Lead Software Engineer Python Java Jobs in London, UK

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Senior Storage Engineer (Contract) Enterprise Data, London

Magnit Global is seeking an experienced Senior Storage Engineer for a 6-month contract in London, offering £630 per day. This role involves key technical responsibilities in maintaining enterprise storage and backup infrastructure within a highly regulated environment. The ideal candidate will have strong skills ...

Hybrid AI Engineer: Enterprise GenAI & ML Solutions

Involved Solutions is seeking an AI Engineer for a hybrid role in London. The successful candidate will be involved in designing and deploying AI solutions that deliver measurable business value while collaborating closely with stakeholders. You will require strong proficiency in Python and experience ...

Forward Deployed Engineer: Healthcare AI Clinical Workflows

Heidi Health Ltd is hiring a Forward Deployed Engineer based in Greater London. You will manage end-to-end technical onboarding for enterprise customers, including EMR integrations and custom workflows. Your role requires a proven technical background with 4+ years in implementation engineering, strong coding sk ...

ML Data Engineer: Build, Deploy & Monitor Models

Gravity Engineering Services Pvt Ltd. is seeking a Data Engineer based in Greater London. The role involves designing and building data pipelines, conducting statistical modeling, and optimizing algorithms. The ideal candidate will have over 3 years of experience in data engineering, strong skills in P ...

Senior Firmware Engineer: V2G & Edge on Embedded Linux

Stars Arena is looking for a Senior Firmware Engineer to join their London team. The successful candidate will develop firmware for V2G edge devices and integrate systems with cloud backends while ensuring optimal performance on embedded Linux platforms. Applicants should have strong scripting skills in Python a ...

Senior AI & Vulnerability Security Engineer Remote

Samsara is seeking a Senior Security Engineer in Greater London to enhance their Vulnerability Management infrastructure. The role involves leading operations, improving vulnerability detection, and collaborating with engineering teams. Strong experience with security engineering best practices, Python/GoLang, a ...

SRE Linux Platform Engineer Low Latency Cloud Automation

Hunter Bond is seeking a Site Reliability Engineer – Trading for their London location. The ideal candidate will work on a low latency Linux estate, combining Linux Systems Engineering and Site Reliability Engineering tasks. Responsibilities include building and supporting automated solutions for scalable deploy ...

AI Quality Engineer — Agentic Systems & Testing, London

Cititec is seeking a Quality Engineer for a £750/day contract in London with an initial duration of 6 months. The role involves designing evaluation frameworks and building automated testing pipelines for AI systems. Ideal candidates will have strong Python experience, understanding of agentic AI, and ...

BI Engineer: Data Warehouse & Dashboards Expert

TMX Group in London is looking for a Business Intelligence Engineer to architect and maintain data solutions, ensuring quality and governance. You will design user-friendly dashboards and collaborate with stakeholders to promote data-driven decisions. The ideal candidate has expert SQL skills, programm ...

Data Engineer: Clinical Trials Data Pipelines

Qureight Ltd in Cambridge is seeking a Data Engineer to design and implement data processing plans for clinical trials. The role involves collaborating with multidisciplinary teams and ensuring robust, scalable data pipelines that meet regulatory compliance. Ideal candidates will have experience in dat ...

SaaS Cloud DevOps Systems Engineer

Stars Arena is looking for a System Engineer focusing on SaaS, Cloud, and DevOps in London, United Kingdom. This intern role involves working with a tech stack that includes AWS, Azure, GCP, and Python, emphasizing security standards like ISO27001 and GDPR. While the position offers competitive compensation, vis ...

New Grad Backend Engineer: AI & Data Pipelines

GodmodeHQ is looking for a New Graduate Backend Engineer to join their team in Waterloo, London. The role involves developing applications using Python and Django with a focus on AI solutions. You will assist in integrations, manage data pipelines, and help scale the company's innovative products. This is a grea ...

