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Senior Full-Stack Developer | Ruby on Rails Expert | 10+ Years of Experience I'm a seasoned full-stack developer with over a decade of experience building scalable web applications, SaaS platforms, and eCommerce solutions. I specialize in Ruby on Rails, React.js, and Tailwind CSS, and have delivered 50+ projects across industries like eCommerce, Healthcare, EdTech, and Real Estate. I bring deep expertise in backend architecture, performance optimization, database design, and clean, maintainable code. I’ve worked with startups and enterprises alike—helping teams ship fast, scale confidently, and improve user experience. Let’s connect if you're looking for someone who can lead development, mentor teams, or quickly jump into your existing codebase and deliver results.…Senior Full-Stack Developer | Ruby on Rails Expert | 10+ Years of Experience I'm a seasoned full-stack developer with over a decade of experience building scalable web applications, SaaS platforms, and eCommerce solutions. I specialize in Ruby on Rails, React.js, and Tailwind CSS, and have delivered 50+ projects across industries like eCommerce, Healthcare, EdTech, and Real Estate. I bring deep expertise in backend architecture, performance optimization, database design, and clean, maintainable code. I’ve worked with startups and enterprises alike—helping teams ship fast, scale confidently, and improve user experience. Let’s connect if you're looking for someone who can lead development, mentor teams, or quickly jump into your existing codebase and deliver results.

Rahul Singh

Full Stack Developer, Back-End Developer, Front-End Developer, +7

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Senior Full-Stack Developer | Ruby on Rails Expert | 10+ Years of Experience I'm a seasoned full-stack developer with over a decade of experience building scalable web applications, SaaS platforms, and eCommerce solutions. I specialize in Ruby on Rails, React.js, and Tailwind CSS, and have delivered 50+ projects across industries like eCommerce, Healthcare, EdTech, and Real Estate. I bring deep expertise in backend architecture, performance optimization, database design, and clean, maintainable code. I’ve worked with startups and enterprises alike—helping teams ship fast, scale confidently, and improve user experience. Let’s connect if you're looking for someone who can lead development, mentor teams, or quickly jump into your existing codebase and deliver results.…Senior Full-Stack Developer | Ruby on Rails Expert | 10+ Years of Experience I'm a seasoned full-stack developer with over a decade of experience building scalable web applications, SaaS platforms, and eCommerce solutions. I specialize in Ruby on Rails, React.js, and Tailwind CSS, and have delivered 50+ projects across industries like eCommerce, Healthcare, EdTech, and Real Estate. I bring deep expertise in backend architecture, performance optimization, database design, and clean, maintainable code. I’ve worked with startups and enterprises alike—helping teams ship fast, scale confidently, and improve user experience. Let’s connect if you're looking for someone who can lead development, mentor teams, or quickly jump into your existing codebase and deliver results.

Available to hire

Sahibzada Ajit Singh Nagar, Sect...

Senior Full-Stack Developer | Ruby on Rails Expert | 10+ Years of Experience

I’m a seasoned full-stack developer with over a decade of experience building scalable web applications, SaaS platforms, and eCommerce solutions. I specialize in Ruby on Rails, React.js, and Tailwind CSS, and have delivered 50+ projects across industries like eCommerce, Healthcare, EdTech, and Real Estate.

I bring deep expertise in backend architecture, performance optimization, database design, and clean, maintainable code. I’ve worked with startups and enterprises alike—helping teams ship fast, scale confidently, and improve user experience.

Let’s connect if you’re looking for someone who can lead development, mentor teams, or quickly jump into your existing codebase and deliver results.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Hindi

Fluent

Work Experience

Chief Technology Officer at SOBONIX

March 1, 2024 - Present

Defined and executed the company's technology vision, aligning it with business goals and product roadmap. Led the design, architecture, and development of scalable, secure, and high-performance web applications. Built and managed cross-functional tech teams; recruited top talent and fostered a high-performance engineering culture. Collaborated with stakeholders across product, marketing, and operations to drive innovation and user-focused solutions. Oversaw technology budgeting, vendor management, and infrastructure planning. Represented the technology function in investor meetings, due diligence, and fundraising efforts. Established security and compliance frameworks to meet industry standards (e.g., GDPR, SOC2).

Technology Lead at BLUEBASH

July 1, 2024 - July 16, 2025

Oversaw the company's technical team and all projects. Analyzed briefs, wrote progress reports, identified risks, and developed work schedules. Communicated effectively with the team and inspired them to reach their goals. Expanded industry knowledge by exploring different stacks and quickly identifying problems. Continuously worked on building innovative solutions and great products. Determined project requirements and developed work schedules for the team. Liaised with team members, management, and clients to ensure projects were completed to standard. Identified risks and formed contingency plans promptly. Kept up-to-date with industry trends and developments. Delivered presentations to relevant stakeholders.

Lead Software Engineer at BLUEBASH

March 1, 2022 - July 16, 2025

Built complex groups of back-end microservices, command line utilities, and data processing scripts. Designed and developed applications and coordinated with teams working on different infrastructure layers. Committed to collaborative problem solving, sophisticated design, and building quality products. Contributed to in-house product development. Incorporated automation and peer code reviews. Created architectural solutions and implemented design patterns. Practiced test-driven development and best coding practices.

Senior Software Engineer at BLUEBASH

March 1, 2021 - July 16, 2025

Developed information systems by studying operations; designed, developed, and installed software solutions; supported and developed the software team. Led a team responsible for building new and supporting existing websites. Managed multiple responsibilities across various project facets. Worked on Ruby on Rails applications and designed database architecture. Actively contributed to open source software and spree extensions. Used automation tools and DevOps practices including server administration, CI/CD, dockerizing apps, and GitHub actions. Incorporated WCAG 2.0 standards during development.

Software Engineer at MAROPOST

June 1, 2018 - July 16, 2025

Designed, developed, debugged, maintained, and supported multi-tier, web-based applications and reporting systems using MySQL Server, Ruby on Rails, Web Services, REST, OO Design Patterns, SASS, BDD, TDD, Linux Server Management, Memcache, Database Management, JavaScript, CSS, Redis, and other technologies. Familiar with the software development life cycle from system analysis to deployment. Built and maintained efficient, reusable Ruby code. Worked with multiple databases including MySQL, PostgreSQL, MongoDB, Redis, Cassandra. Database partitioning using shards and built multi-tenant applications. Worked on frontend technologies like Vanilla JavaScript, ChartJS, JQuery, ReactJS.

Software Engineer at ENBAKE

June 1, 2017 - July 16, 2025

Followed agile practices to design, build, and maintain Ruby on Rails applications. Specialized in building customized eCommerce applications using open source Spree/Solidus. Explored frontend tech including HTML, CSS, JQuery, JavaScript, Bootstrap, and Angular. Followed test-driven development practices using Rspec and Minitest. Built REST/SOAP APIs for mobile apps with Swagger API documentation. Conducted web scraping using Capybara, Selenium, and Mechanize. Expertise in page speed optimization techniques.

Software Intern at PLAYBUFF

May 31, 2015 - July 16, 2025

Worked on Unity 3D game development and built a puzzle game up to the 10th level. Explored C# language and wrote logic scripts using MonoDevelop. Effectively used 3D assets and sprite images.