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gouravbyte/README.md

Gourav Barnwal

Senior Software Engineer · Backend & Distributed Systems
Bangalore, India · Credila · Previously Zenefits and MoneyTap

Focus: Java · Spring Boot · Kafka · PostgreSQL · AWS · event-driven architecture · data reliability · performance

Portfolio · Engineering notes · LinkedIn · Email

Engineering impact

  • Credila · 60,000 loans / 5 minutes · ₹12M+ recovery and operational impact · PostgreSQL CDC · Debezium · Kafka · audit tracking
  • Zenefits · 10,000 SMBs · benefits and insurance workflows · JWT authentication · caching · rate limiting · search queries: 30% improvement
  • MoneyTap · loan processing: 72 hours → 3 hours · API latency: seconds → milliseconds · automation · concurrency · caching

Production experience →

Selected projects

  • User-Agent Analyzer · Java 17 · zero dependencies · CLI + library · browser and OS detection
  • Kafka throughput lab: producer + consumer · 1 million records · consumer groups · offsets · failure recovery
  • TokenPicker · Chrome Manifest V3 · API token inspection · request headers · browser storage · cookies · session-scoped data
  • BookmarkUrlExtension · Chrome + Edge · bookmark URL rewriting · development and production environment switching

Project case studies →

Open source

Technical expertise

  • Backend: Java · Spring Boot · Python · REST APIs · Hibernate
  • Distributed systems: Kafka · Debezium · RabbitMQ · Amazon SQS · change data capture · consumer groups
  • Data: PostgreSQL · Redis · Elasticsearch · MongoDB
  • Cloud and tooling: AWS · Docker · Maven · S3 · Glue · Athena

Writing: Kafka consumer groups · PostgreSQL CDC · More engineering notes

Pinned Loading

  1. camunda-community-hub/zeebe-simple-monitor camunda-community-hub/zeebe-simple-monitor Public

    A monitoring application to show insides of Zeebe for developers

    Java 180 112

  2. user-agent-analyzer user-agent-analyzer Public

    Java 17 · dependency-free · CLI + library · user-agent parsing · browser and OS detection

    Java

  3. TokenPicker TokenPicker Public

    Chrome MV3 · API token inspection · request headers · storage · cookies · active tab

    JavaScript 1

  4. kafka-producer-example kafka-producer-example Public

    Kafka producer · 1M-event workload · partitioning · consumer groups

    Java

  5. kafka-consumer-example kafka-consumer-example Public

    Kafka consumer groups · 1M-event workload · offsets · failure recovery

    Java

  6. BookmarkUrlExtension BookmarkUrlExtension Public

    Chrome + Edge · bookmark URL rewriting · development/production environment switching

    JavaScript