26 to 50 of 55 Permanent Client/Server Jobs in London

Software Engineer / Developer (Elixir Elm TypeScript AWS) London / WFH to £85k Do you enjoy problem solving and working with a range of technologies including functional programming languages? You could be progressing your career in a senior, hands-on Software Engineer role at a successful, profitable energy … full development lifecycle from architecture and design through to implementation. There's a range of technology in the stack, you'll have a 70 / 30 split between backend and frontend development using Elixir, Elm, TypeScript and AWS amongst others. Location / WFH: You'll join the team … PostgreSQL, AWS, Docker You are degree educated in Computer Science or similar STEM discipline, having achieved a 2.1 or above from a Russel Group / Oxbridge university Ideally you will have a good understanding of financial markets What's in it for you: Competitive salary, to £85k Equity Hybrid more »

Java Developer / Backend Software Engineer (Java Kotlin AWS) *Hybrid WFH* to £85k Are you a Java Developer with strong backend development skills? You could be progressing your career working on a financial Tech for Good product in a hands-on role at a scale-up software house. The … learn and use a range of programming languages You're likely to be degree educated, Computer Science preferred Salary & benefits: As a Java Developer / Backend Software Engineer you will earn a competitive salary (to £85k) plus a comprehensive benefits package including: Pension Private healthcare Life Assurance and Income … Protection Tax free childcare Apply now to find out more about this Java Developer / Backend Software Engineer (Java Kotlin AWS) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an more »

Senior .Net Developer / Software Engineer (F# C#) London to £140k+ Do you have expertise with .Net? You could be working on complex and interesting real-time systematic trading systems, with complex problem solving and continual learning and self-development opportunities at a Swiss based Asset Manager that is … new instruments and venues, developing new trading capabilities, all the technology is proprietary with a focus on writing computational, efficient low latency code. Location / WFH: You'll join accomplished colleagues in the London office with flexibility to work from home one day a week (there are also flexible … relevant discipline, having gained a 2.1 or above from a top tier university What's in it for you: As a Senior .Net Developer / Software Engineer you will earn a competitive package: Salary to £140k Bonus (c25%), discretionary 26 days holiday (in addition to Bank Holidays) Pension Interesting more »

Data Developer / Software Engineer (C# .Net F# SQL Data) London to £140k+ Are you a Data Developer with .Net expertise? You could be working on complex and interesting real-time systematic trading systems, with complex problem solving and continual learning and self-development opportunities at a Swiss based … sources into the back test and execution platforms. All the technology is proprietary with a focus on writing computational, efficient low latency code. Location / WFH: You'll join accomplished colleagues in the London office with flexibility to work from home one day a week (there are also flexible … other relevant discipline, having gained a 2.1 or above from a top tier university What's in it for you: As a Data Developer / Software Engineer you will earn a competitive package: Salary to £140k Bonus (c25%), discretionary 26 days holiday (in addition to Bank Holidays) Pension Interesting more »

Lead Backend Software Engineer / Developer (Java SpringBoot AI) London to £95k Are you a technologist Backend Software Engineer with strong Java skills and a keen interest in working on cutting edge Artificial Intelligence? You could be progressing your career at one of the country's leading PropTech sites … with the latest advancements, seeking continual improvement and providing mentoring to other engineers as a valued member of the company's tech community. Location / WFH: You'll join colleagues in the Central London office for two days a week with flexibility to work from home the other three … and critical thinking skills What's in it for you: Salary to £95k Pension Private healthcare including optical and physio Life Assurance Enhanced maternity / paternity packages Travel loan and cycle to work scheme Savings schemes Tax free charity donations Hybrid working (x2 days a week in London) Opportunity more »

Senior Software Engineer / Full Stack Developer (Python React Full Stack) London to £120k Are you a skilled Software Engineer with Python and React skills looking for an opportunity to work on complex and interesting AI based systems? You could be progressing your career as a founding member at … the full stack, contributing to the core product, an AI driven intelligent video security platform with cutting edge capabilities. There's approximately a 70 / 30 split between backend and front end development, you'll design and implement new backend APIs, collaborating with the edge-computing team and build … and have full observability. There's a variety of technical challenges, you'll be problem solving and collaborating, working on ground breaking technology. Location / WFH: You'll join a small, growing team based in Bank, London with flexibility to work from home once a week. About you: You more »