Senior Data Engineer – Content Analytics & Pipelines

Cpl Life Sciences is seeking an experienced Data Engineer in Greater London. This role involves designing and building scalable data pipelines and enabling customer-facing features and internal analytics. Candidates should have strong experience in operating data pipelines at scale and proficiency in SQL and pro ...

Senior Backend Engineer, Scalable Data Infrastructure

Encord is seeking an experienced backend engineer to build and maintain systems that handle large volumes of data. Located in Greater London, you will take ownership of projects and work closely with a collaborative team. Strong experience in PostgreSQL and skills in Python are essential. The role offe ...

Network Engineer — Quant Trading, Linux & Automation

Golang Works is looking for a Network Engineer to join their team in London, United Kingdom. In this full-time position, you will manage network operations, utilize your scripting skills in Python, Bash, and Go, and apply your knowledge of networking protocols like OSPF and BGP. Candidates must have strong Linux ...

Global NPI Automation QA Engineer (SDET)

Microtalent is becoming INSPYR Global Solutions seeks a Quality Engineer (SDET) in the Battersea area of London. This hybrid role demands expertise in driving automation for global NPI content management, creating scalable test automation frameworks, and validating massive data sets. Candidates should possess st ...

Low Latency Trading DevOps Engineer

Jobs via eFinancialCareers is hiring a DevOps Engineer in London to join a leading global hedge fund's Trading Infrastructure team. This is an opportunity to work on low-latency systems and enhance CI/CD pipelines. The role involves designing automation for trading platforms, addressing inefficiencies, and impro ...

Research Engineer: Scalable AI Models for Structured Data

Vertex Search in Greater London is seeking a Research Engineer to help shape research direction in AI. This role involves optimising training infrastructure, designing performance enhancements, and writing GPU kernels. Candidates should have a PhD or Master's in Machine Learning or Computer Science, proficiency ...

Applied AI Research Engineer Remote & Equity

hyperexponential is seeking a Research Engineer to bridge Product Management and Engineering. You'll evaluate emerging AI capabilities, run experiments, and ensure quality in the specialty insurance domain. Ideal candidates have experience with applied AI/ML challenges, can communicate findings effectively, and ...

Remote Tech Solutions Engineer AI & Data for Auto Parts

Partly is seeking a Technical Solutions Engineer to unify automotive data and drive client success. This role requires working with enterprise clients to understand their data needs, collaborating cross-functionally, and handling technical discussions. Key skills include proficiency in SQL and Python, along with ...

Senior Fullstack Engineer – AI Care Platform (Hybrid)

black.ai is seeking a Mid-level or Senior Fullstack Engineer to support the development of AI features that enhance clinical workflows. This hybrid role demands proficiency in Python and modern frontend technologies along with a medical degree and clinical experience. You will collaborate closely with product te ...

Senior AI Engineering Lead, Capital Markets (Hybrid London)

Datatech is seeking a Senior AI Engineer Manager in London. The role involves supporting the design and delivery of AI solutions in financial services. Candidates should have a strong background in AI engineering and experience in leading teams to deliver impactful AI products. This position offers a h ...

ML Engineer: AI Talent Matching Engine + Equity

Dex in Greater London is seeking an ML Engineer who will drive the development of an AI talent matching system. The role entails working with embeddings, vector search, and building reliable backend services in Python. The candidate should possess production judgment and robust execution skills, alongside a soli ...

Senior ACI Network Engineer Data Center Automation & HA

Penta Consulting is seeking a Senior ACI Network Engineer to design, deploy, and maintain Cisco ACI fabrics across data centres in the UK. This contract position requires expertise in VXLAN, BGP, OSPF, and experience with automation frameworks including Python and Ansible. The role is focused on translating busi ...

Senior ML Engineer: Personalization & Production (Hybrid)

Sky is seeking a highly skilled Senior Machine Learning Engineer to advance our personalised recommendation systems. You will collaborate closely with data scientists and product managers to design intelligent content recommendation mechanisms. Your role includes model development, data pipeline engine ...

