Principal Backend Engineer — Architect & Mentor

Company IconOpenr
Location IconLondon

A growing SaaS platform in London is seeking a Principal Engineer to provide technical leadership and develop backend systems. The ideal candidate is proficient in TypeScript, Node.js, and has cloud infrastructure experience. You will mentor other en...Read More>>.

Posted: April 17th, 2026
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Senior PMM: Developer Platform & API Ecosystem

Company IconTechBrains
Location IconLondon

A leading technology company in London is looking for an experienced Senior Product Marketing Manager. The role emphasizes driving adoption of the developer ecosystem. Candidates should have over 5 years of product marketing experience, strong commun...Read More>>.

Posted: April 17th, 2026
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Software Developer - Enterprise Technology [Node JS / Typescript]

Company IconMarex Group
Location IconLondon

Software Developer - Enterprise Technology (Node JS / Typescript) London, GB Full-Time Information Technology About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essen...Read More>>.

Posted: April 17th, 2026
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Senior Software Engineer — Build Scalable Systems

Company IconCarina Software Group
Location IconLondon

A leading software company in the UK seeks a senior Java or C++ developer to join the Software Development team. The role focuses on developing and maintaining the RokDoc desktop application, involving collaboration with geoscience experts and other...Read More>>.

Posted: April 17th, 2026
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Backend Engineer, Core Technology

Company IconSoftware Careers
Location IconLondon

As a Backend Engineer on Stripe's Core Technology team, you'll build the financial infrastructure that powers the internet economy. You'll work on mission-critical payment systems, design resilient APIs, and collaborate with world-class enginee...Read More>>.

Posted: April 17th, 2026
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Low-Latency C++ Developer for Options Market Making

Company IconMaven
Location IconLondon

A leading trading firm in Greater London is seeking a motivated software developer to build systems for market making. You will collaborate with traders and developers to create low latency exchange connectivity and optimize trading strategies. Ideal...Read More>>.

Posted: April 17th, 2026
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Post-Trade ETD Software Engineer - Operations

Company IconRex Technologies GmbH
Location IconLondon

A global financial services platform is seeking a software developer to join its ETD Operations Technology team. The role entails enhancing applications supporting post-trade workflows. You will work with operations and other technology teams ensurin...Read More>>.

Posted: April 17th, 2026
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Staff Software Engineer – Elixir Health AI Platform

Company IconLunar
Location IconLondon

A healthcare technology company in Greater London is searching for a Staff Software Engineer to join its innovative team. You will work on modern cloud-native software solutions aimed at revolutionizing healthcare systems. The ideal candidate has ove...Read More>>.

Posted: April 17th, 2026
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12 Month Internship - C# Developer

Company IconCrédit Agricole SA
Location IconLondon

We are seeking an Intern Developer with strong communication skills and a keen interest in Financial Services. This role offers the opportunity to work closely with front office users, including traders and risk analysts, providing significant...Read More>>.

Posted: April 17th, 2026
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Prediction Markets Software Engineer — Real-Time Trading

Company IconP2P
Location IconLondon

A leading diversified trading firm is seeking Software Engineers for their Prediction Markets Desk. The role involves building and maintaining trading systems that leverage real-time pricing and trading strategies, requiring strong proficiency in Pyt...Read More>>.

Posted: April 17th, 2026
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Java Software Engineer - Greenfield Trading Platform

Company IconVenture Up
Location IconLondon

A tech-centric startup in London is seeking a Java Software Developer to join their innovative team in the sports betting hedge fund sector. The role involves collaborating with talented researchers and engineers to develop integrations and support t...Read More>>.

Posted: April 17th, 2026
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PHP Developer Intern — Backend & API Builder

Company IconFreelancerprox
Location IconLondon

A modern tech firm is seeking a proactive PHP Developer Intern to join their development team in Greater London. This role offers a fantastic opportunity to gain real-world experience in backend and web application development using PHP. Interns will...Read More>>.

Posted: April 17th, 2026
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Front Office .NET Developer - Analytics & APIs

Company IconBonhill Partners
Location IconLondon

A global energy trading company is seeking a .NET Developer to join their Front Office Quantitative Engineering Team. This permanent role focuses on building and maintaining high-performance analytics platforms utilized by traders. Candidates should...Read More>>.

