Mern Stack Developer

Crobstacle Ventures LLP is looking for a passionate and technically capable Backend Developer (Node.js / Express.js) to join our growing technology team.

You will contribute to the development of backend systems powering AI-driven products, SaaS applications, web platforms, and internal technology solutions.

This role is suited to developers who enjoy solving technical problems, building reliable APIs, working with databases, and understanding how applications function beyond the user interface.

We welcome candidates with relevant professional experience as well as freshers who can demonstrate strong backend development skills through practical projects.

• Key ResponsibilitiesDevelop and maintain backend applications using Node.js and Express.js.
• Design, build, and integrate REST APIs.
• Work with PostgreSQL, MongoDB, or other relevant databases.
• Implement authentication, authorization, and data validation.
• Integrate third-party APIs and external services.
• Write clean, maintainable, and reusable backend code.
• Troubleshoot bugs, API errors, and database-related issues.
• Assist in database design, queries, and performance optimisation.
• Collaborate with frontend developers to integrate application functionality.
• Support testing, deployment, and ongoing maintenance.
• Use Git and GitHub for version control and collaboration.
• Document API endpoints and important technical changes.
• Identify technical problems and proactively suggest solutions.
• Required SkillsGood understanding of JavaScript.
• Basic practical experience with Node.js and Express.js.
• Understanding of REST APIs and HTTP methods.
• Knowledge of database fundamentals.
• Familiarity with PostgreSQL or MongoDB.
• Basic understanding of authentication and authorization.
• Familiarity with Git/GitHub.
• Ability to debug code and investigate technical issues.
• Understanding of asynchronous JavaScript.
• Strong problem-solving ability.
• Willingness to learn new technologies and take ownership.
• Good to HaveTypeScript
• PostgreSQL and SQL queries
• Prisma or Sequelize
• JWT authentication
• Supabase
• AWS or cloud deployment basics
• Docker
• API testing with Postman
• Basic application security concepts
• Experience integrating AI APIs
• Familiarity with React.js or Next.js

Who Should Apply?

We are looking for candidates who have a genuine interest in backend development and can demonstrate practical technical ability.

Freshers may apply if they have completed relevant projects involving backend development, APIs, and databases.

Candidates with internship or professional development experience are also welcome.

Candidates should be able to demonstrate at least two relevant backend projects or equivalent practical experience.

We value practical skills, problem-solving, learning ability, and ownership more than certificates alone.

What We ExpectAt Crobstacle, we believe developers should understand the problems they are solving rather than simply execute instructions.

You should be comfortable asking questions, debugging issues, researching solutions, and continuously improving your technical capabilities.

You will work closely with the development team on real products and client requirements.

Work LocationFull-time, in-office position.

No work-from-home option.

1. Selection ProcessApplication screening
2. Technical assessment
3. Project/GitHub review
4. Technical interview
5. Final management discussion