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Backend Product Engineer (London) -. We’re looking for a Backend Product Engineer to help scale high-growth systems and support the next phase of product expansion. This role focuses on building reliable, secure, and high-performing backend services that power new features and capabilities.

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

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

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

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

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-house pricing solution. This position will be able to come in and have a lot of ownersh

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

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).

Candidates should possess strong Java skills and be familiar with building complex backend systems.

Strong proficiency in backend programming languages like Java, Python or Go.

A leading software provider in the UK is seeking a Software Engineer (Golang) to design and develop scalable backend systems.

A leading financial services company in Greater London is seeking an experienced Engineering Lead to support its growth.The successful candidate will manage software delivery, build high-performing teams, and define technical solutions.With a hybrid working environment, the company offers a competit

A leading fintech company in Greater London is looking for experienced Kotlin engineers to enhance its product platform.As a key player, you will be responsible for developing high-quality services and collaborating on new features.The role emphasizes high-performance, scalable systems and a culture

The ideal candidate will have over 5 years of experience in building high-performance backend services, preferably using Kotlin.

With hundreds of clients and over $500M in revenue processed, you’ll build mission-critical financial tools, architect core backend systems, and help shape both product and engineering culture at a pivotal moment of growth. Design, build, and optimise scalable backend services using Kotlin for com

A fast-growing finance company in Greater London is looking for an Entry Level Back End Acquisition Tech Developer.The role focuses on driving customer growth through data engineering and tooling, requiring strong proficiency in Python and SQL.The ideal candidate should thrive in an unstructured and

This role combines hands-on backend development with end-to-end delivery leadership, requiring strong skills in JVM-based technologies and distributed systems. A leading software testing company in the United Kingdom is seeking a Lead Backend Software Engineer to own the technical delivery of produc

A leading recruitment firm is seeking a Senior Backend Engineer for an innovative AI infrastructure company based in London.

We are seeking an experienced Senior Software Engineer (Backend) to lead the development of our in‑house Charge Point Management System (CPMS) and customer‑facing app and web portal.

A tech company for urban mobility in London is seeking an experienced Engineering Manager to lead a Backend team responsible for core data infrastructure.

A dynamic tech company in the UK seeks a Mid-Senior Backend WordPress Developer for a fully remote role.

The team is a backend team building internal and external APIs, enterprise distributed systems, services.

A leading consultancy firm in Greater London is seeking an experienced Node Developer with Front End Development experience.You will join a collaborative team focusing on back-end development, API integration, and database management.The ideal candidate is expected to have a strong grasp of Node.Jav

A forward-thinking tech company in Greater London seeks a Senior Software Engineer to own backend solutions development, lead a team, and enhance products for impactful software.

A Silicon Valley HealthTech company based in the UK seeks a Senior Python Backend Developer to design scalable backend services that manage real-time healthcare data.

A leading global financial services firm in Greater London is seeking a Software Engineer III to join its International Consumer Bank team.This position requires expertise in Java and cloud-native microservices, with responsibilities including creating secure, high-quality software and collaborating

The role requires 3+ years of experience in backend or full-stack development with languages like Node.

A leading crypto company is seeking a seasoned software engineer proficient in Rust to design robust services and libraries, collaborating with cross-functional teams.This fully remote opportunity requires 7+ years of experience, a security-first mindset, and the ability to debug issues autonomously

We are looking for an awesome Senior Java Backend Developer to join our growing team.

We're looking for a Lead Backend Engineer to help shape the future of Zego's platforms and services. As a Lead Engineer at Zego, you'll bring deep backend expertise driving delivery, influencing architecture, and mentoring others. Driving architectural discussions and decisions across multiple teams

This is a generalist mid-level backend position within the Ads Organization.

An exciting opportunity at a technology-driven engagement platform for a Software Engineer III (Backend) in the UK. You will lead backend development efforts in a 0→1 environment, leveraging AI tools to enhance productivity and build scalable systems.

Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets.Our platform, Ubuntu, is widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT.Our customers include the

Professional backend development experience using Python. Understanding of backend security best practices.

As Engineering Manager, Backend Compiler, you will lead a high-impact team of 6 engineers responsible for building and optimizing the OTPU compiler backend. Own and deliver the roadmap for OLIX’s compiler backend to OLIX’s core business objectives and timeline to maximize customer and business o

Senior Backend Engineer Contractor (Java, Python, Rust + Ruby nice-to-have) | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length. This is a high-impact freelance role within a tech-driven established team - building scalable systems in a modern backend environment.

A health and fitness tech startup is looking for a backend engineer to own and build the backend architecture, set up scalable API calls, and leverage AI tools to enhance coach productivity.

NET Backend Developer to join a high-impact engineering team building one of the most demanding real-time sportsbook platforms on the market. If youe passionate about distributed systems, performance-driven backend engineering, and have experience working in sports betting or complex, event-based sy

The ideal candidate has strong backend development experience, preferably with Node.

We are looking for a Backend Infrastructure Engineer with strong experience in building and maintaining backend services that power developer infrastructure. Design, maintain, and evolve backend services supporting our CI infrastructure. Strong backend engineering experience with Java and Python.

A leading tech innovator in Greater London is seeking a Director of Engineering to lead its backend data teams. The role involves setting technical direction, driving key initiatives, and mentoring backend engineers. Candidates should have over 10 years of experience in backend leadership, a strong

A leading cryptocurrency platform in Greater London is seeking experienced backend engineers.

A leading technology firm in Greater London is seeking a Software Engineer to contribute to the development of AI-powered solutions.The role involves working with millions of documents daily, ensuring high standards for quality and performance while collaborating with cross-functional teams.The idea

We're looking for a strong Backend-focused Software Engineer who is excited to engineer highly performant, mission-critical systems that are designed for agile development and rapid scaling. You have experience with Python (preferred), or another modern backend technology, and are excited to work wi

Building Containerized Web Applications.Experience working with modern web frameworks (React.Background in designing and developing data-intensive web applications.Remote Work Opportunity in the UK.Uncovering problems, formulating hypotheses, and driving the entire process from concept to execution.

Staff Software Engineer to join our Customer Knowledge team in the UK or Ireland.This is a unique opportunity to architect and build large-scale, globally distributed applications that process hundreds of thousands of data points per second.In this role, you will be at the forefront of innovation, w

Out of the successful launch of Chase in 2021, we’re a new team, with a new mission.We’re creating products that solve real world problems and put customers at the center - all in an environment that nurtures skills and helps you realize your potential.Our team is key to our success.We value col