Federal Platform Engineer
About The Position
Horizon3 is seeking a Federal Platform Engineer to help lead the deployment and operation of its product infrastructure in federal environments ranging from FedRAMP through classified workloads. The role will build, maintain, and improve the company’s platform running in AWS, creating scalable and secure systems that support innovation and provide developers with a flexible, efficient environment. The engineer will implement and improve cloud-native application platforms and deployment processes, build internal platform tooling and telemetry, create reusable infrastructure-as-code components, and promote automation and effective CI/CD practices. The role also involves evaluating technologies and automation patterns, supporting engineering documentation and project management, and operating infrastructure across AWS regions. Horizon3 is fully remote; the position may require up to 5% travel. Applicants must be U.S. citizens and possess or be able to gain and maintain a Top Secret security clearance.
Requirements
- At least 5 years of experience in DevOps, platform engineering, or related roles.
- Ability to manage concurrent initiatives and apply sound judgment in prioritization and time management.
- Creative, self-motivated, pragmatic, disciplined, detail-oriented, and results-oriented approach.
- Excellent analytical and problem-solving ability.
- Strong understanding of and experience with solution design and flow.
- Strong technical documentation and communication skills.
- Experience with Claude Code or other AI-enabled development tooling.
- Experience with GitLab CI/CD; Argo Events, Argo Workflows, and Argo CD; SSO technologies including OIDC, SAML, Okta, and social sign-ins; Terraform and Crossplane; secret-management tools including HashiCorp Vault, AWS Secret Manager, and External Secrets Operator; Ansible; shell scripting; Docker; Kubernetes including RKE2, K3S, and EKS; and logging and metrics tools including Datadog and OpenSearch.
- Go programming experience is required; Python is identified as a plus.
- Experience with AWS core services, including EC2, Lambda, EKS, S3, EBS, AuroraRDS (Postgres), VPC, VPCe, RT53, SQS, EventBus, IAM roles and policies, KMS, CloudTrail, Cognito, Organizations, and SSO.
- Bachelor’s degree in Computer Science or STEM, or equivalent experience.
- U.S. citizenship required.
- Must possess or be able to gain and maintain a Top Secret security clearance.
Nice To Haves
- Master’s degree in Computer Science.
- Experience with FedRAMP, CC SRG, NIST 800-53, or the Authority to Operate (ATO) process.
- Python programming experience.
Responsibilities
- Implement scalable, secure, and resilient cloud-native application platforms hosting core company applications, tools, and services across AWS regions.
- Identify, design, and deploy improvements to development and deployment processes so engineers can deploy with confidence.
- Design and implement internal platform tooling to collect telemetry and assess how effectively the platform supports engineers.
- Help establish an effective documentation culture within the Engineering Organization, including Confluence and documentation as code.
- Participate in project management and work allocation using Jira and Agile concepts.
- Create Terraform modules and Crossplane compositions that are easy for engineering teams to consume.
- Promote automation in infrastructure as code, platform operations, and CI/CD methodologies.
- Evaluate technologies and patterns for automation, application hosting, and infrastructure provisioning, and recommend and define necessary work.
- Perform other duties and responsibilities that may change with or without notice.
Benefits
- Competitive compensation and benefits package.
- Potential eligibility for performance bonuses, equity options, and other benefits.
- Career advancement opportunities.
- Remote work and a flexible work environment.
- Collaborative, innovation-driven culture and an inclusive, diverse team. Travel-related expenses are reviewed and require manager approval.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
