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    Back End Developer

    Senior Backend Engineer Fully Remote 6 months initially We’re seeking a Senior Backend Engineer to lead the design and implementation of core backend services for an Azure-based SaaS platform. Apply here and help define the future of intelligent document au ...

    Senior .NET Backend Engineer – AI First SaaS

    Keepnet is seeking a Senior Backend Developer to join their AI-driven SaaS platform in the UK. In this role, you will design and build scalable backend services, maintain API integrations, and ensure high code quality practices like Clean Architecture and TDD are followed. With a strong focus on ownership and se ...

    Senior Backend Engineer Remote, End to End Node.js/TS

    iO Associates is searching for a Senior Backend Developer to join a rapidly growing tech company, fully remote. In this hands-on role, you'll design and develop high-quality backend features, taking ownership from concept through to production. Ideal candidates will be experts in Node.js and TypeScript, and skil ...

    Senior Web Services Engineer

    Contract Senior Web Services Engineer📅 3-6 Month Contract💵 Hourly Rate in USD – Negotiable🌍 Fully Remote – Open to candidates worldwideWe are seeking a Senior Web Services Engineer to join on a contract basis, working remotely with a globally distributed t ...

    Senior Web Services Engineer

    Contract Senior Web Services Engineer📅 3-6 Month Contract💵 Hourly Rate in USD – Negotiable🌍 Fully Remote – Open to candidates worldwideWe are seeking a Senior Web Services Engineer to join on a contract basis, working remotely with a globally distributed t ...

    Staff Platform Engineer – Platform Engineering (UK & Ireland)

    Overview Fanatics Betting & Gaming (FBG) is seeking a Staff Platform Engineer to join our Platform Engineering team based in the UK or Ireland. This position plays a critical role within the EMEA Platform Engineering organization, partnering closely with teams across the UK, Ireland, and U ...

    Senior Software Engineer

    Python Engineer (Core Trading Platform | Front Office) £80,000-£120,000 base salary plus strong package London - Hybrid We’re hiring Python Engineers to join a front office-facing platform build within a tier-one financial services organisation - this is a green ...

    Senior Java Backend Lead Remote/Hybrid + Growth

    A leading company in the IT industry is seeking a Senior Java Developer to join their team. This role involves developing a cutting-edge CRM SAAS solution, working closely with project teams throughout the software lifecycle. The Senior Java Developer will be responsible for both backend and the introduction of ...

    Distributed Scheduling & Workload Orchestration Engineer

    A technology and data company in Crawley seeks a Software Developer focusing on distributed scheduling and workload orchestration. This position requires strong software development skills and experience with backend services and job scheduling systems. The developer will design systems for workload orchestratio ...

    Senior Customer Support Engineer (EMEA) Remote

    Job Openings Senior Customer Support Engineer (EMEA) - Remote About the job Senior Customer Support Engineer (EMEA) - Remote Our client is a fast‑growing international software company building high‑performance developer infrastructure used by teams around the world. To support their expa ...

    Backend Engineer (Kotlin/Java) Remote Healthcare SaaS

    A leading healthcare technology provider is seeking a remote Backend Developer proficient in Kotlin and Java. The ideal candidate will collaborate with cross-functional teams to design backend services and APIs, ensuring quality and reliability. Candidates should have at least 5 years of relevant experience, a b ...

    Platform Backend Java Engineer (Hybrid, Fixed Term)

    A leading consultancy firm seeks a Backend Java Developer in Birmingham to build core backend services for data access governance. The role involves heavy lifting with Java (17/21), Spring, and SQL planning. As part of a hybrid team, you will implement policies and work on high-throughput services. Strong hands- ...

    Hybrid Senior Backend Engineer C#/.NET & Azure

    A vibrant technology company in Liverpool is seeking a Senior Backend Developer who enjoys solving complex problems and building scalable systems. You’ll work on backend services with .NET 8.0 and Azure, and you'll mentor other developers. They're looking for someone with solid experience in C#, .NET, and Docker ...

