Senior Python Developer Pythonawsreact Jobs in London, UK

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Junior Data Engineer: Cloud, ETL & Tableau

A prestigious investment firm in London is seeking a Junior Data Engineer to join their Technology function. This role focuses on data integration and governance while providing the opportunity to develop and maintain scalable data frameworks. The ideal candidate should have 1-3 years of experience, strong skill ...

Staff Data Quality & Governance Engineer

A leading online marketplace in Greater London is seeking a Staff Data Engineer to enhance the reliability, trust, and compliance of its data ecosystem. You will design frameworks and processes that strengthen data foundations and ensure accuracy and observability. The ideal candidate has substantial experience ...

Quantitative Analyst, Sports Betting Bayesian ML & Risk

A dynamic sports analytics firm in London is seeking a skilled Quantitative Analyst to deliver innovative solutions to the sports betting industry. You will leverage advanced statistical models and machine learning to interpret complex sports data, providing insightful analytics. Ideal candidates possess a mathe ...

Full Stack Engineer AI Powered Debt Markets Platform

A leading AI platform for debt markets is seeking a Backend Engineer to develop systems and functionality for their platform using Python. The role involves collaborating with cross-functional teams to design and implement software that delivers value to clients. Ideal candidates will have experience in API deve ...

Senior Analytics Consultant – SRM/RGM for CPG

A leading analytics consulting firm in Greater London seeks a Business Consultant with 8-12 years of experience in data analytics. The candidate will work closely with client stakeholders to define business problems, perform analysis, and ensure that business value is communicated effectively. Strong communicati ...

Senior Options Quant Researcher Alpha Strategies

A leading financial technology firm is seeking a Quantitative Researcher to develop systematic options trading strategies. This hybrid role based in London requires strong expertise in quantitative research, programming skills in Python, and experience in systematic trading. The successful candidate will collabo ...

ML Engineering Manager for Chat & LLMs (Hybrid)

A fast-growing fintech company in London is looking for a Machine Learning Team Lead to join their Chat data science function. This role involves managing a team of ML engineers, developing production models for the Chat feature, and improving customer behavior datasets. The ideal candidate will have extensive e ...

Lead AI Engineer, Agentic Systems & Production

A leading global financial services firm is looking for an AI Engineer to design, build, and deploy autonomous AI agents. This role involves working on advanced multi-agent systems to streamline workflows in a collaborative environment. Applicants should have an advanced degree in a relevant field and experience ...

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 ...

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 ...

Impact Focused FDSE: Field Embedded Data Solutions

A leading data analytics company in Greater London is seeking a Forward Deployed Software Engineer. You will work closely with customers to tackle critical challenges, utilizing advanced technology and large-scale data. Candidates should possess a strong engineering background, be proficient in languages like Py ...

Backend Engineer, AI Platform – Equity Options

An innovative AI company in London is seeking a passionate Backend Engineer to develop and maintain scalable backend systems for their cutting-edge AI products. In this role, you will work closely with cross-functional teams to ensure high performance and reliability across systems. Ideal candidates will have a ...

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 ...

Full Stack Engineer Scale a Data Driven Insurance Platform

A leading digital insurance provider in the UK is seeking a Full-stack Engineer to drive software development on their innovative platform generating substantial revenue. You will leverage Kotlin and Python for backend and data services, while creating engaging frontend applications using React and Typescript. T ...

Lead Data Platform Engineer Asset & Wealth Mgmt

A leading financial services provider in Greater London is seeking a Lead Software Engineer to design and implement innovative data and analytics solutions. You will work on automation and data ingestion while collaborating with various stakeholders. Ideal candidates will have experience with public cloud analyt ...

Safeguards Infra Engineer Build Safe AI, Flexible Hours

A technology company in London is seeking a Software Engineer for Safeguards Infrastructure. In this role, you will develop critical safety mechanisms for AI systems. Ideal candidates will have a Bachelor's degree and 4 to 10 years of software engineering experience, proficiency in Python, and the ability to com ...

Remote T Level Examiner – Digital Software Development

A leading educational organization in Greater London is seeking T Level Examiners to mark student exams in computing subjects. Candidates must have a relevant degree or qualification, proficiency in programming languages like Python and Java, and teaching or assessment experience. This contract role offers flexi ...

Global Impact FDSE: End to End Solutions Architect

A leading software company based in Greater London seeks a Forward Deployed Software Engineer to design and implement solutions addressing complex customer challenges. You will work on impactful projects, leveraging technologies to drive real outcomes. Candidates should have at least 1+ years of programming expe ...

