Full Stack Developer / Engineer (C# SQL JavaScript) London / WFH to £85k Are you a data savvy Full Stack Developer with strong C# and SQL skills combined with a good understanding of finance / trading systems? You could be progressing your career and gaining valuable finance experience at a hugely successful Hedge Fund, working on complex and interesting systems with continual learning opportunities. As a Full Stack Developer you'll join a small, Agile team to design, develop and support the Portfolio Management systems. You'll be collaborating with Front Office users and will gain a good understanding of financial trading systems, working with modern tech across the full stack from SQL/Oracle, C# .Net Core on the backend through to Angular and TypeScript on the frontend, with a bias towards backend development. There's a range of projects from a couple of weeks through to longer term over several months. Location / WFH: You'll join colleagues in impressive Central London offices with flexibility to work from home one day a week. About you: You have strong C# .Net skills, ideally including .Net Core You have strong SQL development skills You're highly numerate with a good understanding of mathematics You have a good understanding of finance instruments / trading systems or Front Office environments You also have some front end development skills with technologies such as JavaScript / TypeScript, Angular, React, HTML, CSS and are happy to use Angular going forward You're collaborative with Agile team experience You're degree educated in a STEM discipline What's in it for you: As a Full Stack Developer / Engineer you will earn a competitive package: Salary to £85k Bonus Pension, Life Assurance Health and Dental care Employee Assistance Programme 25 days holiday Continuous training and self development opportunities Apply now to find out more about this Full Stack Developer / Engineer (C# .Net Core SQL JavaScript Angular) 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 all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Backend Software Engineer / Developer (.Net Core AWS) London / WFH to £100k Are you a backend focussed Software Engineer who enjoys collaborating and working on complex systems with cutting edge technology? You could be progressing your career at a highly profitable Hedge Fund whilst enjoying a range of perks and benefits including hybrid working and a sociable team environment. As a Backend Software Engineer you'll join a cross functional Agile product team responsible for high-value business critical trade execution systems. You'll be building systems to manage large datasets which can process updates in real-time with high throughput and low latency; these systems are released with high frequency with technology choices that are continuously evolving. There's a focus on backend development with C# .Net and Kubernetes however you will work across the full stack, using TypeScript, Blazor and React on the client side. You'll take ownership of projects and collaborate with a team of highly skilled engineers as well as business stakeholders, continually learning, assessing new technologies and making recommendations within a flat structure. Location / WFH: You'll be based in fantastic offices in a vibrant area of London with in-house gym and steam room, games room with pool tables and dart boards, library and free high quality catering (breakfast, lunch, dinner) from the onsite chef with flexibility to work from home two days a week. About you: You have strong C# serverside development skills, including .Net Core and multi-threading You have a good knowledge of AWS and Kubernetes The tech stack also includes JavaScript / TypeScript, Blazor and React for client side applications; experience with any of these would be beneficial but you can pick them up on the job You're commercially aware and keen to understand the business impact of what you do You have excellent communication, collaboration and problem solving skills You're degree educated in a STEM discipline, Computer Science preferred, 2.1 or above What's in it for you: Competitive salary, to £100k Pension Private medical care and wellness days Training and conference budget to support your personal development Hybrid working, fully catered in the office plus in-house gym Apply now to find out more about this Backend Software Engineer / Developer (C# .Net Core AWS Kubernetes) 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 all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

C++ Developer / Software Engineer (TMP C++ 20 / 23) London / WFH to £300k+ Do you have expertise with C++ backend development, with experience of low latency trading systems? You could be progressing your career in a senior, hands-on role at a global systematic trading firm. As a C++ Developer you will be a key member of a small, Agile team that is embarking on building a new, low latency, trade execution system from scratch utilising modern C++ (C++ 20 / C++ 23) and Template Metaprogramming techniques. You'll be working across the full development lifecycle including design and architecture through to deployment, collaborating with a range of Investment Management professionals to create cutting edge trading systems. There are many complex technical challenges, you'll be collaborating with a highly talented to solve problems and push what is possible. Location / WFH: You have advanced C++ development skills including C++ 20, STL and Boost You have experience of designing and implementing multithreaded and distributed systems You have experience with Template Meta Programming (TMP) You have a strong knowledge of Linux OS and distributed network architecture, ideally with an understanding of GCC development toolchain You have a good understanding of C++ optimisation You have a thorough knowledge of Computer Science fundamentals such as OOP, Design Patterns, Data Structures You're collaborative with excellent communication skills What's in it for you: As a C++ Developer / Software Engineer you will earn a competitive package: Salary to £300k Significant Bonus Pension Private Healthcare 25 days holiday Opportunity to work on Greenfield systems at the cutting Continual learning and development opportunities Apply now to find out more about this C++ Developer / Software Engineer (Template Metaprogramming) 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 all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Senior C++ Software Engineer / Developer (C++ Linux) London / WFH to PS300k+ Are you a backend focussed Software Engineer with C++ and Linux expertise? You could be progressing your career in a senior, hands-on role at a global systematic trading firm. As a Senior C++ Software Engineer you will design, develop and optimise low latency, high throughput C++ trading systems for high frequency trading platforms. You'll be implementing and maintaining market data feed handlers, order entry systems and execution algorithms with a focus on reducing latency and ensuring the performance and reliability of trading systems. There are many complex technical challenges, you'll be collaborating with a highly talented to solve problems and push what is possible. Location / WFH: You'll join colleagues based in high spec offices with free breakfast and lunch at the onsite restaurant, with flexibility to work from home two days a week. About you: You have advanced C++ development skills including C++ 17, multi-threading, real-time systems and network programming You have experience of working on low latency trading systems within the cryptocurrency space You have a good understanding of C++ optimisation, ideally also have Template Metaprogramming knowledge You have a strong knowledge of Linux OS and distributed network architecture You have a good understanding of AWS You have a thorough knowledge of Computer Science fundamentals such as OOP, Design Patterns, Data Structures You're collaborative with excellent communication skills What's in it for you: As a Senior C++ Software Engineer / Developer (C++ Linux) you will earn a competitive package: Salary to PS300k Significant Bonus Pension Private Healthcare 25 days holiday Opportunity to work on Greenfield systems at the cutting Continual learning and development opportunities Apply now to find out more about this Senior C++ Software Engineer / Developer (C++ Linux) 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 all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

