senior backend developer jobs in London

Senior Backend Developer Full-time Inside IR35 Hybrid 1 office day London Farringdon office address: 47-53 Charterhouse St, London, EC1M 6PB Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at senior levels who are passionate about crafting exceptional...

DescriptionWho are YapilyWhy we exist, and where we’re headed:Our Mission: Redefining how the world interacts with value.Our Vision: A world without financial frictionOur Purpose: To empower everyone to access and move valueAt Yapily, we’re building a powerful, scalable, and secure open banking infrastructure that redefines how the world interacts with...

Help build and operate reliable, scalable and secure digital services that support UK businesses and trade . Department for Business, Innovation, Science and Trade (BIST), in partnership with Inspire People, is seeking a Senior Backend Engineer. Whilst the team primarily develops in Python, we welcome applications from experienced backend developers with...

About the job LotusFlare is a provider of cloud-native SaaS products based in the heart of Silicon Valley. Founded by the team that helped Facebook reach over one billion users, LotusFlare was founded to make affordable mobile communications available to everyone on Earth.Today, LotusFlare focuses on designing, building, and continuously evolving a...

Location: London, EC1M 6PB Contract: 6 Month Contract Hours: Full-time, 37 hours per week Hybrid: 1 day per week onsite in London Rate: TBC Join a dynamic energy provider dedicated to delivering sustainable solutions across the UK. We are looking for an enthusiastic and resourceful Senior Backend Developer who is passionate about building exceptional...

Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at senior levels who are passionate about crafting exceptional products. Initially it will be a six-month contract but there is potential for it to be extended. The role is Hybrid, with one day a week being based in...

Job descriptionWaracle are looking for a Senior Developer for an exciting new role joining our world-class digital technology consultancy and home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation.We work with ambitious clients to help them solve their biggest business and customer challenges. We help our...

Location: London, EC1M 6PB Contract: 6 Month Contract Hours: Full-time, 37 hours per week Hybrid: 1 day per week onsite in London Rate: TBC Join a dynamic energy provider dedicated to delivering sustainable solutions across the UK. We are looking for an enthusiastic and resourceful Senior Backend Developer who is passionate about building exceptional...

London Farringdon office address: 47-53 Charterhouse St, London, EC1M 6PB Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at senior levels who are passionate about crafting exceptional products. Initially it will be a six-month contract but there is potential for it to...

Location: London, EC1M 6PBContract: 6 Month ContractHours: Full-time, 37 hours per weekHybrid: 1 day per week onsite in LondonRate: TBCJoin a dynamic energy provider dedicated to delivering sustainable solutions across the UK. We are looking for an enthusiastic and resourceful Senior Backend Developer who is passionate about building exceptional products and...

About Nebius: Nebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure. Built by engineers, for engineers....

DescriptionUpdraft. Helping you make changes that pay off.Updraft is an award winning, FCA-authorised, high-growth fintech based in London. Our vision is to revolutionise the way people spend and think about money, by automating the day to day decisions involved in managing money and mainstream borrowings like credit cards, overdrafts and other loans. A 360...

Imagine a future where everyone has instant, low-cost access to powerful computing resources. We're building a fully featured European cloud computing platform - with everything one needs to run, scale, and deploy applications and workloads. In addition, our infrastructure runs on 100% renewable energy. We’re ambitious, curious, and gutsy doers. We...

Updraft. Helping you make changes that pay off.Updraft is an award winning, FCA-authorised, high-growth fintech based in London. Our vision is to revolutionise the way people spend and think about money, by automating the day to day decisions involved in managing money and mainstream borrowings like credit cards, overdrafts and other loans.A 360 degree...

Base pay range Direct message the job poster from Fruition Group Location: London - 1x a month Salary: Up to £95,000 (D.O.E) + benefits Fruition Group working with a leading Insurtech unicorn on a mission to transform the insurance industry. Their products have already generated millions in revenue, and now they're investing heavily in new innovations that...

Senior Backend Developer for Video on Demand and Live Streaming (GoLang) Contract 12 months OUTSIDE IR35 Remote (UK)If you are interested in applying for this job, please make sure you meet the following requirements as listed below.A leading video platform is seeking experienced Senior Backend Developers with expertise in GoLang to contribute to the...

London (Hybrid – 1 day per month in the office) Basic salary £80k to £95k + strong package An exciting opportunity for a Senior Backend Developer to join a fast-growing, well-funded technology business that’s scaling rapidly and investing heavily in its engineering teams. This is a role for someone who enjoys building reliable, well-designed backend...

Job Reference: NJ0416Date Posted: 24 September 2026Recruiter: Nexus Jobs LimitedLocation: LondonRemote Working: 100% remote working possibleSalary: 55,000 to 80,000Sector: I.T. & CommunicationsJob Type: PermanentWork Hours: Full TimeContact: Jas GujralEmail: : Apply for this job nowJob DescriptionSenior Backend Developer with C# .net Working as part of...

Job Reference: Nj0415Date Posted: 24 September 2026Recruiter: Nexus Jobs LimitedLocation: LondonRemote Working: 100% remote working possibleSalary: 55,000 to 75,000Sector: I.T. & CommunicationsJob Type: PermanentWork Hours: Full TimeContact: Jas GujralEmail: : Apply for this job nowJob DescriptionSenior Backend Developer with Umbraco C# .netWorking as part...

Job Reference: NJ0429Date Posted: 24 September 2026Recruiter: Nexus Jobs LimitedLocation: LondonRemote Working: 100% remote working possibleSalary: 50,000 to 80,000Sector: I.T. & CommunicationsJob Type: PermanentWork Hours: Full TimeContact: Jas GujralEmail: : Apply for this job nowJob DescriptionSenior Backend Developer with C# .net Framework Working as...