H
Hafshy Yazid Albisthami
From Indonesia 11:32 PM (GMT+07:00)
$30/hr or $60,000/yr

Active 4 hours ago


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iOS Engineer · Applied AI · Full-Stack

iOS Developer
Available for hire
Years of experience
4+ years
Experience level
Mid-level
Available for
Full-time, Part-time, Contract, Freelance
Available from
01 Dec 2026

iOS engineer with 4+ years of shipping production software, now building applied AI and full-stack systems end to end.

What I've done

  • Nearly 3 years of production iOS on Klik Indomaret, a national retail app with 24k+ App Store ratings: search, grocery mode, stock availability, promotions and payment promos, with zero production crashes in my features. Migrated login and session data from React Native to native iOS on the live user base with no forced re-login.
  • Helped raise app-wide unit-test coverage from 0% to 49%, mostly through Swift Testing suites I directed and reviewed.
  • Built an internal RAG service (Go, Qdrant, hybrid BM25 + vector retrieval) with a CI-gated retrieval eval (MRR 0.812, recall@10 1.0, p95 171 ms), plus a crash-diagnosis pipeline that groups crashes and drafts AI fix suggestions.
  • Acting PM and tech lead for an internal QA platform: wrote the spec and API contracts that 6+ engineers on four stacks build from, co-built the Go + PostgreSQL backend and shipped React/TypeScript desktop features.
  • Co-founded WonderJack, an iPad learning game for dyslexic children with on-device card recognition (Vision + Create ML). Silver, ASEAN Digital Awards 2025.

What sets me apart: iOS depth combined with real applied-AI and backend work. I ship through a spec-driven, test-gated agentic workflow (Claude Code, Codex) and maintain Hafness, an open-source harness for AI coding agents.

Looking for: remote iOS, mobile + AI, or applied AI / forward-deployed roles. Based in Jakarta (UTC+7), open to relocation.

Employment History

iOS Developer at EDTS (Indomaret Group) Current 2024 - Now
- Shipped production iOS features for Klik Indomaret (24k+ App Store ratings) in a 15–20 person squad: search, grocery mode, stock availability, promotions, coupons and payment promos, with zero production crashes in my features. - Migrated login and session data from React Native to native iOS on the live user base with no forced re-login. - Helped raise app-wide unit-test coverage from 0% to 49% with Swift Testing suites I directed and reviewed. - Built an internal RAG service (Go, Qdrant, Redis, Ollama) with a CI-gated retrieval eval: MRR 0.812, recall@10 1.0, p95 171 ms. - Built a self-hosted crash-diagnosis pipeline (iOS SDK → Go service → weekly digest with AI fix suggestions). - Acting PM and tech lead for an internal QA testing platform: wrote the spec and API contracts for 6+ engineers on four stacks; co-built the Go + PostgreSQL backend and shipped React/TypeScript (Tauri) desktop features. - Rebuilt Desklab (200+ users) in SwiftUI and built a location-based ARKit/RealityKit game for eMart.
Co-Founder & iOS Developer at WonderJack Current 2022 - Now
iPad learning game for dyslexic children aged 6–9, played with physical cards. - Built on-device card recognition (AVFoundation → Vision → Create ML), tuned for real classrooms. - Took it from academy project to incubated startup: strategy, launch and business model; ~30% improvement in executive-functioning skills in a 3-week school pilot. - Silver, ASEAN Digital Awards 2025 · 2nd, IdenTIK 2023 · Top 5 of 45+, Apple Developer Academy Catalyst.
iOS Developer at Apple Developer Academy @ UC 2022 - 2022
- Shipped 5 iOS apps in 10 months with developer and designer teams (Challenge-Based Learning), including WonderJack.
Mobile Developer (Flutter) at Binawan Group 2021 - 2021
- Built Jobshub, a job-seeker app, with Flutter/Dart, BLoC and REST APIs.

Education

App Development with Swift – Associate (certification) at Apple 2023 - 2023
Backend Engineer with Golang (certification) at Alterra Academy 2023 - 2023
B.S. Computer Science at Institut Teknologi Bandung (ITB) 2018 - 2023