innovative ideas into production. Ensuring code quality through testing, documentation, and peer review. 🎯 What we’re looking for: 4+ years’ experience building enterprise-grade applications. Strong backend skills in Python (FastAPI, Flask) with experience designing APIs and integrating databases (e.g. GraphDB, CosmosDB, SQL). Solid frontend development skills in React, TypeScript/JavaScript, HTML, and CSS . Experience developing More ❯
london, south east england, united kingdom Hybrid / WFH Options
Harnham
innovative ideas into production. Ensuring code quality through testing, documentation, and peer review. 🎯 What we’re looking for: 4+ years’ experience building enterprise-grade applications. Strong backend skills in Python (FastAPI, Flask) with experience designing APIs and integrating databases (e.g. GraphDB, CosmosDB, SQL). Solid frontend development skills in React, TypeScript/JavaScript, HTML, and CSS . Experience developing More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Harnham
innovative ideas into production. Ensuring code quality through testing, documentation, and peer review. 🎯 What we’re looking for: 4+ years’ experience building enterprise-grade applications. Strong backend skills in Python (FastAPI, Flask) with experience designing APIs and integrating databases (e.g. GraphDB, CosmosDB, SQL). Solid frontend development skills in React, TypeScript/JavaScript, HTML, and CSS . Experience developing More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Harnham
innovative ideas into production. Ensuring code quality through testing, documentation, and peer review. 🎯 What we’re looking for: 4+ years’ experience building enterprise-grade applications. Strong backend skills in Python (FastAPI, Flask) with experience designing APIs and integrating databases (e.g. GraphDB, CosmosDB, SQL). Solid frontend development skills in React, TypeScript/JavaScript, HTML, and CSS . Experience developing More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Paradigm Talent
Role: Senior Backend Engineer (Product) Location: Hybrid - London Compensation: Up to £130,000 + equity We’re supporting a next-generation AI company developing a groundbreaking platform that automatically creates and scales immersive 3D environments. The team is bringing world-class technology from research to reality — turning complex creative workflows into seamless, intelligent systems. As a Senior Backend Engineer … product, frontend, and ML teams to deliver features that delight and scale. You should have 5+ years of experience developing production-grade backend systems and APIs. Strong skills in Python (FastAPI or similar) and modern cloud infrastructure. Deep understanding of system design, scalability, and reliability . A product-oriented mindset — you design with end users and UX impact in More ❯
Role: Senior Backend Engineer (Product) Location: Hybrid - London Compensation: Up to £130,000 + equity We’re supporting a next-generation AI company developing a groundbreaking platform that automatically creates and scales immersive 3D environments. The team is bringing world-class technology from research to reality — turning complex creative workflows into seamless, intelligent systems. As a Senior Backend Engineer … product, frontend, and ML teams to deliver features that delight and scale. You should have 5+ years of experience developing production-grade backend systems and APIs. Strong skills in Python (FastAPI or similar) and modern cloud infrastructure. Deep understanding of system design, scalability, and reliability . A product-oriented mindset — you design with end users and UX impact in More ❯
london, south east england, united kingdom Hybrid / WFH Options
Paradigm Talent
Role: Senior Backend Engineer (Product) Location: Hybrid - London Compensation: Up to £130,000 + equity We’re supporting a next-generation AI company developing a groundbreaking platform that automatically creates and scales immersive 3D environments. The team is bringing world-class technology from research to reality — turning complex creative workflows into seamless, intelligent systems. As a Senior Backend Engineer … product, frontend, and ML teams to deliver features that delight and scale. You should have 5+ years of experience developing production-grade backend systems and APIs. Strong skills in Python (FastAPI or similar) and modern cloud infrastructure. Deep understanding of system design, scalability, and reliability . A product-oriented mindset — you design with end users and UX impact in More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Paradigm Talent
Role: Senior Backend Engineer (Product) Location: Hybrid - London Compensation: Up to £130,000 + equity We’re supporting a next-generation AI company developing a groundbreaking platform that automatically creates and scales immersive 3D environments. The team is bringing world-class technology from research to reality — turning complex creative workflows into seamless, intelligent systems. As a Senior Backend Engineer … product, frontend, and ML teams to deliver features that delight and scale. You should have 5+ years of experience developing production-grade backend systems and APIs. Strong skills in Python (FastAPI or similar) and modern cloud infrastructure. Deep understanding of system design, scalability, and reliability . A product-oriented mindset — you design with end users and UX impact in More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Paradigm Talent
