Hi, I'm Arsh 👋

Curious. Builder. Learner.

Arsh Tiwari

About

I'm Arsh Tiwari, a Computer Science undergraduate (CGPA: 8.77) currently working as a Software Developer Trainee at Gemini Solutions, with a strong interest in building scalable full-stack systems and AI-powered applications.

Previously, I've worked as a Software Developer Intern at MathonGo, where I contributed to products serving 1L+ users, as an AI Intern at Mappls, and as a Full-Stack Intern at Eterna Infotech. These experiences have given me hands-on exposure to production applications, frontend systems, backend development, and AI-driven solutions.

I have a strong foundation in core computer science, including Data Structures & Algorithms, Operating Systems, DBMS, Computer Networks, and System Design (LLD & HLD). I also actively practice competitive programming to strengthen my problem-solving and algorithmic thinking. I'm a Pupil on Codeforces, 2★ on CodeChef, and a Knight on LeetCode, with a strong focus on Data Structures & Algorithms using C++.

Beyond software development, I'm genuinely interested in Generative AI and enjoy exploring LLMs, retrieval systems, and AI-powered applications. I like understanding not just how these systems work, but how they can be applied to solve practical problems.

I also enjoy building and solving problems under pressure through hackathons. I've won approximately 5 hackathons and was a Smart India Hackathon (SIH'25) finalist. I've also mentored hackathon participants, helping teams refine their ideas, technical approach, and presentations.

I also create tech content on YouTube, where I share what I learn about Data Structures & Algorithms, System Design, hackathons, and practical software engineering.

Disciplined, self-driven, and constantly learning, I'm always looking for dynamic environments where curiosity, innovation, and meaningful work are valued.

I absolutely love Competitive Programming

Solving data structures & algorithms problems and continuously improving my problem solving skills.

These platforms showcase my journey in competitive programming, focusing on consistency, problem solving, and continuous learning.

Technical Skills

Frontend

React.jsNext.jsTypeScriptTailwind CSSZustandSWRWebRTCWebpackRedux Toolkit

Backend

GolangNode.jsExpress.jsGraphQLSocket.ioWebSocketsRESTful APIs

Database

PostgreSQLMongoDBMySQLRedis

DevOps & Tools

GitGitHub ActionsDockerVercelRailwayAmazon web services (foundational)NGINXPostmanZod

Architecture & System Design

MicroservicesEvent driven architectureMessage queuesWebSocketsRate LimitingCaching(Redis)

Streaming & Messaging

KafkaRabbitMQRedis Streams

Work Experience

Gemini Solutions Pvt Ltd

Software Developer Trainee

Gemini Solutions Pvt Ltd

Gurugram, Haryana, India (On-site)

June 2026 - Present

Working on software development assignments as part of the Software Developer Trainee program.

Building and strengthening practical software engineering skills through hands-on development and technical training.

Mathongo

Software Developer Intern

Mathongo

Bangalore, Karnataka, India (Onsite)

July 2025 - Jan 2026

Revamped the Quizrr platform (1L+ users) using React.js, improving page load time by 35% and boosting user engagement through consistent, scalable UI architecture.

Built the Notebooks feature end-to-end, designing reusable components and integrating backend APIs for data persistence, increasing feature adoption by 25% and improving session retention.

Implemented request deduplication for API calls by caching in-flight requests, reducing duplicate network calls by 40% and improving performance of data-heavy workflows.

Integrated RabbitMQ to handle asynchronous tasks of note-saving and analytics, offloading heavy operations from synchronous APIs and reducing API response time by 25% during peak usage.

Eterna Infotech Pvt Ltd

Software Developer Intern

Eterna Infotech Pvt Ltd

Manipal, Karnataka, India (Remote)

November 2024 – June 2025

Developed and scaled an E-learning platform (10K+ users) using React.js, improving initial load time by 40% via code splitting and modular architecture.

Optimized bundle size by enabling compression using Webpack, reducing JavaScript payload by 30%.

Reduced MongoDB query latency by 35% by adding compound indexes on frequently queried fields (userId, courseId) used in progress tracking and dashboard APIs.

