javascript developer

Opus Recruitment Solutions

<div>
 
 Node.js Developer (Full Stack)
 
 
 Location: London
 
 
 Security Clearance:
 
 Must hold active DV Clearance
 
 
 
 Employment Type: Contract (flexible)
 
 
 Duration: 6 Months
 
 
 
 
 
 
 Overview
 
 
 
 We are seeking an experienced DV Cleared Node.js Developer to join a high-performing engineering team working on secure, mission-critical systems. This is a fantastic opportunity to contribute to complex projects within a highly secure environment, using modern technologies across both backend and frontend development.
 
 
 You will play a key role in designing, developing, and maintaining scalable applications, working closely with cross-functional teams in an Agile environment.
 
 
 
 
 
 
 Key Responsibilities
 
 
 
 Design, develop, and maintain robust backend services using Node.js
 
 
 Build secure, scalable APIs and microservices architectures
 
 
 Develop responsive and user-friendly frontend components using modern frameworks
 
 
 Collaborate with UX/UI designers to deliver high-quality user experiences
 
 
 Work within Agile / Scrum teams, contributing to sprint planning and delivery
 
 
 Ensure code quality through testing, code reviews, and best practices
 
 
 Maintain and improve system performance, security, and reliability
 
 
 Integrate with third-party systems and internal services
 
 
 Work in highly secure environments adhering to strict compliance requirements
 
 
 
 
 
 
 
 
 
 Required Skills &amp; Experience
 
 
 
 
 Backend
 
 
 
 
 
 
 Strong commercial experience with Node.js (Express.js / NestJS preferred)
 
 
 Experience building RESTful APIs and microservices
 
 
 Good understanding of asynchronous programming and event-driven architecture
 
 
 Familiarity with databases such as MongoDB, PostgreSQL, or similar
 
 
 Knowledge of authentication and security best practices (OAuth, JWT, etc.)
 
 
 
 
 
 
 Frontend
 
 
 
 
 
 
 Solid experience with modern frontend frameworks such as:
 
 
 
 
 
 React, Angular, or Vue.js
 
 
 
 
 
 
 
 
 Strong proficiency in JavaScript / TypeScript
 
 
 Experience with HTML5, CSS3, and responsive design
 
 
 Understanding of UI/UX principles
 
 
 
 
 
 
 General
 
 
 
 
 
 
 Experience with Git and version control workflows
 
 
 Familiarity with CI/CD pipelines and DevOps practices
 
 
 Experience working in Agile environments
 
 
 Strong problem-solving and communication skills
 
 
 
 
 
 Desirable Skills
 
 
 
 
 
 Experience with cloud platforms (AWS, Azure, or GCP)
 
 
 Knowledge of containerisation technologies (Docker, Kubernetes)
 
 
 Familiarity with infrastructure as code (Terraform, CloudFormation)
 
 
 Experience in secure or government environments
 
 
 Understanding of testing frameworks (Jest, Mocha, Cypress)
 
 
 
 
 
 Security Requirements
 
 
 
 
 
 Active DV Clearance is essential
 
 
 (Candidates must currently hold valid clearance to be considered)
 
</div>

Javascript Developer

YO IT Consulting

<div>
 
 Job Title:
 
 Software Engineering
 
 
 
 Job Type:
 
 Contractor (10-12 hours per week)
 
 
 
 Location:
 
 Remote
 
 
 
 Job Summary
 
 
 
 We are looking for experienced software engineers to help train and evaluate next-generation AI systems through real-world software engineering tasks. This role is best suited for developers who can reason through unfamiliar codebases, explain engineering decisions clearly, and solve practical backend, full-stack, systems, or infrastructure-related problems.
 
 
 No prior AI experience is required. What matters most is strong software engineering judgment, clean technical communication, and the ability to evaluate code, architecture, tradeoffs, and implementation quality.
 
