backend engineer jobs in Clerkenwell

You will push the frontier of AI for an under-explored, massively valuable domain. - Team: We are a small, collaborative, world-class research team based in central London. - Founding level equity + competitive salary: We want you to share in the upside of what we are building.

Generative AI Full Stack Engineer - Managing Consultant Salary: £80,000 - £88,500 pa + £8,000 Bonus plus benefits, perks and healthcare options Job Type: Permanent - Hybrid / 2 x days per week - Travel to client site Base Locations: London, Manchester, Newcastle, Glasgow Overview: We’re looking for a GenAI Full Stack Engineer who is passionate about solving real-world challenges through...

Design Engineer (AI Products) – National News Platform Day rate: £650 (Inside IR35) Duration: 6 months Location: Central London (Hybrid – 3 office days) We’re looking for a Design Engineer with strong UX/UI craft, interaction design expertise, and front‑end product-building experience to redefine the future of AI‑driven digital experiences for a major national news platform used by...

You will be the bridge between support, engineering, and cloud operations - Investigating and fixing complex application and infrastructure issues. - Monitoring capacity, performance, and error budgets across all deployments. - Designing automation and tooling to improve reliability and reduce manual work.

🚀 Software Engineer – Agentic AI 🚀 ✨ Fintech start-up backed by serial entrepreneurs ✨ 💎 The kind of equity you actually realise 💎 📍 London - 4 days in office 💸 £100k - £200k base (level-dependent) 💲 $160k equity vested over four years 💗 Onsite chef, barber, catered breakfasts, gym membership Join this rapidly scaling AI-native Fintech start-up that’s already raised a significant Series A...

We are looking for a Data Engineer who will design and implement customer data solutions that enable personalised experiences while ensuring privacy, quality, and accessibility of customer information across all touchpoints. Length: 12 months Location: London, UK Environment: Hybrid - 2-3 days in the office Key responsibilities: - Leading engineering decisions for customer data, including...

The Role We are hiring Full-Stack Data Engineers across multiple levels (Junior through Senior Manager) to design, build, and deliver secure, scalable data solutions for complex client environments. This is a hands-on engineering role where you will work across data ingestion, transformation, operational workflows, and decision-support systems. You’ll partner closely with client stakeholders to...

You will work end-to-end across the stack — building intuitive, performant front-end experiences and robust server-side systems that power our core platform. This is a key role where you’ll help shape architecture, influence product direction, and deliver high-impact features from concept to production.

Scope Akkodis is establishing a pioneering IT & Digital Centre of Excellence (CoE), designed to drive transformative technology programmes across the UK. This dynamic new team will play a key role in delivering large-scale digital, cloud, software, and infrastructure projects, supporting both public and private sector clients. By leveraging cutting-edge technology, strategic partnerships, and...

Technical Product Manager £60,000–£65,000 We’re looking for a Technical Product Manager to act as the link between engineering and product within a fast-growing, sports-focused organisation. This role suits someone from a software engineering background who understands how systems are built and is either looking to move into product management or has already made that transition. You’ll help...

HCLTech is a global technology company, home to more than 220,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare,...

Job Title: UI Developer Location: Bromley Working Pattern: Full Time, Hybrid – 3 days in the office Contract Length: 12 months with potential for extending Daily rate: Circa 700 per day via an Umbrella Are you a passionate UI Developer looking to make an impact in the finance industry? Do you thrive on building modern, scalable, and user-friendly web interfaces? If so, we have an exciting...

Product Manager - Payments London – 5 days in office £70,000 + bonus We are looking for a Payments Product Manager to support UK domestic payment platforms (FPS & Bacs). This isn’t a generic PM role. You’ll be embedded within engineering squads, working across the full SDLC while also taking ownership of run-the-bank operations. You’ll ensure operational excellence, resolve incidents, triage...

Scala Developer - UK/Remote My client are seeking a talented Scala Developer to join their engineering team and contribute to the design and development of scalable, high‑performance applications. This role involves working on modern distributed systems, building APIs, and collaborating with cross‑functional teams to deliver enterprise‑grade solutions. Key responsibilities: - Design, develop...

You will work in a small, elite team, reporting into the CRO and partnering closely with senior investment professionals and the risk leadership, with real ownership and visibility over what you build.

You will be solving open-ended problems, making architectural decisions, and shaping how analytics and risk are embedded into the investment process.

You will work across mobile app and IoT product UI/UX, payment and billing systems, and the end-to-end operational infrastructure required to scale a hardware-enabled consumer product in Europe.

You will serve as the critical link between local business operations, local user needs, and our distributed engineering teams in Japan, China, and Taiwan.

FRESH has partnered with a fast-growing, SaaS company who are looking for a Senior PHP Engineer to join its engineering team at an exciting stage of growth. The business builds modern, cloud-based software used by enterprise clients across the global hospitality, spa, and wellness industry. Following significant recent funding, this role offers the opportunity to have a real impact on product...

You will play a key role in designing, developing, and operationalising data-centric solutions that underpin modern AI and LLM-based applications. Key Responsibilities - Design and develop data-driven applications and services that support analytics, ML, and LLM use cases - Build and orchestrate data workflows and LLM pipelines using LangChain and/or LangGraph

You will play a critical role in assuring the quality, reliability and robustness of digital solutions across a wide range of client engagements.

You will be responsible for designing, implementing and maintaining high-quality automated testing solutions, providing confidence that systems meet functional and non-functional requirements across accessibility, performance, security and integration.

You will help push the frontier of AI-native data systems in an under-explored, massively valuable domain - Team: A small, collaborative, world-class research and engineering team based in central London - Founding-level equity + competitive salary: Meaningful ownership alongside a salary that lets you focus on building something great