ABOUTOPEN SOURCEBLOGPROJECTSACHIEVEMENTSCONTACTRESUMELET'S CONNECT
01 /
From India with
Love
Open for work

Full-Stack
Developer

Next.jsTypeScriptReactNode.js
Dr & Me
Jyatin Kumar Singh

Building practical full-stack applications
for real users.

Open for internships / software roles
Based in India
Jyatin
Kumar Singh
2026 Portfolio
I based in
India,
Passionate in Full-Stack & Scalable Systems
Selected workDownload CV
Design & code by Jyatin
Web Dev
&
App Dev
Expertise
Frontend Development
Backend Systems
Responsive Design
API Integration
Database Architecture
02 / Experience
2026SDE Intern

Software Development Engineer Intern — KaHo Technologies

Building and shipping customer-facing product features for the Parent App using Next.js, React, JavaScript, and TypeScript.

Bengaluru, India · RemoteSep 2026 – Present
01

Built and shipped parent verification forms and real-time toast notification systems, contributing to 5+ production features and bug fixes.

02

Cut form submission failure rate by 50% (20% to 10%) by redesigning client-side validation logic and implementing structured error handling across key user flows.

03

Boosted image rendering performance by 60%+, achieving consistent sub-500ms load times and eliminating recurring stalling issues through optimized lazy-loading and caching strategies.

Next.jsReactJavaScriptTypeScript
03 / Open Source

Open
Source

Beyond building my own projects, I contribute to open-source software to work with production codebases, collaborate with maintainers, debug real-world issues, and learn engineering practices that go beyond coursework.

01OpenStoryStorybook / MSWMerged

Migrated Storybook MSW setup to v3

Migrated the Storybook mock-service-worker setup from msw-storybook-addon v2 to v3, replacing the removed initialize() flow with the v3 mswLoader approach and registering the addon correctly.

View PR
What I worked on

Also fixed Windows/Vite path resolution in the Storybook server stub by converting the runtime path to a file URL, then verified Storybook startup, preview rendering, diff cleanliness, linting, formatting, dead-code checks, and typechecking.

Experience gained

Production dependency migration, platform-specific debugging, Storybook configuration, CI validation, and maintainer review in a real open-source workflow.

TypeScriptStorybookMSWViteTestingGit
02OpenFeature JS SDKReact / SDKOpen

Honor default values for missing feature flags

Fixed the React FeatureFlag component so FLAG_NOT_FOUND does not incorrectly trigger the error fallback, allowing the normal evaluation path to honor the supplied defaultValue.

View PR
What I worked on

Added regression coverage for a missing flag with defaultValue={true}; the pull request reports 7 test suites and 86 tests passing, plus git diff --check.

Experience gained

SDK semantics, edge-case debugging, localized production changes, and regression testing in an established TypeScript/React codebase.

TypeScriptReactSDKsFeature FlagsJestGitHub
03OpenFeature JS SDKSpecification / TestingOpen

Updated specification requirement references

Updated outdated requirement labels in the server client test suite to match the revised OpenFeature specification numbering, without changing SDK behavior or test assertions.

View PR
What I worked on

Updated the requirement references in packages/server/test/client.spec.ts and verified the focused server client test: 1 suite passed with 45 tests passing, alongside git diff --check.

Experience gained

Specification-driven development, test organization, focused verification, and making precise maintenance changes inside a mature SDK.

TypeScriptJestTestingSpecificationsGitHub
04Speech DispatcherLinux / Text-to-SpeechMerged

Added Edge TTS generic output module

Added an Edge TTS generic output module for Speech Dispatcher with multilingual voice mappings, dependency checks, and a pipe-based audio pipeline.

View PR
What I worked on

Integrated edge-tts with mpg123 and the existing playback command, added module distribution entries, switched the shell execution path to bash for the pipeline, and documented Edge TTS support in the project README.

Experience gained

Linux audio architecture, CLI integration, dependency management, maintainer-driven iteration, and working safely inside an established systems project.

CBashEdge TTSLinuxAudioGit
03 / About

About

I'm Jyatin Kumar Singh, a B.Tech Computer Science student at Lovely Professional University, graduating in 2028. I build full-stack applications, practise DSA, explore AI/RAG systems, and contribute to open source.

My main stack is JavaScript/TypeScript, React, Node.js, Express.js and MongoDB, with C++ and Java for problem solving. I enjoy taking an idea from a rough concept to a working product.

