Backend Engineer, Capital Markets SaaS

Company IconEC1 Partners
Location IconLondon

EC1 Partners is building backend services for a capital markets SaaS platform used by financial institutions to manage trading, post-trade, and operational workflows. You will work on scalable, production-grade systems at the core of institutional...Read More>>.

Posted: October 21st, 2026
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Senior Backend Engineer – Global Payments Platform

Company IconRAMP
Location IconLondon

Ramp is hiring for a Senior Backend/Platform Engineer on the Money Platform, International team. You will build cross-border payment infrastructure and multi-currency accounting, enabling Ramp's expansion into global markets.You will own en...Read More>>.

Posted: October 21st, 2026
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Hybrid C# .NET Backend Developer (Junior-Mid)

Company IconProactive Appointments
Location IconTaunton

Proactive Appointments in Taunton is hiring a Junior to Mid-Level Back-End C# .NET Developer on a permanent basis. The role offers hybrid working (2-3 days on-site per week) and up to £45,000 per year.You will join an established team, dev...Read More>>.

Posted: October 21st, 2026
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Senior Backend Engineer, Maritime Real-Time Data

Company IconLever, Inc.
Location IconScotland

Kpler is seeking a Senior Backend Engineer to lead backend architecture and streaming services for maritime data. You will design scalable, high-availability systems using Python, PHP, Kafka, PostgreSQL, and ClickHouse to deliver real-time insight...Read More>>.

Posted: October 21st, 2026
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Senior Backend Engineer for Scalable iGaming Platforms

Company IconPraxis Tech
Location IconManchester

5 Star iGaming Media in Manchester is seeking a Senior Backend Developer to design and implement robust, scalable backend systems that power our iGaming products and services. You will collaborate with product and front-end engineers to deliver re...Read More>>.

Posted: October 21st, 2026
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Remote Backend Engineer – Data Centre Platform

Company IconTGS International Group
Location IconLondon

TGS International Group is seeking a Back end Software Developer specializing in Python for remote work. This role involves the development and maintenance of high-performance backend services and supporting infrastructure.Key responsibilit...Read More>>.

Posted: October 21st, 2026
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Backend Engineer (Rust) – Fintech Infrastructure

Company IconDormont Manufacturing Co
Location IconLondon

Dormont Manufacturing Co is looking for a Software Engineer in London to contribute to building a robust backend infrastructure for financial systems. You will work closely with a small team to design, implement, and optimize backend services that...Read More>>.

Posted: October 21st, 2026
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Senior Go Engineer: Build Reliable, Production-Ready Backend

Company IconGrid Dynamics
Location IconLondon

Grid Dynamics in London is seeking an experienced Senior Golang Developer to join a high-performing engineering team. This hands-on role focuses on designing, building, testing and delivering production-quality software with ownership across the f...Read More>>.

Posted: October 21st, 2026
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Software Engineer: Kotlin, Android & Secure Backend

Company IconSecurity Wizardry Radar Page
Location IconCheltenham

Security Wizardry Radar Page is looking for a Software Engineer in Cheltenham, UK to help design, build, and deliver secure digital solutions. Candidates must have strong Kotlin experience and be skilled in developing reliable Android applications...Read More>>.

Posted: October 21st, 2026
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Senior Backend Engineer for Lending Platforms | Hybrid London

Company IconHomeServe
Location IconLondon

HomeServe Finance is seeking a Senior Software Engineer - Backend in London. You will design, build and operate scalable backend services powering the lending lifecycle, from applications through to loan servicing and collections.You will c...Read More>>.

Posted: October 21st, 2026
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Backend Engineer — TypeScript, AWS, Event-Driven, Scalable

Company IconKaluza Ltd.
Location IconBristol

Kaluza Ltd. is hiring a senior backend engineer to design, build and maintain scalable services using TypeScript. You will work with event-driven architectures, queues and cloud infrastructure (AWS) to power real-time features and services....Read More>>.

Posted: October 21st, 2026
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Senior Backend Engineer – Property Platform (Hybrid)

Company IconScroll Home
Location IconLondon

Scroll Home, a London-based video-first property discovery app, is seeking a Senior/Staff Backend Developer to join a hybrid team in London. You will own core backend APIs, scale data pipelines, and lead architecture for feeds, real-time workflows...Read More>>.

