Infrastructure Engineer

Mosaic.tech; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

Wraithwatch is seeking an experienced Infrastructure Engineer to own the deployment backbone across federal and commercial deployments. You will build and maintain CI/CD pipelines, deployment automation, monitoring, and on‑call readiness to keep 20+ environments running reliably and in sync.

This role demands designing for air‑gapped networks, strict compliance, and diverse topologies while scaling releases across dozens of deployments.

Qualifications

• 4+ years in infra engineering, SRE, DevOps, or platform engineering.
• Strong experience with IaC (Terraform, Pulumi) and config mgmt (Ansible, Salt).
• Deep Linux systems knowledge.
• Experience building multi-environment CI/CD pipelines.
• Proficiency with Docker and Kubernetes.
• Experience with at least one major cloud provider (AWS).
• Comfortable in regulated environments with limited access.
• Willingness to work extended hours for production issues.

Responsibilities

• Build and maintain deployment automation and CI/CD pipelines across 20+ federal environments in parallel.
• Own production deployments' operational health — monitoring, alerting, incident response, and post-mortems.
• Design infrastructure for air-gapped networks, strict compliance, and variable topologies.
• Build tooling for visibility into deployment state without manual inspection.
• Automate processes to scale across hundreds of environments.
• Collaborate with product engineers to ensure features deployable across all envs.
• Manage cloud infra (AWS, GCP) and on‑prem deployments as needed.
• Participate in on‑call rotations.

Skills

Infra engineering

SRE/DevOps

IaC Terraform/Pulumi

Linux expertise

CI/CD pipelines

Docker & Kubernetes

AWS cloud

Tools

Docker

Kubernetes

Terraform

Ansible

Job description

About Wraithwatch

Wraithwatch was founded by alumni from SpaceX, Palantir, and Anduril to build the next generation of AI-powered cyber defense systems for the United States and its allies. We are deployed today to customers spanning the federal government, aerospace, defense, manufacturing, and emerging technology. Our core product is a continuously adaptive cyber defense platform utilizing generative artificial intelligence agents to autonomously model and construct a digital twin of an organization’s entire IT and cybersecurity environment and analyze it for weaknesses, misconfigurations, and chains of possible attack.

We currently operate numerous live federal deployments with more coming online this year. Each one is a distinct environment with its own infrastructure, compliance requirements, and operational constraints. We need someone to make all of them run reliably at the same time.

The Role

You are responsible for the infrastructure that keeps Wraithwatch running in production across our federal and commercial deployments.

You will build and maintain the CI/CD pipelines, deployment automation, monitoring, and operational tooling that let a small team ship software reliably across all of these environments without things falling apart. When something breaks at 2am in a production federal environment, you’re the person who gets it back up. When we need to roll a release across 20 deployments in a week, you’re the person who makes that possible without manual SSH sessions into each one.

This is not a role where you’re managing infrastructure for a single product in a single cloud account. You’re building the deployment and operations backbone for a company that is scaling fast across highly constrained federal and Fortune 500 environments, and every shortcut you skip today becomes a fire you fight next month.

Responsibilities

• Build and maintain deployment automation and CI/CD pipelines that reliably ship software across 20+ federal environments in parallel.
• Own the operational health of all production deployments — monitoring, alerting, incident response, and post-mortems.
• Design infrastructure that accounts for the reality of federal environments: air-gapped networks, strict compliance requirements, variable network topologies, and limited access windows.
• Build tooling that gives the engineering team visibility into the state of every deployment without requiring manual inspection.
• Automate everything that can be automated. We cannot scale to hundreds of environments with manual processes.
• Work with the product engineering team to ensure new features are deployable across all environments without environment-specific hacks.
• Manage and improve cloud infrastructure (AWS, GCP) and on-prem deployments depending on customer requirements.
• Participate in on‑call rotations for production environments.

Qualifications

Basic:

• 4+ years of experience in infrastructure engineering, SRE, DevOps, or platform engineering
• Strong experience with infrastructure-as-code (Terraform, Pulumi, or similar) and configuration management (Ansible, Salt, or similar)
• Deep Linux systems knowledge — you should be comfortable debugging at the OS level, not just the application level
• Experience building and maintaining CI/CD pipelines for complex multi-environment deployments
• Proficiency with containerization and orchestration (Docker, Kubernetes)
• Experience with at least one major cloud provider (AWS preferred)
• Comfortable working in highly constrained or regulated environments where you can’t just spin up whatever you want
• Willingness to work extended hours when production issues demand it — we are a seed‑stage startup with federal customers who do not tolerate downtime

Preferred:

• Experience deploying software into federal, DoD, or IC environments
• Familiarity with FedRAMP, STIG compliance, or ATO processes
• Experience with air‑gapped or disconnected network deployments
• Ability to obtain and maintain a security clearance
• Experience operating infrastructure at scale across many isolated environments simultaneously
• Familiarity with monitoring and observability stacks (Prometheus, Grafana, Datadog, ELK, or similar)