Arvind Kushwah

Senior Full Stack Software Engineer with 12+ years of experience building scalable SaaS platforms, enterprise applications, AI-powered solutions, and cloud-native systems. Specialized in Ruby on Rails, React, Next.js, React Native, PostgreSQL, AWS, Docker, REST APIs, and OpenAI integrations. Experienced in leading the complete software development lifecycle from solution architecture and implementation to deployment, performance optimization, and long-term product evolution.

Full Stack Developer at Bittern Technologies (2016-01 – Present)

• Led end-to-end design and development of SaaS, CRM, ERP, property management and AI-powered products.
• Designed scalable multi-tenant Ruby on Rails architectures and REST APIs.
• Built modern React and Next.js frontends with responsive UI/UX.
• Integrated OpenAI, Stripe, Plaid, Twilio, SendGrid, Google Maps and other third-party services.
• Managed AWS infrastructure, Docker deployments, CI/CD pipelines and production environments.
• Worked directly with international clients, translating business requirements into production-ready software.
• Mentored developers and drove code quality, testing and performance optimization.

Senior Ruby on Rails Developer at Flexsin Technologies Pvt. Ltd. (2015-03 – 2016-02)

• Designed and developed scalable Ruby on Rails applications.
• Optimized SQL queries and application performance.
• Collaborated with frontend teams and third-party integrations.

Ruby on Rails Developer at Yuvasoft Solutions Pvt. Ltd. (2013-09 – 2015-02)

• Developed Ruby on Rails applications using MySQL/PostgreSQL.
• Integrated payment gateways and external APIs.
• Worked in Agile environment with RSpec testing.

Master of Computer Applications in MCA – Samrat Ashok Technological Institute (SATI)

Bachelor of Computer Applications in BCA – Makhanlal Chaturvedi University