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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

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.

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

We are looking for a Senior Backend Engineer to join our new Quantitative Sports team. As a Senior Engineer you will play a critical role in the development and maintenance of the backend aspects of the pricing system for our sportsbook and work alongside our quantitative analysts to deliver our in-

Compensation: Competitive, based on location and experience .Location: UK or Turkey (Hybrid – Office & Remote).Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale.Keepnet runs

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 years of working in startups as a backend engineer;. Our backend tech stack is Spring Boot with Java/K

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).

What you will do**Depending on your skills and field of expertise, you will be involved in key components of our technology, including:Backend Development- Design, develop and maintain scalable, robust backend features and APIs using modern frameworks. AI/LLM integration, observability, or backe

You will design and develop high throughput backend services for microsecond real‑time risk, pricing, trading engines, and market‑making systems, working across the full software development lifecycle using Rust, with some legacy C++ support. Strong backend OOP, multithreaded engineering experie

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

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.

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

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

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

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

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.

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

Develop scalable backend architecture: Build and evolve microservices using Java and Spring Boot to support a highly scalable SaaS platform serving private market firms. Create robust APIs and data service: Design and optimise APIs and backend services that power Vega’s frontend applications and e

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

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.

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

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

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

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

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 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.

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

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

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

Ideal candidates will have strong backend engineering experience and expertise in cloud infrastructure, particularly AWS. 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

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.

This role involves building backend services in Python, working on data-intensive workflows, and improving system design.

A leading logistics SaaS company in London is seeking a Senior Software Engineer to own backend architecture and develop high-performance systems.

We are looking for an exceptional Software Engineer, to join our Backend Engineering squad.

We are looking for a deeply talented Senior Backend Engineer. 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 i

We are looking for an exceptional Software Engineer, to join our Backend Engineering squad.

We are looking for an exceptional Software Engineer, to join our Backend Engineering squad.

Able to work full-stack, with backend as the primary strength and frontend delivery as part of the role. You will design and implement backend services in Go, expose clean and secure APIs, and translate infrastructure primitives into product-grade platform capabilities. You understand that backend s