Tech Lead

We are looking for a MERN Stack Developer with 2+ years of real-world experience who thinks beyond CRUD APIs and UI screens. This role is for someone who understands how full-stack systems are designed, cares about scalability, performance, security, and clean architecture, and takes ownership of features end-to-end.

We value ownership, speed, clean code, and smart problem-solving. If you enjoy building products from scratch, thinking in systems, and shipping meaningful features—not just “finishing tasks”—this role is for you.

🧠 Key Responsibilities

• Design, develop, and maintain full-stack applications using MongoDB, Express, React, and Node.js
• Build scalable and maintainable backend APIs with proper validation, error handling, and security
• Develop clean, reusable, and performant React components
• Design database schemas and optimize queries for performance and scalability
• Translate product and business requirements into solid technical solutions
• Design frontend and backend architecture that can scale as the product grows
• Handle authentication, authorization, roles, and permissions
• Work with async operations, background jobs, and API integrations
• Manage application state properly (React state, context, or state libraries)
• Handle edge cases: loading, failure states, retries, and fallbacks
• Write clean, readable, and well-structured JavaScript / TypeScript code
• Follow and continuously improve coding standards and best practices
• Debug production issues using logs, reasoning, and root-cause analysis
• Review PRs, give constructive feedback, and contribute to team learning
• Work with designers to deliver good UX, not just “working UI”
• Collaborate closely with QA, design, and product teams
• Think ahead—identify technical debt, performance bottlenecks, and improvement areas
• Use AI tools responsibly to speed up development, debugging, and learning (with understanding)

✅ Qualifications Must Have

• 2+ years of hands-on experience with the MERN stack
• Strong knowledge of JavaScript and TypeScript, including OOP concepts
• Solid experience with Node.js & Express
• Hands-on experience with MongoDB, schema design, indexing, and aggregation
• Experience building and consuming REST APIs
• Strong understanding of async/await, promises, event loop
• Knowledge of HTML, CSS, responsive design (Tailwind / Bootstrap preferred)
• Experience with React hooks, component lifecycle, and state management
• Use React performance optimizations such as: React.memo useCallback, useMemo
• Implement code splitting and lazy loading using dynamic imports
• Work on or understand micro-frontend architecture and module federation
• Experience handling authentication (JWT, sessions, OAuth)
• Familiarity with Git, code reviews, and basic CI/CD concepts
• Exposure to real production issues (performance, bugs, scaling, failures, debugging)

Good to Have (Big Plus)

• Knowledge of Next.js or server-side rendering concepts
• Experience with Redis, queues (kafka, rabbitmq), or background jobs
• Experience with Docker, cloud deployments, or Nginx
• Understanding of performance tuning and lazy loading
• Experience working in a startup or fast-paced environment

❌ Who Should Not Apply

Please do not apply if:

• You only focus on “closing tickets” without questioning why something is being built
• You lack strong JavaScript fundamentals (arrays, objects, async/await, promises, event loop)
• You mostly copy-paste code without understanding it
• You never think about edge cases, failures, retries, or resilience
• You depend heavily on others for architecture or technical direction
• You avoid responsibility and say things like:
• “Frontend issue”
• “Backend issue”
• “It was already like this”
• “QA didn’t catch it”
• You are not comfortable explaining your code, decisions, or design choices
• You expect exact step-by-step instructions for every task
• You are not interested in learning and improving as a full-stack engineer

👉 This role is not for task executors.

We want problem solvers, thinkers and owners.

Job : Full Stack Developer                                

Location:Hyderabad

Mode:Hybrid

Experience : 5 +

Skills: React Js,Node Js, Javascript , AWS

We are seeking a talented Full Stack Developer to join our dynamic team. The ideal candidate should have a strong background in Node.js, React.js, AWS, and proficient skills in JavaScript. As a Full Stack Developer, you will be responsible for designing, developing, and maintaining web applications throughout the entire software development lifecycle. Your expertise will contribute to the creation of innovative solutions that enhance user experience and drive business growth.

Responsibilities:

• Collaborate with cross-functional teams to define, design, and ship new features.
• Develop server-side logic using Node.js, ensuring high performance and responsiveness to requests from front-end components.
• Build reusable and efficient front-end components using React.js.
• Implement and maintain API integrations with third-party services.
• Optimize applications for maximum speed and scalability.
• Collaborate with other team members and stakeholders to troubleshoot, debug, and optimize application performance.
• Stay up-to-date with emerging technologies and industry trends to ensure the best practices are consistently applied.
• Implement security and data protection measures.
• Participate in code reviews and provide constructive feedback to team members.
• Deploy applications on AWS and manage cloud infrastructure.

