Vishwajeet Kumar

Backend Engineer

Varanasi, Uttar Pradesh, India0 mo experience
AI EnabledAI ML Practitioner

Key Highlights

  • Built scalable backend services for production applications.
  • Contributed to LangChain with enhanced model initialization.
  • Optimized API performance, improving latency by ~30%.
Stackforce AI infers this person is a Backend-focused Software Engineer with experience in SaaS and distributed systems.

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Skills

Core Skills

Backend EngineeringRest ApisFull-stack Development

Other Skills

Distributed BackendNestJSPostgreSQLNext.jsTypeScriptJWTRBACCI/CDAgile MethodologiesDistributed SystemsService ReliabilityCachingRedisWebSocketGit

About

Backend-focused Software Engineer with hands-on experience working on production systems and building scalable backend services. I have worked across backend, frontend, and database layers, with a primary interest in backend engineering, distributed systems, and service reliability. During my internship, I contributed to a production application serving ~2,000 users by building REST APIs using NestJS and PostgreSQL, integrating frontend features using Next.js and TypeScript, and improving API performance through query optimization. I have experience with authentication and authorization (JWT, RBAC), CI/CD pipelines, and debugging production issues. I enjoy working close to real systems—understanding how services scale, how failures happen, and how to build reliable and secure software. I am actively seeking Backend / Software Engineer roles in product-driven teams where I can continue learning and contributing to cloud-scale systems. Contributed to LangChain, enhancing core model initialization with better validation, inference logic, and test coverage. Interested in distributed systems, backend architecture, and production-grade open source.

Experience

0 mo
Total Experience
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Average Tenure
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Current Experience

Purplemerit

Back End Developer Intern

Mar 2026Present · 2 mos · Bengaluru, Karnataka, India · Remote

Backend EngineeringREST APIsDistributed BackendNestJSPostgreSQLNext.js+4

Stufit

Software Development Intern

Jul 2025Sep 2025 · 2 mos · Lucknow, Uttar Pradesh, India

  • Worked on a production application serving ~2,000 active users.
  • Developed backend REST APIs using NestJS and PostgreSQL.
  • Integrated frontend features using Next.js and TypeScript.
  • Designed and optimized database schemas and queries, improving API latency by ~30%.
  • Implemented JWT-based authentication and role-based access control.
  • Assisted in monitoring, debugging, and resolving production issues.
  • Collaborated with senior engineers through code reviews and Agile practices.
Full-Stack DevelopmentAgile MethodologiesNestJSPostgreSQLNext.jsTypeScript+3

Centre for development of advanced computing (c-dac)

Cyber Security Intern

May 2025Jun 2025 · 1 mo · Remote

Education

University of Lucknow

Bachelor's of technology — Computer science engineering and Artificial intelligence

Nov 2022Nov 2026

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