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Senior Mission Planner, Supply Chain

Own risk assessment and master scheduling in a key operations role at a startup building portable nuclear microreactors.

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

Posted by employer 2 days ago

First seen on Joblaze 19 hours ago

Last verified on the company career page 19 hours ago

Apply at Radiant → Save job Scanned from radiantnuclear.com

Skills & Technologies

What you'll build

  • Manage master project schedules
  • Assess schedule risk across individual programs
  • Present schedule status to executives
  • Create and analyze schedules
  • Conduct root cause analysis for schedule impacts

Must have

  • 5-20 years of relevant experience in master scheduling
  • Proficiency in Microsoft Project and Smartsheet
  • Strong analytical and organizational skills
  • Excellent cross-functional and executive communication skills

Nice to have

  • Experience in a start-up or rapidly evolving industry

Practical constraints

  • Must work 100% onsite at El Segundo HQ
  • Must be willing to work extended hours and weekends

Requirements

Experience
5–20 years

Not disclosed in this posting: compensation, visa sponsorship.

Benefits

Equity/Stock Options Remote Work Health Insurance Parental Leave

Joblaze insights

  • Listed today — first seen on Joblaze October 15, 2026. Last confirmed on Radiant's careers page October 15, 2026.
  • SmartSheet appears in 0.7% of 951 comparable senior management roles in United States; Microsoft Project appears in 0.2% of 951 comparable senior management roles in United States.

Quick facts

Is the Senior Mission Planner, Supply Chain role remote?
No — this is an on-site role in El Segundo, CA, United States.
How much experience is required?
5–20 years of relevant experience for this Senior Mission Planner, Supply Chain role.
Where is the role based?
Radiant is hiring for this position in El Segundo, CA, United States.
What's the tech stack?
Joblaze extracted these technologies from the posting: Microsoft Project, SmartSheet.
What seniority level is this role?
Radiant targets senior candidates for this position.
Is this full-time or contract?
Full-time for this Senior Mission Planner, Supply Chain role at Radiant.

From the original posting

About the Role

Radiant is seeking an experienced Senior Master Scheduler to own risk assessment and master scheduling across the company. This is a key operations role. You will manage master project schedules that guide Radiant’s commitment and constraint management, and you will build and maintain long-term schedules grounded in sales forecasts and current capacity. You will interface with every level of leadership and act as the central link between Sales, Engineering, Procurement, Production, and Facilities. You will assess schedule risk across individual programs in the context of the full program, then make sure leadership sees it clearly and early.

Responsibilities & Duties

Operational Planning and Master Planning

  • Executive Communication: Present schedule status, risks, and tradeoffs to VPs and the C-suite.

  • Root Cause Analysis: Investigate and understand the root cause of schedule impacts. Assess risk across individual programs in light of the full program.

  • Program & Product Management: Assess schedule health in light of the full program and product lifecycle. Guide the schedule differently depending on the phase of the program and product.

  • New Product Integration: Work with ambiguous product and program definitions and coordinate across Engineering, Supply Chain, Manufacturing, and Sales. Bring an organized approach to complex data.

  • Schedule Creation & Management: Create and analyze schedules in Microsoft Project and Smartsheet. Combine schedules to assess critical path, dependencies, slack, and capacity. Drive detailed schedules for key activities.

Deliverables

  • Company-wide master schedule tied to sales forecasts and current capacity

  • Integrated schedules showing critical path, dependencies, slack, and capacity

  • Detailed schedules for key activities

  • Schedule risk assessments and root cause analyses for schedule impacts

  • Executive-level schedule updates for VP and C-suite audiences

Required Qualifications & Skills: (not in your content, so these are placeholders to confirm)

  • [5-20] years of relevant experience in master scheduling, program planning, or operations, preferably within manufacturing or technology sectors

  • Proficiency in Microsoft Project and Smartsheet

  • Strong analytical and organizational skills, with the ability to manage complex, interdependent schedules

  • Excellent cross-functional and executive communication skills

  • Comfort operating with ambiguity and building processes from scratch

Desired Qualifications & Skills:

  • Experience in a start-up or other rapidly evolving industry

Additional Requirements:

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

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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