Backend Software Engineer C# .Net SQL - Hedge Fund

Company IconClient Server
Location IconLondon

Overview In this role you will build and optimize algorithmic trading systems for a London-based hedge fund, collaborating with Quant teams to shape valuation, risk and pricing capabilities. You’ll work on massively scalable, high-perform...Read More>>.

Posted: October 10th, 2026
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Lead Full Stack Engineer TypeScript Python API

Company IconClient Server
Location IconLondon

Overview In this role you will lead the design and execution of data and technology strategies for a private equity portfolio. You’ll work with investors, executives and portfolio companies to identify data opportunities, mature data capa...Read More>>.

Posted: October 10th, 2026
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Senior Backend Engineer

Company IconBrix
Location IconLondon

Join to apply for the Senior Backend Engineer role at BrixJoin to apply for the Senior Backend Engineer role at BrixEEigent AISenior Backend Engineer...Read More>>.

Posted: August 7th, 2026
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Senior II - Back-End Engineer

Company IconPreply
Location IconLondon

Senior II - Back-End Engineer Location London Employment Type Full time Location Type Hybrid Department Engineering We power people’s progress. At Preply...Read More>>.

Posted: August 13th, 2026
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Senior Backend Developer

Company IconWARACLE
Location IconLondon

Waracle are looking for a Senior Developer for an exciting new role joining our world-class digital technology consultancy and home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation....Read More>>.

Posted: September 14th, 2026
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Senior Backend Engineer

Company IconOrbital
Location IconLondon

Orbital is an AI-first industrial company building hardware from the atoms up. Our goal is to lead an industrial renaissance to advance critical technologies and secure our planet for generations to come. We’re starting with critical h...Read More>>.

Posted: September 14th, 2026
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Senior Back-End Developer (.NET)

Company IconREMIUM
Location IconLondon

REMIUM is a financial services company built to serve global businesses and individuals with seamless local and cross-border payment infrastructure. From Family Offices and payroll businesses to SaaS providers and E-commerce operators, our clie...Read More>>.

Posted: September 14th, 2026
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Senior Backend Engineer

Company IconDNEG
Location IconLondon

Brahma AI operates at the intersection of enterprise Media Asset Management (MAM) and cutting-edge generative media. We build and scale industry-leading generative AI models, including hyper-realistic digital humans (ATMAN) and multilingual voi...Read More>>.

Posted: September 14th, 2026
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Senior Backend Engineer

Company IconSeedLegals
Location IconLondon

SeedLegals is the leading provider of automated legal solutions for startups, with offices in London, New York and Paris. Since launching in 2016, we’ve supported over 75,000 startups who have collectively raised more than £2bn on our platfo...Read More>>.

Posted: September 14th, 2026
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Kong API Gateway Specialist

Company IconInfoplus Technologies UK Limited
Location IconLondon

Job SummaryWe are seeking an experienced Kong API Gateway Specialist to lead the development, implementation, and governance of our enterprise API ecosystem. This role will be responsible for establishing API governance standards, desi...Read More>>.

Posted: September 14th, 2026
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Senior Backend Engineer

Company IconPlum
Location IconLondon

Millions of people want to grow their money but don't know where to start. More than 90% of adults don't access traditional financial advice. That's the gap Plum was built to close.We're building the proactive money platform that makes i...Read More>>.

Posted: September 14th, 2026
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Senior Backend Engineer

Company IconMonzo
Location IconLondon

We have around 650 engineers across Monzo who design and build our in‑house banking platform. We have big ambitions for the future, and technology plays a big role in creating a bank our customers want, so engineers at Monzo collaborate acros...Read More>>.

Posted: September 14th, 2026
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Senior Backend Engineer

Company IconSaturn
Location IconLondon

Saturn is a Series A-backed fintech transforming how financial advice is delivered. We operate in one of the world’s largest industries. Wealth and asset managers oversee more than $100 trillion and generate over $1 trillion in annual...Read More>>.

