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Senior Backend Software Engineer Infrastructure

A World-Changing CompanyPalantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more.The R ...

Software Engineering Manager (Backend SaaS)

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

Ruby on Rails Backend Engineer

Senior Ruby on Rails Engineer Fulham (2/3 days on-site) £60,000 - £80,000 + Private Healthcare & BenefitsThis is an excellent opportunity for a Mid-to-Senior Ruby on Rails Engineer to join a start-up in a role where you will play a major part in future developments.This co ...

Senior Backend Engineer Data Governance

Company Description Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed. Whether people and businesses are sending money to another country, spending abroad, or making and receiving int ...

Senior Backend Engineer Commercial Technology

Your MissionAs a Backend Engineer in our Commercial cluster, you will be at the heart of On's digital ecosystem. You will design, build, and scale the critical services that power our global e-commerce platform, B2B partner portals, and retail experiences. Your work will directly impact how we d ...

Full Stack Engineer (Backend Heavy)

ABOUT QUANTUMLOOPAIQuantumLoopAI is one of the UK's fastest-growing healthtech companies. Our AI-powered platform, EMMA, is used by hundreds of organisations across the UK to manage communications, automate workflows and deliver better outcomes through intelligent automation. Backed by leading investor ...

Senior Backend Engineer Data Governance

Company Description Wise is a global technology company, building the best way to move and manage the world’s money. Min fees. Max ease. Full speed. Whether people and businesses are sending money to another country, spending abroad, or making and receiving int ...

Senior Product Engineer (Backend) London

About SequenceIf you join Sequence, you'll help build the platform that lets companies get paid - we’re already processing $1bn+ in annual invoice volume and growing fast.We're building the AI-powered revenue platform for modern finance teams, replacing fragile spreadsheets ...

Backend Engineer – Music Tech – PHP

Job Description The Role As a senior backend PHP engineer for this scaling Music Tech Startup you will join a team of 5 to deliver on a variety of greenfield projects and new feature builds. You will join a supportive and collaborative team that regularly meets and enjoy cel ...

Ruby on Rails Backend Engineer

Senior Ruby on Rails Engineer Fulham (2/3 days on-site) £60,000 - £80,000 + Private Healthcare & BenefitsThis is an excellent opportunity for a Mid-to-Senior Ruby on Rails Engineer to join a start-up in a role where you will play a major part in future developments.This co ...

Senior Backend Engineer Commerce Platform

The Subscriptions Mission team focuses on building the systems and experiences that help Spotify acquire, convert, and retain subscribers around the world. The team works across product, engineering, and data to power Spotify’s subscription offerings, ensuring seamless purchase, billing, and customer service ...

Backend Engineer Spend Clearing & Transactions

Company Description Wise is one the fastest growing companies in Europe and we’re on a mission: to make money without borders the new normal. We’ve got over 16 million customers across the globe and we’re growing. Fast. Current banking systems don’t let us send, spend or rec ...

Backend Engineer Spend Clearing & Transactions

Company Description Wise is one the fastest growing companies in Europe and we’re on a mission: to make money without borders the new normal. We’ve got over 16 million customers across the globe and we’re growing. Fast. Current banking systems don’t let us send, spend or rec ...

Senior Backend Engineer Commerce Platform

The Subscriptions Mission team focuses on building the systems and experiences that help Spotify acquire, convert, and retain subscribers around the world. The team works across product, engineering, and data to power Spotify’s subscription offerings, ensuring seamless purchase, billing, and customer service ...

Backend Engineer – Music Tech – PHP

Job Description The Role As a senior backend PHP engineer for this scaling Music Tech Startup you will join a team of 5 to deliver on a variety of greenfield projects and new feature builds. You will join a supportive and collaborative team that regularly meets and enjoy cel ...

Staff Backend Engineer Data Platform

Staff Backend Engineer - Data PlatformTeam: Engineering & DataLocation: Depop - LondonCompany DescriptionDepop is the community-powered circular fashion marketplace where anyone can buy, sell and discover desirable secondhand fashion. With a c ...

Mid Backend Software Engineer Python

About ZepzZepz is the group powering two leading global remittance brands: WorldRemit and Sendwave. Since 2010, we have been disrupting an industry previously dominated by offline legacy players with our relentless focus on reducing the cost of remittances and increasing safety and ...

Staff Backend Engineer Data Platform

Staff Backend Engineer - Data PlatformTeam: Engineering & DataLocation: Depop - LondonCompany DescriptionDepop is the community-powered circular fashion marketplace where anyone can buy, sell and discover desirable secondhand fashion. With a c ...

