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You'll lead backend development, shape our cloud infrastructure across AWS and GCP, and make key architectural decisions that influence the future of the platform. Own the design, development, and operation of the core backend services that power our consumer-facing products and internal operational

Senior Python Backend Engineer (AI/LLMs). Backend services for AI-driven workflows.

Senior Backend Python Engineer (UK-based (remote), ~£130-150K + perks). This isnt a ticket-taker backend role. Leading backend development across event-driven, high-availability systems.

Are you a senior Backend Engineer who enjoys building platforms from the ground up? Do you thrive in start-up environments where you can own architecture, shape engineering culture and solve genuinely meaningful technical problems?. As Lead Backend Engineer, you'll take ownership of the company's cl

Were looking for a Mid/Senior Backend Engineer to join a team that keeps frameworks lean and focuses on what matters: clean, maintainable code.

Job Title: Senior Software Engineer Location: London Victoria, Hybrid Reports to: Head of Platform Overview A bit about us At nudge we believe people need to be in control of their finances. Role purpose We value our senior engineers as product thinkers and technical leaders. You'll help design and

A high-growth technology organisation is looking for a Senior Software Engineer (. The successful candidate will be responsible for building scalable backend services, developing data models, and implementing data pipelines that transform vast amounts of data into actionable insights.

A London-based fashion-tech platform is seeking a backend software engineer to develop RESTful APIs and internal tools.

A leading bank in the United Kingdom is seeking an experienced Backend Engineer for a 6-month contract role.

A leading telecommunications company in the United Kingdom is seeking a Senior C# Developer with over 4 years of experience.In this role, you will collaborate with the Principal Architect to deliver innovative back-end solutions.Ideal candidates will possess a strong foundation in C# 5 and.RESTful a

Plum is seeking an experienced AI Platform Engineer to join the AI Platform team. You will work on back-end systems, distributed services, and platforms that support multiple squads, using LangChain, ADK, Terraform, and cloud services; the role emphasizes reliability, observability, cost efficiency,

Aristocrat in the City of Westminster seeks a Senior Software Engineer (Backend) to design and build scalable cloud-based services using Java and Spring Boot. Candidates should have 5–8+ years in software development with a focus on backend systems.

As a Senior Backend Engineer, you will own end-to-end delivery from idea to production, collaborating with cross-functional teams, and keeping systems reliable as we grow. Zinc is expanding its engineering team in London to build robust APIs and partner integrations that power Zinc's data across cus

A high-growth technology organization in the UK seeks a Senior Software Engineer (. In this hybrid role, you will develop scalable backend services and data pipelines that turn transactions into valuable insights.

This role sits at the intersection of data architecture and backend engineering. ABOUT THE ROLE: You will work closely with product, data, and engineering teams to build resilient pipelines, coherent data models, and scalable backend services that support a wide variety of use cases across the organ

A growing technology company in the UK is seeking a hands-on Senior Software Developer to lead backend feature development.

Experian is seeking a Backend Senior Software Engineer based in the City of Westminster, UK. Your responsibilities include owning the entire Software Development Lifecycle and collaborating with Engineers and Data Scientists. In this role, you will design, build, and operate backend systems that imp

Wireless Logic is hiring a Senior Java Software Engineer to drive backend services and APIs, with occasional frontend tasks.

Candidates should possess strong backend engineering experience with Scala or Kotlin, understand distributed systems, and have a solid grasp of clean code and CI/CD practices. Advanced Resource Managers Ltd is seeking a Senior Scala/Kotlin Engineer for a hybrid role in London, requiring 2-3 days on

Certus Recruitment is partnering with an innovative fintech business operating at the intersection of financial services, digital assets, and modern software engineering. They are building a highly regulated next‑generation payments platform and seek two Senior Software Engineers to join their gro

Jobgether is seeking a Senior Java Developer to join a remote-first engineering team in the United Kingdom. You will design and build scalable backend systems, processing large data volumes while ensuring reliability and performance.

You'll drive features end‑to‑end, from discovery through to deployment and monitoring, scoping the solution, weighing the trade‑offs, and contributing to the squad's engineering quality, all in close partnership with Product, UX, Operations, and fellow engineers. We've raised a $42 M Series�

Techfellow Limited is looking for a backend-focused engineer to support its growing digital platform based in London. With a keen emphasis on ownership, the candidate should have 5-9 years of software engineering experience and be comfortable improving existing systems for a high-concurrency environ

This role involves building backend solutions with modern technologies such as Java and AWS, ensuring the platform meets the needs of families worldwide. Life360 seeks a Staff Software Engineer AI-Native to design high-quality services for international members, focusing on AI integration.