Posted: September 20th, 2026
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Backend Engineer - Azure Cloud & APIs

Company IconOrganox
Location IconOxford

OrganOx is hiring a Backend Developer in Oxford to deliver secure, maintainable cloud services and APIs across OrganOx digital platforms. You will design, develop, test, document, and maintain server-side applications and databases, aligning with...Read More>>.

Posted: September 20th, 2026
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Senior Backend Engineer

Company IconGener8
Location IconLondon

We're looking for an experienced backend engineer, working on the core technology that powers our platform.About usSince its launch in 2018, Gener8 has been at the forefront of the "open data" movement: the belief that people sh...Read More>>.

Posted: September 21st, 2026
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Backend Engineer: Medical Imaging & Health APIs

Company IconV7
Location IconLondon

Your role at V7:Own and maintain backend infrastructure and processes dealing with the input, output, and consumption of both radiological and pathological medical imaging scans.Build out infrastructure for import/export of an...Read More>>.

Posted: September 21st, 2026
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Sr. Backend Engineer

Company IconConfidential
Location IconLondon

About the company the company is the AI-native supplier of industrial materials for energy, infrastructure, and construction in wholesale and beyond. We trade with global suppliers and distribute to European customers on our own...Read More>>.

Posted: September 21st, 2026
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Staff Backend Engineer

Company IconMonzo
Location IconLondon

We have around 650 engineers out of roughly 5,500 people in total - and we have big ambitions. There are many interesting challenges ahead, and we're happy for people to move between teams or to specialise, whatever you prefer. As an engineer h...Read More>>.

Posted: September 21st, 2026
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Senior Backend Engineer

Company IconTranslucent
Location IconLondon

Join to apply for the Senior Backend Engineer role at TranslucentJoin to apply for the Senior Backend Engineer role at TranslucentTranslucent is building the infrast...Read More>>.

Posted: September 21st, 2026
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Staff Backend Engineer

Company IconUncapped
Location IconLondon

Hybrid based in London or Warsaw, or fully remote from Poland with visits to the Warsaw office. Role Overview 🚀 If you're a tech freak with an insatiable curiosity for cutting‑edge technologies, join Uncapped and bec...Read More>>.

Posted: September 21st, 2026
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Staff Backend Engineer

Company IconDepop
Location IconLondon

Job Summary We are looking for a UK based Staff Backend Engineer to be a key technical leader within the teams responsible for Depop’s Payments and Fulfilment systems, ensuring we provide our users with a best‑in‑class payments a...Read More>>.

Posted: September 21st, 2026
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Lead Backend Engineer (Pension Team)

Company IconInvestEngine
Location IconLondon

About InvestEngine InvestEngine is a fast-growing fintech based in London, on a mission to make ETF investing simple and accessible. Over 150,000 clients have trusted us with more than £2,7 billion in assets — and we’re just getti...Read More>>.

Posted: September 21st, 2026
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Senior Backend Engineer

Company IconSynapri
Location IconLondon

Synapri are working with an exciting Software business operating within the Investment Management space looking for an experiencedSenior Backend Engineerto join their growing team on a permanent basis.As the company develop a new suite o...Read More>>.

Posted: September 21st, 2026
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DV-Cleared Security Architect for Air-Gapped Backend

Company IconLA International
Location IconGlasgow

LA International, a global systems integrator, is seeking a DV cleared Security Architect to design, build, and assure backend platform security and endpoint protection in air-gapped environments, Glasgow preferred but site flexibility.You...Read More>>.

Posted: September 22nd, 2026
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Group Product Manager, Partnerships & API

Company IconFlagstone
Location IconLondon

Flagstone is seeking a Group Product Manager to lead the Partnerships tribe, coordinating Introducer, Bank, and API Partnership squads to shape a strategic product roadmap. You’ll align customer needs with business goals, driving growth in refer...Read More>>.

Posted: September 22nd, 2026
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Go Backend Engineer — Fintech Platform & Scalable APIs

Company IconEnfint
Location IconLondon

Enfint ищет опытного разработчика на Go для продолжения разработки платформы Hyperlayer — интеллектуальной банковской платформы. Ваша задача...Read More>>.

