11 of 11 Part-Time Senior Software Engineer Jobs in the City of London

Senior .NET Software Engineer | London | 80,000100,000 + Bonus + Hybrid Location: Central London (Hybrid: 1-2 days in office) Salary: 80,000100,000 + performance bonus + excellent benefits Tech: .NET 8, C#, AWS, Microservices, REST APIs, SQL, CI/CD, Docker/Kubernetes The Opportunity We are working with a high-growth SaaS organisation … in Central London that is expanding its platform and engineering function, seeking a Senior .NET Software Engineer to join its talented, cloud-first team. This is an outstanding opportunity to work in a modern engineering environment where quality, scalability, and automation are central to the culture. You will take ownership of new features, lead technical discussions, and … microservices-based environment. Expect greenfield projects, cutting-edge technology, and the chance to help shape the evolution of a platform used by thousands of customers. The Role As a Senior .NET Software Engineer, you will play a key role in both development and design, responsible for: Building and maintaining scalable backend services using .NET 7/ More ❯

Senior Full-Stack Software Engineer -London (3 days a week) -up to 125K + options An early-stage B2B SaaS company seeks a Lead Software Engineer to join their London based team. The role requires significant experience across Full-stack Engineering in addition to experience leading software engineers. The company is an AI-first … worked with multiple languages and has an open mind to finding the best technologies to solve their customers problems. About you : Were looking for a hands-on Full-Stack Software Engineer who has experience leading teams of engineers within early-stage and scale-up technology companies, ideally in the B2B or SaaS categories. You will have experience in … Infrastructure (CI/CD pipelines, cloud) The company requires you to work in their office 3-days a week and cannot offer sponsorship. This is an equal opportunity employer. Senior Full-Stack Software Engineer More ❯

Senior Software Engineer (Contract) Team: Digital Workplace Experience Contract: 612 months IR35 Status: OUTSIDE At Nandos , were not just about PERi-PERi chicken were about people, purpose, and passion. We believe that technology should bring warmth, connection, and joy to every Nandoca (thats what we call everyone who works here). Our Digital Workplace Experience Team is … on a mission to create beautifully simple, empowering digital tools that help our teams across restaurants and Central Support thrive every day. Were looking for a Senior Software Engineer (React Native + Node.js) who shares our values and wants to make meaningful impact creating tools that support real people, not just users. What youll be doing As More ❯

in our second year, we have ambitious growth plans and are searching for the best and brightest minds from across tech and finance to help us achieve our aim. Senior Software Engineer We are seeking a highly experienced and results-oriented Senior Software Engineer to join our growing team. This is a critical role … the team, identifying areas for improvement and driving innovation. Problem Solving: Tackle complex technical challenges and develop creative solutions. Shipping Products: Demonstrate a proven track record of successfully shipping software products to production. Requirements Extensive Software Engineering Experience: A minimum of 5+ years of professional software engineering experience, with a demonstrable track record of delivering high-quality … software products. Strong Python Skills: Excellent proficiency in Python programming. Focus on Code Quality: A deep understanding of software engineering principles and a passion for writing clean, well-tested, and maintainable code. Product Delivery Experience: Demonstrated experience of successfully taking software projects from conception to production. Be prepared to discuss specific examples during the interview process. Problem More ❯

Senior Full Stack Engineer/Technical Lead - Series A/B FinTech Scale-Up This is a fantastic opportunity to join a fast-growing, well-funded fintech and be part of our journey as we continue to develop and scale our distributed financial risk platform. We have multiple roles open and this would suit either a mid/… senior-level engineer looking for a new challenge, or a senior engineer looking to move into a technical lead role. Location: London (Hybrid 5-minute walk from London Bridge Station) About BondAval Founded in 2020, BondAval is a fast-growing fintech transforming B2B credit with innovative, technology-enabled solutions, serving global blue-chip clients across the … Octopus Ventures, Tallis Capital, Expa and Dawn Capital, alongside Angel Investors like Tom Blomfield (founder of Monzo) and Carlos Cadenas (Index Ventures, GoCardless, Skyscanner). The Role: Full Stack Engineer/Technical Lead We are looking for multiple (Mid-Senior-Lead) Full Stack/Back End Engineers to join our high-calibre engineering team. You will design, build More ❯

Senior Senior Engineer Up to 90k We are partnered with a high-growth, VC-funded Data Intelligence platform. They are looking for passionate, dynamic engineers with start-up experience. Details: Full Stack Environment: TypeScript, Node.js, React (Redux/Context API). A role focusing on full-stack architecture with some Data Pipelining. Location: Paddington, 3 days a More ❯

Are you interested in working in Tech for Good? Have you got experience working with Kotlin, or are keen to work with Kotlin? Principal Software Engineer Clean Energy for EV Charging Up to 150k + bonus + benefits Hybrid in London 2 days per week Weve just partnered with an industry leading GreenTech, on a mission to transition … through providing affordable and accessible green energy for the charging of electric vehicles. Due to exciting projects in the pipeline, they are looking to grow their team with Principal Software Engineers who have experience in the following: Kotlin software development (They are also open to Core Java experience, as long as you are happy to work with Kotlin … days a week If youre interested in working with new technologies while also making a difference to the world, positively impacting through technology, apply now for this fantastic Principal Software Engineer opportunity! Please note : Due to compliancy reasons, we will only be able to consider applications based in and eligible to work the UK. More ❯

We are looking to speak with Senior Software Engineers for our client, a growing SaaS company. Key Responsibilities: Design and Architect scalable, reliable, and high-performance services and APIs. Write clean, optimised, and maintainable code primarily in TypeScript within an AWS cloud environment. Lead technical reviews and drive best engineering practices across the team (testing, CI/CD … documentation). Collaborate cross-functionally with Product Managers and Design to translate business requirements into technical solutions. Key Requirements: 5+ years of professional experience in software development, with 2+ years in a Senior capacity within a fast-paced SaaS or tech environment. Proven experience designing and deploying applications in a microservices/distributed architecture. More ❯

to consider your options for 2026. Demand is high, secure yourself a move in a candidate-driven market! Fortice supports several NatSec domain suppliers and has various opportunities for Software and Data Engineers across SFIA grades, with demonstrable experience developing and supporting cutting-edge, mission-critical applications. As you may have felt, there is a drive to return to More ❯

a hybrid role where you'll be spending 2/3 days a week onsite in London What youll bring: Significant professional experience (e.g., 5+ years) in full-stack software development. Strong proficiency in Python for backend development. Experience with modern frontend frameworks (e.g., React, Vue, Angular). Solid understanding of database technologies (e.g., PostgreSQL, MySQL) and data modeling. More ❯

Job Opportunity: Backend .NET Developer Contract Type: Permanent Location: London On-site full-time Salary: 90,00095,000 DOE Were working with a privately held group with a strong presence in the commercial property sector, known for delivering high-quality More ❯