JavaScript Developer - Node.js/React.js

About the Company

The client is revolutionising the way businesses operate through cutting-edge technological solutions. Their focus is on developing intelligent agents and agentic workflows that automate processes and eliminate the need for human effort wherever possible. By leveraging

advanced AI and machine learning, they create systems that enhance productivity and drive efficiency.

Their expertise extends to the fintech, healthcare and medical technology sectors, where they develop innovative solutions that improve patient outcomes and streamline medical operations.

From medical devices to healthcare platforms, their work sits at the intersection of technology and medicine, pushing the boundaries of what's possible. The team is dedicated to continuous learning and growth, ensuring the team members are always at the forefront of the tech landscape.

About the Role

This is a senior, hands-on engineering role at the heart of our product team. You will be one of the most technical people in the room — setting the architecture for our real-time voice AI

agents and building the hardest parts of it yourself. From the systems that power live conversations to the interfaces our clients rely on, you will own how the product is engineered end to end.

We are looking for a genuine lead full-stack engineer with the depth to make architecture decisions that hold up as we scale, and the appetite to still be in the code every day. You should be as comfortable designing the backend services behind a live voice agent as you are shaping a clean interface on top of them — and comfortable being the person others turn to when something is hard.

You will work directly with the founder and product leadership on a fast-moving product, with real influence over technical direction. This is a role for someone who wants ownership at the level of "how the whole thing is built," not just individual features — and who raises the bar for

everyone around them.

What You'll Own

Set the technical direction

• Own the architecture of our core systems — the real-time voice agents, backend
• services, data and APIs — making the decisions that keep the product fast, reliable and scalable as it grows.
• Lead the hardest engineering problems and solve them personally.
• Establish engineering standards — code quality, review practices, testing and technical patterns that the team builds to.
• Drive technical strategy with the founder and product leadership — shaping the roadmap, flagging risk early, and turning product ambition into a sound technical plan.

Build the product end to end

• Design, build and ship features across the stack — backend services, APIs and front-ends — owning them from idea to production.
• Build the client-facing surfaces — dashboards, review tools and configuration interfaces that let our clients run and trust the product.
• Design and evolve the data models and APIs that hold up as we scale across clients.

Make it reliable and fast

• Own production quality — put the monitoring and alerting in place so issues are caught before clients feel them, and performance stays within target.
• Care about performance — find and fix bottlenecks across the stack.
• Build for correctness — put the testing and evaluation in place that keeps the product behaving predictably as it changes.

Lead through the team

• Mentor and grow engineers — through code review, pairing, and setting a technical example others learn from.
• Multiply the team's output — unblock others and lift the overall quality of the codebase.
• Take features from ambiguity to done — turn a rough product goal into a shipped, working capability with minimal hand-holding, and help others do the same.

What We're Looking For

• 8+ years of professional software engineering experience, with significant depth across both backend and frontend and a track record of owning systems, not just features.
• Strong backend engineering, ideally in Python — building and scaling production services and APIs.
• Strong frontend engineering with a modern framework such as React — able to architect and build polished, responsive interfaces independently.
• Proven architecture and system-design ability — you have designed systems that scaled, and can reason clearly about trade-offs.
• Solid fundamentals across APIs, databases and cloud infrastructure.
• Experience building real-time and/or AI-powered products — or clear, demonstrable ability to lead in this area.
• A history of technical leadership — setting standards, mentoring engineers, and being trusted with the hardest problems — while remaining hands-on.
• Excellent communication and a genuine ownership mindset — someone who can be handed an ambiguous, high-stakes problem and be trusted to see it through.

Nice to Have

• Experience working with AI / large language models in production.
• Experience with voice or other real-time products.
• Exposure to healthcare, fintech, or other regulated / high-stakes domains.
• Experience as an early or senior engineer in a startup, where you set direction and wore many hats.

🚀 Hiring: MERN Stack Developer

⭐ Experience: 3+ Years

📍 Location: Mumbai ( Andheri East)

⭐ Work Mode:- 5 Days Work From Office

⏱️ Notice Period: Immediate Joiners

(Only immediate joiners & candidates serving notice period)

💡 Interview Mode - Walkin Interview

We are looking for a MERN Stack Developer skilled in MongoDB, Express.js, React.js, and Node.js to build scalable, high-performing web applications.

💫 What We’re Looking For:

✅ Proficiency in React.js, Node.js, Express.js, MongoDB

✅Strong in JavaScript (ES6+), REST APIs, Git

✅Good problem-solving & debugging skills

About the role:

We are looking for a PHP developer, responsible for the development and maintenance of the Websites, CMSs, Services, APIs and MySQL databases (writing procedures and complex queries). The developer will be a part of a full-stack team of engineers.

You will be responsible for -

● Hands on experience in Core PHP and MySQL Database.

● Good experience of relational databases, database keys and joins.

● Clear understanding of Object Oriented Programming, CSS, HTML layout.

● Strong experience in JavaScript, Ajax, Jquery and secure REST API.

● Strong skills in JSON parsing as well as XML for fetching data into the application

● Good knowledge of the application deployment process using FTP.

● Basic knowledge of Unix Command / environment

● Should be able write the code independently.

● Knowledge of PHP frameworks and CMS.

