1 to 25 of 135 Permanent Client/Server Jobs in London

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 »

Job DescriptionImplementation Consultant (Python) London / WFH to £75kDo you have Python coding experience combined with client facing skills?You could be progressing your career at a global FinTech consistently voted as a Top 10 place to work, they invest in their people, you'll be supported … algo trading coding and manage feature requests. This is a varied role with lots of business exposure where you can make a positive impact.Location / WFH:You can work from home most of the time, meeting up with colleagues 2-3 days a week in the City offices, when … range of facilities including large kitchen, café and all the latest kit to work on.About you:You are tech savvy with strong customer service / client facing skillsYou have strong Python coding skillsYou have experience of working in a Commodities trading environment (will consider other asset classes more »

Job DescriptionC++ Developer / Software Engineer (TMP C++ 20 / 23) London / WFH to £300k+Do you have expertise with C++ backend development, with experience of low latency trading systems?You could be progressing your career in a senior, hands-on role at a global systematic trading … of a small, Agile team that is embarking on building a new, low latency, trade execution system from scratch utilising modern C++ (C++ 20 / C++ 23) and Template Metaprogramming techniques.You'll be working across the full development lifecycle including design and architecture through to deployment, collaborating with a … edge trading systems.There are many complex technical challenges, you'll be collaborating with a highly talented to solve problems and push what is possible.Location / WFH:You have advanced C++ development skills including C++ 20, STL and BoostYou have experience of designing and implementing multithreaded and distributed systemsYou have 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 »

Job DescriptionSenior Data Engineer (AWS Snowflake DBT) London / WFH to £90kAre you a technologist Data Engineer looking for an opportunity to progress your career whilst working with a modern tech stack that you can influence?You could be joining a scale-up tech company that enables smart matching … as optimisation work, you'll be encouraged to contribute ideas for the Data Architecture and make suggestions for improvements within a collaborative team environment.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 … well as free breakfast every day in the officeApply now to find out more about this Senior Data Engineer (AWS Snowflake DBT) 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 »

Provide guidance on advanced engineering methods to safeguard the network from security threats associated with various architectures, including web, mobile, and client / server.• Evaluate the security measures of third-party systems and applications to ensure compliance with bank policies and standards, including authentication, authorization, and error 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 »

Software Developer / Engineer (.Net 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 expanding … 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 Software Developer / Engineer you will earn a competitive package: Salary to £140k Bonus (c25%), discretionary 26 days holiday (in addition to Bank Holidays) Pension Interesting work more »

Job DescriptionTechnical Recruiter / Recruitment Consultant Esher to £45kDo you have recruitment experience? Are you seeking a role where you can work hard and effect your own earnings, whilst continually learning and developing your career in a supportive team environment?You could be joining our team at Client … for individuals who: Are keen to progress your career as a tech-focused recruiter and deliver revenue through placementsHave experience in a Recruitment Consultant / Recruiter positionHave successful delivery against KPIsCan demonstrate your interests, competitiveness and determinationHave the ability to manage time efficientlyHave an ethical approach with quality of … VitalityPensionGym membership with Colets Health ClubMonthly Lunch ClubCycle to Work SchemeMonthly company meetingAnnual Summer and Christmas partyBusiness casual dress code and dress-down FridaysBeer / Wine fridgeAs a Technical Recruiter / Recruitment Consultant you will earn a competitive salary (to £35k) plus uncapped commission and benefits.Apply now or more »

Job DescriptionPlatform Engineer / DevOps (GCP Terraform) London / WFH to £95kDo you have expertise with GCP? You could be working on complex and interesting systems that provide daily challenges, collaborating with a friendly and upbeat team and improving your skills via continual learning programmes whilst enjoying a … good work / life balance at one of the country's best known online property rental sites.As a Platform Engineer / DevOps you will join a small team to ensure the reliability and performance of the core platform encompassing everything from how code is built and tested; how … including architecture, security and Terraform, having used both in production environmentsYou have a strong knowledge of Linux, likely to be from a Sys Admin / Engineering backgroundYou have experience with Terraform for writing IaCYou have experience of building containers with Docker and a good knowledge of operating orchestration solutions more »

Job DescriptionSoftware Engineer / Developer (C / C++ Apple Mac) WFH / London to £70kDo you have C / C++ skills combined with Apple extension experience?You could be joining a hugely talented team at a rapidly expanding scale-up software house that is developing a … to detect hackers, malware, data leakage and other malicious activity.As a Software Engineer 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 tools and API integrations.Location / WFH:You can work … the time, meeting up with colleagues in the London office once or twice a month.About you:You're a skilled Software Engineer with C / C++ development skillsYou have a strong knowledge of Network Security and EDR / EDTRYou have experience of integrating software with Apple Mac extensions more »

