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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 | 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.

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

You will work within a collaborative backend team, contributing to services processing operational and sensor data.

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

A leading FinTech company in the UK is seeking a Software Engineer (Go) to develop high-performance back-end services for financial applications.The ideal candidate will have a Bachelor’s in Computer Science and experience with JavaScript, HTML, and CSS.Proficiency in integrating AI tools into dev

A healthcare technology company in the United Kingdom is seeking a Senior Backend Engineer to join their application modernization team.

Back-End developer (python and GCP) - £525 inside IR35.Experience with frontend technologies including React.Strong experience deploying and managing applications on Google Cloud Platform (GCP).Proficiency in designing and integrating RESTful APIs.Demonstrated ability to implement automated testing

Candidates should have a strong background in backend engineering, system design, and be proficient in Java or a similar language.

Backend Developer Web3 - London / Remote. An exciting and well-backed decentralised Crypto project is seeking to bring in an experienced and proven Backend Developer with skills in Solidity, and ideally Golang. The Senior Backend Developer will join a team of experienced and proven Blockchain expert

The role offers the opportunity to design scalable backend systems in a remote-first or hybrid environment.

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

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

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

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

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

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

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

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

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.

The ideal candidate will work on backend services, mentor teams, and shape the technical architecture.

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

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

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

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 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

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

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

A leading consultancy in Quality Engineering is seeking a Senior Systems Integration Test Analyst for a contract role in the United Kingdom.This position focuses on end-to-end technical validation of back-end systems, using SQL for database testing, and utilizing Azure DevOps for test management.The

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.

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.

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

A well-established global software provider in the UK is looking for a Software Development Team Lead to oversee a small team of engineers in developing a cloud-based data integration platform.The role combines team leadership with technical ownership, focusing on building scalable Node.TypeScript s

NET (C#) in backend environments. 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

They require a backend engineer to own, build the backend architecture, set up API calls and ensure it is scalable due to forecasted growth. Own and build backend architecture.

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 tech recruiting firm is seeking a Senior Backend Engineer to lead backend services from design to production. The ideal candidate will have over 7 years of strong backend experience in Golang, solid skills in system design, API and data modeling, and familiarity with modern cloud architectures.

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

NLPatent is an industry leading AI-first patent research platform that was an early mover in the application of Large Language Models.We use a combination of proprietary and off-the-shelf machine learning models and NLP techniques to help our users answer patent related research questions such as "I

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

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