Lead/ Senior MERN Stack & Python Developer

Lead/ Senior MERN Stack & Python Developer

Company: Pharmnova Medical Research
Experience: 5+ Years
Employment Type: Full-time
Location: Perungalathur, Chennai

About Pharmnova

Pharmnova Medical Research develops technology-driven solutions for the pharmaceutical and life sciences industry. We are building AI-driven software tools to streamline complex workflows, improve operational efficiency and support intelligent data processing.

We are seeking an experienced Senior MERN Stack & Python Developer with strong hands-on programming skills and proven end-to-end software product development experience. The successful candidate will contribute to application development, software architecture, technical documentation, testing, AI integration and deployment.

Key Responsibilities1. Software Product Development

• Develop, enhance and maintain AI-driven applications using MongoDB, Express.js, React.js, Node.js and Python.
• Write clean, secure, maintainable and scalable production-quality code.
• Design and integrate REST APIs, backend services, databases and application components.
• Troubleshoot complex issues, resolve bugs and optimize application performance.
• Take ownership of features from requirements analysis through development, testing and deployment.
• Ensure that deliverables meet functional requirements, performance expectations and quality standards.

2. Software Architecture & Technical Documentation

• Prepare and maintain software architecture and technical design documentation.
• Translate business and functional requirements into technical specifications.
• Create and maintain Business Requirements Specifications (BRS), Software Requirements Specifications (SRS), technical design documents, API specifications and database design documents, as applicable.
• Prepare architecture diagrams, component diagrams, data-flow diagrams and integration documentation.
• Ensure documentation accurately reflects the implemented application and is maintained throughout product development.

3. Software Testing & Quality Assurance

• Prepare test plans, test scenarios, test cases and test reports.
• Perform unit, integration, API, functional and regression testing.
• Investigate defects, conduct root-cause analysis and implement corrective solutions.
• Support system testing, release readiness and production issue resolution.
• Collaborate with QA and product teams to ensure application stability, reliability and quality.

4. AI & Python Integration

• Develop and integrate Python-based services with MERN applications.
• Integrate AI and Large Language Model (LLM) APIs into application workflows.
• Implement and validate prompts, API integrations, data-processing pipelines and AI outputs.
• Support improvements in AI response time, output consistency and processing efficiency.
• Contribute to reliable processing of large datasets and AI-driven information extraction workflows.

5. Cloud Deployment & Application Maintenance

• Support application configuration, deployment, monitoring and troubleshooting.
• Work with development, testing and production environments.
• Collaborate on release management, application security and deployment readiness.
• Follow version control, code review and secure software development practices.

6. Collaboration & Accountability

• Work closely with product owners, technical architects, QA teams and other developers.
• Participate in technical reviews, sprint planning and release discussions.
• Identify technical risks and recommend practical solutions supported by evidence and testing.
• Demonstrate individual technical competence, independent problem-solving and ownership of deliverables.

Mandatory Qualifications & Skills

• Minimum 5+ years of hands-on software development experience.
• Strong practical experience with the complete MERN stack: MongoDB, Express.js, React.js and Node.js.
• Strong Python programming skills and experience developing backend services or integrating Python applications.
• Mandatory end-to-end software product development experience, preferably involving features delivered through production deployment.
• Experience designing and integrating REST APIs, databases and application components.
• Practical experience preparing software architecture documents, technical design specifications and development documentation.
• Experience preparing test plans, test cases and test reports, and performing software testing.
• Strong debugging, analytical thinking, problem-solving and troubleshooting skills.
• Ability to independently understand, explain, validate and maintain code developed personally or with AI-assisted development tools.
• Good written and verbal communication skills.

Preferred Qualifications & Additional Advantages

The following skills will be considered an advantage:

• Experience developing AI-driven applications and integrating LLMs.
• Familiarity with Python AI/ML frameworks, LLM APIs, Retrieval-Augmented Generation (RAG), embeddings or vector databases.
• Practical cloud deployment experience with Microsoft Azure and/or AWS, including application hosting, configuration, database deployment, monitoring and troubleshooting.
• Experience deploying MERN applications and Python-based services in cloud environments.
• Familiarity with CI/CD pipelines, Git, Docker and automated deployment practices.
• Experience with secure software development, access control and application performance monitoring.
• Experience in healthcare IT, pharmaceutical technology, life sciences or regulated software development.
• Knowledge of software development lifecycle documentation, requirements traceability, risk management and software validation.
• Relevant certifications in AI, machine learning, cloud computing or software architecture.

Note: AI experience, AI certifications and AWS/Azure deployment experience are advantageous but not mandatory. Strong MERN, Python, documentation and product development experience are essential.

Candidate Profile

We are looking for a hands-on technology professional who can translate requirements into working software, independently troubleshoot technical issues, produce reliable deliverables and maintain appropriate technical documentation.

The ideal candidate will demonstrate:

• Strong practical programming and software engineering skills.
• The ability to understand application architecture and make informed technical decisions.
• A quality-driven approach to development, testing and documentation.
• Ownership of assigned tasks and commitment to delivery timelines.
• Constructive, evidence-based technical problem-solving.
• The ability to work effectively in an AI-driven product development environment.

How to Apply

Interested candidates should submit an updated CV highlighting:

• Total years of experience in MERN Stack and Python development.
• Software products developed and individual contributions.
• Experience in end-to-end product development and deployment.
• Experience preparing architecture documents, technical specifications and test plans.
• AI/LLM integration experience, if any.
• AWS/Azure deployment experience, if any.
• Relevant technical certifications, if applicable.

Screening criteria: Candidates must demonstrate hands-on MERN Stack, Python and end-to-end software product development experience. Practical technical competence and ownership of deliverables are essential for this role.

Pay: ₹600,000.00 - ₹1,000,000.00 per year

Experience:

• hands-on software development: 5 years (Required)

Location:

• Perungalathur, Chennai, Tamil Nadu (Required)

Work Location: In person