Lead Software Developer Python Jobs in UK

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Senior Software Engineer — Backend & Full‑Stack (Django/AWS)

A fast-growing B2B tech company based in London is seeking a hands-on Senior Software Engineer. You will drive the technical and product evolution and work on building full-stack solutions, integrating with external systems, and collaborating with diverse teams. The ideal candidate should have strong experience ...

Founding AI Engineer Build LLM Powered Infra

An innovative AI startup in London seeks a Founding Software Engineer to build next-gen reasoning tools powered by large language models. You will architect and scale applications, collaborate with an elite technical team, and contribute to an exciting AI-driven product. This role offers competitive equity and t ...

AI Engineer

AI Engineer (LLMs/Agentic AI/Python) – Hybrid (London – 2/3 days onsite per week) – (£500-600/DAY OUTSIDE IR35) We are currently supporting a cutting‑edge AI software company building advanced agentic AI and memory systems for enterprise clients operating within highly regulated environme ...

Sr. Software Engineer Java+AWS Job

Sr. Software Engineer – Java + AWS Date: Feb 24, 2026 Requisition Id: 64130 Location: Bangalore, KA Job Description The role involves designing, developing, and deploying Java applications on AWS platforms. Responsibilities include working with ECS, Lambda, SQS, ...

Electrochemist Life Sciences in London Portal Biotech

Electrochemist – Life Sciences London, United Kingdom Posted 10 months ago Overview We are seeking an experienced electrochemist to support research in life sciences, focusing on electrochemical analysis and data interpretation. Responsibilities O ...

Full Stack Lead Developer UX/UI Focused (Web and Digital) IT Services 100938 Grade 8

Job Description Ensure consistent user experience across desktop, tablet and mobile devices. Position Details IT Services Location: University of Birmingham, Edgbaston, Birmingham UK Full time starting salary: £47,389 to £56,535 with potential p ...

Full Stack Lead Developer UX/UI Focused (Web and Digital) IT Services 100938 Grade 8

Job Description Ensure consistent user experience across desktop, tablet and mobile devices. Position Details IT Services Location: University of Birmingham, Edgbaston, Birmingham UK Full time starting salary: £47,389 to £56,535 with potential p ...

Engineering Manager

The role & impact As an Engineering Manager, you will drive the delivery of high-quality software by leading a high-performing inclusive team. You will act as the technical anchor, balancing predictable roadmap delivery with a relentless focus on team growth, technical excellence, and system heal ...

Senior Solutions Architect, UKI Financial Services

Amazon Web Services (AWS) is seeking an experienced Senior Solutions Architect to join our Financial Services team, focusing on Capital Markets customers in the UK. As a trusted technical advisor, you will help leading financial institutions innovate and transform their business using AWS technologies. </p ...

Director Product Ecosystem

London, England, United Kingdom (Hybrid) About commercetools Real innovation starts with a strong foundation, and at commercetools, that comes from the perfect balance of our product and our people. Behind every leap forward is a collective of builders, explorers, doers, m ...

Software Development Engineer in Test Event Stream Processing

Software Development Engineer in Test - Event Stream Processing Job Locations UK-Glasgow Requisition ID 20069229 Job Category Research and Development Travel Requirements None Software Development Engineer in Test - ESP - Hybrid, Glasgow, UKWe’re a leader in data and AI. ...

Software Development Engineer in Test Event Stream Processing

Software Development Engineer in Test - Event Stream Processing Job Locations UK-Glasgow Requisition ID 20069229 Job Category Research and Development Travel Requirements None Software Development Engineer in Test - ESP - Hybrid, Glasgow, UKWe’re a leader in data and AI. ...

Quality Assurance Test Engineer

QA & Test Engineer – Runtime Assurance Systems Location: Oxford 2-3 days / week (on-site at HQ) Employment Type: Permanent – Full Time About the company The company is a fast‑growing start‑up building the Trust Layer for physical AI and autonomous syst ...

Engineering Manager

Overview The world's largest asset class, debt, operates with the worst data. Technology has revolutionized equity markets with electronic trading, quant algos and instantaneous news. However, in debt capital markets, the picture is completely different. It still behaves like it’s in the 1980s; t ...

Software Engineer (Graduate to Experienced)

Building innovative, robust software harness AI for the aviation sector London / Mostly Remote; £40k - £100k DoE This London based startup is tackling tough challenges in the aviation sector through innovative software solutions. They have sector expertise through their foun ...

Software Engineer (Graduate to Experienced)

Building innovative, robust software harness AI for the aviation sector London / Mostly Remote; £40k - £100k DoE This London based startup is tackling tough challenges in the aviation sector through innovative software solutions. They have sector expertise through their foun ...

