Raguram Murugan
Guduvancherri
Summary
Backend Developer with strong experience in Node.js, TypeScript, and Express.js.
Skilled in building secure and scalable APIs using JWT authentication, and working with PostgreSQL and MSSQL using TypeORM and Sequelize. Passionate about writing high-quality code, optimizing backend performance, and working with cross-functional teams to deliver robust, scalable solutions.
Overview
6
6
years of professional experience
1
1
Certification
Work History
Backend Developer
Hubino
Chennai
09.2022 - Current
- I took part in regular code reviews to maintain clean, consistent code, and share best practices with the team.
- Built backend systems using Node.js with TypeScript, primarily using Express.js and NestJS for modular, scalable development.
- Implemented JWT-based authentication and authorization to secure APIs and manage user access across modules.
- Designed and worked with GraphQL APIs to provide flexible, efficient data access for frontend applications.
- Used TypeORM and Sequelize to manage data interactions with PostgreSQL and MSSQL databases.
- Monitored application and server performance, and made improvements, including optimizing for load balancing and response times.
- Wrote, tested, and deployed backend features aligned with business needs and project timelines.
- Created custom SQL scripts to maintain database integrity and optimize performance.
- Troubleshot and resolved backend bugs, improving overall system stability, and user experience.
- Built and maintained RESTful APIs that powered front-end apps and third-party integrations.
- Developed custom middleware for tasks such as logging, centralized error handling, and request validation.
- Worked on web services supporting both internal tools and external client applications.
- Managed time effectively to deliver high-quality work within deadlines.
- Proactively solved problems, and often went beyond the requirements to improve functionality and user satisfaction.
System Support Engineer
Alchemy Techsol Private Limited
Chennai
05.2020 - 08.2021
- Participated in after-hours on-call rotation to provide 24/7 support for critical issues.
- Configured and installed operating systems, software, and hardware components.
- Updated and resolved service requests by coordinating on-site problem resolution to address complications.
- Managed ticketing system, ensuring all support requests were addressed in accordance with SLAs.
System Support Engineer
Accord Technocare Private Limited
Chennai
04.2019 - 04.2020
- Participated in after-hours on-call rotation to provide 24/7 support for critical issues.
- Repaired malfunctioning hardware components such as CPUs, RAM modules, hard drives.
- Conducted root cause analysis for recurring problems to prevent future occurrences.
- Handled troubleshooting tasks for Local Area Networks, Wide Area Networks, and voice systems to reduce network connectivity problems.
Education
Bachelor of Technology - Electrical Engineering
PRIST University
Thanjavur06-2019
Skills
- Nodejs development
- TypeScript programming
- RESTful APIs
- JWT authentication
- Database management
- SQL optimization
- Middleware development
- Experience with API documentation
- Amazon web services
- Microservices
Certification
Software Engineer
Issued by: Hubino
January 2025
Backend Developer (Node.js)
Issued by: Hubino
December 2024
Languages
Tamil
First Language
English
Upper Intermediate (B2)
B2
Projects
Backend Development :
1. Amysys – Enow
🗓️ Mar 7, 2023 – May 19, 2023
- Developed backend using Node.js, Express.js, and Sequelize with PostgreSQL.
- Built and managed RESTful APIs for handling core business logic.
2. Bodia
🗓️ Jun 1, 2023 – Jan 24, 2024
- Worked with NestJS and GraphQL, integrating with PostgreSQL.
- Implemented modular services with clean architecture.
3. Ally Sync (via Upwork)
🗓️ Jan 25, 2024 – May 15, 2024
- Built serverless backend services using Node.js, Express.js, and Sequelize on AWS Lambda.
- Integrated PostgreSQL with scalable serverless functions.
4. Alpine Health
🗓️ May 27, 2024 – Nov 11, 2024
- Developed robust backend features using Node.js, Express.js, and Sequelize.
- Used PostgreSQL for structured data storage and queries.
5. Kimbot AI
🗓️ Nov 18, 2024 – Jan 28, 2025
- Built core backend modules using Node.js and Express.js.
- Focused on clean API architecture and performance.
6. AMLY-RAG
🗓️ Jan 29, 2025 – Mar 13, 2025
- Worked on an AI-powered RAG system using Python.
- Integrated OCR, PDF parsing, and vector DB (Weaviate) with FastAPI.
7. CertaintiAI – EA (Current)
🗓️ Mar 14, 2025 – Present
- Building scalable services using Node.js, TypeScript, and TypeORM with PostgreSQL.
- Working on enterprise-grade backend solutions with clean code practices.
Timeline
Backend Developer
Hubino
09.2022 - Current
System Support Engineer
Alchemy Techsol Private Limited
05.2020 - 08.2021
System Support Engineer
Accord Technocare Private Limited
04.2019 - 04.2020
Bachelor of Technology - Electrical Engineering
PRIST University
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