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Senior Technical Program Manager, IT Infrastructure

Join Radiant as a Senior Technical Program Manager to oversee IT and security programs for innovative portable nuclear microreactors.

Location
El Segundo, CA
Compensation
Not disclosed
Level
senior
Type
full time · On-site

Posted by employer 1 month ago

First seen on Joblaze 1 month ago

Last verified on the company career page 1 day ago

Apply at Radiant → Save job Scanned from radiantnuclear.com

Requirements

Experience
6+ years

Not disclosed in this posting: compensation, visa sponsorship.

Benefits

Flexible PTO Equity/Stock Options Remote Work Health Insurance Parental Leave

Joblaze summary

In this role, the Senior Technical Program Manager for Security & IT at Radiant will oversee the coordination and delivery of multiple concurrent IT and security programs across various sites, ensuring teams remain aligned and on schedule. The position requires expertise in managing IT infrastructure within new construction environments, familiarity with compliance frameworks, and proficiency in project management tools like Atlassian. This role is ideal for someone with significant experience in technical program management, particularly in regulated sectors such as nuclear or defense. Radiant's innovative approach to portable nuclear power development adds a unique dimension to the work en

Joblaze insights

  • Listed about a month ago — first seen on Joblaze September 5, 2026. Last confirmed on Radiant's careers page October 29, 2026.
  • Jira appears in 2.3% of 985 comparable senior management roles in United States; CMMC appears in 0.1% of 985 comparable senior management roles in United States.

Quick facts

Is the Senior Technical Program Manager, IT Infrastructure role remote?
No — this is an on-site role in El Segundo, CA.
How much experience is required?
At least 6 years of relevant experience for this Senior Technical Program Manager, IT Infrastructure role.
Where is the role based?
Radiant is hiring for this position in El Segundo, CA.
What's the tech stack?
Joblaze extracted these technologies from the posting: Atlassian, CMMC, Confluence, Jira, NIST SP 800-171.
What seniority level is this role?
Radiant targets senior candidates for this position.
Is this full-time or contract?
Full-time for this Senior Technical Program Manager, IT Infrastructure role at Radiant.

From the original posting

About the Role

Radiant is seeking a Technical Program Manager, IT and Security, to own visibility and delivery across our IT and security portfolio: eight concurrent programs across three states, including a reactor program at Idaho National Laboratory, a fuel facility and manufacturing plant in Tennessee, and warehouse and office buildouts in Los Angeles.

We have strong technical leaders on each effort. This role sees the whole portfolio, keeps it visible, and holds teams to their commitments. You won't write the SSP or design the network; you'll keep the people who do aligned, unblocked, and delivering against a schedule everyone can see. You'll represent IT leadership in meetings we can't attend, and be the reason nothing quietly slips.

Responsibilities & Duties:

  • Build the system of record for tracking IT and security programs, including the tooling, cadence, and reporting.

  • Own the operating cadence: recurring IT and security status meetings plus cross-functional reviews with facilities, construction, engineering, and external partners; set agendas, drive to decisions, capture actions, follow up.

  • Maintain integrated schedules, dependencies, risks, and milestones across all eight concurrent programs; know what is on track, what is at risk, and what needs escalation before anyone asks.

  • Produce network and architecture diagrams, project charters, status reporting, and executive summaries.

  • Keep IT scope sequenced with construction alongside the facilities PM and general contractor so structured cabling, MDF/IDF, low voltage, access control, cameras, wireless, and carrier circuits are planned into GC milestones.

  • Escalate slipping commitments and unresolved blockers to the VP of IT and VP of Cybersecurity early enough to act on them, and represent IT leadership in meetings they cannot attend

  • Support the CMMC and NIST SP 800-171 program alongside executives: milestone plans, POA&M status, remediation coordination, evidence collection, assessor coordination; technical control decisions stay with the security team.

  • First 90 days: inventory all eight programs and their owners, stand up the Jira and Confluence structure, publish the first integrated portfolio schedule, and establish the recurring reporting cadence

Required Skills & Qualifications:

  • 6+ years in technical program or project management, including IT infrastructure and security programs.

  • Breadth of IT project experience: site build-outs, infrastructure deployment, IT strategy and roadmap planning, program and project management, vendor selection and contract management, budget ownership, and IT operations.

  • Hands-on Atlassian administration-built Jira projects, workflows, dashboards, and Confluence spaces that teams actually adopted, not just filed tickets in someone else's instance

  • Can hold their own in an architecture review; reads and produces network diagrams; understands infrastructure and security concepts; asks the right questions of engineers without needing translation.

  • Strong written communication skills, producing documentation that engineers respect and executives can act on.

  • Proven experience fostering a culture of influence, effective stakeholder management, and teamwork.

  • Regulated environment experience (nuclear, defense, aerospace, life sciences, or similar) including work under compliance frameworks

Desired Skills & Qualifications:

  • Prior hands-on IT experience as an IT manager, IT operations, help desk management, systems administration, IT engineering, or information security operations.

  • Delivered IT infrastructure into new construction or facility buildouts: manufacturing, industrial, healthcare, or multi-site commercial

  • Exposure to OT and IT convergence in manufacturing or plant settings

  • Site decommissioning or IT asset disposition experience

  • Familiarity with CMMC, NIST SP 800-171, or FedRAMP

  • DOE, national laboratory, or ITAR-controlled environment experience

  • PMP or equivalent formal project management training

  • Multi-site or multi-state portfolio experience with regular travel

Additional Requirements:

  • Must be willing to work extended hours and weekends as necessary to accomplish our mission.

  • Must work 100% onsite at Radiant's El Segundo HQ.

  • Travel up to 15%, heavier during site activation windows.

 

Benefits and Perks

  • Stock: Substantial incentive stock plan for all full-time employees.

  • Daily catered lunch. Free snacks and drinks.

  • Flexible PTO policy. Remote workday allocation.

Standard company text repeated across Radiant's postings is omitted here.

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