Site Reliability Engineer ( Must have an active TS SCI with POLY)

Aperio Global•McLean, VA

1d•$185 - $225•Onsite

About The Position

This role supports a critical mission and requires an active U.S. Government Security Clearance at the TS/SCI level with a required polygraph. We’re looking for a full-time Observability Engineer (OE) who is driven by understanding not just what is happening in complex, cloud-native systems—but why. You’ll be part of a highly collaborative data collection and software development team responsible for ensuring services meet the reliability, performance, and uptime expectations of our customers. This is an environment where systems evolve quickly, and attention to detail matters. You’ll help us stay ahead by keeping a constant pulse on capacity, performance, and cost—while continuously improving how we see, understand, and respond to system behavior. As an OE, you’ll design and build monitoring and observability solutions that give teams deep visibility into operational health. Your work will directly support mission success by enabling faster troubleshooting, stronger system insight, and better customer outcomes across the entire technology stack.

Requirements

Active/current TS/SCI with required polygraph
Bachelor’s degree in Computer Science or a related field
5+ years of relevant engineering experience
Hands-on experience with Kubernetes, Docker, Helm, and CI/CD pipelines (e.g., Jenkins or Concourse)
Familiarity with distributed version control systems such as Git
Experience working in AWS cloud environments
Proven experience implementing monitoring and observability solutions across complex systems and data feeds
Proficiency in Python and Java scripting
Advanced knowledge of Unix/Linux, with strong command-line comfort
Willingness to work onsite full time and participate in on-call rotations
A collaborative mindset and a sense of ownership when things go wrong

Nice To Haves

Experience with additional cloud providers beyond AWS
Familiarity with AWS CloudWatch or other native monitoring tools
Experience using Prometheus, Grafana, or similar tools for ETL pipelines, APIs, servers, networks, C2S services, and AI/ML platforms
Strong understanding of networking fundamentals
Experience with incident and problem management processes
Root Cause Analysis (RCA) experience
Exposure to ETL workflows and data pipelines
Organized, detail-oriented, and comfortable documenting and communicating work
Willingness to step into leadership roles during incidents—guiding others and driving issues to resolution

Responsibilities

Define and uphold standards for monitoring reliability, availability, performance, and maintainability of sponsor-owned systems
Design and architect operational solutions that support both applications and infrastructure
Drive service acceptance by introducing new operational processes, monitoring strategies, and automation to reduce risk and repeat issues
Partner closely with service and product owners to define key performance indicators (KPIs) and identify meaningful trends
Provide deep, hands-on troubleshooting support for production issues
Work with service owners to quickly identify root causes and restore services during performance or availability incidents
Build or leverage tools that correlate data across multiple systems to accelerate root-cause analysis
Coordinate with the sponsor during major incidents, large-scale deployments, and SecOps user support activities