Open Source Team

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Open Source Team Open Source Team Jobs →

Client Server’s Open Source team recruits talented Python, Node, AWS and cloud developers.

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William Brock

Senior Consultant

wbrock@client-server.com

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Thomas Robinson

Consultant

trobinson@client-server.com

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Jonathan Trillwood

Junior Consultant

jtrillwood@client-server.com

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Shaun McGovern

Consultant

smcgovern@client-server.com

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Open Source Team

Live Open Source Team Jobs

Software Developer JavaScript Ruby API

Posted about 8 hours ago

Software Developer / Full Stack Engineer (JavaScript OOP Ruby .Net Java API). Would you like to make an impact in a successful and growing start-up, progress your career and enjoy flexible working including the option to work from home part of the week? As a senior Software Developer you will work with the product lead to find the right technical solution to business problems working across the full technology stack from database through to JavaScript front end, producing well tested code. You'll be able to work with a range of different languages and technologies, using Ruby going forward for backend development and JavaScript frameworks such as React on the UI within a microservices / DevOps type environment. The platform currently has over 30,000 c-suite users and is set to expand in the coming year bringing lots of new challenges around scalability. You'll be encouraged to pro-actively identify improvements and technology choices in a coll... Read More

Software Developer / Full Stack Engineer (JavaScript OOP Ruby .Net Java API). Would you like to make an impact in a successful and growing start-up, progress your career and enjoy flexible working... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£65000 - £75000 per annum + benefits

Job Ref:

BB/14698/C/KS/270120_1580127456

Phone:

020 8016 4452

Apply Now
Python Developer Web Django REST API

Posted about 10 hours ago

Python Developer (Web Django REST API). Would you like to join a collaborative team of talented individuals working on high availability solutions where you can learn and improve your skillset, work on the latest MacBook Pro and enjoy perks such as monthly team entertainment budget? As a Python Developer at this successful software house you will design and develop bespoke web based systems for one of the core products that provides TV streaming products / applications to a range of broadcasters and media providers. You'll be working with engineers using a range of technologies across the stack including JavaScript, iOS, Android and SmartTV development. You'll work with the latest technologies, responsive web design and iteratively You'll be based in a fashionable area of London with plenty going on, cool modern offices with casual dress code and the latest kit. Requirements: *Strong Python web frameworks experience, Django preferred *Good und... Read More

Python Developer (Web Django REST API). Would you like to join a collaborative team of talented individuals working on high availability solutions where you can learn and improve your skillset, wo... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£50000 - £60000 per annum + benefits

Job Ref:

BB/14648/A/KS/270120_1580118405

Phone:

020 8016 4452

Apply Now
Lead Ruby Developer RoR HTML CSS React

Posted 3 days ago

Lead Ruby Developer (Ruby on Rails Web HTML CSS React). Would you like to take a lead role at a global technology company whilst remaining hands-on enjoying and perks such as flexible working and an ongoing professional development budget (training, conferences and events)? The core platform is a highly complex distributed, real-time engine integrated to clients to enable things such as Live Chat, real-time scoring, real-time location tracking, live documentation sharing, MMO games and eLearning to name but a few. As a Lead Ruby Developer you'll head up the web engineering team responsible for the website, developer dashboards, common services and API provisioning that their end users (software developers) depend on. The focus of your role will be on writing high quality backend code that is robust and thoroughly tested as well as mentoring and providing technical leadership to the team. You'll be based in North London, in a start-up environme... Read More

Lead Ruby Developer (Ruby on Rails Web HTML CSS React). Would you like to take a lead role at a global technology company whilst remaining hands-on enjoying and perks such as flexible working and ... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£75000 - £90000 per annum + benefits

Job Ref:

BB/14269/F/KS/240120_1579855069

Phone:

020 8016 4452

Apply Now
Python Developer Automation Linux CI/CD

Posted 4 days ago

Python Developer / Systems Engineer (Linux CI/CD). Are you a senior Python Developer who wants to remain hands-on, working on complex and technically challenging systems? Join this hugely profitable algorithmic trading company and collaborate with quant researchers; you'll be based in an amazing building with 360 views of the City. As a Python Developer you will develop automation tools using Python with the aim of automating software deployment, data quality checks as well as the visualisation of backend services and the activity within those services. You'll be joining a hugely talented team with counterparts in Singapore and Montreal and will learn and develop your technology skills and business knowledge; opportunities to move into Technical Leadership if desired. Requirements: *Strong Python development skills *Experience of developing automation tools *Good understanding of Systems Engineering, the full development lifecycle and Computer... Read More

