51 to 75 of 78 Client/Server Jobs in London

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 ❯

Python Developer / Software Engineer (Python C++ Grid Computing) London / WFH to £135k Are you a skilled backend Python Developer combined with C++ skills and financial trading systems experience? You could be progressing your career in a senior, hands-on Python Developer position at the Investment Management arm of a global bank. As a Python Developer within … scale analytical computations including Risk. You'll collaborate closely with Quantitative Analysts, working across the full software development lifecycle with a focus on Python and C++ backend development. Location / WFH: You'll join colleagues in the London, City office with flexibility to work from home once a week. About you: You have strong backend software engineering experience with … educated in Computer Science or similar STEM discipline, having achieved a 2.1 or above from a Russel Group university What's in it for you: As a Python Developer / Backend Software Engineer you will receive a competitive package: Salary to £135k Bonus A range of flexible benefits including Health and Dental care, Critical Illness cover, Employee Assistance Programme More ❯

Write clean, scalable, and maintainable code following best practices and coding standards. Integrate RESTful or GraphQL APIs and handle client-server communication securely. Implement CI / CD pipelines and collaborate with DevOps for deployment and monitoring. Write automated unit and integration tests to ensure code reliability. Work closely with UX / UI designers, product … within the Appwrite ecosystem. Requirements 3+ years of experience in full stack development. Hands-on experience with backend platforms or services, including setup, API integration, database management, and serverless / cloud functions. Proficiency in at least one modern frontend framework: React, Vue.js, or Angular. Experience with Node.js, Express, or similar backend runtimes. Familiarity with Docker, Kubernetes, serverless environments, and … container orchestration (optional but a plus). Experience with Git / GitHub and agile development workflows. Strong understanding of RESTful API design, authentication mechanisms (OAuth, JWT), and security best practices. Excellent problem-solving skills and a proactive mindset. 100% Remote Our entire company is distributed, so we take remote work seriously. If you'd rather not work from home More ❯

Kotlin , C++ , and Postgres , supporting millions of user endpoints and running as a scalable cloud service in AWS . Knowing large-scale datastore bottlenecks, asynchronous application design and client-server architecture will help you. What you'll be doing Diagnose and resolve complex application and infrastructure issues Participate in our 24x7 on-call rotation, SCRUM, and … and infrastructure Other duties as needed About You 5+ years' experience in Site Reliability Engineer roles Expert+ level Linux administration, scripting, and troubleshooting Demonstrable knowledge of Observability tools (Prometheus / Grafana, New Relic, Splunk, DataDog) Comprehensive experience with AWS (Amazon Web Services) and its core capabilities (VPC, EC2, ECS, Route53, Fargate, ALB / NLB distributions, etc) Extensive experience … but also including Terraform, Helm and Ansible. CDK a plus. Good understanding of containers, Fargate, Kubernetes, and overall distributed microservice architectures Passionate about automation, security, and self-service environments / portals Hands-on experience with CI / CD and SDLC (Software Development Life Cycle) processes Effective communication skills, both verbal and written. About Us NinjaOne automates the hardest More ❯

Kotlin , C++ , and Postgres , supporting millions of user endpoints and running as a scalable cloud service in AWS . Knowing large-scale datastore bottlenecks, asynchronous application design and client-server architecture will help you. What you'll be doing Diagnose and resolve complex application and infrastructure issues Participate in our 24x7 on-call rotation, SCRUM, and … and infrastructure Other duties as needed About You 5+ years' experience in Site Reliability Engineer roles Expert+ level Linux administration, scripting, and troubleshooting Demonstrable knowledge of Observability tools (Prometheus / Grafana, New Relic, Splunk, DataDog) Comprehensive experience with AWS (Amazon Web Services) and its core capabilities (VPC, EC2, ECS, Route53, Fargate, ALB / NLB distributions, etc) Extensive experience … but also including Terraform, Helm and Ansible. CDK a plus. Good understanding of containers, Fargate, Kubernetes, and overall distributed microservice architectures Passionate about automation, security, and self-service environments / portals Hands-on experience with CI / CD and SDLC (Software Development Life Cycle) processes Effective communication skills, both verbal and written. About Us NinjaOne automates the hardest More ❯