Posted: April 17th, 2026
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Java Developer (Junior-Mid) - Payments Platform

Company IconWorldFirst
Location IconLondon

A global payments company in Greater London is looking for a passionate Junior-Mid Java Developer to join their collaborative team. The role involves designing, developing, and implementing Java-based applications while ensuring scalability and perfo...Read More>>.

Posted: April 17th, 2026
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Senior Software Engineer, Market Making Platforms

Company IconRex Technologies GmbH
Location IconLondon

A global financial services platform is seeking a Market Making Senior Software Developer in Greater London. This crucial role involves delivering technology solutions to enhance market making capabilities across diverse asset classes. The ideal cand...Read More>>.

Posted: April 17th, 2026
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Python Software Engineer: Trading Systems Innovator

Company IconOld Mission
Location IconLondon

A global proprietary trading firm in Greater London is seeking a Software Engineer proficient in Python. This role involves refining trading systems and collaborating with quants and traders on innovative applications. The ideal candidate will have a...Read More>>.

Posted: April 17th, 2026
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Senior AI Software Developer

Company IconWorldQuant
Location IconLondon

WorldQuant develops and deploys systematic financial strategies across a broad range of asset classes and global markets. We seek to produce high-quality predictive signals (alphas) through our proprietary research platform to employ financial...Read More>>.

Posted: April 17th, 2026
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Backend Software Engineer – Fintech Platform (Node/TS)

Company IconFreetrade Limited
Location IconLondon

A leading investment platform in the UK seeks a Software Engineer to join their Backend Engineering squad. You will develop high-quality software and tackle complex technical challenges in a hybrid work environment. This role requires at least two ye...Read More>>.

Posted: April 17th, 2026
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Senior Java/C++ Developer for RokDoc Desktop

Company IconCarina Software
Location IconLondon

A leading software company in Greater London is seeking a senior Java or C++ developer to join their Software Development team in Surbiton. You'll work on the flagship RokDoc desktop application, focusing on high-quality coding and collaboration with...Read More>>.

Posted: April 17th, 2026
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Software Engineer II - Blockchain/ Digital Assets

Company IconJ.P. Morgan
Location IconLondon

As a Software Engineer II, you will join our London-based engineering team, contributing to the design, development, and delivery of Java, Python and TypeScript-based blockchain applications. Working alongside experienced engineers with...Read More>>.

Posted: April 17th, 2026
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Senior Software Engineer - Creatures Tools & Pipelines Lead

Company IconDNEG
Location IconLondon

A leading visual effects company is looking for a Senior Software Developer to join their team in Greater London. This role involves software development and team management, contributing to the development of frameworks and tools for Creatures techn...Read More>>.

Posted: April 17th, 2026
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Backend Engineer, Platform & Integrations — Python

Company IconEdra
Location IconLondon

A Series A startup in Greater London is seeking Backend Engineers to design and build robust platform systems in Python and TypeScript. The role involves developing integrations, owning projects end-to-end, and collaborating with a high-caliber team....Read More>>.

Posted: April 17th, 2026
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Ruby Developer

Company IconNew Route Recruitment Limited
Location IconLondon

Overview We are on a mission to improve childcare in London, making it easier and more affordable for families to access flexible and high quality childcare. We are backed by fantastic investors, including top VCs who’ve backed compa...Read More>>.

Posted: April 17th, 2026
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AI-First BackEnd Developers and... err, cats.

Company IconMongoose Gray
Location IconLondon

Back-End Developer – Responsibilities The Back-End Developer will work for a fast-paced startup in Central London. The Back-End Developer will enjoy hybrid working. The Back-End Developer will design and build...Read More>>.

Posted: April 17th, 2026
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Backend Engineer – Scalable Data & APIs

Company IconPalantir
Location IconLondon

A leading software company based in Greater London is seeking a passionate Backend Software Engineer to architect, develop, and maintain high-performance backend systems. You will collaborate with cross-functional teams to create sophisticated data s...Read More>>.

