Find your next job or freelance mission Javascript

Software Engineer / Developer (JavaScript OpenUI) London / WFH to £70k Are you a bright, ambitious Software Engineer with strong front end JavaScript skills? You could be progressing your career at a global Investment Management company. As a Software Engineer you'll focus on building UI components on top of a no-code platform using JavaScript and OpenUI. You'll work across the full development lifecycle, liaising with users to gain a full understanding of requirements and configuring new automated processes and objects using core workflow principles that are efficient, well structured, maintainable and easy to understand. You'll also work with 3rd party vendors and oversee development fixes to the systems, ensuring they are implemented correctly. The role offers the opportunity to take ownership, work directly with users and excellent career progression. WFH Policy: There's a hybrid work from home policy with three days in the London office per week. About you: You have strong JavaScript skills and a good knowledge of APIs You have a good knowledge of SQL databases You have a good understanding of workflow based logic and the ability to both understand a business process from a workflow diagram and to illustrate a written process description as a workflow diagram You have a good appreciation of user interface design You're able to understand and convey complex technical information to non-technical users You have experience within a financial services / banking environment Experience with OpenUI would be great but you can also pick it up on the job if you have previous experience with React or Angular What's in it for you: As a Software Engineer / Developer you will earn a competitive salary (to £90k) plus a wide range of benefits including: Bonus Generous holiday allowance, 30 days Pension Private Medical Care £80 p/month to spend on wellness benefits such as gym membership, subscriptions, classes etc. Apply now to find out more about this Software Engineer / Developer (JavaScript OpenUI) 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 based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Job Description FrontEnd Developer with Javascript Using the latest technologies, processes and tools to deliver state of the art web applications and innovation experiments (PoCs) Be responsible for translating business requirements into robust, scalable and reusable solutions Working as part of multi-disciplinary agile pods with other technical, creative and business roles Participate in engineering discipline, best practice and standards compliance within Innovation Programme and HSBC IT Requirements: 3+ years' commercial experience The ideal candidates for this role will have expertise in the following: JavaScript / XX XX XX XX XX / jQuery / npm / CSS / Sass / Less / HTML 5 / bootstrap Experience in consuming REST APIs and utilising JSON for web applications CI/CD - tools such as Jenkins, Nexus Version control and collaboration - GitHub Knowledge is desirable, but not essential in the following: Microsoft SharePoint 2013/Online - publishing features Good working knowledge of cloud technologies like AWS, Azure and GCP Agile methodologies - Scrum, Kanban Agile Tooling - Jira, Confluence, Slack In addition to the details listed above, the ideal candidate will have a mindset of an Innovator: curious, meticulous, connected, creative and communicative The Client is based in Krakow Poland - you will be working remotely for now - but will require to be available for meetings in Krakow Poland. The salary for this role is up to PLN 16K per month. Please do send your CV to us in Word format along with you salary and availability.

Job Description FrontEnd Developer with Javascript Using the latest technologies, processes and tools to deliver state of the art web applications and innovation experiments (PoCs) Be responsible for translating business requirements into robust, scalable and reusable solutions Working as part of multi-disciplinary agile pods with other technical, creative and business roles Participate in engineering discipline, best practice and standards compliance within Innovation Programme and HSBC IT Requirements: 3+ years' commercial experience The ideal candidates for this role will have expertise in the following: JavaScript / XX XX XX XX XX / jQuery / npm / CSS / Sass / Less / HTML 5 / bootstrap Experience in consuming REST APIs and utilising JSON for web applications CI/CD - tools such as Jenkins, Nexus Version control and collaboration - GitHub Knowledge is desirable, but not essential in the following: Microsoft SharePoint 2013/Online - publishing features Good working knowledge of cloud technologies like AWS, Azure and GCP Agile methodologies - Scrum, Kanban Agile Tooling - Jira, Confluence, Slack In addition to the details listed above, the ideal candidate will have a mindset of an Innovator: curious, meticulous, connected, creative and communicative The Client is based in Krakow Poland - you will be working remotely for now - but will require to be available for meetings in Krakow Poland. The salary for this role is up to PLN 16K per month. Please do send your CV to us in Word format along with you salary and availability.

