Software Engineer Python Java Data Jobs in London, UK

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Senior Security Engineer & Full Stack (React/Java)

A global financial services leader located in London seeks a Lead Security Engineer with expertise in delivering secure software solutions. The ideal candidate will design, code, and test applications using Java and React, resolve production issues, and ensure a secure, agile development process. Key qualificati ...

Senior Android Engineer Kotlin, Scale & Impact

A leading food delivery service in Greater London is seeking a Software Engineer to enhance their technology infrastructure. The role involves improving code structure and architecture, as well as leading projects in a collaborative environment. Ideal candidates will have over 3 years of experience in Android de ...

Senior Reliability Engineer: Scale Microservices & Performance

Wise is seeking a Senior Software Engineer to join their Reliability Engineering team in Greater London. You will collaborate with software teams to enhance the reliability and performance of Wise products. This role requires a strong background in product engineering, microservices, Kubernetes, and hands-on exp ...

Backend Infrastructure Engineer: Scale & Secure Systems

A leading software company in Greater London seeks a Backend Software Engineer to build scalable and performant systems, tackling real-world problems with innovative solutions. The role involves collaborating across teams and working autonomously to create APIs and systems that support impactful products. Candid ...

Engineering Manager – Loyalty Platforms & Personalised Offers

M&S in Greater London is seeking a Senior Software Engineer to lead and mentor a high-performing software development team. The role requires experience in building scalable solutions and expertise in various technologies including Java and React. You will oversee project delivery while ensuring quality, reliabi ...

Cloud DevX Engineer — Firmware Testing & AI Tools

Amazon is seeking a Software Development Engineer to join the RBKS Developer Experience team in Greater London. In this role, you will design and build cloud services on AWS to improve testing processes and enhance developer workflows, using generative AI techniques where beneficial. Ideal candidates have experi ...

Quantitative Developer Fixed Income Asset Manager (Contract)

Quantitative Developer Fixed Income Asset Manager (Contract) An asset manager is improving their risk, P&L, and reporting systems and are looking for an experienced quantitative developer to face off to the traders and quantitative researchers to develop enhanced systems and data capabilities for ...

Quantitative Developer Fixed Income Asset Manager (Contract)

Quantitative Developer Fixed Income Asset Manager (Contract) An asset manager is improving their risk, P&L, and reporting systems and are looking for an experienced quantitative developer to face off to the traders and quantitative researchers to develop enhanced systems and data capabilities for their fixed inc ...

Backend Software Engineer Search, Crawler Team

Backend Software Engineer - Search, Crawler Team (London, Belgrade, Berlin) Join to apply for the Backend Software Engineer - Search, Crawler Team (London, Belgrade, Berlin) role at Perplexity We are seeking an experienced Backend Software Engineer to join our Crawler team ...

Senior Backend Platform Engineer – EdTech (Learning Systems & Integrations)

# Senior Backend Platform Engineer – EdTech (Learning Systems & Integrations),February 15, 2026### Job Description**Location:** London, UK **Work Model:** On-site **Role Type:** Full-TimeWe are looking for a **Senior Backend Platform Engineer** with strong experience in scalable backend systems and API archite ...

Technology Project Manager Financial Services

Technology Project Manager - Financial ServicesLondon Our client, a leading financial services company, is looking for a proven Tech Project Manager to join their growing team. The role will require someone to liaise between the external development team, internal stakeholders and vendors ...

Technology Project Manager Financial Services

Technology Project Manager - Financial ServicesLondon Our client, a leading financial services company, is looking for a proven Tech Project Manager to join their growing team. The role will require someone to liaise between the external development team, internal stakeholders and vendors ...

Data Engineering Tech Lead

Salary: up to £200k base + bonusSummaryFantastic opportunity for an experienced engineer to lead a brand-new data engineering team at this tech-savvy algorithmic trading firm. A very hands-on tech lead, you’ll be building a new system for processing and managing daily data ...

Data Engineering Tech Lead

Salary: up to £200k base + bonusSummaryFantastic opportunity for an experienced engineer to lead a brand-new data engineering team at this tech-savvy algorithmic trading firm. A very hands-on tech lead, you’ll be building a new system for processing and managing daily data ...

Senior Sales Engineer, Commercial

From Fivetran’s founding until now, our mission has remained the same: to make access to data as simple and reliable as electricity. With Fivetran, customer data arrives in their warehouses, canonical and ready to query, with no engineering or maintenance required. We’re proud that more organizations continue ...

Senior Sales Engineer, Commercial

From Fivetran’s founding until now, our mission has remained the same: to make access to data as simple and reliable as electricity. With Fivetran, customer data arrives in their warehouses, canonical and ready to query, with no engineering or maintenance required. We’re proud that more organizations continue ...

