Samiran Sengupta

About Samiran Sengupta

Backend Engineer with hands-on experience building and scaling real-world distributed systems powering EV charging infrastructure across India. Currently working at GLIDA, where I design and operate backend services that handle charging sessions, payments, device communication, and high-volume APIs used by thousands of EV users and charging points.I specialize in Java/Spring Boot and Node.js backend development, with deep exposure to microservices architecture, AWS cloud, and event-driven systems. My work involves building reliable APIs, optimizing database performance, ensuring idempotent payment flows, and maintaining high system availability in production environments.Key areas of experience include:• Designing scalable REST APIs and backend services for mission-critical workflows• Building and maintaining microservices on AWS (API Gateway, Lambda, EC2, DynamoDB, S3, CloudFront)• Integrating payment systems and implementing robust transaction handling• Working with device protocols (OCPP) and real-time system interactions• Improving performance, observability, and fault tolerance in distributed systems• Driving production debugging, incident resolution, and system reliabilityI enjoy solving complex backend problems — from designing clean architectures to optimizing systems under real traffic. Currently focused on deepening expertise in system design, scalability, and building resilient platforms.Open to challenging backend opportunities where I can contribute to building high-impact systems at scale.

Experience

1. Senior Software Engineer

   Fortum

   Aug 2023 — Present · Gurugram, IN

   Experienced in building scalable backend systems using Node.js (Express, ARC) and Java (Spring Boot). Proficient in AWS Lambda, API Gateway, and serverless architecture with DynamoDB and MySQL.Hands-on with data pipelines and automation — designed and implemented end-to-end flows from AWS to Snowflake using Tasks, Procedures, and Streams, with real-time data insights delivered via Power BI.Comfortable with REST API development, cloud-native architecture, database optimization, and full-stack integrations.

Education

• Delhi Public School Indirapuram

  10th

• Kalinga Institute of Industrial Technology, Bhubaneswar

  Bachelor of Technology - BTech, Information Technology

  2017 — 2021

• Delhi Public School Indirapuram

  12th