senior javascript engineer

Fission Labs

<div><p><b>Why Fission Labs</b><b>:</b></p><p>
With a humble beginning in 2010, Fission Labs was born with a simple aim to leverage our engineering capabilities and help Start-ups overcome technological challenges.<br>
After a decade, Fission Labs is a family of over 350+ seasoned engineers with product development at heart and years of experience developing custom solutions and pioneering digital transformation across various technology verticals, including AI/ML, Data Engineering, and Cloud solutions.<br>
Fission Labs is a Software Product Development &amp; Services company delivering high-end solutions primarily in the areas of highly scalable cloud applications and analytics for large sets of data. Few of the challenges we are working on are scaling an application to support 150 million users, real-time bidding with response time requirements of 100 ms or less. If you are somebody who wants to work on big challenges and change the world, we have those opportunities in spades.<br>
Website Link: https: www.fissionlabs.com</p>
<p><b>
Why you&rsquo;ll love working here:</b></p>
<ul><li>
Bring your passion and fun. Corporate culture woven from highly diverse perspectives and insights.
</li><li>Balance work and personal time like a boss. Resources and flexibility to more easily integrate your work and your life.
</li><li>Become a certified &ldquo;smarty pants.&rdquo; Ongoing training and development opportunities for even the most insatiable learner.
</li><li>Start-up spirit (Good ten plus years, yet we maintain it)
</li><li>Flexible working hours
</li></ul>
<p><b>What to tell your friends &amp; family:</b></p>
<ul><li><b>
Great Place to work Certified</b>
</li><li>AWS Certified technology Partner</li></ul>
<p><b>
Job Description:</b></p>
<p>
A JavaScript developer who loves writing code that is understandable and efficient (we mean it).<br>
A person with sense of ownership - Say you find a problem, you find a solution as well for it by partnering with the rest of the team. Make it happen attitude, to put it simple!</p>
<ul><li>
3 - 8 years of software development experience in a test-driven environment
</li><li>A Strong JavaScript developer with a good working knowledge in OOJS, ReactJs, Redux
</li><li>Experience designing responsive SPA(single page application)
</li><li>Should be able to communicate effectively - especially with technical audience.
</li><li> Experience in developing projects from scratch, right from ideation to delivery
</li><li>A strong leader who can take ownership and work closely with others to strive with maximum impact
</li></ul>
<p> <b>Requirements</b>:</p>
<ul><li>
B.E / B.Tech / M.E / M.Tech / M.S / MCA graduate (preferably from a reputed college or University) with a total experience of 3-8 years
</li><li>Expertize in OOJS, JavaScript
</li><li>Expertize in React framework building and testing SPA&rsquo;s
</li><li> Must have implemented REST API Concepts along with contract negotiation with backend team.</li></ul></div><p></p>

Senior Javascript Engineer (ReactJS framework)

Creative Chaos

<div><h3 class="jobSectionHeader"><b>Job Summary</b></h3>
<p>A Senior Software Engineer for Node is an associate at Creative Chaos who is mainly responsible for developing server applications of various software platforms including but not limited to writing Restful APIs to be consumed by client applications. A senior software engineer makes sure that the functionality, security and performance of the server application is as per the design and is completely bug free. Senior engineers have a responsibility to mentor their juniors and build team strength through training.</p><h3 class="jobSectionHeader"><b><br>
Duties &amp; Responsibilities</b></h3><ul>
<li>Analyze business requirements</li>
<li>Estimate assigned tasks</li>
<li>Write code and unit tests</li>
<li>Collaborate with other team members</li>
<li>Tune your code for enhanced security and performance</li>
<li>Maintain systems by fixing any existing issues</li>
<li>Update issue tracking software</li>
<li>Provide status updates</li>
<li>Communicate with client</li>
<li>Control versions of your code</li>
<li>Research new technologies</li>
<li>Lead a team of software engineers</li>
<li>Mentor team members through training and guidance</li>
<li>Upgrade skills and knowledge</li>
<li>Evaluate candidates for open positions</li>
</ul><p><b>Requirements</b></p><ul>
<li>Minimum Bachelors in Computer Science/Software Engineering or equivalent.</li>
<li>Minimum 3-5 years of related experience in professional industry</li>
<li>Strong communication skills</li>
<li>Strong proficiency in Javascript technologies</li>
<li>Knowledge of NodeJS and its available frameworks such as ExpressJS and NestJS</li>
<li>Knowledge and experience in writing backend components and Restful APIs</li>
<li>Understanding of security standards and compliances</li>
<li>Experience with different relational and schemaless databases such as MySQL, PostgreSQL and MongoDB</li>
<li>Creating database structure for the required functionality</li>
<li>Experience with writing unit tests and ensuring the minimum 90% test coverage</li>
<li>Knowledge of and experience with Github, JIRA and other collaboration tools</li>
<li>Understanding of fundamental concepts and design principles</li>
<li>Basic understanding of front-end technologies</li>
<li>Flexible attitude and versatile personality</li>
<li>Strong presentation skills</li>
<li>Strong influence among team members</li>
</ul><p><b>Benefits</b></p><ul>
<li>Paid Time Off</li>
<li>Work From Home</li>
<li>Health Insurance</li>
<li>OPD</li>
<li>Training and Development</li></ul></div>

