Headline

Software Engineer | React.js Developer with 3+ Years Experience | TypeScript, Next.js, REST APIs, AWS, OpenAI Integration

About

Frontend development isn’t just about building screens — it’s about creating fast, scalable, and impactful digital experiences that users genuinely enjoy. I’m a Frontend Developer with 3+ years of experience building production-ready web applications using React.js, TypeScript, Next.js, and modern frontend technologies. I specialize in developing responsive user interfaces, reusable component systems, and high-performance applications that improve both user experience and business efficiency. I also have hands-on experience with AWS deployments, REST API integrations, CI/CD workflows, and AI-powered features using OpenAI APIs. Currently, I’m working at DealerOn, where I design and optimize responsive web interfaces integrated with CMS platforms and Salesforce. Previously at Atum Information Technologies, I contributed to scalable SPA applications, secure payment integrations, and performance optimization initiatives that significantly improved application reliability and user engagement. Across projects, I’ve focused on clean architecture, maintainable code, testing, and measurable performance improvements. I’m now looking to grow into more challenging Frontend or Full Stack Engineering roles where I can contribute to scalable products, modern UI systems, and innovative AI-driven web applications while continuing to sharpen my system design and cloud engineering skills.

Location

Pune City

AI stack

claude

codex

opencode

Work experience

Frontend Web Designer at DealerOn, May 2025 - Present · 1 yr 3 mos, Pune District, Maharashtra, India, • Designed and developed responsive, cross-browser compatible web interfaces using React.js, TypeScript, HTML5, CSS3, and AWS, improving user engagement and accessibility by approximately 25%. • Built reusable UI component libraries integrated with CMS platforms and Salesforce, reducing repetitive development effort by nearly 30% across multiple client projects. • Optimized website performance and resolved critical UI issues through systematic debugging and frontend enhancements, improving site stability and delivery consistency by around 20%. • Collaborated with cross-functional teams using Git/GitHub workflows to ensure efficient project delivery and maintain high-quality development standards.

Frontend Web Developer at ATUM Information Technologies, Mar 2023 - May 2025 · 2 yrs 3 mos, Pune District, Maharashtra, India, • Developed scalable single-page applications (SPA) using React.js and TypeScript with API-driven architecture, improving page load performance by nearly 35%. • Integrated secure payment processing systems handling 1000+ monthly transactions with 99.9% uptime through robust error handling and optimized workflows. • Improved application reliability and UI quality by implementing structured testing and component-level optimizations, reducing UI-related defects by approximately 22%. • Enhanced frontend responsiveness and user experience using lazy loading, reusable components, and performance optimization techniques.

Software Engineer at Atum Information Technologies Pune, Mar 2023 - Apr 2025 · 2 yrs 2 mos, ● Developed and deployed a scalable single-page application (SPA) with real-time dynamic rendering, achieving ~35% improvement in page load performance through API-driven architecture, lazy loading, and responsive UI enhancements. ● Built and integrated secure payment processing pipelines handling 1000+ monthly transactions with 99.9% uptime, reducing transaction failures by ~20% via robust error handling and end-to-end workflow optimization. ● Enhanced application reliability through structured testing and UI optimization, increasing overall system stability by ~32%, while reducing UI-related defects by ~22% through automated validation and improved component-level testing coverage.

Process Executive at Spectrum Consultants India Private Limited, Aug 2021 - Feb 2023 · 1 yr 7 mos, Pune District, Maharashtra, India, Instrumental in the successful execution of the Camera 3DGT and Lidar Camera Sensors Project, specializing in data gathering and annotation for AI development in Driverless Automation Vehicles. Achieved a 98% accuracy rate in annotating data from received images, focusing on marking objects and classifying them based on automobile types, roads, road signs, and persons. Trained new team members, providing daily feedback that contributed to a 15% improvement in overall project efficiency and smooth team functioning .

Student-Full Time Fellowship Program[Full Stack Development] at Crio.Do, May 2021 - Aug 2022 · 1 yr 4 mos, Bengaluru, Karnataka, India, Completing the Crio program has been a transformative experience in my journey as a developer. The program's hands-on approach and industry-relevant curriculum provided me with real-world exposure to designing and building scalable applications. This program has not only shaped my technical abilities but also strengthened my mindset to approach problems with a solution-oriented perspective.

Education

Bachelor's degree, Mechanical Engineering, Kavayitri Bahinabai Chaudhari North Maharashtra University

Bachelor of Engineering, Mechanical Engineering, Shram

Public links

github: https://github.com/harshal-salunke