VISHWAJEETKUMAR
Software Engineer | Backend & Distributed Systems
Backend-focused Software Engineer with hands-on experience building scalable, production-grade systems. Strong foundations in distributed systems, backend architecture, databases, caching, and system design. Experienced in owning services end-to-end — from design and development to deployment, optimization, and production debugging. Actively seeking Backend / Software Engineer roles in product-driven teams.
About Me
Software Engineer | Backend & Distributed Systems
Backend-focused Software Engineer with hands-on experience building scalable, production-grade systems. Strong foundations in distributed systems, backend architecture, databases, caching, and system design. Experienced in owning services end-to-end — from design and development to deployment, optimization, and production debugging. Proven ability to work on real-world systems with measurable impact.
Technical Expertise
Specializing in building scalable backend services and distributed systems with expertise in microservices architecture, real-time communication, caching strategies, and cloud deployment. Proven track record of optimizing database queries and API performance, implementing secure authentication systems, and debugging production incidents. Active contributor to open-source projects including LangChain.
Core Technologies:
Analytical Thinking
Clean Code Practices
Problem Solving
Agile Collaboration
AI Innovation
Creative Solutions
Technical Skills
Expertise in cutting-edge technologies for building intelligent, scalable applications
Languages
Backend Engineering
Frontend
Databases & Caching
Distributed Systems
Cloud & DevOps
Security & Auth
Computer Science
AI & ML
Data Structures & Algorithms
400+ Problems Solved on LeetCode
Work Experience
Software Developer Intern
StuFit Approach Pvt. Ltd., Lucknow
Designed and shipped scalable backend services using NestJS and PostgreSQL, supporting 2,000+ active users
Owned backend modules end-to-end including API design, implementation, testing, deployment, and production support
Optimized database queries and execution paths, achieving ~30% reduction in API latency
Implemented secure authentication and role-based access control (JWT + RBAC)
Debugged and resolved production incidents, improving system reliability and user experience
Collaborated with senior engineers through code reviews, Agile sprints, and structured feedback
Technologies Used:
Education
B.Tech in Computer Science & Engineering
Specialization in Artificial Intelligence
University of Lucknow
Current Status
Specialization
Duration
Senior Secondary (XII)
Physics, Chemistry, Mathematics, English
Manas Convent School, CBSE
Secondary (X)
Mathematics, Science, Social Studies, English, Hindi
Manas Convent School, CBSE
Featured Projects
Building intelligent, scalable solutions with cutting-edge AI technology
Real-Time Multiplayer Backend System
Distributed Backend System
Built a low-latency, distributed backend to support concurrent users in real time. Designed Redis-based in-memory state management to handle concurrency and prevent race conditions. Implemented room-scoped WebSocket communication for efficient real-time synchronization. Deployed stateless services to enable horizontal scaling and fault tolerance.
Tech Stack:
Distributed URL Shortening Service
Scalable URL Shortening Service
Designed a high-availability backend service optimized for read-heavy workloads. Implemented Redis caching, rate limiting, and indexed database queries to ensure low-latency redirects. Evaluated CAP trade-offs and system behavior under failure scenarios.
Tech Stack:
AI-Powered Code Review & PR Analysis System
Intelligent Code Quality Assessment
Built an AI system to analyze pull requests for code quality, complexity, and potential risks. Implemented RAG-based pipelines using vector embeddings for contextual and actionable insights. Designed modular APIs to support scalable analysis across repositories.
Tech Stack:
Agri-Advisor AI
AI-Based Crop Recommendation & Advisory Platform
Built a responsive, farmer-facing platform combining an AI chatbot and dashboard to deliver crop-, soil-, and weather-based recommendations. Integrated real-time data (weather, soil) and image-based disease detection to provide step-by-step remedial guidance and crop suggestions. Designed for scalability and accessibility with planned multilingual support and offline-first/SMS–IVR fallbacks to reach rural users.
Tech Stack:
MindWare
Mental Health Assessment Web Application
Designed and developed with secure authentication and progress tracking. Built analytics dashboards using Chart.js to visualize user insights, improving accuracy by 40%. Integrated an AI chatbot via OpenRouter API for personalized support, demonstrating innovation in enterprise AI-driven wellness solutions.
Tech Stack:
TrackWell
Fitness Tracker Web Application
Developed a responsive fitness tracking platform with user authentication, goal tracking, and real-time analytics using Chart.js. Integrated Gemini API to build an AI-powered chatbot for personalized fitness guidance. Ensured secure backend with JWT, optimized MongoDB, and a seamless mobile experience.
Tech Stack:
Resume Analyzer
AI Career Platform
Developed an AI-driven resume ranking and career recommendation system with 90%+ accuracy. Integrated LLM-based scoring and vector embeddings for contextual analysis. Designed modular API architecture achieving sub-2s response time.
Tech Stack:
Open Source Contributions
Contributing to the open-source community and building production-grade features
Contributed a core feature to LangChain by enhancing init_chat_model, a central API used for initializing chat models across providers. The contribution improved robustness, developer experience, and production readiness of the framework.
Key Contributions:
- Improved input validation and model inference logic in init_chat_model
- Added comprehensive unit tests to ensure correctness and prevent regressions
- Fixed linting issues and resolved CI pipeline failures
- Collaborated with maintainers through multiple review cycles to refine the implementation
- Gained hands-on experience working with a large, production-grade open-source codebase
Tech Stack:
Enhanced the App Router internationalization documentation with practical improvements for better developer experience. Added installation instructions, best practices for SEO optimization, locale persistence patterns, and TypeScript examples. PR has been approved and is awaiting merge from maintainers with write access.
Key Contributions:
- Added installation commands and dependency setup for internationalization packages
- Created comprehensive Best Practices section covering SEO optimization with hreflang tags and locale persistence using cookies
- Improved middleware examples and restructured proxy patterns for better clarity
- Collaborated with Next.js maintainers through multiple review cycles to align with documentation standards
- PR approved after addressing feedback on Metadata API patterns, type definitions, and redirect logic
Tech Stack:
Certifications & Achievements
Professional Certifications
AWS Solutions Architecture Job Simulation
Forage
August 16th, 2025
Designed a simple, scalable, hosting architecture
Deloitte Technology Job Simulation
Forage
August 16th, 2025
Coding Development
Goldman Sachs Operations Job Simulation
Forage
August 16th, 2025
Foundations of operations, Facilitating ultra-high net worth transactions
Prompt Engineering
OpenAI
Full-Stack Development
MERN Stack
Recognition & Community
GitHub Pro Developer
Advanced developer status on GitHub
Google Cloud Innovator
Google Cloud Platform recognition
Tech Equity Collective Member
Google Developers Community
Get In Touch
Let's discuss how I can contribute to your team and build amazing solutions together
Contact Information
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