Available to hire
I’m Rubel Debnath, a seasoned Full Stack Developer and Technical Lead with over 19 years of experience delivering scalable, high-quality software across diverse industries. I specialize in frontend and backend development, modern JavaScript frameworks, API design, and microservices architecture, and I enjoy turning complex challenges into reliable solutions.
I thrive in hands-on leadership roles, guiding product teams from concept to deployment, mentoring engineers, and aligning technical work with business goals. I stay curious about new technologies and continually refine processes to improve delivery speed and software quality.
Skills
Language
Bengali
Fluent
English
Advanced
Hindi
Advanced
Work Experience
Full Stack Developer and Technical Lead at DokuMe
January 1, 2019 - PresentLed a team of over 15 developers managing all phases of the software development lifecycle from planning to deployment. Implemented Agile and Scrum practices to improve delivery speed and transparency. Architected and developed enterprise-grade software solutions using JavaScript, Node.js, and SQL. Collaborated with QA, DevOps, and product teams to ensure high-quality releases. Mentored junior developers and enforced code quality through peer reviews. Oversaw performance evaluations and career development of engineering team members.
Senior Software Engineer at Sibyl Infotech
December 31, 2018 - August 30, 2025Designed and developed large-scale applications for healthcare and finance clients, ensuring data security by implementing encryption and secure authentication. Worked closely with business analysts to refine requirements into actionable development tasks. Improved performance of legacy systems through database optimization and code refactoring. Successfully led integration of third-party APIs related to payments and financial records. Delivered multiple high-availability solutions maintaining 99.99% uptime in production.
Software Engineer at Acumen Consultancy Services
September 30, 2010 - August 30, 2025Built web and desktop applications using C#, VB.NET, PHP, and JavaScript. Participated in end-to-end development cycles and client interaction. Migrated legacy applications to cloud platforms, enhancing maintainability. Provided critical bug fixes and technical support to end-users. Delivered over 15 projects on time with improved system performance via codebase refactoring and development of reusable components.
Full Stack Developer and Technical Lead at DokuMe
January 1, 2019 - PresentLed a team of 15+ developers across the full SDLC, introduced Agile and Scrum practices, and architected enterprise-grade software using JavaScript, Node.js, and SQL. Collaborated with QA, DevOps, and product teams to deliver high-quality releases; mentored junior engineers and oversaw performance development and code quality.
Senior Software Engineer at Sibyl Infotech
December 1, 2018 - October 22, 2025Designed and developed large-scale healthcare and finance applications; implemented encryption and secure authentication; refined requirements with business analysts; improved legacy systems via database optimization and refactoring; delivered high-availability solutions with 99.99% uptime.
Software Engineer at Acumen Consultancy Services
September 1, 2010 - October 22, 2025Built web and desktop applications using C#, VB.NET, PHP, and JavaScript; participated in end-to-end development and client interactions; migrated legacy applications to cloud platforms; supported end-users and resolved critical issues.
Education
Bachelor of Technology at Siliguri Institute of Technology, West Bengal University of Technology
January 1, 2002 - January 1, 2006Bachelor of Technology (B.Tech) in Information Technology at Siliguri Institute of Technology
January 11, 2030 - January 1, 2006Qualifications
Industry Experience
Healthcare, Manufacturing, Software & Internet, Consumer Goods, Education, Financial Services
Skills
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