Scala / Java Developer Fintech / Blockchain Cryptocurrency

Company IconQuant Capital
Location IconLondon

Overview In this role you will design, develop and deploy high-quality software for a greenfield fintech project focused on cryptographic technology and distributed protocols. You will work with cross-functional teams to prototype architect...Read More>>.

Posted: September 30th, 2026
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Full Stack Java Developer – Fintech

Company IconQuant Capital
Location IconLondon

Overview In this role you will build and deliver front-end and back-end solutions for a tech-driven trading platform. You will work closely with cross-functional teams to shape product offerings and impact business outcomes. The environment...Read More>>.

Posted: September 30th, 2026
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Core Java Developer-Contract – Trading

Company IconQuant Capital
Location IconLondon

Overview In this contract role, you will apply your Core Java expertise to a fast-paced trading tech platform, enabling high-scale, data-driven financial services. You’ll work within an agile, test-driven environment to design and impleme...Read More>>.

Posted: October 1st, 2026
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Mid-Level Java Developer

Company IconHalliburton
Location Icon

Overview In this role you will design, develop, and maintain subsurface evaluation solutions for the energy sector as part of the Neftex Technical Services Team. You will contribute to building reliable Java-based desktop and web applicatio...Read More>>.

Posted: October 1st, 2026
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Core Java Developer – Quant Trading

Company IconQuant Capital
Location IconLondon

Overview In this role you will build and evolve a high-impact Java platform for a fast-moving trading technology firm. You will work with cross-functional teams to design and implement business features that shape the product’s future. Th...Read More>>.

Posted: October 1st, 2026
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Core Java Developer Trading Technology

Company IconQuant Capital
Location IconLondon

Overview As a Senior Core Java Developer in a fast-paced post-trade tech environment, you will help shape the architecture and deliver integration solutions for a global trading business. You will design, prototype, and evaluate tools to su...Read More>>.

Posted: October 1st, 2026
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Junior Java Developer –Python, Ruby, Fintech50

Company IconQuant Capital
Location IconLondon

Overview As a Junior Java Developer at Quant Capital, you join a fintech-focused tech team working with a high-profile client. You’ll contribute across the stack, emphasize core Java development, and support release management and infrast...Read More>>.

Posted: October 1st, 2026
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Equities Technology (Java Developer) - VP

Company IconCitigroup
Location IconBelfast

Overview In this role you will advance Citi’s Global Market Data platform for the global equities business, focusing on low-latency data delivery and system enhancements. You will collaborate with cross-functional teams including producti...Read More>>.

Posted: October 1st, 2026
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SC Cleared Java Developer

Company Iconfortice
Location IconBristol

Overview In this role you will design, develop and deliver multi-tier applications for Public Sector and National Security projects. You will contribute across client and server sides, aligning with agile practices and enterprise-scale arch...Read More>>.

Posted: October 1st, 2026
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Java Developer Algo Trading 140k

Company IconQuant Capital
Location IconLondon

Overview In this role you will help build a brand-new, low-latency trading platform within a cross-asset team. You’ll work closely with the Head of Trading and the Quant Team to design and implement trading algorithms in Java, while also...Read More>>.

Posted: October 1st, 2026
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Java Developer – Equity derivatives- Hedge Fund

Company IconQuant Capital
Location IconLondon

Overview In this role you will help build and enhance the distributed pricing platform for Equity Derivatives, enabling continuous, firm-wide risk and P&L. You join a global, cross-functional team of developers and quants, contributing to g...Read More>>.

Posted: October 1st, 2026
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Senior Java Developer - London - Fintech

Company IconAdaptive Financial Consulting
Location IconLondon

Overview In this role you will design and develop Java-based trading software for Adaptive’s front-office technology platform. You will work within cross-functional teams to deliver high-performance solutions that underpin capital markets...Read More>>.

Posted: October 1st, 2026
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Java Developer – Algo Development Technology (Equities)

Company IconMillennium Management
Location IconLondon

Overview In this role you will build and evolve real-time, high-performance algorithmic trading systems for equities. You’ll collaborate with technologists and trading teams to enhance execution capabilities that support portfolio manager...Read More>>.

Posted: October 1st, 2026
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Contract Senior Java Developer – Data

Company IconQuant Capital
Location IconLondon

Overview In this contract role you will build and enhance Java backend services that power the data platform, while owning lighter Python ETL tasks to feed PostgreSQL data stores. You will work closely with a lean team to improve reliabilit...Read More>>.

Posted: October 1st, 2026
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JAVA DEVELOPER -High Growth Scale Up!

Company IconRobert Half
Location IconLondon

Overview In this role you will design, develop and optimize high-performance Java applications within a fast-growing financial services tech environment. You will work with the JVM to improve performance, scalability, and reliability across...Read More>>.