Role: Senior Backend Engineer (Product) Location: Hybrid - London Compensation: Up to £130,000 + equity We’re supporting a next-generation AI company developing a groundbreaking platform that automatically creates and scales immersive 3D environments. The team is bringing world-class technology from research to reality — turning complex creative workflows into seamless, intelligent systems. As a Senior Backend Engineer … product, frontend, and ML teams to deliver features that delight and scale. You should have 5+ years of experience developing production-grade backend systems and APIs. Strong skills in Python (FastAPI or similar) and modern cloud infrastructure. Deep understanding of system design, scalability, and reliability . A product-oriented mindset — you design with end users and UX impact in More ❯
Senior Software Developer - Java/Python with Delphi Were looking for an experienced Software Engineer (Java/Python) to join a high-profile government project focused on modernising and integrating complex systems within a secure environment. Strong experience developing with Java and/or Python Experience with AWS cloud environments and CI/CD pipelines (Jenkins More ❯
Senior Engineer - London - 140k - AWS - Python - Snowflake - Hybrid A leading global trading firm is seeking a Senior Engineer to join its Front Office Technology team and drive the rebuild of the E Tools US Power Analytics Platform. This high-impact role offers the chance to work side by side with traders and commercial teams to deliver a … next-generation, cloud-native analytics platform powering real-time trading decisions. Key Responsibilities: - Partner with trading and commercial teams to engineer and optimise analytical models and trading processes. - Build and maintain Python-based services, APIs, and reusable analytic components. - Design cloud-native tools and dashboards to support supply/demand modelling and market data analysis. - Collaborate with Front … Office technologists across global teams (London, Houston, Stamford) to deliver robust, scalable solutions. What You'll Bring: - Strong professional experience with Python and a deep understanding of object-oriented programming. - Advanced SQL knowledge and experience with relational databases. - Exposure to AWS and Snowflake technologies. - Strong communication skills and the ability to engage effectively with both technical and commercial stakeholders. More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Nigel Frank International
Senior Engineer - London - 140k - AWS - Python - Snowflake - Hybrid A leading global trading firm is seeking a Senior Engineer to join its Front Office Technology team and drive the rebuild of the E Tools US Power Analytics Platform. This high-impact role offers the chance to work side by side with traders and commercial teams to deliver a … next-generation, cloud-native analytics platform powering real-time trading decisions. Key Responsibilities: - Partner with trading and commercial teams to engineer and optimise analytical models and trading processes. - Build and maintain Python-based services, APIs, and reusable analytic components. - Design cloud-native tools and dashboards to support supply/demand modelling and market data analysis. - Collaborate with Front … Office technologists across global teams (London, Houston, Stamford) to deliver robust, scalable solutions. What You'll Bring: - Strong professional experience with Python and a deep understanding of object-oriented programming. - Advanced SQL knowledge and experience with relational databases. - Exposure to AWS and Snowflake technologies. - Strong communication skills and the ability to engage effectively with both technical and commercial stakeholders. More ❯
Manchester, Lancashire, United Kingdom Hybrid / WFH Options
Contract C++/Python Developer - Machine Learning, GPU Integration, Docker (Remote, UK-Based) Location: Fully Remote (UK-based only) Contract Length: Initial 6 months (likely extension) Day Rate: £450 per day, Outside IR35 Start Date: ASAP Overview We re working with a cutting-edge technology company that s developing advanced machine learning products at scale. They re looking … for an experienced C++/Python Developer with strong GPU integration experience to support the integration of a Python-based application into GPU kernels, helping accelerate complex ML workloads and workflows. This is a hands-on contract role for someone who thrives at the intersection of high-performance C++ development , machine learning , and infrastructure automation - working with modern … tooling and pushing the limits of GPU-based compute. Key Responsibilities Integrate and optimise Python-based applications with GPU kernels (C++ and CUDA C). Work on performance tuning and low-level GPU memory management. Build and maintain containerised development and deployment workflows using Docker. Develop APIs and integrate with existing machine learning pipelines and back-end systems. Collaborate More ❯
london, south east england, united kingdom Hybrid / WFH Options
Atarus
Founding Engineer – London – AI Start-up Location: London (Hybrid) Compensation: Up to £150K Atarus have partnered with a rapidly growing YC-backed AI start-up looking to hire a Full Stack Engineer . This is an opportunity to join at the ground floor of a company that’s already secured a strong seed round, launched with enterprise clients … and scaling decisions Experimenting rapidly and contributing to a culture of innovation and ownership Helping shape the technical direction and engineering culture of the company 🛠️ Tech Stack Golang/Python | TypeScript | Next.js | AWS | FastAPI | LangChain You don’t need to know every tool, they’re looking for curious builders who love to learn fast. 💰 Compensation & Equity There are no More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Atarus
