Senior Site Reliability Engineer

platform.sh; United States; Remote; USD 120,000 - 190,000; Full time

Job summary

Upsun (formerly Platform.sh) is seeking a Senior Site Reliability Engineer to lead the evolution of our cloud application platform from traditional operations to automation-driven SRE.

You will own engineering workstreams that improve reliability, scalability, and efficiency across multi-cloud environments, partnering with engineering, product, and platform teams to bake reliability into the software delivery lifecycle.

Qualifications

• 5+ years of SRE or platform engineering experience.
• Experience with multi-cloud environments (AWS, GCP, Azure) and IaC.
• Strong observability and incident response skills.

Responsibilities

• Drive reliability observability strategy with SLIs/SLOs.
• Automate infrastructure workflows with Terraform and Ansible across clouds.
• Scale CI/CD delivery pipelines for fast, secure releases.
• Lead incident response post-mortems and drive blameless analysis.

Skills

SRE practices

Prometheus

Grafana

ELK Stack

Terraform

Ansible

AWS

GCP

CI/CD

Tools

Terraform

Ansible

Prometheus

Grafana

ELK

Job description

About Upsun (formerly Platform.sh)

Upsun is the software factory for AI-human workflows. It is built for today’s hybrid teams, where AI agents write and test code and humans focus on solving the problems that really matter. Developers, DevOps engineers, and platform teams use Upsun to build, ship, and scale confidently without wrestling with backend infrastructure. We give you your time back. You get:

• Predictable performance, even at scale
• Secure, compliant environments by default
• Real-time observability and profiling built in
• Cloning, configuration, and provisioning in seconds
• AI-ready features that plug directly into your stack

The name says it all. "Up" means uptime, reliability, and acceleration. "Sun" reflects our follow-the-sun-support, a 24x7, globally distributed support team keeping the lights on while you rest. Our core belief is that software should power brighter solutions and greater innovation.

Upsunners are a remote, global workforce, and we thrive in a multicultural team. We are committed to open source and an open, welcoming environment. Our team spans the globe and the experience spectrum.

What's our commonality, our cultural fabric? A curious spirit and a thirst for knowledge; an eagerness for innovative ideas and cultures. We believe we can build anything together in an environment that frees you to do your best work.

The values:

• We make a positive impact.
• We aim for the stars.
• We care for each other.

Impact of a Senior Site Reliability Engineer

As a Senior Site Reliability Engineer at Upsun, you will lead the evolution of our cloud application platform from traditional cloud operations into a proactive, automation-driven SRE model. You will own critical engineering workstreams that enhance system reliability, scalability, and operational efficiency across multi-cloud environments. Partnering closely with engineering, product, and platform teams, you will embed reliability and performance into every stage of the software delivery lifecycle. In this role, you will anticipate architectural bottlenecks, drive infrastructure-as-code practices, and establish robust observability standards that ensure long-term system stability and uptime for our global users.

What to expect

• Drive reliability observability strategy: Architect and elevate system monitoring, alerting, and logging using Prometheus, Grafana, and ELK Stack, establishing actionable SLIs/SLOs aligned with core business metrics.
• Automate infrastructure workflows: Eliminate operational toil by designing and implementing resilient, automated solutions using IaC tools like Terraform and Ansible across AWS, GCP, and Azure.
• Scale CI/CD delivery pipelines: Optimize pipeline architectures for fast, secure, and zero-downtime releases, ensuring infrastructure resilience during high-volume deployment cycles.
• Lead incident response post-mortems: Guide high-priority incident triage, drive blameless post-mortem analysis, and implement preventative me