Hands On Software Development Manager – SaaS & AI

A leading legal technology firm in the UK is seeking a highly technical Software Development Manager to lead an Engineering team. This role demands a strong background in Python and experience in people leadership within software development. You will build scalable solutions that empower legal professionals, co ...

Remote ML Career Coach & Interview Mentor (Part Time)

A leading career development platform based in the UK is looking for a part-time Machine Learning Career Mentor to guide international talents entering the tech industry. Responsibilities include conducting mock interviews, providing job market insights, and refining candidates' technical resumes. The ideal cand ...

Backend Engineer Green Energy Platform & Global Growth

A leading digital energy supplier in London is seeking a Backend Engineer to join their team focused on business energy solutions. The role requires expertise in Python and Django, with an emphasis on building reliable and efficient systems. The ideal candidate will collaborate across teams to innovate while pre ...

Senior Crypto Quant Trader Flow & Analytics

A financial services firm in Greater London is seeking an experienced Quant Trader for their Quant Trading team. The role involves developing trading strategies, conducting market analysis, and improving pricing algorithms. Candidates should hold a Master’s degree in a related field and have 5+ years of trading ...

Senior Applied AI/ML Associate – Payments Operations

A global financial services firm in London is seeking an Applied AI & Machine Learning Associate to optimize business decisions using cutting-edge machine learning techniques. This role involves researching and developing innovative ML-based solutions and collaborating with engineering teams to integrate these i ...

Lead Risk Officer – Investment & Counterparty Risk, London

A leading financial services firm is seeking a Risk Officer in London. The successful candidate will oversee investment and counterparty risk management for Long/Short equity and macro businesses. Responsibilities include defining risk limits, building risk infrastructure, and performing daily monitoring. Ideal ...

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 Backend Engineer Rust/C++ & AI API Systems

A forward-thinking AI company in Greater London is seeking a skilled software engineer to develop and maintain scalable production systems that power their API. This role requires expert knowledge in Rust or C++, along with extensive experience in Python and containerization technologies like Docker and Kubernet ...

Enterprise AI Engineer (GenAI & Cloud Platforms)

A global consulting firm is seeking AI Engineers to join their expanding team in financial services. The role involves developing and deploying machine learning models, building scalable AI and data pipelines, and engineering ML systems on modern cloud platforms. Ideal candidates have experience in AI or machine ...

Senior Quantitative Engineer – Finance Analytics

A prominent financial services provider is seeking a skilled Quantitative Engineer to develop robust applications that support trillions in assets. The role involves writing efficient code for index calculations, analyzing financial datasets, and collaborating with teams to enhance the Firm’s analytics. Ideal ca ...

Staff Data Engineer: Quality, Observability & Governance

A forward-thinking fashion marketplace headquartered in London is seeking a Staff Data Engineer to lead the creation of frameworks and tools for data quality and governance. You'll focus on making sure data is reliable, observable, and compliant, while collaborating with various teams. Ideal candidates have subs ...

Remote Cloud Architect for AI/ML Solutions

A leading AI solutions provider is seeking a Cloud Architect to join its Engineering team. The role focuses on creating enterprise-quality AI and data science solutions, requiring excellent skills in Java, Typescript, or Python, as well as experience with cloud platforms such as GCP, AWS, or Azure. You will lead ...

Cloud Security Research Engineer – Detect & Defend Cloud

A leading cloud security company seeks a Cloud Security Research Engineer to help safeguard customer environments from cyber threats. You will research and develop innovative detection mechanisms, assess cloud service vulnerabilities, and collaborate with teams to create scalable security solutions. The role req ...

Quant Research Engineer Scalable Platforms & Discovery

A leading quantitative finance firm in Greater London seeks a Research Engineer to develop high-impact research tools and platforms. The role involves working closely with researchers, delivering well-engineered software, and applying solid knowledge of algorithms and data structures. Ideal candidates should hav ...

Global Market Data & Strategy Analyst (Remote)

A venture-focused advisory organization in the UK is seeking a Data & Strategy Analyst who excels at solving complex problems and working with data. In this role, you'll build analytical models in Python, conduct market research, and participate in deal support activities. Candidates should have a strong quantit ...

Hybrid Insurance Pricing Leader

A leading insurance and technology firm in the UK is seeking a Risk Pricing Manager to develop innovative pricing strategies that enhance profitability. This pivotal role requires a blend of analytical expertise and collaborative leadership, ensuring competitive pricing models that adapt to market influences. Id ...

