senior javascript developer

Spectrum IT Recruitment

Senior React Developer <ul> <li>React, TypeScript, API, HTML, CSS, JavaScript</li><li>Fareham, Hampshire. This role is to work in the office full time.</li><li>Salary circa £40,000 - £60,000 plus benefits</li></ul> In 2023, cybercrime cost UK businesses an estimated £21 billion. But don't think its the just the big corporates at risk, the average cybercrime value in the UK is just over £10,000 demonstrating that personal finance and small business cybercrime is rife. Would you like to be part of the solution? We are working with an award winning leader in the field of cyber security. They are on a mission to build a safer digital world for you and your future self! They have built a suite of innovative products designed to offer superior protection against a broad spectrum of online threats. The role of Senior React Developer is a new position in the team demonstrating the increasing demand for a robust cyber solution. Working with a talented software team you will be helping to plan and develop security solutions, migration to improved cloud services and help with support and maintenance of security and storage services. On top of a competitive salary (approx £45k - £60k) the company offer some fantastic financial and lifestyle benefits including; free access to local gym, onsite chef (free cooked breakfast & lunch!), childcare vouchers, cycle to work scheme, pension, BUPA healthcare, investment in training and personal development. Technical Skills: <ul> <li>HTML</li><li>CSS</li><li>TypeScript</li><li>React</li><li>JavaScript object model</li><li>JavaScript preprocessors eg webpack, Rollup, Babel</li><li>SCSS / LESS</li><li>Knowledge of performance testing frameworks Mocha and Jest</li></ul> The company offers a competitive salary, exposure to new technology, career progression and a great working environment with a talented team. Interviews are being held within the next couple of weeks so please get in touch via email or give me a call on the following or call Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Senior ReactJS Developer

Preesoft

Company: Preesoft Pvt Ltd Location: Johar Town, Lahore Experience Required: 2+ Years Position Type: Full-time (On-site) Joining: Immediate preferredWe are looking for a Senior MERN Stack Developer who can lead complex modules, write scalable code, and guide junior developers. The ideal candidate must have strong command over React.js, Node.js, Express.js, MongoDB, and modern JavaScript concepts.Requirements:<ul><li>2+ years of hands-on MERN stack experience</li><li>Strong knowledge of JavaScript, ES6+, and TypeScript (plus point)</li><li>Experience with RESTful APIs &amp; backend architecture</li><li>Strong understanding of database design (MongoDB)</li><li>Experience with Git, GitHub, and deployment</li><li>Ability to lead juniors and review code</li><li>Good communication and analytical skills</li></ul>Responsibilities:<ul><li>Develop scalable and high-performance web applications</li><li>Lead project modules and provide technical guidance</li><li>Collaborate with cross-functional teams for smooth delivery</li><li>Optimize performance and troubleshoot issues</li><li>Write clean, reusable, and documented code</li></ul>Job Type: Full-timePay: Rs75,000.00 - Rs120,000.00 per monthWork Location: On the road

Urgently Hrirng Senior MERN Stack Developer (On-site)

Suadeo

<div>
 
 
 Company Description
 
 
 
 Suadeo is a French software company established in 2004, specializing in delivering an innovative Self BI Platform, Suadeo Designer&reg;. This platform integrates Data Governance and Data Visualization (DataViz) to empower non-IT users with autonomy in data analysis, reporting, and decision-making processes. By enabling real-time data governance, secure data lifecycle management, and easy access to a comprehensive suite of Business Intelligence tools, Suadeo provides businesses with the freedom to conduct in-depth data analytics. With headquarters in Ivry-sur-Seine, France, and offices in Switzerland and Dubai, Suadeo serves a diverse portfolio of clients in both the public and private sectors globally.
 
 
 
 
 
 
 Role Description
 
 
 
 This is a full-time on-site Senior Front-End Developer (JavaScript/JQuery) role located in Dubai. The role involves designing, developing, and implementing user-friendly front-end features using JavaScript and JQuery. The developer will work collaboratively with cross-functional teams to ensure seamless integration with back-end systems, optimize applications for maximum speed, and enhance user experiences through responsive web design. Additionally, responsibilities include troubleshooting and resolving performance issues and staying updated on emerging web development trends and technologies.
 