Senior Software Engineer - Node

<div>
 <strong>
  Job Summary
  <br/>
  <br/>
 </strong>
 A Senior Software Engineer for Node is an associate at Creative Chaos who is mainly responsible for developing server applications of various software platforms including but not limited to writing Restful APIs to be consumed by client applications. A senior software engineer makes sure that the functionality, security and performance of the server application is as per the design and is completely bug free. Senior engineers have a responsibility to mentor their juniors and build team strength through training.
 <br/>
 <br/>
 <strong>
  Duties &amp; Responsibilities
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Analyze business requirements
  </li>
  <li>
   Estimate assigned tasks
  </li>
  <li>
   Write code and unit tests
  </li>
  <li>
   Collaborate with other team members
  </li>
  <li>
   Tune your code for enhanced security and performance
  </li>
  <li>
   Maintain systems by fixing any existing issues
  </li>
  <li>
   Update issue tracking software
  </li>
  <li>
   Provide status updates
  </li>
  <li>
   Communicate with client
  </li>
  <li>
   Control versions of your code
  </li>
  <li>
   Research new technologies
  </li>
  <li>
   Lead a team of software engineers
  </li>
  <li>
   Mentor team members through training and guidance
  </li>
  <li>
   Upgrade skills and knowledge
  </li>
  <li>
   Evaluate candidates for open positions
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Requirements
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Minimum Bachelors in Computer Science/Software Engineering or equivalent
  </li>
  <li>
   Minimum 3-5 years of related experience in professional industry
  </li>
  <li>
   Strong communication skills
  </li>
  <li>
   Strong proficiency in Javascript technologies
  </li>
  <li>
   Knowledge of NodeJS and its available frameworks such as ExpressJS and NestJS
  </li>
  <li>
   Knowledge and experience in writing backend components and Restful APIs
  </li>
  <li>
   Understanding of security standards and compliances
  </li>
  <li>
   Experience with different relational and schemaless databases such as MySQL, PostgreSQL and MongoDB
  </li>
  <li>
   Creating database structure for the required functionality
  </li>
  <li>
   Experience with writing unit tests and ensuring the minimum 90% test coverage
  </li>
  <li>
   Knowledge of and experience with Github, JIRA and other collaboration tools
  </li>
  <li>
   Understanding of fundamental concepts and design principles
  </li>
  <li>
   Basic understanding of front-end technologies
  </li>
  <li>
   Flexible attitude and versatile personality
  </li>
  <li>
   Strong presentation skills
  </li>
  <li>
   Strong influence among team members
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Benefits
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Paid Time Off
  </li>
  <li>
   Work From Home
  </li>
  <li>
   Health Insurance
  </li>
  <li>
   OPD
  </li>
  <li>
   Training and Development
  </li>
 </ul>
</div>


