Summary
Senior Software Engineer with 5+ years of experience building and scaling production SaaS applications using React, TypeScript, Next.js, Node.js, and AWS. Experienced in leading frontend architecture and owning complex features end-to-end — from initial product requirements and technical design to deployment, CI/CD, and production release. With a strong full-stack foundation in PostgreSQL and cloud services, I translate business goals into scalable technical architecture rather than just writing UI code, bringing a product-first mindset to modernizing legacy systems and shipping high-impact features for fast-paced startups.
Experience
Senior Frontend Engineer Bicycle AI-India (Remote)May 2024-Current
- Modernized a 5+ year-old React and TypeScript codebase, restructuring legacy modules and frontend patterns to reduce technical debt and make feature development easier to maintain.
- Owned complex frontend features from product requirements and technical design through implementation, API integration, testing, and production release.
- Migrated the frontend from CRA to Vite and re-architected the Docker build and deployment flow with CDN support, reducing build times by 75% and asset load times from seconds to milliseconds.
- Built Cypress E2E coverage for critical user flows and integrated test execution, logging, and Slack failure alerts into GitLab CI/CD pipelines.
- Built internal UI documentation and reusable frontend patterns while mentoring junior engineers through implementation and code reviews.
Founder & Product Engineer SyntaxWork Solutions-IndiaApr 2023-Current
- Built and shipped production React and Next.js applications for early-stage startups, owning features from requirements and technical design through deployment.
- Architected complex frontend workflows using React Query, Zustand, Redux Toolkit, reusable component patterns, and API-driven state management.
- Built embedded React widgets with real-time chat and video capabilities, using Shadow DOM to isolate application state and styles within third-party storefronts.
Founding Engineer & Lead Developer ClimeTech-Texas, USA (Remote)Mar 2022-Apr 2023
- Built ClimeTech, a multi-tenant B2B SaaS platform for carbon emissions tracking, owning the product end-to-end using React, Node.js, MongoDB, and TypeScript.
- Designed the multi-tenant application architecture and AWS infrastructure across EC2, S3, and Lambda.
- Led technical implementation from product requirements through development, deployment, and production releases.
Top Rated Freelancer Upwork-RemoteApr 2020-Mar 2022
- Partnered with early-stage startups and YC founders on long-term engagements, working as an embedded engineer to build and scale production web applications.
- Owned full-stack development across React, Next.js, Node.js, and AWS, delivering new product features, integrations, and performance improvements.
- Earned Top Rated status with a 100% Job Success Score through consistent, high-quality delivery.
Projects
SyntaxSuite – Client Operations Platform SaaS Product- (Next.js + NestJS + PostgreSQL + Prisma + AWS + TypeScript)
Building SyntaxSuite, a multi-tenant agency operations platform using Next.js, NestJS, PostgreSQL, Prisma, and AWS. Architected authentication, RBAC, tenant-isolated client and project workflows, document management, and AI-powered workflows with a modular, type-safe backend architecture.
Design Palace - Textile Design E-commerce Freelance Project- (Next.js + Prisma)
Architected and built a modern e-commerce platform for digital textile designs featuring artwork catalogs, dynamic preview rendering, instant asset downloads, and responsive catalog browsing using Next.js, TypeScript, Prisma, and Tailwind CSS.
Slat - A Project Management System Final Year Project - 2022- (MERN + AWS)
Engineered a full-stack workflow management platform equipped with interactive Kanban boards, organizational charts, resource planning modules, and agile task tracking using the MERN stack and AWS.
Education
Bachelor of Engineering: Computer Engineering (GPA: 9.54/10) Savitribai Phule Pune University-Pune, IndiaAug 2018-May 2022
Coursework: Data Structures and Algorithms, Object Oriented Programming, Machine Learning, Database Management Systems, Software Engineering and Project Management, Artificial Intelligence and Robotics, Operating Systems, Web Technology, Computer Networks
- As Treasurer of Pradnyan ACM Student Chapter DYPCOE, led event management and contributed to technical workshops on Java, Python, and ReactJS.
- Boosted event engagement and community connection as a Graphic Designer & Content Creator, and enhanced coding culture as a Problem Setter.
Skills
Frontend
TypeScript, JavaScript, React, Next.js, React Query, Zustand, Redux Toolkit, Tailwind CSS, HTML, CSS
Backend & Data
Node.js, NestJS, PostgreSQL, Prisma, MongoDB
Tools & DevOps
Vite, Cypress, Git, GitLab CI/CD, Docker, AWS, Vercel, Figma, Postman
Languages
English, Hindi, Gujarati
Certifications
- 2023-Shopify - Shopify Foundations Certifications
- 2023-Upwork - Frontend Skill Certification
- 2020-FreeCodeCamp - Front-end Developer Certification
- 2020-FreeCodeCamp - Responsive Web Design
- 2020-FreeCodeCamp - JavaScript Algorithms and Data Structures
Achievements
- Upwork Top Rated Badge with 100% Job Success Score across 50+ projects.
- Top 20 Finalist in MHRD Samadhan 2020 Challenge (national-level hackathon).
- 10+ Hall of Fame recognitions from NCIIPC (Government of India) for cybersecurity contributions.
- 2nd Prize in Project Presentation at CSI Regional Convention, New Delhi.
References
Karan is a highly skilled full stack developer who possesses a rare combination of technical expertise and creative vision. Throughout our product development project, he consistently demonstrated his ability to quickly adapt to new and challenging tasks, whether it was developing AI models or deploying a SaaS solution. He was always willing to take on new responsibilities and learn new technologies, which is a testament to his passion for software development. His recommendations on design, promotion and other aspects of product development were insightful and invaluable, making him an indispensable member of our team. Karan is not only a talented coder, but also a dependable, hardworking, and highly motivated individual who will be a valuable asset to any company. I highly recommend him!
I hesitate to give feedback because I dont want to share Karan. However, he is by far the best developer that I have ever worked with. From day one, I had a burden lifted from my shoulders because I knew that I could trust him to complete the job in an outstanding manner. Not only is he extremely flexible, but he would often suggest little improvements that made the whole project much better than I had initially planned.
Interests
Besides my job, I have many interests that help me grow and stay balanced. I'm very into fitness because it makes me feel good and teaches me to set and reach goals. I also love being creative, like drawing, writing, and taking photos, which lets me see the world in new ways. Staying updated on web tech and design is important for my work, so I listen to podcasts, go to events, and use Twitter to learn more. When I want to relax, I watch Netflix. I enjoy documentaries and dramas because they tell powerful stories and connect with people. These activities keep me focused, curious, and always learning.