.Net Developer / Software Engineer (F# C# .Net) London to £140k+ Do you have expertise with .Net? You could be working on complex and interesting real-time systematic trading systems, with complex problem solving and continual learning and self-development opportunities at a Swiss based Asset Manager that is … new instruments and venues, developing new trading capabilities, all the technology is proprietary with a focus on writing computational, efficient low latency code. Location / WFH: You'll join accomplished colleagues in the London office with flexibility to work from home one day a week (there are also flexible … other relevant discipline, having gained a 2.1 or above from a top tier university What's in it for you: As a .Net Developer / Software Engineer you will earn a competitive package: Salary to £140k Bonus (c25%), discretionary 26 days holiday (in addition to Bank Holidays) Pension Interesting more »

will directly work with the research team to develop a client-server solution to enable reliable and effective front-end / back-end communication. • The candidate will build on the APIs of AI model to develop the back-end component. • The candidate will directly work … one’s time. • Expert mentoring skills necessary to provide support and constructive performance feedback. • Expert knowledge of the full software development lifecycle: from business / systems analysis, through requirements gathering and functional specification authoring, to development, testing and delivery. • Expert ability to troubleshoot issues and make system changes as more »

represent a highly reputable AAA-rated global gaming studio, that specialises in Unreal Engine game development. Operating as an embedded part of their client's in-house teams, my client seamlessly collaborates with them to bring their visions to life and games to market. They work … passionate individuals, with a culture that values direction and autonomy, resulting in an inspiring and creative work environment. Due to business growth, my client is looking to recruit an Gaming SystemEngineer , with experiencein C++, C# and Gaming systems (Unreal, Unity, Proprietary)in their expanding Engineering team. As an … year of C# Strong debugging and optimisation skills in a multi-threaded, networked environment. Knowledge of game-specific networking concepts, including object replication, client-server and peer-to-peer architectures, server migration, dedicated servers, time synchronisation, prediction, quality of service (QoS), and voice integration. more »

Software Engineer (Python C++ CeFi Crypto) Remote UK to £140k+ Do you have expertise with Python combined with CeFi / Crypto trading experience? You could be joining a massively profitable, technology driven electronic trading firm. As a Software Engineer you will collaborate with a cross functional team on research … topics and develop Python applications to support CeFi trading. You will be responsible for building high quality, performant code in a Linux environment. Location / WFH: You can work from home / remotely from anywhere in the UK. About you: You have an academic record of achievement, first … Assistance Programme Anniversary reward programme, including weekends away, 6 week sabbaticals Apply now to find out more about this Software Engineer 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 more »

will directly work with the research team to develop a client-server solution to enable reliable and effective front-end / back-end communication. • The candidate will build on the APIs of AI model to develop the back-end component. • The candidate will directly work … one’s time. • Expert mentoring skills necessary to provide support and constructive performance feedback. • Expert knowledge of the full software development lifecycle: from business / systems analysis, through requirements gathering and functional specification authoring, to development, testing and delivery. • Expert ability to troubleshoot issues and make system changes as … Coding skills in JS, Rust, Python, C#. • Experience in deploying ML models. • (optional) Experience in game development and 3D modeling. • (optional) Experience in developing / using physics simulators. Please apply for an immediate review more »

Application Support Developer (Python C++ Linux bash) London / WFH to £140k+ Opportunity for a highly talented Application Support Developer with Python / C++ coding skills to progress your career in an impactful role at a global HFT firm with significant bonus earning potential. As an Application Support … collaborative team working with a particular Portfolio Manager and will be able to see the results of your work and reap the rewards. Location / WFH: You'll join colleagues in the London office three days a week with flexibility to work from home the other two days, when … wellness expenses Charity donation marching programme Apply now to find out more about this Application Support Developer (Python C++ Linux bash) 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 more »

