1 to 25 of 81 Permanent Senior Software Engineer Jobs in London

Senior Software Engineer A fantastic opportunity for a Senior Software Engineer to join a world-class technology company developing advanced AI-driven software solutions. Working within an exceptional engineering environment, you will play a key role in designing, building and enhancing highly sophisticated … software platforms that solve complex real-world problems. This organisation is known for attracting some of the brightest technical minds in the industry and places a strong emphasis on both academic excellence and engineering capability. Location: Cambridge (minimum 2 days per week in the office) Salary ...

Senior Software Engineer C++ (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Backend) ***This is a hybrid role, 3 days remote and 2 days in the office*** Our client actively encourages diversity, equality and inclusion within its workforce and welcomes applications from a diverse background … Solutions Limited does not discriminate in regards to age, gender, national origin, religion or any other basis. An excellent opportunity has arisen for a Senior Software Engineer C++to join a friendly team my client are a well-established exchange (FinTech, Financial Technology) based in the City. ...

Senior Software Engineer/Developer (Java Mathematics) WFH/Surbiton to £70k Are you a 'mathematically minded', senior hands-on Software Engineer looking for an opportunity to work on complex and interesting systems? You could be joining a global geoscience technology company within … exploration. As a Senior Software Engineer you'll join a supportive Agile team responsible for the company's highly complex desktop oil discovery product. You'll gain exposure to the full software development lifecycle working on new features and enhancements as well as maintaining existing applications. ...

excellent opportunity for a Senior Software Engineer- C# with .Net and Restful API with the job based in Uxbridge. With continued growth of the business my client is looking for a Senior Software engineer to be a part of a motivated engineering team working … will be developing detailed code for the development of next gen products. To be a great match for the Uxbridge based job as a Senior Software Engineer, you will come from a strong background in a variety of languages such as C# .Net AND VB and have ...

Senior Software Engineer Salary: Negotiable plus benefits, pension (7% contribution), 25 days holiday & life insurance We are looking for senior software engineers with a range of levels of experience including designing and delivering software applications. We are a small but rapidly growing consultancy, owned … looking for candidates with a mix of technical expertise and interpersonal skills, able to work independently or in small teams. The Role: As a Software Engineer, you will play a major role in developing code in the Software Modelling and Simulation, autonomy and geospatial fields, along with ...

Senior Embedded Software Engineer - C/C++ looking to work for a company that makes products that save lives. If so, then this is the job for you! My client's office is based in Rochester, Kent, commutable from Gravesend, Dartford, Bexleyheath, Sittingbourne, Maidstone, Ashford, and Sevenoaks … skills to fill this role Read the complete details below, and make your application today. In this job you will design and develop application software and embedded firmware in C and C++ for future products and assist with the support and enhancement of my clients existing product portfolio. ...

Senior Software Engineer C++ When registering to this job board you will be redirected to the online application form. Please ensure that this is completed in full in order that your application can be reviewed. Within your role as Senior Software Engineer C++ … support and mentorship as required to ensure you are reaching your full potential. You will be involved in a variety of projects within the Software Engineering team such as regular stand ups, fixing bugs, project, and design, and supporting junior members of the team. Additionally, you will also ...

Senior Python Software Engineer/Developer (Django AI) London/WFH to £120k An established FinTech business specialising in automated investment reporting is looking for a Senior Python Software Engineer to take a leading role in the design and delivery of its software products. As a Senior Python Software Engineer you'll be in a product focused engineering role, combining hands-on Python development with technical ownership. You'll lead projects end to end, shape architecture and drive the delivery of new product capabilities, working across backend engineering, data ...

Senior Software Engineer: Sports Betting Up to £120,000 + Bonus + Excellent Benefits London - 5 Days On-Site | Python | Java | AI | Low Latency | Distributed Systems Build software where performance, mathematics and real-time decision-making genuinely matter. We're partnering with a highly technical sports … betting business continuing to invest in its engineering function. They're looking for Senior Software Engineers to work on complex backend systems operating across real-time data, quantitative problems and high-performance distributed architecture. This is an opportunity for engineers who enjoy difficult technical problems rather than simply ...

offices, we have earned superior financial strength ratings from each of the major rating agencies. General Reinsurance, London Branch is offering an opportunity for Senior Software Engineer. Context of the Role: We are seeking a highly skilled Senior Software Engineer with a strong background … building scalable, high-quality, and high-performance solutions on the Microsoft technology stack (.NET/Blazor/C#). As a Senior Software Engineer, you will be responsible for building and maintaining internal and external-facing web applications in collaboration with international and interdisciplinary teams. ...

Senior Software Engineer Portsmouth Competitive Salary + Bonus + Excellent Benefits Are you the person other engineers turn to when automation problems become too complex? Do you enjoy improving machinery rather than simply maintaining it, and want a role where you can influence the future direction … automation, robotics and manufacturing technology? We're recruiting for a senior engineering position within a highly advanced manufacturing environment where automation is central to business growth. You'll play a key role in developing, optimising and supporting sophisticated robotic production systems, helping to drive reliability, efficiency and future automation ...

Senior Python Software Engineer/Developer (Django AI) London/WFH to £120k An established FinTech business specialising in automated investment reporting is looking for a Senior Python Software Engineer to take a leading role in the design and delivery of its software products. As a Senior Python Software Engineer you'll be in a product focused engineering role, combining hands-on Python developm click apply for full job details ...

Senior Software Engineer - Rust (Any Backend Language Accepted) Fastest Growing Start-up in the UK | Defense | Senior Software Engineer | Rust We are partnered with one of the UK's fastest-growing start-ups. They are a very technically focused group building cutting-edge decision … just over two years, and already have a lot of customers in the UK. On-site | London Up to 150,000 + Equity Senior/Principal Software Engineers: They're looking to add Senior/Principal Engineers to their team. The team are open to hiring pure ...