Job Description Senior Netsuite Developer Our Client is a leading company who are looking to recruit a Senior Netsuite Developer with Javascript and SQL with extensive Netsuite OneWorld expertise. You will have a degree in Computer Sciences or equivalent certifications. Must have technical working knowledge of NetSuite OneWorld Financials platform, including relevant NetSuite certifications. Ideally have at least 5 to 7 years experience of developing in Javascript and Oracle SQL in order to develop applications for Netsuite including a minimum 5 years in NetSuite OneWorld. Experience of full software delivery lifecycle including capturing business requirements, developing solutions, user testing & training, post go-live support and optimisation. Experience of integrating Finance packages with other strategic solutions including CRM and eCommerce platforms. Must be a creative thinker, with the ability to proactively identify areas for potential improvement (process and functionality). Have the ability lead initiatives and solution enhancements. With confidence and judgement to plan and accomplish goals. Ability to translate business/operational requirements into effective and efficient systems solutions. Experience to manage conflicting priorities/complex workload. You must have extensive experience of all NetSuite financial modules is essential, as is their interfacing with other platforms. The Client has offices in Holborn London. Please send your CV to us in Word format along with your rate along with your availability.

Job Description Full-Stack Javascript Developer - Central London Our Client is urgently looking to recruit a Full-Stack Java Developer with very strong Javascript development expertise. You must have at least 3 to 5 years experience as a Full-Stack Developer with Javascript fundamentals, design patterns, and OOP - Object Oriented Programming. So you must have at least 5 years front and back-end development expertise. For the Back-End part of the position you must have the following skills: Experience of Node JS or JAVA, PHP, Python - which are preferred along with strong problem solving and Data Structure. Must have excellent knowledge of HTML5 and CSS3 plus This is a 6 to 12 month assignment based in Central London. Please send your CV to us in Word format along with daily rate and availability.

Full Stack Developer / Engineer (PHP WordPress JavaScript Creative) London to £50k Are you a creative Full Stack Developer looking for an opportunity to progress your career? You could be joining a tech start-up that provides a platform for creative artists to gain experience and exposure to major brands, online as well as at a range of events, they have a growing community with over 20 thousand users so far. As a Full Stack Developer you'll be working on the main website, they're currently using WordPress and PHP but you'll help the transition over to more modern tech, using JavaScript and React. You'll join a small, energetic team where you can take ownership and make a real impact, progressing your career in line with company growth. Location / WFH: You'll join the team in a vibrant area of Central London two days a week with flexibility to work from home the other three days. About you: You have experience of building websites and products that have great user experience in PHP, WordPress, HTML, CSS, JavaScript, MySQL You have experience of managing websites on self hosted platforms You're keen to join a tech start-up in a role you can shape and influence You're collaborative with great communication skills What's in it for you: Salary to £50k Company equity Flexible working (x2 days London office) Opportunity to shape your role at a tech start-up Apply now to find out more about this Full Stack Developer / Engineer (PHP JavaScript Creative) 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 based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Job Description Front End Developer with React JS Our Client is looking to recruit a Front Software Developer with at least 2 to 4 years experience of working front end technology using React JS. This is an exciting new position to work with a small team of talented individuals. The salary for this role is in the range £30K - £33K. The Client is based in Norwich. Please send your CV to us in Word format along with your salary and availability.

Job Description Javascript Front End Developer - Central London JavaScript Engineer required to join a fast growing company and shape the future of payments cross-platform and cross-device? Evolving in an agile and collaborative environment, you will be part of a multidisciplinary and excellence-driven team and bring your solid native JavaScript skills and perspective to all projects that you're involved in. The role is uniquely positioned to be deeply involved in the entire product lifecycle, working side by side with Front-End & Back-End Developers, Architects and Designers towards a common goal: provide millions of online shoppers worldwide with the best possible payment experience. The ideal candidate must live and breathe agile and firmly believe in creating clean, testable code. Key Responsibilities Create intuitive, robust, and reusable user interfaces using Vanilla JS Build cross platform, cross browser, responsive HTML5 and CSS3 Engage in the entire product development cycle to understand business objectives and user goals, and ensure solutions offer true value to our customers Produce high quality solutions that will enhance or simplify existing processes Work with designers to promote brand and interface guidelines Encourage the use of best practices and workflows throughout the organization Contribute to team discussions and stand-ups Mentor Junior Team members Skills & Experience Excellent JavaScript (Vanilla) with code patterns Good knowledge of some JS frameworks (e.g. Angular, Backbone) Complete understanding of the full web stack Solid knowledge of CSS pre-processors (SASS, LESS) and HTML5 Knowledge of some server side languages (e.g. PHP, NodeJS) Knowledge of some client / server testing framework (e.g. Mocha, Jasmine, JUnit) Bilingual English and JavaScript Salary will be in the range £40K to £60K Per Annum. Please send your CV to us in Word format.

