backend engineer jobs in Farringdon

Senior Backend Engineer Salary: £120K - £140K + Equity Location: London in office Data Idols are working with a rapidly scaling software company who are looking for a Senior Backend Engineer to join their team. The product sits at the intersection of AI systems, complex data workflows, and enterprise-grade reliability, turning sophisticated technology into tools that can be trusted in...

You will architect "Tier 0" services that filter and protect content across Who You Are * Expertise: Deep knowledge of Java and Python. The Stack: Experience with Ray, Apache Beam/Scio, dbt, and BigQuery. Mindset: Comfortable leading in ambiguous problem spaces and delivering end-to-end solutions at scale.

Senior Backend Developer Salary: Up to £90,000 per annum Client: Leading Data Centre Provider We're working with a well-established Data Centre Provider to recruit a highly experienced Senior Backend Developer. This is a remote role open to UK-based candidates, offering the chance to work on large-scale systems that support critical national infrastructure. This is an excellent opportunity for...

Data Engineer – SC Cleared - AWS - Inside IR35We are supporting a major government data transformation initiative to strengthen the use of evidence-based insights across frontline and operational teams. As part of a new capability being built to process and analyse sensitive interview information, the programme requires Data Engineers to design, deliver, and optimise secure backend data...

IBM DataPower Engineer – Mainframe Modernisation (Contract) We’re recruiting for an experienced IBM DataPower Engineer to support a large-scale mainframe modernisation programme within a complex enterprise environment. This is a contract role, ideal for specialists in secure API integration and legacy-to-digital transformation. The Role You’ll design, build and support high-performance...

Lead Software Engineer Stealth AI Fintech Startup | London | Hybrid (3 days on-site) We’re hiring on behalf of an innovative Fintech startup that is building an AI-driven platform that’s rethinking how investors analyse, access, and manage alternative assets (e.g. private equity, private credit and other private markets). They've built there MVP, raised funding from experienced fintech founders...

Senior Full Stack Developer – Java & React Build Products That Shape High‑Stakes Decision‑Making I have partnered with a fast-growing tech firm who are building AI powered tools used by Fortune 500 business leaders. They are enabling them to make critical decisions across the business and have reportedly been ranked as #1 in their field! They’re scaling quickly, backed by major investment, and...

Overview We're hiring a Founding / Senior Software Engineer to join a well-funded, early-stage AI product team based in London. This is a hands-on, high-ownership role for someone who enjoys building real products from the ground up and wants meaningful influence over technical direction, architecture, and delivery. The product is already live, customer-facing, and built around applied AI...

You will provide solutions across both Azure and AWS technologies and importantly have a demonstrable background in C#.

Your new company Working for a renowned commodity, metals, trades and exchange group. You'll be a key part of the Enterprise Data team helping to replace legacy ETL tools (Informatica) and deliver modern data engineering capabilities. Your work will include managing data pipelines, supporting analysis and visualisation, and collaborating with ETL developers and wider technology teams to deliver...

You will own engineering execution for a platform that processes large datasets, supports distributed computation, and integrates machine‑learning capabilities at scale. The engineering organisation already uses AI‑assisted development, and you will refine these practices, improve delivery predictability, and strengthen the technical foundation for long‑term growth.

We’re looking for a Senior-level Software Engineer with strong JavaScript/TypeScript skills and experience across modern web stacks. You’ll be instrumental in our transition away from Drupal as we modernise and scale our platform. Tech Stack: At least 6-8 years commercial experience with JavaScript or TypeScript and Node Exposure of Laravel and/or Python (Django or Flask a...

You will play a key role in designing, developing, and maintaining applications built using Laravel, PHP, Vue, TypeScript, MySQL, and AWS services. The position combines hands-on development with technical leadership, contributing to architectural decisions, modernisation of legacy systems, and mentoring of other developers.

Android Developer Location: Central London (Onsite) Employment Type: Permanent Salary: £50,000 - £70,000 (DOE) Visa Sponsorship: Not available We're working with a growing organisation based in Central London that's looking to hire a Native Android Developer to join their mobile engineering team. This is a onsite role, ideal for someone who enjoys close collaboration, hands-on development, and...

Software Engineer – PHP & Golang Fully Remote – Within UK PHP / Golang / JavaScript £60,000-£65,000 I’ve recently partnered with a leading Prop-Tech business in London who are looking to add a Software Engineer to their team who specialises in PHP & Golang! The company have seen rapid success over the past 10 years and have built an advanced platform used by their expanding portfolio of...

Senior / Lead AI Engineer – AI-First Product Platform Tech4Good Location: Remote-first (UK) | London preferred Salary: Negotiable Engagement: Permanent preferred (contractors also considered) I’m working with a high-growth, product-led technology company that is embedding AI at the core of its platform rather than treating it as an add-on. They already operate a mature, production system and are...

Lead Java Developer - £140k, Equity, Sign-on Bonus Java25, Springboot, Microservices, AWS, TDD, React I am working with a high‑growth FinTech that’s about to enter a huge new chapter. They are a fast‑scaling FinTech that’s in the middle of a major rebrand, new name, new logo, and a shift to a truly global financial platform. The full reveal is coming in this quarter, and the energy inside the...

You will take a lead role in building high-quality, accessible, and maintainable front-end solutions across a single-page admin platform and a progressive web application. Working closely with UX, design, and backend developers, you will help shape front-end architecture, improve performance, and mentor other engineers.

You will own the lifecycle of services that handle identity verification, risk assessment, and onboarding for a global partner base.

Junior / Mid Level Data Engineer - SC Cleared Inside IR35: £450 - £500 per day Hybrid: Once a week in London Start date: ASAP We are supporting a major government data transformation initiative focused on strengthening the use of evidence-based insights across frontline and operational teams. As part of a new capability being built to process and analyse sensitive interview information, the...