{"id":1332104,"url":"https://alion.io/job/northrop-grumman-principalsr-principal-infrastructure-engineer","title":"Principal/Sr Principal Infrastructure Engineer","company":{"id":12494,"name":"Northrop Grumman","domain":"northropgrumman.com","url":"https://alion.io/company/northropgrumman","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":83,"open_postings":389,"ghost_share":0,"stale_share":0.689,"repost_share":0.008,"time_to_fill_p50_days":26,"computed_at":"2026-10-25T05:49:26Z"}},"role":"DevOps","role_family":"DevOps","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Dulles, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":125300,"max":187900,"currency":"USD","period":"year","gross":null,"usd_annual":187900},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Active Directory","optional":false},{"name":"Ansible","optional":false},{"name":"Bash","optional":false},{"name":"Configuration Management","optional":false},{"name":"DNS","optional":false},{"name":"GitOps","optional":false},{"name":"Linux","optional":false},{"name":"PowerShell","optional":false},{"name":"Python","optional":false},{"name":"TCP/IP","optional":false},{"name":"VMWare","optional":false},{"name":"Windows","optional":false},{"name":"Windows Server","optional":false},{"name":"CI/CD","optional":true},{"name":"GitLab CI","optional":true},{"name":"Jenkins","optional":true},{"name":"Red Hat","optional":true}],"status":"closed","first_seen_at":"2026-09-24T00:00:00Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-10-23T20:15:35Z","board_verified":false,"closed_at":"2026-10-23T20:15:35Z","days_open":29,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":29},"description":"RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: Top SecretTRAVEL: Yes, 10% of the TimeDescription\nAt Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.We have an opening for a Principal/Senior Principal Infrastructure Engineer to join our Product Security Engineering team supporting the secure development and operation of production infrastructure and software products for space systems. In this role, you will help design, build, automate, secure, and sustain the infrastructure and shared services that enable mission-critical software development and operations. You will work alongside infrastructure, software, DevOps, and cybersecurity engineers to operate reliable platforms, modernize engineering workflows, and ensure our systems remain secure, resilient, and maintainable throughout their lifecycle. This position is 100% on-site in Dulles, Virginia.\nJob Responsibilities\nOwn the deployment, operation, maintenance, and lifecycle management of production infrastructure and shared platform services across Windows, Linux, network, and virtualized environments.\nWork as part of an integrated infrastructure team, collaborating with fellow engineers, ISSOs, and ISSEs to translate operational and security requirements into maintainable solutions and resolve vulnerabilities, configuration findings, and production issues.\nAdminister Microsoft Active Directory, Group Policy, DNS, RADIUS, and other core identity and network services supporting production systems.\nDeploy, configure, patch, harden, monitor, and troubleshoot Windows and Linux servers in accordance with organizational security, availability, and performance requirements.\nAdminister VMware ESXi/vSphere environments, including virtual machines, storage, networking, capacity planning, availability, upgrades, and lifecycle management.\nConfigure, maintain, and troubleshoot Cisco network infrastructure, including switching, routing, VLANs, segmentation, access controls, and connectivity between systems and services.\nDevelop and maintain Ansible playbooks, scripts, and reusable automation to standardize provisioning, configuration management, system administration, and other recurring tasks.\nApply Infrastructure-as-Code and GitOps practices using version control, peer review, automated validation, configuration baselines, and controlled deployment of infrastructure changes.\nImplement and maintain monitoring, logging, alerting, backup, recovery, and operational health capabilities for production infrastructure services.\nTroubleshoot complex infrastructure issues across compute, virtualization, networking, storage, authentication, and application dependencies, including root-cause analysis and corrective action.\nMaintain infrastructure architecture, configuration standards, runbooks, and as-built documentation while driving automation, modernization, reliability, security, and reduction of technical debt.\nBasic Qualifications:\nPrincipal: 5 Years with Bachelors in Science; 3 Years with Masters; 1 Year with PhD. 4 year additional experience may be considered in lieu of a degree.\nSr Principal: 8 Years with Bachelors in Science; 6 Years with Masters; 4 Years with PhD. 4 year additional experience may be considered in lieu of a degree.