East London, London, United Kingdom Hybrid / WFH Options
Client Server
Software Developer in Test (C# or TypeScript) London / WFH to £85k Do you have C# or TypeScript coding skills combined with a detail orientated mindset? You could be progressing your career as a Software Developer in Test, working on complex and challenging systems as part of a supportive team with regular learning opportunities and flexible working at a … ll be using a variety of automation tools and coding with C# or TypeScript, working across the full test lifecycle, defining and automating acceptance tests and working with CI / CD pipelines as part of an Agile software delivery team. Location / WFH: You can work from home, meeting up with colleagues 2-3 days a week in … you enjoy a range of facilities including large kitchen, café, roof top bar, showers and all the latest kit to work on. About you: You have strong C# and / or TypeScript coding skills You have experience of developing and testing software using Microsoft technologies (.Net, SQL Server, Windows) You have an understanding of CI /More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Software Developer in Test (C# or TypeScript) London / WFH to £85k Do you have C# or TypeScript coding skills combined with a detail orientated mindset? You could be progressing your career as a Software Developer in Test, working on complex and challenging systems as part of a supportive team with regular learning opportunities and flexible working at a … ll be using a variety of automation tools and coding with C# or TypeScript, working across the full test lifecycle, defining and automating acceptance tests and working with CI / CD pipelines as part of an Agile software delivery team. Location / WFH: You can work from home, meeting up with colleagues 2-3 days a week in … you enjoy a range of facilities including large kitchen, café, roof top bar, showers and all the latest kit to work on. About you: You have strong C# and / or TypeScript coding skills You have experience of developing and testing software using Microsoft technologies (.Net, SQL Server, Windows) You have an understanding of CI /More ❯
Shoreditch, Greater London, UK Hybrid / WFH Options
Client Server
Software Developer in Test (C# or TypeScript) London / WFH to £85k Do you have C# or TypeScript coding skills combined with a detail orientated mindset? You could be progressing your career as a Software Developer in Test, working on complex and challenging systems as part of a supportive team with regular learning opportunities and flexible working at a … ll be using a variety of automation tools and coding with C# or TypeScript, working across the full test lifecycle, defining and automating acceptance tests and working with CI / CD pipelines as part of an Agile software delivery team. Location / WFH: You can work from home, meeting up with colleagues 2-3 days a week in … you enjoy a range of facilities including large kitchen, café, roof top bar, showers and all the latest kit to work on. About you: You have strong C# and / or TypeScript coding skills You have experience of developing and testing software using Microsoft technologies (.Net, SQL Server, Windows) You have an understanding of CI /More ❯
excellent choice for clients aspiring to elevate their latest multiplayer titles, enabling scalability in player numbers, maximizing player density, and crafting immersive gameplay experiences. Embedded seamlessly within a client's in-house team, we collaborate harmoniously to turn dreams into reality. Our portfolio boasts groundbreaking games developed in collaboration with major studios worldwide. As a fully remote studio … Excellent C++ programming skills, including proficiency in modern C++ standards (C+ and C+) Deep expertise in common data structures and algorithms (DSA) (e.g. Graph Algorithms) Deep understanding of Client-Server Game Architecture (e.g. Client-side prediction, Server reconciliation, Lag compensation, Entity Interpolation, etc.) Shipped at least one AAA session-based multiplayer title. … the listen-server architecture, the peer-to-peer architecture, and distributed architectures in general. What makes you stand out Familiarity with cross-platform multiplayer game development (PC / Console) Experience with Online Services (e.g. GBaaS solutions (e.g. Azure Playfab, AccelByte AGS), Custom Game Backend Integration / Development, Toxicity Management Platforms, etc.) Experience with one or more More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Backend Software Engineer / Developer (Rust HFT) London / WFH to £180k Do you have expertise with backend software engineering within trading / finance environments? You could be progressing your career in a senior, hands-on Backend Software Engineer at a hugely profitable High Frequency Trading firm that specialise in crypto markets. As a Backend Software Engineer … using Rust. You'll collaborate with a small, talented team, collaboratively problem solving and working on complex and challenging systems with interesting work and huge bonus earning potential. Location / WFH: You'll join the team in Central London with flexibility to work from home twice a week. About you: You have strong backend OOP, multithreaded software engineering experience … will receive a competitive package: Salary to £180k Bonus (c50% of base) Pension Hybrid working Career progression Apply now to find out more about this Senior Backend Software Engineer / Developer (Rust High Frequency Trading) opportunity. Ref: PR / 100228 / B / KS At ClientServer we believe in a diverse More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Rust Developer / Backend Software Engineer (Rust HFT) London / WFH to £180k Do you have expertise with backend software engineering within trading / finance environments? You could be progressing your career in a senior, hands-on Rust Developer at a hugely profitable High Frequency Trading firm that specialise in crypto markets. As a Rust Developer you … using Rust. You'll collaborate with a small, talented team, collaboratively problem solving and working on complex and challenging systems with interesting work and huge bonus earning potential. Location / WFH: You'll join the team in Central London with flexibility to work from home twice a week. About you: You have strong backend OOP, multithreaded software engineering experience … Developer you will receive a competitive package: Salary to £180k Bonus (c50% of base) Pension Hybrid working Career progression Apply now to find out more about this Rust Developer / Backend Software Engineer (Rust High Frequency Trading) opportunity. Ref: PR / 100228 / C / KS At ClientServer we believe in More ❯
West London, London, United Kingdom Hybrid / WFH Options
Client Server
Platform Engineer (Linux Cloud) London / WFH to £120k Are you an infrastructure technologist with a strong knowledge of Linux and public cloud services? You could be progressing your career at a hugely profitable High Frequency Trading firm that specialise in crypto markets. As a Platform Engineer you will join a small team responsible for the 24x7x365 globally distributed … and own performance and process improvements, collaborating closely with the development team on architecture and prioritisation and with the infrastructure team on common infrastructure improvements across the estate. Location / WFH: You'll join the team in Central London with flexibility to work from home twice a week (please note there is an on-call requirement). About you … You have commercial experience as a Platform Engineer, DevOps Engineer or SRE You have strong bash or Python scripting skills You have multi-cloud experience (AWS and / or Azure preferred) You have a strong knowledge of Linux You're collaborative and pragmatic with great communication skills You hold a technical degree What's in it for you: As More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Platform Engineer (Linux Cloud) London / WFH to £120k Are you an infrastructure technologist with a strong knowledge of Linux and public cloud services? You could be progressing your career at a hugely profitable High Frequency Trading firm that specialise in crypto markets. As a Platform Engineer you will join a small team responsible for the 24x7x365 globally distributed … and own performance and process improvements, collaborating closely with the development team on architecture and prioritisation and with the infrastructure team on common infrastructure improvements across the estate. Location / WFH: You'll join the team in Central London with flexibility to work from home twice a week (please note there is an on-call requirement). About you … You have commercial experience as a Platform Engineer, DevOps Engineer or SRE You have strong bash or Python scripting skills You have multi-cloud experience (AWS and / or Azure preferred) You have a strong knowledge of Linux You're collaborative and pragmatic with great communication skills You hold a technical degree What's in it for you: As More ❯
Fitzrovia, Greater London, UK Hybrid / WFH Options
Client Server
Platform Engineer (Linux Cloud) London / WFH to £120k Are you an infrastructure technologist with a strong knowledge of Linux and public cloud services? You could be progressing your career at a hugely profitable High Frequency Trading firm that specialise in crypto markets. Check you match the skill requirements for this role, as well as associated experience, then apply … and own performance and process improvements, collaborating closely with the development team on architecture and prioritisation and with the infrastructure team on common infrastructure improvements across the estate. Location / WFH: You'll join the team in Central London with flexibility to work from home twice a week (please note there is an on-call requirement). About you … You have commercial experience as a Platform Engineer, DevOps Engineer or SRE You have strong bash or Python scripting skills You have multi-cloud experience (AWS and / or Azure preferred) You have a strong knowledge of Linux You're collaborative and pragmatic with great communication skills You hold a technical degree What's in it for you: As More ❯
East London, London, United Kingdom Hybrid / WFH Options
Client Server
AI Research Engineer (LLM Python) London / WFH to £95k Do you have experience with Machine Learning, AI research and Python engineering? You could be progressing your career at a 'Tech for Good' start-up that is using AI models to help people focus on healthy living to extend their life, making personalised health risk assessments and connecting people … improve model performance. You'll join a collaborative team of talented engineers and AI researchers, pushing the boundaries of what is currently possible to enhance people's lives. Location / WFH: You can work from home most of the time, meeting up with colleagues in the London office once a week. About you: You have achieved a BSc or … for Good' start-up in an influential role with excellent career growth opportunities Apply now to find out more about this AI Research Engineer (LLM Python) opportunity. Ref: PR / 100233 / A / KS At ClientServer we believe in a diverse workplace that allows people to play to their strengths and More ❯
Shoreditch, Greater London, UK Hybrid / WFH Options
Client Server
