The Role
As an SDET Intern, you will develop automated tests for a mobile investing app, ensuring reliability and safety for user transactions. You'll work with mobile automation tools, smart contract testing, and maintain CI/CD processes.
Summary Generated by Built In
Mission
We are building a mobile-first passive investing app on HyperEVM. Our software handles real user funds and there is no undo button on-chain. Reliability and safety are core product features.
We do not run manual QA as a primary strategy. This role builds automated testing and quality gates that catch failures in CI before they reach users
What you will do
You will build and maintain an automated defense system for our highest-risk flows:Wallet connectionUSDC deposit and withdrawPortfolio selectionRebalance and risk guardrailsveTMAI membership gating
Stack
- Mobile automation: Maestro (YAML-based flows for mobile UI and WebViews)
- Smart contract testing: Foundry (unit tests, fuzzing, invariants)
- Web automation: Cypress (secondary coverage for the read-only web dashboard)
- CI/CD: GitHub Actions
- Core code: TypeScript (React Native) and Solidity (ERC-4626 vaults)
Requirements
Must-haves
- You are engineering-first.
- You write automation as production-quality code, not record-and-playback scripts.
Experience with at least one mobile E2E tool:
- Maestro, Detox, or Appium.
- Comfortable with CI/CD and GitHub Actions workflows.
Strong debugging habits:
- You read logs, isolate root cause, and fix determinism issues.
- Clear written communication and consistent progress updates.
Nice-to-haves
DeFi familiarity:
- ERC-20 approvals, wallet signatures, and basic transaction states (submitted, confirmed, reverted).
- Foundry experience (or strong Solidity testing instincts).
- Experience testing React Native apps with WebViews.
- Experience shipping in a fast-moving startup environment.
Interview process
- Portfolio review: We review your GitHub and look for evidence you built automation, CI, or test infrastructure that shipped.
- Take-home build: We provide a simple React Native build and ask you to produce a working Maestro flow plus a minimal CI workflow.
- Technical walkthrough: You explain your selector strategy, wait strategy, failure handling, and how you would scale coverage.
To apply
Send:
- GitHub link (or a code sample)
- A short note describing the hardest test automation problem you solved and how you approached it
Top Skills
Cypress
Foundry
Github Actions
Maestro
React Native
Solidity
Typescript
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The Company
What We Do
Token Metrics is a cryptocurrency investment research platform that’s driven by machine learning and artificial intelligence. The company was founded by Ian Balina in 2017 as he traded his way from $20,000 to more than $5 million, logging all his trades in a public-facing spreadsheet that drew more than a million unique visitors per month. Ian’s Moneyball-style approach to crypto investing now forms the basis of the Token Metrics platform, which now helps thousands of customers around the world profitably play the crypto markets.