Founding Engineer – London – AI Start-up Location: London (Hybrid) Compensation: Up to £150K Atarus have partnered with a rapidly growing YC-backed AI start-up looking to hire a Full Stack Engineer . This is an opportunity to join at the ground floor of a company that’s already secured a strong seed round, launched with enterprise clients … and scaling decisions Experimenting rapidly and contributing to a culture of innovation and ownership Helping shape the technical direction and engineering culture of the company 🛠️ Tech Stack Golang/Python | TypeScript | Next.js | AWS | FastAPI | LangChain You don’t need to know every tool, they’re looking for curious builders who love to learn fast. 💰 Compensation & Equity There are no More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Atarus
Founding Engineer – London – AI Start-up Location: London (Hybrid) Compensation: Up to £150K Atarus have partnered with a rapidly growing YC-backed AI start-up looking to hire a Full Stack Engineer . This is an opportunity to join at the ground floor of a company that’s already secured a strong seed round, launched with enterprise clients … and scaling decisions Experimenting rapidly and contributing to a culture of innovation and ownership Helping shape the technical direction and engineering culture of the company 🛠️ Tech Stack Golang/Python | TypeScript | Next.js | AWS | FastAPI | LangChain You don’t need to know every tool, they’re looking for curious builders who love to learn fast. 💰 Compensation & Equity There are no More ❯
Croydon, Surrey, England, United Kingdom Hybrid / WFH Options
eTeam Inc
Job Title: Senior Engineer with Node.js and Python or Back End (Java and ideally Kafka) Max rate: £537/Day on Umbrella Location: Croydon (Hybrid) Clearance required: SC Transfer (Active SC only ) Contract Duration: 05 months Experience of Java Experience of Spring framework or equivalent. Knowledge of software design patterns and when to apply them Excellent knowledge of More ❯
work experience Experience of the full lifecycle of design, implementation and running of enterprise software solutions involving cross functional team collaboration Expertise in a major programming language such as Python and/or Go, and associated tooling (Git, Maven, IDEs, Jenkins, Bitbucket etc) Expertise in designing and implementing secure APIs and libraries. Experience in Generative AI, LLM frameworks, LLM More ❯
Full-Stack Engineer (React/Python/AI) Location: London (Hybrid) Salary: £100,000 + Equity About the Company: An early-stage, well-funded tech startup building AI-powered software to help businesses make smarter decisions and improve operational performance . The team is small, highly technical, and mission-driven, giving you the chance to shape both the … product and engineering culture. The Role: We’re looking for a Full-Stack Engineer to join a fast-moving, collaborative team. You’ll work across the stack — crafting sleek UIs in React , building scalable back-end systems in Python , and collaborating with AI specialists to deliver intelligent, high-impact features. Key Responsibilities: Build and maintain end-to-end … product features used by enterprise customers. Develop modern, responsive interfaces using React/Next.js . Design and optimize APIs, data pipelines, and integrations using Python (FastAPI/Django) . Collaborate with design, product, and AI teams to deliver new functionality quickly and reliably. Contribute to architectural decisions, system scalability, and engineering best practices. What We’re Looking For: Proven More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Explore Group
Full-Stack Engineer (React/Python/AI) Location: London (Hybrid) Salary: £100,000 + Equity About the Company: An early-stage, well-funded tech startup building AI-powered software to help businesses make smarter decisions and improve operational performance . The team is small, highly technical, and mission-driven, giving you the chance to shape both the … product and engineering culture. The Role: We’re looking for a Full-Stack Engineer to join a fast-moving, collaborative team. You’ll work across the stack — crafting sleek UIs in React , building scalable back-end systems in Python , and collaborating with AI specialists to deliver intelligent, high-impact features. Key Responsibilities: Build and maintain end-to-end … product features used by enterprise customers. Develop modern, responsive interfaces using React/Next.js . Design and optimize APIs, data pipelines, and integrations using Python (FastAPI/Django) . Collaborate with design, product, and AI teams to deliver new functionality quickly and reliably. Contribute to architectural decisions, system scalability, and engineering best practices. What We’re Looking For: Proven More ❯
london, south east england, united kingdom Hybrid / WFH Options
Explore Group