 
 
 
 
 
 Key Responsibilities
 
 
 <ul>
 <li>
 Design, develop, and maintain responsive, high-performance web applications using
 
 JavaScript (ES6+), TypeScript, and jQuery
 
 .
 </li>
 <li>
 Implement and optimize DOM manipulation, event handling, and dynamic UI updates for interactive content.
 </li>
 <li>
 Integrate front-end components with RESTful APIs to ensure robust and scalable client-server interactions.
 </li>
 <li>
 Use
 
 defer
 
 and
 
 async
 
 attributes appropriately for loading JavaScript files to enhance page load performance.
 </li>
 <li>
 Work with
 
 Figma or similar tools
 
 to convert modern UI/UX designs into clean, reusable, and modular components.
 </li>
 <li>
 Implement best practices in CSS, including layout techniques (Flexbox, Grid), specificity management, and cross-browser compatibility.
 </li>
 <li>
 Optimize applications for
 
 First Contentful Paint (FCP)
 
 and
 
 Time to Interactive (TTI)
 
 by understanding DNS resolution, TLS handshakes, and script execution timing.
 </li>
 <li>
 Apply advanced knowledge of JavaScript&rsquo;s
 
 event loop, callback queues, and asynchronous programming
 
 to deliver smoother UI experiences.
 </li>
 <li>
 Write and differentiate between
 
 arrow functions and traditional functions
 
 to ensure correct this binding and memory usage.
 </li>
 <li>
 Conduct thorough code reviews, write unit tests, and contribute to ongoing codebase quality and refactoring efforts.
 </li>
 <li>
 Stay updated with emerging front-end technologies and contribute to internal knowledge sharing and innovation.
 </li>
 </ul>
 
 
 
 
 
 Required Qualifications
 
 
 <ul>
 <li>
 
 5+ years
 
 of professional experience as a Front-End Developer.
 </li>
 <li>
 Strong command of
 
 JavaScript (ES6+), TypeScript, jQuery, HTML5, and CSS3
 
 .
 </li>
 <li>
 In-depth understanding of the
 
 DOM, event loop, async/defer
 
 , and browser rendering processes.
 </li>
 <li>
 Experience integrating and managing asynchronous data via
 
 REST APIs
 
 .
 </li>
 <li>
 Familiarity with concepts like
 
 DNS resolution
 
 and
 
 TLS handshake
 
 and their impact on performance.
 </li>
 <li>
 Proficient in CSS methodologies (
 
 BEM, SCSS
 
 ) and responsive design patterns.
 </li>
 <li>
 Strong experience working with
 
 Git, Agile/Scrum
 
 , and CI/CD practices.
 </li>
 <li>
 Solid understanding of
 
 arrow functions vs traditional functions
 
 and their implications on scope and this binding.
 </li>
 <li>
 Hands-on experience with
 
 Figma, Adobe XD
 
 , or similar prototyping tools.
 </li>
 <li>
 Excellent debugging, optimization, and performance tuning skills.
 </li>
 <li>
 Strong communication and teamwork capabilities.
 </li>
 </ul>
 
 
 
 
 
 Preferred Qualifications
 
 
 <ul>
 <li>
 Bachelor&rsquo;s degree in Computer Science, Information Technology, or a related discipline.
 </li>
 <li>
 Familiarity with tools such as
 
 Webpack, ESLint, Prettier
 
 , and modern front-end build pipelines.
 </li>
 <li>
 Experience performing front-end performance audits using
 
 Lighthouse, Chrome DevTools
 
 , and Core Web Vitals.
 </li>
 </ul>
 
 
 
 
 Note: Only Candidate inside the UAE
 
</div>

Senior Front-End Developer (JavaScript/JQuerry)

Andesoft Consulting Pvt. Ltd.

