Open to opportunities

Sagar Kancharla

@sagarkancharla

I build Java microservices, event-driven integrations, and high-volume backend systems across logistics, telecom, insurance, and distribution.

India

Message

What I'm looking for

I'm looking to build and own backend services and distributed systems end to end, from schema design and implementation through testing, observability, and production support, within Agile delivery teams.

At Winsupply, I build event-driven order-routing and rental catalog services using Spring Boot, Apache Kafka, Spring Batch, and JPA. I've delivered Avro schema contracts, resilient supplier-feed processing, rental billing logic, Redis caching, IBM MQ integrations, and OAuth2-secured service-to-service calls.

I also established Kafka performance testing with k6 and xk6-kafka, defining latency and consumer-lag baselines for Confluent Cloud. By instrumenting services with Actuator, Micrometer, and Datadog, I replaced manual log triage with dashboards and alerts for consumer lag and batch failures.

Previously at Concentrix Catalyst, I built Spring Boot microservices and REST APIs that unified transportation volume, rate, and competitor data for six Marketing & Sales business groups. I integrated asynchronous RabbitMQ and ESB workflows and raised test coverage from 70% to 85% with JUnit 5 and Mockito.

My earlier work spans telecom digital-channel journeys at Netcracker, policy and annuity APIs at MassMutual, and rental marketplace workflows at Rajasri Infotech. I enjoy owning services end to end, from schema design and implementation through testing, observability, and production support.

Experience

Work history, roles, and key accomplishments

Current

Sr. Software Engineer – I

Current

Winsupply Inc.

Jun 2025 - Present (1 year 3 months)

Developed event-driven order-routing microservices using Spring Boot and Apache Kafka, designed Avro schemas, and implemented Spring Batch jobs for supplier feeds. Built rental billing logic and introduced Redis caching and Datadog monitoring.

Java Spring Boot Kafka Avro Schema Registry SpringBatch Spring Data JPA Redis Lettuce IBM MQ JMS OAuth Okta Spring Security Datadog Micrometers Spring Boot Actuator Docker Jenkins Git

Software Engineer – II

Concentrix Catalyst

Sep 2023 - Jun 2025 (1 year 9 months)

Built Spring Boot microservices aggregating transportation data for multiple business groups, designed REST APIs, and integrated asynchronous workflows over RabbitMQ and ESB. Improved test coverage from 70% to 85% with JUnit and Mockito.

Java Spring Boot Microservices REST APIs RabbitMQ ESB JUnit5 Mockito Agile SQL

Software Engineer

Netcracker Technology Solutions Pvt Ltd

Jul 2022 - Aug 2023 (1 year 1 month)

Developed Java and Spring Boot microservices for digital-channel journeys, built Angular components integrated with Liferay portal, and resolved production defects in BSS order-management flows.

Java Spring Boot Microservices Angular Liferay BSS Order Management Code Review

Associate Technology Delivery

MassMutual India GCC LLP

Oct 2020 - Jun 2022 (1 year 8 months)

Developed and maintained Spring Boot REST APIs for policy administration and annuity workflows, optimized SQL queries, and built test suites with JUnit and Mockito.

Java Spring Boot REST APIs SQL Junit Mockito WildFly

Associate Software Developer

Rajasri Infotech

Mar 2017 - Sep 2020 (3 years 6 months)

Delivered backend features for a rental marketplace using Java, Spring Boot, and MySQL, implemented rental availability and billing logic, and designed MySQL schemas for growing data volumes.

Java Spring Boot MySQL Tomcat Rental Management Billing SQL