Senior / Staff SDET (Software Development Engineer in Test)

The role

Senior and Staff SDETs will design and maintain test automation frameworks for APIs, backend services, web, mobile UI, and blockchain components. They will drive quality strategy, influence system design for testability, and build CI/CD-integrated test pipelines.

What you will do

• Design, build, and maintain test automation frameworks and suites
• Define and drive the quality strategy for product teams
• Partner with developers, DevOps, and product managers to influence system design
• Analyze test results, production incidents, and system behavior
• Build and maintain CI/CD-integrated test pipelines
• Leverage AI-assisted development tools
• Contribute to performance testing, security validation, and observability practices
• Mentor other engineers on testing practices and automation design
• Set technical direction for quality engineering across multiple teams (Staff level)
• Drive cross-team alignment on testing standards and tooling (Staff level)

Required qualifications

• 8+ years of experience in quality engineering or software development in test
• Strong programming skills in Python (primary) or similar (JavaScript, Java, Go)
• Proven experience designing and maintaining automation frameworks (e.g., Pytest, Robot Framework, Selenium, Playwright, Postman/Newman)
• Deep understanding of API testing, microservices architectures, and distributed systems
• Experience with Git, GitHub workflows, CI/CD tools (GitHub Actions, Jenkins, CircleCI), and issue tracking (JIRA)
• Strong debugging and analytical skills with logs, metrics, and traces (Datadog, Grafana, Prometheus)
• Experience working in Agile environments
• Clear, proactive communication
• Experience using AI-assisted development tools

Nice to have

• Experience in financial services, fintech, or digital assets / crypto
• Familiarity with blockchain APIs, wallets, smart contracts, or on-chain data
• Experience with Web3 testing tools (Hardhat, Brownie, Foundry)
• Familiarity with Docker, Kubernetes, and cloud platforms (AWS, GCP, or Azure)
• Knowledge of contract testing (Pact), test data management, or service virtualization
• Performance or security testing experience (Locust, k6, OWASP)
• Track record of mentoring engineers and raising team capabilities
• Experience building, testing, or working with AI agents and agentic workflows

Benefits

• Competitive base salary and discretionary bonus
• Company-paid health and protective benefits for employees and their eligible dependents
• Free virtual coaching and counseling sessions
• Opportunities to learn about the Crypto industry
• Employee Resource Groups

About the company

Galaxy Digital Inc. is a global leader in digital assets and data center infrastructure. The company delivers onchain infrastructure connecting institutions to digital assets and operates data center infrastructure for AI and HPC workloads.