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Mobile Localization Engineer
Mobile Localization Engineer

Mobile Localization Engineer at Zan - Zari Group · Remote only · 2 - 6 years · ₹7L - ₹10L / yr · Bootstrapped · Remote only · Posted 17 Sep 2026

Zan - Zari Group's logo

Mobile Localization Engineer

Zarihoun Traore's profile picture
Posted by Zarihoun Traore
2 - 6 yrs
₹7L - ₹10L / yr
Remote only
Skills
skill iconReact Native
expo
TypeScript
Supabase
i18n


Shalem is a React Native/Expo app (Supabase backend, Anthropic Claude for content generation) currently shipping English-only. Story content is being translated separately; this role owns making the app itself function correctly in additional languages — UI, content delivery, AI-generated text, and audio.


What you'll actually be doing


  • Extract ~150 screens/components' hardcoded English strings into a proper i18n catalog (react-i18next or similar) and build a working language switcher (the current Settings → Language screen is a non-functional stub)
  • Wire the existing but unused translations JSON field on the stories table into every place that serves story content (match-stories, create-sharing, deliver-path-day Supabase edge functions)
  • Add a stored user-language preference and thread it into the Claude prompts that generate reflections, bridge text, and Path day content, so AI output responds in the user's language
  • Evaluate and implement a strategy for semantic story matching across languages (currently English-only OpenAI embeddings) — either per-language embeddings or a hybrid English-match/localized-display approach
  • Coordinate per-language ElevenLabs audio generation for the app's 4 voices and QA the output
  • Localize push notification, email, and in-app subscription/cancel-flow copy
  • Test end-to-end in each target language before rollout


Required skills

  • React Native / Expo — strong, hands-on (this is not optional; most of the work is here)
  • TypeScript across a real codebase, not toy projects
  • Supabase (Postgres, RLS, Edge Functions in Deno/TypeScript)
  • Experience shipping i18n in a mobile app — string extraction, locale switching, RTL/formatting edge cases
  • Comfortable working with LLM APIs (Anthropic Claude) — prompt structure, not model training
  • Git workflow discipline; ability to work from a spec without heavy hand-holding


Nice to have


  • Experience with OpenAI embeddings / vector search (pgvector)
  • ElevenLabs or other TTS API integration
  • RevenueCat
  • Hebrew or other RTL language familiarity (bonus given the app's content domain)


Application process


Candidates who pass the initial interview will be asked to complete a take-home technical assignment before an offer is made:

  • A small sample React Native/Expo repo with ~10 screens, requiring you to: wire up i18n, extract hardcoded strings into an English + Spanish catalog, build a working language switcher, and connect it to a Supabase field storing translated content.
  • The deliverable must run on a physical device or a real device build (EAS dev build / expo run:ios / expo run:android) — an Expo Go simulator screenshot or recording will not be accepted. Submit a screen recording of the language switch working on that build, plus a PR with your code.
  • Expected time: 3–5 hours.
  • This assignment is unpaid and is the final step before an offer decision.



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Shubham Vishwakarma

Full Stack Developer - Averlon
I had an amazing experience. It was a delight getting interviewed via Cutshort. The entire end to end process was amazing. I would like to mention Reshika, she was just amazing wrt guiding me through the process. Thank you team.
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About Zan - Zari Group

Founded :
2025
Type :
Services
Size :
0-20
Stage :
Bootstrapped

About

N/A

Company social profiles

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Shubham Vishwakarma

Full Stack Developer - Averlon
I had an amazing experience. It was a delight getting interviewed via Cutshort. The entire end to end process was amazing. I would like to mention Reshika, she was just amazing wrt guiding me through the process. Thank you team.
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