29,300+ Python Fastapi Developer Jobs in UK — Top Companies Hiring July 2026

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Full stack Engineer

Responsibilities:Contribute your technical skills to a team of talented engineers to help innovate while keeping the platform stable, secure, and reliable.Work within a diverse team on exciting engineering initiatives, driving secure and efficient outcomes using the la ...

Lead Platform Engineer

Responsibilities:Collaborate with Principal Engineers and Product Managers to define the direction of platform and automation capabilities, shape team ways of working, and contribute to innovation and adoption. Communicate progress, results, and insights to stakeholders, and guide reg ...

Technical Lead – Enterprise Data Platforms

Technical Lead – Enterprise Data PlatformsWe are searching for an experienced Technical Lead – Enterprise Data PlatformsMake an Impact at RSM UK We are seeking a Technical Lead to join our Data, Analytics & AI team within a professional services environment. Operating across the firm’s enterpris ...

Dev Ops Manager

Dev Ops Manager About System1?In the words of one of our senior clients recently…“Market Research has changed more in the last 3 years than the previous 40”System1 is the leading global Marketing decision making platform. We help brands measure an ...

Site Reliability Engineer

Site Reliability Engineer (SRE)📍 London (Hybrid – 2–8 days per month in office)💰 £50,000 per annum📈 Clear progression to Mid-Level SRE within 18 monthsWe’re working with a growing, engineering-led organisation looking to hire a Site Reliability Engineer who enjoys solving real platform pr ...

Site Reliability Engineer

Site Reliability Engineer (SRE)📍 London (Hybrid – 2–8 days per month in office)💰 £50,000 per annum📈 Clear progression to Mid-Level SRE within 18 monthsWe’re working with a growing, engineering-led organisation looking to hire a Site Reliability Engineer who enjoys solving real platform pr ...

Simulation Engineer

As a Simulation Engineer working in Dematic's Solution & Delivery Optimization organization, the individual will be responsible for designing and developing accurate and valid computer-based high-fidelity models of standardized material-handling systems. In addition, the Simulation Engineer will conduct experime ...

AI Specialist

DescriptionRole summaryAn important role in helping to scale Syneos Health Communications’ generative AI capabilities. Working centrally across advertising, PR and med comms teams this will involve a mix of technical ability, internal collaboration and advocacy, as well as client facing ca ...

Simulation Engineer

As a Simulation Engineer working in Dematic's Solution & Delivery Optimization organization, the individual will be responsible for designing and developing accurate and valid computer-based high-fidelity models of standardized material-handling systems. In addition, the Simulation Engineer will conduct experime ...

Support Engineer

We are looking for a Level 2 Support Engineer with a junior development background who is keen to grow into a hybrid role spanning technical support and QA.You’ll act as a technical escalation point for Level 1 support, working closely with the ...

Support Engineer

DescriptionWe are looking for a Level 2 Support Engineer with a junior development background who is keen to grow into a hybrid role spanning technical support and QA.You'll act as a technical escalation point for Level 1 support, working closely with the Governance Lead, ...

Lead Platform Engineer

Responsibilities:Collaborate with Principal Engineers and Product Managers to define the direction of platform and automation capabilities, shape team ways of working, and contribute to innovation and adoption. Communicate progress, results, and insights to stakeholders, and guide reg ...

Site Reliability Engineer

Site Reliability Engineer (SRE)📍 London (Hybrid – 2–8 days per month in office)💰 £50,000 per annum📈 Clear progression to Mid-Level SRE within 18 monthsWe’re working with a growing, engineering-led organisation looking to hire a Site Reliability Engineer who enjoys solving real platform pr ...

Full stack Java Developer for Systematic & Credit Portfolio Trading Tools, Assistant Vice President

Citi is seeking a highly motivated and curious full-stack engineer work embedded within the Systematic & Credit Portfolio Trading business and build out a first-class ecosystem of trading tools. This role offers a unique opportunity for in-person collaboration with traders, quants, and product development ...

Simulation Engineer

As a Simulation Engineer working in Dematic's Solution & Delivery Optimization organization, the individual will be responsible for designing and developing accurate and valid computer-based high-fidelity models of standardized material-handling systems. In addition, the Simulation Engineer will conduct experime ...

AI Specialist

DescriptionRole summaryAn important role in helping to scale Syneos Health Communications’ generative AI capabilities. Working centrally across advertising, PR and med comms teams this will involve a mix of technical ability, internal collaboration and advocacy, as well as client facing ca ...

Simulation Engineer

As a Simulation Engineer working in Dematic's Solution & Delivery Optimization organization, the individual will be responsible for designing and developing accurate and valid computer-based high-fidelity models of standardized material-handling systems. In addition, the Simulation Engineer will conduct experime ...

Support Engineer

We are looking for a Level 2 Support Engineer with a junior development background who is keen to grow into a hybrid role spanning technical support and QA.You’ll act as a technical escalation point for Level 1 support, working closely with the ...

Full stack Engineer

Responsibilities:Contribute your technical skills to a team of talented engineers to help innovate while keeping the platform stable, secure, and reliable.Work within a diverse team on exciting engineering initiatives, driving secure and efficient outcomes using the la ...

Technical Lead – Enterprise Data Platforms

Technical Lead – Enterprise Data PlatformsWe are searching for an experienced Technical Lead – Enterprise Data PlatformsMake an Impact at RSM UK We are seeking a Technical Lead to join our Data, Analytics & AI team within a professional services environment. Operating across the firm’s enterpris ...

Senior Software Developer, Creature Performance (Brahma AI A DNEG Dedicated Unit of Brahma)

Description Position at DNEG We are creating a team to push the boundaries of Creatures technology in Visual Effects and Feature Animation. Together with our artists we are sketching our vision of the future in Creatures and define the development that will turn such vision into a reality.Th ...