Python Developer / Systems Engineer (Linux CI/CD). Are you a senior Python Developer who wants to remain hands-on, working on complex and technically challenging systems? Join this hugely profitab... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£90000 - £120000 per annum + bonus + benefits

Job Ref:

BB/14531/B/KS/230120_1579770748

Phone:

020 8016 4452

Apply Now
Software Engineer Python C++ Java Golang

Posted 5 days ago

Software Engineer / Backend Developer (Python C++ Java Golang RESTful API microservices). Technology company that is developing a complex behavioural based modelling software is seeking a technologist Software Engineer. You will design and develop the core cloud based Platform-as-a-Service which is used for the development and deployment of data-driven agent-based models used to support strategic decision making. As a Software Engineer / Backend Developer you'll be using a range of programming languages with a focus on Python; data intensive microservice architectures; developing and maintaining RESTful APIs; working on Linux based systems (Ubuntu, Debian) as well as RDBMS / NoSQL databases. You'll be joining an Agile development team that prides itself on producing quality code and partnering with data scientists within a collaborative, intellectually challenging environment. Requirements: *Degree educated, 2.1 or above - Computer Science pre... Read More

Software Engineer / Backend Developer (Python C++ Java Golang RESTful API microservices). Technology company that is developing a complex behavioural based modelling software is seeking a technolo... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£50000 - £65000 per annum + benefits

Job Ref:

BB/14782/B/KS/220120_1579711259

Phone:

020 8016 4452

Apply Now
Software Developer DevOps Ruby AWS

Posted 5 days ago

Software Developer / Site Reliability Engineer (DevOps Ruby AWS Data). Are you a tech-savvy, ambitious Software Developer wanting to drive operational change in a company with global reach? One of the largest data-streaming companies in the world is seeking a Software Engineer to enhance their capabilities as they build the infrastructure to power and shape the future of the internet. They are responsible for streaming billions of real-time messages to millions of end-users for thousands of developers across the world. They are seeking a truly tech-driven individual, keen to get stuck at granular level, building solutions to enhance availability, performance and stability of the core cutting edge platform as well as taking ownership of developing new network services. You'll have the chance to collaborate with other highly talented engineers to resolve problems at internet scale, optimsing the efficiency and output of a market-leading organisa... Read More

Software Developer / Site Reliability Engineer (DevOps Ruby AWS Data). Are you a tech-savvy, ambitious Software Developer wanting to drive operational change in a company with global reach? One of... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£65000 - £85000 per annum + benefits

Job Ref:

BB/13623/E/JR/220120_1579689231

Phone:

020 8016 4452

Apply Now
Python Developer AWS CI/CD

Posted 5 days ago

Python Developer / Senior Software Engineer (AWS CI/CD). Would you like to work on complex and interesting systems whilst utilising the latest technologies and enjoying a good work / life balance? As a Python Developer you will design and develop new features and enhancements across the full technology stack. The core product allows business users to capture data via integrated mobile services utilising video analytics and speech recognition to analyse and categorise meeting discussions, presentations and conferences. The technology stack is based on an AWS cloud platform, Android Java and iOS Swift mobile apps, React frontend with Django on Python and PostgreSQL. There's the ability to move fast and experiment by applying good API design principles between components and using microservices. Requirements: *Strong software engineering experience with good Python, Django skills *Good knowledge of Cloud based technologies (AWS preferred) *Experi... Read More

Python Developer / Senior Software Engineer (AWS CI/CD). Would you like to work on complex and interesting systems whilst utilising the latest technologies and enjoying a good work / life balance?... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£85000 - £110000 per annum + stock

Job Ref:

BB/14220/A/KS/220120_1579684238

Phone:

020 8016 4452

Apply Now
Lead Full Stack Developer Python Django API

Posted 6 days ago

Lead Full Stack Developer / Software Engineer (Python Django REST API DevOps). Would you like to take a senior role where you can make a real impact, work with the latest technology and progress your career to a Head of Engineering position? As a Lead Full Stack Developer at this successful software house you will design and develop bespoke web based systems for one of the core products that provides TV streaming products / applications to a range of broadcasters and media providers. You will head up a team of approximately six engineers and partner with the CTO to plan strategy, define and architect projects. You will also be working directly with clients to ensure requirements are understood; produce prototypes and proof of concepts to drive future product development and on-board new clients. You'll ensure that code quality is of the highest standard, easily transferable amongst the team and peer reviewed; providing technical guidance, esti... Read More

Lead Full Stack Developer / Software Engineer (Python Django REST API DevOps). Would you like to take a senior role where you can make a real impact, work with the latest technology and progress y... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£70000 - £85000 per annum + benefits