Posted: April 17th, 2026
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Software Engineer - Python, LLM, SQL

Company IconHighbury Consulting
Location IconLondon

Software Engineer - Python/LLM, CI/CD, SQL London / EC4 Hybrid 4 days PW in office Full‑Stack Software Engineer / Python Engineer required by London based REinsurer. This is a newly created role that will...Read More>>.

Posted: April 17th, 2026
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Real-Time Media Software Engineer – Hybrid

Company IconCisco Systems
Location IconLondon

A leading technology company in Greater London is looking for a Software Engineer to join the Webex Real-time Media Engineering Group. The role involves full lifecycle development, focusing on innovative collaboration solutions. Candidates should hav...Read More>>.

Posted: April 17th, 2026
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Junior Software Engineer (Python) — Hybrid & Flexible Hours

Company IconNestlé
Location IconLondon

A pet food subscription service is seeking a Junior Software Engineer to join their team. You'll work within a cross-functional squad, design and maintain features, and collaborate to improve quality standards. Ideal candidates will have experience i...Read More>>.

Posted: April 17th, 2026
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Senior Staff Backend Engineer

Company IconMonzo Bank
Location IconLondon

...Read More>>.

Posted: April 17th, 2026
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Backend Engineer - Core Infrastructure

Company IconSoftware Careers
Location IconLondon

As a Backend Engineer on Spotify's Core Infrastructure team, you'll build and maintain the platform foundations that power Spotify for 600M+ users globally. You'll work on reliability, scalability, and developer tooling—ensuring engineering t...Read More>>.

Posted: April 17th, 2026
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Software Engineer, Prediction Markets - Real-Time Trading

Company IconDRW
Location IconLondon

A global trading firm in Greater London is looking for a Software Engineer to join its Prediction Markets Desk. The successful candidate will build systems from idea to production trading, involving real-time pricing and trade lifecycle management. T...Read More>>.

Posted: April 17th, 2026
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Hybrid Dynamics 365 Developer | Power Platform

Company IconW Talent
Location IconLondon

A well-established global company is seeking an experienced Microsoft Dynamics Developer/Administrator for a hybrid role based in Central London 2-3 days a week. In this position, you will configure Dynamics 365 modules, build and maintain Power Apps...Read More>>.

Posted: April 17th, 2026
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Junior Python Developer (Django/DRF) – FinTech

Company IconB2C2
Location IconLondon

A leading digital assets firm based in London is seeking a Python Developer to join their dynamic team. You will collaborate across multiple teams, developing efficient applications and enhancing in-house libraries. The role requires at least a year...Read More>>.

Posted: April 17th, 2026
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Backend Engineer (UK)

Company IconMayday Holdings Limited
Location IconLondon

Backend Engineer (UK) We're an accounting‑tech startup building automation and AI to eliminate the tedious manual spreadsheet‑based work that haunts in‑house finance teams every single month. We serve the mid‑market end of SMB:...Read More>>.

Posted: April 17th, 2026
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Senior Python Developer for FinTech Data Platform

Company IconHunter Bond
Location IconLondon

A well-established tech house in London is seeking a Python Developer to join their team focused on building innovative software for the finance sector. The ideal candidate will have strong Python and SQL skills, along with experience in REST Microse...Read More>>.

Posted: April 17th, 2026
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Mission Software Engineer: Field Deployments & AI

Company IconChaos, Inc.
Location IconLondon

A global technology company is seeking a Mission Engineer to drive software deployment and solve critical technical challenges. You will design, implement, and improve software, integrating data from edge sensors and applying machine learning solutio...Read More>>.

Posted: April 17th, 2026
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Staff Software Engineer - Warehousing - Blue Yonder Dispatcher

Company IconMarks and Spencer
Location IconLondon

Summary As part of the M&S Software Engineering team, you'll be joining a well-loved historic brand, working on solutions that serve millions of loyal customers and thousands of colleagues! With ethical values that run right through th...Read More>>.

Posted: April 17th, 2026
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Backend Engineer - Rails

Company IconRaylo
Location IconLondon

At Raylo, we’re on a mission to accelerate the move to a circular economy. The only way customers and manufacturers will make that shift is if it’s simple and cost-effective - this is where we come in. We’re building a category-defining g...Read More>>.

