Platform Engineer

Sentinel Blue is looking for a Platform Engineer to join our Platforms Team. This role is ideal for someone who enjoys building scalable, reliable, and secure technical platforms that enable teams to deliver services efficiently and consistently. Our ideal candidate is a strong systems thinker who can design and automate infrastructure, reduce operational friction, and embed security and compliance into platform capabilities.

This role will support our internal teams by developing and maintaining shared infrastructure, automation, and tooling that underpin service delivery.

This is a full‑time position that is fully remote. Due to the nature of our work, you must be a U.S. citizen with eligibility for a clearance. No exceptions.

The Platform Engineer may design and build cloud foundations, develop infrastructure‑as‑code templates, improve CICD pipelines, and automate system provisioning and configuration. They will focus on creating reliable, reusable platform components that support secure application deployment, system operations, and compliance requirements.

The Platform Engineer will work closely with Operations teams to ensure platform services are resilient, observable, and aligned with frameworks such as CMMC and NIST 800‑171. They will participate in design discussions, contribute to technical standards, and continuously improve platform reliability and developer experience. The role provides opportunities to work with modern cloud tooling, automation frameworks, and observability stacks, while growing into senior technical or architectural leadership roles.

• Design, build, and maintain shared platform services that support secure and scalable infrastructure across client and internal environments.
• Develop and maintain infrastructure‑as‑code (IaC) using tools such as Terraform, ARM/Bicep, or similar frameworks.
• Build automation for system provisioning, configuration management, patching, and lifecycle operations.
• Support and improve CICD pipelines, deployment workflows, and platform integrations.
• Implement platform‑level security controls, including identity integration, logging, monitoring, encryption, and segmentation.
• Collaborate with Security Operations and Compliance teams to embed compliance and audit‑readiness into platform designs.
• Monitor platform health and reliability, supporting incident response, root cause analysis, and continuous improvement efforts.
• Communicate platform designs, changes, and operational guidance clearly to internal teams and clients.
• Contribute to platform documentation, standards, runbooks, and architectural diagrams.
• Identify opportunities to reduce manual effort, improve consistency, and enhance developer and operator experience through automation.

Sentinel Blue is a young company with a focused mission:
We’re bringing enterprise‑class cybersecurity to small and medium sized businesses. Frankly, we’re pushing the envelope of how things are done and constantly seeking innovative ways to meet that mission. The pace is fast, and we’re always learning new things. This is a great place if you want to expose yourself to new and emerging technologies, want to be challenged, and want to build your skills.

Further, success in this role can quickly transition into senior engineering, platform leadership, or architectural roles. The right person will find themselves in a fun, dynamic environment, working on interesting problems and making a real difference.

You will be required to achieve a Security+ certification in the first 2 months of hire; we’ll cover your certification costs and provide paid time for you to study!

• U.S. citizenship – by nature of our work with the defense industry, all employees must be eligible for a Secret clearance.
• 2+ years of experience in platform engineering, infrastructure engineering, Dev Ops, systems engineering, or related technical roles. Hands‑on experience building and operating cloud infrastructure in Azure.
• Practical experience with infrastructure‑as‑code, automation, configuration management, and change control systems.
• Strong understanding of system security…