    Senior Backend Engineer, Subscriptions — Remote & Hybrid

    Spotify is seeking an experienced backend developer to design and build scalable Java services that power its merchandising platform. The role requires at least 5 years of experience in backend systems and expertise in cloud services like GCP or AWS. The position offers flexibility in work location, whether base ...

    Hybrid Backend Engineer: B2B APIs & Cloud (C#, AWS)

    Join tombola in Sunderland as a Software Developer! You will contribute to backend development for our B2B platform, building reliable systems for external integrations. This role involves working with technologies like C#, .NET, AWS, and more. You will design APIs and maintain backend services, ensuri ...

    Senior .NET Backend Engineer — Hybrid, Scale & Impact

    TyneStack Ltd in Newcastle upon Tyne is looking for a Senior Software Developer (.NET / Backend / Azure). This full-time, hybrid role focuses on developing and maintaining backend systems utilizing C# and modern .NET, contributing to high-impact projects. Candidates should have strong experience in live environm ...

    Founding Backend Engineer — Go & Scalable Infra

    Requesty is looking for an experienced backend developer to join its team in Greater London. You will play a critical role in building a robust infrastructure that powers AI-first companies. The ideal candidate has over 5 years of experience with Golang and backend service architectures, along with a proven abil ...

    Senior Java Backend Engineer – Data Platform

    A leading technology firm in the United Kingdom is seeking a Senior Backend Developer to support a data platform programme for a global financial services organisation. The successful candidate will design and implement backend services, ensure high levels of automated testing, and integrate with various systems ...

    Platform Backend Engineer: TS/Node, Cloud & APIs

    Speechify is looking for a backend developer to design and maintain APIs for its innovative text-to-speech products. The ideal candidate will have proven experience in backend development with TS/Node and familiarity with cloud services like GCP or AWS. This role offers competitive compensation, a dynamic work e ...

    Senior Backend Engineer | Node.js, TypeScript | Hybrid

    A dynamic software company based in London is seeking a highly experienced Lead Backend Developer. This role involves designing and building robust backend systems using Node.js and TypeScript. You will work closely with cross-functional teams to develop high-performance APIs and manage databases. Ideal candidat ...

    Lead Node Backend Engineer Scale up, Hybrid London/WFH

    Client Server is seeking a Lead Node Developer / Backend Engineer in London. You will play a crucial role in designing and developing backend services for a financial operating system, enhancing customer experiences and vendor revenues. The successful candidate will have a strong background in Node.js and Postgr ...

    Java Backend Engineer – Spring Boot, REST & Kafka

    Rockstar in Dundee, Scotland is seeking a Java Backend Developer to design and implement solutions for game development challenges. The ideal candidate has over 3 years of experience in Java backend development, strong command of the Spring Boot ecosystem, and a solid understanding of MySQL. You will contribute ...

    Senior Go Backend Engineer Energy Tech, Cloud & Scale

    Arenko, based in Greater London, is looking for a skilled backend developer to join their agile team. You will be responsible for developing backend services using Go and AWS, playing a crucial role in automating energy trading and managing data for a sustainable energy future. Ideal candidates will possess expe ...

    Senior Java Engineer for Global KYC & Onboarding

    hackajob is looking for a backend developer with over 4 years of experience in Java and Spring framework to join their KYC and Onboarding squad. You will own the technical roadmap, design robust backend systems, and integrate compliance systems while ensuring customer experience. Success in this role involves so ...

    Platform Backend Engineer: TS/Node, Cloud & APIs

    Clutch Canada is looking for a skilled backend developer to join its Platform team in Cambridge, England. In this role, you'll design and maintain key APIs for products, focusing on performance and integration for enterprise clients. Ideal candidates have proven experience in backend development using TypeScript ...

