Sagnik Chakraborty

Technology Lead

Sagnik Chakraborty

Designing scalable systems, modernizing legacy platforms, and leading cloud migrations that deliver measurable business impact.

View work View resume

Impact

Results from architecture and delivery

Outcomes from enterprise modernization, cloud migration, and commerce integration work.

11+

Years designing and delivering software systems

31%

Infrastructure savings after AWS migration and resource parking

47%

Sales growth from B2C PayPal guest checkout integration

Near real-time

Legacy ERP data published for enterprise-wide consumption

About

Engineering leadership with a modernization focus

Technology Lead with 11+ years of experience designing, developing, and deploying scalable software applications. Strong focus on software solution design and legacy modernization, with practical leadership across cross-functional teams.

I help teams move from idea to delivery—shaping architecture, integrating systems, and improving engineering productivity with modern tooling and Generative AI—while keeping quality and continuous improvement at the center of the work.

Expertise

Capabilities across the stack

Core strengths spanning backend platforms, cloud delivery, integration, and frontend systems.

Backend & Architecture

  • Java
  • Spring
  • Spring Boot
  • Node.js
  • MySQL
  • PostgreSQL
  • System Integration Design
  • Modular Monolith
  • Microservices
  • Legacy AS400 ERP Modernization

Cloud & Delivery

  • AWS
  • Docker
  • DevOps
  • Concourse CI
  • GoCD
  • Jenkins

Integration & Data

  • Kafka
  • Confluent Kafka
  • Google Apigee
  • PayPal API
  • Datadog

Frontend

  • JavaScript
  • React.js
  • Redux

Few work highlights

Professional case studies

Anonymized delivery highlights focused on architecture, migration, and integration outcomes.

Legacy ERP data to Confluent Kafka

Ideated, architected, and developed a solution to publish legacy ERP data into Confluent Kafka for enterprise-wide use.

  • Led technical architecture discussions with the enterprise architecture team to design a reusable platform across lines of business.
  • Published critical business details—including customer, invoice, and AR data—for downstream platform consumption in near real-time.
  • On average, about 10,000 records were published in around 15 minutes with payloads near 10MB.

❝ Near real-time enterprise data distribution ❞

AWS Migration

Led migration of a monolith web application built with React and Spring MVC from a legacy environment to a supervised AWS environment.

  • Containerized the application with Docker and orchestrated it on AWS ECS.
  • Enabled flexible scalability with Auto Scaling Groups.
  • Delivered infrastructure savings of around 25%, rising to 31% with strategic parking of resources during non-business hours.

❝ Up to 31% infrastructure cost savings ❞

Single Payment App

Designed, built, and deployed Spring Boot RESTful services for a one-payment portal initiative that enabled seamless customer payments.

  • Integrated multiple iSeries AS400 ERP systems for efficient data exchange.
  • Ensured reliable communication between RESTful services and legacy systems with graceful error handling and auto-retry mechanisms.

❝ Unified payments across legacy ERP systems ❞

B2C integration

Introduced B2C capability in an online order entry application by integrating the PayPal API so guest customers could purchase without registration.

  • Spearheaded the integration during COVID-19 to keep shopping available for non-registered users.
  • Increased sales by 47% and supported timely clearance of fresh produce inventory, reducing waste.

❝ 47% sales increase through guest checkout ❞

Experience

Infosys Limited

Hyderabad, Telangana, India

  1. Technology Lead

    May 2015 – Present Infosys Limited

    Leading architecture and delivery for modernization, cloud migration, and integration initiatives. Guiding cross-functional teams from concept through production with a focus on scalable design, legacy interoperability, and measurable outcomes.

Recognition

Honors and awards

  • Infosys Employee of the Quarter

    H1FY'21

  • Infosys RCLADM Unit Crown Award

    Most Valuable Player for H1 FY18

Contact

Let’s talk

Reach out by email or find selected work on GitHub.

Email Sagnik GitHub Resume

Hyderabad, Telangana, India