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Lead Backend Engineer – Trading Platforms & Systems

Marks and Spencer is seeking a Software Engineer to join their team in London. You will lead software development, provide technical leadership, and mentor fellow engineers. The position demands a strong engineering background with proven experience in back-end systems, cloud technologies, and agile practices. A ...

Remote Senior Backend Engineer, Data Pipelines

A leading tech firm is seeking a Backend Engineer to enhance their data infrastructure. The role involves managing data pipelines and collaborating with clients to gather requirements. Candidates should have over 6 years of software engineering experience, proficiency in TypeScript, and a strong background in da ...

Software Engineer II – Creatives (Global Backend)

The Trade Desk, Inc. is looking for a Software Engineer to design and build data-focused products. This role involves the full software development lifecycle, collaboration with a diverse team, and addressing unique technical challenges in a global environment. Candidates should have a Bachelor's/Master's degree ...

Backend Engineer Data (London, Toronto, NYC)

About the job Backend Engineer - Data (London, Toronto, NYC) We're building a new way to think and work with numbers. Causal is a tool for performing calculations, visualising data, and communicating with numbers. We take the good parts of spreadsheets and combine them with the good parts of prog ...

Senior Backend Engineer — AI Integrity & Safety

A leading AI research company is seeking a software engineer to design systems for harm detection and safety. This role requires at least 5 years of backend engineering experience and a passion for learning from top experts in the field. Candidates should be comfortable navigating ambiguity and possess strong co ...

Senior Ruby Backend Architect – E‑commerce

A luxury tech brand in Greater London seeks a Backend Engineer with expertise in Ruby to design and implement scalable systems for their e-commerce platform. The ideal candidate has 7–8+ years of experience in backend development, strong skills in API development, and familiarity with cloud infrastructure. They ...

Senior Backend Engineer — AI Platform Infrastructure

A leading AI workflow builder in the UK is seeking a Senior Backend Engineer to develop and scale infrastructure for financial services. The ideal candidate has over 7 years of experience in backend engineering, with expert Python and FastAPI knowledge. Responsibilities include designing robust backend systems a ...

Senior Backend Engineer — Hybrid, Equity & APIs

A leading AI platform for debt markets seeks a Senior Backend Engineer to join their Structured Credit team. You will lead projects, mentor junior developers, and enhance the backend services for a cutting-edge CLO product. A strong background in Python and API development is essential. The role offers competiti ...

Senior Golang Backend Engineer – Platform & APIs

A payment service provider in London is seeking a Senior Software Engineer to design, develop, and maintain core APIs and event-driven services. The ideal candidate will have over 5 years of professional software development experience, strong Golang expertise, and a collaborative spirit. This role offers the ch ...

Senior Infrastructure Engineer — High Scale Backend

A fast-growing AI startup in Greater London is seeking skilled backend engineers to handle massive datasets. You will collaborate within a small team, ensuring robust and efficient data operations. This role demands experience with PostgreSQL and Clickhouse, along with a passion for building impactful solutions. ...

Senior EdTech Backend Engineer – Learning Platforms

A leading EdTech company seeks a Senior Backend Platform Engineer to design and build scalable backend services for their digital learning platforms in London. The ideal candidate will have strong experience in backend engineering, RESTful API design, and cloud systems. This full-time position offers the opportu ...

Staff Backend Engineer in London Zego

Senior Software Engineer, Machine Learning Location: 108 E 16th Street, New York, NY 10003 Overview Focus on Python-based backend systems as the primary area of work. Provide support for Machine Learning initiatives and may collaborate with Scala and Mobile teams depending on inter ...

Senior Backend Engineer Python & ML Collaboration

Senior Software Engineer, Machine Learning Location: 108 E 16th Street, New York, NY 10003 Overview Focus on Python-based backend systems as the primary area of work. Provide support for Machine Learning initiatives and may collaborate with Scala and Mobile teams depending on inter ...

Lead Backend Engineer, Data Infrastructure (Golang)

A global digital asset platform is seeking a Lead Software Engineer for its CoinDesk Data Engineering team in the UK. The role involves owning projects, driving operational standards, and ensuring quality in software delivery. Candidates should have over 6 years of backend development experience, proficiency in ...

Backend Engineer Core Graph Database Kernel

A leading graph database company is seeking a Software Engineer for their Kernel team in London. The role involves solving complex problems, developing storage engines, and writing high-quality code. Ideal candidates have experience with multi-threaded systems, proficiency in Java or C-style languages, and stron ...

Software Engineer (100% Backend, Python & AWS)

Software Engineer (100% Backend, Python & AWS) London (Hybrid – 3 days/week in Farringdon office) Full-time, salary: £60,000-80,000 Job Summary Are you passionate about architecting the data and application platform that powers the next generation of AI products? Do you ...

