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CODE
●SYSTEM STATUS: ONLINE
SOFTWARE
DEVELOPER
I build digital products that refuse to be boring.
Python • JavaScript • Java • C++ • Node
/// OPEN FOR WORK /// FULL STACK DEVELOPMENT /// BACKEND DEVELOPER /// AI ENGINEER /// DATA ANALYST /// FAST /// SECURE /// OPEN FOR WORK /// FULL STACK DEVELOPMENT ///
AVATAR.JPGWho am I?
I am a software engineer driven by the challenge of bridging the gap between cutting-edge AI research and scalable production environments. Whether it is fine-tuning LLMs for domain-specific tasks or architecting real-time collaboration platforms, I focus on building systems that are as technically robust as they are user-centric.
</> Production-Grade AI: Experienced in developing RAG and fine-tuning LLMs
</> Full-Stack Mastery: Proficient in creating seamless and robust architectures.
</> Algorithmic Excellence: A Knight on LeetCode (Top 9% globally) with a 1st place finish at Coders' FaceOff.
Jharkhand, India
Available for work
TECH_DOMAINS
/// domain expertise ///
domains.shell
> Frontend_
- Redux
- Tailwind CSS
> Backend_
> Databases_
> AI & Data_
- LLM Fine-tuning
- Data Analysis
- Pytorch, TensorFlow, Scikit-learn
> Architecture & Design_
- Algorithmic Problem Solving
- Microservices
- Pub/Sub Systems
- Real-time Collaboration Systems
>> Always open to learning new technologies and expanding my skill set.
My Journey
Journey Timeline
Backend Developer Intern @ Naalanda AI
Feb 2026 - Present
Bangalore
- Developing a scalable RAG system for an EdTech platform, integrating vector databases and fine-tuning LLMs to deliver personalized learning experiences.
Software Engineer Intern @ SGF-Tech
Dec 2025 - Present
Mumbai
- Architecting a Headless E-commerce platform using Medusa.js and Mercurius, managing complex product logic within a scalable Monorepo.
Full Stack Developer @ Vanivert AI
July 2025 - Dec 2025
Una
- Architected a real-time conversational Voice Agent integrating STT, LLMs, and TTS engines to achieve human-like latency and intonation.
AI Research Intern @ Sleath Startup
Feb 2025 - June 2025
Lucknow
- Analyzed large-scale marketing datasets using Pandas and NumPy to identify key influencer engagement trends and performance metrics.
Data Analyst @ Fluencer Digital
May 2024 - July 2024
Ranchi
- Analyzed large-scale marketing datasets using Pandas and NumPy to identify key influencer engagement trends and performance metrics.
CODING_STATS
LIVE
GITHUB
roshan3101
Midnight Coder
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Commits
Trophy_RoomFetching...
Highest Rank
Achievements
10+ Repos
Popular
Contributor
Repositories
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Followers
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Commits
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Joined
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Matrix_Output
$gh --stats_
VIEW_GH →LEETCODE
roshanSahu3101
Problem solver
#Top 7.8%
Ranking
Performance_BadgesFETCHING
Active Badge
Locked
History Awards0 FOUND
No history awards
$leetcode --u_
VIEW_LC →Selected Works
CollabTask
CollabTask
Real-time enterprise collaboration platform with multi-tenant workspace architecture.
Next.js 16FastAPIWebSocketsRedisPostgreSQL
▸Engineered a high-performance event infrastructure using WebSockets, delivering sub-100ms real-time updates for team activity feeds.
▸Resolved write conflicts in multi-user environments by implementing Optimistic Locking, ensuring data integrity without compromising throughput.
▸Achieved end-to-end type safety by synchronizing Zod and Pydantic schemas, accelerating developer velocity by ~40%.
IntelliScrape
IntelliScrape
No-code web automation SaaS for designing and executing visual scraping workflows.
