Senior QA Engineer (Financial Apps)

United States Digital Space LLC; Berlin; Vor Ort; EUR 60.000 - 75.000; Vollzeit

Zusammenfassung

United States Digital Space LLC in Berlin seeks a QA engineer to own quality across web3 and financial flows, combining manual testing with automation. You will analyze specs, hunt edge cases, and advocate improvements while embracing AI tools to boost coverage.

Expect to debug with Datadog and Sentry, and partner with backend and frontend teams to enhance automation in a fast-paced crypto environment.

Qualifikationen

• 3+ years in Manual QA with hands-on automation across the full stack.
• Solid grasp of blockchain fundamentals and DeFi concepts.
• AI-native approach; use AI tools to speed up testing while maintaining depth.

Aufgaben

• Own quality end-to-end across complex financial and Web3 flows.
• Design and execute thorough manual test plans with automation where possible.
• Leverage AI to expand coverage and accelerate delivery without sacrificing depth.
• Dive into logs and monitoring tools to identify root causes in backend and frontend.
• Collaborate with engineers to improve systems and automation across APIs and UI.

Kenntnisse

Manual QA

Exploratory testing

AI-assisted testing

Data-driven debugging

Tools

TypeScript

Datadog

Sentry

Jobbeschreibung

About the company

the company is the institutional standard for digital asset security and settlement. We enable banks, fintechs, and exchanges—like BNY Mellon, Revolut, and ANZ—to securely navigate the blockchain economy. Our platform and network provide the simplest and most secure way for companies to work with digital assets.

The Mission: Quality

The Financial Apps unit builds the critical infrastructure that connects institutions to the digital asset economy. Our products cover everything from staking and yield to on-ramps, exchange integrations, and Web3 connectivity (e.g. WalletConnect).

In this role, you'll manually test all flows that need validation, and contribute to building out our automation the rest of the time. We need someone who treats quality as a holistic product challenge, takes pride in rigorous manual testing, and is eager to help grow our automation—using AI to move faster at every stage.

What You'll Do

• Holistic Quality Ownership: You own the quality of the product end-to-end. You don't just test against a spec; you analyze the spec, find the logical gaps, and suggest improvements to ensure a better final product.
• Hands-On Manual QA: You design and execute thorough manual test plans across complex financial and Web3 flows.
• AI-Powered Velocity: You leverage AI agents (e.g., Claude Code) to accelerate your workflow, expand coverage, and ship faster without sacrificing depth.
• Deep-Dive Analysis: You are comfortable digging into logs and monitoring tools (Datadog/Sentry) to understand why something broke. You aren't afraid to get your hands dirty in the backend to find the root cause.
• Contribute to Automation: When you're not running manual flows, you help build and maintain automation across backend APIs and frontend interfaces in a fast-paced environment.
• Product Partnership: You don't see yourself as "just a tester." You are an engineer with a product mindset who actively works to improve the systems you are checking.

Who You Are

You take real pride in finding what others miss — exploratory testing and edge-case hunting genuinely excite you, and you'd rather break something today than let a user break it tomorrow. You do both automation and manual testing, and treat both as core parts of the role.

• 3+ years in Manual QAwith hands-on automation experience across the full stack (TypeScript preferred).
• Solid grasp of blockchain fundamentals, the transaction lifecycle, and DeFi logic like staking and bridging.
• AI-native - you already use AI tools daily to move faster and cut through complex errors.
• Fast learner - new domains don't slow you down; you keep pace in an industry that moves at the speed of crypto.
• Data-driven debugger - when something breaks, logs are your first move, not your last resort.

the company' mission is to enable every business to easily and securely access digital assets and cryptocurrencies.

In order to do that, we strongly believeour workforce should be as diverse as our clients, and this is why weembrace diversity and inclusion in all its forms.

Please see our candidate privacy policy here.