Mid Backend Software Engineer Python

About ZepzZepz is the group powering two leading global remittance brands: WorldRemit and Sendwave. Since 2010, we have been disrupting an industry previously dominated by offline legacy players with our relentless focus on reducing the cost of remittances and increasing safety and ...

Backend Software Engineer C# .Net AWS

This range is provided by Client Server. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Client Server Backend Software Engineer / Developer C# .Net AWS (Junior - Mid) London to ...

Junior .Net Developer Commodities Trading

Bonhill Partners are currently supporting a Global Energy Trading company to expand their Front Office Quantitative Engineering Team with a .Net Developer. The role focuses on building and maintaining high performance analytics platforms and services used directly by traders and quantitative teams. <h3 ...

Ruby on Rails Developer — Ownership, Equity & Hybrid London

A fast-growing technology business is looking for a Ruby on Rails Developer in London (hybrid). You'll work on a modern platform focusing on backend services and APIs, with the opportunity to influence architectural direction in a small team. The role requires 2+ years' experience in Ruby on Rails or Python, and ...

SAP ABAP Developer: Shape AI Driven SAP Solutions

A leading technology firm in the United Kingdom is searching for an SAP Developer eager to innovate beyond traditional roles. This position offers the chance to influence technical direction, collaborate on backend services, and engage with AI-driven features. Ideal candidates should have a strong background in ...

Frontend Engineer Cloud UI & Design Systems (Hybrid)

Nordcloud is seeking a Front End Developer to join their UK team. This role involves designing modern frontend applications for cloud-based platforms and collaborating with UX, backend engineers, and cloud teams. You will need a strong grasp of JavaScript, responsive design, and relevant UI frameworks like React ...

Impactful Full Stack Developer, Client Solutions

A leading financial technology firm in Greater London is seeking a Full Stack Software Developer to create robust end-to-end solutions. The candidate should have experience in Angular or similar frameworks, alongside backend technologies like C#. Responsibilities include building high-quality applications, colla ...

Remote Senior Backend Engineer — Go/Kubernetes & Open Source

Xata.io is seeking a backend developer to join our team, responsible for database offerings and API services. This remote role requires significant experience in systems-level software, especially in Golang, along with strong knowledge of distributed systems and Postgres. You'll have the opportunity to contribut ...

SAP ABAP Developer: Shape AI Driven SAP Solutions

A leading technology firm in the United Kingdom is searching for an SAP Developer eager to innovate beyond traditional roles. This position offers the chance to influence technical direction, collaborate on backend services, and engage with AI-driven features. Ideal candidates should have a strong background in ...

Frontend Engineer Cloud UI & Design Systems (Hybrid)

Nordcloud is seeking a Front End Developer to join their UK team. This role involves designing modern frontend applications for cloud-based platforms and collaborating with UX, backend engineers, and cloud teams. You will need a strong grasp of JavaScript, responsive design, and relevant UI frameworks like React ...

Ruby on Rails Developer — Ownership, Equity & Hybrid London

A fast-growing technology business is looking for a Ruby on Rails Developer in London (hybrid). You'll work on a modern platform focusing on backend services and APIs, with the opportunity to influence architectural direction in a small team. The role requires 2+ years' experience in Ruby on Rails or Python, and ...

Senior Backend‑Focused Full‑Stack Engineer — Scale Impact

A leading educational technology company in Greater London is searching for a Full-Stack Developer to engage in backend and frontend development using cutting-edge technologies like Python and Django. The ideal candidate will thrive in a collaborative environment and drive innovation through data-driven decision ...

Real Time UI Engineer (React/TypeScript) – Trading

A leading global financial services firm is seeking a React Developer to create high-performance trading UIs. The role involves working closely with product owners, designers, and backend engineers to deliver seamless trading experiences while integrating live data streams. The ideal candidate should have profic ...

FinTech Full Stack Developer (C#/.NET, TS) – Hybrid

A leading FinTech company in London is seeking a Full Stack Developer / Software Engineer. You will work with C# and TypeScript on their flagship trading product, with the opportunity for remote work and a competitive salary of up to £65k. The ideal candidate will have experience in backend development and famil ...

Senior Full Stack Innovator (Hybrid) – London

A leading consulting firm in the UK seeks a Senior Full Stack Developer to design and deliver scalable application solutions utilizing cloud platforms like Azure and AWS. The role demands expertise in backend development, REST APIs, and modern technologies including Python and React. You'll collaborate with cros ...

Mid Senior Python Backend Engineer — AI/ML Focus (Europe)

A small AI-driven software house is looking for a mid-senior backend Python developer to create high-quality software solutions. You will work closely with product owners and senior engineers. The role offers a competitive salary between £60,000 and £70,000, with the flexibility to work from anywhere in Europe. ...

