Reliability Engineer

Eisen•New York, NY

8d•Hybrid

About The Position

We are seeking a Reliability Engineer to own quality at Eisen, a fast-growing company processing billions of financial records for major banks. This role involves ensuring the quality of shipped products and building repeatable systems for quality assurance. The engineer will collaborate across the engineering team, participate in architecture decisions, and have significant influence over product releases. This is an opportunity for someone passionate about software quality to make a substantial impact.

Requirements

5+ years of experience building test automation and CI/CD pipelines, with increasing responsibility for quality outcomes.
Experience in fintech, banking, or a similarly regulated environment.
Proficiency with JavaScript/TypeScript testing tools (Jest, Cypress, Playwright, or similar).
Experience building and maintaining CI/CD pipelines in GitHub Actions or equivalent, including writing YAML and debugging failures.
Experience with performance testing tools (k6, Artillery, Locust, or similar).
Understanding of how distributed systems fail and ability to spot architectural risks.
Strong communication skills to explain quality concerns to both engineers and leadership.
Pragmatic approach to balancing speed and quality, avoiding unnecessary coverage.
Comfortable with ambiguity and figuring things out independently, as this function is being built from scratch.

Responsibilities

Design and maintain automated tests across unit, integration, and E2E layers.
Own CI/CD quality gates in GitHub Actions, fixing slow or unreliable pipelines.
Build regression suites to catch issues early in the development cycle.
Set up performance and load testing to identify breaking points before customers do.
Manage test data to ensure reproducible tests across environments.
Utilize AI tools like Claude, Cursor, and Copilot to aid in testing processes.
Design testing strategies for PII handling, encryption, and audit trails.
Build quality gates to maintain SOC 2 compliance during scaling.
Implement measures to prevent data integrity bugs.
Validate financial data transformations at all pipeline stages.
Define release certification processes to ensure safe deployments.
Track and visualize quality metrics such as defect escape rate, rollback rate, and change failure rate.
Build dashboards and alerting systems for team visibility into quality status.
Collaborate with product and platform engineers to integrate testing earlier in the development cycle.
Communicate quality concerns effectively to engineers and leadership.
Participate in architecture reviews to identify and mitigate risks.
Mentor engineers to improve their testing practices and foster shared ownership of quality.