15 senior software engineer jobs found in London

An excellent opportunity to join one of the UK's leading software consultancie s , renowned for its strong presence in the public sector while also delivering private and SC-cleared projects. As a Senior Software Engineer, you will look to design, build, and deliver high-quality software solutions using Java, Spring Boot, and micro services click apply for full job details

One of the UK’s fastest-growing fintechs is hiring. At ANNA Money, we’re rethinking what business admin should feel like for freelancers, founders and small businesses. No jargon, no clunky tools — just smart, intuitive products that actually save people time. From invoicing and expenses to tax and accounting, we’re building a platform that removes the hassle from running a business. Powered by AI and backed by genuinely brilliant customer support, ANNA helps thousands of customers focus less on admin and more on what they do best. Our Vision:  ANNA Money endeavours to alleviate the burden of time-consuming administrative tasks that every small business owner inevitably encounters. Our core objective is to automate these repetitive tasks, enhancing our customers’ efficiency, speed, and overall ease. This dedication to automation supports our customers’ business operations and allows them the freedom to dedicate time to other critical aspects of their business. Our Team:...

Starling is the UK’s first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. We’re a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We’re a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices. Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will...

Starling is the UK’s first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. We’re a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We’re a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices. Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will...

Starling is the UK’s first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. We’re a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We’re a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices. Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will...

Principal Java Engineer (AWS / Microservices) Salary: Up to £100,000 + Bonus + Benefits Location: Coventry or Central London - Hybrid (2 days per week onsite) Working Hours: 40 hours per week - Full time Job Type: Permanent A globally established organisation is seeking an experienced Principal Java Engineer to shape the future of large-scale digital platforms used by millions of customers. This role will focus on driving engineering excellence, defining technical standards and leading the design of scalable, high-availability systems across a modern cloud-native environment. Responsibilities for the Principal Java Engineer: Define and evolve engineering strategy, standards and best practices across your domain Lead technical direction across multiple engineering teams and programmes Design and oversee delivery of large-scale, distributed systems using modern technologies Provide expert guidance on technical risk, architecture decisions and prioritisation Support...

Hello, we’re Starling. Banking was broken – so we decided to fix it. The vision? Fast technology, fair service and honest values. All at the tap of a phone, all the time. We built Britain’s first digital bank. One hard-won banking licence later, we set about giving people a new way to spend, save and manage their money (and take better care of the planet, too). We’re changing banking for good. Back then, we were obsessed with unravelling the knotty world of finance and solving people’s problems rather than selling them stuff. We still are. Since then, we’ve grown. A lot. Over four million accounts (and four account types!). A team of thousands. Headquartered in London with offices in Cardiff, Dublin, Manchester and Southampton. Seven years voted Which? Recommended Provider and Britain's Best Banking Brand. Still zero branches. Our culture is open, inclusive and focused on solving real customer problems, with an emphasis on doing the right thing, even when it’s not always the easy...

Senior C++ Developer (Hybrid, UK-Based) Location: London Salary : £80,000 - £100,000 + EMI Share Options + Private Medical Insurance Vacancy Type: Full-time, Permanent We take care of time, so our customers don t have to. At Hoptroff, we build nanosecond-accurate, software-driven timing systems used by global investment banks, telecoms operators, and broadcasters - including the MiFID II-compliant trade timestamping that financial regulators depend on. When microseconds aren t tight enough and milliseconds are an eternity, our software is what s keeping the world in sync. We re entering an exciting phase of growth and looking for a Senior C++ Developer to join our small, high-calibre engineering team. You ll write modern C++ (C+ or later) at the heart of our Linux-based clock and time synchronisation platform - tight, performance-sensitive code where jitter is measured in nanoseconds and correctness is non-negotiable. You ll own significant components of the...