AI/ML Backend Engineer — Python, Azure, FastAPI

GlaxoSmithKline is seeking a skilled Backend Developer to create and maintain Python web applications. The ideal candidate will have a Master's degree and solid experience in Python development, including cloud infrastructure and AI/ML integration. Responsibilities include designing software architecture, implem ...

Backend Software Engineer — AI Driven Platform

A tech-driven marketing solutions company is seeking a Software Developer to shape the next generation of its AI-native platform. The role involves designing robust features, building scalable backend systems, and collaborating with teams to deliver high-quality software. Ideal candidates have over 4 years of de ...

Full Stack Python Developer – Enterprise Platform

A global financial services provider is seeking a Software Developer for its Enterprise Technology team. This role focuses on building and evolving backend solutions using Python and AWS services. Candidates should have strong experience in API development and familiarity with automated CI/CD practices. The posi ...

Backend .NET Engineer — Onsite, Central London

A tech organisation in Central London is seeking an experienced .Net Developer to join their backend team. In this role, you will design and develop software applications aimed at improving internal systems and client solutions in high-regulated industries like Finance and Healthcare. The ideal candidate should ...

FinTech Backend Engineer (Python/Django) – London Hybrid

Signify Technology is seeking an experienced Python Developer with expertise in Django and SQL/PostgreSQL for a hybrid role in London. The successful candidate will develop and maintain web applications and backend systems specifically in the FinTech industry. Key responsibilities include writing clean code, opt ...

VP, Equities Tech Full Stack Engineer (Kotlin/Python)

Citi is seeking a Vice President Developer for their Strategic Equity Solutions team to design and develop innovative software solutions enhancing trader workflow. The successful candidate will possess strong backend skills in Kotlin/Python and a deep understanding of trading workflows. This role offers substant ...

Senior Backend Engineer Build Scalable Green Tech

Octopus Energy based in London is looking for a backend developer with 5+ years of experience in web application development, particularly with Python and Django. The role involves designing systems in cloud environments and collaborating across teams to create impactful products. An exceptional candidate will h ...

Remote Senior Backend Engineer — Go/Kubernetes & Open Source

Xata.io is seeking a backend developer to join our team, responsible for database offerings and API services. This remote role requires significant experience in systems-level software, especially in Golang, along with strong knowledge of distributed systems and Postgres. You'll have the opportunity to contribut ...

Senior Cloud Full Stack Engineer (Three.js, Vue)

A leading technology company in London is looking for a Senior Full-Stack Developer to join their Cloud Services team. The successful candidate will design and deliver powerful cloud-based tools for immersive experiences. Required skills include strong backend expertise in Django or Laravel, frontend expertise i ...

Senior Backend Engineer: Platform & Architecture for B2B SaaS

A pioneering tech startup in Greater London is seeking a talented engineer to define product direction and shape backend architecture. This role is key in building solutions for customer problems and enhancing the developer experience. If you thrive in early-stage environments and have a proven track record in B ...

Azure Cloud Full‑Stack Engineer: Build Modern Cloud Apps

A leading technology company in the UK is seeking an Application Developer specializing in Azure Cloud FullStack development. You will contribute to cloud-native applications using Azure services and collaborate with experienced professionals. This role requires expertise in developing rich UI applications and s ...

AI/ML Backend Engineer — Python, Azure, FastAPI

GlaxoSmithKline is seeking a skilled Backend Developer to create and maintain Python web applications. The ideal candidate will have a Master's degree and solid experience in Python development, including cloud infrastructure and AI/ML integration. Responsibilities include designing software architecture, implem ...

Senior Backend Engineer Build Scalable Green Tech

Octopus Energy based in London is looking for a backend developer with 5+ years of experience in web application development, particularly with Python and Django. The role involves designing systems in cloud environments and collaborating across teams to create impactful products. An exceptional candidate will h ...

VP, Equities Tech Full Stack Engineer (Kotlin/Python)

Citi is seeking a Vice President Developer for their Strategic Equity Solutions team to design and develop innovative software solutions enhancing trader workflow. The successful candidate will possess strong backend skills in Kotlin/Python and a deep understanding of trading workflows. This role offers substant ...

FinTech Backend Engineer (Python/Django) – London Hybrid

Signify Technology is seeking an experienced Python Developer with expertise in Django and SQL/PostgreSQL for a hybrid role in London. The successful candidate will develop and maintain web applications and backend systems specifically in the FinTech industry. Key responsibilities include writing clean code, opt ...

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