Position: Senior React Native Developer Location: Mumbai Experience: 3+ years Education: Bachelor&rsquo;s degree in Computer Science, Engineering, or equivalent experience.About the Role We are looking for a Senior React Native Developer responsible for developing and maintaining high-quality mobile applications for both iOS and Android platforms. The ideal candidate should have strong technical expertise, leadership capabilities, and a passion for building scalable and user-centric mobile solutions.Key Responsibilities:&middot; Design, develop, and maintain robust, scalable, and secure mobile applications using React Native, JavaScript (ES6+), and TypeScript.&middot; Lead and contribute to architectural discussions, ensuring the application structure follows best practices and remains maintainable.&middot; Identify and resolve performance bottlenecks to ensure smooth and responsive user experiences across multiple devices and platforms.&middot; Manage the end-to-end app publishing and release lifecycle for the Google Play Store and Apple App Store.&middot; Collaborate effectively with designers, product managers, and backend developers to deliver seamless and high-quality features.&middot; Conduct code reviews, maintain coding standards, and mentor junior developers by providing technical guidance and training.&middot; Stay updated with the latest trends, tools, and best practices in the React Native ecosystem and recommend improvements where applicable.Required Skills&middot; Minimum 3+ years of hands-on experience developing, maintaining, and optimizing mobile applications using React Native.&middot; Strong proficiency in JavaScript (ES6+), TypeScript, React, and the React ecosystem.&middot; Solid experience with state management libraries such as Redux / Redux Toolkit, Zustand, etc.&middot; Hands-on experience with react-navigation, Push Notifications, Deep Linking, App Permissions, and Offline Storage.&middot; Strong understanding of native build tools (Xcode, Android Studio, Gradle) with the ability to integrate native modules.&middot; Experience working with REST APIs Third party libraries, and WebSockets.&middot; Good understanding of mobile UI/UX standards and responsive design patterns.&middot; Strong knowledge of mobile application lifecycle, deployment, and release processes.&middot; Excellent problem-solving, analytical, and communication skills.&middot; Understanding of mobile security best practices.Benefits:&middot; Paid sick time&middot; Paid time off&middot; Provident FundSchedule: Day shiftAbout Andesoft Consulting Pvt Ltd: http://www.andesoftconsulting.com The primary business verticals we specialize in are Healthcare, Financial Services, Logistics and Workforce Management.Job Types: Full-time, PermanentPay: &#8377;500,000.00 - &#8377;1,000,000.00 per yearAbility to commute/relocate:<ul><li>Tardeo, Mumbai, Maharashtra: Reliably commute or planning to relocate before starting work (Required)</li></ul>Education:<ul><li>Bachelor's (Required)</li></ul>Experience:<ul><li>relevant work: 3 years (Required)</li></ul>Work Location: In person

Senior React Native Developer

HR Ways

About the job Senior Frontend Developer (On-site | Karachi | PKR Salary)About the company:&#65279; Hiring for the fastest-growing custom software development, AI-driven solutions, and digital transformation to help companies stay ahead in the tech landscape with 50+ workforce.About the Role &#65279;*We are looking for a highly experienced Senior React Developer* who is passionate about building scalable, high-performance web applications and driving frontend architecture decisions. You will take full ownership of the user interface, lead frontend strategy, and shape reusable component libraries and design patterns across the product.This is a senior-level role for someone who understands modern JavaScript, performance optimization, complex states, large-scale frontend architecture, and systems thinking. If you want to build world-class user experiences in a fast-paced engineering environment, this role is for you.Key Responsibilities<ul><li>Architect, build, and maintain advanced React applications with a focus on performance, scalability, and reliability.</li><li>Own critical frontend modules and deliver high-quality, reusable, and maintainable code.</li><li>Take part in high-impact product decisions, frontend architecture planning, and UI/UX collaboration.</li><li>Write clean, modular, well-documented code using modern JavaScript, TypeScript, ES6+, and React best practices.</li><li>Build reusable component libraries, hooks, and shared utils to improve development efficiency.</li><li>Improve application performance using advanced techniques such as memoization, virtualization, and lazy loading.</li><li>Integrate complex REST APIs, WebSocket, GraphQL, and state management solutions.</li><li>Establish coding standards, review PRs, and mentor junior developers.</li><li>Work closely with Design, Product, and Backend teams to deliver seamless end-to-end solutions.</li><li>Identify and resolve UI/UX issues, performance bottlenecks, and frontend defects.</li></ul>Required Technical Skills: 5+ years of professional experience in the React.js ecosystem.Expert-level skills in:<ul><li>React.js, React Hooks, Context API</li><li>Redux Toolkit / MobX / Zustand or equivalent state management</li><li>TypeScript and advanced JavaScript concepts</li><li>Component-driven architecture + reusable UI systems</li><li>Routing, dynamic rendering, client-side rendering strategies</li></ul>Deep understanding of:<ul><li>Web performance optimization and front-end design patterns</li><li>Modular and scalable UI design</li><li>Responsive design, grid systems, and cross-browser compatibility</li><li>Async programming, Promises, events, fetch/axios</li></ul>Strong experience with:<ul><li>Material UI, Ant Design, Tailwind, Styled Components, CSS-in-JS</li><li>WebSockets, REST APIs, GraphQL</li><li>Build tools like Webpack, Vite, Babel, or Turbopack</li></ul>Bonus Skills (Preferred)<ul><li>Experience with Next.js or other SSR frameworks.</li><li>Experience with micro-frontend architecture.</li><li>Knowledge of testing frameworks (Jest, Cypress, React Testing Library).</li><li>Experience building dashboards, multi-tenant applications, or enterprise systems.</li><li>Familiarity with CI/CD pipelines, Docker, cloud deployment, or DevOps.</li></ul>Soft Skills<ul><li>Problem-solving mindset with a strong attention to detail.</li><li>Self-driven, proactive, and able to take ownership of complex solutions.</li><li>Excellent communication and mentoring abilities.</li><li>Ability to work in a fast-moving environment with tight deadlines.</li></ul>What We Offer<ul><li>Opportunity to work on modern products and large-scale systems.</li><li>High autonomy, fast-moving environment, and ownership of product decisions.</li><li>Collaborative engineering culture and room to grow technically.</li></ul>Other Details:Experience: 5+ years &#65279;Location: Karachi (on-site) &#65279;Days &amp; Timings: Monday - Friday 12:00 PM - 9:00 PMApply at jobs@hrways.co (not com)&#65279;&#65279;About HR Ways: &quot;HR Ways is an award-winning Technical Recruitment Firm helping software houses and IT Product companies internationally and locally to find IT Talent. HR Ways is engaged by 300+ Employers worldwide, ranging from the world's biggest SaaS Companies to the most competitive Startups. We have entities in Dubai, Canada, the US, the UK, Pakistan, India, Saudi Arabia, Portugal, Brazil, and other parts of the world. Join our WhatsApp Channel https://shorturl.at/983az to stay updated or visit www.hrways.co to know more.&quot;Job Type: Full-timeWork Location: In person

