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Java Backend Engineer (DV Cleared) – Secure Microservices

Addition Solutions LTD is looking for a Java Developer to build secure, high-performance backend systems supporting national security and intelligence programs. You'll design and develop robust Java-based backend services, work with microservices and RESTful APIs, and tackle complex data challenges. This role re ...

Backend Engineer (TS/Node) for Scalable APIs & AI Audio

Speechify is looking for a backend developer to join their Platform team in Birmingham, United Kingdom. This role involves designing and maintaining APIs, enhancing backend services, and collaborating across teams. Ideal candidates should have experience with Typescript/Node and cloud providers like GCP and AWS. ...

Full Stack Engineer for AI Powered Finance (London)

A leading investment management firm in London is seeking a Full Stack Software Developer to build and maintain web applications using Angular and C#. The ideal candidate will have a strong background in full-time software development, proficient in backend technologies like C#. Responsibilities include collabor ...

Backend Kotlin Engineer Remote, Flexible Hours, Growth

A leading cashless payment solutions firm in the UK is seeking a backend developer proficient in Kotlin. You will build a secure and performant backend while collaborating with teams to enhance user experience. The role offers significant growth opportunities in a supportive startup environment, along with compe ...

Backend Engineer (Kotlin/Spring Boot) Remote & Flexible

A financial technology startup in the United Kingdom is seeking a Backend Developer to build secure and performant solutions using Kotlin or Java. You will collaborate with teams to enhance user experience and integrate third-party APIs. Ideal candidates should have significant backend development experience, pr ...

Backend Java Engineer – Data Fabric Platform

A leading consulting firm is looking for a Backend Java Developer specializing in Data Fabric and Platform Engineering. The role involves building core backend services in Java and implementing deterministic policy engines for data governance. Ideal candidates will have strong Java and SQL expertise along with e ...

Senior Web3 Backend Engineer – Remote (Solidity & Golang)

A leading recruitment agency in the UK is looking for an experienced Backend Developer specializing in Solidity and Golang. Join an early-stage decentralized Crypto project that offers the opportunity to work on groundbreaking blockchain technology. The ideal candidate has over 5 years of backend experience and ...

Go Backend Engineer Sportsbook Platform (Hybrid London)

A leading online gaming company is seeking a Backend Developer in London. This hybrid role involves enhancing the performance and scalability of our Sportsbook platform using programming skills in Go and collaborating with cross-functional teams to deliver high-quality applications. The ideal candidate possesses ...

Backend Engineer (TS/Node) – Cloud & High Impact APIs

Clutch Canada is seeking a talented backend developer to join its team in a fully remote capacity. The role involves designing, developing, and maintaining APIs, focusing on performance, scalability, and alignment with overall product strategy. Ideal candidates will have proven experience in backend development, ...

Backend Software Engineer C# .Net FinTech

Backend Software Engineer / Developer (C# .Net Core) *Newcastle onsite* to £130k+ Are you a backend focussed Software Engineer with a first class education looking for an opportunity to progress your career, working on complex and interesting systems in an impactful role? You c ...

Backend Software Engineer Java Kotlin AWS

Backend Software Engineer / Developer (Java Kotlin AWS API) Hybrid WFH to £120k Would you like to progress your career in an impactful hands-on Backend Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded by two highly successful, ...

Senior Software Engineer I (Growth & Marketing Technology)

We’re putting together a talented team to build the #1 training platform for Runners. We help everyday runners become outstanding by building an incredible app providing world‑class training, coaching and community for everyone, whether you’re improving your 5k time or training for your first marat ...

Python developer | Front Office Trading | £800 Inside | Hybrid, LDN | 6 Months Rolling

Python developer | Front Office Trading | £800 Inside | Hybrid, LDN | 6 Months Rolling A Global Energy Trading Firm is scaling aggressively into new‑energy markets . They’re looking for a Python engineer who has experience sitting directly within th ...

Lead Node Developer Tech Scale up

Lead Node Developer / Backend Engineer (Node.js Postgres AWS) London / WFH to £100kWould you like to join a scale-up technology company in an influential role where you can take ownership and see the business impact of what you do?You could be progressing your career as a Lead Node Develo ...

C# Developer

C# .NET Developer | Azure | Contract | London Hybrid | up to £530/day Inside IR35Enterprise Digital Transformation Programme£530 per day | Inside IR35Hybrid – 3 days onsite in LondonI’m currently working with a global technology consultancy supporting a major UK enterprise organisation on a signi ...

C# Developer

C# .NET Developer | Azure | Contract | London Hybrid | up to £530/day Inside IR35Enterprise Digital Transformation Programme£530 per day | Inside IR35Hybrid – 3 days onsite in LondonI’m currently working with a global technology consultancy supporting a major UK enterprise organisation on a signi ...

C# Developer

C# .NET Developer | Azure | Contract | London Hybrid | up to £530/day Inside IR35Enterprise Digital Transformation Programme£530 per day | Inside IR35Hybrid – 3 days onsite in LondonI’m currently working with a global technology consultancy supporting a major UK enterprise organisation on a signi ...