Job Description Frontend Software Developer with Javascript and HTML Our Client is looking to recruit Frontend Software Developer with at least 3 to 5 years experience of developing Frontend software with Javascript and HTML Working as part of the Digital team, you'll be responsible for and delivering some exciting frontend and UX improvements to an eCommerce website as well as other internal applications for this award-winning Luxury Travel Company. The Role You will be responsible for: Own the frontend of the eCommerce website, making continual improvements Collaborating with the back end developer and design resource to deliver improved UI & UX Participate in design discussions and be the voice of the customer on usability Skills and Experience: Excellent working knowledge of HTML, JavaScript, jQuery, CSS & React Framework Previously delivered multiple responsive websites Happy to develop from both wireframes and full designs Experience of working with and developing alongside a CMS (preferably with Umbraco) Capable of working with multiple (REST) APIs documented with e.g. OpenAPI/swagger and other API messaging formats e.g. JSON, XML, SOAP Good knowledge of technical SEO best practices, familiar with LightHouse on assessing page load times Worked in an agile/Kanban environment and familiar with JIRA and confluence Familiar with Git and source control The Clients offices are based in Central London and this role will be remote working. The salary for this role will be in the range £40K to £50K. Do send your CV to us in Word format along with your salary and availability.

Software Engineer / Developer (C# .Net Core AWS JavaScript) St Albans / WFH to £95k+ Do you have expertise with C# .Net backend development combined with JavaScript / Angular skills? You could be progressing your career in a senior hands-on role at a technology driven trading company that invest in Sports betting markets with a flat structure where you will get your voice heard and can make a real impact on the bottom line, earning significant bonuses. As a Software Engineer you'll join an Agile development team to design and develop new features and enhancements to complex Payments and client systems within a microservices environment (300 services). You'll be working with a modern tech stack using C# .Net Core, AWS, Kubernetes, Kafka, Redis and TypeScript / Angular; using the right tool for the job, you'll be able to pick up new technologies and make recommendations for improvements. WFH Policy: You'll join colleagues in St. Albans, Hertfordshire (parking available), 10 minute walk from local station, with the flexibility to work from home three days a week. About you: You have strong C# .Net Core backend development skills You have experience with AWS and microservices You have JavaScript experience, ideally also Angular although you can pick this up on the job You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms You're a technologist with an interest in System Design and understanding how things work at low level You enjoy collaborating, learning new things and sharing knowledge You are degree educated in Computer Science or closely related discipline What's in it for you: As a Software Engineer / Developer you will earn a competitive package: Salary to £95k Bonus 25 days holiday, rising to 30 after 2 years Enhanced parental leave Contributory pension scheme Private Medical MSDN subscription Discounts for gym membership, travel and cinema Sabbatical after 10 years of service Flexible working with 3 days remote Apply now to find out more about this Software Engineer / Developer (C# .Net Core AWS JavaScript) 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 based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Job Description Javascript and Agile Software Developer - Central London The Client Developer will be responsible for the development and delivery of all client side aspects of our product, developing new features and launching new platforms. A successful candidate will have a proven ability in delivering customer facing JavaScript applications, in an Agile software development environment and a passion for building a world class product. As part of the tech team, you will play a lead role in this by designing and building world leading streaming services across web, mobile and TV platforms, working on new feature releases and evolving the next phase of our application framework. With a rapidly expanding company; growth within the team and opportunities to lead engineering initiatives are abundant. We need people who want to help us build a strong engineering culture and a fun, vibrant workplace. You will deliver high quality, robust and testable code adhering to internal engineering procedures, code conventions and development methodologies. Contribute to comprehensive documentation that supports the development and support lifecycles. Work to continually improve software deployment to ensure iterative releases and rapid deployment of updates to our customers across all platforms. Mentoring and supporting other developers with their day-to-day work. Monitor system performance and resolve any issues or failures in staging or production environments. Must have experience with JavaScript (vanilla JS, prototypes, scoping, design patterns, memory profiling). Track record of successful software delivery through all phases of development, including coding standards, code reviews, source control management, build processes, testing, and operations. Working knowledge of object-oriented design, design patterns and extreme programming. Familiar with build automation and continuous integration 3Ability to write unit tests using JavaScript in a common library such as Jasmine. Any experience of the following sills would be pretty handy: NXX XX XX XX XX or other programming languages Cross-platform development preferable on smart TV and consoles Development of a high-profile digital video service Test driven development Experience with AWS, Docker, Kubernetes Experience of working in an Agile software development environment. Contract duration will be 6 months. Location is Central London. Please send your CV to us urgently for this contract assignment in Word format along with your daily rate and availability.

