Tech Lead QA

We're a product team building a non-custodial crypto wallet (iOS/Android), a crypto card, and a growing line of investing products. We ship fast: multiple releases per week across mobile and backend, and quality is non-negotiable: our users trust us with their assets.

We're looking for a Senior / Tech Lead QA to set the technical bar for the QA function, mentor a Middle QA engineer, and partner with developers to make automated test coverage genuinely effective. This is a hands-on technical leadership role, no people management, no 1:1s or performance reviews, but real influence on how quality is built and measured across the product.

Key responsibilities

• Own the quality of mobile app (iOS/Android), backend services, and internal back-office tools releases.
• Test new features with complex crypto and fintech logic, including high-stakes flows (transactions, swaps, asset custody, KYC).
• Drive QA-developer collaboration on automated testing: write detailed test cases, review and accept actual coverage, and incorporate the resulting test suite into daily QA work.
• Establish and own QA standards and metrics: test case templates, checklists, bug reporting standards, defect rate, escape rate, CFR/LT, and build reporting for stakeholders.
• Lead production stability efforts: monitor logs and metrics (Sentry, Firebase, Grafana), drive incident response, run post-mortems, and surface root causes.
• Mentor the Middle QA engineer and contribute to raising QA maturity across the team.
• Shape QA strategy and influence product quality with the Team Lead, developers, product managers, and designers.

Must-have

Hard skills & experience

• 7+ years of QA experience, including at least 3 years of testing mobile products.
• Background in fintech or crypto: you understand the stakes, the regulatory context, and the user expectations of money-movement products.
• User-level experience with crypto wallets and a working understanding of blockchain mechanics: transactions and fees, seed phrases, derivation paths, common token standards (ERC-20, BEP-20, etc.), swaps, and bridges. Required even for candidates coming from a pure fintech background.
• Excellent manual testing skills across mobile and API (Postman, Charles, or similar).
• Solid understanding of performance and load testing principles, with the ability to design load scenarios; hands-on experience is a plus.
• Hands-on experience reviewing automated tests and validating coverage in a collaborative model: writing detailed test cases, ensuring the developer's implementation actually covers the specified scenarios, and using the resulting test suite in daily QA work.
• Experience working with QA metrics (defect rate, escape rate, test coverage, CFR/LT) and building QA reporting for stakeholders.
• Hands-on experience with logs and monitoring tools (Sentry, Firebase, Grafana).

Soft skills

• Proven mentoring experience: mentored 1-2 QA engineers over 6 months, plus hands-on involvement in establishing or improving QA processes within the team.
• Proactive and responsible - able to influence, communicate, and argue constructively across product, engineering, and design.
• English language proficiency: Upper-Intermediate or higher.

Nice-to-have

• Experience with security testing, especially for crypto products (key management, signing, sensitive flows).
• Hands-on experience with load testing tools (k6, JMeter, Locust, or similar).
• Experience with Jest, Detox, or other JS-based testing frameworks.
• Understanding of QA management methodologies and metric design beyond CFR/LT/defect rate.
• Experience with KYC/AML systems.

What we offer

• Work fully remote as part of an agile, international team shaping the future of finance.
• Competitive salary range determined by individual experience and contribution.
• Career progression with opportunities to grow into senior technical, management, or cross‑functional roles.
• Impact & ownership: Work on mission‑critical reporting where accuracy, transparency, and compliance are essential.
• Collaborative culture: Join a transparent environment that values open dialogue, experimentation, and measurable impact.

Apply if you live in the product, automate what matters, and manual-test what machines miss.