backend developer jobs in Hackney

Scala Developer - UK/RemoteMy 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 and...

Senior Backend Kotlin Developer (AWS)Salary: Up to £130,000Location: London (Hybrid – 2 days per week in office)Experience: 8+ yearsThe RoleWe’re looking for a highly experienced Senior Backend Kotlin Developer to join our growing engineering team. You’ll play a key role in designing, building, and scaling robust backend systems that power mission-critical products, working closely with product,...

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...

Senior .NET / React Developer - Global MarketsInside IR35 Contract Role - London - Up to £850 per dayAbout the Role:We are currently seeking an experienced Senior .NET Developer to join a leading global financial institution in London. This is a 6-month contract with strong likelihood of extension, working on critical desktop applications within their Global Markets technology team.Key...

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.

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, 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, Technology and...

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.

🚀 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 membershipJoin this rapidly scaling AI-native Fintech start-up that’s already raised a significant Series A and is now...

You will take full ownership of the end-to-end ecommerce journey—from platform management and conversion rate optimisation to performance marketing and customer retention.

You will be the architect of our email marketing, using Klaviyo to build sophisticated lifecycle flows (welcome, abandoned cart, post-purchase, and win-back) that turn one-time buyers into lifelong fans.

Senior .NET / React Developer - Global MarketsInside IR35 Contract Role - London - Up to £850 per dayAbout the Role:We are currently seeking an experienced Senior .NET Developer to join a leading global financial institution in London. This is a 6-month contract with strong likelihood of extension, working on critical desktop applications within their Global Markets technology team.Key...

Senior Backend Kotlin Developer (AWS)Salary: Up to £130,000Location: London (Hybrid – 2 days per week in office)Experience: 8+ yearsThe RoleWe’re looking for a highly experienced Senior Backend Kotlin Developer to join our growing engineering team. You’ll play a key role in designing, building, and scaling robust backend systems that power mission-critical products, working closely with product,...

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.

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...

Scala Developer - UK/RemoteMy 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 and...

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, 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, Technology and...

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, 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, Technology and...

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.

Senior .NET / React Developer - Global MarketsInside IR35 Contract Role - London - Up to £850 per dayAbout the Role:We are currently seeking an experienced Senior .NET Developer to join a leading global financial institution in London. This is a 6-month contract with strong likelihood of extension, working on critical desktop applications within their Global Markets technology team.Key...

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...

Scala Developer - UK/RemoteMy 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 and...