Full Stack Developer / Engineer (JavaScript 3D Robotics) London / WFH to £55k Opportunity as a JavaScript Full Stack Developer to progress your career at a "Tech for Good" start-up that is producing game changing technology for sustainable housing. As a Full Stack Developer you'll join a small team to build innovative web solutions for generative building design and robotic manufacturing connector applications. You'll work across the full stack, from backend microservices through to 3D modelling and rendering using Three.js, you'll also be working with JavaScript / TypeScript, Node.js, Express, Next.js and React, collaborating with Architects and Engineers to understand their requirements and expand the capabilities. Location / WFH: You can work form home most of the time, meeting up with colleagues in the East End of London once or twice a month. About you: You have Full Stack development experience and enjoy working with a range of technology You have strong JavaScript / TypeScript skills, for both backend and frontend development work You also have experience with related technologies such as Node.js, Express, Next.js, React, Three.js You have a good knowledge of databases, they use PostgreSQL and Prisma You're familiar with public cloud technologies (AWS, Azure or GCP) You have a good awareness of Security / OAuth 2.0 You have an interest in the environment / sustainability and are excited to work at a start-up What's in it for you: Salary to £55k Share options 28 days holiday (+ Bank Holidays and seasonal office closure) Health and Dental Insurance Remote working (1-2 days a month in the office) Opportunity to shape and progress your career in line with company growth Apply now to find out more about this Full Stack Developer / Engineer (JavaScript 3D Robotics) 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 based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Senior JavaScript Developer / Engineer (Vue.js) Billericay / WFH to £75k Are you a JavaScript web technologist seeking an opportunity to work with a modern tech stack on Greenfield projects? You could be progressing your career in a senior, hands-on role at an eCommerce payments solutions provider that has experienced great success in the last year and is growing as a result. As a Senior JavaScript Developer you will take ownership of projects within an Agile development environment, with a focus on Vue.js development to help evolve and scale the existing platforms as well as working on new Greenfield projects; you'll be able to take project ownership and manage all aspects of the frontend stack to produce white labelled Progressive Web Applications and Websites of the highest quality for a broad range of big name retail clients. You'll collaborate with UI/UX Designers to ensure technical feasibility, optimise applications for speed and scalability and build reusable code and libraries as well as pro-actively analysing and making suggestions for improvements and as a senior team member, provide mentoring and support to more junior team members. Location / WFH: You'll join the team two days a week in Billericay (free onsite parking), with flexibility to work from home the other three, there are also flexible working hours. About you: You have strong JavaScript and Vue.js experience You have experience of mentoring with strong technical project and people leadership skills You're also experienced with other web technologies such as HTML5, CSS, SASS; build technologies such as Webpack, Gulp and CLIs; REST APIs, GraphQL (you don't need them all as you'll be picking new things up on the job) You have a good understanding of browser rendering behaviour and performance You have a good appreciation of UI/UX design You have experience of working on high performance / high traffic websites, eCommerce experience would be great You're collaborative with good communication skills What's in it for you: As a Senior JavaScript Developer you will earn a competitive package: Salary (to £75k) Bonus 25 days holiday Pension Life assurance Private medical care Pizza days and other social events Hybrid working with flexible hours Apply now to find out more about this Senior JavaScript Developer / Engineer (JavaScript Vue.js) 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 based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Job Description Javascript and Agile Software Developer - Central London The Client Developer will be responsible for the development and delivery of all client side aspects of our product, developing new features and launching new platforms. A successful candidate will have a proven ability in delivering customer facing JavaScript applications, in an Agile software development environment and a passion for building a world class product. As part of the tech team, you will play a lead role in this by designing and building world leading streaming services across web, mobile and TV platforms, working on new feature releases and evolving the next phase of our application framework. With a rapidly expanding company; growth within the team and opportunities to lead engineering initiatives are abundant. We need people who want to help us build a strong engineering culture and a fun, vibrant workplace. You will deliver high quality, robust and testable code adhering to internal engineering procedures, code conventions and development methodologies. Contribute to comprehensive documentation that supports the development and support lifecycles. Work to continually improve software deployment to ensure iterative releases and rapid deployment of updates to our customers across all platforms. Mentoring and supporting other developers with their day-to-day work. Monitor system performance and resolve any issues or failures in staging or production environments. Must have experience with JavaScript (vanilla JS, prototypes, scoping, design patterns, memory profiling). Track record of successful software delivery through all phases of development, including coding standards, code reviews, source control management, build processes, testing, and operations. Working knowledge of object-oriented design, design patterns and extreme programming. Familiar with build automation and continuous integration 3Ability to write unit tests using JavaScript in a common library such as Jasmine. Any experience of the following sills would be pretty handy: NXX XX XX XX XX or other programming languages Cross-platform development preferable on smart TV and consoles Development of a high-profile digital video service Test driven development Experience with AWS, Docker, Kubernetes Experience of working in an Agile software development environment. Location is Central London. Please send your CV to us urgently for this contract assignment in Word format along with your salary and availability.

