Principal Software Engineer
1 week ago
Principal Software Engineer (Java)London – 1 day a week onsite🚀 Join a FinTech Powering the Future of PaymentsAre you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your opportunity to help shape the core technology that powers instant payments for some of the world’s largest Banks.We’re hiring on behalf of a leading payments consultancy, delivering cutting-edge solutions that integrate seamlessly with bank infrastructure to enable real-time, secure transactions across the globe.🔍 What You’ll Be DoingYou’ll be the focal point of a high-performing engineering team building asynchronous, event-driven systems using modern Java technologies.Design and build scalable, high-availability systems processing millions of real-time transactionsWork with Java 17+, Spring WebFlux, AKKA, Kafka, and moreWrite clean, testable code using TDD and BDDContribute to architectural decisions in a fast-evolving codebaseCollaborate within Agile teams (Kanban/Scrum)🧠 What You BringWe’re looking for engineers who are pragmatic, performance-focused, and thrive on solving complex distributed systems problems.Strong hands-on experience with Java 11+ (ideally Java 17)Solid knowledge of Reactive Programming (e.g., Spring WebFlux, AKKA)Experience with event-driven architecture, real-time messaging systems (Kafka, JMS)Familiarity with asynchronous request handling, scalability, and system resilienceAgile mindset, with TDD/BDD and CI/CD experienceBonus: Background in Banking/Payments is helpful but not required – if you’ve built high-performance, real-time systems, we want to talk to you.🎁 What’s In It for You💰 £100,000 – £115,000 base salary (DOE)🎯 20% bonus🧠 Work with cutting-edge tech on globally impactful systems🏡 Hybrid working – 1 day a week (or more if you’d like)🌍 Opportunity to collaborate with major global banks🚀 Fast-paced, product-led environment where your voice mattersIf you're a motivated Senior/Principal/Staff Java Software Engineer ready to tackle complex challenges and deliver meaningful change, hit apply – and shape the future of payments with us.
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Principal Software Engineer
2 weeks ago
London, United Kingdom Software Development & Engineering Full time🔥 Principal Software Engineer - Lead the Future of UK GovTech Innovation💰 Up to £100,000 + Premium Benefits Package 🏡 Remote-First | Just 1 Day Onsite Every 2 Weeks 🔐 SC Clearable | British Citizens Only 🚀 Where Technology Meets Purpose Are you ready to lead engineering efforts that directly impact national security, public services, and...
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Principal Software Engineer
1 week ago
London Area, United Kingdom Fynity Full timePrincipal Software Engineer (Java) London – 1 day a week onsite
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Principal Software Engineer
2 weeks ago
London Area, United Kingdom Orbis Group Full time £170,000 - £215,000 per yearPrincipal Software Engineer (Golang | Distributed Systems)London – On-siteUp to £170,000 base + 25% bonus + excellent benefitsPermanentI'm partnered with ahigh-growth technology companybuilding a world-class data and services platform that processestens of billions of monthly requests— powering real-time insights for millions of users globally.They're...
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Principal Software Engineer
4 days ago
London Area, United Kingdom Atarus Full time £100,000 - £120,000 per yearPrincipal Software Engineer – AI Infrastructure Platform (London, Hybrid)A fast-growing AI infrastructure company is hiring aPrincipal Software Engineerto help build and scale their cloud platform used by ML teams worldwide. If you enjoy working across the stack but love the backend — especiallyGolang— this is a standout opportunity.You'll work on...
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Principal Software Engineer
2 weeks ago
London Area, United Kingdom Sainsbury's Full time £80,000 - £120,000 per yearWhy join usJoining Sainsbury's Tech means becoming part of an organisation that powers the UK's leading multi-channel, multi-brand retailer. As a Principal Engineer in the Digital&Payments area, you will play a pivotal role in driving innovation and engineering excellence within our dynamic and inclusive environment. You'll have the opportunity to work...
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Principal Software Engineer
2 days ago
London Area, United Kingdom Fynity Full timePrincipal Software Engineer (Java)London – 1 day a week onsite🚀 Join a FinTech Powering the Future of PaymentsAre you a seasoned individual contributor looking for a step up into a senior position within a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your opportunity to...
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Principal Software Engineer
2 days ago
London Area, United Kingdom Global M Full timeWe are seeking an experienced Principal Software Engineer with a strong background in backend and cloud-based development, who has also taken on technical leadership responsibilities. This role involves leading the design and development of scalable systems, mentoring engineers, and ensuring high standards of architecture and code quality across...
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Principal Software Engineer
2 days ago
London Area, United Kingdom Global M Full timeWe are seeking an experienced Principal Software Engineer with a strong background in backend and cloud-based development, who has also taken on technical leadership responsibilities. This role involves leading the design and development of scalable systems, mentoring engineers, and ensuring high standards of architecture and code quality across projects....
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Principal / Lead Engineer - Full Stack
1 week ago
London Area, United Kingdom Sahaj Software Full time £120,000 - £140,000 per yearAs a Principal / Lead Full-Stack Engineer, you'll thrive if you're hands-on, grounded, and passionate about building with technology. This role is ideal for those looking to have a large impact and huge scope for growth, while still being hands on with technology.We aim to allow growth without becoming "post-technical".Our clients diverse tech stack includes...
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Principal Software Engineer
7 days ago
London Area, United Kingdom ivee | The job platform for everyone else Full timePlease note:Thanks for your interest in this role –just to be clear, this is not a job working at ivee.This is a live role with a client, listed through ivee.ivee is exclusively for people restarting, pivoting, or returning to work within the UK. Please do not apply if you are outside the UK.Have you taken a career break or are you looking to pivot into...