Senior Platform Engineer

We’re Civica and we make software that helps deliver critical services for citizens all around the world. From local to state government, to education, to health and care, over 5,000 public bodies across the globe use our software to help provide critical services to over 100 million citizens. Our ...

Cloud Backend Engineer

Signaloid provides computing platforms for dramatically reducing the runtime and compute infrastructure requirements of many critical workloads in the finance, robotics, and manufacturing sectors. Organizations can run their applications over our computing platforms and in the process replace time-consuming M ...

Cloud Backend Engineer

Signaloid provides computing platforms for dramatically reducing the runtime and compute infrastructure requirements of many critical workloads in the finance, robotics, and manufacturing sectors. Organizations can run their applications over our computing platforms and in the process replace time-consuming M ...

D365 & Power Platform Lead — Hybrid CRM Transformation

A technology solutions provider is seeking a D365 & Power Platform Functional Lead to lead the design and development of Dynamics 365 Customer Engagement solutions. This hybrid role involves hands-on development, platform leadership, and ensuring scalable, secure solutions aligned with business priorities. Ideal ...

Lead Java Architect: CIAM & Microservices Leader

Avance Consulting is seeking an experienced Lead Java Developer in Northampton. This role focuses on designing and implementing scalable CIAM solutions. The ideal candidate will have at least 8 years of Java development experience, strong expertise in Spring and Spring Boot, along with hands-on experience in Mon ...

Lead Cross Platform Mobile Engineer — Shape AI Productivity

Iamwarpspeed is seeking a passionate Lead Cross-Platform Mobile Developer to lead the development of their mobile applications. This pivotal role ensures a seamless and native user experience across iOS and Android platforms. Candidates should have 5+ years of experience in cross-platform mobile development, pre ...

Senior .NET Lead Cloud Native Backend Architect

A leading technology consulting firm is looking for a Lead Dot Net Developer to architect and deliver enterprise-grade backend systems using .NET Core and Azure. You will lead a team of developers and ensure high-quality deliverables while collaborating with cross-functional teams to translate business needs int ...

Senior .NET Lead Cloud Native Backend Architect

A leading technology consulting firm is looking for a Lead Dot Net Developer to architect and deliver enterprise-grade backend systems using .NET Core and Azure. You will lead a team of developers and ensure high-quality deliverables while collaborating with cross-functional teams to translate business needs int ...

Head of Software (ML & Web)

About ZELPZELP is an agricultural technology company committed to creating a sustainable future for agriculture - one that meets the needs of present and future generations, promoting human and environmental health, animal welfare, and social and economic equity.Our first focus is ...

Lead Full Stack Architect for Live Service MMO

A leading gaming company is looking for an experienced Lead Full-Stack Developer to build and scale the architecture behind a large-scale live-service MMO. In this role, you'll lead a growing team, drive key architectural decisions, and ensure the systems you develop support player engagement and community inter ...

Lead Full Stack Architect for Live Service MMO

A leading gaming company is looking for an experienced Lead Full-Stack Developer to build and scale the architecture behind a large-scale live-service MMO. In this role, you'll lead a growing team, drive key architectural decisions, and ensure the systems you develop support player engagement and community inter ...

Senior Software Engineer (C#) · Sunderland, UK ·

The opportunity We're looking for a Senior Developer/engineer who's genuinely ready for a senior role — someone who can own the full software lifecycle, shape technical direction, and raise the bar for the team around them. This isn't a stepping stone. It's a role where your experience ...

.Net Developer in Milton Keynes Ascendion

.Net Developer Milton Keynes, United Kingdom Posted 9 months ago Tech stack C APIs Docker React Web API TypeScript REST web Key Responsibilities: Design, develop, and mainta ...

Senior .NET Developer in Milton Keynes Hireful

We are looking for a Senior Full Stack Developer We want someone who is eager to take ownership of exciting challenges and deliver high-quality, maintainable code. You will be responsible for both front-end and back-end development, so a strong understanding of each layer of the software development st ...

Lead Technical Artist

Frontier is an independent video game developer and publisher, crafting immersive gaming experiences with fun gameplay and unparalleled artistic quality. Frontier captivates players worldwide with authentic game worlds. The studio is based in Cambridge (UK) and focuses on nurturing its existing portfolio w ...

Senior Full Stack Engineer

Are you an experienced engineer passionate about leveraging AI to redefine production stability at a global scale? We are seeking a Senior Full‑Stack Engineer to lead the development of next‑generation, AI‑enabled tooling within our Production Management division. This is a strategic position for a ...

Senior UI Developer £165k + Bonus London

Title – Senior/Lead UI Developer Client – Fintech Start-Up (Trading) Rate - Up to £165,000 + Bonus Location – London/Hybrid About the Company: Our client is a rap ...

