Senior Cloud Infrastructure Engineer

REI Systems; United States; On-site; USD 140,000 - 180,000; Full time

Job summary

REI Systems is seeking a Senior Cloud Engineer to design, implement, and optimize secure, cost-effective cloud infrastructure for Federal environments. You will independently lead cloud initiatives from concept to delivery, collaborating across teams to meet mission-critical objectives in a compliant, multi-vendor landscape.

Responsibilities include evaluating on-premises-to-cloud migrations, building cloud-native architectures, and enforcing security and cost controls using AWS services and IaC

Qualifications

• 8+ years of professional cloud engineering experience across multiple project phases.
• 5+ years hands-on AWS experience including services such as EKS, ECS, S3, KMS, Secrets Manager, API Gateway, CloudFront, VPC, EC2, RDS, SQS, SNS, Security Groups, and NACLs.
• Demonstrated ability to independently lead cloud projects end-to-end with minimal supervision.
• Experience designing highly available systems using load balancing, horizontal scalability, and fault-tolerant architecture.

Responsibilities

• Lead design, implementation, and optimization of secure, cost-effective cloud infrastructure for Federal environments.
• Drive migration planning from on-premises to cloud with documented current/target-state architectures.
• Design cloud-native architectures compliant with Federal security requirements.
• Develop cost-optimization strategies using AWS tooling like Trusted Advisor and Cost Explorer.
• Collaborate with cross-functional teams to translate platform requirements into scalable cloud solutions.

Skills

Cloud & Infra

AWS Experience

End-to-end Leadership

HA Design

Programming Languages

Tools

Terraform

Terragrunt

Ansible

CloudFormation

Docker

Kubernetes

YAML

Job description

Overview

REI Systems' mission is to deliver reliable, innovative technology solutions that advance Federal clients' missions and exceed their expectations. Our technologists and consultants are passionate about solving complex challenges that impact millions of lives. We take a Mindful Modernization® approach in delivering our services, including application modernization, grants management, case management systems, government data analytics, and advisory services. This approach, the REI Way, ensures mission impact by aligning our clients' strategic objectives with measurable outcomes through people, processes, and technology. We offer the same commitment to our employees by providing professional development, meaningful projects, and flexibility to spend time with family and friends. We believe employees are at their best when fulfilled in both their professional careers and their personal lives. Learn more at www.REIsystems.com. Employees voted REI Systems a Washington Post Top Workplace in 2015, 2016, 2018, 2020, 2021, 2022, 2023, 2024, and 2025!

Responsibilities

• We are seeking a Senior Cloud Engineer to design, implement, and optimize secure, cost-effective cloud infrastructure for Federal agency environments. This role requires the ability to independently lead engineering initiatives from concept through implementation with minimal oversight, while collaborating cross-functionally to meet mission-critical objectives in a multi-vendor, compliance-driven landscape
• Independently lead the design, implementation, and delivery of scalable, secure, and cost-effective cloud infrastructure solutions, taking full ownership from planning through execution
• Evaluate on-premises infrastructure and applications to determine migration requirements, including documentation of current-state and target-state architecture, and development of compute and cost estimates
• Design and implement cloud-native application architecture, ensuring compliance with Federal security and operational requirements
• Perform Right-sizing analysis of cloud resources to optimize performance and cost, leveraging tools such as AWS Trusted Advisor and AWS Cost Explorer
• Implement AWS tagging strategies to enable cost allocation, billing breakdown by project/team/environment, and accurate chargeback/showback reporting
• Implement and maintain cloud security best practices, including configuration monitoring and compliance auditing via AWS Config , IAM policy management, and continuous vulnerability assessment
• Build and maintain Dashboards and Reporting for infrastructure health, cost, security posture, and performance using tools such as Prometheus, Grafana , and native AWS monitoring services
• Collaborate with architecture, operations, security, data center, and product development teams to translate platform requirements into cloud-native solutions that support mission objectives
• Develop and maintain network diagrams, runbooks, and support procedures for cloud and on-premises infrastructure
• Monitor network availability, capacity utilization, and system performance to meet committed SLAs and quality-of-service objectives
• Define and drive adoption of key architectural design patterns across all environment stakeholders
• Advise Federal agency leadership on cloud strategy, options analysis, and alignment with agency strategic plans
• Maintain and share best practices in cloud performance measurement, migration methodology, and implementation, informed by current industry trends
• Provide expertise in operational metrics, observability, and site reliability engineering (SRE) practices

Qualifications

• Required Skills & Experience
  • Core Cloud & Infrastructure
    • Minimum 8 years of professional experience across various phases of cloud engineering projects
    • 5+ years of hands‑on AWS experience, including EKS, ECS, S3, KMS, Secrets Manager, API Gateway, CloudFront, VPC, EC2, RDS, SQS, SNS, Security Groups, and NACLs
    • Demonstrated ability to independently lead cloud projects end-to-end with minimal supervision
    • Experience designing highly available systems using load balancing, horizontal scalability, and fault‑tolerant architecture
    • Working knowledge of one or more modern programming languages (Python, JavaScript, Go, .NET, Java, etc.)
  • Infrastructure as Code & DevSecOps
    • Deep, hands‑on experience with Infrastructure as Code (Terraform, Terragrunt, Ansible, AWS CloudFormation) and containerization/orchestration (Docker, Kubernetes, YAML configuration)
    • 5+ years developing and supporting CI/CD pipelines using tools such as Jenkins, SonarQube, and Artifactory/Nexus
    • Strong UNIX/Linux administration and shell scripting skills
  • Security, Compliance & Cost Management
    • Working knowledge of cloud security principles, firewall management, and network security controls
    • Hands‑on experience with AWS Config and AWS Trusted Advisor for continuous compliance and cost/security optimization
    • Experience designing and enforcing AWS resource tagging standards to sup