Posted: October 2nd, 2026
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Senior Java Developer Spring Boot TDD

Company IconClient Server
Location IconManchester

Overview As a Senior Java Developer, you will lead a small, high-performing backend team while delivering hands-on architecture and coding. You’ll work in a real-time sports betting domain, collaborating closely with Product Owners to ens...Read More>>.

Posted: October 3rd, 2026
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Software Engineer

Company IconFundApps
Location IconLondon

Overview In this role you will contribute to a fast-growing engineering team, building and improving software that monitors trillions in assets daily. You will own your work from day one, collaborating with product and engineering to delive...Read More>>.

Posted: October 8th, 2026
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Software Engineer

Company IconLeidos
Location IconBristol

Overview In this role you will design and build mission-critical software for embedded platforms, working closely with end-users on-site. You will apply low-level hardware interfacing, develop in Python and C++, and contribute to cross-func...Read More>>.

Posted: October 8th, 2026
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Principal Software Engineer

Company IconEasyjet
Location IconLondon

Overview As Principal Software Engineer in the eCommerce Platform Delivery team, you lead and shape technical strategy across multiple squads to deliver robust, secure, and scalable systems. You guide architecture and engineering standards,...Read More>>.

Posted: October 10th, 2026
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Senior Software Engineer C++

Company IconUnderstanding Recruitment
Location IconLondon

Overview In this role you will own and evolve core production software in C++, helping a research-driven AI startup scale to customer deployments. You will shape the platform architecture, coordinating across the computational engine, Pytho...Read More>>.

Posted: October 10th, 2026
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Research Software Engineer

Company IconSt George’s University of London
Location IconLondon

Overview In this role you will join the Engineering Department to help build a web-based Data Repository for HS2, enabling collection, management and sharing of monitoring data. You will contribute to a high-profile infrastructure project w...Read More>>.

Posted: October 10th, 2026
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Python Software Engineer Conversational AI

Company IconClient Server
Location IconLondon

Overview In this remote-first role, you build and own production-grade AI systems and the infrastructure behind a conversational AI platform. You’ll design scalable backend services and integrate LLMs with third-party tools to deliver rel...Read More>>.

Posted: October 10th, 2026
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Senior Software Engineer

Company IconBAE Systems
Location IconFilton

Overview In this role you will develop mission-critical software for the Eurofighter Typhoon, collaborating with systems and test engineers to deliver high-performance, safety-critical aerospace software across the full lifecycle. You’ll...Read More>>.

Posted: October 10th, 2026
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Low Latency Rust Software Engineer

Company IconCitigroup
Location IconLondon

Overview As a senior architect and developer in Citi’s High Performance Architectures team, you will build and evolve low-latency trading and market data systems. You’ll work hands-on on the Rust/Java codebase to deliver fast, reliable...Read More>>.

Posted: October 10th, 2026
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Principal Software Engineer (Java)

Company IconAnaplan
Location IconYork

Overview In this Engineer IV role, you will design and deliver platform capabilities powering Anaplan’s enterprise-scale APIs, edge routing, and developer acceleration. You will build high-throughput backend engines, drive multi-tenant is...Read More>>.

Posted: October 10th, 2026
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Senior Software Engineer

Company IconASOS
Location IconLondon

Overview In this Senior Software Engineer role within ASOS FinOps in London, you will own and evolve the platform that makes cloud costs visible, attributable and actionable. You will build data products and tooling to help engineering team...Read More>>.

Posted: October 10th, 2026
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Platform Software Engineer

Company IconG Research
Location IconLondon

Overview As a Platform Software Engineer in the Storage Engineering team, you will help turn manual infrastructure into self-service storage products that power G-Research’s research platform. You’ll build services and APIs, automate wo...Read More>>.

Posted: October 10th, 2026
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Software Engineer II

Company IconAmerican Express
Location IconBurgess Hill

Overview As a member of the Digital Payments Engineering team, you will shape mobile payment experiences for tens of millions of cardholders. You’ll craft secure, scalable payment apps and interact with product managers to define directio...Read More>>.

Posted: October 10th, 2026
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Software Engineer III

Company IconPearson
Location IconRotherham

Overview In this role you will develop and maintain .NET backend services and React UIs for assessment platforms, leveraging cloud-native solutions. You will work with cross-functional teams to translate business needs into technical design...Read More>>.

Posted: October 10th, 2026
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Senior Golang Software Engineer

Company IconInfoSum
Location IconLondon

Overview As a Senior Backend Engineer, you will design and maintain scalable, high-performance backend systems that power InfoSum’s data collaboration platform. You’ll collaborate with frontend, product, and DevOps teams to deliver robu...Read More>>.

