QA Engineer (Manual, Mobile) $$$$

LITSLINK is looking for a QA Engineer (Manual) to join a long-term project focused on building a privacy-first secure mobile messenger.

You will work on a complex product with a strong focus on security, real-time communication, and multi-device consistency, where QA is an integral part of the development process.

 

Project

  • Secure mobile messenger (iOS & Android)
  • End-to-end encryption by default
  • Multi-device support
  • Real-time messaging and calls
  • On-device AI features

 

Format

  • Remote
  • Part-time (≈20h/week)
  • Long-term

 

Responsibilities

  • Perform manual testing of mobile applications (iOS & Android)
  • Validate critical flows: authentication, messaging, calls, multi-device sync
  • Test real-time features under different network conditions
  • Identify edge cases and нестандартні сценарії
  • Perform API testing and basic network inspection
  • Participate in regression testing before releases
  • Collaborate with QA Lead and engineers

 

Requirements

  • 3+ years of experience in mobile QA (iOS & Android)
  • Experience testing complex mobile applications
  • Experience with API testing (REST, Postman)
  • Experience with network tools (Charles / proxy)
  • Experience testing real-time features (chat / sync / notifications)
  • Strong attention to detail and analytical thinking
  • Upper-Intermediate+ English

 

Nice to have

  • Experience with WebRTC / VoIP testing
  • Understanding of security / encryption basics
  • Experience with messaging / fintech / security products
  • Experience with real devices testing
  • Basic understanding of test automation

 

Why join

  • Work on a security-focused product
  • Complex real-time system, not just UI testing
  • Opportunity to grow in security and mobile domain
  • Flexible part-time format

Required skills experience

Mobile apps testing 3 years
API Testing 2 years
Network tools 1 year

Required domain experience

SaaS 3 years

Required languages

English B2 - Upper Intermediate
Ukrainian Native
WebRTC, security, encryption basics, network debugging, multi-device, sync, real-time apps
Published 27 March
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40 applications
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