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§1 General description

Backend engineer · Amsterdam

I build backend systems and the tools around them.

Fourteen years across travel, payments, logistics and subscriptions. I care about event-driven architecture, domain-driven design, and software that’s easy to operate.

§2 Characteristics

Current
Senior Backend Engineer, Polarsteps
Shipping software
14 yrs · since 2012
Companies
11 · startup → enterprise
Cities
Dhaka → Berlin → Eindhoven → Amsterdam
Domains
Travel · Payments · Logistics · Subscriptions · Lending
Roles
IC · Tech lead · Eng. manager
Writing · Talks
5 posts · 4 talks
Location
Amsterdam · CET
Profiles
GitHub · LinkedIn · Medium
NOW Shipping my dotfiles, a Nix configuration for macOS that anyone can fork.See what else I’m up to →

§3 Modules — projects

IN PROGRESSPLANNED

Tools and products I’m building, in the order they ship. Each one comes from a problem I kept solving by hand.

§4 Application notes — writing

ALL POSTS →RSS

Notes on backend architecture, developer tooling and engineering teams.

§5 Talks

Four conference talks, mostly on Elixir and functional programming.

TOPICS I’D PROPOSE NEXT

Backend architectureEvent-driven systemsDeveloper tooling

Organising a meetup or conference? hello@tawsifaqib.com

© 2026 Tawsif Aqib · Amsterdam, NLSpecifications subject to change without notice.