DevOps Engineer (Chef IaC) London / WFH Are you a technologist DevOps Engineer with strong Chef skills? You could be progressing your career and gaining valuable finance experience at a successful and growing FinTech that processed over £250 billion in business money transfers last year. As a DevOps Engineer … you'll join a small team to maintain and enhance new and existing DevOps and CI / CD processes in line with Agile workstreams, partnering with the software engineering team to help build systems and test automation infrastructure. One of your key responsibilities will be to maintain and enhance … including Chef Cookbooks You have a good understanding of IaC tools such as Terraform You're able to script with PowerShell, Python, Ruby and / or bash Experience with other tech in the stack such as AKS, Kubernetes, Helm charts, git, CI systems such as TeamCity, Jenkins, GitHub Actions more »

to elevate their latest multiplayer titles, enabling scalability in player numbers, maximising 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. … colleagues across the globe, we value and emphasise clear, continuous and transparent communication as highly as technical skills. Due to business growth, my client is looking to recruit an Experienced Online Game Developer , with industry experience in C++ and a games engine (some C# experience needed) to join … in shaping various aspects of the online services contributing to the overall vision of projects, and ensuring an exceptional gaming experience for their client's audiences. About you: Strong command of the English language 3 years + industry experience in Games Engines Experience with Unreal (personal projects or more »

Hardware Engineer (FPGA C++ RTL) London / WFH to £175k++ Opportunity for a highly talented Hardware Engineer to progress your career in an impactful role at a global HFT firm with significant bonus earning potential. As a Hardware Engineer you will join a cross-functional trading team to devise … There are many complex technical challenges to tackle, you'll be problem solving and collaborating with an experienced team on ground breaking tech. Location / WFH: You'll join colleagues in the London office three days a week with flexibility to work from home the other two days, when … or Computer Science You have a background with C++ software engineering and RTL design You have experience with FPGA vendor tools such as Vivado / Quartus You have a strong knowledge of Linux OS and an understanding of basic network protocols such as TCP / IP and Ethernet more »

Senior Product Manager London / WFH to 90kAre you a tech savvy Product Manager with a good knowledge of the AdTech space combined with SaaS product experience?You could be progressing your career as Senior Product Manager at a successful and growing AdTech company as they expand into European … the CTO and software engineering team.This is an impactful role where you can make a real difference and see the results of your efforts.Location / WFH:You can work from home most of the time, meeting up with the team in London around once a week / fortnight.About … have experience within the AdTech space, i.e. ad scheduling, bidding optimisation, billingYou have experience of establishing Product Management functions, ideally within a start-up / SMEYou have experience of collaborating with and managing Agile software development teamsYou have advanced communication and stakeholder management skills including client relationship more »

Technical Account Manager (Cyber Security Ops) London / WFH to £45k Opportunity to progress your career as part of a hugely talented team 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 … providing troubleshooting and technical support during this process whilst also developing your knowledge and skills around Security Operations, Threat Hunting and Offensive Security. Location / WFH: There's a remote interview / onboarding process and the ability to work from home for the majority of the time with … offices (i.e. 2-3 times a month). About you: You're degree educated, having achieved a 2.1 or above from a Red Brick / Russel Group, top tier university - Computer Science, Engineering, Physics or Mathematics; MSc or PhD advantageous You have commercial experience with Penetration testing, Offensive Security more »

Quantitative Developer (C++ Python) London / WFH to £300k+ Are you a Quantitative Developer with strong C++ and Python skills? You could be progressing your career in a senior, hands-on role at a global systematic trading firm and earning significant bonuses. As a Quantitative Developer you will collaborate … closely with a particular trading desk / pod and have a direct impact on the team's success. There are many complex technical challenges, you'll be collaborating with a highly talented to solve problems and push what is possible; you'll wok on ultra-low latency algorithmic trading … systems (tracking nanoseconds), the research platform which encompasses terabytes of data per day, analytics and cloud based infrastructure. 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. more »

to productionise that data and provide actionable insights. They are currently developing systems that will help to provide alerts on floods, wildfires and wind / hurricane events - this can be used by insurance companies and for government organisations. The possibilities of the technology are vast.As a Senior Product Manager … make decisions about implementation and resource trade-offs and manage technical projects.This is a stand-alone role where you'll take ownership and establish / promote the correct policies and procedures around Product Management.Location / WFH:You can work remotely from anywhere in the UK with the caveat … to HelsinkiImpactful role in a growing company with excellent career growth opportunitiesApply now to find out more about this Senior Product Manager 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 more »