Front End Engineer / Developer (React v19 TypeScript) London / WFH to £95k Are you a Front End technologist looking for an opportunity to progress your career in a hands-on role with lots of learning opportunities? You could be joining a Hedge Fund with complex work and substantial bonus earning potential. As a Front End Engineer you … 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 … 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 Front End Engineer / Developer (React v19 TypeScript) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. More ❯

Front End Engineer / Developer (React v19 TypeScript) London / WFH to £95k Are you a Front End technologist looking for an opportunity to progress your career in a hands-on role with lots of learning opportunities? You could be joining a Hedge Fund with complex work and substantial bonus earning potential. As a Front End Engineer you … 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 … 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 Front End Engineer / Developer (React v19 TypeScript) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. More ❯

Security Operations Lead (Splunk GCP SOC) London / WFH to £115k Do you have expertise with Security Operations within web based environments? You could be progressing your career in senior, hands-on role at one of the country's leading PropTech sites that have revolutionised the way we find property for rent and sale with millions of users per … remains strong. Current projects include collaborating with DevOps teams on implementing security controls in GCP based web hosting environment including implanting controls within the software development lifecycle and CI / CD processes and working with the IT Infrastructure team on the security elements of migrating on-premise Windows estate to Azure. You'll lead threat modelling and threat hunting … potential compromises, work with external teams on penetration tests and red team engagements and manage SIEM and XDR tooling, establish processes and workflows to support incident response SOC. 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 days. Please note you will More ❯

Lead Security Operations Engineer (Splunk GCP SOC) London / WFH to £115k Do you have expertise with Security Operations within web based environments? You could be progressing your career in senior, hands-on role at one of the country's leading PropTech sites that have revolutionised the way we find property for rent and sale with millions of users … remains strong. Current projects include collaborating with DevOps teams on implementing security controls in GCP based web hosting environment including implanting controls within the software development lifecycle and CI / CD processes and working with the IT Infrastructure team on the security elements of migrating on-premise Windows estate to Azure. You'll lead threat modelling and threat hunting … potential compromises, work with external teams on penetration tests and red team engagements and manage SIEM and XDR tooling, establish processes and workflows to support incident response SOC. 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 days. Please note you will More ❯

Lead Security Operations Engineer (Splunk GCP SOC) London / WFH to £115k Do you have expertise with Security Operations within web based environments? You could be progressing your career in senior, hands-on role at one of the country's leading PropTech sites that have revolutionised the way we find property for rent and sale with millions of users … remains strong. Current projects include collaborating with DevOps teams on implementing security controls in GCP based web hosting environment including implanting controls within the software development lifecycle and CI / CD processes and working with the IT Infrastructure team on the security elements of migrating on-premise Windows estate to Azure. You'll lead threat modelling and threat hunting … potential compromises, work with external teams on penetration tests and red team engagements and manage SIEM and XDR tooling, establish processes and workflows to support incident response SOC. 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 days. Please note you will More ❯

Staff Software Engineer / Developer (Java Kotlin AWS API) Hybrid WFH to £110k Would you like to progress your career in an impactful hands-on Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded by two highly successful, Cambridge University educated management consultants, that is aiming to improve patient and social … ll be hands-on with architecture, design and coding, including complex business logic, authentication and security aspects, working across the full tech stack to create the beta product. Location / WFH: You can work from home most of the time, the company has office space in London you'll join them there once every three weeks, and also occasionally … package Impactful role with excellent progression opportunities Opportunity to work on tech for good to positively benefits society Apply now to find out more about this Staff Software Engineer / Developer (Kotlin AWS React) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. More ❯