Implemented CDN-based asset delivery for Australian users, reducing latency by 35% and improving load performance.

Implemented cache-aside pattern for frequently accessed course data using Redis, reducing repeated database hits by 30% during high traffic.

Mappls MapmyIndia

Developer Intern

Mappls MapmyIndia

New Delhi, India (Remote)

3 months

Contributed to the development of the Sanskriti app and AI-driven features, focusing on system design ideas and feature enhancements.

Collaborated with the development team to refine implementation strategies and improve application scalability.

Education

Bhagwan Parshuram Institute of Technology, Delhi

Bhagwan Parshuram Institute of Technology, Delhi

Bachelor of Technology (B.Tech) | Computer Science Engineering

Sep 2023 - Sep 2027

9.1 CGPA (6th Sem)

City Montessori School

City Montessori School

10th and 12th standard | PCM

2018 - 2022

98%

Check out my latest work

ApplyStack
ApplyStack
One stop job application tracking system

ApplyStack is a full stack job application tracker I built because I was managing 30+ applications in Google Sheets and losing track. It lets you log every application with its full lifecycle, applied, shortlisted, interviews, offer add tasks around them, save reusable cold message templates, and export everything to PDF. Under the hood it uses Redis caching to reduce DB load, RabbitMQ for async email delivery, and the whole thing runs in Docker so setup is one command.

Node.jsMongoDBRedisRabbitMQReact.js+1 more
GoSearch
GoSearch
Blazing fast developer first search engine

GoSearch is a lightweight, self hosted full text search engine that can index a million documents and answer queries in under 2 ms, with zero external dependencies beyond Go itself, built to be a cost free alternative to the amazing Elasticsearch.

GoGinRedisDocker

Latest Videos

Core Logic is where I share practical tech content covering software development, system design, DSA, cloud, hackathons, and concepts that help developers learn and build better.

View Channel →

Achievements

Milestones that reflect my consistency, competitive spirit, and commitment to engineering excellence.

Smart India Hackathon 2025 – Grand Finalist

2025

Ranked among the Top 5 teams nationally at SIH 2025.

5x Hackathon Winner & 6x Finalist

2023–2025

Won and reached finals in multiple national and state-level competitions.

IIT Delhi Mappls Hackathon – 1st Place

2025

Secured 1st position at Tryst 2025, receiving a cash prize and internship opportunity.

Smart Delhi Ideathon – Top 26

2025

Placed among the Top 26 teams in Smart Delhi Ideathon 2025.

Competitive Programming

2023–Present

Solved 250+ problems on LeetCode (1650+ rating) and CodeChef, actively participating in rated contests.

Tech Content Creator

2024–Present

200+ subscribers sharing coding tutorials and project walkthroughs on YouTube.

Letter of Recommendation

2024

Received a Letter of Recommendation from the CTO at Eterna Infotech Pvt. Ltd.

Building, Growing, Evolving 🚀

I believe in consistent self-growth, staying curious, and working hard toward meaningful goals. These are the values I live and work by.

Time Management

Balancing college, internships, and side projects with discipline and consistency.

Growth-Oriented

Focused on becoming a better version of myself every day — both personally and professionally.

Problem Solver

Enjoy turning challenges into opportunities with a solution-first mindset.

Entrepreneurial Spirit

Driven to build, lead, and innovate — always looking for ways to create impact.

Hardworking

Dedicated and persistent when it comes to learning, building, and improving.

Forever Learner

Curious by nature, always exploring new technologies, ideas, and perspectives.

Get in Touch

Have a project in mind or just want to say hi? Feel free to reach out via Linkedin. I’m always open to discussing new opportunities and connecting with like-minded individuals.

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codemintah

Nice Arsh, I think we should collaborate some time. This is my GitHub https://github.com/mintahandrews

Dec 29, 2024 3:24 PM

Boo

Great website 👏

Sep 19, 2024 12:18 AM

Sneha

Checking!

Aug 21, 2024 7:13 AM

Arsh Tiwari

hello world.

Aug 19, 2024 4:33 PM