Backend Developer Jobs in London

Salary: £105,000 - 130,000 per year Requirements: A bachelors degree in Computer Science, Engineering, or a related field. Advanced degrees are a plus. 6-8 years of professional ex

Mindrift is looking for skilled Bot Developers (WhatsApp Business API, Telegram Bot API, Discord API) to join the Tendem project ( https://tendem.ai/ ) and build conversational bot

Salary: £99,000 - 99,000 per year Requirements: Strong commercial experience with Scala Experience building high-quality, scalable backend services Exposure to microservices, REST

At Ripple, we’re building a world where value moves like information does today. It’s big, it’s bold, and we’re already doing it. Through our crypto solutions for financial institu

Raytheon UK have a full time, perm opportunity for a Senior Software Engineer to join our specialist teams in Manchester, Gloucester or London working fully onsite. As Senior Softw

Contract Technical Product Owner, 12 months, Leeds or London We help organisations navigate the future of technology, combining human expertise, emerging tech and AI to deliver bet

Who we are Samsara (NYSE: IOT) is the pioneer of the Connected Operations™ Cloud, which is a platform that enables organizations that depend on physical operations to harness Inter

Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions fo

Location: London, UK (In-Office) Experience: 5 years required Compensation: £140,000 - £200,000 equity Visa Sponsorship: Not available About Corgi Corgi is vertically integrating

As crypto goes mainstream, so does crypto crime. At Elliptic, we create products that enable financial institutions, investigators, and crypto businesses to stay ahead of emerging

Backend Software Engineer / Developer (C# .Net Rust Low Latency HFT) London / WFH to £80k Opportunity to join a hugely profitable High Frequency Trading firm that specialise in cry

Hybrid in Central London Inside IR35 - Up to £700 per day We are seeking Senior Python Developers with proven experience building trading and risk systems within investment banking

We don’t just believe in better. We make it happen. Better content. Better products. And better careers. Working in Tech, Product or Data at Sky is about building the next and the

Hey! We’re Plum, your smart saving and investing app on a mission to help grow money for life. Whether you’re stashing the cash for tea and toast in your first home or catching som

Salary: £? - ? per year Requirements: Proven experience as a Full Stack Developer. Strong commercial experience with AWS cloud services. Solid frontend development experience with

Salary: £? - ? per year Requirements: We must have recently worked on a project within Central Government. We must have worked in a lead role. We must have strong Python and Django

Salary: £40,000 - 70,000 per year Requirements: Strong experience in C# and modern backend development Solid understanding of TypeScript and React Proficiency with PostgreSQL or si

Salary: £? - ? per year Requirements: Solid programming skills in Python, plus experience with web libraries such as FastAPI, Flask, or Django Hands-on experience with ML model dep

Salary: £85,000 - 85,000 per year Requirements: Highly proficient in building production systems in Node.js and TypeScript Strong backend development skills Frontend experience wit

Salary: £49,000 - 89,000 per year Requirements: We require fluency with Java. We require 4 years of experience in backend development. We require a bachelors degree in computer sci

Reed.ai is looking for a Senior Developer to join their team in Holborn, London. Overview Join a collaborative, forward-thinking team that values creativity, experimentation, and i

Senior Software Engineer Location: UK Remote / Hybrid Salary: up to 80,000 ABOUT THE COMPANY Financial Times' fastest-growing software company in Europe, this is an AI and automati

Our client is an ecommerce leader in the consumer space, and is investing heavily in building AI-powered products, intelligent automation solutions and next-generation customer exp

Robert Half Technology are assisting UK's market leading media organisation to recruit a Backend Developer on a 6-12 month contract basis We are looking for a talented Backend Deve

Backend Python Developer (Azure AI) Location: Remote / Hybrid Type: Full-time Our client is a fast-growing consulting business building an AI-driven platform on native Microsoft Az

Principle 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 exper

Integration Developer (Backend + DevOps Focus) Location: Fully Remote Pay: 550- 600 per day (Outside IR35) Duration: Initial 6-month contract (with strong extension potential) The

Role: Learning Platform & Qualifications Lead Location: Remote (UK-Based) with occasional travel to London & Cotswolds Contract: Full Time, Permanent We’re looking for a Le

Robert Half Technology are assisting a global market leading e-commerce organisation to recruit a Backend Engineer on a 6 months contract basis. Hybrid working - London based As a

Backend Engineer (Java / Kotlin / Spring Boot) Must have Java, Kotlin, Spring Boot and startup experience. Unfortunately sponsorship is not available. London Hybrid (1 day per week

Backend Engineer (Python / FastAPI) Fast-Growing Sports AI Company KEY POINTS Hybrid role based in London Build real time, data rich applications for the sports industry Small, fas

Infrastructure Engineer (Performance Optimization) Role Type: 6-Month Contract (Remote, UK-based) Rate: Upto 650 Per Day (Umbrella / Inside IR35) Role Summary Seeking a hands-on In

Lead Backend Engineer London (4-5 Days Onsite per week) Up to 120,000 + Equity AI Startup An early-stage AI startup is hiring a Lead Backend Engineer to help build the technical ba

Software Developer Annual Salary: 40k - 45k, dependent on experience Location: Cannon Street, London Job Type: Permanent - 4 days a week onsite  Start Date: Immediately A

Backend Python Developer (Azure AI) Location: Remote / Hybrid Type: Full-time Our client is a fast-growing consulting business building an AI-driven platform on native Microsoft Az

Role: Java Backend Developer with Data Platform Type: 6 Months Contract Location: London, UK (Fully REMOTE) Working Model: Fully REMOTE Payrate: 450 - 550 per Day on PAYE 530 - 630

Senior .NET Developer | C#, .NET 8, Azure | 60,000- 90,000 We're looking for a Senior .NET Developer to help design, build, and maintain modern, cloud-based applications that are c

Location: Hybrid (On-site London 2 days per week) Role Overview We are looking for a Junior PostgreSQL Developer to join our data streams. In this role, you will play a critical pa

Senior Software Engineer (Backend) London - Hybrid (3 days in office) Up to 85k + benefits What if the systems you built were used every day by millions of readers around the world

We’re working with a growing product-led tech business that’s building software used at scale, where reliability and pragmatism matter just as much as clean code. They’re looking f