DevOps Engineer (Ansible Ruby) London / WFH Are you a technologist DevOps Engineer with the ability to write code in Ruby? You could be progressing your career and gaining valuable finance experience at a successful and growing FinTech that processed over £250 billion in business money transfers last year. … As a DevOps Engineer you'll join a small team to maintain and enhance new and existing DevOps and CI / CD processes in line with Agile workstreams, partnering with the software engineering team to help build systems and test automation infrastructure. One of your key responsibilities will be … the year, a well stocked kitchen and other perks Apply now to find out more about this DevOps Engineer (Ansible Ruby) 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 more »

to productionise that data and provide actionable insights. They are currently developing systems that will help to provide alerts on floods, wildfires and wind / hurricane events - this can be used by insurance companies and for government organisations. The possibilities of the technology are vast. As a Senior Product … decisions about implementation and resource trade-offs and manage technical projects. This is a stand-alone role where you'll take ownership and establish / promote the correct policies and procedures around Product Management. Location / WFH: You can work remotely from anywhere in the UK with the … role in a growing company with excellent career growth opportunities Apply now to find out more about this Senior Product Manager 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 more »

in London UK and the current expectation is for the resource to work three days in the Battersea office with flexible days on Monday / Friday. For this contractor position, you will: Triage, troubleshoot & resolve front-line production support alerts and tickets. Monitor high-traffic systems responsible for operations … middleware, physical hardware & databases. Have a systematic, test and measure approach to continually improving operations & monitoring. Understand Web Service APIs, Internet architecture, & common client-server technology stacks. Provide a high level of customer experience to our internal and external stakeholders. Work closely with third parties, interacting … for ensuring our customers and stakeholders always get the best possible experience. Competencies : Well organised, learning on the fly, self-development, problem-solving, functional / technical skills. Prior experience as an SRE, System Administrator, Application Support, or similar role. more »

Senior Data Scientist (Python Real-time Data) London / WFH to £95k Hugely successful, profitable energy trading market data start-up is seeking a talented Senior Data Scientist to join their growing team. This is an excellent opportunity to join a well-funded company that have secured relationships with … Matter Expertise to the CTO and CEO. You'll endeavour to make improvements and enhance the role of Data Science across the business. Location / WFH: You'll be able to work from home most of the time, meeting up with colleagues in the London office 1-2 days … to deliver data products to market You have an academic record of achievement, 2.1 or above from a top tier university at BSc, MSC / PhD not required but highly regarded What's in it for you: Competitive salary, to £95k Stock options Hybrid working (1-2 days London more »

Cyber Security Engineer London / WFH to £100k Do you enjoy collaborating and working on complex systems with cutting edge technology? You could be progressing your career at a highly profitable Hedge Fund that invests in sports betting markets whilst enjoying a range of perks and benefits including hybrid … continual learning and self development opportunities and will be able to participate in technical discussions and decision making in a fairly 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 … Splunk, SIEM, SOAR, EDR, NDR You have a good knowledge of Linux and associated scripting languages e.g. Python, bash, PowerShell You have an infrastructure / systems engineering background Ideally you will have AWS cloud security experience, although you can learn this on the job You're collaborative and enjoy more »

Graduate Penetration Tester (Red Team) Hybrid WFH to £60k Do you have an academic record of achievement combined with an interest in Cyber Security / Penetration Testing? You could be progressing your career as a Penetration Tester at a rapidly expanding scale-up software house that is developing a … Team testing to try anything and everything to outmanoeuvre the defenders and gain access to customer networks. WFH Policy: There's a remote interview / onboarding process and the ability to work from home for the majority of the time with only occasional visits to the London, City offices … i.e. 2-3 times a month). Requirements: You're degree educated, having achieved a 2.1 or above from a Red Brick / Russel Group, top tier university - Computer Science, Engineering, Physics or Mathematics; MSc or PhD advantageous You have commercial experience with Penetration testing, Offensive Security, Red Team more »