Description:

• 5+ years of overall experience with 3 years of exp in React.js,Node.js
• Bachelor's degree in Computer Science, Engineering, or a related field.
• Proven experience as a Full Stack Developer or similar role.
• Strong proficiency in JavaScript and its modern frameworks (Node.js, React.js).
• Experience with AWS services and cloud infrastructure.
• Familiarity with front-end technologies such as HTML, CSS, and JavaScript frameworks/libraries.
• Recommended Experience: Proficiency in Node.js, Typescript, React, and MongoDB.
• Knowledge of database systems (SQL, NoSQL)
• Experience with user interface design.
• Knowledge of performance testing frameworks including Mocha and Jest.
•  Experience with browser-based debugging and performance testing 
• Excellent problem-solving and communication skills.
• Ability to work both independently and collaboratively in a team environment.

How to Apply:

If you have a passion for backend development, possess the required experience, and are excited about contributing to innovative projects, we invite you to apply.

P99soft is an equal opportunity employer, dedicated to fostering diversity and creating an inclusive workplace for all employees.

Job Purpose

We work in the latest technology, and our foundations are data structures, algorithms, solid logical reasoning, and mathematics. We are looking for very strong engineers who love coding, optimizing, and ensuring their code is the most efficient.

You will be involved with hardcore development. If you are an assembler of code or packages from different places to build something, you may not find our team to be the right fit.

You must be someone who can build anything from the ground up. Programming language should not be any barrier for you, as you should be able to pick up any programming language or underlying technology within a week.

Key Areas of Responsibility

Core development. Ready to participate in the designing, brainstorming, and development process. You must give sleepless nights to meet deadlines whenever required.

Desired Candidate Profile

Essential Skills 

• Reliable, Accountable, and Trustworthy
• Ability to understand software requirements based on a wireframe/program specification
• Familiarity with GoLang / PHP / Python / Java / C / C++ / Linux Shell and Scripting / HTML / CSS / JS / Node.js is a plus
• Effective communication skills to ensure smooth coordination of tasks with the Team Leader.
• Knowledge of MongoDB, MySQL, and PL/SQL is a plus
• Familiarity with ML, TensorFlow, and Keras is a plus
• Knowledge of web servers such as Apache, NGNIX, and the HTTP protocol is a plus.
• Knowledge of multi-process, threads, memory, and filesystem on Linux is desirable.
• Must Solve The Following

To consider you for the current opening, please make sure to understand the following question and solve it. A simple program in any programing language would do. If you cannot solve this, please do not apply.

Write a function foo(x) where foo(foo(x)) = -x (assume x to be an integer, and foo(x) has to be always real), any programming language would do. Before submitting the answers, please verify that the output of foo(foo(10)) should be -10 and foo(foo(-10)) should be 10.

• Designing and building the website front-end.
• Creating the website architecture.
• Designing and managing the website back-end including database and server integration.
• Generating WordPress themes and plugins.
• Conducting website performance tests.
• Troubleshooting content issues.
• Conducting WordPress training with the client.
• Monitoring the performance of the live website.

Role: FullStack Developer

Experience: 1+ years

Location: Madurai

Mode: Work from office

We have vast experience in delivering high-quality products with significant output on time. We are specialized in creating web and mobile applications with the latest technology. We are expert in developing a perfect solution for rental marketplace services and on-demand businesses done by our proficient team of experts with strong experience in development.

• Minimum of 6 months of real-time experience in React/Node.js/Angular
• Good understanding of structured and unstructured databases (MySQL and MongoDB)
• Knowledge of isomorphic React is an added advantage
• Experience in implementing well-known React workflows such as Redux
• Ability to learn new technologies and languages quickly
• Proficient understanding of code versioning tools, such as Git
• Experience with Javascript backend framework like Express.js
• Good time-management skills
• Experience with Restful API services
• Delivering a complete front end application
• Professional, precise communication skills
• Deep knowledge of Angular/Node.js/React practices and commonly used modules based on extensive work experience
• Good knowledge in Javascript and able to handle Array & Objects built-in methods
• A Good logical thinking and problem-solving skills
• A good team player