Posted: April 17th, 2026
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Senior SRE & Software Engineer, Application Middleware

Company IconBloomberg
Location IconLondon

A global technology firm in London seeks a Site Reliability Engineer to design high-performance systems and ensure reliability for their infrastructure. The role involves building production-grade software and conducting in-depth systems analysis. Ca...Read More>>.

Posted: April 17th, 2026
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Mid-Level Software Engineer (Python) - RegTech 2026 - UK

Company IconSuade
Location IconLondon

Suade is building world‑leading regulatory technology aimed at preventing the next financial crisis. Our success is built on the ability of our engineers to work hand‑in‑hand with domain experts, translating concepts from finance and regu...Read More>>.

Posted: April 17th, 2026
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Software Engineer – FinTech Payments, Cloud Native

Company IconCrown Agents Bank
Location IconLondon

A growing UK bank is seeking software developers to engineer state-of-the-art financial systems. The role involves designing and implementing scalable solutions, contributing to architectural discussions, and collaborating within a software engineeri...Read More>>.

Posted: April 17th, 2026
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AI Software Developer

Company IconWorldQuant LLC
Location IconLondon

WorldQuant develops and deploys systematic financial strategies across a broad range of asset classes and global markets. We seek to produce high-quality predictive signals (alphas) through our proprietary research platform to employ financial...Read More>>.

Posted: April 17th, 2026
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Mid-level Software Developer in Test

Company IconFX Digital Limited
Location IconLondon

Build the future of Test Automation for Connected TV Role We're looking for a Mid-level Software Developer in Test to join our Quality Engineering team at FX Digital. This is a hands‑on role for a genuinely self‑drive...Read More>>.

Posted: April 18th, 2026
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Energy Ops Software Engineer – Post-Trade & Data Integrity

Company IconMarex
Location IconLondon

A global financial services platform in Greater London seeks a Software Developer to join the Operations Technology team. This role involves maintaining and enhancing applications for post-trade operations across various asset classes, ensuring data...Read More>>.

Posted: April 18th, 2026
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Front-End Developer

Company IconQQFS (Qualitative & Quantitative Fieldwork Services)
Location IconLondon

Company Description Company Description About the Business Division This role is part of ONEHealth Communications, a subsidiary of M3 Inc., which is a specialist Healthcare Communications agency working in partnership w...Read More>>.

Posted: April 18th, 2026
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Senior Backend Developer (Django/Python)

Company IconUpdraft
Location IconLondon

Updraft. Helping you make changes that pay off. Updraft is an award winning, FCA-authorised, high-growth fintech based in London. Our vision is to revolutionise the way people spend and think about money, by automating the day to day d...Read More>>.

Posted: April 19th, 2026
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Go Platform Engineer — CI/CD & Developer Tooling

Company IconTeya
Location IconLondon

A payment and software service provider in London is seeking a Platform Engineer with strong Golang expertise to join its engineering organization. The role focuses on building and optimizing platform services to enable seamless software delivery at...Read More>>.

Posted: April 19th, 2026
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Hands-on Engineering Manager — React Native & JS

Company IconLegalAndGeneral
Location IconLondon

A leading financial services group in Greater London is seeking an Engineering Manager to lead a talented team of engineers. This role involves delivering high-quality React Native solutions and applying your software engineering expertise across tea...Read More>>.

Posted: April 22nd, 2026
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Senior Backend Engineer

Company IconPublicis Groupe UK
Location IconLondon

Company Description Company DescriptionPublicis Media harnesses the power of modern media through leading agency brands Dysrupt, Infinite Roar, Publicis Collective, Publicis Health Media, Spark Foundry, Starcom and Zenith, as we...Read More>>.

Posted: April 22nd, 2026
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Senior ServiceNow Developer & AVP - Platform Innovator

Company IconState Street
Location IconLondon

A global financial services firm in Greater London is seeking an experienced ServiceNow Developer. In this role, you will support and implement ServiceNow solutions, design, and customize applications. Candidates should have a Bachelor's degree, 4+ y...Read More>>.

Posted: April 24th, 2026
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