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kahroba dev studio
FA

Capabilities

What we have shipped, not what we could theoretically build.

01

Mobile Product Engineering

Native Android and cross-platform Flutter, shipped to Cafe Bazaar, Myket and Google Play. Multi-flavor builds, signed release automation, and clean-architecture codebases that survive multi-year maintenance windows.

  • Kotlin · Coroutines · Compose · Room
  • Flutter · Dart · Riverpod / BLoC
  • Fastlane, ABI splits, signing rotation
  • Multi-store distribution (Bazaar · Myket · Play)
02

Backend Systems & APIs

Service-oriented backends behind live consumer traffic. Typed contracts, background workers, queue-driven pipelines, and observability baked in from day one.

  • Node.js · NestJS · TypeScript
  • MySQL · Redis · BullMQ · Prisma
  • REST & WebSocket APIs · rate-limited · contract-tested
  • Persian text pipelines, IAP verification, subscription lifecycles
03

Cloud Infrastructure & DevOps

Infrastructure treated as product. Reproducible environments, gradual rollouts, and the boring reliability work that only pays off in year three.

  • ArvanCloud · S3-compatible object storage · CDN
  • Docker Compose · reproducible dev/staging/prod
  • GitHub Actions CI/CD · signed release pipelines
  • Log aggregation · metrics · uptime & error budgets
04

AI & LLM Product Integration

Persian-first assistants and generative features on top of frontier models. Token accounting, model routing, safety layers, and a monetization model that survives a viral spike.

  • Multi-model routing: GPT · Claude · Gemini · DeepSeek
  • Prompt engineering as a code discipline
  • Token budgets · per-user cost caps · streaming
  • Persian NLP tuning · moderation · retrieval pipelines
05

UI Design & User Experience

Design systems built for the Persian and Latin scripts together. Typography, motion and information density decided once and defended everywhere.

  • Design tokens · type scale · motion system
  • Persian typographic care: RTL, mixed-script numerals, line height
  • Figma-first workflow · component libraries · redlines
  • Accessibility to WCAG 2.1 AA · keyboard & screen-reader passes
06

Product Operations & Reliability

The unglamorous half that keeps apps alive for years. Every product is operated by the same people who built it.

  • Store relationships · ASO · review response cadence
  • Crash triage · staged rollouts · rollback drills
  • On-call rotations · incident write-ups
  • Yearly OS-target uplifts · dependency hygiene