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pankaj chaurasia

@pankajchaurasia

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Full-stack Ruby on Rails developer building scalable APIs and React experiences for thousands of users.

India

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What I'm looking for

I want to build and ship secure, maintainable Ruby on Rails + React products—owning APIs, performance, and CI/CD—while collaborating in Agile teams and improving scalability through testing, caching, and clean architecture.

I’m a Full Stack Ruby on Rails Developer with over 3.8+ years of experience building and deploying dynamic, scalable web applications. I enjoy owning both backend and frontend, with a strong focus on RESTful APIs, GraphQL, and seamless user experiences.

At BestPeers InfoSystems, I design and build customer-facing products using Ruby on Rails and React.js, serving thousands of users per month. I architected and migrated monolithic Rails apps to microservices (authentication, billing, notifications), improving deploy velocity and reducing outage blast radius, while strengthening reliability through CI/CD (GitHub Actions/Jenkins) and test-driven practices.

I implement robust RESTful and GraphQL APIs consumed by React frontends and mobile clients, including versioning and backward-compatible changes. I also handle asynchronous workflows with Sidekiq, optimize performance using Redis caching and query optimization, and keep delivery safe with feature flags (LaunchDarkly/custom) for gradual rollouts and A/B tests.

Previously at Throughout Technology Pvt. Ltd, I oversaw end-to-end lifecycles—planning, development, testing, and deployment—while focusing on scalability, user experience, and fixing performance bottlenecks. In my recent work across products like Aquifer, Uphance, SweetPay, and OrdwayLabs, I’ve delivered maintainable Rails/React features, integrated third-party services (including Stripe), and built strong automated test coverage to ensure dependable releases.

Experience

Work history, roles, and key accomplishments

Current

Ruby on Rails Full-stack Dev

Current

BestPeers Infosystems Pvt. Ltd

Oct 2023 - Present (2 years 8 months)

Designed and developed multiple customer-facing products using Ruby on Rails (backend) and React.js (frontend), serving thousands of users per month. Migrated monolithic Rails apps to microservices, improving deploy velocity and reducing outage blast radius while building REST/GraphQL APIs and Sidekiq background processing.

Ruby on Rails React RESTful APIs GraphQL Microservices Sidekiq Redis AWS EC2 PostgreSQL

Ruby on Rails Full-stack Dev

Technology Pvt. Ltd

May 2022 - Aug 2023 (1 year 3 months)

Built and maintained reusable Ruby and Ruby on Rails code while managing end-to-end project lifecycles (planning, development, testing, deployment). Resolved performance bottlenecks and critical bugs and implemented RSpec test coverage to improve reliability.

Ruby Ruby on Rails RSpec Performance Tuning Automated Testing REST APIs Debugging Agile Delivery Deployment

Ruby on Rails Full-stack Dev

SweetPay

Created and implemented new features while optimizing existing Rails code in coordination with clients to gather feedback and align deliverables. Led RSpec/Capybara testing and integrated a payment gateway (Tap) and real-time notification systems to improve transaction flow and user engagement.

Ruby Ruby on Rails RSpec Capybara Hotwire Heroku SOAP AJAX JavaScript Payment Gateways

Ruby on Rails Full-stack Dev

Aquifer

Maintained and troubleshot Rails web applications using Agile/Scrum while identifying and fixing bottlenecks and bugs. Implemented CSV streaming via Action Cable and integrated third-party SOAP and REST APIs to optimize application performance.

Ruby on Rails Sidekiq Redis PostgreSQL RSpec Stimulus Hotwire ActionCable Tailwind

Ruby on Rails Full-stack Dev

OrdwayLabs

Built dynamic, responsive ReactJS interfaces and designed RESTful APIs for billing and accounting functionality. Wrote and maintained unit, integration, and end-to-end test coverage with RSpec and delivered KPI reporting with scalable data models for recurring revenue businesses.

ReactJS Ruby on Rails RSpec RESTful APIs API Design Data Modeling KPIs Scalability Automated Testing Integration Testing

Ruby on Rails Full-stack Dev

Uphance

Designed order and inventory management modules integrating real-time delivery tracking, and built responsive logistics dashboards using React and reusable components. Improved backend performance with database indexing and Redis caching, and increased reliability by adding Cypress E2E and RSpec test coverage.