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Open to full-time SWE roles
Virtual Internships: JPMorgan Chase & Co. · Walmart Global Tech

Full-Stack Software Engineer

Roshan Kumar Jha

Full-stack software engineer (React, Flutter, Node.js, FastAPI, Python) shipping production ERPs, mobile apps, REST APIs, and ML pipelines. Published ML researcher & 5-Star HackerRank Coder.

View my workDownload CV

Bengaluru, India

Live

Full-Stack + AI

React · FastAPI · PyTorch

5★ Python

HackerRank

3

Work roles

2

Job simulations

1

Published papers

JPMORGAN CHASE & CO. (SWE SIMULATION)
WALMART GLOBAL TECH (ADVANCED SWE)
FULL-STACK & ML ENGINEERING
5-STAR HACKERRANK PYTHON CODER
PUBLISHED ML RESEARCH (JETIR)
RELIABLE API & SYSTEM DESIGN
JPMORGAN CHASE & CO. (SWE SIMULATION)
WALMART GLOBAL TECH (ADVANCED SWE)
FULL-STACK & ML ENGINEERING
5-STAR HACKERRANK PYTHON CODER
PUBLISHED ML RESEARCH (JETIR)
RELIABLE API & SYSTEM DESIGN

01 — About Me

Turning complex problems into dependable systems.

Background & Engineering Focus

Full-stack software engineer with hands-on production experience spanning React 19, Flutter, Node.js, FastAPI, and Python. I specialize in building end-to-end applications — from Play Store mobile apps and multi-tenant web ERPs to high-precision ML forecasting pipelines.

Full-Stack & Mobile Systems

Shipped production web ERPs and Flutter Android apps live on Google Play Store, re-architecting single-tenant setups into multi-tenant platforms.

AI/ML & Reproducibility

Engineered LSTM/GRU time-series forecasting (92% accuracy) and ML prediction models with structured experiment tracking.

Enterprise & Resilience

Authored multi-region DR payment architectures, 12-domain SAP integrations, and comprehensive Cypress testing suites.

⭐ 5-Star HackerRank Coder (Python)📜 Published ML Researcher (JETIR)⚡ Agile & CI/CD Delivery
GPA 8.23 / 10.0

Education

B.E. in Computer Science

Sri Krishna Institute of Technology (VTU), Bengaluru

Aug 2022 – May 2026

11 Industry Certs

Verified Skills & Certifications

Certified in Python, Data Science, Generative AI (Google Cloud), Artificial Intelligence (IBM), and Cybersecurity.

Explore All 11 Credentials

02 — Toolkit

The stack I reach for.

Languages

6 skills
PythonJavaScriptTypeScriptJavaDartSQL

Frontend / Mobile

5 skills
ReactNext.jsFlutterHTML5CSS3

Backend

6 skills
Node.jsFastAPIDjangoREST APIsCeleryMicroservices

AI / ML

6 skills
PyTorchscikit-learnPandasNumPyLSTM / GRULLM Integration

Data / Cloud

6 skills
PostgreSQLMongoDBRedisAWS (EC2, S3, Lambda)DockerKubernetes

AI Dev Tools

4 skills
CursorClaudeGitHub CopilotAntigravity

Practices

5 skills
Agile / ScrumCI/CDGitSystem DesignUnit / Integration Testing

03 — Experience

Where I've shipped.

Full Stack Engineer

Zetheta Algorithms Private Limited

Event-Driven Notification Engine CertificateDevOps & Cloud DR CertificateLoan App CertificateAPI Integration CertificateJun 2026 – Aug 2026
  • Built LendSwift, an 8-step multi-step loan application form (React 19, React Hook Form, Zod) with encrypted auto-save, e-signature capture, and a 30+ case Cypress test suite.
  • Designed a 12-domain SAP S/4HANA-to-analytics integration architecture with a retry, circuit-breaker, and DLQ framework.
  • Authored a multi-region DR architecture for payment systems (active-active/active-passive designs, DNS failover, 12 disaster runbooks) and built an event-driven notification engine with compliance checks.
React 19TypeScriptNode.jsKafkaRabbitMQRedisTerraformOpenAPICypress

Machine Learning Intern

Karunadu Technologies Pvt. Ltd.