Implementation Consultant (Python) London / WFH to £75k Do you have Python coding experience combined with client facing skills? You could be progressing your career at a global FinTech consistently voted as a Top 10 place to work, they invest in their people, you'll be supported … trading coding and manage feature requests. This is a varied role with lots of business exposure where you can make a positive impact. Location / WFH: You can work from home most of the time, meeting up with colleagues 2-3 days a week in the City offices, when … of facilities including large kitchen, café and all the latest kit to work on. About you: You are tech savvy with strong customer service / client facing skills You have strong Python coding skills You have experience of working in a Commodities trading environment (will consider other more »

Job DescriptionSOC Manager / Lead London / WFH to £70kAre you an experienced SOC Manager / Lead with a strong knowledge of SIEM?You could be progressing you career in an impactful role at a tech company that provide cyber security products to a range of finance … government, defence, law enforcement and pharmaceutical companies.As a SOC Manager / Lead you'll play an integral role in ensuring the security and resilience of both internal and client based information systems. You'll provide subject matter expertise, selecting the appropriate SIEM platform and then once it … procedures and processes from the ground up, collaborating with senior stakeholders and other teams to drive adoption and quickly building a team around you.Location / WFH:You'll be joining a diverse, international team, working in a relaxed software house environment (i.e. non-corporate, casual dress, table football), in more »

Job DescriptionSenior React Native Developer / Engineer London to £120kAre you a Senior Software Engineer who has expertise with mobile application development (iOS / Android / React Native)?You could be progressing your career as a Senior React Native Developer at a growing tech start-up as … across mobile and web. You will also partner with back and front end software engineers to build a unified experience on a common infrastructure.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're … Software Engineer with a thorough knowledge of Computer Science fundamentals such as OOP, Data Structures, Design PatternsYou have mobile application experience with iOS (Swift / Objective C) or Android (Java, Kotlin), combined with React NativeYou have front end experience with ReactYou're familiar with C / CD, automation more »

Job DescriptionFront End Developer (React JavaScript / TypeScript) London / WFH to £65kWant 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?You could be progressing your career as a Front End … putting ideas together for new features, 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 … passionate technologist, keep up to date with the latest innovations and learn new thingsYou 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 more »

Job DescriptionC# Software Engineer / Developer (.Net Core) London / WFH to £90kDo 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 … with a team of highly skilled engineers as well as business stakeholders, continually learning, assessing new technologies and making recommendations within a 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 … have C# serverside development skills, including .Net Core and multi-threadingYou have a good knowledge of AWS and KubernetesThe tech stack also includes JavaScript / TypeScript, Blazor and React for client side applications; experience with any of these would be beneficial but you can pick them up more »

Job DescriptionSenior Full Stack Developer / Engineer (React TypeScript C#) London / WFH to £85kAre you a technologist with full stack development skills looking to work with a modern tech stack in a role where you can see the results of your work?You could be progressing your … Learning driven SaaS platform.As a Senior Full Stack Developer you'll have a range of interesting projects to work on, with roughly a 50 / 50 split between front and back end development. You'll design and develop Greenfield software within an Agile team environment working across the full … be an integral part of a small development team where you'll contribute to technical discussions and decision making and have your voice heard.Location / WFH:You can work from home most of the time, meeting up with the team in London around once a week / fortnight.About more »

Job DescriptionFull Stack Developer / Engineer (.Net React AWS SaaS) London / WFH to £70kAre you a technologist with full stack development skills looking to work with a modern tech stack in a role where you can see the results of your work?You could be progressing your … Machine Learning driven SaaS platform.As a Full Stack Developer you'll have a range of interesting projects to work on, with roughly a 50 / 50 split between back and front end development. You'll design and develop Greenfield software within an Agile team environment working across the full … an integral part of a small Agile development team where you'll contribute to technical discussions and decision making and have your voice heard.Location / WFH:You can work from home most of the time, meeting up with the team in London around once a week / fortnight.About more »