Algolia is looking for a Senior Software Engineer for their Dashboard Platform team, focusing on infrastructure automation.

As a Senior Software Engineer I, you will own complex end-to-end engineering work, shaping architecture and product strategy while guiding teams toward robust production systems. You will mentor engineers, lead technical interviews, and collaborate with product managers to align technical solutions

London is seeking a Senior Python Backend Engineer to join its platform team on a six-month contract. You will work in a small engineering team, own services with commercial impact, and tackle challenges around latency, reliability and changing page structures while integrating with trading systems.

A forward-thinking AI startup in Greater London is seeking a Senior Product Engineer to lead projects and architect high-performance backend systems using Node.

Pertemps Bond is seeking a Senior / Lead Full Stack Engineer with a strong Golang focus. The role involves designing and delivering scalable full-stack systems, with backend emphasis on Go and frontend work in Vue. Hybrid work model requires two days per week in Central London, collaborating with pr

Palantir is seeking Software Engineers to build scalable data-driven software on Foundry, Gotham, and related platforms.

Depop Limited is seeking a Senior Backend Software Engineer to own and evolve core APIs and services within the Platform Pillar. You will collaborate with engineering managers, product managers, and platform teams to design scalable and reliable backend systems used by millions of users. You will jo

We're looking for engineers who are ambitious and take ownership end-to-end: from identifying what to build, through shipping, to making sure it works for real customers. We're a lean team growing to 20+ engineers. You’ve shipped production backend systems and care about the difference between "it

Senior Software Engineer I - Receiveat Wise • London, United KingdomBack to jobs4h agoW## Senior Software Engineer I - ReceiveWise00Software EngineeringFull-timeGBP 87000 - GBP 111000 - yearlyLondon, United Kingdom✓ Visa Relocation### Job DescriptionWise is a global technology company, building

Sequence in Greater London is seeking an ambitious Software Engineer to take ownership of backend systems that power billing for B2B companies. You will work with Kotlin and Spring Boot to tackle complex technical challenges while having a significant influence on the backend architecture.

Lockwood Publishing Ltd is seeking a Senior Software Engineer for our backend team working remotely (EU/UK based). You will help scale Avakin Life’s backend systems, delivering reliable and secure services for millions of players.

Valarian is hiring a Senior Backend Engineer to design, build and operate backend services for the ACRA platform. Remote or London-office flexibility awaits a driven, product-minded engineer.

Software Programmer (Manufacturing Systems / MES).About the role We are seeking a motivated and hands‑on Software Developer to support the design, development, enhancement, and maintenance of business‑critical manufacturing systems.This role will be responsible for del….Job Overview We are see

Butternut Box is seeking a Senior Software Engineer to lead backend and web development for our Acquisition Squad. You will collaborate with product managers, designers, growth marketers, and engineers to optimize signup funnels, referrals, and landing pages. The role emphasizes backend work (Ruby o

The emphasis sits firmly on backend and platform engineering, with the expectation that you can contribute across infrastructure, data, and occasionally front-end/mobile when required. We’re supporting a fast-scaling digital platform operating in the online prize and gaming space, as it strengthen

United States Digital Space LLC is seeking a Senior Software Engineer to join our agile team. You'll have autonomy and a significant impact on building core backend services for our platform used by major companies like Spotify and Google. This role requires at least 8 years of experience in backend

A tech company in the HR sector is seeking a Senior Backend Engineer to join their Payroll Foundations team. This role involves building and maintaining backend systems for payroll processing, ensuring accuracy and reliability. Candidates should have strong experience in backend systems, proficiency

Alphasights is seeking a Senior Backend Engineer to join our UK-based remote team. You will own backend services, collaborate with product and design, and contribute to an architectural vision that scales our research platform.

An innovative tech company in Greater London is seeking a Senior Product Engineer to push boundaries in AI-native CRM development.

Searchability® is seeking a Senior Backend Engineer to join an innovative tech company in the UK. Enjoy the autonomy to influence product direction, work in a fast-paced environment with a small engineering team, and benefit from remote work with monthly visits to the London office. You will take o

We are seeking a Senior Product Engineer (Backend) to own end-to-end design, architecture, and implementation of our Kota Embed APIs and developer-focused documentation.

This hands-on leadership role combines architecture, backend development, and delivery leadership while guiding a small team of engineers. RevTech is hiring Lead Software Engineers to build scalable, high-impact FinTech products in a regulated environment. You will collaborate with Product and Engin

You will own quarterly goals, lead engineers through ambiguity, and collaborate with product management, design, analytics.

Harmonic Security, Inc is seeking a Backend Engineer to join Customer Engineering, shaping the initial function and delivering fast, reliable support to customers.