Principal Software Engineer Jobs in London

About the AI Security InstituteThe AI Security Institute is the worlds largest and best-funded team dedicated to understanding advanced AI risks and translating that knowledge into action. Were in the heart of the UK government with direct lines to No. 10 (the Prime Ministers office) and we work wit...

Company DescriptionDepop is the community-powered circular fashion marketplace where anyone can buy sell and discover desirable secondhand fashion. With a community of over 35 million users Depop is on a mission to make fashion circular redefining fashion consumption. Founded in 2011 the company is...

This is a job that we are recruiting for on behalf of one of our customers.To apply speak to Jack. Hes an AI agent that sends you unmissable jobs and then helps you ace the interview. Hell make sure you are considered for this role and help you find others if you ask.Software Engineer Company Descri...

DescriptionJoin us to shape the future of our Markets CRM platform and make a lasting impact on the financial industry. You will have the opportunity to lead talented engineers drive technical innovation and influence the direction of market-leading solutions. At JPMorgan Chase we value your experti...

DescriptionJoin us to shape the future of our Markets CRM platform and drive impactful technology solutions. As a hands-on leader you will collaborate with talented engineers and influence the direction of our Markets business. We offer an environment that values innovation growth and continuous lea...

Join our team to deliver high-impact Defence software solutions for mission-critical systems. Youll work on projects requiring robust safety-regulated software development applying your expertise in C and compliance standards to ensure reliability and security. This is an opportunity to contribute t...

Currencycloudwas acquired by Visa in December 2021. The Treasury Liquidity Management Team is responsible for building the engine that determines where funds should be positioned at any given time to optimise liquidity across our global network. This engine will be designed using modern architectura...

Currencycloudwas acquired by Visa in December 2021. Our Realtime Data Platform Team is a newly formed group focused on enabling and supporting real-time data capabilities across the organisation. This team provides foundational services such as Apache Kafka Kafka Connect Apache Flink and other strea...

Currencycloudwas acquired by Visa in December 2021. This role sits within Visas Treasury function which is responsible for managing global liquidity cash flow and risk to keep payments moving smoothly across markets. Treasury ensures funds are available where needed and supports critical processes l...

About the roleParse chaos into structure. Youll help build the engine that analyzes and fixes infrastructure across thousands of codebases. Youll ship fast and work with other engineers to dig deep into weird bugs and performance issues.What were looking for:GMT2 to GMT-6 time zoneStrong Golang (or...

DescriptionBe an integral part of a technology team thats constantly pushing the envelope to enhance build and deliver top-notch technology products.As a Lead KDB Developer at JPMorgan Chase within Equities Trading you will play a pivotal role in building our next-generation KDB platform to support...

Help us use technology to make a big green dent in the universe!Krakenpowers some of the most innovative global developments in energy.Were a technology company focused on creating a smart sustainable energy system. From optimising renewable generation creating a more intelligent grid and enabling u...

Help us use technology to make a big green dent in the universe!Krakenpowers some of the most innovative global developments in energy.Were a technology company focused on creating a smart sustainable energy system. From optimising renewable generation creating a more intelligent grid and enabling u...

POS-28094Join HubSpot as a Senior Backend Engineer Empower SMBs to Grow with World-Class TechnologyAt HubSpot were on a mission to help small and medium-sized businesses (SMBs) thrive with our industry-leading CRM Marketing Sales and Services products. As a Senior Backend Engineer on our dynamic pr...

Institutional Fabric for the Digital Asset MarketFounded in 2018 Talos provides institutional-grade trading technology for the global digital asset market powering many of the major players in the crypto ecosystem.Our mission at Talos is clear: to advance the mass adoption of digital assets by seaml...

At ASOS we take real pride in our best in class microservices architecture whilst sticking to the ASOS values of Authentic Brave and Creative and are looking for Software Engineers to support and deliver the on-going software which makes ASOS awesome!As a Senior Software Engineer in one of our 30 en...

As a Software Engineering Manager youll lead a team of talented engineers responsible for designing building and operating mission-critical systems. Youll balance people leadership technical excellence and delivery while partnering closely with Product Architecture and other Engineering leaders.This...

CGI UK Careers Your mission found hereBy playing this video you consent to Google/YouTube processing your data and using cookies Learn more.Position Description:CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named one of the Worlds Best Employers by Forbes magazi...

We tackle the most complex problems in quantitative finance by bringing scientific clarity to financial complexity.From our London HQ we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution - because the best ideas take time to evolve. T...

Company OverviewAt Motorola Solutions we believe that everything starts with our people. Were a global close-knit community united by the relentless pursuit to help keep people safer everywhere. Our critical communications video security and command center technologies support public safety agencies...