Job DescriptionBackend Software Engineer / Developer (C++ Python Linux) London / WFH to £160kDo you have expertise with C++ / Python backend development? You could be progressing your career working on complex, real-time systems at a global Hedge Fund in a senior, hands-on Backend Software … work across the full development lifecycle, from requirements analysis through to solution delivery; there's lots of problem solving within a fast paced environment.Location / WFH: You'll join a highly talented team in the London office three days a week with flexibility to work from home the other … at a buy-side firm (i.e. Hedge Fund or trading company), including experience in Futures and FXYou have a strong knowledge of Linux OS / Systems AdministrationYou have a good understanding of computer architecture, databases, real-time systems, distributed computing, OOP, Data Structures, Design Patterns, AlgorithmsYou're collaborative with more »

Job DescriptionPython Developer / Team Lead (Django REST APIs SaaS AI) London / WFH to £100kAre you a Python technologist looking for an opportunity to progress your career in a hands-on leadership role?You could be joining a growing tech company, working on the core SaaS Accounts … Payable software that uses AI to enable clients to save money by preventing double payments and avoiding clawback.As a Python Developer / Team Lead you'll head up a small Agile team as an advocate of best practice, supporting your team to make architectural decisions, participating in code reviews … enhancements on a relatively young codebase.The company is enjoying great success and growing, you'll help to grow the team as the company scales.Location / WFH:There's a hybrid work from home model, you'll meet up with colleagues in the office based in a trendy area of more »

Job DescriptionC++ Developer / Backend Software Engineer (Windows C / C++) London to £75k FTCAre you a backend focussed 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 … two years to complete, you'll be employed on a FTC basis for 12 monthly terms with the option to go permanent on completion.Location / WFH: You'll join colleagues in the City office three days a week with flexibility to work from home twice a day.About you: You … have C / C++ development skills on Windows OSYou have full software development lifecycle experienceYou have a good knowledge of networking protocols e.g. TCP / IP, multicastYou have a strong grounding in Computer Science fundamentals e.g. multi-threading, OOP, Data Structures, Design PatternsYou're collaborative with great communication more »

Job DescriptionSoftware Developer / Engineer (Full Stack React C#) London / WFH to £70kAre you a technologist Software Developer with full stack development skills looking to work with a modern tech stack in a role where you can see the results of your work?You could be progressing … and Machine Learning driven SaaS platform.As a Software Developer you'll have a range of interesting projects to work on, with roughly a 50 / 50 split between back and front end development. You'll design and develop Greenfield software within an Agile team environment working across the full … an integral part of a small Agile development team where you'll contribute to technical discussions and decision making and have your voice heard.Location / WFH:You can work from home most of the time, meeting up with the team in London around once a week / fortnight.About more »

Job DescriptionSoftware Engineer / Developer (Linux Security EDR C C++) WFH / London to £50kOpportunity 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 … correlation algorithms and an incident reporting and forensics engine. There's a strong pipeline of projects with a range of complex and interesting work.Location / WFH:You can work from home most of the time, meeting up with colleagues in the London office once or twice a month.About you … You have a strong knowledge of EDR / EDTR, Network Security, Anti-Virus and FirewallsYou have C / C++ development skillsYou're collaborative with great communication skillsYou have experience of producing technical documentationWhat's in it for you:As a Software Engineer / Developer you will earn more »

Job DescriptionJavaScript Developer / Engineer (React Java) London / WFH to £60kAre you a technologist JavaScript Developer?You could be progressing your career at a market leading FinTech that provide real-time web connectivity market data and trading services to investment banks and other financial institutions worldwide.As a … You'll be working with a range of technologies including JavaScript, HTML5, CSS as well as React, React Native, Redux and backend Java integration.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 … strong Front End development skills including strong Vanilla JavaScriptYou have a good knowledge of React.js / React Native, HTML and CSSYou have a good understanding of backend Java developmentYou have a good knowledge of Computer Science fundamentals such as OOP, Data Structures, Design PatternsYou're collaborative with great communication more »

Job DescriptionLead Full Stack Developer / Engineer (JavaScript Java) London / WFH to £80kAre you a technologist with leadership skills? You could be progressing your career in a hands-on leadership role at a market leading FinTech that provide real-time web connectivity market data and trading services … Native, Redux and backend Java integration, with around 30-40% of your time hands-on with the focus on managing and leading the team.Location / WFH: You can work from home most of the time, meeting up with colleagues in the London office once or twice a month.About you … You have strong Front End development skills including JavaScript, TypeScript, HTML5, CSS and a good knowledge of React.js / React NativeYou have experience with backend Java developmentYou have leadership / mentoring skills and are keen to be more leadership focussedYou're collaborative with great communication and collaboration skillsWhat more »