Job Ref:

BB/14753/B/KS/210120_1579622974

Phone:

020 8016 4452

Apply Now
Backend Developer Python SQL API

Posted 6 days ago

Backend Developer / Python Software Engineer (Python Django SQL API). Want to work with a team of technologists where you will be actively encouraged to learn, share knowledge and develop your skills within a supportive technology driven environment? You could be joining a technology start-up that provide white labelled ticketing platforms to the likes of Amazon. You will be responsible for the end-to-end delivery of new products and the enhancement of existing services; you'll be working on B2C eCommerce websites and API development for white labelled products with a focus on backend development using Python. There are several technical challenges to tackle including migrating to a microservices based architecture, moving infrastructure to GoogleCloud and simplifying the system to allow for scalability. The tech stack is based on Python and Go with some legacy Objective-C. This Backend Developer role presents an excellent opportunity to make ... Read More

Backend Developer / Python Software Engineer (Python Django SQL API). Want to work with a team of technologists where you will be actively encouraged to learn, share knowledge and develop your ski... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£50000 - £60000 per annum + benefits

Job Ref:

BB/14598/A/KS/210120_1579597680

Phone:

020 8016 4452

Apply Now
Python Developer Full Stack - French

Posted 7 days ago

Python Developer / Full Stack Software Engineer (Python Scala Java Golang Ruby Elixr React Agile). Would you like to to take on a challenging and highly rewarding role within a hugely successful technology company? You'll initially be based in the company's head office in central Paris (for a minimum of 6 months) where you'll undergo a comprehensive training programme before heading back to the UK to set up their first London office. As a Python Developer you'll be responsible for maintaining and developing the company's core platform; an order management platform that manages billions of orders per year for large scale clients including Michelin. You'll also be working closely with clients to create complex and bespoke features and will be responsible for identifying and implementing tools that will enable the team to scale. This is a unique opportunity for you to utilise and develop your skills whilst taking the challenge of setting up your ... Read More

Python Developer / Full Stack Software Engineer (Python Scala Java Golang Ruby Elixr React Agile). Would you like to to take on a challenging and highly rewarding role within a hugely successful t... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£40000 - £55000 per annum + benefits

Job Ref:

BB/14637/B/KS/200120_1579538079

Phone:

020 8016 4452

Apply Now
Software Engineer - Python Web Django REST API

Posted 7 days ago

Software Engineer / Python Developer (Web Django REST API). Would you like to join a collaborative team of talented individuals working on high availability solutions where you can learn and improve your skillset, work on the latest MacBook Pro and enjoy perks such as monthly team entertainment budget? As a Software Engineer at this successful software house you will design and develop bespoke web based systems for one of the core products that provides TV streaming products / applications to a range of broadcasters and media providers. You'll be working with engineers using a range of technologies across the stack including JavaScript, iOS, Android and SmartTV development. You'll work with the latest technologies, responsive web design and iteratively You'll be based in a fashionable area of London with plenty going on, cool modern offices with casual dress code and the latest kit. Requirements: *Strong Python web frameworks experience, Djang... Read More

Software Engineer / Python Developer (Web Django REST API). Would you like to join a collaborative team of talented individuals working on high availability solutions where you can learn and impro... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£50000 - £60000 per annum + benefits

Job Ref:

BB/14648/C/KS/200120_1579536530

Phone:

020 8016 4452

Apply Now
Full Stack Developer Ruby React

Posted 7 days ago

Full Stack Developer (Ruby React Redux). Would you like to join a successful technology driven start-up and work as part of a relaxed, motivated team? Joining a small technology team you will design and develop high quality software that allows managers at large organisations to drive business improvements. You'll work across the full stack developing complex backend systems, algorithms and testing new approaches for enhancing the intelligence of the platform as well as helping to scale the platform as they enter new markets, through to displaying data using React / Redux on the UI. Partnering with stakeholders you will understand the needs of customers and work across the full development lifecycle, owning and developing new features that improve the end-to-end user experience. You'll be based in a vibrant area of West End London in modern offices with a range of facilities and flexible working hours. Requirements: *Experience of building sca... Read More

Full Stack Developer (Ruby React Redux). Would you like to join a successful technology driven start-up and work as part of a relaxed, motivated team? Joining a small technology team you will desi... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£50000 - £60000 per annum + share options

Job Ref:

BB/12592/A/KS/200120_1579515010

Phone:

020 8016 4452

Apply Now
Python Developer / Backend Software Engineer

Posted 7 days ago

Python Developer / Backend Software Engineer (Python Golang AWS). Would you like to complex and interesting systems within a diverse, supportive environment whilst gaining valuable knowledge of banking applications? You could be joining a growing FinTech that are developing a complete retail banking platform that is capable of being configured to suit the needs of any bank. The product has been engineered from the ground up as a Cloud Native, microservice API architecture platform. As a Python Developer you will design, develop and implement scalable, performant microservices; write automated tests and work with clients to translate customer requirements into trackable tickets. You'll be working with other engineering teams to ensure that features are added in a structured and coherent manner. You'll be working in a technology driven environment with regular tech talks and will have your voice heard on suggestions for improvements and the intr... Read More

Python Developer / Backend Software Engineer (Python Golang AWS). Would you like to complex and interesting systems within a diverse, supportive environment whilst gaining valuable knowledge of ba... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£70000 - £100000 per annum + benefits

Job Ref:

BB/14635/A/KS/200120_1579513116

Phone:

020 8016 4452

Apply Now
Python Developer

Posted 10 days ago

Python Developer / Software Engineer (VFX Rendering 2D/3D Maya). Would you like to work in a friendly and creative tech environment on ground breaking Visual Effects for major TV shows and feature films (e.g. Peaky Blinders, Game of Thrones)? As a Python Developer you'll manage the whole lifecycle of the company's pipelines and tools. You'll partner closely with department leaders and the production team; assist in the design, implementation and scheduling of software tasks and provide day-to-day pipeline support for clients. You'll ensure your work is well documented and help mentor more junior team members in a collaborative Agile environment where code quality is paramount. Based in Central London you can enjoy a range of perks such as casual dress code and regular socials including beers on Friday. Requirements: *Python software development experience *TDD or Unit testing experience *Familiar with CI/CD *Experience with some or all of the ... Read More

Python Developer / Software Engineer (VFX Rendering 2D/3D Maya). Would you like to work in a friendly and creative tech environment on ground breaking Visual Effects for major TV shows and feature... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£65000 - £75000 per annum + benefits

Job Ref:

BB/14533/A/KS/170120_1579263007

Phone:

020 8016 4452

Apply Now
PHP Developer - FinTech

Posted 11 days ago

PHP Developer (Web PHP 7 CakePHP MVC MySQL CMS). Would you like to gain experience with financial trading systems whilst working in an informal atmosphere with a good work life balance (0900 to 1730 with flexibility), casual dress code, bright, funky offices and a peaceful work environment? City based trading firm is seeking a senior PHP Developer to design and develop a variety of web based systems. You'll be collaborating with other PHP Developers and the Front End team on key development tasks including developing new CakePHP CMS solutions, PHP / JavaScript coding, systems and data integration, operating across the full development lifecycle from scoping solutions through to unit testing. Requirements: *Strong PHP development experience, ideally including CakePHP (or Zend, Symfony, YII, Laravel) *Experience of developing CMS (Content Management System) and / or intranets *Good knowledge of MySQL *Experience working in an Agile development t... Read More

PHP Developer (Web PHP 7 CakePHP MVC MySQL CMS). Would you like to gain experience with financial trading systems whilst working in an informal atmosphere with a good work life balance (0900 to 17... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£55000 - £65000 per annum + bonus + benefits

Job Ref:

BB/14090/E/KS/160120_1579163618

Phone:

020 8016 4452

Apply Now
Backend Software Engineer - Python Ruby AWS

Posted 12 days ago

Backend Software Engineer (Python Ruby AWS Java Salesforce SaaS). FinTech start-up is seeking a highly technical Backend Software Engineer with a broad range of knowledge. Their capital market tools are used by Investment Banks and independent research providers to automate and analyse client service and research consumption, presenting a complete overview of the client relationship made available via the Cloud. As a Backend Software Engineer you'll join an Agile XP development team that take a "best tool for the job" approach to technology - the core platform is built on a mix of Java, Python, force.com and Ruby on Rails running on both Amazon AWS and Heroku; JavaScript is also a key technology as it's a very user focussed product. You'll be part of a collaborative team using Pair Programming and driving the use of modern development approaches such as Continuous Integration and DevOps type automation. Offices based close to the Silicon round... Read More

Backend Software Engineer (Python Ruby AWS Java Salesforce SaaS). FinTech start-up is seeking a highly technical Backend Software Engineer with a broad range of knowledge. Their capital market too... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£50000 - £65000 per annum + benefits

Job Ref:

BB/14721/B/KS/150120_1579104820

Phone:

