Senior Site Reliability Engineer — Remote

Modus Create; Aurora (IL); Remote; USD 120,000 - 160,000; Full time

Job summary

Modus Create is seeking an experienced Site Reliability Engineer to build reliable, scalable systems across AWS stack (ALB, ECS/Fargate, Aurora) and Python services. The role is embedded in cross-functional teams to reduce toil and improve uptime, with 24/7 on-call rotations and a focus on proactive reliability rather than firefighting.

You will design and maintain observability, define SLOs and budgets, mentor engineers, and contribute to reliability strategy as the team grows from 4 to 8–12

Qualifications

• 6+ years hands-on experience in SRE, DevOps, or Platform Engineering at scale.
• Strong proficiency in AWS (ALB, ECS/Fargate, RDS Aurora, Lambda, IAM).
• Production Python backend experience; comfortable debugging and optimizing Python services in containers and Lambdas.
• Experience building or bootstrapping SRE programs from scratch.

Responsibilities

• Design observability systems (metrics, logging, tracing) and define SLOs, error budgets, and monitoring strategies aligned with business needs.
• Own 24/7 P0 on-call rotation with 10-minute acknowledgment SLA; validate and escalated AI-generated incident reports to platform teams.
• Establish reliability standards and SLA targets for backend services.
• Mentor and onboard additional SRE engineers as team scales to 8-12.
• Participate in incident response, troubleshooting, root-cause analysis, and postmortems.
• Implement reliability improvements, capacity planning, and performance optimization.
• Build self-healing automation and toil-reduction initiatives to minimize manual operational work.
• Collaborate with teams to integrate reliability and observability into delivery.
• Support modern workloads including AI applications and services; understand their operational and reliability requirements.
• Create runbooks, architecture documentation, and troubleshooting guides to enable independence.
• Review infrastructure changes and contribute to reliability standards and consistency.
• Actively tune systems for latency, throughput, and resource efficiency based on observability data.

Skills

AWS

Python

Kubernetes

Docker

Terraform

CI/CD

Observability

SLOs

On-call

Linux

Git

Incident response

Tools

Kubernetes

Docker

Terraform

CloudFormation

Pulumi

Job description

Modus Create is seeking an experienced Site Reliability Engineer to build reliable, scalable systems across AWS stack (ALB, ECS/Fargate, Aurora) and Python services. The role is embedded in cross-functional teams to reduce toil and improve uptime, with 24/7 on-call rotations and a focus on proactive reliability rather than firefighting.

You will design and maintain observability, define SLOs and budgets, mentor engineers, and contribute to reliability strategy as the team grows from 4 to 8–12