 
 
 Key Responsibilities
 
 
 
 <ul>
 <li>
 Work on challenging software engineering tasks across backend, full-stack, infrastructure, and systems-related projects.
 </li>
 <li>
 Review, debug, improve, and explain code across different technical environments.
 </li>
 <li>
 Design or evaluate practical solutions involving APIs, databases, services, integrations, testing, and deployment workflows.
 </li>
 <li>
 Identify tradeoffs around scalability, maintainability, performance, reliability, security, and developer experience.
 </li>
 <li>
 Communicate technical reasoning clearly in writing, including why a solution works and what alternatives were considered.
 </li>
 <li>
 Collaborate with the customer&rsquo;s team on technical reviews, implementation decisions, and problem-solving exercises.
 </li>
 <li>
 Adapt quickly to new codebases, frameworks, and technical requirements.
 
 
 </li>
 </ul>
 
 Required Skills And Qualifications
 
 
 
 <ul>
 <li>
 5+ years of hands-on software engineering experience.
 </li>
 <li>
 Strong experience in at least one backend or full-stack engineering environment, such as Python, JavaScript/TypeScript, Node.js, Java, C#, .NET, C++, Go, Ruby, PHP, or similar.
 </li>
 <li>
 Experience building, maintaining, or reviewing production-level applications, APIs, services, databases, or integrations.
 </li>
 <li>
 Strong understanding of software engineering fundamentals, including debugging, testing, code quality, architecture, and technical tradeoffs.
 </li>
 <li>
 Ability to explain complex engineering decisions clearly and objectively.
 </li>
 <li>
 Comfortable reading and reasoning through unfamiliar code or technical requirements
 
 
 </li>
 </ul>
 
 Preferred Qualifications
 
 
 
 <ul>
 <li>
 Experience with cloud environments such as AWS, GCP, or Azure.
 </li>
 <li>
 Experience with CI/CD pipelines, DevOps workflows, containers, monitoring, or production operations.
 </li>
 <li>
 Experience with frontend frameworks such as React, Next.js, Angular, Vue, or React Native.
 </li>
 <li>
 Open-source contributions, public GitHub work, technical writing, or strong examples of past engineering work.
 </li>
 <li>
 Experience mentoring engineers, reviewing code, or making architecture decisions.
 </li>
 </ul>
</div>

JavaScript/TypeScript Developer - Remote

Client Server

<div>
 
 
 
 Full Stack Developer / Engineer (Kotlin AWS JavaScript) Amsterdam to &euro;85,000
 
 
 
 
 
 
 
 Are you a skilled Full Stack Developer looking for an opportunity to progress your career whilst working with a modern tech stack and continually improving your skills?
 
 
 
 
 
 You could be joining a scaling, global FinTech company, working on a successful product that helps global companies to achieve sustainability and NetZero targets via Blockchain technology solutions.
 
 
 
 
 
 As a Full Stack Developer you will work across the full technology stack with a focus on Kotlin backend systems but also with some front end (JavaScript, Angular / React) work. You'll quickly gain an understanding of the complete ecosystem of the modern, distributed application with a broad scope of work including AWS, mobile applications, trading and transfer functionality and integration of 3rd party platforms.
 
 
 
 
 
 This is an opportunity to work on worthwhile technology that is helping to increase decarbonisation whilst working on complex and interesting systems with continual learning opportunities.
 
 
 
 
 
 
 WFH Policy:
 
 
 
 You'll join colleagues in the Amsterdam office two days a week with flexibility to work from home the other three days.
 
 
 
 
 
 
 About you:
 
 
 <ul>
 <li>
 You have strong serverside Kotlin experience (Java background is good)
 </li>
 <li>
 You have experience with Spring Boot and microservices
 </li>
 <li>
 You have a thorough understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures
 </li>
 <li>
 You have a good knowledge of AWS
 </li>
 <li>
 You have a good understanding of CI/CD, DevOps
 </li>
 <li>
 You also have some JavaScript, Angular, React front end skills
 </li>
 <li>
 You're collaborative, enjoy problem solving and continually learning
 </li>
 <li>
 You're keen to work in a start-up / scale-up environment with lots of ownership
 </li>
 </ul>
 
 
 
 
 
 What's in it for you:
 
 
 <ul>
 <li>
 Salary to &euro;85,000
 </li>
 <li>
 Flexible working in a relaxed technology focussed environment
 </li>
 <li>
 Continual learning and self-development opportunities
 
 
 </li>
 </ul>
 
 
 
 
 
 Apply now
 
 to find out more about this Full Stack Developer / Engineer (Kotlin AWS JavaScript) opportunity.
 
