Jobs for back-end developer at London

Backend DeveloperPulse.io (ONQOR Group)Full Timec£70,000/Annum Pulse.io, part of our ONQOR Group, are currently recruiting for a Backend Developer to join the team responsible for developing our cutting-edge Predictive Sentiment Analytics tool. We are a Private Equity backed start-up with ambitious plans to launch our product in a way that...

This Back End Developer position will give you the chance to work on a greenfield project with an already-successful product to work from as a guide.You'll join a small team of developers who are skilled across the board and are looking for 2 more developers to join them, who they can upskill if required.The overall stack is:ReactReact...

Sientia is building the infrastructure that makes card-linked and Open Banking loyalty actually work at scale. We sit at the centre of a network connecting the UK’s biggest banking and payments platforms - Revolut, Lloyds/Cardlytics, Monzo, Tide, Santander, British Airways and more - with brands who want to reach and reward real customers based on real...

We’re building LLM-powered workflow tools to support investment research for private market investors, used by leading private equity and consulting firms globally. The company is profitable, bootstrapped, and growing quickly, with a team of 30+ across London, NYC, and Sydney. The Role This is a high-ownership backend engineering role focused on building...

Requirements:- 1+ year of experience with Magento ecommerce development - Experience in using GIT- Experience in using Composer- Light linux sys admins skills is an advantage - to help in debugging / performance tweaks.- Experience with tools like bitbucket / JIRA / Hipchat / Bamboo etc. is also a plus- Reporting to Team Leader regarding the...

Company DescriptionAbout CivilizationThe Community Investment Vehicle (CIV): the world’s first fully decentralized investment fund. Transforming the way how staking and investment are done, with 100% auditable code rather than manual work.Build your own portion of our technological and social revolution and enter the future of finance. Civilization is open...

Back End Developer £500-£540 per day | Outside IR35 Java | Spring Boot | Secure Microservices LocationLondon (MOD site) Working Pattern4 days per week onsite ClearanceCurrent DV Security Clearance required BackgroundMOD / Defence experience required The Opportunity We're looking for an experienced Back End Developer to help build the core services...

Back End Developer £500-£540 per day | Outside IR35 Java | Spring Boot | Secure Microservices LocationLondon (MOD site) Working Pattern4 days per week onsite ClearanceCurrent DV Security Clearance required BackgroundMOD / Defence experience required The Opportunity We're looking for an experienced Back End Developer to help build the core services...

If you need support in completing the application or if you require a different format of this document, please get in touch with at UKI.recruitment@tcs.com or call TCS London Office number 02031552100 with the subject line: “Application Support Request”. Job Type: Permanent Location: London, UK / Hybrid Number of hours: 40 hours per week – full...

We’re looking for a Founding Engineer to help build and scale the core platform of a regulated fintech product. This is a high‑trust, high‑impact role for someone who enjoys ownership, understands production systems, and wants to grow with the company. You’ll work closely with the CTO to design, build, and operate a secure, scalable API‑driven...

Salary: £? - ? per yearRequirements:Proven software development experience within MOD, Defence, National Security or similarly secure environments.Strong commercial Java development experience.Expertise with Spring Boot.Experience designing and developing RESTful APIs.Strong SQL and NoSQL database experience.Experience with Docker, Kubernetes or other...

OverviewRecruitment Consultant at TechShack London. Senior - Lead Backend Developer | Node, Typescript, MongoDB | Hybrid, up to £90kWe’re looking for a highly experienced Backend Developer to join a fast-growing, ambitious start-up. This is a chance to design and build robust, scalable systems that power a product with real impact. You’ll be working...

Segmentify is an e-commerce personalization platform helping online retailers to optimise their conversion rates by enabling them to deliver a unique shopping experience for each visitor. Segmentify tracks each individual visitor’s behaviour in real-time and offers smart product recommendations by utilising in-house developed AI technology.We have a...

Back End Developer £500-£540 per day | Outside IR35 Java | Spring Boot | Secure Microservices Location: London (MOD site) Working Pattern: 4 days per week onsite Clearance: Current DV Security Clearance required Background: MOD / Defence experience required The Opportunity We're looking for an experienced Back End Developer to help build the core...

About The Role What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in London to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products — from data pipelines and model-serving infrastructure to scalable...

Senior Backend Engineer – Remote first, London office (UK) I’m working with an exciting client who is looking for a Senior Backend Engineer to join their mission-driven team transforming frontline public services with AI. This is a unique opportunity to work on cutting-edge technology that helps teams delivering citizen services, from employability and...

About The Role We’re looking for a proactive Midweight Back-End Developer with at least 3 years of hands‑on experience to help support and maintain the websites we develop. You’ll work with our Client Support team day‑to‑day, with support from the wider Technical team, including our Senior developers. Our aim is to deliver high‑quality code, so...

Senior Back-End Developer (Java Microservices) Duration: 12 months Location: London, UK Working hours: Full time Onsite requirements: 4 days in the office Day Rate / Hourly Rate: £84.39 per hour PAYE (inclusive of holiday) OR £100 per hour Umbrella YOU MUST HAVE BLOCKCHAIN EXPERIENCE - Smart contracts / Ethereum and etc. Right to work: Applicants must have...

Back End Developer (Node.js)Senior Software Engineer – Pricing & Inventory (Node/TypeScript)Contract: 6 months initiallyRate: Up to £420 per day, Outside IR35Location: Can be worked fully remoteWe’re supporting a high-traffic global e-commerce platform in its search for a Senior Software Engineer to improve its pricing, inventory and availability...

RoleSenior Software Back End DeveloperFTC - 6 MonthsManagerLead Development ManagerLocationUK Remote (must live in UK)Role OverviewWe are looking for an experiencedSenior Back-End Developerto join an innovative and collaborative environment. In this role were building a next generation data and integration platform using Python, TypeScript and GoLang that...