09/09/2026 updated

**** ******** ****
100 % available

Senior Full Stack Engineer | Ruby on Rails | React | Node.js | Python | AI

indore, India
Only remote
Master of Business Administration (Information Technology)
indore, India
Only remote
Master of Business Administration (Information Technology)

Profile attachments

VARUN K Senior ROR Developer .pdf

About me

Full Stack Engineer with 8+ years of experience building scalable web apps, SaaS platforms, APIs, and AI solutions. Skilled in Ruby on Rails, React, Node.js, Python, FastAPI, TypeScript, PostgreSQL, MongoDB, AWS, LLMs, AI agents, RAG, automation, and API integrations.

AI AgentsTailwind CSSLLMOpenAIGeminiLangChainJavaScriptPython (Programming Language)Node.jsTypoScriptSQL DatabasesTypeScriptWebsite ArchitectureReact.js
Full Stack Engineer with 8+ years of experience building scalable web apps, SaaS platforms, APIs, and AI solutions. Skilled in Ruby on Rails, React, Node.js, Python, FastAPI, TypeScript, PostgreSQL, MongoDB, AWS, LLMs, AI agents, RAG, automation, and API integrations.

Experience

Professional experience10+ years
Freelancer since2012

Languages

EnglishFluent

Project history

Senior Ruby on Rails Developer

ProcureDesk
Led the architecture and development of scalable procurement solutions using Ruby on Rails and React.js, ensuring seamless enterprise integrations and optimized system performance. Designed procurement workflows, vendor management modules, approval systems, and invoice automation capabilities to support large-scale business operations. Technologies: Ruby on Rails, React.js, PostgreSQL, AWS, REST APIs, JavaScript, HTML5, CSS3.

Senior Ruby on Rails Developer

Mobility Empowered
Architected and developed scalable backend systems and frontend applications to support customer operations, supplier management, and issue resolution workflows. Implemented secure APIs, role-based access control, automated notifications, and real-time job tracking capabilities. Technologies: Ruby on Rails, React.js, PostgreSQL, AWS, REST APIs, HTML5, CSS3, Jira.

Senior Ruby on Rails Developer

Sweet Pay
Designed and implemented secure payment processing architecture with scalable backend services and API-driven financial workflows. Developed integrations for transaction management, authentication systems, and payment gateway operations while ensuring security, scalability, and performance optimization. Technologies: Ruby on Rails, React.js, PostgreSQL, Payment Gateway Integrations, AWS, REST APIs.

Senior Ruby on Rails Developer

UMAXX TV
Led backend architecture and cloud infrastructure development for scalable streaming services and subscription management systems. Designed APIs and optimized platform performance to support content delivery, user management, and seamless streaming experiences. Technologies: Ruby on Rails, React.js, AWS Cloud Services, PostgreSQL, JavaScript, HTML5, CSS3.

Senior Ruby on Rails Developer

Sura360
Played a key role in architecting and developing scalable backend systems, vendor onboarding modules, booking workflows, and geolocation-enabled service discovery features. Ensured high application scalability, secure payment integrations, and reliable cloud infrastructure management. Technologies: Ruby on Rails, React.js, Flutter, PostgreSQL, AWS, Tailwind CSS, REST APIs, Geolocation APIs.

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