</div>

Full Stack Developer Kotlin AWS JavaScript - Start-up

Capco

<div>Senior Frontend Developer (React) - Edinburgh

Location: Edinburgh (Hybrid) | Practice Area: Technology &amp; Engineering | Type: Permanent

Bring modern web applications to life in the world of financial services

The Role

As a Senior Frontend Developer at Capco, you'll craft clean, responsive, and secure web applications that enhance digital experiences for global financial clients. Working in an agile environment, you'll help shape UI solutions using React and modern JavaScript technologies. You'll play a key role in both hands-on development and guiding best practices across teams.

What You'll Do
<ul>
<li>Build performant and maintainable user interfaces using React (Hooks, Context Suspense) and Typescript</li>
<li>Develop responsive cross-browser compatible layouts using modern CSS (Flexbox, Grid), CSS-in-JS or modular CSS, and component libraries such as MUI or Tailwind</li>
<li>Optimise application performance using techniques like code-splitting, memorization, and lazy loading.</li>
<li>Ensure secure application development following OAuth2, OpenID Connect, and JWT principles</li>
<li>Collaborate closely with backend, design, and product teams to shape engaging user journeys</li>
<li>Contribute to team learning through code reviews, mentoring, and sharing best practices</li>
</ul>
What We're Looking For
<ul>
<li>Strong proficiency in JavaScript (ES5/ES6+) and Typescript</li>
<li>Hands-on experience building production application in React 18+</li>
<li>Solid understanding of state management (Context API, Redux Toolkit, or similar)</li>
<li>Experience consuming RESTful APIs and handling async data with modern patterns</li>
<li>Strong CSS skills including Flexbox, Grid, and CSS pre-processors like SASS/LESS</li>
<li>Familiarity with modern build and tooling ecosystems such as Vite, Webpack or similar</li>
<li>Experience with frontend testing using Jest, React Testing Library, Cypress or Playwright</li>
<li>A passion for UI performance, quality, and delivering clean code</li>
</ul>
Bonus Points For
<ul>
<li>Exposure to Vue, Angular, or Next.js in production environments</li>
<li>Understanding of secure application design and frontend performance optimisation</li>
<li>Experience deploying applications in CI/CD pipelines</li>
<li>Working knowledge of design systems, component-driven development and tools like Storybook</li>
<li>Strong debugging skills and ability to work in fast-paced agile teams</li>
<li>Curiosity for new technologies and experimentation</li>
</ul>
Why Join Capco
<ul>
<li>Deliver high-impact technology solutions for Tier 1 financial institutions</li>
<li>Work in a collaborative, flat, and entrepreneurial consulting culture</li>
<li>Access continuous learning, training, and industry certifications</li>
<li>Be part of a team shaping the future of digital financial services</li>
<li>Help shape the future of digital transformation across FS &amp; Energy.</li>
</ul>
Benefits

We offer a competitive, people-first benefits package designed to support every aspect of your life:
<ul>
<li>Core Benefits: Discretionary bonus, competitive pension, health insurance, life insurance and critical illness cover.</li>
<li>Mental Health: Easy access to CareFirst, Unmind, Aviva consultations, and in-house first aiders.</li>
<li>Family-Friendly: Maternity, adoption, shared parental leave, plus paid leave for sickness, pregnancy loss, fertility treatment, menopause, and bereavement.</li>
<li>Family Care: 8 complimentary backup care sessions for emergency childcare or elder care.</li>
<li>Holiday Flexibility: 5 weeks of annual leave with the option to buy or sell holiday days based on your needs.</li>
<li>Continuous Learning: Your growth, your way - minimum 40 hours of training annually. Take your pick; workshops, certifications, e-learning. Also, Business Coach assigned from Day One: Get one-on-one guidance to fast-track your goals and accelerate your development.</li>
<li>Healthcare Access: Convenient online GP services.</li>
<li>Extra Perks: Gympass(Wellhub), travel insurance, Tastecard, season ticket loans, Cycle to Work, and dental insurance.</li>
</ul>
Inclusion at Capco We're committed to making our recruitment process accessible and straightforward for everyone. If you need any adjustments at any stage, just let us know &ndash; we'll be happy to help. We value each person's unique perspective and contribution. At Capco, we believe that being yourself is your greatest strength. Our #BeYourselfAtWork culture encourages individuality and collaboration &ndash; a mindset that shapes how we work with clients and each other every day.

