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Full-Stack Developer | React • Node.js • PostgreSQL • Redis • MongoDB • Kafka Passionate full-stack developer with hands-on experience building scalable web applications. Proficient in React for dynamic frontends and Node.js/Express for robust backend APIs. Skilled in database design with PostgreSQL and Knex, including complex migrations and relational data modeling. Quick to adapt to new technologies and deployment platforms, with a problem-solving mindset and attention to detail. Tech Stack: React, Node.js, Express/Bun, PostgreSQL, ORM, REST APIs, Git, Railway, Cloudflare Workers, Vercel, AWS…Full-Stack Developer | React • Node.js • PostgreSQL • Redis • MongoDB • Kafka Passionate full-stack developer with hands-on experience building scalable web applications. Proficient in React for dynamic frontends and Node.js/Express for robust backend APIs. Skilled in database design with PostgreSQL and Knex, including complex migrations and relational data modeling. Quick to adapt to new technologies and deployment platforms, with a problem-solving mindset and attention to detail. Tech Stack: React, Node.js, Express/Bun, PostgreSQL, ORM, REST APIs, Git, Railway, Cloudflare Workers, Vercel, AWS

Gautam Kumar

Back-End Developer, Front-End Developer, DevOps Developer, +3

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Full-Stack Developer | React • Node.js • PostgreSQL • Redis • MongoDB • Kafka Passionate full-stack developer with hands-on experience building scalable web applications. Proficient in React for dynamic frontends and Node.js/Express for robust backend APIs. Skilled in database design with PostgreSQL and Knex, including complex migrations and relational data modeling. Quick to adapt to new technologies and deployment platforms, with a problem-solving mindset and attention to detail. Tech Stack: React, Node.js, Express/Bun, PostgreSQL, ORM, REST APIs, Git, Railway, Cloudflare Workers, Vercel, AWS…Full-Stack Developer | React • Node.js • PostgreSQL • Redis • MongoDB • Kafka Passionate full-stack developer with hands-on experience building scalable web applications. Proficient in React for dynamic frontends and Node.js/Express for robust backend APIs. Skilled in database design with PostgreSQL and Knex, including complex migrations and relational data modeling. Quick to adapt to new technologies and deployment platforms, with a problem-solving mindset and attention to detail. Tech Stack: React, Node.js, Express/Bun, PostgreSQL, ORM, REST APIs, Git, Railway, Cloudflare Workers, Vercel, AWS

Available to hire

Full-Stack Developer | React • Node.js • PostgreSQL • Redis • MongoDB • Kafka
Passionate full-stack developer with hands-on experience building scalable web applications. Proficient in React for dynamic frontends and Node.js/Express for robust backend APIs. Skilled in database design with PostgreSQL and Knex, including complex migrations and relational data modeling.
Quick to adapt to new technologies and deployment platforms, with a problem-solving mindset and attention to detail.
Tech Stack: React, Node.js, Express/Bun, PostgreSQL, ORM, REST APIs, Git, Railway, Cloudflare Workers, Vercel, AWS

Skills

Experience Level

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Team Lead - Software Engineer at VMA Labs Pvt Ltd

November 1, 2024 - November 18, 2025

Designed and implemented a mapping engine to align Vsync system data with SAP system structures for seamless transaction flow. Ensured data consistency and adaptability across systems by handling schema differences and field-level mappings. Improved interoperability between Vsync and SAP by standardizing transaction formats for POs, invoices, and vendor records.

Team Lead - Software Engineer at VMA Labs Pvt Ltd

February 1, 2024 - November 18, 2025

Designed and led development of a multi-tenant P2P platform (Vendor Onboarding, PO Sync, GRN Tracking, Invoice Matching, Payments) abstracting ERP differences behind a common API layer. Built pluggable ERP adapters (SAP IDoc, Dynamics OData, NetSuite REST) reducing integration time from 6 weeks to 3 days. Implemented event-driven workflows with Kafka, scaling to 8K+ events/sec; Optimized performance with PostgreSQL indexing for 5M+ records and Redis caching; Strengthened reliability with rate limiting, circuit breakers (Opossum.js), retry + backpressure (BullMQ). Security: JWT tenant propagation, AWS KMS encryption, immutable audit logs. Resolved bottlenecks: optimized invoice matching with composite indexes & batch processing achieving 1.2K invoices/min with zero data loss.

Software Engineer at VMA Labs Pvt Ltd

December 1, 2023 - November 18, 2025

Phase1 - Integrated Saudi E-Invoice API with ZATCA. Phase2 - In-Progress QR-Code implementation. Developed a robust microservice and Restful Web API using modern frameworks.

Associate Software Engineer at VMA Labs Pvt Ltd

February 1, 2023 - November 18, 2025

Developed and maintained CRUD REST APIs with dual-database integration; implemented vendor requisition handling, quotation comparison, and package tracking features. Integrated JWT authentication with RBAC. Enhanced communications by integrating Outlook, Gmail, and SMS services. Worked with Jenkins CI/CD pipelines and deployments on AWS.