Sr. Systems Integration Engineer

Requisition Number: 28034 Required Travel: 0 - 10% Employment Type: Full Time/Salaried/Exempt Anticipated Salary Range: $112,421.00 - $150,000.00 Security Clearance: Secret Level of Experience: Senior Meet HII’s Mission Technologies Division Our team of more than 7,000 professionals worldwide delivers all-domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense – the data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that’s right for you. Apply today. We look forward to meeting you. To learn more about Mission Technologies, click here for a short video: Leadership Mindset at HII – Mission Technologies Leadership at HII is a mindset, not a title. Through our Leadership Capability Framework, we define how every team member contributes to our mission and culture: Know & Grow Your People – Commit to learning and supporting team success. Build Relationships – Communicate openly, collaborate well, and build trust. Take Ownership – Deliver on commitments and take pride in your work. Customer First – Focus on the mission and those we serve. Shape the Future – Bring ideas, curiosity, and continuous improvement. Act with Urgency – Take initiative and follow through with purpose. These capabilities guide how all employees contribute to our shared success across Mission Technologies. Summary HII Mission Technologies’ System Integration group is seeking a Senior Systems Integration Engineer to support the integration, testing, and deployment of the Advanced Training Domain (ATD) System—a shipboard combat system trainer that enhances U.S. Navy operational readiness. This full‑time, on‑site role is part of a highly skilled engineering team delivering reliable, high‑fidelity mission training capabilities. In this role, you will ensure software components, data interfaces, system services, and third‑party integrations operate cohesively as part of a fully integrated combat system training environment. Impact, Growth & Development In this role, you will directly support: • Integration of high‑fidelity combat system training capabilities used across the U.S. Navy • Collaboration with developers, testers, and systems engineers to solve real‑world integration challenges • Mission‑critical systems that enhance national defense and strengthen warfighter readiness Key Job Responsibilities Define and execute cross‑platform (Windows/Linux) integration approaches, sequencing, and risk‑mitigation strategies for multi‑component systems Develop and maintain system architecture views, interface definitions (ICDs), data flows, and configuration baselines to ensure subsystem compatibility and interoperability Author integration plans, deployment runbooks, verification procedures, and acceptance criteria; ensure environment parity and version alignment across development, test, and shipboard environments Diagnose complex software, OS, storage, and network interactions; lead root‑cause analysis and corrective/preventive actions Direct integration and end‑to‑end testing (functional, performance, resilience/failover); ensure test coverage, traceability, and readiness evidence Implement and maintain automation using Ansible/PowerShell/Python and CI/CD pipelines (GitLab/Jenkins) to streamline builds, deployments, and configuration enforcement Monitor system telemetry, tune performance, and ensure alignment with DoD cybersecurity requirements (certificates, secure configurations, vulnerability remediation, and auditability) Collaborate with software, systems, network, and cybersecurity teams; work with vendors and stakeholders to evaluate components, resolve issues, and support upgrades Lead installation, configuration, and optimization tasks in lab and shipboard environments; support acceptance testing and system verification (up to 10% travel) Mentor junior engineers and promote best practices for integration, documentation quality, and change control Perform additional related duties as assigned to support project and organizational needs What you must have Required Education & Experience 9 years of relevant experience with a Bachelor’s degree in a related field, OR 7 years of relevant experience with a Master’s degree in a related field, OR 4 years of relevant experience with a PhD or Juris Doctorate in a related field, OR High school diploma/equivalent and 13 years of relevant experience Required Knowledge & Skills Advanced proficiency with Linux (CLI, services, filesystems/permissions, SELinux/AppArmor basics, package management, log analysis) and Windows (services, registry, policies, Event Viewer) Strong Bash and PowerShell scripting; experience with Ansible or PowerShell DSC, and Python for automation and deployment workflows Solid networking fundamentals: TCP/IP, DNS, DHCP, VLANs, routing/switching, NAT; diagnostics with Wireshark, tcpdump, ss/netstat, and cross‑layer log correlation Experience integrating systems via REST/gRPC APIs, sockets, shared storage, or message‑oriented middleware (e.g., ActiveMQ) Proficiency with Git (or Subversion), branching/versioning strategies, tagging, release notes, and maintaining configuration baselines Experience monitoring/tuning system performance; enforcing secure configurations; managing certificates, encryption, access controls, and vulnerability remediation Familiarity with Agile/Scrum and ability to lead integration tasks within sprints Required Credentials Must be a U.S. Citizen Must hold a current or active DoD Secret clearance Ability to otain a DoD Information Assurance Technician (IAT) Level II certification or higher (e.g., Security CE, CCNA Security, CySA) within 3 months of hire if not currently held. Preferred Qualifications Experience with Cisco IOS/NX‑OS; routing (OSPF/BGP), switching (STP/VTP), ACLs, QoS; CCNA or equivalent experience Experience with VMware vSphere/ESXi, Hyper‑V, KVM; Docker/Podman; familiarity with Kubernetes concepts Experience with Splunk/ELK for log aggregation; Prometheus/Grafana for metrics and dashboard creation Exposure to RMF, NIST 800‑53, DISA STIGs, and secure baseline enforcement Experience with modeling & simulation systems or U.S. Navy training environments; shipboard deployment or verification experience Experience with ActiveMQ/RabbitMQ/Kafka and managing schema/version compatibility Strong documentation skills using Confluence/Markdown and proficiency with diagramming tools (Visio/Draw.io) Possession of an active IAT Level II certification (e.g., Security CE, CCNA Security, CySA) Physical Requirements Work may be performed in office, industrial, or shipboard environments. Must be capable of climbing ladders, working in confined spaces, and tolerating temperature variances. Lifting and moving materials may be required. The listed salary range for this role is intended as a good faith estimate based on the role's location, expectations, and responsibilities. When extending an offer, HII's Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the role's function and a candidate's education or training, work experience, and key skills. HII is more than a job - it’s an opportunity to build a new future. We offer competitive benefits such as best-in-class medical, dental and vision plan choices; wellness resources; employee assistance programs; Savings Plan Options (401(k)); financial planning tools, life insurance; employee discounts; paid holidays and paid time off; tuition reimbursement; as well as early childhood and post-secondary education scholarships. Bonus/other non-recurrent compensation is occasionally offered for qualified positions, and if applicable to this role will be addressed by the recruiter at the screening phase of application. Why HII We build the world’s most powerful, survivable naval ships and defense technology solutions that safeguard our seas, sky, land, space and cyber. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals. Recognized as one of America’s top large company employers, we are a values and ethics driven organization that puts people’s safety and well-being first. Regardless of your role or where you serve, at HII, you’ll find a supportive and welcoming environment, competitive benefits, and valuable educational and training programs for continual career growth at every stage of your career. Together we are working to ensure a future where everyone can be free and thrive. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law. Do You Need Assistance? If you need a reasonable accommodation for any part of the employment process, please send an e-mail to View email address on click.appcast.io and let us know the nature of your request and your contact information. Reasonable accommodations are considered on a case-by-case basis. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this email address. Additionally, you may also call View phone number on click.appcast.io for assistance. Press 3 for HII Mission Technologies.aa415a4b-8b21-40fc-a65c-70d2b25ca29a