#LI-DNI</div>

Senior Frontend Developer - React

Datamatics Global Services Ltd

<div><h1 class="jobSectionHeader">Frontend Developer (0&ndash;8 Years Experience)</h1><h2 class="jobSectionHeader">
Job Title: Frontend Developer</h2><h2 class="jobSectionHeader">
Experience: 0&ndash;8 Years</h2><h2 class="jobSectionHeader">
Location:</h2><h2 class="jobSectionHeader">
Job Summary</h2>
We are seeking a passionate and skilled Frontend Developer to build modern, responsive, and high-performance web applications. The ideal candidate should have experience developing user interfaces using modern JavaScript frameworks, collaborating with cross-functional teams, and delivering scalable frontend solutions.<h2 class="jobSectionHeader">
Key Responsibilities</h2><ul><li>
Design, develop, and maintain responsive web applications.</li><li>
Build reusable UI components and optimize applications for maximum performance.</li><li>
Collaborate with UX/UI designers, backend developers, and product teams.</li><li>
Integrate frontend applications with RESTful APIs and backend services.</li><li>
Write clean, maintainable, and well-tested code following industry best practices.</li><li>
Troubleshoot, debug, and improve application performance.</li><li>
Participate in code reviews and contribute to continuous improvement initiatives.</li></ul><h2 class="jobSectionHeader">
Must Have Skills</h2><ul><li>
JavaScript (ES6+) AND TypeScript</li><li>
React.js OR Next.js OR Vue.js OR Angular OR Svelte OR Nuxt.js</li><li>
Webpack OR Vite OR Rollup OR Parcel OR esbuild OR Turbopack</li><li>
HTML5 AND CSS3 AND Responsive Web Design</li><li>
REST APIs AND JSON AND API Integration</li><li>
Git AND GitHub OR GitLab OR Bitbucket</li><li>
npm OR Yarn OR pnpm</li><li>
Understanding of frontend architecture, reusable components, and responsive design principles.</li><li>
Strong debugging, problem-solving, and communication skills.</li></ul><h2 class="jobSectionHeader">
Good to Have Skills</h2><ul><li>
Redux OR Context API OR Zustand OR Pinia OR Vuex</li><li>
Jest OR Vitest OR React Testing Library OR Cypress</li><li>
CI/CD tools such as GitHub Actions OR GitLab CI OR Jenkins</li><li>
Cloud platforms such as AWS OR Azure OR Google Cloud Platform (GCP)</li><li>
CSS frameworks such as Tailwind CSS OR Bootstrap OR Material UI (MUI) OR Chakra UI</li><li>
Build optimization and performance tuning techniques.</li><li>
Knowledge of accessibility standards (WCAG) and SEO best practices.</li><li>
Experience working in Agile/Scrum environments.</li></ul><h2 class="jobSectionHeader">
Preferred Qualifications</h2><ul><li>
Bachelor's degree in Computer Science, Software Engineering, or a related field.</li><li>
0&ndash;8 years of frontend development experience.</li><li>
Ability to work independently as well as collaboratively in a team environment.</li><li>
Passion for learning new frontend technologies and best practices.</li></ul>
n3RDKfttQR</div>

Frontend Developer

Premier Services and Recruitment

<div>
 
 
 Role Summary:
 
 
 
 We are looking for a distinguished Software Architect with 4 to 8 years of experience who has expertise in designing and developing applications over Cloud Technologies, proficient in building and designing pages with UI components and Interactive scripts using JavaScript in addition to Java/Python Knowledge for backend development and with ability for System thinking, familiarity with design patterns in code development, technical support and knowhow transfer for software developers.
 