Posted: October 21st, 2026
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Software Engineer (Backend) - Agent Select New London, UK

Company IconRightmove
Location IconLondon

London, UK Our vision is to give everyone the belief they can make their move. We aim to make moving simpler,by giving everyone the best place to turn to and return to for access to the tools, expertise, trust, and belief to make it happen....Read More>>.

Posted: October 21st, 2026
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Senior Backend Engineer - Scalable, Product-Focused

Company IconFruition Group
Location IconLondon

Fruition Group is seeking a Senior Backend Developer to join their fast-growing technology business in London. This role emphasizes building reliable backend systems and offers a collaborative environment with significant autonomy.The ideal...Read More>>.

Posted: October 21st, 2026
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Founding Backend Engineer — Scalable Health Tech Engines

Company IconJack & Jill
Location IconLondon

Penelope Health Inc. in London is seeking the founding engineer to build the core engine that converts complex payer policies into deterministic computable contracts.You will architect high-throughput ingestion systems and low-latency APIs,...Read More>>.

Posted: October 21st, 2026
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Backend Engineer - Lending Platform & APIs (Cloud)

Company IconEC1 Partners
Location IconLondon

EC1 Partners is seeking a backend engineer to build lending platforms involved in credit decisioning, origination, and servicing. You will own core services and APIs, working closely with product teams to deliver reliable, scalable solutions....Read More>>.

Posted: October 21st, 2026
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Senior Backend Engineer - TypeScript & AWS

Company Iconmyenergi
Location IconGrimsby

myenergi is seeking a cloud-focused software engineer to help develop cutting-edge services powering millions of devices globally. You will design, implement, monitor and support AWS-based backend systems, working as part of a distributed multinat...Read More>>.

Posted: October 21st, 2026
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Senior/Lead Backend Engineer

Company IconFuse Energy
Location IconLondon

Fuse is an AI-first energy company on a mission to make energy abundant and affordable, fast. We combine first-principles thinking with cutting-edge technology to build a radically better energy system. We've raised over $200M from top-t...Read More>>.

Posted: October 21st, 2026
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Backend Engineer for Scalable EV Charging Platform

Company IconOctopus Energy Group
Location IconLondon

Octopus Energy Group is hiring a backend engineer for a key squad. You'll work with product managers and engineers to build robust services powering our public EV charging platform, focusing on scalable, observable systems.You should have 2...Read More>>.

Posted: October 21st, 2026
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Senior Python Backend Engineer – Greenfield Fintech

Company IconHarrington Starr
Location IconLondon

Harrington Starr is seeking a skilled Python backend engineer to join a small, highly collaborative team in fintech. You will design, build and maintain scalable backend apps and REST APIs, taking features from concept to production.You wil...Read More>>.

Posted: October 21st, 2026
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Global Integrations Architect & API Lead

Company IconAutomatic Data Processing, Inc.
Location IconStaines upon Thames

WorkForce Software is seeking an Integrations Architect to lead the design, governance and delivery of integration solutions for WorkForce Suite implementations. You will define integration architectures, provide technical leadership and ensure sc...Read More>>.

Posted: October 21st, 2026
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Backend & DevOps Engineer for Live Music Infra

Company IconSetmixer Ltd.
Location IconLondon

Setmixer Ltd. is building cloud-native backends and IoT-enabled recorders to power live music experiences. We value independent work in small, agile teams, shipping reliable services with studio-quality multitrack recording capabilities.The...Read More>>.

Posted: October 21st, 2026
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Remote Backend Engineer - Rapid Response & Reliability

Company IconVulnCheck Inc.
Location IconCheltenham

VulnCheck seeks a Software Engineer for Rapid Response Assignment (UK). This hands-on role focuses on diagnosing and fixing complex issues across our platform, delivering improvements aligned with customer needs, and working with Customer Success...Read More>>.

Posted: October 21st, 2026
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Backend Software Developer

Company IconcThings Limited
Location IconCambridge

About the roleWe are seeking a mid-level software developer to help develop advanced IoT devices and systems, tackle a variety of software challenges, lead product prototyping, and collaborate with teams across the company to ensure we...Read More>>.

Posted: October 21st, 2026
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Backend Engineer - Java & Spring Boot | Fintech with Stock Options

Company IconDolarApp
Location IconLondon

ARQ is a fast-growing fintech redefining how people move money across borders. We seek a Backend Engineer to design, develop, and maintain scalable, secure backend systems powering our innovative products.You will work on greenfield develop...Read More>>.