Site Reliability Engineer

Site Reliability Engineer (SRE)📍 London (Hybrid – 2–8 days per month in office)💰 £50,000 per annum📈 Clear progression to Mid-Level SRE within 18 monthsWe’re working with a growing, engineering-led organisation looking to hire a Site Reliability Engineer who enjoys solving real platform pr ...

Site Reliability Engineer

Site Reliability Engineer (SRE)📍 London (Hybrid – 2–8 days per month in office)💰 £50,000 per annum📈 Clear progression to Mid-Level SRE within 18 monthsWe’re working with a growing, engineering-led organisation looking to hire a Site Reliability Engineer who enjoys solving real platform pr ...

Technical Lead – Enterprise Data Platforms

Technical Lead – Enterprise Data PlatformsWe are searching for an experienced Technical Lead – Enterprise Data PlatformsMake an Impact at RSM UK We are seeking a Technical Lead to join our Data, Analytics & AI team within a professional services environment. Operating across the firm’s enterpris ...

Dev Ops Manager

Dev Ops Manager About System1?In the words of one of our senior clients recently…“Market Research has changed more in the last 3 years than the previous 40”System1 is the leading global Marketing decision making platform. We help brands measure an ...

Senior Cloud Engineer

Description : Senior Cloud Engineer (AWS, EKS, Kubernetes) About the Role:We are seeking an experienced and passionate Cloud Engineer to join our team and manage our AWS cloud infrastructure. You will be responsible for designing, implementing, and maintaining a robust and s ...

Developer Engagement Representative Creator Events Program, UK (Part Time Contract)

Developer Engagement Representative - Creator Events Program, UK (Part Time Contract)United KingdomSafety & SupportID: 6328Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our ...

Developer Engagement Representative Creator Events Program, UK (Part Time Contract)

Developer Engagement Representative - Creator Events Program, UK (Part Time Contract)United KingdomSafety & SupportID: 6328Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our ...

FX Options Quantitative Developer (Assistant Vice President)

By Joining Citi, you will become part of a global organisation whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. **Team/Role Overview** Citi is looking for a Quantitative Developer to join the FX o ...

Senior Software Test Engineer

**Join us at Entrust ** At Entrust, we’re shaping the future of identity centric security solutions. From our comprehensive portfolio of solutions to our flexible, global workplace, we empower careers, foster collaboration, and build solutions that help keep the world moving safely. <b ...

Senior Software Test Engineer

**Join us at Entrust ** At Entrust, we’re shaping the future of identity centric security solutions. From our comprehensive portfolio of solutions to our flexible, global workplace, we empower careers, foster collaboration, and build solutions that help keep the world moving safely. <b ...

Project Quantity Surveyor

The Quantity Surveyor's RoleThe successful Quantity Surveyor will join a growing, design-led property developer based in Central London, working on high-quality residential and mixed-use schemes across the capital.This is a brilliant opportunity for a Quantity Surveyor who wants to move closer to ...

Quantity Surveyor

Quantity Surveyor – High-End Sustainable Residential DeveloperLocation: HertfordshireSalary: Up to £60k plus package DOEI'm currently working with a growing SME residential developer who specialise in delivering high-quality, sustainable homes across the South East. Due to continued expansion ...

Burberry Product Developer Childrenswear (Maternity Cover)

Job Details INTRODUCTIONAt Burberry, we believe creativity opens spaces. Our purpose is to unlock the power of imagination to push boundaries an ...

Experienced/Senior Online Developer Tech Team

We want you to #JOINTHEREBELLION! For 30 years we’ve been independently developing and publishing incredible video games at our multiple studios founded by Jason & Chris Kingsley, but Rebellion is more than just games. We have our own film studio, we create board games, publish books, and throug ...

Software Developer C#.Net Quant Trading

Software Developer / Engineer (C# .Net) Newcastle onsite to £120k+Join a highly regarded Financial Technology Consultancy developing sophisticated software used by Investment Banks, Hedge Funds and Asset Managers. This is an opportunity to work at the intersection of software engineering, quanti ...

Fullstack Backend Developer with C#.net

Job Description Fullstack Backend Developer with C# .net Working as part of the Digital team, you'll be responsible for the ongoing development and improvements to an eCommerce website as well as other internal applications for this award-winning Travel Company.</ ...

Lead Software Developer C# Trading Systems

We are partnering with a rapidly growing financial markets firm seeking an exceptionalTechnical Lead / Lead Software Engineerto take full ownership of their in-house trading and brokerage technology. This is ahigh-impact leadership positionsuited to someone who thrives in a hands-on technical en ...

Associate Manager Cloud Applications Developer 1

Job Description:DXC Technology is committed to building diverse, inclusive teams. We welcome applications from all backgrounds and particularly encourage interest from women, underrepresented groups, and neurodivergent candidates. We offer reasonable adjustments throughout the hiring process and ...

Luxury Real Estate Developer Procurement Manager

AHS, a premier luxury real estate developer, is seeking a skilled Procurement Manager to lead and oversee our procurement processes. The successful candidate will be responsible for sourcing, negotiating, and managing supplier relationships to ensure the timely delivery of high-quality materials and services ...

Freelance Mobile App Developer (iOS / Android)

Mindrift is looking for skilled Mobile App Developers (React Native, Flutter, Swift, or Kotlin) to join the Tendem project () and build native and cross-platform mobile application ...

Power Apps Developer (Power BI specialism)

Salary:  £60k to £70kMethods is recruiting for a Power Apps Developer (Power BI specialism) to join our team within the Public Sector Business unit on a permanent basis.This role will be mainly remote but require flexibility to travel to client sites, and our of ...

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