Lead Technical Artist

Frontier is an independent video game developer and publisher, crafting immersive gaming experiences with fun gameplay and unparalleled artistic quality. Frontier captivates players worldwide with authentic game worlds. The studio is based in Cambridge (UK) and focuses on nurturing its existing portfolio w ...

Senior Full Stack Engineer

Are you an experienced engineer passionate about leveraging AI to redefine production stability at a global scale? We are seeking a Senior Full‑Stack Engineer to lead the development of next‑generation, AI‑enabled tooling within our Production Management division. This is a strategic position for a ...

Manager, Forward Deployed Engineering London

About the teamOpenAI’s Forward Deployed Engineering team partners with customers to turn research breakthroughs into production systems. We operate at the intersection of customer delivery and core platform development.About the roleAs an FDE manager, you’ll lead FDEs through ...

Manager, Forward Deployed Engineering London

About the teamOpenAI’s Forward Deployed Engineering team partners with customers to turn research breakthroughs into production systems. We operate at the intersection of customer delivery and core platform development.About the roleAs an FDE manager, you’ll lead FDEs through ...

Full Stack Engineer AI Enabled – Senior Vice President

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we ...

Full Stack Engineer AI Enabled – Senior Vice President

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we ...

Lead Product Data Scientist Operations Decision Systems

British Airways is looking for a Principal Product Data Scientist in London. You will join the Operations Delivery Intelligence directorate, focusing on creating decision-support software using advanced machine learning techniques. The ideal candidate will have a master's degree or extensive experience in data s ...

Security Cleared Senior Software Engineer: Cloud & Backend

Forwardrole is looking for a Senior Software Engineer based in Cheltenham, England. In this role, you'll design, develop, and maintain vital infrastructure while tackling complex challenges and using cutting-edge technology. The ideal candidate will have strong hands-on experience in Java, JavaScript, or Python, ...

Senior Full Stack Engineer: Ground Floor AI Platform Lead

RGH-Global Ltd is seeking a Senior Full-Stack Software Engineer for a pivotal greenfield project in London. The position involves building a customer-facing platform, backend automation, and architecting technical foundations from the ground up. Ideal candidates will have over 5 years of experience, strong skill ...

Cloud Native Software Engineer — CI/CD & Security

A leading consulting firm in Leeds is seeking talented software engineers to develop traditional and serverless applications in an agile environment. Candidates should have experience in Java, Typescript, C#, Python, or Go, and familiarity with cloud technologies such as AWS or Azure. The position offers a compe ...

Robotics Software Engineer: Rotations & Real World Impact

A technology innovator in robotics is seeking a Graduate Software Engineer in Wallingford, England. This exciting role involves building systems for autonomous robots, contributing from day one. You will work with advanced technologies like Python, C++, and cloud infrastructure, gaining valuable experience in re ...

DV Cleared Data Science Engineer Cloud & ML

A prominent technology recruitment company is seeking a Data Science Engineer to support a major public sector programme in London or Manchester. The role involves designing and maintaining scalable data processing systems, collaborating with multidisciplinary teams, and requires DV Clearance. Candidates should ...

Defence Software Engineer Edge AI & DevSecOps

A technology firm based in Romsey seeks a passionate Software Engineer to enhance agile delivery within the Defence Information Advantage team. The role requires proficiency in programming languages like Python, Java, or Rust and a degree in a STEM field. You'll work on cutting-edge technologies, collaborate wit ...

Quantum Compiler Engineer — Scientific Software Architect

A leading technology company in the UK is seeking a creative Scientific Software Engineer. You will develop state-of-the-art simulation tools and compilers for quantum computing, collaborating with a team of experts. The role involves designing novel programming languages and integrating existing simulation tool ...

Platform Engineer — AI Driven Backend & Pipelines

A tech startup is seeking a Software Engineer to build and maintain a shared platform that supports AI solutions. You will develop APIs, frameworks, and data services while collaborating with product engineers to enhance functionality. Candidates should have extensive experience in Python and AWS, alongside a st ...

Finance Tech Intern Data Interfaces & Client Solutions

A growing fintech solutions provider in London is seeking a talented intern to join their client services team. The successful candidate will engage in client-specific development tasks, including system testing and gathering requirements, impacting software solutions. An undergraduate degree in Computer Science ...

AI Vision Software Engineer – Defence Applications

A leading AI start-up in the UK is seeking software engineers, including recent graduates, to work on innovative AI-based vision and sensing systems. Candidates should possess a 1st or 2.1 degree in Computer Science or similar, with experience in Python and machine learning libraries. The role is fully onsite, l ...

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    Lead Software Developer Python Jobs in United Kingdom Job Search Guide, Trends and Insights