Staff Backend Engineer Distributed Systems & Lakehouse

A leading data and AI company in Greater London is seeking an experienced Software Engineer to join as a founding member of their London site. The role involves tackling complex technical challenges across various domains and contributing to the development of scalable, secure services. Candidates should have ov ...

Senior Backend Engineer — Architect Scalable Microservices

A leading global marketing company is seeking a Senior Backend Engineer to design and develop scalable backend systems for their unified marketing platform. This hands-on role requires strong expertise in Python and modern development patterns, with a focus on performance, reliability, and observability. You wil ...

Backend Engineer in London Kurt Geiger

Our Tech Stack: We use a variety of tools and technologies but you are not expected to have worked with all of them. Our technology stack includes: NodeJS TypeScript React GraphQL Amazon Web Services Mulesoft PHP Snowflake </ ...

Senior Backend Engineer Distributed Data Platform

A leading data and AI company in London is seeking an experienced Software Engineer to enhance their Lakehouse Platform. The role focuses on building reliable and secure services for data storage and access, requiring 8+ years of experience in Java, Scala, C++, or similar. Candidates should possess a BS in Compu ...

Senior Backend Engineer Scalable Systems (Remote)

A dynamic software development firm seeks a Senior Back End Software Engineer to design and maintain high-quality software solutions. Candidates should have over 7 years of experience, particularly with Python and FastAPI, alongside strong skills in AWS and Kubernetes. This role offers remote work flexibility an ...

Backend Engineer – Scalable Travel API (Equity)

A technology company in travel is seeking an API-focused engineer to simplify travel distribution and booking. You'll design and build innovative APIs while collaborating with diverse teams on technical standards. Ideal candidates will have a passion for API design, an interest in Elixir, and excellent communica ...

Backend Engineer — AI Powered Data Platform

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 ideal candidate ...

Go Backend Engineer — AI‑Powered FinTech

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 development proc ...

Backend Engineer for Solana Perpetuals Exchange

A crypto-native market-making firm is seeking a Software Developer to design and build core systems for a high-performance perpetual futures exchange on Solana. Candidates should have over 3 years of experience, strong skills in Rust, and familiarity with trading systems. This role offers a unique opportunity to ...

Senior Backend Engineer Fraud & Crypto Platforms

A leading crypto company in Greater London is looking for a Senior Back-End Engineer. This role involves developing scalable APIs and optimizing systems while ensuring security and performance. Candidates should have extensive experience with JVM languages like Java or Kotlin, and a customer-focused mindset. The ...

Staff Software Engineer (Optimizely Analytics, Backend)

Press Tab to Move to Skip to Content Link Select how often (in days) to receive an alert: Create Alert Staff Software Engineer- (Optimizely Analytics, Backend) At Optimizely, we're on a mission to help people unlock their digital potential. We do that by reinventing how marketing and ...

Senior Backend Engineer — Carbon Insights Platform

A leading sustainability software company in Greater London seeks passionate individuals to join their product team. The role focuses on building systems that enable supplier engagement and manage carbon emissions data. Candidates should have experience with product development and a strong understanding of sust ...

Python Backend Engineer — REST APIs & PostgreSQL

Strong proficiency in Python (e.g., Django, Flask, FastAPI) Hands-on experience with PostgreSQL , including performance tuning and indexing Solid understanding of SDLC methodologies (Agile, Scrum, or Waterfall) Experience designing and consuming RES ...

Senior Backend Engineer SaaS Finance & Payments

A leading proptech company in London is seeking experienced Backend Engineers to enhance their accounting and distribution systems. Ideal candidates will have over 5 years of backend development experience with a strong focus on Ruby and Rails. Enjoy a flexible and remote-first work environment, competitive sala ...

Backend Software Engineer Search, Crawler Team

Backend Software Engineer - Search, Crawler Team (London, Belgrade, Berlin) Join to apply for the Backend Software Engineer - Search, Crawler Team (London, Belgrade, Berlin) role at Perplexity We are seeking an experienced Backend Software Engineer to join our Crawler team ...

Senior Backend Engineer (Ruby of Rails)

Sweatcoin is a London-based and well-funded scale-up with a team of 100 and the mission to make the world more physically active. Our iOS and Android apps have more than 150MM installs, 15M+ active users, more than 300 commercial partners and confirmed by the independent academic research ability to make o ...

Senior Backend Engineer FinTech AI Platform

A leading AI solutions provider in Greater London is seeking an experienced Senior Backend Engineer to design and implement robust backend systems. You will tackle technical challenges in AI and finance, collaborating with diverse teams to ensure secure and compliant processing of sensitive financial data. This ...

Backend Engineer, AI Platform – Equity Options

An innovative AI company in London is seeking a passionate Backend Engineer to develop and maintain scalable backend systems for their cutting-edge AI products. In this role, you will work closely with cross-functional teams to ensure high performance and reliability across systems. Ideal candidates will have a ...

