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This hands-on IC role focuses on scalable backend systems and operating at scale, reporting directly to the Head of Engineering and CTO/Co-Founder. Oliver Bernard is seeking a Principal Engineer for a London-based, YC-backed AI startup.

Senior Product Engineer [Backend]. As a Senior Product Engineer, you will own features end-to-end, architecting scalable backend systems that process 250,000+ events per minute, working directly with Node. Work under VP Engineering Philip Beevers, who previously led 600+ engineers at Google Cloud an

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

Depop is seeking a Senior Backend Software Engineer to join our Platform Pillar, owning and evolving core APIs and services. You’ll shape the technical direction of key backend systems, enhancing scalability and reliability while reducing risk. You’ll collaborate with engineering, product, secur

Jobgether is seeking an experienced Senior Product Engineer (Backend) based in the United Kingdom. You will design scalable APIs and backend foundations powering embedded insurance and retirement solutions, owning architecture and delivering high-value features.

Strong understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency and security expectations; experience coaching engineers on safe, compliant adoption within delivery practices. Our engineers

The role involves designing, building, and maintaining Java-based backend systems, with a focus on cloud-native and microservices architectures.

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.

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

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

While Go experience is preferred, strong backend engineers from other languages who can demonstrate rapid adaptability and a track record of delivering at scale are welcome to apply. Drive architectural improvements, set the standard for code quality, and ensure our systems are performant, reliable,

TypeScript, collaborate across product and engineering teams, and mentor junior engineers while maintaining a product‑minded approach and strong ownership in a hybrid London office setup. Areti Group | B Corp™ is seeking a backend-focused engineer to join their high‑performing team in London.

Bachelor’s degree in computer science, Engineering, or a related field, or equivalent practical experience. Experience using agentic AI to automate engineering workflows such as testing, code reviews, documentation, operational support, and data quality monitoring. Experience influencing technical

Compare the Market in the United Kingdom is seeking a Software Engineer – AI Native Platforms to help build production-grade software, backend services and AI-enabled platforms that accelerate engineering and scale across teams. You will work with experienced engineers on AI technologies, integrat

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

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.

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.

While our focus is on backend systems, there are also opportunities to influence and contribute to other parts of the company, including the editor and the runtimes. Scalability and reliability engineering, ensuring the company stays fast and stable as we grow. Proven track record of owning and deli

You will lead design discussions, write robust code in Python/Go/Java, and mentor engineers, contributing to a. VulnCheck is seeking a Senior Software Engineer to design, build, and scale core systems for vulnerability intelligence. This fully remote role requires proximity to Cheltenham, UK, and co

You will drive performance, resilience, data quality and observability across critical systems, mentoring engineers and owning production reliability during. Vanguard is seeking a Senior Backend Developer to design and deliver real-time and historical investment data platforms in a hybrid London set

Cisco ThousandEyes is seeking a Backend Technical Leader for the Connected Devices Platform to drive scale, resilience and new architectures. You will own high-volume streaming and backend services, shaping API design and data models to deliver reliable experiences.

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

Want a traditional engineering team set up, with a predictable roadmap and clearly scoped out tickets provided for you. Backend: Kotlin (modular monolith using Http4k, Spring Boot, Exposed, Result4k). We're looking for engineers who are ambitious and take ownership end-to-end: from identifying what

We're looking for experienced backend engineers who care deeply about reliability, performance, and scalability. You think like a user, not just an engineer. Hi, I'm Paul, VP of Engineering at Customer.

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

A leading technology firm in Greater London is seeking a Security & Backend Engineer to enhance its core data solutions. The ideal candidate will own backend services and ensure data and system security, balancing feature delivery with long-term hardening. You should have over 5 years of experience

Close collaboration with software engineers (backend and mobile), product managers, data scientists, and designers to deliver rapid value to end-users. In this role, you’ll be working alongside a team of talented engineers and partner with product, design, and data science to prioritize, estimate,

The London Metal Exchange in London is seeking a Senior Engineer to join the new technology team supporting the SPM program, delivering production-grade services and APIs. You will design, build, and optimize backend services, collaborate with product, operations and vendors, and champion automated

Lead Backend Engineer to own the platform, architect scalable cloud systems, and lead a migration from Firebase to a cloud-native Google Cloud Platform solution in London. You will collaborate with robotics, computer vision and AI teams to productionize research into robust services while shaping en

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

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

As a Security & Backend Engineer, you will own core pieces of our Scala + Python backend while raising the bar on how we protect data, systems, and customers. Own backend and security work on mission‑critical systems. Work directly with founders and the Head of Engineering.

Lead Engineer, Back End, Agentic intelligence. Job Opportunity at Choreograph: Back-End Engineer. Choreograph is seeking an experienced and forward-thinking Back-End Engineer to lead the development of our ecosystem of (primarily).

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

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

Spendesk is seeking a Backend Software Engineer (IC3) to reinforce our PDE organization and build the foundations for AI-powered experiences. A collaborative, autonomous engineer who thrives in fast-paced fintech environments will fit well.

While our focus is on backend systems, there are also opportunities to influence and contribute to other parts of Rive, including the editor and the runtimes. Scalability and reliability engineering, ensuring Rive stays fast and stable as we grow. Proven track record of owning and delivering backend

You’ll develop scalable backend services, improve CI/CD pipelines, and collaborate with an engineering team on high-scale systems in a hybrid London environment. This role offers a modern engineering setup and opportunities to work with cutting-edge cloud technologies.

Location: Chattanooga, TN ( onsite ).Company: the company is the modern marketplace & intelligence platform for trading cards.Note: The provided text contains multiple postings and generic placeholders.Specific responsibilities and qualifications are not clearly defined in the excerpt and would requ

Relevant engineering experience for a team building an enterprise‑grade SaaS product delivering AI‑powered video generation; billing systems, experimentation platforms, video delivery systems, online editors, real‑time collaboration and so on. Engineering Manager about your past projects. Live

Experience influencing technical strategy across multiple teams and driving organization‑wide engineering improvements. Fitch Group is currently seeking a Software Engineer - Associate Director based out of our New York or London office. Lead and mentor a high-performing software engineering team,

United States Digital Space LLC in Greater London is seeking a Senior Backend / AI Infra Engineer to design, build, and evolve our R&D infrastructure, spanning build systems, artifact management, data distribution, and the software supply chain.

Dwelly is seeking a Senior Backend Engineer to build and own Dwelly’s internal Data Migration Platform, connecting to legacy CRMs and orchestrating extraction, validation and safe import into the core platform.

The Trade Desk is a global technology company in London seeking a Lead Staff Software Engineer to own backend systems for a high-traffic data platform. You will design, build, and operate core services, mentor engineers, and collaborate across teams to drive technical direction in a fast-paced envir

Rive is looking for a Senior Software Engineer to join our Backend Team in London. In this role, you will develop core backend services that support the Rive editor and ensure a seamless user experience.

We are seeking a Senior Back-End Engineer who thrives on solving hard technical problems, building robust systems, and engaging with customers to bring ambitious ideas to production quickly. You will work closely with the Founding Engineer (ex Meta) and CTO (ex OpenAI) in a high-ownership, collabora

The role emphasizes leadership, modern backend skills with Go and TypeScript/Node. Industrial and Financial Systems is seeking a Lead/Senior Lead Software Engineer to drive the design, development, and implementation of cloud-based enterprise solutions in an AI-enabled environment.