51 to 75 of 103 Client/Server Jobs in the UK

Senior C# Developer / Software Engineer (.Net Core React AWS) Sunderland / WFH to £70k Opportunity to progress your career in a senior, hands-on role at a at a growing games / gambling site, whilst enjoying a range of benefits and perks. What's in it for you: Competitive salary to £70k + quarterly bonus Holiday … integrations that handle large volumes of transactions. You'll have a focus on backend C# .Net core but will have exposure across the full tech stack through to JavaScript / React within an AWS cloud based environment with Docker, Terraform (IaC), TeamCity, SQL and Redis; you'll gain exposure to a wide range of technology and will be able … to input into technical discussions within a collaborative Agile team. 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 a relaxed environment in awesome custom built offices in Sunderland with a range of facilities and perks including More ❯

Full Stack Developer / Engineer (C# TypeScript AWS) Sunderland / WFH to £55k Opportunity to progress your career in a hands-on Full Stack Developer role at a at a growing games / gambling site, whilst enjoying a range of benefits and perks. As a Full Stack Developer you'll build captivating full stack web applications across … TeamCity, SQL and Redis; you'll gain exposure to a wide range of technology and will be able to input into technical discussions within a collaborative Agile team. 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 … web applications using modern techniques You have experience of implementing frontend applications You're collaborative with great communication skills What's in it for you: As aFull Stack Developer / Engineer you will receive a competitive package: Competitive salary to £55k + quarterly bonus Holiday purchase scheme, plus an extra day for every your there (up to 5) Pension More ❯

Senior Software Engineer / Full Stack Developer (.Net Core JavaScript React) Leatherhead to £70k Do you enjoy working with a range of tech across the full stack? You could be joining one of Britain's largest and longest standing Microsoft partners and technology consultancies, working on a range of projects and progressing your career. As a Senior Software Engineer … you'll join a small team, designing and developing a range of applications with a focus on backend development (70 / 30), for eCommerce clients. You'll be using a range of modern technologies including C# .Net Core, JavaScript / TypeScript and React within a DevOps, Azure, SaaS environment. There currently breaking up monolith applications into microservices. You … ll be able to lead stand-ups, discuss ideas, reason about trade-offs and ensure deadlines are met; with potential to move into a leadership role if desired. Location / WFH: There's a hybrid work from home policy with three days a week in the Leatherhead office (just off M25 or about 10 minute walk from the station More ❯

Backend Software Engineer / Developer (Linux SQL C++17) London / WFH to £110k Global-leading FinTech is seeking a senior Backend Software Engineer to take ownership of strategic enhancements on their core platform, as well as directly on bespoke client projects. The organisation is a pioneer in the field of cross-asset securities and derivatives post … solutions for peak operational efficiency and optimum business performance for their clients. This is a great opportunity to accelerate your career alongside established business and technology leaders, and gain / deepen your finance experience. As a Backend Software Engineer, you'll be responsible for designing and building unique technical solutions, meeting user requirements and contributing to the evolution of … environment, but you will be granted a great deal of autonomy across the full development lifecycle, influencing key technical decisions and working with a highly collaborative, experienced team. Location / WFH: You'll join colleagues in the London office three days a week with flexibility to work from home the other two days. About you: You have strong C++ More ❯

Software Engineer / Front End Developer (TypeScript React Native AI) London / WFH to £65k Want to work on intellectually and technically challenging AI systems at the cutting edge of what is possible, whilst learning and collaborating with an amazing team and enjoying flexible working and a range of other perks? You could be progressing your career as … on front end work alongside a talented team contributing ideas, collaborating with designers and prototyping new features. There's a modern tech stack, you'll be mainly using JavaScript / TypeScript and React but will be able to pick new technologies and skills up on the job. Location / WFH: You'll be joining a friendly and supportive … skills You are a passionate technologist, keep up to date with the latest innovations and learn new things You have solid knowledge of software engineering principles, Agile practices, CI / CD and ideally have experience within a cloud environment (AWS preferred) You are a bright, proactive individual and a strong problem solver with commercial acumen What's in it More ❯

Software Engineer / Front End Developer (TypeScript React Native AI) London / WFH to £65k Want to work on intellectually and technically challenging AI systems at the cutting edge of what is possible, whilst learning and collaborating with an amazing team and enjoying flexible working and a range of other perks? You could be progressing your career as … on front end work alongside a talented team contributing ideas, collaborating with designers and prototyping new features. There's a modern tech stack, you'll be mainly using JavaScript / TypeScript and React but will be able to pick new technologies and skills up on the job. Location / WFH: You'll be joining a friendly and supportive … skills You are a passionate technologist, keep up to date with the latest innovations and learn new things You have solid knowledge of software engineering principles, Agile practices, CI / CD and ideally have experience within a cloud environment (AWS preferred) You are a bright, proactive individual and a strong problem solver with commercial acumen What's in it More ❯

