Ruturaj Khalkar profile photo 1 on Tal

Ruturaj Khalkar

Full Stack Engineer | Node.js | TypeScript | Scalable APIs | React.js | OpenAI Integrations | 3+ Years Experience

Mumbai Metropolitan Region

4+ years of work experience

Sigmoid Frogs
Mar 20251 yr 3 mosPresent

Mumbai, Maharashtra, India

Sigmoid Frogs
Mar 20251 yr 3 mosPresent

• Architected and optimized backend services using Node.js, Express.js, and PostgreSQL to handle high-volume data and improve performance. • Designed and developed 200+ REST APIs, integrating the OpenAI API and asynchronous processing (message queues) to ensure scalability and reliability. • Implemented JWT-based authentication and RBAC, enhancing system security and access control. • Improved API performance by 30% through query optimization, indexing, and caching strategies.
Sigmoid Frogs
Feb 20251 yr 4 mosPresent

Mumbai, Maharashtra, India

At Sigmoid Frogs, I contributed as a full stack developer, focusing on creating seamless end-to-end functionality. My role involved utilizing technologies such as Node.js, TypeScript, SQL, React, and Next.js, while also integrating AWS services like S3 and EC2 to optimize performance. I gained valuable experience in managing data with Redis, enhancing application efficiency and responsiveness.
Avhan Technologies Pvt Ltd
Feb 20232 yrs 2 mosMar 2025

Mumbai, Maharashtra, India

React,Redux-Toolkit,Javascript, Node.js, MaterialUi -css library
Avhan Technologies Pvt Ltd
Feb 20232 yrs 2 mosMar 2025

• Built scalable frontend applications using React.js for enterprise-level clients. • Developed and maintained REST APIs using Node.js and Express. • Integrated secure authentication mechanisms using JWT. • Diagnosed and fixed critical production issues, increasing user satisfaction by 20%. • Delivered multilingual features for enterprise clients including SBIL and TATA AIG.
Newton School
Apr 20229 mosDec 2022

Pune, Maharashtra, India

Premium Learning Systems Private Limited
Aug 20217 mosFeb 2022

Pune, Maharashtra, India

Education

Bachelor of Engineering - BE, electrical engineer

Sandip Foundation's Sandip Institute of Engineering and Management, Mahiravani, Trimbak Road, Nashik 422213

20173 yrs2020

Salesforce Developer

Premiun Learning System Pvt. ltd. Pune

20211 yr2022

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Headline

Full Stack Engineer | Node.js | TypeScript | Scalable APIs | React.js | OpenAI Integrations | 3+ Years Experience

About

Full Stack Developer with 3+ years of experience building scalable and high-performance web applications using MERN stack and TypeScript. Experienced in developing production-grade systems across automobile, telecom, and healthcare domains. Skilled in React.js, Node.js, Express.js, PostgreSQL, Redis, AWS, and TypeORM, with strong expertise in building REST APIs, backend architecture, and performance optimization. Improved API performance by designing efficient database queries, caching strategies, and scalable system architecture. Passionate about writing clean, maintainable code and solving real-world engineering problems with practical, scalable solutions.

Location

Mumbai Metropolitan Region

Work experience

Full-stack Developer at Sigmoid Frogs, Mar 2025 - Present · 1 yr 3 mos, Mumbai, Maharashtra, India

Software Engineer at Sigmoid Frogs, Mar 2025 - Present · 1 yr 3 mos, • Architected and optimized backend services using Node.js, Express.js, and PostgreSQL to handle high-volume data and improve performance. • Designed and developed 200+ REST APIs, integrating the OpenAI API and asynchronous processing (message queues) to ensure scalability and reliability. • Implemented JWT-based authentication and RBAC, enhancing system security and access control. • Improved API performance by 30% through query optimization, indexing, and caching strategies.

Software Developer at Sigmoid Frogs, Feb 2025 - Present · 1 yr 4 mos, Mumbai, Maharashtra, India, At Sigmoid Frogs, I contributed as a full stack developer, focusing on creating seamless end-to-end functionality. My role involved utilizing technologies such as Node.js, TypeScript, SQL, React, and Next.js, while also integrating AWS services like S3 and EC2 to optimize performance. I gained valuable experience in managing data with Redis, enhancing application efficiency and responsiveness.

Software Developer at Avhan Technologies Pvt Ltd, Feb 2023 - Mar 2025 · 2 yrs 2 mos, Mumbai, Maharashtra, India, React,Redux-Toolkit,Javascript, Node.js, MaterialUi -css library

Software Engineer at Avhan Technologies Pvt Ltd, Feb 2023 - Mar 2025 · 2 yrs 2 mos, • Built scalable frontend applications using React.js for enterprise-level clients. • Developed and maintained REST APIs using Node.js and Express. • Integrated secure authentication mechanisms using JWT. • Diagnosed and fixed critical production issues, increasing user satisfaction by 20%. • Delivered multilingual features for enterprise clients including SBIL and TATA AIG.

Full-stack Developer at Newton School, Apr 2022 - Dec 2022 · 9 mos, Pune, Maharashtra, India

Salesforce Developer at Premium Learning Systems Private Limited, Aug 2021 - Feb 2022 · 7 mos, Pune, Maharashtra, India

Education

Bachelor of Engineering - BE, electrical engineer, Sandip Foundation's Sandip Institute of Engineering and Management, Mahiravani, Trimbak Road, Nashik 422213

Salesforce Developer, Premiun Learning System Pvt. ltd. Pune