Senior Software Engineer in Test

Elios, Inc.; United States; Remote; USD 146,000 - 157,000; Full time

Job summary

Elios, Inc. is seeking a senior quality engineer who writes code first and tests second, owning the full testing picture for high-stakes fintech products. You will set test strategy, build automation, and help teams catch problems before customers see them.

We value quality as a shared responsibility and seek someone who can shape standards, tooling, and practices across the engineering org. This fully remote role is one of two seats available.

Qualifications

• 8+ years in software testing, automation, or SDET with ownership of production quality.
• Experience with the full testing pyramid and CI/CD integration.
• Familiar with AI-assisted testing and debugging techniques.
• Mentor or coach teammates to raise testing standards.

Responsibilities

• Own test planning for new features, focusing on real-world failure modes.
• Ensure changes work as specified and solve the intended problem.
• Diagnose root causes of defects and prevent recurrence.
• Engage at design stage with engineering and product teams.
• Apply AI tooling to testing and review outputs like PRs.
• Reduce flaky tests and shorten feedback loops for faster releases.
• Coach engineers on writing better tests.

Skills

Test automation

Quality ownership

CI/CD testing

AI-assisted testing

Mentoring teammates

US work authorization

Tools

CI/CD tooling

Mocks & fixtures

Job description

Location: Remote (US) | Type: Full Time | Experience: 8+ years | Pay: $146K-$157K

About the Role

We're looking for a senior quality engineer who writes code first and tests second, someone who can own the full testing picture for a product where mistakes cost real money. You'll set the test approach, build the automation behind it, and help engineering teams catch problems long before customers ever see them.

Our client is a growth-stage consumer fintech with a large, active customer base. Their engineering org treats quality as a shared responsibility, and this hire will help shape the standards and tooling every team relies on. We're filling two of these seats.

If you'd rather prevent bugs than chase them, keep reading.

What You'll Do

• Own test planning for new features, with a focus on what breaks under real-world conditions: odd inputs, partial failures, heavy load
• Check both sides of every change: does it work as specified, and does it solve the problem it was meant to solve
• Dig into escaped defects, find the root cause, and close the gap so the same class of bug doesn't come back
• Get involved at the design stage with engineering and product, not just at the end of a sprint
• Bring AI tooling into your day-to-day testing and debugging, and review its output as carefully as any pull request
• Keep the pipeline fast by cutting flaky tests and shortening feedback loops
• Coach other engineers on writing better tests

Qualifications

• 8+ years in software testing, test automation, or SDET roles, with clear ownership of quality on production systems
• Deep familiarity with the full testing pyramid: unit, integration, contract, regression, and end-to-end
• Experience running tests inside CI/CD and managing test data, fixtures, and mocks
• Practical experience using AI assistants in testing work
• Comfort working with incomplete requirements and making sound calls anyway
• A history of mentoring or leveling up teammates
• US work authorization required; this role cannot sponsor visas

Nice to Have

• Load or performance testing
• Distributed or service-oriented architectures
• Financial services or other environments where accuracy is critical

Why Join Us

This is a chance to set the bar for quality on an engineering team that takes it seriously. The work is fully remote, the product reaches a large number of everyday users, and the standards you put in place will outlast any single release.

If you want to be the engineer people trust to say "this is ready," this is that seat.