Sunil Rana.

Backend Engineer

Pune, Maharashtra, India6 yrs 2 mos experience

Highly Stable

Key Highlights

3+ years of backend development experience.
Expert in building scalable and secure web applications.
Proven success in fintech and crypto industries.

Stackforce AI infers this person is a Backend Developer specializing in Fintech and Blockchain technologies.

Contact

Skills

Core Skills

Backend DevelopmentApi Development

Other Skills

AJAXAlgorithmsAmazon Web Services (AWS)AngularJSBack-End Web DevelopmentBlockchainC++Cascading Style Sheets (CSS)CryptoData AnalysisData StructuresDjangoDockerExpress.jsFlask

About

As a backend developer with a Master's degree in Chemical Sciences from IIT Roorkee, I bring a unique blend of scientific problem-solving and full-stack engineering expertise. With 3+ years of hands-on experience, I specialize in building scalable, secure, and high-performance web applications using technologies like javascript ,Python ,Django , Node.js, Express.js, MongoDB, MySQL, and AWS. My passion lies in crafting robust backend systems, designing clean RESTful APIs, and optimizing application performance for real-world impact. I’ve successfully delivered production-grade applications in industries like fintech, crypto, and energy, and I thrive in fast-paced environments where I can architect solutions from the ground up. Currently, I’m focused on enhancing my skills in cloud infrastructure (AWS, Docker) and real-time data systems (WebSockets, Redis) to build more responsive and intelligent platforms. 💡 I believe in continuous learning, clean code, and teamwork — and I’m always open to exploring challenging backend roles where I can solve complex problems and scale systems that serve thousands of users

Experience

Sdk infotech pvt ltd

Back End Developer

Apr 2022 – Jun 2025 · 3 yrs 2 mos · Pune, Maharashtra, India · Hybrid

As a Backend Developer at SDK InfoTech, I was responsible for architecting, developing, and optimising scalable backend services, particularly for blockchain and crypto-based applications.
Key Responsibilities:
Designed and implemented RESTful APIs for a high-performance crypto trading exchange platform.
Integrated third-party services like CoinMarketCap, Binance, and blockchain wallets.
Managed MongoDB databases with efficient schema design and indexing for large datasets.
Implemented Redis caching to reduce DB load and improve API response time for order books and market data.
Built secure user authentication systems with JWT and role-based access control (RBAC).
Followed best practices in security (input validation, rate limiting, HTTPS via Nginx, etc.)
Collaborated closely with frontend and DevOps teams to ensure seamless integration and deployment.
Key Achievements:
Improved API latency by over 60% through Redis optimization and MongoDB indexing.
Developed and maintained modules for order matching, buy/sell request handling, and user wallet address management.
Ensured code quality and reliability through modular architecture, async patterns, and comprehensive logging.

Node.jsDjangoMongoDBRedisAPI DevelopmentBlockchain+1

Nss iit roorkee

Awareness Cell Secretory

Jan 2019 – Jan 2022 · 3 yrs · Roorkee, Uttarakhand, India · On-site

Supervised the planning and execution of various stages and streets play to aware people about social issues like Plastic waste, Road Safety, Ganga Cleaning etc.
Also Organized Blood Donation Camp, Cloth Collection Drive, Ganga Cleaning Drive and Sports Day under the aegis of NSS