Open to Full-Time & Founding Roles Java, Go, TS · Kafka CDC

Software engineer.
I make systems reach
the machines they were
never designed for.

Two-time Google Summer of Code contributor (MIT App Inventor, Debezium / Red Hat). 26 merged pull requests across 13 open source organizations. Specializing in high-throughput distributed systems, CDC pipelines, and zero-downtime automation.

2× GSoC Scholar MIT & Debezium
26 Merged PRs 13 Open Source Orgs
13 Organizations Red Hat · MIT · CNCF
99.99% Target Uptime Distributed CDC
Divyanshu Kumar - Senior Backend & Distributed Systems Engineer
GSoC · Debezium / Red Hat
$ cdc.events.stream() · 26 PRs
📍 Gurugram, IN
Divyanshu Kumar Distributed Systems · CDC Infrastructure
Open to Roles
INTERACTIVE REVERSE ENGINEERING SIMULATOR LIVE KAFKA · DEBEZIUM CDC
REAL-TIME TELEMETRY
debezium-conductor-cli Quarkus 3.8.4 Native · PID 40912
STREAMING
QUICK ACTIONS:
CASE STUDIES & ARCHITECTURE

Selected Engineering Work

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Debezium / Red HatMay 2024 - Aug 2024

Host-Based Native Debezium Deployment

Automated systemd daemon provisioning with Ansible, eliminating container orchestration overhead for low-footprint edge targets.

< 2 minDeployment Latency
320 MBMemory Footprint
Sub-secondKafka CDC Lag
8 PRsMerged PRs
Java 21AnsibleKafka CDC
Deep dive →
MIT App InventorMay 2023 - Aug 2023

Horizontal UI Layout & Component Overhaul

Modernized visual design system, fixed drag-and-drop collision bugs, and resolved 14 long-standing issues in the visual programming workspace.

14 PRsMerged PRs
18 IssuesIssues Resolved
JavaGWTBlockly
Deep dive →
Production Architecture2023 - Present

Event-Driven E-Commerce Microservices

Distributed transactions with 202 Accepted async polling, PostgreSQL pessimistic locks, and Keycloak 24 OAuth2/JWT token verification.

10,000+Target QPS
42 msP99 Response
Spring Boot 3KafkaPostgreSQL
Deep dive →
Global Open Source Ecosystem2023 - 2024

26 Merged PRs Across 13 Open Source Orgs

Traceable code footprint across CNCF, Red Hat, MIT, and Apache ecosystems, verified by public git commit signatures.

26Total Merged PRs
13Organizations
GitCI/CDGitHub Actions
Deep dive →
CORE COMPETENCIES

Stack & Systems Architecture

Detailed velocity metrics →

Languages & Runtimes

Java, Quarkus, Spring Boot, Spring Cloud Gateway, systemd daemons, OpenAPI.

Java 21 Quarkus 3 Spring Boot REST · 202 Accepted

Data, Streaming & Locks

Debezium CDC, Apache Kafka, Apache Avro, Schema Registry, PostgreSQL, sorted pessimistic locking.

Debezium CDC Apache Kafka PostgreSQL PESSIMISTIC_WRITE

Infrastructure & Security

Ansible automation, Docker, Kubernetes, Keycloak 24 OAuth2/JWT, Prometheus, Zipkin.

Ansible Keycloak 24 Docker & K8s Resilience4j
47 Total PRs
26 Merged PRs
20 Repositories
13 Organizations
PUBLICATIONS

Technical Deep Dives

dev.to profile ↗
dev.to Debezium CDC

From SSH Config to Running CDC Pipelines: Host-Based Deployment for Debezium Platform

A complete architectural guide to orchestrating native host-based Debezium change data capture deployments directly from SSH configurations without container runtime overhead.

dev.to Ansible & systemd

Building Zero-Touch Host Provisioning for the Debezium Platform

Automating idempotent host provisioning with Ansible playbooks and systemd service daemons to achieve resilient, zero-downtime edge CDC instances.

dev.to Async Lifecycle

Pipeline Deployment & Container Lifecycle with Background Polling: Building Debezium's Host Path

Implementing non-blocking HTTP 202 Accepted polling state machines, health monitoring, and asynchronous lifecycle controllers in Quarkus to eliminate gateway timeouts.

dev.to Quarkus ArC CDI

Build-Time CDI in Quarkus: Why @IfBuildProperty Changed My Entire GSoC Design

How compile-time dependency injection and build-time conditional bean resolution cut host agent resident memory to 34 MB and enabled instant native binary startup.

dev.to DevOps & Automation

I Learned Ansible From Scratch for My Open-Source Project — Here's the Full Breakdown

A comprehensive, first-principles breakdown of mastering infrastructure-as-code: inventory configuration, idempotent roles, handler patterns, and vault secrets for production Linux hosts.

dev.to Security & SSH

How I Finally Understood SSH Before Building a Real Open-Source Feature?

Demystifying asymmetric key cryptography, agent forwarding, strict host checking, and socket tunnels for secure remote daemon orchestration in open-source systems.

dev.to MIT App Inventor

GSoC Progress (Weeks 1–4) at MIT App Inventor — Building a Responsive GWT Interface

Modernizing legacy Google Web Toolkit (GWT) visual blocks, debugging drag-and-drop boundary collisions, and shipping backward-compatible responsive layouts for 1M+ active users.