Senior Java Software Engineer jobs in City of Westminster

Senior Java Engineer (Core Java) Want to apply Read all the information about this position below, then hit the apply button. £100,000 - £130,000 Central London - Hybrid A high-growth, privately backed Enterprise SaaS company is seeking a Senior Core Java Engineer to join its London-based engineering team. The organisation builds large-scale, mission-critical platforms used by some of the...

Senior Java Developer - Java, Springboot & AWS – paying up to £650/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract You can get further details about the nature of this opening, and what is expected from applicants, by reading the below. Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a...

Java Developer Increase your chances of an interview by reading the following overview of this role before making an application. Join a high-impact Core Technology team at a leading hedge fund. About the Company This firm is a major player in the space, a multi-strategy hedge fund with a strong focus on systematic and quantitative trading. Founded by industry veterans, it combines deep...

Java Software Engineer In order to make an application, simply read through the following job description and make sure to attach relevant documents. A leading trading firm in London is growing its engineering team and is looking for a high-performance Java Engineer to help build ultra-low-latency systems used directly on live trading desks. What You'll Be Doing - Designing and building...

Senior Software Engineer | Distributed Systems | Sustainable Cloud Native Platform Applying for this role is straight forward Scroll down and click on Apply to be considered for this position. Up to £110,000 per annum plus bonus plus stock Central London office Golang, Rust, C, Kubernetes, Linux, Cloud Native, Distributed systems... Are you a Senior Software Engineer with extensive knowledge...

You will collaborate closely with cross-functional partners to push technology forward, even in areas where solutions are still being defined. Key Responsibilities - Monitor industry and company-wide computing technology trends to evaluate and develop new capabilities aligned with the product roadmap.

About Us: If you think you are the right match for the following opportunity, apply after reading the complete description. We're a VC-backed stealth-mode company building behavioural AI solutions for the retail industry. Our platform is designed from the ground up — no legacy, no patchwork systems — just a clean slate and a clear vision. Our mission is to bring the intelligence of modern...

You will also collaborate with the Platform, Support and DevEx teams on the wider technical strategy, reporting to the Director of Engineering in an influential role.

Senior Software Engineer (.Net & Angular) - £70,000 – £85,000 pa + 25% Bonus + Benefits To be considered for an interview, please make sure your application is full in line with the job specs as found below. I am working with a leading professional services client in London that are looking for a Senior Software Engineer with full stack capabilities to join a small but talented team. The team...

Senior Software Engineer (Golang) Interested in this role You can find all the relevant information in the description below. London – Hybrid flexible Up to £80,000 + equity We're currently partnered with a real-time sports data platform that is revolutionising how companies leverage data to empower their business. They are looking for a performance focused Senior Engineer with a passion for...

Senior Software Engineer Apply below after reading through all the details and supporting information regarding this job opportunity. Key Technologies: C#, .NET, React, JavaScript, Typescript, AWS, Docker City of London, United Kingdom Perm Role: £80,000 - £120,000 Harrington Starr has partnered with a Global Financial Services Vendor and they are looking for a Senior C#, .NET Software...

You will join a cross-functional product engineering team focused on the evolution and modernisation of a core InsurTech platform. The work centres around building scalable, cloud-native services while improving performance, reliability, and long-term maintainability.

Senior Software Engineer Is this the next step in your career Find out if you are the right candidate by reading through the complete overview below. Full Stack - Ruby on Rails, React Up to £120k DOE Fully Remote - must be UK based A fast-growing sports tech company building high-performance, data-driven products for a rapidly expanding global audience is searching for a Senior Full Stack...

Senior Software Engineer (Python) A high number of candidates may make applications for this position, so make sure to send your CV and application through as soon as possible. Up to £130,000 + excellent benefits (including work from abroad) Hybrid - 2 days onsite in Central London (London Bridge) Are you a Senior Python Engineer who loves solving deep technical challenges? Want to help...

Senior Python software engineer - with strong Maths background Is this the role you are looking for If so read on for more details, and make sure to apply today. Are you a software engineer who thrives on building robust, scalable products with a strong foundation in mathematics and analytics? We're specifically looking for an engineer—not a data scientist—to join ScanmarQED as a Senior Python...

Senior Software Engineer (Robotics) Have you got the right qualifications and skills for this job Find out below, and hit apply to be considered. London (On-site, 5 days/week) Permanent role with excellent on-site benefits We're looking for a Senior Software Engineer to help turn our advanced robotics stack into a dependable, real-world product. This is a hands-on role where you'll write...

Senior Software Engineer (Python - FastAPI) Find out more about the daily tasks, overall responsibilities, and required experience for this opportunity by scrolling down now. This fast-growing consultancy is pushing the boundaries of AI and data science, helping clients turn complex challenges into scalable, production-ready solutions. They're now hiring a Senior Software Engineer who can blend...

A fast-growing AI-driven SaaS company is hiring three Senior Software Engineers to join its engineering team. These are hands-on roles with a strong backend and architectural focus, ideal for engineers who enjoy working in scale up or startup environments and want to build high-quality, cloud-native software that powers real-world automation. The experience expected from applicants, as well as...

Java Engineer - Java Developer - Software Engineer - PostGres - Kubernetes - Kafka - TDD - 6-Month Contract - Hybrid (2 days on site, London) - Day Rate: Up to £650 (Inside IR35) Apply (by clicking the relevant button) after checking through all the related job information below. Join a high-performing engineering team working on large-scale, high-availability systems used by millions. This...

Senior Embedded Software Engineer Scroll down for a complete overview of what this job will require Are you the right candidate for this opportunity Salary: Up to £100,000 Location: London - 3 days a week We're working with a rapidly growing tech for good company that is transforming how data, automation, and smart integrations shape the future of digital infrastructure. Their platform...