Posted: October 21st, 2026
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Backend Engineer – Scale Investment Platform (Hybrid UK/EU)

Company IconFreetrade
Location IconLondon

Freetrade is hiring a Backend Software Engineer to join the Backend Engineering squad in a hybrid model with offices in London and Budapest. You will develop high-quality Node.js/TypeScript software for a scalable trading platform and work closely...Read More>>.

Posted: October 21st, 2026
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Senior Backend Engineer — Scalable Data & APIs

Company IconLa Fosse
Location IconLondon

La Fosse is recruiting for a backend/data-heavy engineer to join a world-leading sports technology platform. You’ll design APIs and distributed systems powering data pipelines at scale, connecting player identities and game metadata across a glo...Read More>>.

Posted: October 21st, 2026
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Senior Backend Engineer - Customer Operations Platform

Company Iconiwoca
Location IconLondon

Senior Software Engineer - Customer Operations Platform Hybrid in London, UK(1-2 days per week) We’re looking for a Senior Software Engineer iwoca’s operational tools and processes are a competitive advantage...Read More>>.

Posted: October 21st, 2026
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Senior Backend Engineer- Kotlin

Company IconMarks and Spencer
Location IconLondon

This position is hybrid with 1 day/week in our Paddington, London office. 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 thou...Read More>>.

Posted: October 21st, 2026
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Senior Network Automation Engineer — Lead Backend & APIs

Company IconMegaport
Location IconLondon

Megaport, a leader in Network as a Service, is looking for a Senior Engineer to join their team in Greater London. The role involves enhancing Perl codebases and creating secure APIs while supporting junior engineers. With over 5 years of developm...Read More>>.

Posted: October 21st, 2026
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Senior API Lead | Up to £110,000

Company IconThe Kennedy Group
Location IconLondon

Get AI-powered advice on this job and more exclusive features.This range is provided by The Kennedy Group. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.Base pay range...Read More>>.

Posted: October 21st, 2026
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Solutions Engineering Lead, Platform & API Partnerships

Company IconWise
Location IconLondon

Wise is seeking a Solutions Engineering Lead in London to drive post-sales technical consulting and govern the Wise Platform partnership program.You will lead a high-performing delivery team, design scalable microservice solutions, and ment...Read More>>.

Posted: October 21st, 2026
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Senior QA Inspector - RBI & API Vessels

Company IconVenture Global LNG
Location IconCameron

Venture Global LNG is seeking a Senior Inspector, Quality Assurance to lead field inspections and integrity management in Cameron. The role focuses on API 510/570/653 inspections, fitness-for-service evaluations, and regulatory compliance to ensur...Read More>>.

Posted: October 21st, 2026
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Senior API & Integration Product Manager

Company IconFormula.
Location IconLondon

Formula. in London is seeking a Senior Technical Product Manager for Salesforce to own the API and integration strategy across core systems. The role sits at the intersection of Product, Engineering and Architecture, delivering APIs and integratio...Read More>>.

Posted: October 21st, 2026
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Catalogue Product Manager: Agile Data & API Focus (Hybrid)

Company IconKlipboard
Location IconHungerford

Klipboard is seeking a Product Manager to lead Catalogue Solutions, partnering with engineering, design and business teams to craft products that delight customers. You will own the product strategy and manage the full lifecycle from ideation to d...Read More>>.

Posted: October 21st, 2026
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Senior Process Development Engineer (Backend)

Company IconLumentum Operations LLC
Location IconTowcester

It’s fun to work in a company where people truly BELIEVE in what they’re doing! We’re committed to bringing passion and customer focus to the business. If you like wild growth and working with happy, enthusiastic over-achievers, you’ll enj...Read More>>.

Posted: October 21st, 2026
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Technical Business Analyst — IT, Data & API Integrations

Company IconHotel Chocolat
Location IconRoyston

Hotel Chocolat is seeking a Technical Business Analyst to join our IT team in Royston. You will bridge business goals with technical delivery across manufacturing, supply chain, retail stores and online channels.Based at Mint House in Royst...Read More>>.

Posted: October 21st, 2026
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Enterprise API Payments Sales Executive - Greek Market

Company IconRevolut
Location Icon

Revolut is seeking an API Product Sales Executive to help drive adoption of our payments-as-a-service offerings with enterprise clients. You will be responsible for building a network of customers, managing sales forecasts, and establishing truste...Read More>>.