Backend Software Engineer / Developer (Java Kotlin AWS API) Hybrid WFH to £110k Would you like to progress your career in an impactful hands-on Backend Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded by two highly successful, Cambridge University educated management consultants, that is aiming to improve patient and … ll be hands-on with architecture, design and coding, including complex business logic, authentication and security aspects, working across the full tech stack to create the beta product. Location / WFH: You can work from home most of the time, the company has office space in London you'll join them there once every three weeks, and also occasionally … package Impactful role with excellent progression opportunities Opportunity to work on tech for good to positively benefits society Apply now to find out more about this Backend Software Engineer / Developer (Java Kotlin AWS 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 (Java Kotlin AWS API) Hybrid WFH to £110k Would you like to progress your career in an impactful hands-on Backend Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded by two highly successful, Cambridge University educated management consultants, that is aiming to improve patient and … ll be hands-on with architecture, design and coding, including complex business logic, authentication and security aspects, working across the full tech stack to create the beta product. Location / WFH: You can work from home most of the time, the company has office space in London you'll join them there once every three weeks, and also occasionally … package Impactful role with excellent progression opportunities Opportunity to work on tech for good to positively benefits society Apply now to find out more about this Backend Software Engineer / Developer (Java Kotlin AWS React) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually More ❯

Senior Software Engineer / Developer (Full Stack JavaScript) London to £100k Opportunity to progress your career in a senior, hands-on Software Engineer 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 has been established … 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 Front End Developer / Engineer (React TypeScript Data Visualisation) London to £80k Are you a skilled Software Developer with strong React and Data Visualisation skills combined with a good appreciation of financial markets and technology? You could be joining a growing, global, Fintech services company that has seen 30-40% year on year growth for the past … of the platform with a focus on real-time data visualisation on business critical systems using React. You'll collaborate with backend engineers to build complex financial products. Location / WFH: You'll join the team in Central London three days a week with flexibility to work from home the other two days. About you: You have a strong … and Vision cover Pension Share Option scheme Employee Wellness Programme Summer time hours £2k personalised training budget Apply now to find out more about this Senior Front End Developer / Engineer (React TypeScript Data Visualisation) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually More ❯

Senior Cloud Engineer (AWS GCP IaaS PaaS) London / WFH to £110k Are you a cloud technologist? You could be progressing your career in an impactful Senior Cloud Engineer role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top employers. As a Senior Cloud Engineer you will join … with key technical enablers, building automation and self service capabilities that streamline operations across the globe. You'll architect and design IaaS and PaaS on a multi-cloud (AWS / GCP) platform, deploy scalable, resilient cloud solutions, create developer friendly tools and platforms, implement IaC practices and connect with on-prem infrastructure. You'll collaborate with the team to … seek continual improvement and to optimise cloud resources to balance performance and cost efficiency. Location / WFH: There's a hybrid model with two days a week work from home, when you are in the office you'll be based in the City with an upbeat team environment, casual dress code and a range of facilities including roof terrace More ❯

Senior Cloud Engineer (AWS GCP IaaS PaaS) London / WFH to £110k Are you a cloud technologist? You could be progressing your career in an impactful Senior Cloud Engineer role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top employers. As a Senior Cloud Engineer you will join … with key technical enablers, building automation and self service capabilities that streamline operations across the globe. You'll architect and design IaaS and PaaS on a multi-cloud (AWS / GCP) platform, deploy scalable, resilient cloud solutions, create developer friendly tools and platforms, implement IaC practices and connect with on-prem infrastructure. You'll collaborate with the team to … seek continual improvement and to optimise cloud resources to balance performance and cost efficiency. Location / WFH: There's a hybrid model with two days a week work from home, when you are in the office you'll be based in the City with an upbeat team environment, casual dress code and a range of facilities including roof terrace More ❯

IT infrastructure, ensuring it is resilient, secure, reliable and efficient. You'll troubleshoot and resolve operational issues, introduce automation wherever possible and manage the delivery of IT projects. Location / WFH: You'll be based in impressive London based offices, onsite Monday to Friday 0800-1700. About you: You have experience in a similar environment, supporting users on … and Excel coding skills You are collaborative and pragmatic with excellent communication and stakeholder management skills You're a technologist, likely to have your own home set up, read / write blogs, attend conferences What's in it for you: As a Trade Desktop Support Engineer you will earn a competitive package including: Salary to £80k + bonus Pension … Career advancement Apply now to find out more about this Trade Desktop Support Engineer (Windows Trayport Joule) 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 More ❯