Lead Software Engineer / Team Lead Manchester / WFH to £80k Are you a hands-on technical leader with strong Java skills? You could be working on complex and interesting systems using the latest technology within a diverse, supportive environment whilst enjoying a range of perks and continual learning opportunities at a global games software house. What's … time in sports betting applications. This is an excellent opportunity for a hands-on leader who enjoys balancing technical delivery with team development and collaboration, with approximately a 50 / 50 split between hands-on architecture and coding and people management (coaching, mentoring). Collaborating closely with the Product Owner, you'll oversee the full delivery lifecycle, ensuring that … team and wider organisation. A central part of this role will be creating a developer-friendly environment that allows individuals to focus, innovate and perform at their best. Location / WFH: You'll join the team in Central Manchester three days a week with flexibility to work from home twice a week. About you: You have strong backend software More ❯

ll collaborate with development, DevOps and data engineering on various initiatives and champion security and compliance within the platform to adhere to GDPR, ISO27001 and data governance frameworks. Location / WFH: There's a remote first policy, you could be based anywhere in the UK but must be British citizen or hold the right to work in the UK. … have strong experience of architecting and operating large scale systems on AWS, ideally within high-availability or regulated environments You have a strong knowledge of core AWS services (ECS / EKS, EC2, S3, RDS / Aurora, CloudWatch, IAM, VPC, Lambda, Terraform / CloudFormation) You have strong Java coding skills and a working knowledge of other languages (Python … automation You have a strong understanding of microservices architecture, event-driven design and integration patterns You have experience of designing and managing containerised environments You have experience with CI / CD pipeline design using GitHub Actions and a good working knowledge of Infrastructure-as-Code (Terraform), observability and monitoring tools You have a good knowledge of security architecture, identity More ❯

Senior C++ Developer / Software Engineer (Linux SQL C++17) London / WFH to £110k Global-leading FinTech is seeking a Senior C++ Developer to take ownership of strategic enhancements on their core platform, as well as directly on bespoke client projects. The organisation is a pioneer in the field of cross-asset securities and derivatives post … solutions for peak operational efficiency and optimum business performance for their clients. This is a great opportunity to accelerate your career alongside established business and technology leaders, and gain / deepen your finance experience. As a Senior C++ Developer, you'll be responsible for designing and building unique technical solutions, meeting user requirements and contributing to the evolution of … environment, but you will be granted a great deal of autonomy across the full development lifecycle, influencing key technical decisions and working with a highly collaborative, experienced team. Location / WFH: You'll join colleagues in the London office three days a week with flexibility to work from home the other two days. About you: You have strong C++ More ❯

Lead C# Developer / Backend Software Engineer (C# .Net) Newcastle onsite to £150k Do you have expertise with backend C# combined with strong technical leadership skills? You could be joining a well-funded Fintech scale-up that is establishing a technical centre of excellence in the North East. As a Lead C# Developer / Backend Software Engineer you … 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 technical leadership skills You have expertise with modern C# .Net Core, Python skills would also be … Algorithms You're excited to join a scaling company in a role that you can shape and influence What's in it for you: As a Lead C# Developer / Backend Software Engineer you will receive a competitive package: Salary to £150k + Bonus 25 days holiday Bupa healthcare Generous pension contribution Continuous career development opportunities Social team atmosphere More ❯

Software Engineer / Full Stack Developer (C# .Net Core AWS JavaScript) St Albans / WFH to £100k Opportunity to progress your career in a senior hands-on role at a technology driven trading company that invest in Sports betting markets, with a flat structure where you will get your voice heard and can make a real impact on … systems within a microservices environment (300 services). You'll be working with a modern tech stack using C# .Net Core, AWS, Kubernetes, Kafka, Redis and TypeScript / Angular; using the right tool for the job, you'll be able to pick up new technologies and make recommendations for improvements. WFH Policy: You'll join colleagues in … enjoy collaborating, learning new things and sharing knowledge You are degree educated in Computer Science or closely related discipline Apply now to find out more about this Software Engineer / Developer (C# .Net Core AWS JavaScript) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and More ❯

