Open to opportunities

Ravi Hasija

@ravihasija

Message

I’m a backend software engineer with 22+ years of Java experience building scalable microservices.

Zimbabwe

Message

What I'm looking for

I’m looking for a backend role where I can own systems end-to-end, build scalable microservices and event-driven pipelines, and apply strong cloud engineering on AWS and Kubernetes—paired with teams that value testing, code quality, and mentorship.

Backend software engineer with 22+ years of Java experience building scalable, high-performance microservices and distributed systems in production environments. I bring deep hands-on expertise in Spring Boot, Hibernate, OOP design patterns, multithreading/concurrency, and JVM performance tuning, and I consistently own workstreams end-to-end—from design through deployment.

I’m at my best when I can turn complex distributed state and high-traffic flows into reliable systems. I build REST APIs and microservices, apply rigorous testing and code quality practices (JUnit 5, Mockito/Spock, WireMock, Testcontainers), and use coverage gating and strong code review/mentoring to raise engineering standards.

Across my career, I’ve partnered backend development with cloud-native platforms—AWS (Lambda, API Gateway, SQS/SNS, DynamoDB, S3, CloudWatch, CDK, Terraform, CloudFormation) and container platforms (Docker, Kubernetes). I also design distributed messaging and async pipelines with Kafka, ActiveMQ, and Amazon SQS/SNS, backed by relational and NoSQL databases like Oracle, PostgreSQL, MySQL, MongoDB, and Cassandra.

Recently, I architected a serverless diagnostic automation platform at Amazon Robotics (Lambda, API Gateway, DynamoDB, SQS), cutting investigation time from 30–45 minutes to under 5 minutes. At Charter Communications, I led Kafka-based event-driven microservices at scale and migrated a high-traffic API to a containerized Spring Boot microservice with a 95% latency reduction—while also founding a Java User Group to drive continuous learning.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

98point6

May 2021 - Aug 2022 (1 year 3 months)

Built and delivered features for containerized services on a consumer telehealth SaaS platform. Migrated batch data ingestion to a real-time, event-driven REST architecture and introduced integration testing to improve deployment reliability.

Kotlin Java TypeScript AWS Step Functions AWS Lambda SQS REST Docker PostgreSQL Integration Testing

Senior Software Engineer

NWEA

Dec 2019 - Apr 2021 (1 year 4 months)

Built a high-throughput ETL test event generation tool producing hundreds of events per minute, replacing a 30-minute manual process with an automated async pipeline. Containerized the ETL pipeline to reduce onboarding/setup time and implemented an AWS Lambda in Rust for a performance-sensitive stage.

Java Spring Boot AWS Lambda SQS DynamoDB Terraform Docker PostgreSQL Rust ETL

Senior Software Engineer

Charter Communications

Feb 2015 - Nov 2019 (4 years 9 months)

Designed Kafka-based, event-driven microservices for high-throughput distributed message processing at scale. Led migration of a high-traffic API to a containerized Spring Boot microservice, achieving 95% latency reduction, and built AWS Lambda/ActiveMQ-based elastic scaling for peak traffic.

Java Spring Boot Kafka ActiveMQ AWS Lambda Kubernetes Docker Redis ELK Stack

Senior Software Engineer

Rackspace

Dec 2012 - Jan 2015 (2 years 1 month)

Built RESTful APIs (Java, Python) for Business Process Integration and developed an async file synchronization service using ActiveMQ. Set up an ELK stack for centralized logging and monitoring.

Java Python Spring Hibernate ActiveMQ MongoDB Cassandra Oracle Docker

Senior Software Engineer

Capital Group

Jan 2011 - Nov 2012 (1 year 10 months)

Developed and maintained a financial payments and adjustments web application with complex business validations and enterprise transaction management. Implemented audit requirements using a Java/Spring/Hibernate stack.

Java Spring Hibernate JBoss Junit Mockito Transaction Management

Software Engineer

Andesa Services Inc

Feb 2009 - Nov 2010 (1 year 9 months)

Modernized a legacy financial services application (Java 1.4, EJB 2.0) to a Web 2.0 platform. Applied GWT, Hibernate, and Oracle 10g on a JBoss-based environment to support the modernization effort.

Java GWT Hibernate Oracle 10g JBoss Web 2.0 J2EE Legacy Modernization

Software Engineer

Pentaho

Sep 2007 - Dec 2008 (1 year 3 months)

Played a key role in the software development life cycle for Pentaho Business Intelligence, contributing to design, implementation, unit testing, and build/packaging. Teamed on development of the new Web 2.0 UI for the Pentaho BI suite.

Programmer / Systems Analyst

Convergys

Dec 2004 - Aug 2007 (2 years 8 months)

Designed software architecture by defining requirements, building object-oriented models, and implementing custom projects. Partnered with business units and clients to formalize needs, provide support, and resolve issues quickly, earning Quality Contributor recognition from Convergys for key project performance.