Senior Site Reliability Engineer

Pylon

SRE leading reliability and operational excellence at a mortgage tech platform. Designing systems, tooling, and processes for managing Pylon's production systems in Palo Alto.

Posted 4/14/2026full-timePalo Alto • California • 🇺🇸 United StatesSenior💰 $140,000 - $220,000 per yearWebsite

Tech Stack

Tools & technologies

AWSTerraform

About the role

Key responsibilities & impact

You'll own reliability and operational excellence for Pylon's production systems.
Designing and implementing monitoring, alerting, and incident response processes that scale as we grow.
Building tooling that makes the entire engineering team more effective.
Establish on-call rotations and runbooks.
Ensure our platform can handle the demands of a regulated, high-stakes financial product.
Spend 50%+ of your time writing code: building infrastructure tooling, automating operational burden, making reliability improvements, and productivity tools.

Requirements

What you’ll need

4+ years experience in SRE, infrastructure, or platform engineering roles
Experience working on a team of SREs at a company with mature SRE practices (not solo SRE roles)
Real on-call experience at scale in a large production environment (you've carried the pager and lived through incidents)
Deep AWS expertise (ECS, RDS, networking, security)
Strong experience with declarative infrastructure (Terraform, CDK, or similar)
Nix experience (we use it and want to expand its adoption)
Track record of building reliability tooling and automation
Can design and implement monitoring, alerting, and observability systems from first principles
Comfortable working in a regulated environment where "breaking things" is not an option.

Benefits

Comp & perks

Equity
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Hard Skills & Tools

SREinfrastructure engineeringplatform engineeringAWSTerraformCDKNixmonitoring systemsalerting systemsobservability systems

Soft Skills

operational excellenceteam collaborationincident responsereliability improvementsautomationtooling developmenton-call experiencedesign skillsproblem-solvingadaptability