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We’re hiring a senior backend engineer to join a disciplined, senior team responsible for the platform behind Eequ, where engineers have real ownership and operate with high autonomy. Build and operate the backend platform that powers a real marketplace handling bookings, payments, and reporting f

The role involves the design and development of backend services and infrastructure for Machine Learning workloads.

Senior Backend Engineer | Python, FastAPI & Scaling | Security SaaS. Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS. Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS.

Our backend tech stack is Spring Boot with Java/Kotlin/Groovy, MySQL and Opensearch, hosted on AWS. Our frontend is React with Typescript, and you will be expected to contribute small features to the frontend (though the role is at least 95% backend). You're an experienced engineer with multiple ye

Backend Developer Romsey, Hampshire (Hybrid - 3 days office / 2 remote, flexible)£45,000 - £50,000 + BenefitsOOP, PHP, LaravelMy client build innovative SaaS solutions that help organisations monitor, manage, and optimise critical infrastructure.

Software Architect Java - BackEnd, Back End Google Cloud (GCP).

In this role, you will lead the development of core backend systems and build web applications and APIs while also supporting frontend tasks using frameworks like Vue.

A leading aviation company in Greater London seeks a Software Engineer to design, develop, and optimize backend and frontend systems.

This job is brought to you by Jobs/Redefined, the UK's leading over-50s age inclusive jobs board.Our product suite can adapt to the needs of diverse industries and use cases within one powerful platform, empowering ~245,000 customers worldwide to reimagine how work gets done, drive greater efficienc

As a Senior Backend Software Engineer in the Core Team, you’ll play a critical role in engineering the backbone of our payment platform.

A leading financial technology company based in the UK is seeking a backend engineer to join its newly-formed Acquiring Platform team. Ideal candidates will have strong backend programming skills, a knack for designing APIs, and the ability to work collaboratively in a dynamic environment.

A financial technology company in Greater London seeks a generalist developer to contribute to various projects.The role involves building and maintaining client libraries for APIs across multiple languages like PHP and Ruby, working on identity-checking systems, and developing internal services for

A tech consultancy is seeking a hands-on Python Developer for a contract role in Dacorum.You will be involved in building and maintaining Python-based back-end services, developing web applications with frameworks like Flask or Django, and supporting legacy system modernization.A proactive problem s

We’re on a mission to make money work for everyone.We’re waving goodbye to the complicated and confusing ways of traditional banking.With our hot coral cards and get-paid-early feature, combined with financial education on social media and our award winning customer service, we have a long histo

A fintech startup in London seeks a Backend Developer to create AI-powered product capabilities and scalable backend architecture. Ideal candidates will have 3–4 years of experience in backend development, particularly with Java and Spring Boot.

They are looking for a Senior Backend Developer who will own the infrastructure powering data pipelines, APIs, real-time delivery, and the databases underneath. Own architecture decisions for the company's backend systems. Backend : Typescript,EVM and integration patterns.

Has 5+ years of professional backend experience with strong computer science fundamentals in data structures, algorithms, and software design patterns.

We are looking for a generalist developer to join our team to help build out systems & handle user growth.You’ll have the opportunity to contribute to different areas of the code-base and choose which projects interest you.Our service is built on Ruby on Rails, but particular experience is not a p

A cutting-edge technology firm is seeking a hands-on leader for backend and data engineering in London.

The successful candidate will own backend system architecture and ensure scalable and secure design.

Build AI‑powered product capabilities: Design and develop backend systems powering Vega’s AI‑enabled platform, including LLM‑driven workflows, intelligent automation, and agentic systems. Develop scalable backend architecture: Build and evolve microservices using Java and Spring Boot to supp

A high-growth B2B SaaS company in the United Kingdom seeks a Software Development Manager to lead a team of about 8 engineers.In this non-coding but highly technical position, you will drive engineering best practices, improve team performance, and support critical technical decisions.The ideal cand

In this role, you will design and build high-performance backend services, leveraging your skills in Rust and PostgreSQL to contribute to critical financial infrastructure.

You will act as a trusted backend partner for Product and Platform teams, stabilising third‑party integrations, improving background job efficiency, and utilising architectural documentation like C4 models to ensure long‑term scalability. You will have the autonomy to own multiple backend system

The ideal candidate will have experience in backend service development, familiarity with machine learning frameworks like PyTorch, and containerization skills using Docker and Kubernetes.

