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

Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS. They've completed Series A funding, raising $29 million across three funding rounds, and are now seeking a Senior Backend Engineer. You will be in charge of building scalable backend services and awesome messaging que

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 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

Lead Java Backend EngineerHybrid - 2 days per week in Newcastle/LondonThis is an opportunity for a Lead Java Backend Engineer to shape the backend technical direction, bring teams together, and introduce modern engineering practices that support scalable, secure, and high-performing systems.

Software Architect Java - BackEnd, Back End Google Cloud (GCP)Contract: Until December 2026 - RenewableLocation: Essex Offices (located between Brentwood and Basildon) 4 days a weekRate: £600 per Day Inside IR35The finance and banking division of this engineering company and household name is se

A leading AI-first patent research platform in the UK seeks a software engineer to develop core features and collaborate with senior engineers.Candidates should have over 2 years of engineering experience, strong Python skills, and familiarity with Django.This position requires working onsite three

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 leading technology firm is seeking a Database Manager & Replication Manager to ensure efficient management of databases for SaaS clients.Located in Greater London, this role demands expertise in Java and PostgreSQL while focusing on building automated systems for multi-tenant environments.The succ

You’ll be working in a team of backend engineers across MPG to spearhead the delivery and deployment of backend services for industry-leading game projects. Demonstrated mastery in at least one relevant area of backend technology, e. Understanding of how a backend service integrates with the game

A leading car finance company in the UK is seeking a Java Engineer to design and build backend services that drive its operations.

A cybersecurity company in Greater London is seeking a Senior Backend Engineer to tackle complex engineering challenges. You will design and evolve architectures for an integration platform connecting over 150 security tools and build backend services to support AI capabilities.

Develop a deep understanding of our core user journeys and backend systems. Work with a modern backend stack including. Continuously improve backend systems.

Solid understanding of computer science fundamentals (data structures, algorithms, networking) and a proven ability to apply them in creating high-quality, scalable backend systems. Experience with security best practices for backend development. We’re seeking a seasoned Backend Developer with a p

This role is ideal for an experienced backend-focused engineer with full-stack exposure, looking to work on business-critical systems that support operations at a national scale. Lead the development and continuous improvement of core backend systems.

We’re looking for a Backend Engineer to join our Product team and help build exceptional products for fans, venues and artists. As a Backend Engineer, you will have a direct impact on what we build and how we build it, working alongside a very senior team of experts to deliver high‑quality featu

A technology company in the engineering sector is seeking a Lead Engineer to guide backend and data engineering initiatives.

As a backend engineer, you will collaborate with cross-functional teams to build resilient solutions and support customer outcomes. Experience with strongly-typed languages and backend development is crucial.

We help companies stay secure while moving fast.Built by engineers for engineers, The Teleport Access Platform delivers on-demand, least privileged access to infrastructure based on cryptographic identity and zero trust, with built-in identity security and policy governance, making the happy path fo

A leading technology firm in Greater London is looking for a Senior Backend Engineer to take technical ownership of key product areas.

A leading Web3 infrastructure provider is seeking a Senior Backend Engineer to work on the WalletConnect Pay team. The role involves designing and maintaining backend services, owning the implementation and deployment of projects, and collaborating with various stakeholders.

The position involves optimizing backend applications to meet performance demands and requires experience with microservices architecture, containerization, and Kubernetes.

A leading blockchain payments company in the UK is looking for a Senior Backend Engineer to design and build backend systems for their financial infrastructure. The ideal candidate has over 5 years of backend engineering experience and a passion for scalable financial systems.

A leading global financial services firm in London seeks a Software Engineer III to join their Accelerator business.You will develop innovative products and tackle real-world problems in a collaborative environment.Strong skills in software development (Java/Kotlin) and a passion for fintech are ess

A dynamic tech company in Greater London is looking for a Backend Engineer to join the Promotions team. This role emphasizes backend expertise, particularly in Golang, and the ability to take ownership of complex initiatives in ambiguous settings.

A technology firm in Greater London seeks a Manager, Software Engineering, to architect high-performance backend systems on AWS.

Hybrid: City of London (3 days per week onsite).Did you know financial fraud costs the UK economy £200bn+ per year, accounting for over 40% of crime in England and Wales? This early-stage FinTech is on a mission to fight financial crime and reduce scams in online payments.High-ownership, mission-dr

Candidates should have over 5 years of experience in DevOps, with proficiency in backend languages like Golang or Rust, and significant knowledge of cloud security, containerization, and CI/CD tools.

You'll be working closely with a team of skilled engineers to design scalable backend systems and contribute to a brand-new product.

A BAFTA-winning games studio in Greater London is seeking a seasoned Backend Developer to design and develop scalable microservices. The role involves collaboration with technical teams to create robust backend services and optimizing performance on a high-traffic digital platform.

Backend Software Engineers at Palantir build software at scale to transform how organizations use data. Different backend languages, including Java, Rust, and Go.

A leading circular fashion marketplace in the UK is seeking a Staff Backend Engineer to drive the technical vision of their data platform.

As a key member of the team, you will focus on backend software engineering, developing high-quality code in C#, and participating in the full development life cycle. This role emphasizes user-centric design and continuous improvement, requiring close collaboration with product, design, and backend

Candidates should have extensive backend development experience in data-driven B2B settings, strong programming skills in Python or Go, and expertise in API design and cloud infrastructure.

The ideal candidate possesses strong Python and backend skills along with a commercial mindset.

A financial services firm in Greater London is seeking an exceptional Software Engineer to join their Backend Engineering squad.

FYLD is looking for a Principal Backend Engineer. This is a critical role for the business as we continue to enhance our backend systems to support our growing product offerings and long-term roadmap. Design and develop containerised backend services and scalable APIs using Django, AWS, and Terrafor

A leading technology company in Greater London is seeking a passionate Staff Fullstack Engineer with a backend focus to lead AI-driven software projects.

Design and develop backend systems powering Vega’s AI-enabled platform, including LLM-driven workflows, intelligent automation, and agentic systems. Develop scalable backend architecture:. Design and optimise APIs and backend services that power Vega’s frontend applications and enable complex da

The successful candidate will lead and grow the engineering team focused on backend services for payment, checkout, and transactional workflows. Ideal candidates should have a strong background in backend engineering and experience in managing delivery across multiple workstreams.

A reputable engineering firm in the UK is seeking a Backend Software Engineer focused on designing and building software systems within high-assurance environments. The role requires expertise in backend development using Python and Go, along with experience in container orchestration with Docker an

Candidates should have over 10 years of experience with backend systems and functional programming languages like Elixir and Scala.

A fast-growing technology company in the UK is seeking a Senior Backend Engineer to lead the development of backend features that support both customers and internal teams.

This role requires strong experience in mobile and backend technologies, including React Native and.

The role involves leading backend service design, making critical architectural decisions, and mentoring engineering teams. Ideal candidates have 8+ years of experience in backend engineering, deep AWS expertise, and strong DevOps skills.

A technology firm in the UK is seeking an experienced Software Engineer to lead the development of backend platforms for national security and defense clients.