persona

About

Sumit Kumar

I'm a full stack developer based in Kolkata, India, originally from Munger, Bihar. Most of my day job lives in backend systems — designing and running services that keep large-scale telecom network management software stable, fast, and observable in production.

Outside of work, I push GenAI agents through hackathons and competitions: multi-modal verification pipelines, triage agents, merchant assistants — anything that forces me to ship something real against a clock. I'm currently deepening my AI/ML foundations through a certification at IIT Patna.

I'm actively looking for backend, full stack, or GenAI engineering roles at product companies, SaaS teams, and fast-growing startups across India — remote, hybrid, or onsite.

clean architectureproduction reliabilitydata pipelinesshipping under deadline

career log

Experience

Software Engineer · NMSWorks Software

Apr 2024 — Present

Kolkata, India

  • Developed and enhanced scalable backend services within a microservices architecture for large-scale telecom network management systems.
  • Optimized PostgreSQL queries and indexing strategies, improving data retrieval performance across large datasets.
  • Resolved high-priority production issues impacting network stability, performance, and system reliability.
  • Implemented and maintained CI/CD pipelines with Jenkins, with build artifacts managed in JFrog Artifactory.
  • Deployed and monitored Java-based Apache Kafka clusters for real-time data processing; configured Apache Tomcat for production Java web services.
JavaSpring BootApache KafkaMySQLJenkinsTomcat

Project Technical Support III Programmer · ICMR — National Centre for Disease Informatics and Research

Mar 2023 — Apr 2024

India

  • Led development and maintenance of the Hospital-Based Cancer Registry (HBCR) dashboard, enabling near real-time updates for critical public health statistics.
  • Built and enhanced the DNMS application, automating nationwide data collection workflows for diabetes research.
  • Implemented the Central ODK Collector (COC) to support large-scale field data collection and validation across high-volume datasets.
  • Built web applications with React, Angular, VB.NET, PHP, and MySQL for public-health data platforms used nationally.
ReactAngularVB.NETPHPMySQL

Software Trainee · Mountblue Technologies

Jun 2022 — Jul 2022

India

  • Full-stack JavaScript trainee — foundational training across the modern JS stack.
JavaScriptFull Stack

foundation

Education

MCA

2022

Computers

Cochin University of Science and Technology (CUSAT)

Grade — 9/10

BCA

2019

Computer Applications (General)

Tilka Manjhi Bhagalpur University, Bhagalpur

Marks — 67.97%

credentials

Certifications

PythonJavaMySQLResponsive Web DesignFront End Development LibrariesJavaScript Algorithms & Data StructuresAI/ML Certification — IIT Patna (in progress)