Rates Quant Developer VP: Build Production Trading Systems

A leading global financial services firm in Greater London is seeking a Quantitative Developer, Rates – Vice President. In this role, you will design and deliver production systems for systematic trading, partnering closely with researchers and traders. Candidates should have strong programming skills in Java or ...

Senior Java Engineer – Enterprise Grade Apps (Spring, CI/CD)

A financial markets technology leader is establishing a talent pipeline for a Senior Java Engineer role. The position requires expertise in designing scalable Java applications using modern frameworks. Candidates should demonstrate proficiency in Java SE, object-oriented programming, and have a strong understand ...

Member of Technical Staff,Compute Orchestration & Scheduling MAI Superintelligence Team

**Overview** Microsoft AI is looking for a Member of Technical Staff, Compute Orchestration & Scheduling to help build the next wave of capabilities of our personalized AI assistant, Copilot. Weu2019re looking for someone who will bring an abundance of positive energy, empathy, and kindness to the team e ...

Member of Technical Staff,Compute Orchestration & Scheduling MAI Superintelligence Team

**Overview** Microsoft AI is looking for a Member of Technical Staff, Compute Orchestration & Scheduling to help build the next wave of capabilities of our personalized AI assistant, Copilot. Weu2019re looking for someone who will bring an abundance of positive energy, empathy, and kindness to the team e ...

Senior Quant Developer: OTC Pricing & Live Liquidity

A high-growth institutional trading business in the digital assets market is expanding its London team and hiring a Quant Developer to join its OTC pricing function. This is a great opportunity to join a successful firm adding headcount as it continues to grow, and to work on highly visible quantitative sy ...

Senior AI/ML Cloud Engineer — Python & AWS Lead

Job DescriptionJ.P. MorganChase is seeking a Senior Software Engineer with expertise in AWS and Python, and a passion for Machine Learning, to help engineer and deploy innovative ML solutions into production. Job DescriptionJ.P. MorganChase is seeking a Senior ...

Quantitative Trading & Research Rates Quantitative Developer Vice President

Join a collaborative, fast-paced team where your code powers systematic trading in global Rates markets. You will help transform research into robust, production-grade strategies and platforms. Work closely with quantitative researchers and traders to design, build and evolve execution capabilities. Grow y ...

AI Engineer

Join to apply for the AI Engineer role at Millennium . We are working on different areas where AI/ML can help portfolio managers, researchers, risk managers, and other functions. Some examples are: enabling traders/researchers to consume vast amounts of research and literature by org ...

Quantitative Trading & Research Rates Quantitative Developer Vice President

Join a collaborative, fast-paced team where your code powers systematic trading in global Rates markets. You will help transform research into robust, production-grade strategies and platforms. Work closely with quantitative researchers and traders to design, build and evolve execution capabilities. Grow your ...

Data Platform SRE

Assume a critical role in defining the future of a globally recognized firm and have a direct and significant effect in a realm tailored for top achievers in site reliability.As a Lead Site Reliability Engineer at JPMorgan Chase within the CT/COGT, you hold a leadership role in your team, demonstrate s ...

Quantitative Trading & Research Rates Quantitative Developer Vice President

Join a collaborative, fast-paced team where your code powers systematic trading in global Rates markets. You will help transform research into robust, production-grade strategies and platforms. Work closely with quantitative researchers and traders to design, build and evolve execution capabilities. Grow your ...

Data Platform SRE

Assume a critical role in defining the future of a globally recognized firm and have a direct and significant effect in a realm tailored for top achievers in site reliability.As a Lead Site Reliability Engineer at JPMorgan Chase within the CT/COGT, you hold a leadership role in your team, demonstrate s ...

AI Engineer, Google Cloud Consulting

Minimum qualifications Bachelor's degree in Computer Science or equivalent practical experience. 3 years of experience building and deploying machine learning solutions (including both Classical ML/Deep Learning and Generative AI) and working directly with technical customers or s ...

FX Quantitative Developer

Bonhill Partners are working closely with a well-established Crypto exchange to hire a Quantitative Java Developer to work on their low latency/HFQ trading platforms. This is a Hybrid role with a requirement of 2/3 days in office. Requirements: Advanced Java develop ...

Client‑Facing Enterprise AI Deployment Engineer

A technology company focusing on AI infrastructure is seeking a Forward Deployed Engineer to manage the deployment lifecycle and work directly with enterprise clients in the UK. Responsibilities include designing AI applications, integrating systems, and collaborating with various stakeholders. The ideal candida ...