Robotics AI Inference Engineer

Humanoid is looking for a skilled Neural Network Performance Engineer to join their VLA team in London. This position involves enhancing neural network performance for robotic applications, ensuring efficient control policy execution. Candidates should have a strong background in deep learning, experie ...

ML Engineer II: Build Scalable AI for Travel Solutions

A leading business travel company is seeking a Machine Learning Engineer II to join their Product AI Engineering team. This role involves designing, building, and optimizing intelligent systems using cutting-edge AI techniques. Candidates should have over 6 years of experience with a bachelor's or equivalent. Fa ...

Production ML Engineer: Scale Personalization Impact & Equity

A forward-thinking tech startup in Greater London seeks an experienced Machine Learning Engineer to develop robust ML systems for retail. Your key responsibilities will include designing production-grade infrastructure and collaborating with researchers on model implementation. Applicants should have 3–5+ years ...

ML Engineer II — AI for Travel Tech (Manchester)

A leading global business travel company seeks a Machine Learning Engineer II in Manchester. The role involves designing, building, and optimizing AI systems for business impacts. Candidates should have robust experience in AI techniques, statistical modeling, and strong coding skills in Python. The company offe ...

Remote DevOps Engineer | Blockchain Infra & Security

A blockchain technology company is seeking a Mid-Senior DevOps Engineer to build and maintain secure blockchain networks and infrastructure. Responsibilities include managing Linux servers, automating processes, and creating comprehensive documentation. The ideal candidate has experience with Docker and Kubernet ...

Senior Backend Engineer: AI APIs & Scalable Infra

A leading technology company in Greater London is seeking a Senior Backend Engineer to work on advanced AI systems. The role involves building scalable APIs and improving inference infrastructure while collaborating with AI researchers. The ideal candidate will have strong skills in Python and Go, along with kno ...

Senior ML Engineer – GenAI & Real Time ML for Impact

A leading food delivery company is seeking an experienced Senior Machine Learning Engineer to join their London team. In this hybrid role, you'll shape decision-making systems affecting customer experience. Key responsibilities include leading ML model development, ensuring reliability through robust monitoring, ...

Trading Systems Engineer: Build Resilient Market Tech

A diversified trading firm is seeking a Trading Systems Engineer to join their Cumberland team. The role involves maintaining the health of trading systems, liaising with trading partners, and providing technical support. Ideal candidates will have a Bachelor’s degree in a related field, 2+ years of experience i ...

AI Engineer (Internal Audit) – Hybrid, London

A leading market infrastructure provider seeks an Associate AI Engineer to design, develop, and maintain AI services. The role involves collaborating across various functions to deliver innovative AI solutions for internal audit processes. Candidates should have expertise in Generative AI, Machine Learning, and ...

Analytics Data Engineer — Remote, Cloud Pipelines

A data solutions company in Greater London is seeking a Data Engineer. This role is mainly remote but requires flexibility to travel to client sites. Responsibilities include designing ETL processes, collaborating with teams, and ensuring data quality. Candidates should have strong skills in SQL, Python, and dat ...

Low Latency Network DevOps Engineer

A diversified trading firm is seeking a skilled DevOps Engineer to enhance automation within their low latency network team. The role focuses on building CI/CD pipelines, developing automation for network configurations, and ensuring security in workflows. Ideal candidates will have over 5 years in a similar rol ...

Senior Backend Engineer, Remote — Adaptive Telemetry

A leading observability platform is hiring a Staff Backend Engineer for Adaptive Telemetry. In this remote role, you will drive technical strategies, ensure system reliability, and mentor engineers. Preferred candidates will have experience in distributed systems and cloud-native architectures, and proficiency i ...

