Java Software Engineer jobs in Islington

Lead Java Developer - £85k & London 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. Java, Springboot, Microservices, AWS I’m partnering with an established tech firm that’s been building digital platforms and mobile products for over 2 decades. They work with well‑known businesses in highly regulated...

I'm looking for a Contract Java Software Engineer to join my client in their FinTech Business Unit. 6 month | Inside IR35 | Hybrid (1x week London) | £550 per day What you'll do: Develop scalable, high-performance systems and microservices Solve complex technical challenges and advocate best practices Support compliance processes with advanced tooling and analyticsRequirements: - Java + least...

Backend Software Engineer / Developer (Windows C / C++, C#) London to £70k FTC Are you a skilled Backend Software Engineer with strong C++ skills? You could be progressing your career in a senior, hands-on role at a global market data provider whilst enjoying a range of perks and benefits. As a Backend Software Engineer you will join an Agile team focussed on building and maintaining Exchange...

Senior Software Engineer Node.js / AWS / React London (Hybrid, 3 days onsite) Be one of the first applicants, read the complete overview of the role below, then send your application for consideration.Are you the kind of Senior Software Engineer who enjoys taking something fast-and-scrappy and turning it into something scalable, elegant, and genuinely robust?This is a chance for a Senior...

Job Title: Senior Java Engineer (Smart Contract) Location: London Contract: 12 Months Are you a passionate Senior Java Developer looking to make a significant impact in an innovative environment? Our client is seeking a talented individual to join their dynamic team in London, where you'll design and develop cutting-edge microservices for a next-generation loans processing application. If you...

Platform Engineer - Active SC, Oracle, Nginx Up to £550 per day - Inside IR35 Hybrid 6 months My client is an instantly recognisable consultancy who urgently require a Platform Engineer with Active SC Clearance for an end client within the public sector. Key Requirements: Proven commercial experience working as a Platform Engineer within the public sector. Active SC Clearance. Experience...

You will have a learning and development budget to support this. Python, Java, TypeScript, JavaScriptReact, Angular, ReactKubernetes (k8s) DockerAWS, AzureElasticsearch, MERN, Neo4JBenefitsExcellent company benefits including significant pension contributions, BUPA, equity and training allowance.

You will own the lifecycle of services that handle identity verification, risk assessment, and onboarding for a global partner base.

Software Engineer (stealth mode start-up) A stealth mode start-up, recently established by a team of highly experienced engineers and entrepreneurs with substantial financial backing and a proven history of successful technology ventures, is seeking software engineers with a minimum of 2 years of commercial experience to join as founding members of the initial team. These positions are perfect...

Software Engineer - C++ Title: Software Engineer - C++ Company: Elite Software House Location: Remote (London office) Salary: £80,000 - £115,000 Skills: C++, Algorithms, Boost Overview: Are you someone that thinks that writing slick, classy C++ code can and should be an art? Would you like to be part of an internationally recognised team of C++ experts led by the brightest C++ minds in the...

Senior Software Engineer - .NET Core, Blazor, SQL Server Location: Remote (UK-based) Salary: £50,000 - £60,000 (depending on experience) Benefits: Company pension scheme, 25 days holiday + bank holidays Applause IT are recruiting for a Senior Software Engineer on behalf of a highly impactful, tech-driven not-for-profit organisation that's tackling one of the world's most pressing health...

Lead Software Engineer Stealth AI Fintech Startup | London | Hybrid (3 days on-site) We’re hiring on behalf of an innovative Fintech startup that is building an AI-driven platform that’s rethinking how investors analyse, access, and manage alternative assets (e.g. private equity, private credit and other private markets). They've built there MVP, raised funding from experienced fintech founders...

Role: Software Engineer - Full-Stack - TypeScript, Node.js Location: London Working Model: Hybrid - 3 Days Salary: Up to £99,000 Ready to build tech that actually means something? This team is powering the next generation of electrification — EVs, solar, batteries, heat pumps, smart devices — all connected through a platform that’s scaling fast and rewriting the rulebook in green-energy...

Senior Full Stack Developer – Java & React Build Products That Shape High‑Stakes Decision‑Making I have partnered with a fast-growing tech firm who are building AI powered tools used by Fortune 500 business leaders. They are enabling them to make critical decisions across the business and have reportedly been ranked as #1 in their field! They’re scaling quickly, backed by major investment, and...

You will be a significant hire and will own much of the development of a cutting-edge compiler development project. Significant hires have already been made in the team to support this role. Mostly LLVM based, it is important you also have experience working with GPUs to an extent.

Senior Software Engineer Node.js / AWS / React London (Hybrid, 3 days onsite) Are you the kind of Senior Software Engineer who enjoys taking something fast-and-scrappy and turning it into something scalable, elegant, and genuinely robust? This is a chance for a Senior Software Engineer to join a small, but ambitious tech-for-good / IoT startup based in the London City Centre thats building...

You will gain experience which will enable your career to take a leap forward.

You will deliver high-quality production code and design control system architectures for real time environments that support robotic movement, manipulation, and teleoperation.

You will be rewarded with an excellent package that includes:

Software Engineer Stealth AI Startup | Seed Stage | On-site We’re hiring for an early-stage but fast-growing AI startup building a cloud-native analytics platform that turns large volumes of LLM output into structured, queryable intelligence for businesses and brands. Their stack is fully on AWS, heavily event-driven, and designed for scale. They work with modern serverless and...

Lead Java Developer - £85k & London Java, Springboot, Microservices, AWS I’m partnering with an established tech firm that’s been building digital platforms and mobile products for over 2 decades. They work with well‑known businesses in highly regulated industries, where systems need to be secure, reliable and built properly. They’re not chasing trends or rushing features out, their focus is on...

Lead Java Developer - £140k, Equity, Sign-on Bonus Java25, Springboot, Microservices, AWS, TDD, React I am working with a high‑growth FinTech that’s about to enter a huge new chapter. They are a fast‑scaling FinTech that’s in the middle of a major rebrand, new name, new logo, and a shift to a truly global financial platform. The full reveal is coming in this quarter, and the energy inside the...