RAJ KUMAR User
@raja611
Software engineer re-architecting high-throughput Go services and building low-latency systems with Go, React, and AWS.
IndiaWhat I'm looking for
At Kaleyra (acq. by Tata Communications), I re-architected a high-throughput cron service for over 100M transactions/day, migrating to distributed consumer-based processing and cutting container memory usage by 67% while eliminating recurring crashes.
I modernized report generation by migrating legacy PHP services to Go and building batch, streaming, and parallel processing pipelines—boosting report processing performance by 8–10x across millions of records daily. I also implemented a resilient retry framework that improved fault tolerance and reduced customer escalations by 70%.
Earlier, I founded ManyReach.io, where I architected and built a full-stack SaaS platform with Go, React, and AWS, designing end-to-end features like authentication, automation workflows, billing, analytics dashboards, and third-party API integrations. I automated infrastructure with Terraform and set up fully automated GitHub Actions CI/CD to cut deployment time by 70%.
Experience
Work history, roles, and key accomplishments
Software Engineer
Kaleyra (Acq. by Tata Communications)
Jun 2024 - Present (2 years 2 months)
Re-architected a high-throughput cron service processing over 100M transactions/day, reducing container memory usage by 67%. Modernized report generation by migrating legacy PHP services to Go, improving performance by 8-10x.
Founding Full Stack Engineer
ManyReach.io
May 2026 - Jul 2026 (2 months)
Architected and built a full-stack SaaS platform using Go, React, and AWS, delivering <100 ms API latency. Designed end-to-end features including authentication, automation workflows, billing, and analytics dashboards.
Education
Degrees, certifications, and relevant coursework
National Institute of Technology Puducherry
Bachelor of Technology, Computer Science and Engineering
2020 - 2024
Grade: 8.22 CGPA
Bachelor of Technology in Computer Science and Engineering with a CGPA of 8.22.
Tech stack
Software and tools used professionally
Availability
Location
IndiaAuthorized to work in
Job categories
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