Engineering Manager, Resilience & Chaos Testing

Affirm, Inc.; Boston (MA); Remote; USD 204,000 - 264,000; Full time

Benefits offered by this job

Health coverage for you and dependents

Monthly tech stipend

Flexible time off

Employee stock purchase plan (ESPP)

Job summary

Affim is seeking a seasoned Engineering Manager to lead our Resilience Engineering team. This role focuses on production load testing and chaos engineering to ensure reliability of our production systems.

You will help engineers test system behavior under stress and failure conditions in production, identifying and mitigating issues before they affect users. You will define vision, mentor engineers, build safe platforms, and collaborate with infra, product, and security leaders.

Qualifications

• Proven experience leading engineering teams in reliability, infrastructure, or distributed systems.
• Hands‑on experience with production load testing, chaos engineering, or large‑scale system validation.
• Experience with leveraging a chaos engineering vendor such as Gremlin, Harness, or something similar.
• Strong understanding of failure modes in distributed systems, including latency, partial failure, and cascading outages.
• Experience building or operating systems with strong safety guarantees (isolation, rate limiting, guardrails, auditability).
• Familiarity with cloud‑native environments (AWS, Kubernetes) and observability tooling.
• Strong programming background (e.g., Python, Kotlin, Java, or similar).
• Excellent problem‑solving skills and the ability to balance long‑term resilience investments with immediate business needs.
• Strong communication and leadership skills, with a track record of influencing engineering practices across teams.
• This position requires either equivalent practical experience or a Bachelor’s degree in a related field.

Responsibilities

• Lead and mentor a team of engineers building platforms and tooling for safe production experimentation.
• Own the design and evolution of platforms that enable safe, controlled production load testing and fault injection.
• Establish best practices for safely testing system limits and failure scenarios in production.
• Drive reliability improvements by systematically identifying weaknesses through load testing and chaos experiments.
• Establish monitoring, alerting, and incident response practices tailored to proactive resilience validation.

Skills

Leadership

Reliability engineering

Chaos engineering

Production load testing

Distributed systems

AWS

Kubernetes

Python

Java

Kotlin

Education

Bachelor's degree or equivalent practical experience

Tools

Gremlin

Harness

Job description

Affim is seeking a seasoned Engineering Manager to lead our Resilience Engineering team. This role focuses on production load testing and chaos engineering to ensure reliability of our production systems.

You will help engineers test system behavior under stress and failure conditions in production, identifying and mitigating issues before they affect users. You will define vision, mentor engineers, build safe platforms, and collaborate with infra, product, and security leaders.