Rocktech Digital

<p><b>Job Summary</b></p><p>We are looking for an experienced and motivated Senior MEAN Stack Engineer to join our innovative team. The ideal candidate will be a hands-on leader, responsible for developing new features, mentoring junior developers, and enhancing our application's architecture and performance. You will play a pivotal role in driving our technical vision forward and ensuring the delivery of high-quality software.</p><p><b>Key Responsibilities</b></p><ul><li>Lead the design and development of new features using modern web technologies, ensuring code is clean, scalable, and follows best practices.</li><li>Mentor and guide junior developers through code reviews, pair programming, and technical leadership.</li><li>Architect and execute complex technical projects, such as large-scale codebase migrations and modernizations.</li><li>Establish and maintain efficient local development environments using containerization and cloud service emulation.</li><li>Successfully implement critical backend integrations with third-party systems and APIs.</li><li>Proactively maintain and update project dependencies to ensure application security and performance.</li><li>Integrate and manage tools for system monitoring, logging, and performance analysis.</li><li>Implement and utilize feature flagging platforms to enable beta testing and phased rollouts of new features.</li></ul><p><b>Qualifications and Skills</b></p><ul><li>Proven professional experience as a Senior Software Engineer or in a similar role.</li><li>Expert-level proficiency with the MEAN stack: <b>MongoDB</b>, <b>Express.js</b>, <b>Angular</b>, and <b>Node.js</b>.</li><li>Strong command of front-end technologies including <b>TypeScript</b>, <b>JavaScript</b>, <b>HTML</b>, and <b>SCSS/CSS</b>.</li><li>Demonstrated experience with modern development tools and libraries such as <b>Webpack</b>, <b>Tailwind CSS</b>, and <b>Jest</b>.</li><li>Hands-on experience with containerization technologies (<b>Docker</b>) and cloud services (e.g., <b>AWS</b>, <b>Azure</b>).</li><li>Familiarity with data interoperability standards (e.g., <b>HL7</b>, <b>RESTful APIs</b>) is highly desirable.</li><li>Experience with application performance monitoring (APM) and observability tools.</li><li>Strong problem-solving skills and the ability to work effectively in a fast-paced environment.</li><li>Excellent communication and mentorship abilities.</li></ul><p>Job Type: Full-time</p><p>Pay: Rs350,000.00 - Rs400,000.00 per month</p><p>Work Location: In person</p>

Senior MEAN Stack Engineer

Intella

<div><p><b>Job brief</b></p><p>
We&rsquo;re on the lookout for a Senior Frontend Engineer to join our engineering team, where you&rsquo;ll have the opportunity to work on cutting-edge web and mobile applications. In this role, you&rsquo;ll craft rich, responsive user experiences, participate in product design, and develop new features using the latest in web technologies.</p><p>
You&rsquo;ll focus on creating reusable code, optimizing applications for speed and scalability, and contributing to our UI framework. If you&rsquo;re passionate about building interactive experiences that delight users and have a keen eye for detail, we&rsquo;d love to hear from you. Join us in shaping the future of recruiting software by applying your expertise in frontend development.</p><p><b>
Responsibilities</b></p><ul>
<li>Work on rich, responsive browser experiences, as well as mobile-first applications and PWAs</li>
<li>Participate in product design sessions and contribute to feature development</li>
<li>Code in TypeScript &amp; ES10, utilizing the latest React and CSS frameworks</li>
<li>Deliver reusable code and contribute to the in-house UI framework</li>
<li>Optimize applications for maximum speed, scalability, and user experience</li>
<li>Apply computer science patterns and discover new programming paradigms</li>
<li>Utilize modern web technologies for a variety of projects, including module federation and micro-frontends</li>
<li>Establish best practices, suggest new technologies, and design high-quality solutions</li>
</ul><p><b>Requirements</b></p><p><b>
Requirements and skills</b></p><ul>
<li>Highly proficient with JavaScript and JavaScript frameworks</li>
<li><b>Experience in React JS is a must
</b></li><li><b>4+ years of experience in frontend development
</b></li><li>Solid understanding of HTML5, CSS3/4, and web design principles</li>
<li>Experience with Git, unit, and integration testing</li>
<li>Comfortable with TypeScript (preferred)</li>
<li>Understanding of SEO principles, web accessibility, and technical writing (bonus)</li>
<li>Experience with CI/CD pipelines (bonus)</li>
</ul><p><b>Benefits</b></p><p>
Join Intella and be part of a team that's shaping the future of AI and making a difference in the world. If you're ready to tackle exciting challenges and drive AI innovation, we want to hear from you</p></div>

