Faisal Affan - Backend Engineer (English)

I'm Faisal, backend engineer with more than 5 years of experience primarily working with Go Rust, Python Fast API and PHP Laravel.

I specialize in distributed system and API designs specifically for the banking and fintech system at production scale at BTPN Sharia, a regulated Islamic bank under OJK compliance I built two production systems as the sole back end engineer and the first one I contribute to Tepati projects a survey and interview app for 5,000 field officers across the remote Indonesian island.

The challenge is unreliable Internet 23% data loss rate.

I built an offline first delta sync engine sending only change not the entire payloads.

The Result is the 0% data loss, 78% bandwidth reductions, approval cycles from 5 until 7 days to under 24 hours only and the second Sitepat.

Sitepat is a customer facing mobile banking app downloaded 600,000 downloads and the challenge is integrating with legacy temenos T24 core banking system using binary ISO 8583 protocol.

So I built a bridge between registration to ISO 8583 over tcp persistent connections and the result is 320,000 monthly active users and the late payment drop from 50% just to 4% only.

The two production system banking grade compliance and I'm built with solo at the first mvp.

So Beyond the system I've built yeah there is something more objective which is testimonial from college who have worked directly with me on my LinkedIn you will find the endorsement from the engineer and manager I've worked alongside and these aren't just great work they are specific like how I handle the technical decisions, how I communicate under pressure, how I deliver a complex system.

Solo at the first mvp.

So this all on my screen ya and this is a social proof not just self promotion ya so and one more thing I'm also an open source contributor on my GitHub you will find contributions to FOSS projects not just only trivial commits but features and bug fix.

people actually use this proofs I can work in other people code base not just only my code base I think that's all my contribution yeah on my screen you can see here and I'm looking for a role where I can work on back end infrastructure and distributed system at scale with a team that value technical quality and ownership offer velocity.

So I believe great systems come from the thoughtful decision not the fastest pull request.

So I'd love to learn more about what you are building and how I can contribute and links in the description, GitHub, linked, resume, and calendly and thanks for your time 😊