Posted: October 21st, 2026
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Platform/API Product Manager – Open Banking & Enterprise

Company IconYapily
Location IconLondon

Yapily is seeking a highly experienced Product Manager to own the core platform services (identity, access, API gateway) and related data products. You’ll set strategy, define standards, and own contracts that other teams rely on, while partneri...Read More>>.

Posted: October 21st, 2026
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Senior Backend Process Engineer – Laser & NPI

Company IconPragmatIC Semiconductor
Location IconNorth East

Pragmatic Semiconductor in Durham seeks a Senior Process Development Engineer to lead backend assembly process development and qualification for high-volume manufacturing. You will drive NPI readiness and transfer processes from development to pro...Read More>>.

Posted: October 21st, 2026
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Remote Senior Magento Backend Engineer

Company IconJh
Location IconScotland

Jobs247 is seeking a Backend Developer to lead the setup of new Magento projects, including environment deployment and version control, delivering robust, scalable code aligned with client goals.You will work with Magento 2, PHP 8+ and Grap...Read More>>.

Posted: October 21st, 2026
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Backend Java Engineer — Spring Boot & APIs

Company IconCreateFuture
Location IconLeeds

CreateFuture is an AI-native consulting partner, empowering people to do work that matters. We’re hiring a Mid Software Engineer (Java) to join client teams, building backend services with Java and Spring Boot, and growing through mentorship in...Read More>>.

Posted: October 21st, 2026
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Kotlin Backend Engineer - Hybrid, Contract to 2027

Company IconExperis
Location IconSheffield

Experis - ManpowerGroup is recruiting a Kotlin Developer for a contract role in Sheffield. The position is hybrid, 2-3 days onsite per week, with a daily rate up to £450.80 inside IR35.You will work on Kotlin and Java-based web application...Read More>>.

Posted: October 21st, 2026
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Software Engineer - Backend

Company IconLloyds Banking Group
Location Icon

End DateTuesday 13 October 2026Salary Range£63,152 - £94,728We support flexible working – click here for more information on flexible working optionsFlexible Working OptionsHybrid Working, Job...Read More>>.

Posted: October 21st, 2026
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Documentation Lead: Docs-as-Code & API Guide Architect

Company IconArtificial Labs
Location IconHarrow

Artificial is shaping the future of specialty insurance technology. We seek a senior technical writer to lead the client-facing product documentation, internal docs, and API reference guides.You will own the documentation strategy, set edit...Read More>>.

Posted: October 21st, 2026
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Backend Engineer - Java, Spring, AWS (Onsite in Manchester)

Company IconRandstad Technologies
Location IconLancashire

Randstad Technologies in the United Kingdom is seeking a Software Engineer to join our team in Manchester, with two days a week onsite. The 6-month contract role focuses on building a massive backend system using cloud technologies and end-to-end...Read More>>.

Posted: October 21st, 2026
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API‑Focused Technical Support Engineer

Company IconStripe
Location IconLondon

Stripe, a global payments platform, is seeking a Technical Support Engineer to provide world-class support to customers, work with Metronome and Stripe engineers, and help optimize customer integrations. You will diagnose issues, build internal to...Read More>>.

Posted: October 21st, 2026
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Front End / Back End Web Developer

Company IconJam Management
Location IconEast Hagbourne

Front End / Back End Web Developer – South East England , Berkshire. £65-75k Main purpose of the role: Frontend Developers work in highly motivated teams, committed to delivering valuable applications and services to customers....Read More>>.

Posted: October 21st, 2026
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Senior Backend Engineer – Fintech Lending Platform

Company IconHomeServe EMEA
Location IconLondon

HomeServe Finance is seeking a Senior Software Engineer - Backend in London to design, build and own scalable backend services powering the lending lifecycle. You will contribute to architecture and integrate with payments, credit bureaus and KYC/...Read More>>.

Posted: October 21st, 2026
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Mid Level Backend Engineer (Node.js)

Company IconEmma - we are hiring!
Location Icon

About The CompanyEmma is the app to manage all things money.Our mission is to empower millions of people to live a better and more fulfilling financial life.Emma was founded by engineers, who are extremely focused on coding,...Read More>>.

Posted: October 21st, 2026
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