities include designing, deploying, and maintaining network systems, along with operational support for VPN technologies. The ideal candidate will have a Bachelor's degree in Computer Engineering and in ...

Senior ML Engineer – Medical Imaging, Hybrid (London)

A leading healthcare technology company in Greater London seeks a Senior Machine Learning Engineer to develop and deploy computer vision models on large medical imaging datasets. This role requires strong Python and PyTorch skills, experience with ONNX/TensorRT, and hands-on work with GPUs. You will parallelise ...

Senior Data Engineer – Healthcare OMOP Pipelines (Remote)

A tech-for-good startup is seeking a hands-on Senior Data Engineer to develop a healthcare data product. The ideal candidate will have experience with regulated data, strong skills in Python and SQL, and be comfortable in a startup environment. The role requires designing data models and handling sensitive data ...

Illiquid Credit Valuation Controller, Data Science

A leading global financial services firm is seeking a Valuation Controller to apply data science skills in ensuring accurate pricing across complex financial products. Join a dynamic team to deliver data-driven solutions, collaborate with senior leaders, and enhance valuation control. The ideal candidate will ha ...

Gen AI Quant Analyst, AI Core — Global Markets

A leading financial institution seeks a quant analyst for its new AI team in London. The role focuses on implementing Generative AI technologies in Global Markets while collaborating with the global quant team and senior business representatives. Ideal candidates will possess strong technical and programming ski ...

Senior Quant Researcher: Alpha Signals to Production

Alexander Chapman is looking for a Senior Quant in Greater London to develop and iterate alpha signals across equities and futures. The role requires real experience in systematic strategies and quantitative research, along with a strong command of Python. You will be responsible for working with large datasets ...

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 ...

Senior Backend Engineer Orchestration for Autonomous Tech

Jack & Jill is seeking a Senior Backend Engineer to join their innovative team, aimed at building a orchestration platform for autonomous technology deployment. This role requires significant experience with API design and backend systems, particularly in Python and FastAPI. You will have the opportunity to shap ...

Senior ML Engineer Personalisation (Hybrid/Remote)

Cleo is seeking a Senior Machine Learning Engineer to build and deploy high-impact ML solutions across their product lines. This role involves owning the end-to-end cycle of model design, experimentation, productionisation, and impact measurement. The ideal candidate will have experience in personalisation and r ...

Senior Full Stack Engineer: AI R&D & 3D Data Systems

Autodesk, Inc. is seeking a highly skilled Senior Full Stack Software Engineer in Greater London to support research and foundation model development. The ideal candidate will have strong programming skills in Python and experience in developing full stack applications. Responsibilities involve working with 3D d ...

Senior AI Engineer — Production Grade AI for Real World Ops

Hadean is looking for a Senior AI Engineer to join our dominAI team in London. This role involves integrating AI into production software, mentoring engineers, and collaborating with cross-functional teams. Candidates should have a degree in Computer Science or a related field, at least 3 years of experience in ...

Senior Data Scientist, Product Analytics Remote

Cleo is looking for a Senior / Lead Data Scientist located in the United Kingdom to join their team. This role centers on conducting in-depth analysis, driving product decisions with data insights, and collaborating across teams to elevate product strategies. We seek someone with over 5 years of quantitative ana ...

Property Catastrophe Risk Director – Research & Strategy

Gallagher Re in Greater London seeks a Senior Catastrophe Risk Expert to enhance property risk management practices. You will lead research on catastrophe models, support clients in understanding complex risks, and develop innovative solutions. A PhD in sectors like Hydrology is required alongside programming sk ...

Senior Pricing Change Architect (Hybrid)

A leading UK insurance provider is seeking a Senior Change Delivery Specialist to join their Motor team. This role involves supporting the development of pricing strategies through the implementation of changes to the Radar rating software. Candidates should have knowledge of the WTW Radar software, experience i ...

Senior Data Quality Lead Equity Corporate Actions

A major financial data provider is seeking a Senior Data Management Professional to enhance data quality and manage client relationships. In this role, you will develop and implement a data quality strategy, ensuring reliable data for equity corporate actions. Candidates should have a BA/BS degree and at least 4 ...

Senior Revenue Engineer Pricing Platform & Data Pipelines

A global mobility platform in London is seeking a Senior Revenue Engineer to build scalable pricing infrastructure. You will design and implement systems for pricing optimization, collaborating with multiple teams to ensure reliability and performance. The ideal candidate has 5+ years in backend engineering, exp ...

Senior Automation QA Engineer

A tech corporation in Greater London is seeking a Senior Automation Test Engineer to deliver reliable automated testing solutions supporting public sector and defense clients. The role involves designing and developing test scripts and collaborating with developers to enhance product quality. Candidates should h ...

Quantitative Research Intern: Build Next Gen Models & Signals

Citadel LLC in London is looking for a Quantitative Researcher Analyst intern. You will work on developing and refining mathematical models and trading strategies using statistical analysis and machine learning techniques. The internship lasts 11 weeks during summer, with opportunities to collaborate with senior ...

VP, Senior Quant Analyst — Credit/Hybrid Trading

Banco Santander SA is seeking a VP, Senior Quantitative Analyst in London. This role focuses on developing pricing and risk models for credit trading and involves enhancing quantitative libraries. Candidates should have strong C++ and Python skills along with experience in credit and hybrid products. A higher de ...

Senior Data Scientist — Health Data & Recruitment Tech

Our Future Health is looking for a Senior Data Scientist to enhance our clinical recruitment efforts. You will play a vital role in shaping data products and technical capabilities, collaborating with diverse teams to deliver impactful solutions. This hybrid role requires significant experience in data science, ...

Senior Backend Engineer AI APIs & Scalable Infra (London)

W Talent is looking for a Senior Backend Engineer to join their London team. As part of a rapidly growing consumer technology company focused on AI, you will be responsible for designing and implementing backend services using Python, FastAPI, and Django. The role requires strong expertise in REST APIs and Postg ...

Senior Backend Engineer Cloud & Data Pipelines (Hybrid)

Applied Data Science Partners seeks a Senior Software Engineer (Backend) to design, develop, and deploy software solutions. You will work on data pipelines and APIs, utilizing your expertise in Python, Docker, and cloud services. The role involves mentoring junior engineers and ensuring the quality of software t ...

Senior AI Product Engineer: Lead Real Time Coaching Tool

Ignitus in London is seeking a Senior Product Engineer to lead the development of innovative AI solutions. You will work closely with the CEO and a small team to drive tech strategy and product vision. This role requires a strong background in Python, team leadership, and experience with LLMs and vector database ...

Performance Strategy & Operations Lead Remote

InvestEngine is seeking a Senior Strategy & Operations Manager, a critical role focused on enhancing company performance metrics. You'll work with the CEO and COO to build a data-driven performance system, implement KPIs, and improve operational effectiveness. The role requires 5–8+ years of experience in high-g ...

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    Senior Python Developer Pythonawsreact Jobs in London Job Search Guide, Trends and Insights