AI Research Engineer (LLM Python) London / WFH to £95k Do you have experience with Machine Learning, AI research and Python engineering? You could be progressing your career at a 'Tech for Good' start-up that is using AI models to help people focus on healthy living to extend their life, making personalised health risk assessments and connecting people … improve model performance. You'll join a collaborative team of talented engineers and AI researchers, pushing the boundaries of what is currently possible to enhance people's lives. Location / WFH: You can work from home most of the time, meeting up with colleagues in the London office once a week. About you: You have achieved a BSc or … for Good' start-up in an influential role with excellent career growth opportunities Apply now to find out more about this AI Research Engineer (LLM Python) opportunity. Ref: PR / 100233 / A / KS At ClientServer we believe in a diverse workplace that allows people to play to their strengths and More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Data Architect / Consultant (DV Clearance) Client travel to £100k Are you a Data Architect / Consultant with active DV Clearance? You could be progressing your career in a senior, hands-on role at a UK based Technical Consultancy that focus on cybersecurity projects. As a Data Architect / Consultant you'll collaborate closely with … be working with enterprise scale systems, developing data strategies and governance frameworks to drive organisational data transformation, across projects end-to-end with a great deal of ownership. Location / WFH: You'll be based on client sites in and around London four days a week with flexibility to work from once a week. About you: You … projects You have experience of establishing data analytics and supporting AI solutions You have a good working experience of AWS (e.g. S3, Kinesis, Glue, Redshift, Lambda and EMR) and / or Azure data services (e.g. ADF, Synapse, Fabric, Azure Functions) You have advanced client and stakeholder management skills What's in it for you: As a Data More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Backend Software Engineer / Developer (Windows C / C++, C#) London to £70k FTC Are you a skilled Backend Software Engineer with strong C++ skills? You could be progressing your career in a senior, hands-on role at a global market data provider whilst enjoying a range of perks and benefits. As a Backend Software Engineer you will … transmission. The platform has been built with C++ and C# deploying to AWS and requires high scalability and low latency - they currently handle 40 billion messages per day. Location / WFH: You'll join colleagues in the City office three days a week with flexibility to work from home the other two days. Please note this is a … month Fixed Term Contract. About you: You have C / C++ development skills on Windows OS You have full software development lifecycle experience You have a good knowledge of networking protocols e.g. TCP / IP, multicast You have a strong grounding in Computer Science fundamentals e.g. multi-threading, OOP, Data Structures, Design Patterns You're collaborative with great More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Data Architect / Consultant (DV Clearance) Client travel to £100k Are you a Data Architect / Consultant with active DV Clearance? You could be progressing your career in a senior, hands-on role at a UK based Technical Consultancy that focus on cybersecurity projects. As a Data Architect / Consultant you'll collaborate closely with … be working with enterprise scale systems, developing data strategies and governance frameworks to drive organisational data transformation, across projects end-to-end with a great deal of ownership. Location / WFH: You'll be based on client sites in and around London four days a week with flexibility to work from once a week. About you: You … projects You have experience of establishing data analytics and supporting AI solutions You have a good working experience of AWS (e.g. S3, Kinesis, Glue, Redshift, Lambda and EMR) and / or Azure data services (e.g. ADF, Synapse, Fabric, Azure Functions) You have advanced client and stakeholder management skills What's in it for you: As a Data More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Graduate C++ Developer / Backend Software Engineer (C++ Linux TCP / IP) Remote UK to £45k Are you a bright, enthusiastic Computer Science graduate with C++ coding skills? You could be progressing your career, working on Greenfield Cyber Security software products and learning from hugely talented team at a rapidly expanding scale-up software house that is developing … in a challenging environment, working on Greenfield C++ projects. You'll be encouraged to learn and continuously improve your skillset, receiving mentoring from an elite team of technologists. Location / WFH: You can work from home most of the time, meeting up with colleagues in the London office once a month / ; quarter. About you: You are degree … educated, 2.1 or above - Computer Science or closely related discipline from a top tier / Russell Group university You have C / C++ coding skills You have a strong understanding of what's happening at low level including Networking and Operating Systems (HTTP, TCP / IP, multicast, UDP) You have good Linux knowledge including low level (Daemon More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