020 8016 4452

Apply Now
Salesforce Administrator / Architect

Posted 19 days ago

Salesforce Administrator / Architect (APEX Lightning Visualforce Canvas). Do you have expertise with Salesforce? You could be joining a tech incubator within a global InsureTech business. As a Salesforce Administrator / Architect you will build a business critical Salesforce Lightning platform used for policy management by their ever increasing client base. You will take ownership and utilise your mixture of technical and business skills to recommend solutions; architect, design and develop them building a team around you. You'll act as an SME for the business and work with other Software Architects, providing expertise to capability roadmaps and the overall technical landscape. Based in Central London you'll join an upbeat team of technologists and will have access to a wide range of facilities at the parent companys' nearby offices including a gym, restaurant, workspaces etc. Requirements: *Indepth knowledge of Salesforce with extensive deve... Read More

Salesforce Administrator / Architect (APEX Lightning Visualforce Canvas). Do you have expertise with Salesforce? You could be joining a tech incubator within a global InsureTech business. As a Sal... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£85000 - £100000 per annum + bonus + benefits

Job Ref:

BB/14574/B/KS/080120_1578485926

Phone:

020 8016 4452

Apply Now
Lead Full Stack Developer PHP JavaScript

Posted 20 days ago

Lead Full Stack Developer / Engineer (PHP CakePHP JavaScript MySQL). Are you a web technologist seeking a senior role where you can make a real impact? You could be joining a global trading firm and heading up a team of Full Stack Developers whilst enjoying a good work / life balance with flexible working. As a Lead Full Stack Developer you will oversee the ongoing architectural evolution of web based trading systems; managing code quality, setting and maintaining coding standards and managing web deliverables throughout the full software development lifecycle. You'll build a high performing team of backend, frontend and full-stack developers through coaching, mentoring and recruitment, fostering a culture of continual improvement. Although the role is largely hands-off you will assist with development of new features to ensure a deep understanding of the codebase. You'll be working in an informal atmosphere in the City with a good work life b... Read More

Lead Full Stack Developer / Engineer (PHP CakePHP JavaScript MySQL). Are you a web technologist seeking a senior role where you can make a real impact? You could be joining a global trading firm a... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£85000 - £100000 per annum + bonus + benefits

Job Ref:

BB/14549/C/KS/070120_1578398444

Phone:

020 8016 4452

Apply Now
Senior Software Engineer - Distributed Systems

Posted 21 days ago

Senior Software Engineer / Backend Developer (Node Golang Elixir). Would you like to be solving hard distributed system problems that are mostly platform agnostic and theoretical in nature; working with a highly talented team of technologists in an Agile environment with flexible working (including working from home)? As a Senior Software Engineer you'll take a lead role in the design and development of new features and improvements to the core platform - a distributed, real-time engine integrated to clients to enable things such as Live Chat, real-time scoring, real-time location tracking, live documentation sharing, MMO games and eLearning to name but a few. The platform is written in Node with elements of Golang and Elixir; you'll use a range of technology which is constantly under review, you'll be able to suggest new technologies and contribute to open source projects that the company supports or integrates into the product. You'll be bas... Read More

Senior Software Engineer / Backend Developer (Node Golang Elixir). Would you like to be solving hard distributed system problems that are mostly platform agnostic and theoretical in nature; workin... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£90000 - £105000 per annum + benefits

Job Ref:

BB/14267/D/KS/060120_1578325128

Phone:

020 8016 4452

Apply Now
Salesforce Developer / Architect - FinTech

Posted about 2 months ago

Salesforce Developer / Architect (apex lightning visualforce canvas). Would you like to take ownership and make an impact? You could be joining a tech incubator within a global FinTech. As a Salesforce Developer / Architect you will build a business critical Salesforce Lightning platform used for policy management by their ever increasing client base. You will take ownership and utilise your mixture of technical and business skills to recommend solutions; architect, design and develop them building a team around you. You'll act as an SME for the business and work with other Software Architects, providing expertise to capability roadmaps and the overall technical landscape. Based in Central London you'll join an upbeat team of technologists and will have access to a wide range of facilities at the parent companys' nearby offices including a gym, restaurant, workspaces etc. Requirements: *Indepth knowledge of Salesforce with extensive developmen... Read More

Salesforce Developer / Architect (apex lightning visualforce canvas). Would you like to take ownership and make an impact? You could be joining a tech incubator within a global FinTech. As a Sales... Read More

Job Type:

Permanent

Location:

London, England

Salary:

£85000 - £100000 per annum + bonus + benefits

Job Ref:

BB/14574/C/KS/051219_1575535866

Phone:

020 8016 4452

Apply Now

Showing 1-5 of 355 Jobs

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