7 of 7 Client/Server Jobs in the North East

business, demonstrating engineering excellence to build high-performance solutions that underpin millions of transactions every day. Role We’re seeking a Senior Software Engineer with strong expertise in C# / .NET and modern JavaScript frameworks (React, TypeScript) to join our product engineering team. You’ll design and implement scalable, secure, and high-performance systems for a global trading platform … collaborating closely with product, operations, and QA teams. Key responsibilities include: Building and optimising real-time client / server architectures. Driving innovation through automation and best practices. Mentoring junior developers and conducting code reviews. Contributing to agile processes and CI / CD pipelines. Responding to critical technical issues and ensuring system reliability. This is … requiring 3 days per week in our Newcastle city centre office, so locally based candidates are preferred. Person Candidates will need; Excellent development skills, preferably 5+ years in C# / .net (including multithreading), and experience in React / TypeScript. Experience in capital markets / derivatives trading or similar would be highly beneficial. More generally exposure to the More ❯

goals, including combat, traversal, and social systems. Must-Haves: 5+ years of experience in network programming for games, including shipping multiplayer titles in Unreal Engine. Deep understanding of TCP / IP, UDP, sockets, NAT traversal, packet fragmentation, and latency mitigation techniques. Proficiency in C++, with strong understanding of memory / performance constraints in networked systems. Solid grasp of … client-server architectures, replication strategies, and packet serialization / compression. Hands-on experience with Unreal Engine's networking stack, including NetDriver, replication graphs, and gameplay-specific networking. Proficiency in debugging and profiling tools such as Unreal Insights, Wireshark, netstat, perf, etc. Familiarity with authentication, matchmaking, and session management systems. Experience working on MMO or large … scale multiplayer games. Strong understanding of network infrastructure (switches, routers, VLANs, firewalls) and their impact on real-time performance. Comfortable working in Linux, and familiar with Git and / or Perforce. Nice-to-Haves: Experience with large-scale server orchestration and hosting systems (e.g., Docker, Kubernetes, Azure). Familiarity with mesh networking or custom replication strategies beyond More ❯

Full Stack Developer / Engineer (.Net Core AWS React) Sunderland / WFH to £55k Join a growing games and gambling platform as a Full Stack Developer, building real-time payment systems and integrations that handle high transaction volumes. You'll work across the full stack-primarily backend with C# .Net Core, plus frontend with JavaScript / React … development using JavaScript, TypeScript or React Collaborate in an Agile team, inputting into technical decisions and mentoring others Work on cloud based infrastructure and integrations (AWS, Docker, Terraform) Location / WFH: There's a hybrid work from home policy with 2-3 days a week; when you're in the office you'll be collaborating with fellow technologists in … Core backend development experience You have experience of building scalable, reliable and secure web applications using modern techniques You have experience of implementing frontend applications and have some JavaScript / TypeScript or React experience You have a good knowledge of AWS You're collaborative with great communication, mentoring and leadership skills What's in it for you: As a More ❯

Full Stack Developer / Engineer (.Net Core AWS React) Sunderland / WFH to £55k Join a growing games and gambling platform as a Full Stack Developer, building real-time payment systems and integrations that handle high transaction volumes. You'll work across the full stack-primarily backend with C# .Net Core, plus frontend with JavaScript / React … development using JavaScript, TypeScript or React Collaborate in an Agile team, inputting into technical decisions and mentoring others Work on cloud based infrastructure and integrations (AWS, Docker, Terraform) Location / WFH: There's a hybrid work from home policy with 2-3 days a week; when you're in the office you'll be collaborating with fellow technologists in … Core backend development experience You have experience of building scalable, reliable and secure web applications using modern techniques You have experience of implementing frontend applications and have some JavaScript / TypeScript or React experience You have a good knowledge of AWS You're collaborative with great communication, mentoring and leadership skills What's in it for you: As a More ❯

Graduate Software Engineer / Developer *Newcastle onsite* £33k+ - Start March 2026 Are you a bright, ambitious technologist with a top class Computer Science degree looking for an opportunity to join a tech start-up? You could be progressing your career at a start-up Investment Management firm that have secure backing and an established Hedge Fund client … Algorithms You're excited to join a start-up in a role that you can shape and influence What's in it for you: As a Graduate Software Engineer / Developer you will earn a competitive bonus and benefits package: Starting salary of £33,000 Bonus 25 days holiday Bupa healthcare Generous pension contribution Continuous career development opportunities Social … team atmosphere with a range of events and early finish for drinks on Fridays at the onsite bar Apply now to find out more about this Graduate Software Engineer / Developer (Computer Science C# .Net) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually More ❯

Lead Software Engineer / Developer (Python TypeScript API) Newcastle onsite to £150k Are you a technology leader, who enjoys liaising with clients, looking for a new opportunity? You could be joining a scaling FinTech within the consulting division of the Newcastle office. As a Lead Software Engineer you'll design and implement the logic behind core applications, build APIs … and microservices that handle data processing, business rules and third-party integrations and oversee the configuration and upkeep of secure, reliable server environments. You'll work closely with internal teams and customers to gather detailed requirements through meetings and workshops and help shape the product vision and roadmap by offering technical insight and feasibility guidance, remaining hands-on … employees walk or cycle in (onsite showers available!). About you: You have achieved a minimum 2.1 BSc in Computer Science or similar technical discipline from a top tier / Russel Group university, backed by A's at A-level You have strong software engineering experience with Python, TypeScript, RESTful APIs, Vue.js, PostgreSQL, CI / CD, Cloud, DevOps More ❯

Lead Software Engineer / Developer (Python TypeScript API) Newcastle onsite to £150k Are you a technology leader, who enjoys liaising with clients, looking for a new opportunity? You could be joining a scaling FinTech within the consulting division of the Newcastle office. As a Lead Software Engineer you'll design and implement the logic behind core applications, build APIs … and microservices that handle data processing, business rules and third-party integrations and oversee the configuration and upkeep of secure, reliable server environments. You'll work closely with internal teams and customers to gather detailed requirements through meetings and workshops and help shape the product vision and roadmap by offering technical insight and feasibility guidance, remaining hands-on … employees walk or cycle in (onsite showers available!). About you: You have achieved a minimum 2.1 BSc in Computer Science or similar technical discipline from a top tier / Russel Group university, backed by A's at A-level You have strong software engineering experience with Python, TypeScript, RESTful APIs, Vue.js, PostgreSQL, CI / CD, Cloud, DevOps More ❯