Global Trading Platform Infrastructure Engineer

A global trading firm in London is seeking an Infrastructure Engineer for the Fixed Income Commodities and Currency Options team. You will design and maintain high-availability systems for trading, employing technologies like Kubernetes, Terraform, and Python. Ideal candidates have experience in trading infrastr ...

AI Software Engineer — End to End Enterprise AI, Equity

A VC-backed AI startup is seeking a Software Engineer to join a high-velocity team focused on building synthetic populations that influence critical decision-making. You'll work directly with influential founders, owning features end-to-end while applying your skills in React, Python, and collaboration. The idea ...

VP Front Office Quant — Hybrid, Platform Architect

A leading global investment banking group is seeking an experienced Quant Analyst / Quantitative Researcher at the Vice President level to advance their Global Markets analytics function. Key responsibilities include developing complex pricing models and implementing risk frameworks. Candidates should possess a ...

European Gas & Power Execution Trader – Hybrid + Bonus

A leading hedge fund in London is seeking an exceptional Execution Trader. This role involves executing trades in European Gas & Power derivatives and collaborating closely with portfolio managers and internal stakeholders. Ideal candidates will have 2–5 years in trading, a strong understanding of commodity mark ...

AVP Trader – Global Markets & Execution

A leading global investment firm is looking for an Associate / AVP, Trader in London. In this role, you will execute trades across various asset classes including FX, equities, and commodities. The position requires strong trading experience, clear communication skills, and programming proficiency in Python. You ...

Agentic AI Platform Engineer

A premier financial technology firm in London is looking for an AI Engineer to develop and maintain an innovative agentic platform. This role involves creating and enhancing Python SDKs, implementing best practices for agent development, and delivering tailored AI solutions for the business. The ideal candidate ...

Senior Multimodal ML Data Engineer

A leading design platform company is seeking a Machine Learning Engineer to own the data lifecycle for multimodal agent research. This role involves designing and building data pipelines, collaborating with researchers, and ensuring data quality at scale. Ideal candidates will have strong Python experience and p ...

Freight Market Analytics & Trading Analyst

A major energy sector corporation in the UK is seeking experienced candidates for the Freight Trading Analytics role. This position involves performing freight market analysis to predict vessel supply-demand balances and market disruptions. Successful applicants will develop models and tools to support trading s ...

Lead Data Analyst, FX Markets & Treasury Insights

A leading FinTech company in London is seeking a Lead Data Analyst for their FX Markets team. In this role, you will analyze key data to influence decisions that optimize trading strategies and minimize financial risks. Candidates should have 4-7 years of relevant experience, an analytical mindset, and be well-v ...

AI Powered Data Analyst & Prompt Engineer (Paid Social)

A digital marketing agency in Greater London seeks a data analyst/prompt engineer to enhance social commerce and AI implementation. This role involves supporting account managers with performance data, creating AI pipelines for revenue opportunities, and optimizing analysis processes. Candidates should have stro ...

Staff Platform Engineer – Neurosymbolic AI at Scale

A forward-thinking AI company is seeking a Staff Software Engineer to shape the technical direction of its platform. The ideal candidate will possess deep expertise in Python, strong system design skills, and a proven track record in production-quality engineering. Responsibilities include writing code, mentorin ...

Crypto Algorithmic Trader: Own Your Desk & Impact

A leading algorithmic trading company in London is seeking an Algorithmic Trader. This role involves improving trading strategies, analyzing data, and developing innovative trading products. The ideal candidate will have 1-3 years of experience or relevant internships, strong Python coding skills, and a passion ...

Graduate Trader: AI Driven Markets & Strategy

A leading financial services firm in Greater London is seeking a Trader Analyst. This role involves trading support tasks, collaboration on trading strategies, and requires a Bachelor's or Master's degree in a STEM discipline. Ideal candidates are recent graduates with a strong interest in trading and financial ...

Global Game Development Engineer – Gameplay & Tools

A leading game development company in the City Of London seeks passionate engineers for a talent pool in co-development roles. Candidates will design and optimize gameplay systems and collaborate with cross-functional teams. Ideal applicants have over 3 years of experience in gaming engineering and proficiency i ...

Security‑Focused Backend Engineer

A leading technology firm in Greater London is seeking a Security & Backend Engineer to enhance its core data solutions. The ideal candidate will own backend services and ensure data and system security, balancing feature delivery with long-term hardening. You should have over 5 years of experience in operating ...

Enterprise Solutions Engineer GenAI & AI SaaS

A leading AI solutions company seeks a Solutions Engineer in Greater London. You will partner with Account Executives to deliver customized demos, develop technical requirements for enterprise clients, and lead customer applications of Generative AI technology. The role demands strong engineering skills, experie ...

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