    Backend Engineer, TTS Platform & APIs

    Clutch Canada is seeking a skilled backend developer with expertise in TypeScript and Node.js to join the Speechify team in Manchester, England. In this role, you will design and develop APIs, oversee backend performance, and collaborate on B2B solutions. The ideal candidate should have experience with Google Cl ...

    Senior Backend Engineer — Casino UX (Flexible, Impactful)

    A next-gen sports betting platform is seeking a Senior Backend Engineer to join their Casino UX team. The role involves owning the backend lifecycle, building APIs, and writing maintainable code. Candidates should have over 5 years of backend experience, strong Python skills, and a solid understanding of databas ...

    Lead Backend Engineering Team — Remote & Growth

    A technology partnership firm is seeking a Backend Engineering Team Manager to lead and inspire a remote team of backend engineers. The role involves project execution, mentoring engineers, and collaborating with product and design teams. Ideal candidates should have over 7 years of software development experien ...

    Senior Software Engineer Python/Data Platform

    Description Do you want to work to make Power for Good?We're the world's largest independent renewable energy company. We're guided by a simple yet powerful vision: to create a future where everyone has access to affordable, zero carbon energy.We know that achieving our ambitions woul ...

    Senior Software Engineer Python/Data Platform

    Description Do you want to work to make Power for Good?We're the world's largest independent renewable energy company. We're guided by a simple yet powerful vision: to create a future where everyone has access to affordable, zero carbon energy.We know that achieving our ambitions woul ...

    Java/Spring Boot/SQL/Backend dev/developer for The Climate App!

    We're on a mission to create a global movement of climate action. We make climate action easy, fun & social. We are a global network of highly skilled developers, activists and professionals all on a mission to help solve the greatest threat of humankind. We’re looking for someone who cares about p ...

    Backend Developer (Node.js) | High Impact Greenfield Trading | £130k + Bonus + Benefits | Londo[...]

    Backend Developer (Node.js) High Impact Greenfield Trading, £130,000 + Bonus + Benefits, London Hybrid. Job Summary We are partnered with an energy trading client and are looking for a Backend Developer with strong Node.js experience to help build an event‑driven, AI‑enabled pla ...

    Senior Backend Engineer in London EDITED

    Senior Backend Engineer London, United Kingdom Posted over 1 year ago Tech stack APIs Python mentor Backend Nix Qualifications Proven ability to take ownership of projects, drive results, and mentor team me ...

    Developer Support Engineer

    About the company Braintrust is the AI observability platform. By connecting evals and observability in one workflow, Braintrust gives builders the visibility to understand how AI behaves in production and the tools to improve it. Teams at Notion, Stripe, Zapier, Vercel, and Ramp use Brai ...

    Backend Software Engineer C# .Net Core

    Get AI-powered advice on this job and more exclusive features. This range is provided by Client Server. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Client Server Senior ...

    Senior Backend Engineer, Trust Detection — Remote & Growth

    Depop in Greater London is seeking a Senior Backend Engineer for its Trust Detection team. In this role, you will design and deliver backend solutions, evolve core detection services, and collaborate with ML Engineers on innovative detection systems. Ideal candidates will have strong backend fundamentals and pro ...

    Senior Backend Architect: Build Scalable Data & API Platforms

    A leading technology company in Greater London seeks a Backend Software Engineer to lead the architecture and development of high-performance backend services. The role involves designing efficient data structures, building robust APIs, and collaborating with cross-functional teams. Ideal candidates will have 6+ ...

    Software Engineer Python | Django

    A software engineer with at least 2 years of backend Python/Django skills is required to join the R&D, product-focused engineering team at a world-leading European software company with circa 350 people who specialise in secure video collaboration technology. The role is hybrid-based in Reading, Be ...