AI Driven Social Commerce Data Analyst & Prompt Engineer

A digital marketing agency in Greater London is seeking a data analyst/prompt engineer. The ideal candidate will support account managers with data for client performance and build AI and data pipelines to spot revenue opportunities. Required skills include strong knowledge of paid social platforms, proficiency ...

Hybrid IT Infrastructure Engineer Mac & Cloud Automation

A leading digital asset infrastructure firm in Greater London seeks an Infrastructure Engineer to support their IT infrastructure operations. This role includes managing macOS devices, cloud environments, and automating processes. The ideal candidate will have experience in IT departments, working with JAMF Pro, ...

AI Engineer: ML/NLP Specialist | £2k Learning Budget

A leading technology client in the United Kingdom is seeking an AI Engineer to design and implement advanced AI solutions for their core platform. You will work on cutting-edge projects leveraging ML and NLP techniques to solve complex challenges. The ideal candidate is proficient in Python and familiar with fra ...

Senior Backend Engineer — Architect Scalable Microservices

A leading global marketing company is seeking a Senior Backend Engineer to design and develop scalable backend systems for their unified marketing platform. This hands-on role requires strong expertise in Python and modern development patterns, with a focus on performance, reliability, and observability. You wil ...

AI Engineer — Litigation LLM Systems Architect

A legal AI technology firm in London is seeking an exceptional AI engineer to shape the future of legal work. You will design and build systems that analyze millions of documents to extract critical information for legal battles. The ideal candidate has expert-level Python skills and experience with LLM systems. ...

Infrastructure Security Engineer: Secure & Scale Platforms

A leading quantitative finance firm is seeking an Infrastructure Security Engineer to automate and configure critical security systems. The role involves owning projects across technology stacks, contributing to the security roadmap, and mentoring junior engineers. Ideal candidates will possess skills in securit ...

Founding AI Engineer Equity, Production ML, London

A fast-growing legal tech startup in London is seeking an AI Engineer to develop proprietary algorithms and evaluation pipelines. The role offers the opportunity to shape the future of a rapidly scaling AI platform while working with a talented team. Candidates should be experts in Python and have experience wit ...

Quant Research Engineer Build & Test Trading Strategies

A financial trading firm in Greater London seeks a research engineer to develop and test trading strategies using Python. The ideal candidate will contribute to building research infrastructure, explore novel market ideas, and collaborate with teammates. A Bachelor’s degree in a relevant field is required. With ...

Senior Product Engineer: Frontend & Full Stack Climate Tech

A climate-tech company based in Central London is seeking a Senior Product Engineer with strong frontend and full-stack skills. The role involves owning the frontend architecture and designing high-quality user experiences. Candidates should have deep experience with React, Next.js, and Python while showing exce ...

Senior Data Engineer — Pipelines & Warehousing

A leading retail brand in London is seeking a Staff Data Engineer to enhance their data transformation efforts. You will build and maintain data pipelines, support data-driven decision-making, and mentor junior team members. The ideal candidate has expertise in Python, Azure, and Spark, and will play a key role ...

Mid Senior DevOps Engineer – Trading Infrastructure

A global hedge fund in London is seeking a highly skilled Dev Ops Engineer to ensure the stability and performance of their research and trading infrastructure. The candidate will be responsible for monitoring production systems and implementing improvements. Ideal applicants will have over 5 years of experience ...

Senior Portfolio Engineer: Fixed Income ETFs & Indices

A global asset management firm in London is seeking a Senior Portfolio Engineer to manage Fixed Income ETFs and index portfolios. This role requires strong financial markets knowledge and quantitative programming skills in Python. The successful candidate will support client flows, manage investment and risk exp ...

Energy Quant Developer: Build Trading Models & Cloud

A leading financial services firm is seeking a highly skilled Quantitative Engineer to work on Commodities Trading. The role involves collaborating with traders on complex trading problems, designing high-performance applications, and implementing quantitative models. Ideal candidates hold a degree in a relevant ...

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