ARPAN NANDI
KOLKATA
Summary
Cloud-focused technical lead with over 12 years of experience in designing and operating scalable distributed systems on AWS. Expertise in microservices architecture, cloud-native infrastructure, and containerization. Proven track record in leading engineering teams to modernize legacy systems and enhance system performance and deployment automation.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Lead Software Engineer
Epam Systems
Kolkata
06.2025 - Current
- Led development and operations of six event-driven microservices on AWS.
- Designed high-throughput fraud detection systems to process real-time transactions.
- Enhanced system reliability and monitoring through Splunk and observability tools.
- Guided engineers in optimizing microservice architecture performance and cloud best practices.
- Customer: Expedia
Lead Software Engineer
Epam Systems
Kolkata
02.2024 - 06.2024
- Refactored legacy monolith into cloud-native microservices architecture
- Built backend services using Spring Boot, Kotlin, DynamoDB, and Docker
- Implemented caching with Memcached and monitoring with SignalFx
- Deployed services in AWS cloud environment with containerized workloads
- Customer: Atlassian
Lead Software Engineer
Epam Systems
Kolkata
07.2023 - 02.2024
- Developed backend services for payroll processing platform
- Implemented tax calculations, reporting modules, and import pipelines
- Worked with CI/CD pipelines and container-based deployments
- Customer: UKG, Inc
Lead Software Engineer
Epam Systems
Kolkata
06.2022 - 07.2023
- Led System Account Remediation project integrating CyberArk with AWS
- Coordinated 12+ infrastructure and security remediation projects
- Managed cross-team collaboration, JIRA tracking, and cloud environment updates
- Customer: Novartis Institutes for BioMedical Research, Inc
Backend Developer and Lead
IBM
Kolkata
11.2021 - 06.2022
- Built fraud detection algorithms and backend services
- Implemented optimized data structures for scoring systems
- Developed standalone services for data processing and CSV pipeline generation
- Customer: American Express
Senior Solution Integrator
Ericsson
Kolkata
02.2016 - 11.2021
- Designed and built Spring Boot microservices deployed on AWS
- Automated deployments and modernized legacy Java platforms
- Developed internal compiler tools converting Gembase DSL into Java code
- Migrated legacy frameworks (Struts → JSF PrimeFaces)
- Customer: Orange France/ Sprint Corporation
Systems Engineer
TCS
Kolkata
03.2013 - 01.2016
- Developed enterprise Java and Oracle-based systems
- Built B2B portals and automated document processing using Spring Batch
Education
B.Tech -
WEST BENGAL UNIVERSITY OF TECHNOLOGY
03-2012
Skills
- Java
- Python
- Microservices
- Spring-boot
- Amazon Web Services(EC2, DynamoDB, IAM, CloudWatch, S3, Bedrock, Lambda, ASG, ECS, EKS, SQS)
- Docker
- Jenkins
- Git
- Bitbucket
- JIRA
- SQL Databases
- MySQL
- PostgreSQL
- NoSQL
- Amazon DynamoDB
- Oracle Applications
- Apache Kafka
- Apache Tomcat
- Cloud Computing
- Continuous Integration
- Data Structures
- Databases
- Concurrency
- Hibernate (Java)
- ReactJS
- Postman
- Splunk
- IntelliJ IDEA
- Cyberark
- Spring Batch
- Data Structures
- Databases
- Hibernate (Java)
- AWS management
- Cloud architecture
- Container orchestration
- Continuous integration
- Cloud computing
Certification
- Google Project Management, Google on Coursera, 04/01/25
- Oracle Certified Associate, Java SE 7 Programmer, 09/01/17
- ITIL Foundation CPD, 08/01/17
Languages
- English
- Bengali
- Hindi
Timeline
Lead Software Engineer
Epam Systems
06.2025 - Current
Lead Software Engineer
Epam Systems
02.2024 - 06.2024
Lead Software Engineer
Epam Systems
07.2023 - 02.2024
Lead Software Engineer
Epam Systems
06.2022 - 07.2023
Backend Developer and Lead
IBM
11.2021 - 06.2022
Senior Solution Integrator
Ericsson
02.2016 - 11.2021
Systems Engineer
TCS
03.2013 - 01.2016
B.Tech -
WEST BENGAL UNIVERSITY OF TECHNOLOGY