Jibin Varghese

Ruby on Rails Developer with 6+ years of IT experience, including 4+ years of specialized expertise in Ruby on Rails development. Proven track record in designing, developing, and maintaining scalable enterprise applications, government procurement portals (GeM), and ERP platforms. Proficient in Ruby on Rails, Angular, PostgreSQL, MySQL, Docker, Git, Redis, ActiveRecord, CI/CD, and Agile methodologies.

Experienced in L2/L3 production support, RESTful API development, role-based authorization, and database query optimization in high-volume production environments.

System Engineer — Ruby on Rails Developer at Tata Consultancy Services (2024-11 – Present)

• Directly absorbed into TCS after vendor engagement, continuing development on Government e-Marketplace (GeM), GoI's national public procurement platform.
• Develop and maintain scalable Ruby on Rails portal solutions supporting high-volume procurement transactions.
• Optimize complex ActiveRecord queries, implement database indexing strategies, and tune MySQL performance for improved scalability and reliability.
• Design, build, and maintain RESTful APIs enabling seamless integration across microservices and third-party systems.
• Manage Docker-based containerized environments, Git branching workflows, and CI/CD pipelines for streamlined, zero-downtime deployments.
• Provide L2/L3 production support, performing root cause analysis and resolution of critical application incidents within SLA timelines.
• Collaborate within Agile/Scrum teams across design, development, code review, testing, and deployment phases.

Ruby on Rails Developer at Diensten Tech Limited (Formerly JKT Consulting Ltd.) (2023-10 – 2024-11)

• Deployed as a vendor resource to TCS's Government e-Marketplace (GeM) project; later directly absorbed by TCS in Nov 2024 based on performance.
• Developed procurement portal solutions using Ruby on Rails, Angular, and MySQL supporting high-volume government transactional workflows.
• Designed and implemented RESTful APIs with role-based authentication and authorization (RBAC) enabling secure frontend-backend communication.
• Optimized ActiveRecord queries and MySQL database schemas to handle high-volume user traffic with improved response times.
• Managed post-deployment production support, triaging and resolving application issues within defined SLA timelines.
• Utilized Docker containerization and Git-based branching workflows to improve release efficiency and team collaboration.

Ruby on Rails Developer (Contract) at Chetu, Inc. (2022-12 – 2023-01)

• Developed healthcare-based web applications using Ruby on Rails, ActiveRecord, and JavaScript.
• Integrated backend API services with frontend components to deliver improved user experience.
• Delivered bug fixes, feature enhancements, and deployment support within strict project timelines.

Jr. Technical Consultant at Mindcom Consulting Services Pvt. Ltd. (2021-07 – 2022-12)

• Developed and maintained web applications using Ruby on Rails, HTML, CSS, JavaScript, and jQuery.
• Built and consumed RESTful APIs for web and mobile applications, implementing CRUD operations, RBAC, authentication, and JSON-based data exchange.
• Designed and optimized MySQL schemas and implemented ActiveRecord associations, validations, callbacks, and business logic.
• Generated PDF and Excel reports using Prawn and spreadsheet libraries; migrated legacy app to Rails 7.
• Successfully supported ERP solutions deployed across 55+ educational institutions.

Web Developer at India Campus Crusade For Christ (2019-07 – 2021-06)

• Designed and developed responsive websites using WordPress, HTML5, CSS3, and JavaScript.
• Maintained web content and collaborated with stakeholders to implement requirements effectively.

Ruby on Rails Developer Intern at Rubiyans Private Limited (2018-11 – 2019-04)

• Built foundational Ruby on Rails skills including MVC architecture, ActiveRecord, and RESTful API design.
• Assisted in backend feature implementation, database integration, and deployment under senior mentorship.

Master of Computer Applications in Computer Applications – Saintgits College of Engineering (2017 – 2019)

BSc in Computer Science – College of Applied Science (2013 – 2016)