Freelance QA Tester (Mobile Apps)

Freelance QA Tester (Mobile Apps)

Contract:

Commitment:

Compensation:

How to Apply

form,

About the Company

Cerina is a digital mental health company dedicated to improving access to high-quality psychological care through innovative technology. Working in collaboration with both public and private healthcare systems, Cerina develops and delivers clinically validated digital interventions. Its portfolio includes a medical-grade cognitive behavioural therapy (CBT) program for anxiety, which has been successfully implemented across the Cornwall region.

About the Role

iOS and Android

What You’ll Do

• Execute

  test plans

  and

  test cases

  across iOS and Android (phone & tablet), including fresh installs/updates.
• Perform

  functional

  ,

  regression

  ,

  smoke

  ,

  UI/UX

  ,

  exploratory

  , and

  compatibility

  testing across devices, OS versions, and network conditions.
• Validate

  push notifications

  ,

  permissions

  ,

  deep links

  ,

  in-app purchases/subscriptions

  , and

  analytics events

  .
• Run

  API checks

  and data validations using proxy tools (e.g., Charles) where applicable.
• Log defects with

  clear repro steps

  , expected vs. actual results,

  screenshots/video

  , and relevant logs.
• Re-test fixes, manage test runs, and update case status in our test management tool.
• Raise risks, edge cases, and usability issues early; propose pragmatic retest scopes.
• Contribute to and maintain

  test suites

  ,

  bug taxonomy

  , and a lightweight

  device/OS coverage matrix

  .

Deliverables

• Completed test runs with pass/fail results and notes.
• Defect reports (priority, environment, build, steps, evidence, suspected scope).
• Sanity checklist for each build (install, login, core flows, settings, notifications).
• Optional: brief quality report per cycle (key risks, flake, hotspots, recommendations).

Your Toolkit (nice if you’ve used these)

• Test management:

  TestRail (or similar)

• Issue tracking:

  Jira/Linear/GitHub/ClickUp

• Device clouds:

  BrowserStack/Device Farm (plus your own devices)

• Diagnostics:

  Charles Proxy, Android logcat, Xcode devices & logs, Crashlytics

• Automation (bonus):

  XCUITest, Espresso, Appium for smoke/regression packs

Requirements

• 2+ years in

  mobile QA

  (consumer apps preferred).
• Hands-on testing on

  both iOS and Android

  with multiple OS versions.
• Proven defect reporting skills (repros, isolation, impact, and priority).
• Comfortable testing

  offline/poor network

  ,

  localization

  ,

  dark mode

  , and

  accessibility

  basics (VoiceOver/TalkBack, dynamic type).
• Strong communication, reliable availability, and async collaboration skills.
• Able to sign an

  NDA

  and follow

  data-handling

  /security guidelines.

Nice to Have

• Experience 
• with

  subscriptions/IAP

  ,

  authentication

  (SSO, OAuth),

  deep linking

  , or

  media uploads/streaming

  .
• Basic SQL or API testing (Postman).
• Light automation experience.

Test Coverage Expectations (examples)

• Platforms:

  iOS 16–18, Android 12–14 (older where usage justifies).

• Devices:

  Mix of flagship + mid-range; at least one small & one large screen per OS.

• Scenarios:

  cold/warm start, upgrade from prior version, reinstall, background/foreground, limited storage, varied network (3G/LTE/5G, airplane, captive portals).

• Compliance & Accessibility:

  permissions flows, tracking prompts, a11y passes on key screens.

Contract & Logistics

• Remote

  , global; must align at least

  2–3 hours

  with [Team Time Zone].
• Paid hourly or per cycle; 
• Must use secure devices (no rooted/jailbroken) and follow our

  GDPR/PII

  policy.