Hybrid Senior Modelling Engineer — Run Training Algorithms

A leading fitness technology firm based in Greater London is seeking a Software Engineer with expertise in Python to join their Train Team. You will be responsible for building and delivering innovative training features, leveraging data-driven approaches, and coaching fellow engineers. The role offers a competi ...

SaaS Implementation Engineer — Data Ownership & Equity

A growing SaaS business in the financial services sector is looking for an Implementation Engineer to own the end-to-end onboarding and implementation of software solutions. The role combines technical responsibility with strategic involvement, offering high visibility and influence. Ideal candidates will have e ...

Remote Applied AI Engineer Build Real World AI Systems

A leading technology consultancy seeks an Applied AI Engineer to design and deliver AI-powered systems. This remote position allows for collaboration with experienced engineers and data scientists on meaningful AI projects. Ideal candidates will have 2 years of experience in software engineering or AI-related ro ...

Product Minded Full Stack Engineer — Own & Shape

A fast-growing SaaS business in Central London is seeking a Full-stack Software Engineer who is ready to take ownership of projects and influence product direction. In this role, you will build and ship features across both frontend and backend, working closely with product, design, and data teams. Ideal candida ...

Senior ML Platform Engineer: GenAI & Scale

A leading food delivery platform in the UK seeks an experienced ML Platform Engineer to design and enhance scalable machine learning infrastructure. The role involves collaboration with data scientists and engineers to support ML and generative AI initiatives. Candidates should bring over 3 years of experience i ...

Lead Python & AWS AI/ML Cloud Engineer

A global financial services firm is seeking a Lead Software Engineer who specializes in AWS and Python, focusing on innovative machine learning solutions. This position requires collaboration with data scientists and engineering communities to develop and maintain high-quality applications. Responsibilities incl ...

Senior AI & ML Research Engineer

A leading technology company in Greater London is seeking a Senior Research Engineer to develop scalable machine learning solutions. In this role, you will work collaboratively within a team to build data-driven capabilities that improve workflows for various professionals. Ideal candidates have 5+ years of soft ...

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 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 ...

AI First Product Engineer: Build Data for 1B Shoppers

Provenance.org in Greater London is hiring a Product Engineer. In this role, you'll design and maintain the core web application while leveraging LLMs and ML methods to automate data operations. You need 3-5 years of production software experience in JavaScript, Ruby, or Python, along with a track record of buil ...

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 ...

Senior Automation Test Engineer eSC or eDV Required

Introduction At IBM Consulting UK FutureNow, you’ll build a career at the forefront of hybrid cloud and AI, working with leading clients across the public and private sectors. You’ll collaborate with top industry professionals, gain hands on experience with cutting edge technologies, and deliver ...

Senior Software Engineer (Tech Lead)

Senior Software Engineer (Tech Lead) page is loaded## Senior Software Engineer (Tech Lead)locations: United Kingdom - London - Paddington (PPS)time type: Full timeposted on: Posted Todayjob requisition id: JR Take a step forward and let Edenred surprise you.Every day, we deliver innovative solutions to i ...

Senior Software Engineer (Tech Lead)

Senior Software Engineer (Tech Lead) page is loaded## Senior Software Engineer (Tech Lead)locations: United Kingdom - London - Paddington (PPS)time type: Full timeposted on: Posted Todayjob requisition id: JR Take a step forward and let Edenred surprise you.Every day, we deliver innovative solutions to i ...

Senior Backend Software Engineer (UK)

JoinPigment: The AI Platform Redefining Business Planning Pigment is the AI‑powered business planning and performance management platform built for agility and scale. We connect people, data, and processes in one intuitive, feature‑rich solution, empowering every team—from Finance to HR—to ...

Senior Backend Developer

Overview At TripleTen, we’re creating innovative learning products that empower people to master IT professions like software engineering, data science, business intelligence, and QA — no matter their prior experience. Our AI-driven and thoughtfully designed platform helps students build real ski ...

Junior Data Engineer

Curve is a next-gen insights, analytics and technology consultancy that leverages digital consumer data and advanced technology to help businesses unlock consumer opportunities. Digital consumer data is powerful; it’s big, it’s real, and it’s always updating. We use a combination of in-house technology and be ...

Senior Python Developer SQL Finance

Senior Python Developer / Software Engineer (Python SQL IaC AWS) London, 12‑month Fixed‑term Contract to £180k Are you a data‑savvy Senior Python Developer with strong SQL skills and finance experience?You could be progressing your career in a hands‑on Senior Python Developer role at ...

Lead Backend Engineer Cloud Native Microservices

A major global banking institution is seeking a Lead Software Engineer to develop cloud-native applications in a collaborative environment. The ideal candidate will possess strong Java programming skills and experience with cloud technologies, particularly AWS. Responsibilities include delivering end-to-end solu ...

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