C++ Developer / Backend Software Engineer (Windows C / C++, C#) London to £70k FTC Are you a skilled C++ Developer? You could be progressing your career in a senior, hands-on role at a global market data provider whilst enjoying a range of perks and benefits. As a C++ Developer you will join an Agile team focussed … transmission. The platform has been built with C++ and C# deploying to AWS and requires high scalability and low latency - they currently handle 40 billion messages per day. Location / WFH: You'll join colleagues in the City office three days a week with flexibility to work from home the other two days. Please note this is a … month Fixed Term Contract. About you: You have C / C++ development skills on Windows OS You have full software development lifecycle experience You have a good knowledge of networking protocols e.g. TCP / IP, multicast You have a strong grounding in Computer Science fundamentals e.g. multi-threading, OOP, Data Structures, Design Patterns You're collaborative with great More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Software Developer / Engineer (C++ Mac Extensions EDR) WFH / London to £80k Do you have experience developing and integrating Mac software? You could be progressing your career at a rapidly expanding scale-up software house that is developing a highly complex network cyber security platform; the platform monitors network protocols in real-time, parses the commands and … algorithms and allows customers to detect hackers, malware, data leakage and other malicious activity. As a Software Developer you will focus on enabling the core product, written in C / C++ for Windows and Linux to run on Apple Mac software, using the latest Extensions, tools and API integrations. Location / WFH: You can work from home most … you: You have strong C++ development skills You have experience of integrating software with Apple Mac Extensions and APIs You have a good knowledge of Network Security and EDR / EDTR You have VPN client or security experience You're collaborative with great communication skills You have experience of producing technical documentation You're degree educated in More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Client Server
Software Engineer / Developer (Java AWS React) London / WFH to £110k Are you a technologist looking for an opportunity to be part of something big from the start? You could be progressing your career in an impactful role at a newly established Fintech start-up, set up by a small team of finance and technology entrepreneurs with … You'll collaborate closely with the Lead Engineer, Architect and Product Manager to shape system design, APIs and data models to enable scalable backend logic and clean UI. Location / WFH: You can work from home most of the time, meeting up with colleagues in London; as the company grows there will likely be some in office requirements but … with lots of flexibility. About you: You have strong Java, AWS and Kubernetes skills and also have a good appreciation of user interface / front end development using React or Tailwind CSS You have a strong knowledge of modern software engineering best practices including cloud native applications, microservices and CI / CD You are an advocate of AI More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Software Engineer / Developer (Java AWS React) London / WFH to £110k Are you a technologist looking for an opportunity to be part of something big from the start? You could be progressing your career in an impactful role at a newly established Fintech start-up, set up by a small team of finance and technology entrepreneurs with … You'll collaborate closely with the Lead Engineer, Architect and Product Manager to shape system design, APIs and data models to enable scalable backend logic and clean UI. Location / WFH: You can work from home most of the time, meeting up with colleagues in London; as the company grows there will likely be some in office requirements but … with lots of flexibility. About you: You have strong Java, AWS and Kubernetes skills and also have a good appreciation of user interface / front end development using React or Tailwind CSS You have a strong knowledge of modern software engineering best practices including cloud native applications, microservices and CI / CD You are an advocate of AI More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Front End Developer / Engineer (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 a … advantage. You'll 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 ❯
Central London, London, United Kingdom Hybrid / WFH Options
Client Server
Front End Developer / Engineer (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 a … advantage. You'll 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 ❯
Front End Developer / Engineer (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 a … advantage. You'll 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 ❯
Bloomsbury, Greater London, UK Hybrid / WFH Options
Client Server
Front End Developer / Engineer (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 a … advantage. You'll 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 ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
CTO / Head of Engineering London / WFH to £180k+ Are you a senior technology leader with Wealth Management domain experience? You could be progressing your career in an impactful role at a newly established Fintech start-up, set up by a small team of finance and technology entrepreneurs with a hugely successful track record. As the CTO … / Head of Engineering you will own the technology strategy, designing systems from the ground up using the technology that you choose in conjunction with the Lead Engineer. You'll collaborate closely with the founders to understand goals and design the technology that will form the backbone of the business and establish a high performing technical team. Location / … with excellent leadership, mentoring and stakeholder management skills What's in it for you: Up to £180k Significant stock options Apply now to find out more about this CTO / Head of Engineering opportunity. At ClientServer we believe in a diverse workplace that allows people to play to their strengths and continually learn. We More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
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 ❯