Posted: September 23rd, 2026
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EMS Platform Backend Engineer (Rust) – Hybrid London

Company IconElwoodtechnologies
Location IconLondon

Elwood Technologies is seeking a Software Engineer in London (hybrid) to design, build, and optimise a next‑generation EMS platform across multiple regions. You will work on low-latency, high-throughput systems, ensuring correctness and high ava...Read More>>.

Posted: September 25th, 2026
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Senior Backend Engineer

Company IconDrive
Location IconLondon

Who we are:Buying, leasing or renting a vehicle should feel straightforward. Not complicated or hard work.Drive brings everything together in one place, with multiple ways to get on the road.It combines cho...Read More>>.

Posted: September 26th, 2026
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Backend Engineer — TypeScript, AWS, Event-Driven, Scalable

Company IconKaluza Ltd.
Location IconCanon's Marsh

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: September 27th, 2026
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Enterprise API Project Manager - FinTech Integrations

Company IconAlpaca
Location IconLondon

Alpaca is a US-headquartered global leader in brokerage infrastructure, seeking a Project Manager to coordinate enterprise integrations from conception to launch across our brokerage APIs.You will align technical teams, manage timelines, mi...Read More>>.

Posted: October 5th, 2026
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Senior Full Stack Backend Engineer

Company IconKodamai Limited
Location IconGlasgow

Engineering Glasgow / Remote Consultant Contract We are looking for a talented and driven Senior Fullstack Backend Engineer to join our growing engineering team. In this role, you will design and build robust backend API services, integrate...Read More>>.

Posted: October 7th, 2026
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DevOps Engineer – Backend (Lisbon)

Company IconAir Ltd
Location IconBath

Air Apps is seeking a DevOps Engineer Backend to design, automate, and maintain the infrastructure powering our backend systems. You will work closely with developers to deliver scalable, secure, and reliable services in a fast-paced environment....Read More>>.

Posted: October 8th, 2026
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Middle Backend Engineer, Backoffice team (Python)

Company IconInvestEngine Limited
Location IconLondon

About InvestEngineWe’re a London-based fintech on a mission to make ETF investing simple and accessible. Over 150,000 clients have trusted us with over £3 billion in assets — and we’re just getting started. We’ve been feat...Read More>>.

Posted: October 8th, 2026
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Senior Backend Engineer

Company IconErsilia
Location IconLondon

Senior Backend Engineer - London or England remoteLondon, UK · Permanent · Hybrid Join a team small enough that what you build is what exists, and take agentic AI features from a founder's idea to something hundreds of investm...Read More>>.

Posted: October 15th, 2026
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Java Backend Engineer - Fintech, Stock Options

Company IconARQ
Location IconLondon

ARQ is a fast-growing fintech based in London seeking a Backend Engineer to design, develop and maintain scalable systems powering our innovative products. You will collaborate with a talented team to enable financial services that move value acro...Read More>>.

Posted: October 9th, 2026
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Software Engineer II (Backend) - Subscriptions

Company IconDeliveroo
Location IconLondon

Software Engineer II (Backend) - Subscriptions London, United Kingdom - Deliveroo Our Global Structure Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending...Read More>>.

Posted: October 9th, 2026
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Senior Backend Engineer

Company IconCAPSA
Location IconLondon

The AI Operating System for Private Capital.CapsaPrivate capital funds have to find potential investments, research and analyse them thoroughly, monitor them over time, drive improvements, and decide when to buy and sell. They...Read More>>.

Posted: October 10th, 2026
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Backend Engineer II - Platform Security & GRC

Company IconSpotify Los Angeles
Location IconLondon

Spotify is seeking a Backend Engineer II to join our Security Compliance Engineering team in London or Stockholm. You will transform complex security, risk, and compliance requirements into scalable software that helps Spotify engineers build and...Read More>>.