Job Description Senior Front End D3 Javascript Software Engineer - Holborn Our Client wants to recruit a Senior Front End Software Developer with at least 7 to 10 years expertise of working with D3 React and Javascript. You will be involved with creating sophisticated, robust and easy to use web apps whilst working in a close-knit team who solve complex problems, together. The Client works with very latest cutting edge Front End Technologies. You will be working to create data-heavy applications for the Company's principle client, a major management consultancy undergoing a large-scale digital transformation. Responsibilities • Delivering pixel-perfect, high-quality code in a timely manner. • Creating easy to use, easy to understand applications • Participate in technical discussions with technical leads and within your team. Key Skills Required: • Exceptional track record in delivering quality front end engineering solutions. • A thorough understanding of RXX XX XX XX XX and its core principles and workflows (such as Flux or Redux) • Data visualisation experience, including with D3.js • Experience with continuous integration, test automation, and monitoring You must have the following skills: • Strong proficiency in JavaScript, CSS, HTML including DOM manipulation and the JavaScript object model • Familiarity with RESTful APIs • Knowledge of modern authorization mechanisms, such as JSON Web Token • Familiarity with modern front-end build pipelines and tools • Experience with common front-end development tools such as Babel, Webpack, NPM, etc. • Familiarity with code versioning tools The Client is based in Holborn London. The salary for this role is in the range £70K - £90K. Please send your CV to us in Word format along with your salary and availability.

Job Description Front End Javascript Developer with Agile - Brighton Sussex Our Client is looking to recruit a Front End Software Developer with very strong experience in Javascript in an Agile environment. Must have experience with Agile development environment. Any experience with Angular JS framework knowledge would be very handy. Required knowledge and experience: • Significant experience with building, launching and managing simple and complex websites on the Adobe Experience Manager platform • Expert knowledge of web-based technologies: HTTP / HTTPS, HTML, JavaScript, CSS, Less, JQuery, Angular • A passion for technology and up-to-date with trends, new languages and design approaches in the IT space. • Experienced in designing scalable solutions, write efficient code, optimizing performance and debugging issues. • Comfortable working in a fast-paced, multi-tasking, dynamic environment . • Excellent communication skills with the ability to present complex technical information in a clear and concise manner to a variety of audiences, both technical and non-technical. Formal education or equivalent: • Degree or equivalent experience in Computer Science or IT related field • Higher degree desirable So key skills are Javascript in an Agile environment. This is a 6 month contract assignment in Brighton Sussex. Please send your to us in Word format urgently.