Bytes Software Services Jobs in Westminster

Job Title: Core Java / Backend Developer – Solution Delivery (Microservices)Location: London (8 days onsite/month)Contract: Inside IR35Duration: 12 months + extStart Date: ASAPOverview:We are looking for a hands-on Core Java Developer to support the migration of a legacy application into a modern event-driven, service-oriented architecture within a...

Role SummaryAubay UK is seeking a Senior C++ Software Engineer to join a high-performing team responsible for a global derivatives algorithmic trading platform. Working closely with technologists, quants, and traders, you will design and optimise proprietary trading systems with a strong focus on performance, reliability, and scalability.The role s...

Senior Java DeveloperLondon / HybridCapital Markets TechnologyA growing capital markets technology business is looking to hire a Senior Java Developer to play a key role in building and evolving a cloud-native post-trade platform used across client reporting, APIs, workflow management, and trading operations.This is a hands-on engineering role with...

About ARQARQ is one of the fastest-growing fintechs in the world. Our mission is to redefine how people interact with money across borders, building the infrastructure to move value seamlessly. We’re still early in our journey, which means every person who joins shapes the future of our product, culture, and growth. If you’re excited by big challen...

Interested in being part of a growing, specialised team developing an award-winning SaaS analytics platform used to assess over £200bn of non-life insurance business?This is a mid to senior level software engineering role focused heavily on production-grade Python development. This is not a web-facing CRUD or API-endpoint development role. The core...

Job SummaryWe are seeking a skilled and motivated Software Engineer to join our dynamic team at CWAN. In this role, you will be responsible for designing, building, deploying, and maintaining high-quality code while collaborating with cross-functional teams to enhance our software offerings. This position is ideal for an engineer who is driven by c...

PHP Developers - frustrated by the lack of autonomy in your current role?You'll join as the first internal developer for a cyber security consultancy working with major organisations across critical infrastructure, transport, financial services, and public sector environments.You’ll take ownership of all internal development tasks and processes. He...

🚀 Senior Backend Engineer – FinTechWe’re partnered with a fast-growing B2B FinTech building modern billing infrastructure for scaling companies.This is a small, high-calibre engineering team where backend engineers have genuine ownership across product, architecture, and platform decisions.What You’ll Be Working On 👇• Building end-to-end product ...

Job SummaryWe are seeking a skilled and motivated Software Engineer to join our dynamic team at CWAN. In this role, you will be responsible for designing, building, deploying, and maintaining high-quality code while collaborating with cross-functional teams to enhance our software offerings. This position is ideal for an engineer who is driven by c...

Senior Java Software Engineer - Java, AWS, REST APIs, Microservices, Machine Learning, Artificial intelligence, Python (Hybrid - 3 days a week in the office - Notting Hill)Description for the Senior Java Software Engineer role:- You will be joining a fast-growing, research-driven company building an artificial intelligence using novel machine learn...