Posted: October 10th, 2026
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Go Backend Engineer — Kubernetes IAM Platform

Company IconNeo4j, Inc.
Location IconLondon

Neo4j is seeking an experienced Backend Software Engineer to join the Identity and Access Management team for AuraDB. You will build, deploy, and manage cloud-native services in Go and develop custom Kubernetes operators, controllers, and resource...Read More>>.

Posted: October 10th, 2026
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Go Backend Engineer - Product Analytics Platform

Company IconNeo4j, Inc.
Location IconLondon

Neo4j is forming a new Product Analytics Platform team for Aura's Analytics API and infrastructure. You’ll own the API design, data contracts, and integration points across Aura, balancing multiple product teams’ needs with long-term maintaina...Read More>>.

Posted: October 10th, 2026
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Lead Backend Engineer, POS Integrations & APIs

Company IconON
Location IconLondon

On is seeking a Lead Backend Engineer to drive the integration of our POS ecosystem with ERP, OMS, CRM, and loyalty engines. You will architect resilient services, design event-driven data flows, and ensure store operations remain fast, reliable....Read More>>.

Posted: October 11th, 2026
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Senior Backend Engineer

Company IconFi
Location IconLondon

About 9fin9fin is the AI platform powering global debt markets — the world’s largest asset class at over $145 trillion. Debt markets are vast, global, and mission-critical, yet still run on fragmented data, PDFs, and manual workflows....Read More>>.

Posted: October 12th, 2026
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Lead Backend Engineer — Java/Spring Platform

Company IconNext Frontier Capital
Location IconLondon

J.P. Morgan Personal Investing is seeking a Lead Software Engineer to join the Backend Engineering Platform. You will design and maintain Spring Boot based frameworks that empower product teams to build scalable financial services.In this h...Read More>>.

Posted: October 14th, 2026
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Macro Quant Analytics Backend Engineer

Company IconPoint72
Location IconLondon

Point72 Asset Management is seeking a senior backend engineer to design, build, and operate high-performance analytics services in C# within a global investment framework. You will work on real-time and historical data pipelines, time-aware data m...Read More>>.

Posted: October 15th, 2026
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Backend Python Developer

Company IconThird Republic Limited
Location IconLondon

We are working with a unique company that helps businesses automate regulatory compliance in the financial industry. The company is at the cusp of the growth where they have registered incredible growth in the last 5 years and looking for a dynami...Read More>>.

Posted: October 17th, 2026
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Production Python Engineer: Back-End, London

Company IconOxford Knight
Location IconLondon

Oxford Knight is seeking pragmatic Python engineers to join its Production Engineering group in the London-based application team. You will build scalable back-end services using Python and Go, with Django/Flask/Dash/React on the front end, and wo...Read More>>.

Posted: October 16th, 2026
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API Integrations Delivery Lead

Company IconOpenExchange, Inc.
Location IconLondon

OpenExchange in the UK/US remote environment is seeking a Senior Technical Integration Lead to own API integrations end-to-end—from pre-sales scoping through implementation and live events. You will translate client requirements into actionable...Read More>>.

Posted: October 16th, 2026
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Realtime Commodities Backend Engineer

Company IconKpler
Location IconMoffat

Kpler is seeking a Backend Engineer to join the founding Connected Supply Chain team. You will build and run core services that extend Kpler’s real-time trade intelligence platform beyond marine coverage into North American inland supply chains....Read More>>.

Posted: October 16th, 2026
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Senior Backend Engineer

Company IconHomeServe EMEA
Location IconLondon

At HomeServe Finance, we’re using technology and consumer finance to help homeowners improve the energy efficiency of their homes. As part of the wider HomeServe Group, we’re developing the products, platforms and lending technology that will...Read More>>.

Posted: October 16th, 2026
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Senior Software Developer - Back End

Company IconXe.com
Location IconBracknell

Description Xe is a cross-border payments platform. We help SMEs and consumers in the US, UK, Canada, Australia, and New Zealand collect, convert, hold, and send money across markets. Each year, over 300 million people use Xe for currency...Read More>>.

Posted: October 18th, 2026
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