Verified ProofFeb 2026 – May 2026
  • Built a Movie Classification and Rating Prediction system and a Job Role Prediction model using supervised machine learning techniques.
  • Performed data preprocessing, feature engineering, model training, and evaluation, improving prediction accuracy through data cleaning and model optimization.
PythonPandasNumPyScikit-learnMatplotlibJupyter Notebook

Software Development Intern

Visabi Technologies Pvt. Ltd.

vERP 2.0 (Play Store)Proof PendingOct 2025 – Feb 2026
  • Built the sign-in/sign-up flow of the Android app in Flutter and extended development across the app's React-based screens; the app (vERP 2.0) is live on the Play Store.
  • Played a key role in re-architecting the web ERP from single-tenant to multi-tenant and led a substantial revamp of the web application, improving both structure and user experience.
FlutterDartReactPostgreSQLREST APIsAndroid

04 — Virtual Experience & Job Simulations

Enterprise Simulations.

JPMorgan Chase & Co.

🏦 #1 US Bank · Fortune 50

Software Engineering Job Simulation Participant · Forage

View Verified Certificate (PDF)Jul 2026
  • Completed practical tasks in project setup, Kafka message stream integration, H2 database connection, REST API endpoint integration, and REST API controller design.
JavaPythonKafkaH2 DatabaseREST APIs

Walmart Global Tech

🏆 #1 Fortune 500 Company

Advanced Software Engineering Job Simulation Participant · Forage

View Verified Certificate (PDF)Jul 2026
  • Completed practical engineering tasks in advanced data structures, software architecture, relational database design, and data munging pipelines.
Advanced Data StructuresSoftware ArchitectureRelational DBData Munging

05 — Selected work

Things I've built end-to-end.

Published · JETIR2512044

FinSight

AI Personal Finance Platform

  • React + FastAPI dashboard with LSTM/GRU forecasting (92%/90% accuracy) and Solana/Web3.js fiat + crypto tracking.
  • Awarded 2nd runner-up at the department exhibition. Published research paper in JETIR (Dec 2025).
Visit Live ProjectVerified JETIR Certificate (PDF)
ReactFastAPIPythonPostgreSQLPyTorchSolana
Multi-agent

Job OS

Multi-Agent Job Acquisition Platform

  • 10+ agent pipeline for job aggregation, resume-to-job LLM matching, and Playwright-based ATS automation with a Next.js approval dashboard.
Visit Live Project
FastAPINext.jsPostgreSQLCeleryRedisPlaywright

05 — Verified Credentials & Proofs

Certifications & Official Proofs.

Official Degree Program

B.E. in Computer Science

Sri Krishna Institute of Technology (VTU), Bengaluru · Aug 2022 – May 2026

GPA 8.23 / 10.0
Enterprise SWE

Software Engineering Job Simulation

JPMorgan Chase & Co. · Forage (Jul 2026)

Project SetupKafka IntegrationH2 DatabaseREST API Design & Controllers
View Verified Simulation PDF
Advanced SWE

Advanced Software Engineering Job Simulation

Walmart Global Tech · Forage (Jul 2026)

Advanced Data StructuresSoftware ArchitectureRelational DB DesignData Munging
View Verified Simulation PDF
Official Degree

Provisional Degree Certificate

Sri Krishna Institute of Technology

View Official Document
Academic Marksheet

Official Academic Transcript

Sri Krishna Institute of Technology

View Official Document
Language Verification

Medium of Instruction (English)

Sri Krishna Institute of Technology

View Official Document
Jul 2026

Event-Driven Notification Engine Certificate

Zetheta Algorithms Private Limited

View Certificate PDF
Jul 2026

DevOps & Cloud Engineer Certificate (Multi Region DR Architecture Payment Systems)

Zetheta Algorithms Private Limited

View Certificate PDF
Jul 2026

Custom API Integration Certificate

Zetheta Algorithms Private Limited

View Certificate PDF
Jul 2026

Front End Developer Certificate (Loan Application Form)

Zetheta Algorithms Private Limited

View Certificate PDF
Aug 2025

Crash Course on Python

Google · Coursera

View Certificate PDF
Aug 2025

Foundations of Data Science

Google · Coursera

View Certificate PDF
Aug 2025

Generative AI: Beyond the Chatbot

Google Cloud · Coursera

View Certificate PDF
Aug 2025

Introduction to Artificial Intelligence

IBM · Coursera

View Certificate PDF
Aug 2025

Project Initiation: Starting a Successful Project

Google · Coursera

View Certificate PDF
Aug 2025

Foundations of Project Management

Google · Coursera

View Certificate PDF
Aug 2025

Foundations of Cybersecurity

Google · Coursera

View Certificate PDF

06 — Contact

Let's build something worth shipping.

I'm open to full-time software engineering roles and interesting collaborations. The fastest way to reach me is email.

connect.rosn@gmail.comDownload CV (PDF)
+91-6363493731