Posted: October 10th, 2026
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Associate Principal Embedded Software Engineer

Company IconDyson
Location IconMalmesbury

Overview In this role you will lead embedded software for Dyson’s power electronics systems, shaping motor drives, power conversion and battery management in a multidisciplinary lab setting. You will prototype, evaluate and optimize softw...Read More>>.

Posted: October 10th, 2026
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Senior Software Engineer, Code Search

Company IconGitHub
Location Icon

Overview As a Senior Software Engineer on Blackbird, you will help build and operate the core code search infrastructure at scale. You’ll work within the Copilot Agents organization to improve reliability, automation, and security across...Read More>>.

Posted: October 10th, 2026
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Principal Cloud Software Engineer

Company IconAveva Group
Location IconCambridge

Overview In this role, you lead the design and delivery of AVEVA CONNECT Core Services on Microsoft Azure, shaping secure, scalable cloud platform capabilities. You will partner with architects, product teams and engineers to translate tech...Read More>>.

Posted: October 10th, 2026
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AI Software Engineer - Investments Technology

Company IconNeuberger Berman
Location IconLondon

Overview In this role you will design, develop, and deploy AI-powered capabilities that drive business impact within Neuberger’s Fixed Income Technology team. You’ll collaborate with business users, engineering, and data teams to delive...Read More>>.

Posted: October 10th, 2026
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Senior Embedded Software Engineer

Company IconIntellectual Capital Resources
Location IconBristol

Overview In this role, you will design and develop embedded software for a portfolio of products within a global safety and security-focused company. You will work with industry experts to deliver high‑quality, reliable software on ARM pl...Read More>>.

Posted: October 10th, 2026
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Software Engineer, Test & Build Engineering

Company IconCboe Exchange
Location IconLondon

Overview In this hybrid role, you’ll ensure the quality and reliability of Cboe Europe’s trading infrastructure through automated testing while leading build and release improvements. You’ll work with cross‑functional teams across t...Read More>>.

Posted: October 10th, 2026
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Principal Embedded Software Engineer

Company IconIntellectual Capital Resources
Location IconBristol

Overview As a Principal Embedded Software Engineer in Bristol, you will lead architecture, design, and implementation of safety‑critical embedded software. You’ll mentor junior engineers and drive high-quality, compliant software in pro...Read More>>.

Posted: October 10th, 2026
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Principal Software Engineer (Backend & Platform)

Company IconIntellectual Capital Resources
Location IconBristol

Overview In this role you lead the design, architecture and development of an internal developer platform used by multiple engineering teams. You own tooling, infrastructure and workflows, building a platform from the ground up and guiding...Read More>>.

Posted: October 10th, 2026
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Embedded Software Engineer – Consultant

Company IconIntellectual Capital Resources
Location IconCambridgeshire

Overview In this role you will guide the design and delivery of embedded software-enabled systems, working across software, electronics, systems, and mechanical engineering. You’ll help shape architectures, mentor teams, and solve integra...Read More>>.

Posted: October 10th, 2026
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Staff Software Engineer - International Pricing

Company IconMarks & Spencer
Location Icon

Overview In this role you will design, build and scale backend systems that support M&S’s international pricing across stores and online markets. You’ll work with cross-functional teams to deliver robust, secure solutions and champion e...Read More>>.

Posted: October 10th, 2026
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Senior GPU Software Engineer

Company IconIntellectual Capital Resources
Location IconLondon

Overview In this role you design, optimize, and scale high-performance GPU software to maximize hardware utilization. You will work closely with hardware-focused teams to tackle performance and scalability challenges on modern GPU platforms...Read More>>.

Posted: October 10th, 2026
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Staff Software Engineer, Traffic Team

Company IconGitHub
Location Icon

Overview As a Staff Software Engineer on GitHub’s Traffic Team, you will help maintain and evolve the load-balancing and traffic-management platform that underpins global-scale software delivery. You’ll work with a distributed, remote-f...Read More>>.

Posted: October 11th, 2026
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Java Software Engineer - Finance and Accounting

Company IconStarling Bank
Location IconLondon

Overview In this role you will help build and support Starling’s core financial systems, including bank ledgers and their integrations. You’ll work within the Finance Engineering team to ensure transactions are recorded accurately and p...Read More>>.

Posted: October 11th, 2026
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Lead Software Engineer, Team Lead

Company IconMarsh & McLennan Companies
Location IconLondon

Overview In this role you will lead the UK CAT team, delivering analytics and technology products for Mercer. You’ll own technical direction across a distributed London–India engineering setup, partnering with risk advisory stakeholders...Read More>>.

Posted: October 11th, 2026
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Senior Software Engineer C# .Net

Company IconClient Server
Location IconNewcastle upon Tyne

Overview In this role you will design and deliver backend services in C#/.Net for a fintech platform serving the global investment management industry. You will influence architecture and product direction as part of a high-calibre engineer...Read More>>.

Posted: October 11th, 2026
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