 
 
 
 
 
 Responsibilities
 
 
 
 
 Front End Development:
 
 
 
 Collaborate with cross-functional teams to design and develop user-friendly interfaces. Implement responsive and interactive web applications using modern front-end technologies, with a primary focus on JavaScript. Ensure the technical feasibility of UI/UX designs and optimize applications for maximum speed and scalability.
 
 
 
 JavaScript Development:
 
 
 
 Utilize your expertise in JavaScript to build robust and maintainable front-end code. Stay updated on the latest trends and best practices in front-end development to continuously improve the quality of our applications.
 
 
 
 SQL Integration:
 
 
 
 Design and implement SQL database solutions to support front-end functionalities.
 
 
 Can Work on Oracle, MySQL.
 
 
 Work closely with backend developers to ensure seamless integration between front-end and backend systems.
 
 
 
 Testing and Debugging:
 
 
 
 Conduct thorough testing of applications to identify and fix bugs, ensuring a smooth user experience.
 
 
 Collaborate with QA/Testing teams to implement effective testing strategies.
 
 
 
 Technical Leadership for the team:
 
 
 
 Knowhow transfer for the team
 
 
 Build and Review LLDs
 
 
 Review codes to ensure clean code correct structure
 
 
 
 Documentation:
 
 
 
 Create and maintain detailed documentation for code, processes, and system architecture.
 
 
 Assist in the preparation of technical documentation for end-users.
 
 
 
 
 
 
 Technical Skills Required
 
 
 <ul>
 <li>
 Experience in JavaScript (ECMA6)/jQuery/REST/SOAP/HTML5/CSS3.
 </li>
 <li>
 creating responsive and intuitive user interfaces using JavaScript and have a strong foundation in SQL
 </li>
 <li>
 Experience in developing responsive components (charts, Dashboard).
 </li>
 <li>
 Experience in developing good User Interfaces (UI).
 </li>
 <li>
 Experience in integration with reporting tools or 3rd party applications with integration Protocols (Telnet, SSH, SNMP, Etc).
 </li>
 <li>
 Basic knowledge for Linux/UNIX Operating System with basic Scripting Knowledge.
 </li>
 <li>
 Must be motivated, independent and self-sufficient.
 </li>
 <li>
 Able to receive an assigned task and see it through to completion with minimal supervision.
 </li>
 <li>
 Familiarity with RESTful APIs and web services.
 </li>
 <li>
 Knowledge of SEO principles.
 </li>
 <li>
 Debug errors, troubleshoot issues, and perform routine performance optimizations.
 </li>
 <li>
 A proactive attitude towards continuous learning and staying updated on the latest trends, technologies, and best practices in front-end development.
 </li>
 <li>
 DB knowledge is a Must.
 </li>
 <li>
 LLD design and review
 </li>
 <li>
 System thinking ability
 </li>
 <li>
 Familiarity with design patterns in code development
 </li>
 </ul>
 
 
 
 
 
 Qualifications
 
 
 <ul>
 <li>
 Bachelor's degree in Computer Science, Engineering, or related field.
 </li>
 <li>
 Working experience for 4-8 years in software development.
 </li>
 <li>
 Proven experience as a Front-End Developer with a strong focus on JavaScript development.
 </li>
 <li>
 Solid understanding of SQL and experience in database design and integration.
 </li>
 <li>
 Proficiency in modern front-end frameworks/libraries such as React or Vue.js.
 </li>
 <li>
 Experience with version control systems (e.g., Git) and build tools.
 </li>
 <li>
 Experience working in an Agile development environment, participating in sprints, and collaborating with cross-functional teams.
 </li>
 <li>
 Experience in creating responsive and mobile-friendly user interfaces to ensure a consistent user experience across various devices
 </li>
 <li>
 Strong problem-solving skills and attention to detail.
 </li>
 </ul>
 
 
 
</div>

Software Architect

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916 javascript developer jobs Near Me

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JavaScript/TypeScript Developer - Remote

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Full Stack Developer Kotlin AWS JavaScript - Start-up

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Frontend Developer

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