Business Analysis Practice Lead London / Milton Keynes to £105k Are you an experienced Business Analyst with strong TOM design skills combined with leadership experience? You could be progressing your career in senior / management level role at one of the country's leading PropTech sites that have revolutionised the way we find property for rent and sale … and guidance to a team of five Business Analysts, working across various business teams. You'll represent B2B within the technology teams, contributing to product and technical strategy. Location / WFH: You'll split your time between London and Milton Keynes (one day at each office per week) with the other three days work from home. About you: You … management skills You are degree educated What's in it for you: As a Business Analysis Practice Lead you will receive a competitive package: Salary to £105k Enhanced maternity / paternity packages Pension and Life Assurance Private healthcare including optical and physio Travel loan and cycle to work scheme Savings schemes Tax free charity donations Apply now to find More ❯

Skills and Experience You possess strong development experience in Java and Kotlin. You have familiarity with Agile processes and Test-Driven Development (TDD). Technical Expertise You understand Computer Science, Object-oriented Programming (OOP), Design Patterns, Data Structures, and Algorithms. More ❯

Data Engineer (PySpark SQL Databricks AWS) London / WFH to £70k Opportunity to progress your career as a Data Engineer at a scaling, tech driven company that specialises in music royalty management, they've put significant investment into data processing capabilities, with a modern data platform that handles billions of lines of royalty data with an emphasis on streaming. … that leverage the company's bespoke data infrastructure, preparing audits and carrying out analysis. You'll be primarily working with PySpark, SQL and Databricks within an AWS environment. Location / WFH: You can work from home most of the time meeting up with colleagues in the London office two or three times a month. About you: You have strong … Engineer within the Music industry or an Accountancy environment You have strong technical skills with PySpark, SQL, Databricks and AWS You have experience with ETL pipelines and Data Warehouse / Data Lakes You're degree educated in mathematics or similar numerate discipline You're collaborative with great communication skills Ideally you will have an interest in the music industry More ❯

Principal Data Engineer (Python AWS) London / WFH to £120k Do you have significant experience with Python data engineering and architecture? You could be progressing your career in an impactful, hands-on Principal Data Engineer role at a hugely successful European eCommerce with a customer base of over 10 million. As a Principal Data Engineer you will take a … contribute to key decision making across the Data and Machine Learning engineering space on technical approaches to balance delivering near-term commercial impact and building long-term foundations. Location / WFH: You can work from home most of the time, meeting up with colleagues in the well situated London office twice a week. About you: You have advanced data … coding skills combined with a thorough understanding of software engineering best practices You have an indepth understanding of data engineering principles and best practices, including data modelling, observable ETL / ELT processes, data warehousing and data governance You have experience with AWS and tools such as Snowflake You're collaborative and pragmatic with excellent communication skills What's in More ❯

design of large systems, as well as in data infrastructure. Someone who likes opening the hood to see how things work, has understanding of data structures, experience writing client-server network applications, and writing and optimising code for high performance. We welcome your previous experience from your own personal projects as well as commercial experience. We More ❯

Principal Infrastructure Engineer (Nutanix HCI IaC) London / WFH to £125k Do you have expertise with Nutanix HCI? You could be progressing your career in an impactful Principal Infrastructure Engineer at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top employers. As a Principal Infrastructure Engineer you will play … will provide technical expertise and guidance on Nutanix HCI, managing several thousand virtual machines and also help to drive the adoption of IaC using tools such as Terraform. Location / WFH: There's a hybrid model with two days a week work from home, when you are in the office you'll be based in the City with an … an open, diverse and inclusive culture Plus a range of other perks Apply now to find out more about this Principal Infrastructure Engineer (Nutanix HCI IaC) 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 More ❯