backend engineer

Backend Engineer - Java / Kotlin / Spring Boot London - Hybrid (1 day per week) Up to £100,000 + Share Options Unfortunately, sponsorship cannot be provided I'm working with a growing technology startup looking to hire a Backend Engineer to join its engineering team in London. They're looking for someone who is genuinely strong technically - not just...

As a Backend Engineer, you will take real ownership of the systems that power a fast-growing LLM-native product. This is a hands-on role focused on building reliable, high-performance backend services while shaping the foundations of a small, senior engineering team.What You Will DoDesign and build scalable backend services and APIs supporting LLM-driven...

Backend Engineer (on-site/London) - up to £260k A high-growth blockchain infrastructure company is building the next generation of ultra-fast trading and digital asset platforms, and were looking for an exceptional Backend Engineer to join the London team onsite. If you thrive in high-performance environments, love tackling complex engineering...

We're making energy fair, clean, and simple for all using technology. Octopus Energy started with a bold idea: to build Britain’s first truly digital energy supplier. By combining world-class tech with brilliant humans who care deeply about customers and driving the renewable energy transition, we made it happen and in 2025, we became Britain’s largest...

TL;DR: We're looking for exceptional builders who help us design and ship the foundational infrastructure that lets Conduct scale to the world's largest enterprises, while accelerating the product teams building on top of it.Why ConductThe world's largest companies are slowed down by the software they run on. We’re building the AI operating system that...

Backend Engineer (3+ Years Experience) — Job Description Role: Backend Engineer Experience: 3+ Years Location: [Your Location / Remote / Hybrid] Employment Type: Full-time About the Role We are looking for a skilled Backend Engineer with 3+ years of experience building scalable, reliable, and high-performance backend systems. You will work closely with...

Hello. We're Teya.If the following job requirements and experience match your skills, please ensure you apply promptly.Teya was founded on a simple belief: local businesses deserve better.They are the cafés, restaurants, salons, shops and entrepreneurs that bring character to our high streets, create jobs and keep communities moving. Yet for too long,...

Job DescriptionAll potential applicants are encouraged to scroll through and read the complete job description before applying.Backend EngineerUK Fintech | £90k | LondonThe RoleWe're representing a UK fintech whose technology is used by businesses across the payments and financial-services space.They're now looking to add a Backend Engineer to a growing...

Staff Software Engineer – AI-Enabled Backend PlatformsLocation: UK (Remote)Salary: £77,000 – £92,000The OpportunityWe’re partnering with an innovative organisation building scalable, data-driven platforms at the forefront of modern engineering.They’re looking for a hands-on Staff Software Engineer—someone whobines strong system design and...

Job description Backend Engineer (TypeScript, Node.js & AI) – Remote (UK or EU) We're hiring a Backend Engineer to join a growing FinTech business that is using technology to modernise and simplify complex financial processes for institutional and corporate clients. This is an opportunity to join a collaborative engineering team working on scalable,...

VOY is a fast growing Healthtech scale-up, aiming to be the healthcare provider that millions of people trust as their partner to a long and healthy life. Our platform allows users to quickly and safely diagnose possible conditions, get treatment and support them afterwards to live a higher quality life. To do this we are building an all in one healthcare...

About kwiffWe aren’t gambling as you know it. We’re a proprietary tech platform redefining the experience with a bold, player-first approach. Our signature feature, Supercharging, randomly boosts odds, cashouts and casino sessions, creating genuine moments of surprise and delight for our users. ⚡We have launched iOS, Android and Web apps, offering our...

Who We Are    At Intropic, we’re building the future of financial intelligence, where deep market expertise meets the power of AI. Founded in London’s financial centre of Canary Wharf, we exist to transform complex data into clarity, precision, and action. Our culture is shaped by truth-seeking, velocity, and ownership, values that drive how we build,...

Job Description Senior Backend Engineer / C# / Backend / APIs / Software / Cardiff / Permanent / Hybrid /   Vivo Talent is working with a business that has huge growth plans for this year. We're actively working with them to recruit a backend engineer into their team, with strong hands-on experience with C# to help build and evovle their strategic...

Reference: 4805987Job ID: 5400116Posted: 2026-06-18Closing date: 2026-09-16Location: United KingdomSalary: 77k – 92k (per annum)Job type: PermanentWorking pattern: Full timeIndustry: Scientific and R&D / Software DevelopmentCompany: HaysConsultant: Edward MarshallHays office: Cambridge — 1st Floor, Terrington House, 13 - 15 Hills RoadPhone: Email:...

Job DescriptionWe’re hiring a talented and experienced Backend Engineer to join an agile product development team working on modern web applications and scalable platforms. You’ll be responsible for building, maintaining, and optimising server-side logic and APIs, and contributing to full-stack solutions using JavaScript/TypeScript, Node.js, and...

Backend Engineer🌍 About OutpostWhat if going global was as simple as going local?Outpost is building the AI global trade engine. The accumulated knowledge of every rule you'd need to sell internationally, turned into infrastructure. Tell us what you're selling. We'll tell you how to sell it everywhere.We operate as Merchant of Record or Tax of Record...

DescriptionSeedLegals is the leading provider of automated legal solutions for startups, with offices in London, New York and Paris. Since launching in 2016, we’ve supported over 75,000 startups who have collectively raised more than £2bn on our platform.We’re a Series A company backed by Index Ventures, on a mission to make entrepreneurship more...

About 9fin9fin is the AI platform powering global debt markets — the world’s largest asset class at over $145 trillion.Debt markets are vast, global, and mission-critical, yet still run on fragmented data, PDFs, and manual workflows. 9fin replaces this broken infrastructure with a single platform that centralises proprietary credit data, deep analysis,...

Who We Are Lightning AI is the company behind PyTorch Lightning. Founded in 2019, we build an end-to-end platform for developing, training, and deploying AI systems—designed to take ideas from research to production with less friction. Through our merger with Voltage Park, a neocloud and AI Factory, Lightning AI combines developer-first software with...