Available for freelance

Jafsal
M A.

Senior Software Engineer & Technical Lead — 7+ years building Python backend systems, large-scale web scrapers, and production data pipelines.

📍 Kerala, India  ·  Remote  ·  jafsal.dev
100+
Production
services built
400K
Daily executions
processed
7+
Years of
engineering
4
Engineers
led & mentored
01

Core skills

Languages
PythonGolangJavaC++SQLBash
Scraping & Automation
ScrapyPlaywrightSeleniumAppiumBeautifulSoupScrapyd
Data & Backend
PandasNumPyElasticsearchCassandraRabbitMQFirebase
Infrastructure & DevOps
DockerLinuxGitLab CIJenkinsAzure DevOpsAzure IoT
02

Experience

2024 — Present
PST.AG
Weimar, Germany · Remote
Python Developer / Team Lead — Data Engineering & Web Scraping
Architected a production ecosystem of 100+ active services processing 400K+ daily executions with full fault tolerance and reproducibility
Designed validation logic to verify execution correctness against expected scenarios, enabling deterministic evaluation
Implemented protocol-driven ingestion and verification logic across heterogeneous, frequently changing systems
Deployed and monitored containerized services via Docker, Scrapyd, and Linux infrastructure with CI/CD integration
Led and mentored a team of 4 engineers, conducting code reviews and driving best practices
2021 — 2024
Shopalyst Technologies
Trivandrum, Kerala
Software Engineer II — Data Operations & Engineering
Built scalable Python and Golang backend systems for high-volume data ingestion and processing
Reverse-engineered SSL-pinned mobile applications to identify internal APIs and integrate them into structured pipelines
Implemented distributed storage using Elasticsearch, Cassandra, and RabbitMQ
Automated operational workflows with Bash, Cron, and Jenkins, significantly reducing manual failures
2020 — 2021
Tata Consultancy Services
Kochi, Kerala
IoT Edge Developer
Developed C++ modular services for Azure IoT Edge focused on reliability and real-time processing
Built Dockerized services with automated builds using Azure DevOps and Git in a protocol-heavy regulated environment
2018 — 2020
Tata Consultancy Services
Chennai, Tamil Nadu
System Engineer
Developed Python ETL crawlers (Scrapy, BeautifulSoup) for e-commerce data, supporting downstream ML workflows
Focused on data cleaning, feature extraction, and quality assurance at scale
03

Projects

Full-stack · Live
The Plato
Full-stack food ordering web application built with vibe coding workflows using Firebase Studio. End-to-end: UI, backend logic, data persistence, and deployment.
dev.theplato.in →
Portfolio · Live
Personal Website
Personal portfolio at jafsal.dev — showcasing projects and writing. Built with focus on performance and clean design.
jafsal.dev →
Client · Live
TOG Connect
Dynamic web application demonstrating end-to-end client delivery with responsive design and rapid iteration.
togconnect.in →
IoT · Published
Structural Health Monitor
Remote building health monitoring system using ESP32, Raspberry Pi, Adafruit VL6180X, IP Camera, Telegram Bot, and Firebase. Published in IJRASET 2018.
IJRASET Publication · 2018
Client · Live
Chef Lounge
Restaurant web presence built for speed and mobile usability via rapid prototyping workflow.
cheflounge.in →
Production system
100+ Service Scraping Ecosystem
Architected and scaled a scraping infrastructure to 100+ active projects, 400K pages/day — fault-tolerant, monitored, CI/CD-integrated. Directly applicable to LLM dataset curation.
PST.AG · 2024–Present
Let's work
together.

Based in Kerala, India · Available globally · Open to freelance & remote roles

✉ jfzlma@gmail.com in /jfzlma ⌥ github/jfzlma ✆ +91 96330 62855 🌐 jafsal.dev