7 of 7 Senior Software Engineer Jobs in the City of London

Senior Software Engineer/Developer (C# .Net) London onsite to £150k Are you an experienced C#, backend focussed Software Engineer? You could be progressing your career in a senior, hands-on role at a global Asset Manager with c$3 million under management. As a Senior Software Engineer within the trading … You are collaborative with excellent communication and stakeholder management skills You are degree educated in Computer Science or similar technical discipline What's in it for you: As a Senior Software Engineer/Developer you will receive a competitive package: Salary to £150k Bonus paid every six months based on personal performance (10-25%) Professional development Pension … Health Insurance Gym membership Social events, free fruit, snacks, coffee etc. Apply now to find out more about this Senior Software Engineer/Developer (C# .Net) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from More ❯

Our client, a fast-growing FinTech organisation delivering innovative digital financial solutions, is seeking a highly experienced Senior Software Engineer. This is a unique opportunity to join their dynamic tech team as they prepare to launch a brand-new mobile app in September 2025. The successful candidate will spearhead Python development, becoming the first permanent Python specialist within … collaborative team of Developers, Data Engineers, and Technology Experts. With a CEO who is a strong advocate of AI, experience and passion for AI technologies and their application in software development will be highly valued. Main Purpose of the Role: Lead and champion Python development within the organisation. Drive technical innovation across mobile app projects, backend development, and AI … driven solutions. Collaborate closely with a multi-disciplinary technology team to deliver scalable, robust solutions. Key Responsibilities: Design, develop, and maintain high-quality software solutions using Python. Contribute to mobile app development, ensuring seamless integration with backend systems. Build and maintain CI/CD pipelines for efficient and secure deployments. Develop solutions on AWS cloud infrastructure, ensuring performance, security More ❯

Senior Software Engineer Full Stack - AI Health Tech London, 2 days a week on site Up to £110,000 + Equity Looking to work on something meaningful? I'm currently helping a mission-led health tech start-up who are using AI to remove admin overload, freeing up doctors and clinicians to do what they do best … They're tackling complex, data-heavy workflows with intelligent automation. The result? Faster decisions. Better care. Less burnout. And millions of lives already improved. They're looking for a Senior Full Stack Engineer to join our founding tech team and help scale the impact even further. What You'll Be Doing Take real ownership across the full development More ❯

Senior Software Developer (C#, .NET, AWS) Hybrid (2x in London Office) | £70,000–£80,000 + Bonus + Clothing Allowance Our client is a direct-to-consumer fashion brand with a strong presence across the UK, US, and Europe. With the majority of sales coming through e-commerce, technology is central to how they operate and grow. As … they scale their digital platform and modernise their cloud infrastructure, they’re looking for a Senior Software Developer to join their fast-paced engineering team. This is a great opportunity to work on mission-critical systems that support millions of customers globally, while contributing to the evolution of a beloved brand’s technology stack. What You’ll Do … Full-Stack Cloud Development: Design, build, and maintain scalable cloud-native services and applications using AWS and .NET technologies. Own the Full Lifecycle: Take ownership of software delivery from ideation and design to development, deployment, and ongoing maintenance. Set the Standard: Help define and implement internal standards, libraries, and templates to promote consistency and speed across the engineering team. More ❯

Lead Software Engineer - TypeScript, Node.js, React, NestJS, Tailwind CSS, Postgres Overview We’re seeking a passionate Senior/Lead Engineer to join a fast-growing, profitable Series A food tech startup transforming the way people eat. This unique role offers you the chance to work directly with founders, influence the product and technical roadmap, and build … food quality control, anomaly detection, and kitchen management Automate manual workflows in kitchen operations, leveraging cutting-edge AI tools Collaborate closely with founders and the AI/Data Science engineer to shape product and technical strategy Stay hands-on with development, spending most of the time coding and problem-solving Foster a culture of innovation, rapid iteration, and continuous … improvement Essential Skills and Experience Proven software engineer with strong expertise in data engineering and system integrations Architectural skills with the ability to design scalable, stable systems from the ground up Experience building and managing small engineering teams Familiarity with AI-native development tools and a passion for leveraging AI in practical applications Highly motivated, curious, and hands More ❯

Go Engineer/GoLang Engineer/AI Engineer/AI Developer/Software Engineer - Go We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. Are you ready to bring your Lead Software Engineering expertise to the next level? We're looking … s commercial goals by harnessing artificial intelligence and machine learning technologies to develop new products, improve productivity, and enhance risk management effectively and responsibly Overview: Designs and develops creative software solutions, and technical troubleshooting with ability to think beyond routine or conventional approaches to build solutions or break down technical problems Develops secure high-quality production code, and reviews … and debugs code written by others Identifies opportunities to eliminate or automate remediation of recurring issues to improve overall operational stability of software applications and systems Leads evaluation sessions with external vendors, startups, and internal teams to drive outcomes-oriented probing of architectural designs, technical credentials, and applicability for use within existing systems and information architecture Leads communities of More ❯

SENIOR DATA ENGINEER PERMANENT CITY OF LONDON £80,000 As a key member of this team, you will play a pivotal role in designing and implementing data warehousing solutions using Snowflake and AWS. You will help drive the evolution of our data architecture as we move from Redshift to Snowflake. Looking for someone with extensive experience with cloud … as Glue (Spark), Lambda, Step Functions, ECS, Redshift, and SageMaker. Looking for someone with hands-on development Conducting code reviews, mentoring through pair programming. Looking for data engineering and software development Building APIs, integrating with microservices, or contributing to backend systems — not just data pipelines or data modelling. CI/CD and Infrastructure-as-Code Tools like GitHub Actions … services such as Glue, Lambda, S3, Redshift, and Step Functions. Lead the development of robust data pipelines and analytics platforms, ensuring high availability, performance, and maintainability. Demonstrate proficiency in software engineering principles, contributing to the development of reusable libraries, APIs, and infrastructure-as-code components that support the broader data and analytics ecosystem. Contribute to the evolution of the More ❯