Senior Frontend (React) Developer

FutureBlink

We are seeking a highly skilled and experienced Senior MERN Developer to join our dynamic team. The ideal candidate will be proficient in the core technologies of the MERN stack: MongoDB, Express.js, React.js, and Node.js. This position requires a deep understanding of modern web development practices and a proven track record in building and maintaining scalable web applications.Key Responsibilities:Design, develop, and maintain web applications using the MERN stack. Implement robust back-end services with Express.js and Node.js, and create efficient, reliable MongoDB databases. Develop user-facing features with React.js, ensuring optimal performance across devices. Preferably have knowledge of Redis and Next.js to enhance application performance and SEO. Utilize Git for version control and collaboration with the development team. Deploy and manage applications on cloud platforms such as AWS EC2 and Digital Ocean, ensuring high availability and scalability. Work closely with the development team to ideate software solutions, conduct code reviews, and ensure best practices in web development. Troubleshoot, debug, and upgrade existing software to improve performance and resolve issues. Stay abreast of developments in web applications and programming languages. Qualifications:Bachelor's degree in Computer Science, Information Technology, or a related field. Minimum of 1 year of experience as a MERN Stack Developer. Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Deep knowledge of React.js and its core principles, Node.js, Express.js, and MongoDB. Experience with Redis and Next.js is highly preferred. Proficient understanding of code versioning tools, such as Git. Experience with AWS EC2, Digital Ocean, or similar cloud services. Ability to write clean, readable code and a strong understanding of server-side logic. Excellent problem-solving skills and the ability to work in a fast-paced environment. Strong communication and teamwork skills, with the ability to work independently or as part of a team.Job Type: Full-timePay: &#8377;15,000.00 - &#8377;40,000.00 per monthExperience:<ul><li>total work: 2 years (Required)</li></ul>Work Location: Remote

Sr. MERN Developer

Walstar Technologies Pvt.Ltd

Job Title: React DeveloperLocation: KolhapurJob Type: Full-time Job Summary:We are seeking a skilled React Developer to build and maintain high-quality web applications. The ideal candidate will have hands-on experience with React.js and modern JavaScript, a strong understanding of front-end technologies, and the ability to turn UI/UX designs into functional components.Key Responsibilities:* Develop responsive web applications using React.js.* Build reusable components and front-end libraries.* Integrate RESTful APIs and handle state management (e.g., Redux, Context API).* Collaborate with designers, backend developers, and product teams.* Ensure cross-browser compatibility and performance optimization.* Participate in code reviews, testing, and debugging.Required Skills:* Proficiency in JavaScript (ES6+) and React.js.* Experience with HTML5, CSS3, and JavaScript frameworks.* Familiarity with version control systems (Git).* Understanding of component lifecycle, hooks, and state management.* Knowledge of RESTful APIs and front-end build tools like Webpack or Vite.Preferred Qualifications:1. Experience with TypeScript, Next.js, or testing tools like Jest.2. Understanding of CI/CD and agile development practices.3. Basic knowledge of Node.js or back-end integration.If anyone is interested then send resume on this no. -7447631681Qualification- BE, Btech, MCA, MCS (2021-2025)Job Type: Full-timeBenefits:<ul><li>Health insurance</li></ul>Work Location: In person

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