A leading tech company in Greater London seeks a Lead Software Development Engineer in Test (SDET) to oversee a small team, drive automation strategies, and enhance testing processes.Candidates must have a minimum of 8 years of experience in test development, strong Java proficiency, and a backgroun

A dynamic technology company in London is seeking a Senior Software Engineer to build and maintain backend services for their football fan platform.

A leading AI solutions provider in Greater London is seeking a Lead Software Engineer to spearhead backend and edge/IoT engineering for high-stakes defence projects.

As a Senior Backend Engineer at Monzo, you'll take technical ownership of key product areas in one of Europe's leading challenger banks.

The ideal candidate will have 6-11 years of experience, strong skills in backend systems and APIs, and a passion for continuous improvement.

As a Backend Engineer at Monzo, you'll help build one of the UK's fastest-growing digital banks, serving 9M+ customers.

The successful candidate will bridge the gap between backend engineering and infrastructure security, implementing robust controls across a complex cloud and blockchain ecosystem. Candidates must be prepared for a live coding exercise focused on backend and systems logic. Engineering Proficiency: Mu

A blockchain technology company is looking for a Blockchain Backend Expert to design and develop efficient blockchain technologies for their distributed ledger system.

At Elliptic, we're not just connecting systems — we're building the backend services, integrations, and internal applications that enable our revenue teams to operate at scale. You'll be the engineer behind our commercial technology stack, building the backend systems that pull together product us

A fast-growing HealthTech company in London is seeking a Backend Software Engineer to join its Agile engineering team. Ideal candidates will have a solid understanding of backend system design, strong communication skills, and experience with technologies like Spring and JPA.

A mission-driven tech scale-up is seeking a Senior Backend Engineer to design, build, and scale their core software platform. This hands-on role involves creating backend services in Python and improving system performance while collaborating with a high-performing team.

A leading gaming company in Greater London is seeking a Lead Engineer for Mobile Games.This role requires over 10 years of experience with commercial game engines, a strong proficiency in both Unity and C#, and a proven record in delivering game-as-a-service architectures.The successful candidate wi

A scaling Fintech is seeking a TypeScript Developer / Backend Software Engineer to enhance their energy trading platform. You'll engage in backend development using TypeScript, Node, and AWS while contributing to technical discussions.

Senior Software Engineer, Backend Services & APIs. Familiarity with computer science fundamentals and backend development concepts. Senior Software Engineer, Backend Services & APIs.

You’ll be UK or EU based and you’ll be working in a team of backend engineers across MPG. We deliver, deploy and help integrate backend services alongside external co-dev clients as part of industry leading game projects, and collaborate to define solutions and implement features on time and to

As a Senior Software Engineer, Backend at Fanalysis, you'll be responsible for building and maintaining the robust backend services that power our football fan platform. Designing, building, and maintaining high-performance backend services and APIs that support our mobile and web applications. Ensu

A specialist consultancy in the education sector is seeking a Senior Back End/Data Engineer.The role involves building ETL pipelines, designing SQL schemas, and ensuring secure data handling in a modern Azure environment.Ideal candidates will have excellent SQL skills and experience in creating data

Collaborate with engineers, product managers, and other stakeholders.Communicate technical decisions clearly and maintain high engineering standards.ECS, Lambda, Step Functions, API Gateway).Experience managing infrastructure with.

A leading blockchain infrastructure company is seeking a Senior Backend Engineer to join their WalletConnect Pay team. In this fully remote position, you will be responsible for designing and maintaining backend services across the payment platform, including payment orchestration and APIs. Ideal ca

You will guide backend architecture, ensuring high standards in performance, security, and reliability.

A tech-focused proptech platform in London is seeking a Senior Backend Engineer to design and maintain high-performance APIs and microservices. The ideal candidate has over 5 years of backend experience and a passion for scalable architectures and clean code.

We need senior backend engineers who can take ownership of complex problem spaces, ship production‑grade services, and help us build the engineering foundation for the next generation of onchain payments. This is a Senior Backend Engineer position on the WalletConnect Pay team. The common thread i

Senior or Staff Backend Product Engineer. Scale and evolve backend systems as the product grows.