AI Engineer Salary: Up to £85,000 + Benefits Location: Hybrid - 3 days per week onsite in London Working Hours: Full time - Monday to Friday A globally renowned organisation is seeking an AI Engineer to join a high-performing technology function delivering intelligent, production-grade AI solutions across enterprise environments. This is a hands-on role combining full-stack engineering with advanced AI system development, focused on building scalable, secure and impactful solutions that deliver measurable business value. The AI Engineer role suits an experienced engineer with strong software foundations and practical expertise across Generative AI, Agentic AI and machine learning, who enjoys working closely with stakeholders and contributing to complex delivery initiatives. Responsibilities for the AI Engineer: Design, develop and maintain end-to-end AI solutions spanning front-end interfaces, back-end services and data pipelines Build, optimise and deploy AI and...

Leading Investment Management firm is seeking a highly skilled Unified Communications & Audio Visual Engineer to design, support, and enhance enterprise Unified Communications (UC) and Audio Visual (AV) platforms across the business. This role blends deep technical UC engineering capability with hands-on AV and meeting support, ensuring reliable, secure, and high-quality collaboration experiences for end users, executives, and trading environments. The successful candidate will support and evolve platforms including Cisco CUCM, WebEx (Dedicated Instance), Microsoft Teams, voice recording and enterprise AV meeting room technologies, while providing responsive meeting and event support. This role requires strong technical expertise, excellent communication skills, and a customer-focused mindset, operating within a global, distributed team. The successful candidate will be expected to attend the London office 3 days per week + 2 days WFH Key Responsibilities...

You will be ensuring high-quality service delivery, process optimization, and team resilience in a high-pressure, regulated environment. The position combines strategic oversight, team leadership, and hands-on guidance on complex escalations while fostering a supportive culture and driving continuous improvement. You will have some of the following skills and experience; Proven experience in IT support management or solutions engineering leadership, preferably in healthcare, medical imaging, or regulated environments (5+ years, with 3+ in a leadership role). Technical Depth : Strong knowledge of networking, hardware, software troubleshooting, PACS, DICOM/HL7, and image routing solutions. Tool Proficiency : Experience with Microsoft SQL Server, Microsoft Server OS, Microsoft Azure-based installations, and support platforms like Zendesk for issue tracking and resolution. Leadership Skills : Demonstrated ability to lead teams in high-pressure environments, mentor...

At Engine by Starling, we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology.  Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and a year ago we split out as a separate business.  Starling Bank has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. This SaaS technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. We draw upon our experience as FinTech experts, and best-in-class technologists, to become the chosen option for these banks, and preferred partners for leading consultancies. As a company, everyone is expected to roll up their sleeves...

At Engine by Starling, we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses on our technology. Engine is Starling’s software-as-a-service (SaaS) business - the technology that was built to power Starling Bank is now available to financial institutions globally. Our designers are at the very heart of Engine. We operate a flat structure to empower you to make decisions, ensuring innovation and collaboration are at the core of everything you do. To thrive at Engine, you must be a self-driven individual who takes full ownership—from shaping brand strategy to delivering the high-fidelity assets that empower our sales teams and delight our clients. Hybrid Working We have a Hybrid approach to working here at Engine - our preference is that you're located within a commutable distance of one of our offices so that we're able to interact and collaborate in person. About the role We are looking for a...

At  Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology.  Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling, and two years ago we split out as a separate business.  Starling has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. This SaaS technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. We draw upon our experience as knowledgeable bankers, and best in class technologists to become the chosen option for these banks, and preferred partners for leading consultancies. Hybrid Working We have a Hybrid approach to working...

Senior Java Developer (AWS, Java, API) - Sussex - Hybrid Daily rate: £500 - £700 (inside IR35) Duration: 6 months Hybrid: 2 days a week on site (tues, weds) Start: ASAP My client is looking for a Senior Software Developer (AWS/Java) to join the Digital Development & Delivery team. You will play a key role in designing, developing, and maintaining secure, scalable, and cloud-native Java microservices, primarily hosted on AWS, integrating with both internal and third-party systems. Collaborating closely with technical leads, platform engineers, QA, and product teams, you will follow best practices in software design, observability, security, and DevOps principles. You will also contribute to L3 support activities, ensuring the stability and reliability of production systems. Requirements: 5+ years of professional backend development experience Strong understanding of Object-Oriented Programming principles and familiarity with Functional Programming...