Staff Engineer & Team Lead Backend & Architecture

A leading fintech company is seeking a Staff Engineer to lead and inspire engineering teams at their London office. The role includes coaching team members, overseeing complex projects, and contributing to a robust platform built primarily in Java. This position offers a collaborative environment and emphasizes ...

Lead Backend Engineer: Scale, Microservices & Impact

A leading insurance technology firm is looking for a Lead Backend Engineer to shape the future of their platforms. You will lead teams to design Python microservices, drive architectural discussions, and mentor other engineers. Ideal candidates have a strong background in backend engineering and experience build ...

Remote Backend SaaS Engineer — Python & API

A leading open source software company is looking for a talented software developer to create new features and improve the Landscape codebase. The role involves remote collaboration with a global team, committing to high-quality code and automated testing, and requires strong proficiency in Python and experience ...

Backend Engineer Own Production APIs & Systems

A leading technology firm in the UK is seeking an experienced Backend Engineer to design and develop APIs and backend services. You will manage infrastructure involving cloud platforms and ensure production-level software delivery. The ideal candidate has at least 2 years of experience, strong problem-solving sk ...

Engineering Lead: Backend (Node.js, TS, Cloud)

Une entreprise technologique à Londres recherche un Lead d'ingénierie orienté Backend pour diriger une équipe de 3 ingénieurs. Ce poste urgent implique la gestion de projets et la prise de décisions techniques clés. Le candidat idéal aura une solide expérience en ingénierie Backend et des compétences en Node.js, ...

Founding Backend Engineer – Equity & AI Ventures

A leading AI venture studio in the London Area seeks a Founding Engineer for backend development. You will shape services through implementing features, managing tech debt, and ensuring quality. The role requires 3-6+ years of experience, strong skills in Python and databases, and the ability to drive developmen ...

Backend Engineer – Real‑Time Energy Platform

A well-funded green energy startup is looking for an Entry-level Backend Engineer in London. You will play a critical role in architecting digital infrastructure for a cutting-edge energy platform, focused on global decarbonization. This position offers a unique opportunity to work on innovative technology in th ...

Lead Backend Engineer — REST Microservices, Hybrid

A leading recruitment agency is seeking a Staff Backend Engineer in Central London. The ideal candidate will have at least 4 years of experience in backend development, strong skills in TypeScript and Node.js, and a proven track record in designing REST microservices. This role offers a salary up to £95,000 plus ...

Senior Backend Engineer — Architect Scalable Microservices

A leading global marketing firm in Greater London seeks a Senior Backend Engineer to design and develop backend systems across its platform. In this hands-on role, you'll implement scalable and secure services, ensuring high engineering standards. Ideal candidates will have expertise in Python, FastAPI, and clou ...

Senior Backend Engineer — Architect Scalable Microservices

A leading global marketing firm in the UK is seeking a Senior Backend Engineer to lead the design and development of backend systems across OneSuite. This hands-on role requires expertise in Python and modern development patterns. The ideal candidate will collaborate cross-functionally to ensure systems are scal ...

Senior Backend Engineer — Architect Scalable Microservices

A global marketing and communications company is seeking a Senior Backend Engineer to lead the design and development of backend systems. This role involves writing high-quality code, architecting distributed services, and collaborating closely with teams. Candidates should have a strong background in Python and ...

Staff Backend Engineer (TypeScript) Microservices Leader

A leading recruitment agency is seeking a Full Stack TypeScript Staff Engineer to lead backend development in the financial services sector. You'll design scalable REST microservices and mentor engineering teams while promoting best practices. The ideal candidate has at least 4 years of backend development exper ...

Head of Backend Platform & API Product

A prominent mobile games company in Greater London is seeking a Product Director to lead product management for backend systems and internal SDKs. The ideal candidate will manage a team of TPMs, prioritize key projects, and help shape product direction across multiple game teams. Candidates should have strong pr ...

Senior Backend Architect — Real Time Gaming

A tech company in the gaming sector is seeking a Senior Software Engineer to shape the backend architecture for real-time tournaments. The role involves designing scalable systems, conducting code reviews, and optimizing performance bottlenecks. Ideal candidates have strong expertise in Domain-Driven Design and ...

Elixir Backend Engineer — Remote, Growth & Impact

A leading company in car insurance is seeking an Elixir Software Engineer to join their dynamic team in London. The ideal candidate will develop scalable systems and collaborate closely with stakeholders, promoting a culture of continuous learning within the team. With a flexible work policy and a focus on emplo ...

Senior Software Engineer — Backend & Platform Architect

A leading sports and gaming marketing company in Greater London is seeking a Senior Software Engineer to enhance their product and engineering capabilities. The ideal candidate will focus on backend services and the integration of applications and data. Responsibilities include leading technical roadmaps, mentor ...

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