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Available for freelance & remote

Mohammad
Safwan Athar.

Full-Stack Engineer & Solo Builder · Design → Build → Ship → Run

I design, build, deploy, and run complete products on my own, from the first pixel to production and the SEO that brings traffic. AI engines, open-source tooling, polished client sites; I take ideas all the way and keep them running.

Thousands
Daily users · RailTC
6+
Products shipped solo
2yr 9mo
Senior engineering
Full SDLC
Design → deploy → grow
001

Selected Work

products · open source · freelance
RailTC.in screenshotProduct
RailTC.in
Founder · Solo Developer
Live

A production-grade PNR prediction engine for Indian Railways. I reverse-engineered a custom OCR pipeline to bypass expensive third-party APIs, serving real-time predictions with automated post-journey verification.

Thousands of daily users · real-time predictions at scale
Next.jsFastAPIPostgreSQLMLOCRTechnical SEO
Visit railtc.in →
Aya ToolWall screenshotOpen Source
Aya ToolWall
Creator · Open Source
Open Source

A fail-closed security gateway for AI agent tool calls. An LLM can emit a schema-valid tool call that is still unsafe to run; ToolWall blocks the dangerous ones (destructive ops, leaked secrets, bad values, hallucinated tools) before they execute.

28 / 28 known attacks blocked · 0 false blocks · pip install toolwall
PythonLLM SecurityAI AgentsPolicy EngineMIT
Visit toolwall.aya-ai.xyz →
REZ Enterprise screenshotFreelance
REZ Enterprise
Freelance · Design + Build + SEO
Live

A bold marketing site for an authorised government electrical contractor; HT/LT line work, substations and infrastructure. I designed the UI from scratch, built it, deployed it, and optimized it for search, end to end.

Designed, built, deployed & SEO-optimized solo
Next.jsUI / UX DesignResponsiveTechnical SEO
Visit rezenterprise.in →
Mufti Shamail Nadwi screenshotFreelance
Mufti Shamail Nadwi
Freelance · Full-Stack Platform
Live

A complete platform for an Islamic scholar: articles, a Q&A system, consultation booking, a books store with checkout, and user accounts. A full-stack build from a polished UI down to production.

Articles · Q&A · consultation · store · auth
Full-StackAuthE-commerceCMSCloud
Visit muftishamail.com →
002

How I Work

one person, the whole stack

I own every layer a product needs, from the first pixel to production and the SEO that brings traffic. Design, build, deploy, run; solo, end to end, or leading a team.

01
Design & UI

Interfaces built from scratch that look and feel premium, like rezenterprise.in.

02
Frontend

React, responsive and accessible, wired straight to the APIs behind it.

03
Backend & APIs

FastAPI and Django, clean API design, data modeling, and real performance.

04
DevOps & Cloud

Docker, Kubernetes, CI/CD, and multi-cloud on AWS, GCP, and Huawei Cloud.

05
AI & Agents

LLM and RAG features, agentic workflows, and guardrails like Aya ToolWall.

06
SEO & Growth

Technical SEO that ranks products on page one and drives real organic traffic.

003

Experience

2022 → present
Jan 2026 – Present
RailTC
Founder

Founded and lead RailTC, an independent product I designed, built, and run solo, now serving thousands of daily users across India.

Dec 2023 – Present
Bottrion Systems Pvt Ltd
2 yrs 9 mos · Remote

Project lead and technical architect across multiple international platforms. I run several projects at once, end to end and largely on my own, spanning design, backend, frontend, DevOps, and AI. I own architecture, system optimization, and the full production lifecycle from infrastructure automation to high-availability release.

Senior Software Engineer · Project LeadSep 2025 – Present

Leading and managing multiple projects concurrently across the full stack: backend architecture, frontend delivery, DevOps, and AI features, while guiding associates and enforcing security-first engineering practices.

Software Development EngineerJan 2025 – Sep 2025

Spearheaded backend development as both team member and solo developer, managing the entire DevOps lifecycle plus production operations, monitoring, and troubleshooting.

Full Stack DeveloperMar 2024 – Dec 2024

Led backend for an e-commerce platform (Django REST), integrated the frontend, and deployed production on Huawei Cloud, leading a GCP-to-Huawei data migration with OBS + CDN.

Full Stack DeveloperDec 2023 – Feb 2024

Built foundational APIs for product management and authentication, collaborated on frontend integration, and set up containerized dev environments on GCP with Docker.

Stack: Django · FastAPI · Flask · PostgreSQL · MongoDB · Redis · Docker · Kubernetes · GitHub CI/CD · Nginx · Celery · Huawei Cloud · AWS · GCP

Sep 2022 – Aug 2023
Catalyst Institute of Science
Administration Assistant · Achalpur, MH

Supported institutional administration and operations while building the foundation for a full-time engineering career.

004

Technical Stack

language-agnostic
Core Languages
Python (Expert)Node.jsJavaCC++JavaScriptSQL
Web & AI
FastAPIDjangoReactNext.jsLangChainCrewAIRAGGemini / GPT-4
DevOps & Cloud
AWSGCPHuawei CloudDockerKubernetesOpenShiftJenkinsAnsibleLinux
Specialized
UI / UX DesignReverse EngineeringOCR (Tesseract)Technical SEOPentestingSystem Design

// Prioritizing architectural integrity and logic over specific syntax, adaptable to any environment.

005

Impact

01
Solo, End to End

Designed, built, deployed, and run complete products on my own, from the first pixel to production and the SEO that follows.

02
Reverse Engineering

Bypassed high-cost API dependencies for proprietary projects by engineering custom scrapers and automation scripts.

03
Organic Growth

Leveraged technical SEO to rank products on the first page of search, driving thousands of organic clicks a day to RailTC.

04
Team Mentorship

Upskilled 3+ junior developers and interns, moving them into independent feature ownership within 3 months.

007

About

Mohammad Safwan Athar

I'm a Senior Software Engineer at Bottrion Systems and a client-facing project manager. I lead client projects from end to end, usually as the sole developer, and I ship fast enough that my lead started calling me the MVP buster. On my own, I founded RailTC and built Aya ToolWall. I take products from designing the UI to writing the backend, deploying to the cloud, and handling the SEO that brings in users.

My freelance work, like rezenterprise.in and muftishamail.com, spans everything from bold marketing sites to full platforms with auth, commerce, and content. My goal is simple: ship optimized, secure, and scalable products that look great and hold up under real traffic.

Education
BCA, Vidyabharati Mahavidyalaya,
Amravati · 2020–2023 · First Division
Based in
New Delhi, India
Remote / Relocation
Certifications
Python: Primer, Alpha, Beta
Languages
English · Hindi · Urdu · Marathi