\nMust have U.S. Citizenship with an active Top Secret security clearance with an active SCI indoctrination at the time of application. \nHands-on experience administering Windows Server environments and Microsoft Active Directory, including users and groups, Group Policy, domain services, permissions, authentication, and DNS.\nExperience deploying, configuring, patching, maintaining, and troubleshooting Windows and/or Linux servers in production or operational environments.\nHands-on experience with TCP/IP networking, including DNS, VLANs, routing, switching, firewalls, and troubleshooting network connectivity issues.\nExperience administering virtualized infrastructure using VMware vSphere/ESXi or a comparable enterprise virtualization platform.\nExperience using automation, scripting, or configuration-management technologies such as Ansible, PowerShell, Python, Bash, or similar tools.\nDemonstrated ability to troubleshoot complex infrastructure issues spanning operating systems, applications, identity services, networking, and virtualization; perform root-cause analysis; and drive technical problems through resolution.\nAbility to create and maintain clear technical documentation, including system configurations, operational procedures, architecture diagrams, and technical decisions.\nStrong written and verbal communication skills with the ability to collaborate effectively across functional engineering teams.\nPreferred Qualifications:\nDemonstrated technical curiosity and continuous learning through personal projects, home labs, open-source contributions, or similar hands-on efforts that reflect a strong interest in building, understanding, and improving complex systems.\nExperience configurating and troubleshooting Cisco network infrastructure, including switches, VLANs, trunks, Layer 2/Layer 3 networking, access controls, and network segmentation.\nExperience administering VMware vSphere environments, including vCenter, ESXi hosts, virtual networking, templates, storage integration, high availability, and platform lifecycle management.\nExperience developing infrastructure automation or internal tooling using Ansible, PowerShell, Python, Bash, Go, or similar technologies.\nExperience building or maintaining CI/CD pipelines using Jenkins or GitLab CI.\nExperience applying Infrastructure-as-Code, Policy-as-Code, Configuration-as-Code, GitOps, or related automated infrastructure-management practices.\nExperience with security hardening, vulnerability remediation, patch management, access control, and secure system administration.\nExperience implementing infrastructure monitoring, centralized logging, configuration-drift detection, automated validation, and remediation capabilities.\nFamiliarity with DISA STIGs, SCAP, RMF, NIST security controls, or comparable cybersecurity requirements applicable to regulated environments.\nExperience supporting air-gapped, isolated, laboratory, manufacturing, or other highly controlled environments.\nRelevant infrastructure, operating system, virtualization, networking, or cybersecurity certifications from organizations such as Microsoft, Red Hat, VMware, Cisco, or CompTIA.\nPrimary Level Salary Range: $125,300.00 - $187,900.00Secondary Level Salary Range: $156,400.00 - $234,600.00The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.","description_format":"text","description_chars":8831,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Annual bonuses","Continuous learning","Health insurance","Insurance coverage","Relocation assistance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":true,"industries":["Government","Information Security"],"lifecycle":[{"event":"open","at":"2026-09-27T11:20:50Z"},{"event":"close","at":"2026-10-23T20:15:35Z"}],"visa":[],"liveness":null,"pay":{"stated_usd_annual":187900,"is_top_pay":true},"html_url":"https://alion.io/job/northrop-grumman-principalsr-principal-infrastructure-engineer","json_url":"https://alion.io/job/northrop-grumman-principalsr-principal-infrastructure-engineer.json","meta":{"generated_at":"2026-10-25T06:20:18Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":8732,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-26T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":12494},"rest":"https://alion.io/mcp/rest/get_company?id=12494"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fnorthrop-grumman-principalsr-principal-infrastructure-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fnorthrop-grumman-principalsr-principal-infrastructure-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fnorthrop-grumman-principalsr-principal-infrastructure-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/northrop-grumman-principalsr-principal-infrastructure-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnorthrop-grumman-principalsr-principal-infrastructure-engineer"}]}