Passionate about clean code, problem-solving, and collaboration, with a focus on delivering high-performance, user-centered applications.

200+
LeetCode
100
Day Streak
150+
GFG / Codeforces
5
Merged PRs
Frontend
JavaScriptJavaScript
TypeScriptTypeScript
ReactReact
Next.jsNext.js
Tailwind CSSTailwind CSS
HTML5HTML5
CSS3CSS3
Backend
Node.jsNode.js
Express.jsExpress.js
REST APIsREST APIs
Database
MongoDBMongoDB
MySQLMySQL
PostgreSQLPostgreSQL
Tools
GitGit
GitHubGitHub
DockerDocker
VS CodeVS Code

Java · C++ · Python · AI · RAG · DSA · Open Source

04 / Projects

Featured Work

Selected projects focused on practical products, reliable systems, and applied AI.

View all
04 / Blog

Notes &
Writing

A place for technical notes, engineering lessons, and things I learn while building and contributing to software.

01 / Technical Notes

Event-Driven Music Recommendation Systems

A technical case study on building a recommendation platform around Kafka, stream processing, batch ML, and a learn-to-rank feedback loop — exploring how real-time events and offline learning can work together at scale.

KafkaRecommender SystemsSystem Design
LinkedIn Interactive IEEE PDF
02 / Open Source

How Open Source Introduced Me to a Whole New World of Engineering

Reflections on moving beyond personal projects into real production codebases — learning to read unfamiliar systems, debug real issues, collaborate with maintainers, and grow through open-source engineering.

Open SourceEngineeringGitHub
LinkedIn
03 / Hackathons

How Hackathons Changed the Way I Work

From Gear Up Season 5 at LPU to building under real deadlines, hackathons taught me to move from ideas to working systems faster, communicate better with teammates, stay calm when things break, and become more confident in solving unfamiliar problems.

HackathonsTeamworkProblem Solving
LinkedIn
05 / Recognition

Recognition
& Milestones

A focused record of problem solving, consistency, open-source contribution, and production engineering.

2026Problem Solving

200+ LeetCode Problems

Consistent DSA practice with Java as primary language for interview prep

2026Consistency

100-Day Streak

Maintained a 100-day LeetCode practice streak building consistency in algorithms and data structures

2026Open Source

5 Merged Open-Source PRs

Contributed fixes and improvements across 120+ GitHub contributions, learning from real production codebases

2026Software Engineering

SDE Intern at KaHo Technologies

Shipped 5+ production features for a customer-facing app, cutting form failure rates by 50%

07 / Progress

Proof of Work

A snapshot of the habits, research, hackathons, communication, and work that shape my development journey.

2026
Problem Solving

200+ LeetCode Problems

Consistent DSA practice focused on problem solving, with Java as a primary language for interview preparation.

2026
Consistency

100-Day Streak

Maintained a 100-day LeetCode practice streak while building consistency in algorithms and data structures.

2026
Open Source

5 Merged Open-Source PRs

Contributed fixes and improvements to open-source projects while learning from real production codebases.

2026
Building

120+ GitHub Contributions

Built and maintained projects across full-stack development, AI/RAG exploration, and developer tooling.

2026
Research & AI

Authored & Submitted Research Paper

Authored and submitted a research paper on an IoT–AI digital twin for predictive water-stress and intervention planning in Bengaluru.

2026
Hackathon · 28 Aug

DevStorm 2026 — 6th Place

Secured 6th place in DevStorm 2026, a 36-hour hackathon organized by SPIRIT under the Division of Youth Affairs and Student Welfare Wing, LPU.

2026
Communication · 20 Aug

Clash of Minds — Badge of Appreciation

Successfully participated in the competitive Group Discussion and Extempore Speaking event organized by CPE and Mittal School of Business at LPU.

06 / Certifications

01 / Credential

Oracle Java SE 21 Developer Professional (1Z0-830)

02 / Credential

ReactJS (Infosys Springboard)

03 / Credential

Database Management Systems Part-1 (Infosys Springboard)

04 / Credential

C++ with OOP (Cipher Schools)

05 / Credential

Oracle Cloud Infrastructure 2025 Certified AI Foundations Associate

08 / Contact

Let's Build

Something.

I'm open to internships, software roles, open-source collaboration, and interesting projects where I can build, learn, and contribute.

Download Resume

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