System Engineer III

Company: Reflexive Concepts
Location: Annapolis Junction
Posted on: April 1, 2026

Job Description:

Reflexive Concepts is seeking a skilled System Engineer III to join our growing team! Specifically, we are seeking a DevOps Engineer with extensive AWS experience, proven expertise in developing and managing GitLab CI/CD pipelines, and a familiarity with Terraform, Ansible and Python, as well as other related technologies. Qualifications: Twenty (20) years-experience as a SE in programs and contracts of similar scope, type and complexity Demonstrated experience in planning and leading Systems Engineering efforts Bachelor’s degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or related discipline from an accredited college or university is required Five (5) years of additional SE experience may be substituted for a bachelor’s degree Job Requirements: Develop Infrastructure as Code (IaC) and scripting to automate tasks, provision managed services, and build tools using Terraform, Ansible, and Python Install, configure, and performance-tune Kubernetes and cloud-native logging and metrics collection tools (e.g., Elasticsearch, Grafana/Prometheus) Develop and manage GitLab CI/CD pipelines to automate building, testing, and deploying code utilizing GitLab Runners and Argo CD Design, build, and maintain AWS infrastructure, including EC2, Lambda, EKS, RDS, S3, EFS, and EBS, using Terraform and auto scaling Manage commercial cloud computing platforms, primarily AWS Collaborate with development teams to optimize application performance and reliability Troubleshoot infrastructure issues and ensure system uptime Communicate and collaborate effectively with team members and stakeholders Desired: Hands-on Kubernetes experience with a focus on EKS Familiarity with FOSS tools such as Elasticsearch, Prometheus/Grafana, and PGAdmin, deployable in Kubernetes via Helm chart Familiarity with various Kubernetes storage class types (e.g., GP3, Longhorn, EBS)

Keywords: Reflexive Concepts, Lancaster , System Engineer III, IT / Software / Systems , Annapolis Junction, Pennsylvania