Full-Stack Engineer (React/Python/AI) Location: London (Hybrid) Salary: £100,000 + Equity About the Company: An early-stage, well-funded tech startup building AI-powered software to help businesses make smarter decisions and improve operational performance . The team is small, highly technical, and mission-driven, giving you the chance to shape both the … product and engineering culture. The Role: We’re looking for a Full-Stack Engineer to join a fast-moving, collaborative team. You’ll work across the stack — crafting sleek UIs in React , building scalable back-end systems in Python , and collaborating with AI specialists to deliver intelligent, high-impact features. Key Responsibilities: Build and maintain end-to-end … product features used by enterprise customers. Develop modern, responsive interfaces using React/Next.js . Design and optimize APIs, data pipelines, and integrations using Python (FastAPI/Django) . Collaborate with design, product, and AI teams to deliver new functionality quickly and reliably. Contribute to architectural decisions, system scalability, and engineering best practices. What We’re Looking For: Proven More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Explore Group
Full-Stack Engineer (React/Python/AI) Location: London (Hybrid) Salary: £100,000 + Equity About the Company: An early-stage, well-funded tech startup building AI-powered software to help businesses make smarter decisions and improve operational performance . The team is small, highly technical, and mission-driven, giving you the chance to shape both the … product and engineering culture. The Role: We’re looking for a Full-Stack Engineer to join a fast-moving, collaborative team. You’ll work across the stack — crafting sleek UIs in React , building scalable back-end systems in Python , and collaborating with AI specialists to deliver intelligent, high-impact features. Key Responsibilities: Build and maintain end-to-end … product features used by enterprise customers. Develop modern, responsive interfaces using React/Next.js . Design and optimize APIs, data pipelines, and integrations using Python (FastAPI/Django) . Collaborate with design, product, and AI teams to deliver new functionality quickly and reliably. Contribute to architectural decisions, system scalability, and engineering best practices. What We’re Looking For: Proven More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Explore Group
Full-Stack Engineer (React/Python/AI) Location: London (Hybrid) Salary: £100,000 + Equity About the Company: An early-stage, well-funded tech startup building AI-powered software to help businesses make smarter decisions and improve operational performance . The team is small, highly technical, and mission-driven, giving you the chance to shape both the … product and engineering culture. The Role: We’re looking for a Full-Stack Engineer to join a fast-moving, collaborative team. You’ll work across the stack — crafting sleek UIs in React , building scalable back-end systems in Python , and collaborating with AI specialists to deliver intelligent, high-impact features. Key Responsibilities: Build and maintain end-to-end … product features used by enterprise customers. Develop modern, responsive interfaces using React/Next.js . Design and optimize APIs, data pipelines, and integrations using Python (FastAPI/Django) . Collaborate with design, product, and AI teams to deliver new functionality quickly and reliably. Contribute to architectural decisions, system scalability, and engineering best practices. What We’re Looking For: Proven More ❯
Liverpool, Merseyside, United Kingdom Hybrid / WFH Options
Working closely with the Development teams, Architecture team, and Operations teams, the DevOps Engineer will be responsible for designing, implementing, and maintaining automated deployment pipelines, monitoring solutions, and infrastructure as code practices that enable rapid, reliable software delivery. Previous experience of working in a similar role and in the financial sector or an ability to provide examples of working … in a service critical environment are advantageous. As a DevOps Engineer you will be responsible for ensuring all deployment processes and automation meet regulatory requirements, namely PCI DSS, ISO27001, and Cyber Security Essentials. This will include the introduction of standards to ensure conformity within the PayPoint development and deployment workflows. This role is Hybrid with a requirement to be … DevOps, GitHub Actions) Strong knowledge of Azure cloud services and deployment models Experience with monitoring and logging tools (Azure Monitor, Prometheus, Grafana stack) Proficiency in scripting languages (PowerShell, Bash, Python) Knowledge of security best practices in DevOps and SecDevOps principles Experience with agile development methodologies It would be great if you have the following Experience with Azure DevOps administration More ❯
I am working with an exciting AI startup who are turning complex video into searchable insights - they're looking for a Software Engineer to work on the backend. Youll design scalable systems, build APIs, and deploy AI modelsturning cutting-edge research into a production-ready platform. Remote : UK Salary : Up to 50k + 1% Equity What Youll Do Build … CD pipelines and observability tools Collaborate with AI researchers to integrate models into production Take a product-first approach to engineering What Youll Need 2-4 years experience with Python (FastAPI/Flask) Experience with distributed systems and cloud platforms Proficiency in database design (e.g. PostgreSQL) Familiarity with Docker, IaC tools (Terraform), and monitoring stacks Start-up mindset Bonus More ❯