● Candidate should be able to follow Best Practices as they apply to coding Languages

● Collaborate with cross-functional teams to define, design, and implement features.

● Unit-test code for robustness, including use cases, usability, and general reliability.

● Identify and correct bottlenecks, work on bug fixing and improving application

performance

● Continuously discover, evaluate, and implement new technologies to maximize

development efficiency

● Must have specific experience and ability to understand business requirements and

translate them into technical / coding requirements.

● Proficient in understanding of code versioning tools, such as Git.

● Must have strong communication skills and be able to think out of the box to

implement defined business logic with minimal impact and revisions.

● Contribute in all phases of the development lifecycle.

Qualification & Experience:

● Engineering Graduate or Post Graduate.

● BS degree in Information Technology, Computer Science or equivalent

● 3 Years of Professional Experience.

Qualification & Experience:

● Engineering Graduate or Post Graduate.

● BS degree in Information Technology, Computer Science or equivalent

● 3 Years of Professional Experience.

Outfy(www.outfy.com) is a prominent Social media tool for online business headquartered in US and has a full fledged offshore development centre in Noida. We specialize in providing cutting-edge solutions to businesses aiming to enhance their online presence. As a Lead Developer, you will play a pivotal role in shaping the technological landscape of our platform.

Responsibilities:

• Lead the development and maintenance of our React web application and Node.js backend services.
• Collaborate with cross-functional teams to design, develop, and implement robust and scalable solutions.
• Architect and build efficient and reusable code for future use.
• Mentor and guide junior developers, fostering a collaborative and knowledge-sharing environment.
• Stay updated on emerging technologies and trends, incorporating them into our development processes.

Requirements:

• Proven experience (8-10 years) as a React Web and Node.js Developer.
• Strong proficiency in JavaScript/TypeScript and its modern frameworks/libraries.
• Extensive knowledge of front-end and back-end technologies, with expertise in React and Node.js.
• Experience working with RESTful APIs and microservices architecture.
• Solid understanding of the entire web development process, including design, development, and deployment.
• Leadership and mentoring skills with the ability to guide a team effectively.
• Ability to work independently and efficiently in a fast-paced environment.

• Experience with JavaScript and ReactJs framework.
• Experience with NodeJs, Firebase and Firestore Functions.
• Candidates should have the ability to pick up new technologies quickly
• Knowledge of code versioning tools (such as Git, Mercurial, or SVN)

1. Creating and converting high-fidelity designs into code.
2. Assist with creating cross-platform UI Web components
3. Build responsive applications using front-end frameworks
4. Create Backend services for the UI and test with edge cases.
5. Test components using new technologies

1. Apply for your CV and past work to be reviewed.
2. Receive a telephonic interview or assessment upon filling the final step form.
3. Receive offer letter if selected.

We are looking for a highly skilled computer programmer who is comfortable with both front and back end programming. Full stack developers are responsible for developing and designing front end web architecture, ensuring the responsiveness of applications, and working alongside graphic designers for web design features, among other duties.

Full stack developers will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail.

Full Stack web developer responsibilities:

• Developing front end website architecture.
• Designing user interactions on web pages.
• Developing back-end website applications.
• Creating servers and databases for functionality.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Designing and developing APIs.
• Staying abreast of developments in web applications and programming languages.

Job Types: Full-time, Fresher

Salary: ₹25,000.00 - ₹55,000.00 per month

• Ability to translate Wireframes and PSD Designs into functional web apps using HTML5, AngularJS, React , Node.js, and Mongo

• Binding of UI elements to JavaScript object models

• Creating RESTful services with Node.js

• Architect scalable web architectures

• Work in a cross-functional team to deliver a complete user experience

• Create Unit and Integration tests to ensure the quality of code

• Be responsive to change requests and feature requests

• Write code that is cross-platform and cross-device compatible

• Ability to wear many hats and learn new technologies quickly

Job Description :

• In-depth understanding of the entire web development process (design, development and deployment)
• Experience building complex web application.
• Hands on experience with programming stacks like MEAN, MERN, LAMP
• Participate in software/product development from ideation to deployment and beyond.
• Should have good knowledge on build tools like Maven, NPM, NODEJS.
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers; awareness of cross-browser compatibility issues and client-side performance considerations
• Should have a good understanding of database concepts.
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles
• Experience with popular React.js workflows (such as Flux or Redux)
• Familiarity with code versioning tools (such as Git, VSTS)
• Working knowledge of Agile/SCRUM development methodologies and best practices.
• Ability to understand business requirements and translate them into technical requirements
• Working on Cloud[AWS/Azure] based environment is a huge plus
• Recommending new policies, approaches, and procedures.

Responsibilities :

• Ability to work with project delivery goal as mindset.
• Use advanced modelling tools & techniques to build full stack applications.
• Strong understanding on how to document and create a functional plan for complex project.
• Knowledge of creating Information Architecture, Server Architecture & State-flow diagram to better understand complex project.
• Ability to take risks, strive for learning & implementing new practice with maintaining project deliverables.
• Be seen as a leader for a group of engineers working to quickly design, prototype and build new features per requirement.
• Strong ability to handle a naive team & able to get the required output delivered.
• Build scalable/reusable code and libraries for future use.
• Interact with other team leads and departments to accomplish a project requirement.