DEVELOPER
Pavan Kalyan
Available for opportunities
Hello, World! 👋

I'm Pavan Kalyan

~
Software Engineer Full Stack & GenAI Developer React & React Native Developer Backend & LLM Systems Developer

Software Engineer with 1.6+ years of experience building scalable web, mobile, and GenAI applications across HRTech, EVTech, AI Policy Chatbots, and Enterprise Resource Management. Passionate about RAG pipelines, LLMs, scalable software architecture, and delivering high-quality user experiences.

Let's Talk
Resume
250+ Problems Solved
9+ Projects Built
5+ Certifications
AI-Assisted Engineering
Anthropic Certified

Using AI-assisted development workflows to accelerate delivery, debug complex systems, review code, and navigate large codebases while maintaining full ownership of technical decisions.

Claude 101
Anthropic · Verify
Claude Code 101
Anthropic · Verify
Claude Code in Action
Anthropic · Verify
Stack
Claude Code Antigravity Codex Cursor GitHub Copilot
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02ABOUT ME

Who I Am.

I'm a Software Engineer (SDE-I) at Coffeebeans Consulting in Bengaluru, with 1.6+ years of experience building scalable web, mobile, and GenAI-powered applications across HRTech, EVTech, RAG Policy Systems, Enterprise Onboarding, and Predictive Maintenance domains.

I work across the full stack using React, React Native, Node.js, Express, Golang, FastAPI, and PostgreSQL. I build production systems featuring Retrieval-Augmented Generation (RAG), LLM APIs (OpenAI / Gemini), pgvector, AWS S3, Google Drive, Google Calendar/Meet, SendGrid, and OAuth integrations.

I've solved 250+ coding problems across platforms and hold certifications in AI-assisted development, Python, JavaScript, and web development. I'm passionate about building scalable software, solving complex engineering problems, and delivering high-quality user experiences.

I have a solid foundation in core programming languages like C, C++, Java, Python, and Go, which helps me quickly understand new technologies and adapt to different development environments.

Bengaluru, India
Coffeebeans Consulting
B.Tech CSE
1.6+ Years Experience
What I Work With
Languages
TypeScriptJavaScriptPython GoSQLCC++Java
GenAI & LLMs
RAG ArchitectureOpenAI APIGemini API Vector Search (pgvector)Safety Gates
Frontend
React.jsReact NativeExpo ViteNext.jsHTML / CSS Tailwind CSSShadcn UIZustand
Backend & ORMs
Node.jsExpress.js FastAPIDjango REST Golang (Gin)Drizzle ORM SQLAlchemyPrismaGORM
Databases
PostgreSQLpgvector
Tools & AI Asssisted Dev
Claude CodeAntigravity CursorDockerDocker Compose GitGitHubGitHub Actions
Integrations & Storage
AWS S3Google Drive API Google OAuthGoogle Calendar API Google Meet APISendGrid Slack APIGoogle Sheets API
03EXPERIENCE & EDUCATION

Career Journey.

Software Development Engineer (SDE-I)
Coffeebeans Consulting
May 2025 – Present
Bengaluru, Karnataka
Current

Enterprise Onboarding Platform (Coffeebeans-X)

React 18, Vite, Node.js (Express), PostgreSQL (pgvector), Drizzle ORM, OpenAI, Gemini LLM, AWS S3, Google Drive API, Tailwind CSS, Shadcn UI
  • Built full-stack employee onboarding features and an AI Policy Assistant (RAG) using React 18, Express, PostgreSQL (pgvector), and Drizzle ORM to allow real-time natural language querying of company policy PDFs.
  • Engineered a vector retrieval engine featuring dynamic space normalization, HR synonym query expansion, 2D PDF table chunking, and grounding safety gates to prevent out-of-scope LLM hallucinations.
  • Integrated AWS S3 and Google Drive APIs for secure document uploading, storage, and management across employee onboarding and policy administration workflows.
  • Collaborated with DevOps teams on pipeline automation, environment configuration, and secret management using Docker, Kubernetes Helm Charts, and ArgoCD.

Applicant Tracking System (ATS)

React, Vite, FastAPI, PostgreSQL, SendGrid, Google Calendar API, Docker
  • Developed end-to-end interview management workflows including scheduling, rescheduling, cancellation, candidate communication, and feedback reminders.
  • Integrated Google Calendar and Google Meet APIs for automated event creation, attendee management, and meeting link generation.
  • Implemented SendGrid-based email workflows for interview notifications, candidate communication, feedback reminders, comment mentions, and vendor activation flows.
  • Built interview-related frontend modules, notification systems, candidate workflows, and backend API integrations.
  • Developed backend business logic and database workflows using FastAPI and PostgreSQL.
  • Resolved production issues involving calendar synchronization, email delivery, notifications, permissions, API workflows, and Docker environments.

Smart EV Charging Platform

React Native (Expo), React, Vite, Tailwind CSS, Shadcn UI, Node.js, Express, Go (Gin), PostgreSQL, GORM, Swagger
  • Owned development of mobile application workflows for fleet drivers and EV consumers using React Native and Expo.
  • Built driver-facing features including AI-based charging recommendations, vehicle dashboards, charging station booking, SOS support, and live charging session tracking.
  • Developed EV consumer features including station discovery, live pricing, credits management, V2G sessions, sustainability tracking, and family account management.
  • Contributed to charging station management dashboards using React, Vite, Tailwind CSS, and Shadcn UI.
  • Supported backend services by troubleshooting API and PostgreSQL-related issues across Go-based services.