JMB90 - Senior Software Engineer (C++/Defence Systems) Location: North London Salary: Dependent on experience Job Type: Full-Time, Permanent Overview First Military Recruitment are currently seeking a Senior Software Engineer on behalf of one of our clients. The successful candidate will take responsibility … design, development, testing and maintenance of software used within innovative defence and technology products. You will work across the full software development lifecycle, providing technical expertise while supporting and mentoring less experienced engineers. Duties and Responsibilities Design, develop, implement and test software for new and existing products. ...

Senior Software Engineer/Developer (Java Mathematics) WFH/Surbiton to £70k Are you a 'mathematically minded', senior hands-on Software Engineer looking for an opportunity to work on complex and interesting systems? You could be joining a global geoscience technology company within ...

White Collar Factory (95009), United Kingdom, London, London Senior Software Engineer Job Title: Senior Software Engineer Location: London - Hybrid Working Pattern: 3 days in-office (Tuesday-Thursday) and 2 days remote. Our Mission We’re on a mission to be a force for good … plenty of opportunity to talk, coach and learn with many great and diverse individuals. In this role, you will design, develop, test, and maintain software products that automate core business processes. You will walk in the shoes of our users, collaborating with Business, Technology, and Operations teams to build ...

121122Category: Software EngineeringLocation: United KingdomWorkplace: HybridSchedule: Full time, NAPosted: 2026-11-04Closes: 2026-11-18We’re looking for a Senior Software Engineer to play a pivotal role in evolving M&S’s Payments Platform. This team provides the critical software capabilities that power … make them faster, more effective, and more confident through scalable services, resilient integrations, and exceptional engineering practices.This is a role for an engineer who is excited by building high-volume transactional systems, solving complex payment challenges, and modernising technology platforms that sit at the heart ...

About Us: We are the Information Intelligence Group (IIG) of CACI UK, a specialist software consultancy providing new bespoke solutions to solve our customers complex operational problems. As our business continues to grow, we are interested in speaking with an experienced Full Stack Software Engineer with expertise … Opportunity: We have a wide variety of teams who support our customers on a range of interesting and complex projects, building new bespoke software solutions and providing them with up to date capability to meet their needs. As a Senior Software Engineer, you will join ...

Spectrum IT Recruitment is working with an innovative technology business at the forefront of 5G and wireless communications . They're looking for a Senior Software Engineer to join their software team in Southampton. This role would suit an experienced engineer whose main focus … C++ software development , particularly in multithreaded or high-performance systems. The Role You'll take a leading role in developing, integrating and optimising software that supports the company's 5G NR Physical Layer (PHY) technology . Working with software, hardware, architecture and system-test teams ...

technology, we strive for professional excellence, and we leave a mark. We take the future into our hands. We are TÜV SÜD.Role OverviewAs a Senior Software Engineer (Innovations) you will be developing software-based solutions to business problems in a small team of full-stack software … automate our internal processes. As part of the Innovations Team, you will liaise with various parts of the business to provide new and innovative software solutions for internal company usage. You will be expected to input on software requirements, software implementation and propose effective solutions. You will ...

delivery by guiding teams through complex technical challenges, improving decision-making, and contributing to planning and risk management Mentor engineers, grow senior technical capabilities and champion AI-assisted development and engineering automation Job requirements Your skills and qualifications Proven experience as a Senior Software Engineer or Senior Data Engineer or in an equivalent senior individual contributor role Strong background in data platforms, distributed systems and cloud-native architectures, with experience shaping technical direction across teams and stakeholders Solid expertise in relevant technologies such as AWS, Terraform, Kafka/MSK, Airflow, Glue ...

Senior Software Engineer Platform/Core Infrastructure London | 4 days a week on site Up to £120k We're working with a London-based fintech that has scaled rapidly in a short space of time. Their platform now processes billions in annual transaction volume , operating across multiple … markets and supporting a fast-growing customer base. This is a Senior Platform Engineer opportunity where you'll take ownership of critical platform initiatives, make key architectural decisions and build the foundations that enable engineering teams to deliver software securely, reliably and at pace. You'll work ...

Software Engineer - AI/TypeScript/Rust Location: Hoxton, London - five days per week in the office. We're partnering with an AI startup building software to help businesses make better financial and strategic decisions. Their first product brings AI agents into Excel , helping users build … work with complex financial models. They're looking for a Software Engineer to take ownership of features across the product, working within a small, highly technical team. The stack is primarily TypeScript , with Rust used for performance-critical components. What you'll be doing Own features ...

about our mission and what we offer. Job DescriptionWe are expanding our Latam & Mea Payments Team and are looking for ambitious and highly skilled Senior Software Engineers to join the engineering team. You will lead the development of the critical integrations enabling money movement across the Latam … with a desire to take ownership and make a significant impactAutonomous team player able to work effectively with minimal supervision. Proven experience as a Senior Software Engineer, with a strong track record of delivering high-quality, scalable systems and a strong Product mindsetDeep technical expertise in back ...

about our mission and what we offer . We are expanding our Latam & Mea Payments Team and are looking for ambitious and highly skilled Senior Software Engineers to join the engineering team. You will lead the development of the critical integrations enabling money movement across the Latam … desire to take ownership and make a significant impact Autonomous team player able to work effectively with minimal supervision. Proven experience as a Senior Software Engineer, with a strong track record of delivering high-quality, scalable systems and a strong Product mindset Deep technical expertise in back ...