C# Developer

C# .NET Developer | Azure | Contract | London Hybrid | up to £530/day Inside IR35Enterprise Digital Transformation Programme£530 per day | Inside IR35Hybrid – 3 days onsite in LondonI’m currently working with a global technology consultancy supporting a major UK enterprise organisation on a signi ...

C# Developer

C# .NET Developer | Azure | Contract | London Hybrid | up to £530/day Inside IR35Enterprise Digital Transformation Programme£530 per day | Inside IR35Hybrid – 3 days onsite in LondonI’m currently working with a global technology consultancy supporting a major UK enterprise organisation on a signi ...

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 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 ...

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 .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 ...

Java Engineer

Java Engineer Location: Belfast (Hybrid) About the Company You'll join a collaborative engineering team focused on building and improving modern, scalable applications that support global platforms and services.Please double check you have the right level of experience and qualifications by reading the full ...

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 Backend Software Engineer (9 Month Contract)

InfoSum is the world’s leading data collaboration platform. The world’s largest enterprise businesses use InfoSum to collaborate across data sources and deliver richer customer experiences that prioritise consumer privacy. Our vision is to unlock data’s limitless potential, by enabling the world’s data to be ...

Senior Backend Software Engineer (9 Month Contract)

InfoSum is the world’s leading data collaboration platform. The world’s largest enterprise businesses use InfoSum to collaborate across data sources and deliver richer customer experiences that prioritise consumer privacy. Our vision is to unlock data’s limitless potential, by enabling the world’s data to be ...

Senior Backend Software Engineer (9 Month Contract)

InfoSum is the world’s leading data collaboration platform. The world’s largest enterprise businesses use InfoSum to collaborate across data sources and deliver richer customer experiences that prioritise consumer privacy. Our vision is to unlock data’s limitless potential, by enabling the world’s data to be ...

Senior Software Engineer

Role: Lead Python Engineer (Hands-on Team Lead) Location: London – Hybrid (3 days office / 2 days WFH) Salary: Up to 130k base Industry: Fintech Platform We’re working with a profitable, <str ...

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 ...

Software Applications Engineer

Software Applications Engineer page is loaded## Software Applications Engineerlocations: Fareham Hampshire - Saab Seaeye, Trilogy 1, Concorde Way, Segensworthtime type: Full timeposted on: Posted Todaytime left to apply: End Date: April 30, 2026 (28 days left to apply)job requisition id: REQ_41329**In ...

Software Engineer – AI Research Platform

Software Engineer – AI Research Platform Python | FastAPI | React | Azure We’re partnering with a leading AI research team building platforms that allow people to directly shape how AI models are trained and evaluated. This is a hands-on ro ...

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 ...

Full Stack PHP/Laravel Dev — Next.js & React Expert (6mo)

AND Digital Limited is seeking a PHP Developer to join the team in Manchester for an initial six-month contract. The role involves working 2-3 days per week on-site in Crewe. The ideal candidate will have strong experience with Next.js and Laravel, building scalable web applications across both frontend and back ...

Remote Backend Engineer (TS/Node) for AI Audio Platform

Speechify in Greater London is seeking a backend developer to design, develop, and maintain robust APIs that support its innovative text-to-speech products. The ideal candidate will have proven experience in backend development using TS/Node and be knowledgeable about cloud platforms like GCP. This position offe ...

Remote Backend Engineer (TS/Node) Cloud APIs

Speechify is looking for a backend developer to join their Platform team in Reading, UK. The role involves designing and maintaining robust APIs and collaborating with cross-functional teams to enhance user experience. Ideal candidates have proven experience with backend development in TS/Node, knowledge of GCP ...

Backend Engineer — Platform & APIs (TS/Node)

Speechify in Belfast is looking for a talented backend developer to join their Platform team. In this role, you will design, develop, and maintain APIs essential for payments, subscriptions, and other services. Applicants should have proven expertise in backend development with TypeScript/Node, and experience wi ...

Backend Engineer: B2B Integrations & APIs

tombola, based in Sunderland, is seeking a Software Developer for their backend development team. You will actively contribute to building robust backend services essential for external integrations in their B2B platform. The ideal candidate will have strong knowledge of C# and .Net, experience in building APIs, ...

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 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 ...

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 ...

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- ...

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 ...

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 ...

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 Microservices Developer

India - Remote Posted: 16/03/2026 Salary: $0.00 to $100.00 per Day ID: 37189_BH Apply OR Senior Java Microservices DeveloperLocation: India | RemoteContract: Initial 6-month contract with strong likelihood of extensi ...

Senior Java Microservices Developer

India - Remote Posted: 16/03/2026 Salary: $0.00 to $100.00 per Day ID: 37189_BH Apply OR Senior Java Microservices DeveloperLocation: India | RemoteContract: Initial 6-month contract with strong likelihood of extensi ...

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