Senior Platform Engineer (Digital Ecosystem)

Job Description

Job Description

At PMAT , we work on mission critical systems that directly support the warfighter, designing, building, and securing modern digital capabilities across cloud, data, and software environments. Our teams tackle complex, real-world challenges where delivery matters more than theory, and innovation is driven by curiosity, collaboration, and purpose.

In this role, you’ll contribute to Naval Operational Architecture (NOA), working alongside engineers and operators to deliver resilient, forward-leaning solutions in support of national defense.

About the role: PMAT is seeking a highly experienced Senior Platform Engineer to support the design, automation, deployment, integration, sustainment, and modernization of secure cloud and platform environments for advanced Navy and DoD capabilities. This role emphasizes Infrastructure as Code (IaC), scripting, automation, AWS GovCloud engineering, and secure platform operations across enterprise, cloud, containerized, and hybrid environments. The candidate will work with cross-functional engineering, cybersecurity, development, and operational teams to build and maintain scalable, repeatable, secure, and mission-ready platform solutions. The role requires strong technical judgment, hands-on engineering capability, and the ability to support both tactical implementation and strategic platform modernization across dynamic mission environments.

Responsibilities:

• Lead and support the design, implementation, automation, configuration, integration, and sustainment of secure platform environments across AWS GovCloud, enterprise, containerized, and hybrid architectures.
• Develop, maintain, and improve Infrastructure as Code solutions to automate provisioning, configuration, deployment, monitoring, and sustainment of cloud and platform resources.
• Use scripting and automation to streamline platform operations, reduce manual processes, improve repeatability, support troubleshooting, and enable efficient system administration across mission environments.
• Support AWS GovCloud infrastructure development and operations by configuring, integrating, monitoring, and troubleshooting compute, storage, networking, identity, security, logging, and automation services.
• Engineer and maintain operating system, identity, authentication, networking, storage, and application hosting environments to support secure and reliable mission platform operations.
• Support containerized application platforms and orchestration environments by assisting with deployment, configuration, scaling, monitoring, troubleshooting, and sustainment activities.
• Apply cybersecurity and platform hardening practices by supporting secure configuration management, vulnerability remediation, patching, access control, compliance activities, and audit-ready documentation.
• Provide senior-level technical leadership across cross-functional teams by troubleshooting complex platform issues, coordinating engineering priorities, documenting technical solutions, mentoring team members, and communicating technical risks and recommendations to program stakeholders.

About Us: PMAT is an innovative small business founded with a passion for developing forward-leaning solutions from exceptional people that increase the mission's capability. We focus on designing and building impactful digital solutions that utilize modern cloud, data, and software concepts. Our passion is working on complex and progressive challenges such as edge platform computing, containerizing legacy platforms, distributed data platforms, or heterogeneous data analysis.

We recruit, retain, and foster a team motivated to pursue passions, investigate new ways of doing things, and embody an innovative and entrepreneurial spirit. We believe in being curious about every element of a problem and experiment relentlessly. We foster continuous learning in an environment that encourages positive collaboration and expands our capabilities. We tap into collective intelligence, acknowledging that the most brilliant people may not be in the room.  Above all else, we believe that delivering and demonstrating is more potent than a sheet of paper.  We are passionate about mission-centric design and delivering effective capabilities to and for the warfighter.

Whether you’re an experienced engineer or just beginning your career, you’ll work alongside experts who are committed to solving mission-critical problems. If you’re passionate about using your skills to make a real difference, apply today and become part of a team that’s shaping the future of defense technology!

Required Skills and Experience:

• Experience supporting platform engineering, cloud infrastructure, systems administration, DevOps, infrastructure automation, or related technical infrastructure roles.
• Experience supporting enterprise, cloud, containerized, hybrid, or application hosting environments.
• Experience using scripting, automation, configuration management, or Infrastructure as Code concepts to support technical operations.
• Experience supporting infrastructure deployment, configuration, troubleshooting, monitoring, sustainment, and modernization activities.
• Experience working with operating systems, networking, identity services, authentication, storage, and application infrastructure.
• Understanding of cybersecurity, access control, system hardening, vulnerability management, and secure configuration practices.
• Ability to troubleshoot complex technical issues across platform, infrastructure, application, network, cloud, and security environments.
• Strong written and verbal communication skills with the ability to explain technical issues, risks, dependencies, and recommendations to engineering, cybersecurity, program, and operational stakeholders.

Preferred Skills and Experience:

• Experience engineering, deploying, automating, and sustaining infrastructure within AWS GovCloud environments.
• Experience with AWS services including EC2, Security Groups, S3, EBS, EFS, Route 53, IAM policies and roles, CloudFormation, CloudWatch, Lambda, ELB, Availability Zones, VPCs, subnets, route tables, endpoints, NACLs, Transit Gateways, VPC peering, AWS Directory Services, AWS Workspaces, and AWS CLI.
• Experience developing and maintaining Infrastructure as Code using tools and formats such as CloudFormation, YAML, JSON, Git-based workflows, and related automation practices.
• Experience using scripting and programming languages such as Bash, Python, PowerShell, and JavaScript to automate platform deployment, configuration, troubleshooting, and operational tasks.
• Experience with Linux operating systems, particularly RHEL and Amazon Linux, as well as Windows Server environments.
• Experience with containerization and orchestration technologies such as application containers, OpenShift Container Platform, Kubernetes, and service mesh environments.
• Experience with foundational infrastructure services and security concepts including DNS, PKI, TLS, LDAP, Active Directory, authentication, authorization, OpenID Connect, SAML, and single sign-on.
• Experience with networking concepts including ports and protocols, firewall rules, basic routing, VPC networking, subnets, route tables, endpoints, NACLs, Transit Gateways, and VPC peering.
• Experience supporting web application infrastructure using web servers, reverse proxies, APIs, databases, authentication services, Apache, NGINX, PostgreSQL, SQL, Node.js, React, HTML, CSS, and JavaScript.
• Experience with system hardening, STIG implementation, vulnerability scanning, patching, ACAS remediation, endpoint security, and HBSS.

Education and Certification Requirements:

• Bachelor’s Degree or Equivalent Experience

Citizenship and Clearance requirements:

• US Citizenship required
• No dual citizenship

• Active DOD Secret security clearance is required
• TS/SCI Eligible security clearance preferred

Location/Address:

• 100% On-site
• San Diego, CA, NAVWAR

Travel & Passport:

• 10%, CONUS and OCONUS
• Current passport will be required

Work Environment: PMAT offices as needed. In some cases, work in a government facility may be required. Travel may be required for customer engagement, team coordination, and potentially for business development.

PMAT is an equal-opportunity employer. We believe in hiring a diverse workforce and sustaining an inclusive, people-first culture. We are committed to non-discrimination on any protected basis, such as disability and veteran status, or any other basis covered under applicable law.

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