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## Job details - Location: The City, Central London - Work mode: Onsite - Employment type: Full-time (Not an internship) - Salary: GBP 95,000 per year ## Role overview Client Server is hiring a Senior Python Developer with expertise in FastAPI, SQL, and Databricks to join a fast-growing global Insurance Underwriting technology provider in Central London. This hands-on backend role focuses on building and scaling a complex SaaS calculation platform serving the rapidly expanding Cyber Security insurance market. You'll work with modern data-centric technologies to deliver high-performance solutions for enterprise clients. ## Job details This is a Full-time, Onsite position based in The City, Central London. The salary is up to £95,000 plus bonus. You'll be part of a senior engineering team developing mission-critical underwriting systems that process large-scale data for global insurance operations.

## Job details - Location: The City, Central London - Work mode: Onsite - Employment type: Full-time (Not an internship) - Salary: GBP 85,000 per year ## Role overview Client Server is hiring a Senior Front End Engineer with strong JavaScript and React expertise to join their team in Central London. This role is ideal for developers experienced in start-up or small business environments who embrace AI-assisted development workflows. The position offers a competitive salary of £85,000 and the opportunity to work on innovative projects using modern front-end technologies. ## Job details This is a full-time, onsite position based in The City, Central London. The role requires strong object-oriented programming skills, proficiency with AI tools like Claude, and a solid foundation in computer science fundamentals including data structures and design patterns. Candidates should be collaborative team players with excellent communication skills who thrive in fast-paced, agile environments.

## Job details - Location: London, UK - Work mode: Onsite - Employment type: Full-time (Not an internship) - Salary: GBP 95,000 per year ## Role overview Client Server is hiring a Senior Python Developer with expertise in FastAPI, SQL, and Databricks to join a fast-growing global Insurance Underwriting technology provider in London. This hands-on backend role focuses on building and scaling a complex SaaS calculation platform serving the rapidly expanding Cyber Security insurance market. The position offers excellent progression opportunities for data-centric engineers who want to work on sophisticated, high-impact systems. ## Job details This is a Full-time, Onsite position based in London, UK. The salary is £95,000 per year plus performance bonus. You will work with cutting-edge technologies including FastAPI for API development, SQL for data manipulation, and Databricks for large-scale data processing. The role requires strong backend engineering skills and a passion for building scalable, data-driven insurance technology solutions.

## Job details - Location: The City, Central London - Work mode: Onsite - Employment type: Full-time (Not an internship) - Salary: GBP 85,000 per year ## Role overview Client Server is hiring a Senior Front End Engineer with strong JavaScript and React expertise to join their team in Central London. This full-time, onsite role offers £85,000 per year and focuses on building modern web applications using AI-assisted development workflows. The position suits engineers from start-up or small business backgrounds who value collaboration and clean code architecture. ## Job details This is a full-time, onsite position based in The City, Central London. The salary is £85,000 per year (GBP). You will work with cutting-edge AI tools like Claude to accelerate development, apply computer science fundamentals to solve complex problems, and contribute to a dynamic engineering culture that values communication and teamwork.

## Job details - Location: The City, Central London - Work mode: Onsite - Employment type: Full-time (Not an internship) - Salary: GBP 85,000 per year ## Role overview Client Server is seeking a Senior Front End Developer with expertise in React and JavaScript to join their team in Central London. The role requires strong technical skills in front-end development, including object-oriented programming, data structures, and design patterns. You will collaborate with cross-functional teams in a dynamic start-up environment, contributing to technical decisions and maintaining high-quality code. ## Job details This Full-time position in Central London offers a salary of £85,000 per year. The role is Onsite and requires experience in start-up or small business environments. Candidates must hold a STEM degree and demonstrate excellent communication skills in technical discussions.

## Job details - Location: Long Ditton, Surbiton - Work mode: Onsite - Employment type: Full-time (Not an internship) - Salary: GBP 40,000 - 70,000 per year ## Role overview Client Server, a tech startup in Surbiton, is seeking a Senior Python Developer to design and build Greenfield, data-centric applications. This role involves working on complex systems and data-intensive solutions within a fast-moving startup environment. ## Job details This Full-time, Onsite position in Long Ditton, Surbiton offers a salary of £40,000 - £70,000 per year. The ideal candidate will thrive in a small team setting, delivering impactful software solutions for scientific applications.

## Role overview Join a global Asset Manager with billions under management as a Backend Software Engineer on a 12-month Fixed Term Contract. You'll design, develop, and implement robust applications for investment technology platforms. The role requires full-stack expertise with a product-driven mindset to support mission-critical financial systems. The successful candidate will collaborate with cross-functional teams to build scalable solutions using C#, Python, AWS, and SQL while adhering to Infrastructure as Code principles.

## Role overview Join a HealthTech startup transforming patient care through innovative technology. As a Backend Software Engineer, you'll develop scalable systems using Java/Kotlin on AWS to improve healthcare record accessibility and collaboration. The role offers hybrid working (East London, London) with competitive compensation up to £120k. The company was founded by Cambridge University alumni with a mission to advance social care through complex technical solutions.