Senior C# Developer / Software Engineer (C# .Net) London onsite to £150k Opportunity to progress your career in a senior, hands-on C# Developer role at a global Asset Manager with c$3 million under management. As a Senior C# Developer within the trading engine team you'll collaborate to design and develop real-time trading systems, you'll … basis, Monday to Friday. About you: You have expertise with C# .Net, ASP.Net development You have a strong knowledge of databases (SQL or Oracle) You're comfortable with JavaScript / React You have a thorough knowledge of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms 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 C# Developer / Software Engineer 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 More ❯

Senior Software Engineer / Developer (C# .Net) *Newcastle onsite* to £130k+ Are you a Senior Software Engineer looking to escape the hustle and bustle of London and relocate to somewhere with stunning scenery and a better quality of life (there's also great restaurants and bars!)? You could be joining a rapidly scaling FinTech start-up based in Newcastle … 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 world top ranked / Russel Group university, backed by A*s and As at A-level You're a technologist who enjoys collaborating and problem solving, working on complex, distributed systems You have … must be a UK citizen or hold the right to work in the UK (no visa sponsorship available) What's in it for you: As a Senior Software Engineer / Developer you will earn a competitive package: Salary (to £130k, negotiable) Bonus 25 days holiday Bupa healthcare Generous pension contribution Continuous career development opportunities Social team atmosphere with a More ❯

Senior C# Developer / Backend Software Engineer (C# .Net Core) *Newcastle onsite* to £130k+ Are you a backend focused C# Developer with a strong academic background, looking to take the next step in your career? This is an opportunity to work on complex, high-impact systems at a growing FinTech scale-up with solid financial backing, a major Hedge … 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're a technologist who enjoys collaborating and problem solving, working on complex, distributed systems You have expertise with … Algorithms You're excited to join a start-up in a role that you can shape and influence Apply now to find out more about this Senior C# Developer / Backend Software Engineer (C# .Net Core) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and More ❯

Graduate Software Engineer / Developer *Newcastle onsite* £33k+ - Start March or September 2026 Are you a bright, ambitious technologist with a top class education looking for an opportunity to join a tech start-up? You could be progressing your career at a rapidly growing Fintech that have secure backing and an established Hedge Fund client as a … 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 ❯

Full Stack JavaScript Developer / Engineer (JavaScript Vue.js Node) London to £80k Are you a collaborative JavaScript technologist? You could be progressing your career as a Full Stack JavaScript Developer at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral … for the job as well as own your own DevOps and deployment. There's an emphasis on getting stuff done and immediate business impact, alongside longer term strategy. Location / WFH: There's a hybrid work from home model with three days a week in the Hammersmith office and the other two work from home. When in the office … and free breakfast. About you: You have strong full stack JavaScript development skills and are happy to work on projects that could be weighted either way or a 50 / 50 split You have experience with JavaScript frameworks they use Vue.js but Angular or React experience is fine You also have backend experience with Node, TypeScript and Python You More ❯

Senior Full Stack Developer / Engineer (JavaScript Python API) London to £100k Opportunity to progress your career in a senior, hands-on Senior Full Stack Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company … for the job as well as own your own DevOps and deployment. There's an emphasis on getting stuff done and immediate business impact, alongside longer term strategy. Location / WFH: There's a hybrid work from home model with three days a week in the Hammersmith office and the other two work from home. When in the office … and free breakfast. About you: You have strong full stack JavaScript development skills and are happy to work on projects that could be weighted either way or a 50 / 50 split You have experience with JavaScript frameworks they use Vue.js but Angular or React experience is fine, you will also have experience with Python, Node.js and TypeScript You More ❯

Senior Full Stack Developer / Engineer (JavaScript Python API) London to £100k Opportunity to progress your career in a senior, hands-on Senior Full Stack Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company … for the job as well as own your own DevOps and deployment. There's an emphasis on getting stuff done and immediate business impact, alongside longer term strategy. Location / WFH: There's a hybrid work from home model with three days a week in the Hammersmith office and the other two work from home. When in the office … and free breakfast. About you: You have strong full stack JavaScript development skills and are happy to work on projects that could be weighted either way or a 50 / 50 split You have experience with JavaScript frameworks they use Vue.js but Angular or React experience is fine, you will also have experience with Python, Node.js and TypeScript You More ❯

Senior Data Engineer (SQL BigQuery GCP) London / WFH to £110,000 Are you a data technologist with Media Streaming experience? You could be progressing your career in a senor, hands-on role at one of Europe's most successful streaming and social media platforms. What's in it for you: Salary to £110k Employee stock options plan Flexible … rich metadata. You'll also build and implement APIs and data services to expose the data to other teams across the business and work with IaC (Terraform) and CI / CD pipelines for deployment and automation. Location / WFH: You'll be able to work from home / remotely fulltime, with the caveat that'll join the … database knowledge You can code with Golang, Python or Scala You have experience with Google BigQuery You have a good knowledge of event-driven architectures and messaging systems (Pub / Sub, Kafka) You have experience of deploying and managing services in cloud environments, GCP preferred, AWS also fine You're collaborative with fluent English language skills You are degree More ❯

