Shipping now · Open to select collaborations
I architect systems, then I ship them.
I'm Mustafa Nevfel, a founder and software architect in Izmir, Türkiye. I build AI-native software end to end, from the first architecture sketch to production, and I still write production code every day.
Production systems since 2012 for startups, R&D labs and remote teams in California: a real-time drone platform, IoT monitoring, accounting and e-invoicing SaaS, and AI-native software.
- Shipping since
- 2012
- Works
- Remote, across time zones
- Based in
- Izmir, Türkiye
01 — Now
Now
What I'm building and exploring this month.
- BuildingAI-native software, end to end: architecture, backend, apps and the operations behind them.
- Working withAI agents as part of the daily engineering process, with written briefs, review gates and narrow tools.
- ExploringOrchestrating several agents on one build: how to split the work, and where a human check belongs.
- WritingNotes on what holds up and what breaks when agents ship real software.
Updated October 2026More on what I'm doing now
02 — Notes
Notes
Engineering notes on architecture, real-time systems, AI agents and shipping.
An invoice is a snapshot, not a calculation
Why recomputing invoice totals from current rules breaks, and how to freeze integer minor-unit amounts, rule versions and document numbers in PostgreSQL.
Design the reconnect first: sequence numbers, replay and snapshots
Real-time bugs live in the seconds after a connection comes back. A resume protocol built on sequence numbers, idempotent replay and snapshots.
Run AI agents like queue workers: briefs, budgets and stop reasons
How I run AI coding agents like queue workers: written briefs, narrow tools, hard budgets, idempotent writes, typed stop reasons and review gates.
03 — Work
Selected work
Systems I have built since 2015, described by what they do. Product and client names stay confidential.
- 012023 — 2026
Autonomous drone platform
Software architect and full-stack developer
Owned the stack end to end: web, mobile, cloud, and the real-time layer that keeps vehicles, cloud and apps in sync.
- 022025
UI bug-reporting extension
Full-stack developer, MVP build
A cloud-backed browser extension for reporting UI bugs precisely, paired with structured task management.
- 032022
Career-matching platform
End-to-end system design
A two-sided matching engine: rich tagging on both sides, compared algorithmically to connect candidates and companies, first built around the German market.
- 042019 — 2021
Cloud pre-accounting platform
Software architect, then product manager
A cloud pre-accounting suite: current accounts, e-invoicing and automated business-management modules.
- 052019
Energy-tracking IoT system
IoT and cloud architecture
Remote monitoring of electricity and water use, ingesting real-time sensor data from many devices for analysis and savings.
- 062015 — 2016
Social scheduling and automation
Full-stack developer
A tool for planning, scheduling and automating posts across social platforms.
- 072015
E-commerce infrastructure
Platform developer
A commerce platform with centralized and decentralized C2C and B2B interaction built in as core modules.
04 — Experience
Track record
From developer to architect to founder, since 2012.
- FounderAI-native software, end to endRemote2026 — now
- Astral Technology CorpSoftware Architect, then DeveloperRemote · California, US2023 — 2026
- DesignQAFull-Stack DeveloperRemote · California, US2025
- C.E.O. BeeTechnical LeadRemote · Türkiye2022 — 2024
- HesapmanSoftware Architect, then Product ManagerIzmir & Aydın, Türkiye2019 — 2021
- Limitra R&DFull-Stack Developer, then Project ManagerTürkiye2015 — 2022
- Adnan Menderes UniversitySoftware DeveloperAydın, Türkiye2016 — 2019
- LimodiSoftware DeveloperAydın, Türkiye2015 — 2016
- K. Startup & EDUSoftware DeveloperIzmir & Istanbul, Türkiye2012 — 2015
05 — About
From other people's systems to my own
The same discipline, now applied to software I own end to end.
I started with practical software: automation scripts, internal tools and sites that had to remove real operational pain, not just look good.
Since 2012 I have moved from developer to full-stack engineer, architect, tech lead and founder, across startups, R&D labs and remote teams in California. The thread through all of it: take something ambitious from a blank page to production, and keep it standing as traffic and complexity grow.
Today I build AI-native software end to end. AI agents are part of my daily engineering process, next to the code I still write myself: they draft; I design, review and own what ships.
$ whoami mnevfel $ cat role.txt founder + software architect $ cat now.txt AI-native software, end to end agents draft · I design, review, ship $ echo "build systems that hold" build systems that hold
06 — Approach
How I build
Four rules that have held up in production since 2012.
- 01
Boundaries before features
Decide where the seams go before the first screen exists. Features are cheap to move; boundaries are not.
- 02
The smallest complete thing
Every endpoint, setting and dependency is a promise to maintain. Ship the smallest version that is whole.
- 03
Agents draft, I decide
I work with AI agents every day. The brief, the architecture, the review and the release decision stay with me, because accountability can't be delegated.
- 04
Observable before done
Metrics, logs and a rollback path ship with the feature. If I can't see it in production, it isn't finished.