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Pankaj Kumar
From India 07:45 AM (GMT+05:30)
$25/hr or $50,000/yr

Active 1 day ago


Member since Apr 2026

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Full stack developer

Full-Stack Engineer
Available for hire
Years of experience
3+ years
Experience level
Mid-level
Available for
Full-time
Available from
16 May 2026

Full Stack Developer with 3+ years of experience building scalable SaaS and enterprise web applications with Ruby on Rails. Specialized in designing high-performance backend systems, RESTful and GraphQL APIs, asynchronous processing using Sidekiq and Redis, and optimizing data pipelines. Reduced data processing time from 24 hours to 6 minutes and improved system throughput by 30% through background job optimization and database-level improvements. Delivered production-grade solutions for international clients including Volkswagen Group UK and KIA Motors Ireland.

Languages

Employment History

Senior software developer at Gems essence info tech pvt ltd Current 2023 - Now
Developed and maintained scalable web applications using Ruby on Rails and JavaScript. Designed and optimized backend APIs and database queries for performance and reliability. Implemented business logic and ensured data integrity across systems. Collaborated with cross-functional teams to gather requirements and deliver features. Improved system efficiency by optimizing processes (reduced execution time from 24 hours to 6–8 minutes). Debugged and resolved production issues, ensuring high availability and stability. Wrote clean, maintainable, and well-documented code following best practices.

Education

Bachelor of electronics and communication engineering at RGPV 2019 - 2023