    Senior Developer Risk Technology C# .NET, Python, Snowflake SQL (Vice President)

    Job Description We are seeking a hands‑on Senior Developer to build and operate a highly‑scalable, AWS cloud‑based risk platform leveraging a Snowflake database containing trade data, reference data and market data needed to produce the firm's risk. The majority of development is ...

    Python Developer London Up to £160,000 Starting Base + Exceptional Bonuses/Benefits

    Overview We're looking to add a high‑impact engineer to a small, specialised team responsible for the real‑time risk and trading data platform that powers systematic strategies across the firm. You’ll operate at the intersection of distributed systems, market data, and quantitative tra ...

    Senior Developer Risk Technology C#.NET, Python, Snowflake SQL (Vice President)

    DescriptionJefferies Financial Group Inc. (‘‘Jefferies,’’ ‘‘we,’’ ‘‘us’’ or ‘‘our’’) is a global full service, integrated investment banking and securities firm. Our largest subsidiary, Jefferies LLC, a broker-dealer, was founded in the in and our first international operating subsidiary, Je ...

    Senior Developer Risk Technology C#.NET, Python, Snowflake SQL (Vice President)

    DescriptionJefferies Financial Group Inc. (‘‘Jefferies,’’ ‘‘we,’’ ‘‘us’’ or ‘‘our’’) is a global full service, integrated investment banking and securities firm. Our largest subsidiary, Jefferies LLC, a broker-dealer, was founded in the in and our first international operating subsidiary, Je ...

    Senior Mobile Engineer Architect Global, Scalable Apps

    A leading fintech company in Greater London seeks a Senior Mobile Developer to architect and build user-friendly mobile experiences. You will own feature development from start to finish, working with backend teams to ensure scalable solutions. Ideal candidates have a strong React Native background, experience w ...

    Lead Software Engineer Developer Experience Platform

    On-Ag-5 is seeking a Senior or Lead Software Engineer to join its Developer Experience team in Greater London. The role involves designing automated CI/CD pipelines, contributing to backend GraphQL infrastructure, and building internal developer tooling to improve efficiency. Candidates should have strong experi ...

    Senior Mobile Engineer Architect Global, Scalable Apps

    A leading fintech company in Greater London seeks a Senior Mobile Developer to architect and build user-friendly mobile experiences. You will own feature development from start to finish, working with backend teams to ensure scalable solutions. Ideal candidates have a strong React Native background, experience w ...

    Senior Backend Engineer .NET/Azure, Remote

    A leading technology firm is seeking a Senior Software Developer specializing in backend solutions. This role will involve designing and developing robust backend services and REST APIs using C# and .NET while also engaging with SQL Server and cloud-based solutions in Azure. A strong focus on coding best practic ...

    Senior Backend Lead Telematics (TypeScript/NodeJS)

    Radius in Crewe is looking for a Senior Backend Developer with extensive experience in Typescript and NodeJS to enhance their vehicle telematics team. This role demands a balance of technical excellence, leadership, and collaboration within a cross-functional team. The successful candidate will design, ...

    Lead Backend Engineer (TypeScript) – Hybrid, London

    Java Script Works is looking for a Lead Backend Software Developer (Typescript) to join our software team in London. You'll lead projects focused on building and scaling a robust event-driven backend, directly reporting to the CTO. This full-time role requires a hybrid work presence of 2 days a week in ...

    Backend Engineer, B2B APIs & Cloud

    tombola is seeking a Software Developer for their backend team in Sunderland, focusing on building scalable backend services and APIs for external partners. The ideal candidate will have strong C# knowledge, experience with .NET, and familiarity with cloud platforms like AWS. This hybrid role involves 3 days in ...

    Senior .NET Backend Lead High Performance SaaS (Hybrid)

    Venn is looking for a Senior .NET Web Developer (Lead) to design high-performance backend systems and ensure optimal code quality. Based in Alderley Park with a hybrid work model, the role involves leading backend development using C# and .NET. The ideal candidate will have expertise in SQL and REST API architec ...

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