C# Developer / Backend Software Engineer (C# .Net) WFH / London to PS120k Would you like to take ownership, make the technical decisions and remain hands-on with code? You could be joining a small, specialist Hedge Fund with PS1 billion under management. As a C# Developer you'll collaborate with all areas of the business and work on a variety of projects from scaling the existing fundamentals modelling platform to enhancing the newly built trade execution platform, there's a mix of Greenfield and Brownfield development. You'll collaborate with Quants, Analysts and Portfolio Managers to ensure they have the tech solutions they require. Location / WFH Policy: You'll join a small group of accomplished entrepreneurs in North London with flexibility to work from home twice a week. About you: You have advanced C# .Net coding skills You have a good understanding of modern SQL database solutions You have experience of working in small teams and across the full development lifecycle You have strong analysis and problem solving skills You have excellent communication and collaboration skills You are degree educated in Computer Science or closely related discipline What's in it for you: Up to PS120k + bonus Pension (8% non-contributory) Private Medical Insurance Life Assurance Training and career development opportunities Work from Home (x3 days in London office per week) Company retreats such as Winter skiing trips and Summer weekends away Apply now to find out more about this C# Developer / Backend Software Engineer (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 all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Senior Python Software Engineer / Developer London onsite to PS130k Are you a backend technologist who has expertise with Python looking for an opportunity to work on complex and interesting AI based systems? You could be progressing your career at a growing tech start-up as they expand their UK presence (already highly successful in the US); the product is an AI driven intelligent video security that can be integrated to current systems and enables things like searching for particular people and licence plates. As a Senior Python Software Engineer you will be instrumental in helping the company to scale its current platform and have responsibility for large parts of the backend code base. You'll design and implement APIs, databases and data pipelines, taking ownership of delivery of features and debugging issues. You will be the first Python hire within the business, you'll be collaborating with C++ Engineers, the Front End team and Machine Learning Engineers and can shape your role as it progresses and the company continues to grow. Location / WFH: You'll join a small, growing team based in Bank, London onsite five days a week, working hours between 1000 and 1800. About you: You're a skilled Software Engineer / Developer with a thorough knowledge of Computer Science fundamentals such as OOP, Data Structures, Design Patterns You have advanced level Python coding skills You have a good knowledge of databases such as Postgres and Redis You have experience of scaling a product to a large global user base You have experience of building and optimising APIs You're a senior engineer with experience of leading technical projects It would be advantageous to have experience with Edge / IoT computing You're keen to work in a start-up environment where you can make a real impact You are degree educated in Computer Science or similar relevant discipline from a top tier university (Oxbridge / Russel Group) What's in it for you: As a Senior Python Software Engineer / Developer you will earn a competitive package: Competitive salary to PS130k Equity shares Medical, Dental and Optical insurance Continuous career development Opportunity to be a founding member Apply now to find out more about this Senior Python Software Engineer / Developer (AI SaaS Python) 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 all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Senior Java Developer / Software Engineer (Java SQL Networking) to PS140k Are you a Java technologist with strong backend development experience looking for an opportunity to progress your career in a senior, hands-on role? You could be joining a Cyber Security technology company and enjoying a huge range of perks and benefits from continual learning and self-development opportunities (including "buy any book" policy) through to health and well-being, enhanced paternity packages, generous holiday allowance, inclusive social events and much more. As a Senior Java Developer you'll join a small, Agile team using core Java within a TDD environment deploying to AWS. You'll design and develop new features and enhancements across two security product areas, working across the full development lifecycle; you'll be able to input ideas and have your voice heard in a collaborative team environment that encourages knowledge sharing. Location: You'll join colleagues in amazing offices in Cheshire five days a week with a wide range of facilities and an array of perks including: Free lunch daily catered for by the onsite chef A range of afternoon treats and barista style coffee Onsite gym with trainer led classes including karate, yoga and sound bath, shower facilities and of course, all the latest kit to work with About you: You have strong backend core Java development skills You believe in producing quality code and have experience with TDD You have a good knowledge of SQL and Networking (TCP/IP) You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Algorithms, Design Patterns You're collaborative, enjoy problem solving and are keen to pick up new skills What's in it for you: As a Senior Java Developer / Software Engineer you will earn a highly competitive package including: Salary to PS140k 8% pension contribution Life Assurance and Income Protection Enhanced paternity packages Private Medical care for you and your family including same day GP appointments and prescriptions Flexible working hours Charitable donations matching scheme and much more Apply now to find out more about this Senior Java Developer / Software Engineer (Java SQL Networking) 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 all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.