Social listening pipeline
One multithreaded Node.js service ingesting thousands of Facebook posts daily — modeled in DBT + PostgreSQL, surfaced as reports clients actually read.
- Node.js
- DBT
- PostgreSQL
- Data viz
Shaalan Marwan · Istanbul, Turkey
Lead Software Engineer at QAF Lab. Five years of production SaaS and large-scale pipelines — now studying AI & Data Science, moving toward machine learning engineering.
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I grew up in Mosul, where I learned that good software isn't about clever code — it's about people trusting the thing you built. That belief turned into five shipped SaaS products, a developer community of 200+, and a habit of teaching everything I learn.
Today I lead engineering at QAF Lab, building data-intensive systems for clients across Canada and the UK — and I'm an MSc candidate in Artificial Intelligence & Data Science in Istanbul. Same engineer, bigger questions.
2016 – 2020
Started engineering in a city rebuilding itself. Wrote my first production code part-time at QAF Lab while still studying.
2019 – 2022
Built social media analysis tooling at QAF Lab and a pharmacy platform at Falaq serving 100+ pharmacies — learning that software only counts when it survives real users.
2021
Trained two full-stack bootcamp cohorts at FikraSpace. 65% of graduates placed into jobs through mentorship and employer outreach.
2023
Became Lead Software Engineer at QAF Lab — scaled the team from 2 to 6. Founded Tech Hub Community, Mosul's first developer community, now 200+ members strong.
Feb 2026 — Now
Studying machine learning, deep learning, and big data alongside full-time engineering. The next chapter: machine learning engineering.
Client products stay behind the curtain — the engineering is what I can show.
One multithreaded Node.js service ingesting thousands of Facebook posts daily — modeled in DBT + PostgreSQL, surfaced as reports clients actually read.
Event management, social listening, radio management with geo-analytics — shipped end-to-end for enterprise clients across Canada and the UK.
A B2B marketplace connecting drugstores and pharmacies — data-entry time cut by 80% — paired with an Electron POS replacing paper.
May 2023 — Present
QAF Lab
Jan 2021 — Jun 2022
Falaq
Mar 2021 — Dec 2021
FikraSpace
Nov 2019 — Dec 2022
QAF Lab
Sessions, cohorts, and the people I build with.
Get in touch