Senior Frontend Engineer

Trade Quo Global Ltd

<p>We are seeking a highly skilled <b>Senior React Engineer</b> to join our engineering team. You will be responsible for designing, developing, and optimizing web applications with a strong focus on performance, scalability, and user experience.</p><p>This role requires strong technical expertise in React and front-end best practices, as well as the ability to collaborate with cross-functional teams.</p><p><b>You will</b>:</p><ul><li>Develop and maintain high-quality front-end applications using React.js and modern JavaScript (ES6+).</li><li>Collaborate with product managers, designers, and backend engineers to deliver seamless features.</li><li>Optimize applications for maximum performance, responsiveness, and scalability.</li><li>Implement best practices for code quality, testing, and maintainability.</li><li>Stay updated with the latest front-end technologies and frameworks</li><li>Contribute to architectural decisions for scaling applications globally.</li></ul><p><b>What makes you a great fi</b>t:</p><ul><li>5+ years of professional experience in front-end development, with at least 3 years in React.js.</li><li>Strong proficiency in JavaScript, TypeScript, HTML5, CSS3, Tailwind 4 CSS framework and responsive design principles.</li><li>Experience with state management libraries (Redux).</li><li>Familiarity with RESTful APIs and WebSockets.</li><li>Strong understanding of frontend build tools (Vite).</li><li>Experience with testing frameworks (Jest, React Testing Library).</li><li>Knowledge of CI/CD pipelines and Git workflows.</li><li>Strong problem-solving and communication skills.</li><li>No legacy code.</li></ul><p><b>Nice to Have</b></p><ul><li>Experience in fintech, trading platforms, or high-performance apps.</li><li>Exposure to cloud platforms (Azure).</li><li>UI/UX design appreciation and ability to work with design systems (Figma, Storybook).</li></ul><p>Job Type: Full-time</p><p>Pay: From AED15,000.00 per month</p><p>Application Question(s):</p><ul><li>How many years of professional experience do you have in React.js?</li><li>Are you familiar with testing frameworks like Jest or React Testing Library?</li><li>What is your expected monthly salary (AED)?</li><li>What is your current notice period?</li></ul>

Senior Frontend Engineer (React.js)

HRG Group

<div><div><div><div><div><p>Baner, Pune, Maharashtra, India</p></div></div></div><div><p><br>
</p><p>
</p></div></div><div><div><div><div>Department</div><div>
Delivery Unit 2</div></div><div><div>
Job posted on</div><div>
Oct 08, 2025</div></div><div><div>
Employment type</div><div>
Permanent</div></div></div></div></div><div></div>
<br><div><div><b>Position - Senior Software Engineer - React.js + Node.js + GraphQL</b></div><div><b>
Experience - 5 to 6 Years</b></div><div><b>
Location- Pune (Hybrid) / Remote</b></div><div></div><div><b><br>
Key Skills:</b></div><div><br>
React, Modern JavaScript (ES6+), HTML5, CSS3</div><div>
Node.js, GraphQL, RESTful API design</div><div>
PostgreSQL, SQL (queries, stored procedures, functions)</div><div>
Cross-functional collaboration and teamwork</div><div>
Effective client and stakeholder communication</div><div>
Mentoring and leadership abilities</div><div>
Continuous learning and adaptability</div><div>
Problem-solving and troubleshooting</div><div><b><br>
Roles &amp; Responsibilities</b><br>
<b>Front-End (React)</b></div><div>
1. Design and develop responsive, high-performance web applications using React and modern JavaScript frameworks.</div><div>
2. Collaborate with UX/UI designers, backend developers, and product managers to deliver seamless user experiences.</div><div>
3. Write clean, maintainable, and scalable front-end code following industry best practices.</div><div>
4. Optimize applications for maximum speed and scalability.</div><div>
Conduct code reviews and mentor junior front-end developers.</div><div>
5. Stay up to date with emerging trends and technologies in front-end development.</div><div>
6. Communicate effectively with clients and stakeholders to gather requirements and provide timely updates.</div><div>
7. Collaborate with cross-functional teams and contribute to cross-team initiatives.</div><div><b>
Back-End (Node.js + GraphQL)</b></div><div>
1. Design and develop scalable, secure, and high-performance APIs using Node.js and GraphQL.</div><div>
2. Collaborate with front-end developers, database engineers, and product managers to deliver end-to-end solutions.</div><div>
3. Write clean, reusable, and well-documented backend code following best practices.</div><div>
4. Implement authentication, authorization, and other security measures.</div><div>
5. Optimize server-side performance and ensure efficient request/response handling.</div><div>
6. Conduct code reviews, troubleshoot issues, and mentor junior backend developers.</div><div>
7. Stay updated with emerging backend technologies, frameworks, and best practices.</div><div>
8. Database (PostgreSQL)</div><div>
9. Design, implement, and maintain relational database schemas optimized for performance and scalability in PostgreSQL.</div><div>
10. Write efficient SQL queries, stored procedures, and functions to support application logic.</div><div>
11. Integrate PostgreSQL with GraphQL resolvers for efficient data fetching and manipulation.</div><div>
12. Implement data security, encryption, and access control mechanisms in PostgreSQL.</div><div>
13. Stay current with advancements in PostgreSQL features, performance tuning techniques, and GraphQL best practices.</div></div>

Senior Software Engineer - React.js + Node.js + GraphQL

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