A production-grade PNR prediction engine for Indian Railways. I reverse-engineered a custom OCR extraction pipeline to bypass expensive third-party APIs, serving real-time predictions with automated post-journey verification against actual chart outcomes.
Mohammad
Safwan Athar.
Senior Software Engineer & Project Lead · Full-Stack · DevOps · AI
I lead and ship products end to end, architecting backends, building frontends, automating cloud infrastructure, and deploying agentic AI. I run multiple projects at once and adapt to whatever the work demands. Language-agnostic by philosophy, engineering-first by practice.
Products
built, shipped & owned by meA 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 is the gate that blocks the dangerous ones (destructive ops, leaked secrets, out-of-range values, hallucinated tools) before they ever execute.
How I Work
one person, the whole stackI own every layer a product needs to ship. Hand me a problem and I take it from architecture to production, across the whole stack, on my own or leading a team.
Responsive, accessible interfaces in React, wired straight to the APIs behind them.
FastAPI and Django services, clean API design, data modeling, and real performance.
Docker, Kubernetes, CI/CD, and multi-cloud on AWS, GCP, and Huawei Cloud.
LLM and RAG features, agentic workflows, and guardrails like Aya ToolWall.
Audits, penetration testing, and hardening built in from the first commit.
Running several projects at once and mentoring developers into full ownership.
Experience
2022 → presentFounded and lead RailTC, an independent product I built and run solo, now serving thousands of daily users across India.
Project lead and technical architect across multiple international platforms. I run several projects at once, end to end and largely on my own, spanning backend, frontend, DevOps, and AI. I own architecture, system optimization, and the full production lifecycle from infrastructure automation to high-availability release.
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.
Spearheaded backend development as both team member and solo developer, managing the entire DevOps lifecycle plus production operations, monitoring, and troubleshooting.
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.
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
Supported institutional administration and operations while building the foundation for a full-time engineering career.
Technical Stack
language-agnostic// Prioritizing architectural integrity and logic over specific syntax, adaptable to any environment.
Impact
Bypassed high-cost API dependencies for proprietary projects by engineering custom scrapers and automation scripts.
Upskilled 3+ junior developers and interns, moving them into independent feature ownership within 3 months.
Leveraged technical SEO to rank products on the first page of search, driving thousands of organic clicks a day to RailTC.
Conducted periodic security audits and penetration testing to harden API endpoints against common vulnerabilities.
Writing
notes on linux, cloud & devopsAbout

I'm a Senior Software Engineer at Bottrion Systems, founder of RailTC, and creator of Aya ToolWall, an open-source security gateway for AI agents. I run multiple projects at once across backend, frontend, DevOps, and AI, owning architecture and end-to-end delivery.
I manage the complete DevOps lifecycle: infrastructure automation, CI/CD pipelines, and high-availability production across Huawei Cloud, GCP, and AWS. My goal is simple: ship optimized, secure, and scalable systems that hold up under real traffic.
Amravati · 2020–2023 · First Division
Remote / Relocation
// Get in touch