Predictive Maintenance Platform

OutSystems, JavaScript, FastAPI
  • Built UI screens using OutSystems and integrated REST APIs for maintenance, work-order, contract, fluid-monitoring, and invoice management modules.
  • Implemented routing, state management, custom CSS, and JavaScript enhancements where platform limitations existed.
  • Worked with camera access, file uploads, and offline capability.
  • Contributed to FastAPI backend feature updates and bug fixes.

Slack-Based Lunch Management Application

Node.js, Slack API, Google Sheets API
  • Resolved production issues related to Slack message workflows, lunch-marking lifecycle management, and UI consistency.
  • Implemented automated reminder expiration and lunch-window closure behavior.
  • Fixed synchronization issues between Slack interactions and Google Sheets updates.
  • Improved reliability of Slack event handling, button interactions, message updates, and application stability.
React.jsReact NativeNode.js ExpressGenAI & RAGpgvector FastAPIGolangPostgreSQL AWS S3Google Drive APIDocker SendGridGoogle Calendar APISlack API
Software Development Engineer (Intern)
Coffeebeans Consulting
Feb 2025 – May 2025
Bengaluru, Karnataka
Internship

Resource Management Platform

React.js, Vite, Zustand, Nx Monorepo, Django REST Framework, PostgreSQL, Vitest
  • Developed and enhanced frontend features for an internal resource management platform using React.js, Vite, and Zustand within an Nx Monorepo, supporting staffing, project allocation, and asset management workflows.
  • Fixed frontend issues and improved user experiences across role-based workflows for Super Admin, Admin, Viewer, and Requester users by implementing UI enhancements and access-related changes.
  • Contributed to backend features and bug fixes using Django REST Framework and PostgreSQL; wrote frontend tests with Vitest.
React.jsViteZustandDjango RESTNx MonorepoVitestPostgreSQL
Education
2021 – 2024
B.Tech — Computer Science & Engineering
Sree Vidyanikethan Engineering College
Tirupati, Andhra Pradesh
82.27%
2018 – 2021
Diploma in Computer Engineering
Sri Venkateswara Government Polytechnic
Tirupati, Andhra Pradesh
76.86%
Certifications
Claude 101
Anthropic · May 2026
Claude Code 101
Anthropic · May 2026
Claude Code in Action
Anthropic · May 2026
Python For Beginners
Udemy · Completed Nov 2022
HTML, CSS, JavaScript
Udemy · Completed Jul 2024
Python 101 for Data Science
Cognitive Class · Completed Oct 2022
04PROJECTS

Featured Work.

Showcasing my best work and technical capabilities

01
⭐ Featured

Google OAuth Authentication System

Built a secure authentication platform using Google OAuth 2.0, JWT authentication, and HTTP-only cookies. Implemented public profiles, profile management, privacy controls, account deletion, and activity tracking features. Developed REST APIs using Gin and managed schema migrations using golang-migrate. Containerized frontend and backend services using Docker, Docker Compose, and Nginx.

ReactTypeScriptGo (Gin)PostgreSQLDockerNginx
02
⭐ Featured

Nestify — Multi-Tenant Apartment Management SaaS

Built a full-stack apartment management platform supporting Admin, Resident, Security, and Treasurer roles. Implemented maintenance billing, complaints, visitor management, facility booking, notices, polls, and resident management modules. Designed a multi-tenant architecture with complete data isolation across societies. Developed REST APIs, relational database models, dashboards, analytics, and role-based access controls. Containerized using Docker and Docker Compose.

ReactTypeScriptFastAPIPostgreSQLSQLAlchemyDocker
03
⭐ Featured

The Atelier — Mobile Learning Platform

Built a production-ready LMS mobile application with authentication, course discovery, bookmarking, enrollment, and profile management. Implemented an offline-first architecture using stale-while-revalidate (SWR) caching strategy. Designed a secure two-tier persistence model using SecureStore and AsyncStorage. Optimized performance using LegendList virtualization, React memoization, and debounced search. Implemented CI/CD pipelines using Jest and GitHub Actions.

React NativeExpoTypeScriptSecureStoreGitHub Actions
04

Amazon Web Scraper

Python-based web scraping tool to gather product information from Amazon including title, price, rating, reviews, and availability for analysis.

PythonBeautifulSoupWeb Scraping
05

Image Search App

Dynamic web application for searching and displaying high-resolution images using Unsplash API with responsive design and direct download options.

JavaScriptUnsplash APIHTML/CSS
06

Social Media Data Retrieval

Python script using Instaloader to fetch public data from Instagram including profile info, posts, and follower counts for data analysis and insights.

PythonInstaloaderData Analysis
07

Job Application Portal

Simple job application frontend with responsive user interface providing seamless experience for job seekers across all devices.

HTMLCSSResponsive Design
08

Content Management Tool

Simple content management system developed during internship featuring static site generation and easy content updates.

HTMLCSSJavaScript
09

Todo Application

Interactive todo list application with add, edit, and delete functionality and local storage persistence for managing daily tasks efficiently.

HTMLCSSJavaScript
05ACHIEVEMENTS

Milestones.

Recognition and accomplishments throughout my journey

0+
Coding Problems Solved
Across HackerRank, LeetCode, and CodeChef platforms
Merit
Letter of Merit — Cisco
Signed by Cisco CEO for scoring over 76% in CCNA final exam at Cisco Networking Academy
0+
Professional Certifications
In Python, Web Development, and Data Science
06CONTACT

Let's Work
Together.

Have a project or opportunity? Feel free to reach out!

Email epavan162@gmail.com
Phone +91 9490131185
Location Bengaluru, Karnataka, India

Qucik Connect

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