Next.jsNode.jsPrismaTypeScriptDAG Engine
▸Developed an interactive visual builder that parses JSON-based Directed Acyclic Graphs (DAGs) to execute multi-step automation tasks.
▸Designed a consumption-based credit system to track resource usage and prevent API abuse.
▸Secured sensitive user credentials using AES-256 encryption at rest for safe injection into automation workflows.
Slimnastics
Slimnastics
Comprehensive Gym Management & E-Commerce SaaS solution.
MERN StackRedux ToolkitTailwind CSSRazorpayGCP
▸Architected a secure RBAC system and JWT httpOnly cookie flow to isolate data across Admin, Trainer, and Member roles.
▸Integrated Razorpay with server-side validation for atomic transactions and order history management.
▸Optimized frontend performance by ~35% using Redux Toolkit for global state caching and Vite for optimized bundling.
LLaMA 3.1 Fine-Tuning Pipeline
LLaMA 3.1 Fine-Tuning Pipeline
Production-grade modular framework for training and deploying domain-specific Small Language Models (SLMs).
PythonPyTorchHugging FaceQLoRA
▸Developed a QLoRA fine-tuning pipeline for 8B+ parameter models, utilizing 4-bit quantization to reduce training costs by ~60%.
▸Optimized inference for edge devices by quantizing models to INT4 GGUF format, enabling real-time CPU execution with <1GB RAM.
▸Built an OpenAI-compatible API layer to serve local models as drop-in replacements for cloud-based LLMs.
Data Capsule
Education & Achievements
Education
Academic Ledger01
Indian Institute of Information Technology, Una
B.Tech in Electronics and Communication Engineering
2022 - 2026Una, Himachal Pradesh8.90/10
02
Delhi Public School, Ranchi
Intermediate (Class 12)
2019 - 2021Ranchi, Jharkhand96.2%
03
Oxford Public School, Ranchi
High School (Class 10)
2017 - 2019Ranchi, Jharkhand97.2%
Achievements
Signal Boost1
Knight on LeetCode
Achieved 'Knight' status on LeetCode by solving 600+ problems, ranking in the top 7.9% of competitive programmers globally.
2
1st Position at Coders' FaceOff
Awarded 1st Position at Coders' FaceOff (IIIT Una, 2024), demonstrating proficiency in advanced data structures and algorithms.
3
3rd Position at Electrothon
Secured 3rd Position at Electrothon (NIT Hamirpur, 2024), developing a high-impact solution within a 48-hour sprint.
4
Hackathon Finalist
Selected as a finalist and participant in premier hackathons including HackTU 5.0 (Thapar) and HackTheHills (IIIT Una).
USER_REPORTS.txt
LIVE_FEED
REPORT_001.log
2025
FROM: Infrawave Solutions @ SmartCity Solutions
Architected a production-grade Computer Vision Parking Slot Detector now managing real-time occupancy across 30+ commercial facilities with exceptional reliability.
REPORT_002.log
2025
FROM: Founding Team @ Fixacity
Developed a fine-tuned LLM blending career guidance with empathetic support, significantly improving user engagement and automated assistance quality.
REPORT_003.log
2025
FROM: Management Team @ Zepul
Built a low-latency AI Voice Agent for virtual meetings, delivering natural interactions and optimized real-time communication performance.
REPORT_001.log
2025
FROM: Infrawave Solutions @ SmartCity Solutions
Architected a production-grade Computer Vision Parking Slot Detector now managing real-time occupancy across 30+ commercial facilities with exceptional reliability.
REPORT_002.log
2025
FROM: Founding Team @ Fixacity
Developed a fine-tuned LLM blending career guidance with empathetic support, significantly improving user engagement and automated assistance quality.
REPORT_003.log
2025
FROM: Management Team @ Zepul
Built a low-latency AI Voice Agent for virtual meetings, delivering natural interactions and optimized real-time communication performance.
START A PROJECT
Let's
Talk
Code.
I am currently available for freelance work and open to full-time opportunities.
Bangalore, Karnataka, India