Senior Software Engineer / Back End Developer (C# .Net Core) *Newcastle onsite* to £130k+ Are you a back end focused Software Engineer with a strong academic background, looking to take the next step in your career? This is an opportunity to work on complex, high-impact systems at a growing FinTech scale-up with solid financial backing, a major … 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're a technologist who enjoys collaborating and problem solving, working on complex, distributed systems You have expertise with … Algorithms You're excited to join a start-up in a role that you can shape and influence Apply now to find out more about this Senior Software Engineer / Back End Developer (C# .Net Core) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and More ❯

Staff Engineer / Developer (Full Stack Python React) Cambridge to £70k Do you enjoy taking ownership and working with a range of technology across the full stack on greenfield projects? You could be progressing your career as a founding member of a growing "tech for good" start-up that is using AI technology to ensure compliance and efficiencies within … work closely with the founders and a small technology team to design and develop scalable end-to-end solutions working across the full software development lifecycle through to CI / CD and deployment to Azure. You'll be mainly working with Python and TypeScript, collaboratively problem solving and promoting best practices. Location / WFH: You'll join the … discipline preferred What's in it for you: Salary to £70k Equity Impactful role with excellent career growth opportunities Apply now to find out more about this Staff Engineer / Developer (Full Stack Python React) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually More ❯

Staff Engineer / Developer (Full Stack Python React) Cambridge to £70k Do you enjoy taking ownership and working with a range of technology across the full stack on greenfield projects? You could be progressing your career as a founding member of a growing 'tech for good' start-up that is using AI technology to ensure compliance and efficiencies within … work closely with the founders and a small technology team to design and develop scalable end-to-end solutions working across the full software development lifecycle through to CI / CD and deployment to Azure. You'll be mainly working with Python and TypeScript, collaboratively problem solving and promoting best practices. Location / WFH: You'll join the … discipline preferred What's in it for you: Salary to £70k Equity Impactful role with excellent career growth opportunities Apply now to find out more about this Staff Engineer / Developer (Full Stack Python React) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually More ❯

Backend Software Engineer / Developer (AI) Knutsford onsite to £130k Are you a technologist with a strong knowledge of AI and its practical uses within software engineering? You could be joining a Cybersecurity 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 … You have strong business acumen You believe in producing quality code and have experience with TDD and Pair Programming 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 Backend Software Engineer / Developer you will earn a highly competitive package including: Salary to £130k 8% pension contribution Life Assurance and Income Protection Enhanced maternity / paternity packages Private Medical care for you and your family including same day GP appointments and prescriptions Flexible working hours More ❯

Backend Software Engineer / Developer (C# .Net SQL) *London onsite* to £180k+ Are you a technologist Backend Software Engineer with a record of academic achievement? You could be progressing your career working on complex and challenging systems at a Hedge Fund with over $17 billion under management. As a Backend Software Engineer you'll collaborate with a team of … high performance streaming compute operations. You'll be equipped with all the latest kit to help you succeed as well as learning from industry experts on world finance. Location / WFH: You'll join the team in fantastic London (Soho) based offices that offer a wide range of facilities including nutritionally balance breakfast, lunch and all day snacks. Please … business acumen, keen to take ownership and lead projects You're collaborative, enjoy problem solving and sharing ideas What's in it for you: As a Backend Software Engineer / Developer you will earn a competitive package: Salary to £180k Significant bonus earning potential Fund performance share Personal training budget and mentoring Family friendly benefits that include unlimited emergency More ❯

React Developer / Front End Engineer (React v19 TypeScript) London / WFH to £95k Do you have expertise with React? You could be progressing your career at a Hedge Fund with complex work and substantial bonus earning potential. As a React Developer you'll join a globally distributed team to develop engaging and simple user interfaces across all … internal business systems. You'll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance. Location / WFH: You'll join colleagues in the impressive Central London office with flexibility to work from home twice a week. About you: You have strong Front End development skills with … communication skills You are degree educated, having achieved a 2.1 or above in Computer Science or similar technical discipline What's in it for you: As a React Developer / Front End Engineer you will receive a competitive package: Salary to £95k Bonus Pension Self development and career progression opportunities Apply now to find out more about this React More ❯