senior software engineer- java jobs in London

About usEncord is the universal data layer for AI that helps 300+ AI teams train and run models on the right data. Our platform indexes, curates, annotates, and evaluates data across the full AI lifecycle, from development through production. Trusted by Woven by Toyota, AXA, UiPath, Zipline, and more.We're an ambitious team of 100+ working at the frontier of...

Company Description We’re Checkout.com. You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because we’re behind many of the digital experiences you use every day. We are where the world checks out, enabling over 10 billion transactions yearly for more than one billion global shoppers. Whether you want to book a...

Full-timeCompensation: GBP 111,000 - GBP 145,000 - yearlyCompany DescriptionWise is a global technology company, building the best way to move and manage the world’s money.Min fees. Max ease. Full speed.Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a mission...

Job TitleSenior Java/FIX Engineer - IG PrimeJob DescriptionPrime Java/FIX EngineerSo, who are we?IG Group is a FTSE 100 fintech operating across five continents, serving over 1.4m customers and handling billions of dollars in transactions – built on scale, trust, and proof. We didn't pivot to innovation; it's how we've always operated. What that means for...

Smart Communications is a leading customer engagement technology provider for regulated industries. We are seeking an experienced full stack developer to extend our long‑lived enterprise product, from the Java back end to the browser, with a focus on clean, well-tested code.You will join an Agile team, own features end-to-end, and contribute to automated...

At Signal AI, we use cutting-edge AI technology to offer clarity on decisions that shape businesses and society.If the following job requirements and experience match your skills, please ensure you apply promptly.We value restless curiosity, creative thinking, and diverse perspectives as we strive to become AI-native.We believe that AI is a collaborator, not...

Take a step forward and let Edenred surprise you.Every day, we deliver innovative solutions to improve the life of millions of people, connecting employees, companies, and merchants all around the world. We know there are hundred ways for you to grow.Please make an application promptly if you are a good match for this role due to high levels of...

Citi in London is seeking a Senior Low Latency Java Engineer to lead development of high-performance trading applications and frameworks. The role sits in the HPA team, focusing on Java-based microservices and low-latency design across Citi’s trading platforms.You will work with market data handling, time-series databases like KDB, and mentor junior...

A technology consulting firm in the City of London is seeking a Senior/Principal Java Developer specialized in low-latency systems for the financial services sector. The role involves developing high-performance Java applications, eliminating performance bottlenecks, and maintaining a flexible work schedule. Candidates should have expertise in JVM internals...

FIS Global is seeking a skilled engineer to join the Worldpay by FIS team in a full-time capacity. You will implement AWS-hosted Java solutions, focusing on compute, storage, observability and security, while shaping a hybrid cloud/on-premises architecture.Initially hands-on, you’ll move toward a system architecture role as the cloud journey advances,...

Job Description Overview Are you ready to make a significant impact in the world of financial technology? We are seeking a dynamic and experienced Senior Software Engineer to join our Portfolio Optimization Team. This is your chance to be part of a forward-thinking organization that is revolutionizing financial markets by unlocking capital constraints and...

Meet the Team Cisco ThousandEyes is a Digital Assurance platform that empowers organizations to deliver flawless digital experiences across every network – even the ones they don’t own. Powered by AI and an unmatched set of cloud, internet and enterprise network telemetry data, ThousandEyes enables IT teams to proactively detect, diagnose, and remediate...

Job ID: Posted: Location: London, England, United Kingdom Category: Technology Company: Citi Join Citi's XVA Technology team in London as a Lead Software Engineer, Applications Development at Vice President level — a senior role at the forefront of engineering innovation within a globally operating financial institution. In this position, you will...

End Date Friday 13 November 2026Salary Range £84,624 - £126,936Flexible Working Options Hybrid Working, Job ShareJob Description Summary .Job DescriptionJOB TITLE: Senior Software EngineerSALARY: £84,624-£105,780LOCATION(S): LondonHOURS: Full-timeWORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of our...

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation,...

Who are we? Smarkets: Predicting the Future of Betting Smarkets runs one of the world's most sophisticated prediction markets, handling over £29 billion in volume since 2010 and engaging 200,000+ traders globally. We're a technology company that happens to revolutionise betting - from sports to political markets, to delivering the sharpest prices and the...

Why Faculty? We established Faculty in 2014 because we thought that AI would be the most important technology of our time. Since then, we’ve worked with over 350 global customers to transform their performance through human‑centric AI. You can read about our real‑world impact here. We don’t chase hype cycles. We innovate, build and deploy responsible...

About FlowFlow Engineering is an AI-native requirements platform for modern engineering organizations, enabling hardware teams to collaborate with AI agents to design, validate, and evolve complex systems with speed and rigor.About the roleFlow is seeking software engineers to build AI-powered capabilities that help teams author, review, and manage...

At CoMind, we are developing a non-invasive neuromonitoring technology that will result in a new era of clinical brain monitoring. In joining us, you will be helping to create cutting‑edge technologies that will improve how we diagnose and treat brain disorders, ultimately improving and saving the lives of patients across the world. The Role: You will...

The roleWe're looking for a Senior Software Engineer to join Wayve's Data and Orchestration team in London, working on the platforms that power our data engineering, orchestration and inference workflows at scale. This team builds the infrastructure that enables partner teams to ingest, process and transform high-volume data from external vendors, vehicle...