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mohitduhan19/README.md

Hi, I'm Mohit Kumar

Software Engineer (Backend) — 3+ years building full-stack and backend systems across EdTech, analytics, and enterprise CRM domains.

📍 New Delhi, India · 📫 mohitkumar72956@gmail.com · LinkedIn

About

I design and ship scalable backend systems and full-stack applications — from microservices architecture and REST/GraphQL APIs to production deployments on Docker, Kubernetes, and AWS. I'm currently mentoring software engineers in DSA and System Design at Programming Pathshala, after building a real-time leaderboard platform at Coding Blocks and enterprise CRM workflows at Cubastion Consulting.

Open-source contributions

Merged contributions to Apache Iggy, OpenRewrite and Pylint · more in review at Testcontainers, OpenAPI Generator and OpenRewrite — see all PRs

Project Contribution Status
Apache Iggy Java SDK: build TCP clients from iggy:// connection strings (fromConnectionString on the blocking and async builders, with TLS options), matching the Rust, Node and C# SDKs ✅ Merged
OpenRewrite AddJaxwsRuntime: stop adding the old javax JAX-WS runtime when the project already uses Jakarta XML Web Services API 3.0 or later, which broke jakarta.xml.ws imports ✅ Merged
OpenRewrite Fixed the Mockito 1 → 5 migration skipping anyXOf matchers called through org.mockito.Mockito, with a regression test ✅ Merged
OpenRewrite MigrateJUnitTestCase: leave TestCase subclasses overriding run(TestResult) untouched instead of producing non-compiling code ✅ Merged
Pylint Raise a clear error when several --output-format reporters all write to stdout instead of printing every message once per format ✅ Merged
In progress (under review)
Project Contribution Status
OpenRewrite ExpectedExceptionToAssertThrows: declare the captured exception with the matcher's exception type 🔄 In review
Testcontainers Python Fixed infinite Ryuk recursion when TESTCONTAINERS_HUB_IMAGE_NAME_PREFIX is set 🔄 In review
Testcontainers Java Fixed single-file classpath JAR resources being extracted onto the shared temp directory 🔄 In review
Testcontainers Java Added getMappedPort(int, InternetProtocol) for UDP port lookups 🔄 In review
OpenRewrite MigrateAssertionFailedError: leave source files using junit.framework.TestResult untouched 🔄 In review
OpenRewrite ParameterizedRunnerToParameterized: run setup methods after the parameters are assigned 🔄 In review
OpenRewrite ParameterizedRunnerToParameterized: migrate classes whose @Parameters method is inherited 🔄 In review
OpenAPI Generator [core] Keep explicit inlineSchemaNameMappings when several inline schemas map to one name 🔄 In review
OpenAPI Generator [python] Support OpenAPI 3.1 properties with type null 🔄 In review

Tech stack

Category Tools
Languages Java, JavaScript, TypeScript, SQL
Backend Spring Boot, Hibernate, Node.js, Express, Microservices, REST & GraphQL APIs
Frontend React, Angular
Data MySQL, PostgreSQL, MongoDB, Oracle
Infra & DevOps Docker, Kubernetes, AWS, Azure, GCP, Jenkins, CI/CD
Testing JUnit, Mockito, Selenium, Postman

Featured projects

Project What it is
facespeak-ai-app Real-time face detection & tracking with Claude vision–powered captions and text-to-speech (React + Express)
inventory-management-system Full-stack inventory & order management system — FastAPI + PostgreSQL + React, Dockerized
Adv_dsa_26 Java solutions to advanced data structures & algorithms problems
DSA-QUESTIONS Java DSA problem-solving practice

Experience

Role Company Duration
Software Engineer & Mentor Programming Pathshala Jan 2026–Present
Freelance Senior Tech Consultant Tutedude Sep 2025–Jan 2026
Product Engineer Coding Blocks Jun 2024–Aug 2025
Software Engineer Cubastion Consulting Nov 2023–May 2024

Let's connect

LinkedIn · mohitkumar72956@gmail.com

Pinned Loading

  1. openrewrite/rewrite-testing-frameworks openrewrite/rewrite-testing-frameworks Public

    OpenRewrite recipes that perform common Java testing migration tasks.

    Java 100 107

  2. Adv_dsa_26 Adv_dsa_26 Public

    Java solutions to advanced data structures & algorithms problems (trees, graphs, DP, and more)

    5

  3. facespeak-ai-app facespeak-ai-app Public

    Real-time face detection & tracking, AI captions (Claude vision), and text-to-speech — React + Express

    JavaScript

  4. inventory-management-system inventory-management-system Public

    Full-stack inventory & order management system — FastAPI, PostgreSQL, React, Docker Compose, with CI

    Python