Principal Specialist, Master Scheduler (Onsite)

RTX • Full-time • largo, Florida, United States of America • 3d ago

Date Posted: 2026-04-16Country: United States of AmericaLocation: US-FL-LARGO-382SR ~ 7887 Bryan Dairy Rd ~ BLDG 600Position Role Type: OnsiteU.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearanceSecurity Clearance Type: DoD Clearance: SecretSecurity Clearance Status: Active and existing security clearance required after day 1At RTX, the world largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. The Master Scheduler is responsible for developing, managing, and maintaining the Master Production Schedule (MPS) for a site, value stream, or key program within an Aerospace and Defense (A&D) environment. This role ensures the alignment of customer demand, internal capacity, material availability, and inventory targets across long- and short-term planning horizons. Operating at the intersection of planning, execution, and program management, the Master Scheduler plays a critical role in achieving on-time delivery, revenue goals, and customer satisfaction—while maintaining compliance with strict regulatory and contractual standards. What You Will Do

Create and maintain an 18-month rolling Master Production Schedule based on demand forecasts, firm orders, and internal requirements
Translate customer demand into executable production plans, balancing constraints such as capacity, labor, and materials
Incorporate make-to-stock, make-to-order, assemble-to-order, and engineer-to-order strategies into schedule logic
Establish and manage the MPS supply load across all value streams and programs
Own the supply plan and ensure alignment with the demand plan and financial targets
Support the Sales, Inventory, and Operations Planning (SIOP/S&OP) process by providing accurate, timely, and feasible schedules
Perform long-term capacity-to-build (CTB) analysis and scenario planning for pull-ins, customer commits, and late changes
Partner with Demand Planners to reconcile commit/request gaps and recommend changes to output plans
Define and manage product fulfillment strategies, inventory targets, and stocking policies for finished goods
Conduct target stock analysis and drive finished goods availability in line with program and business objectives
Support both revenue and non-revenue requirements (e.g., spares, rework, test inventory)
Monitor and respond to schedule exceptions such as material shortages, engineering changes, ECOs, and quality holds
Own short lead time simulations, supply recovery planning, and updates to the schedule based on real-time constraints
Maintain the Recommended Changes File for output plan modifications, and communicate changes in quantity and dollar impact
Support monthly and quarterly capacity reviews, ensuring assumptions are validated and actionable
Balance the rate plan across value streams or factory lines to optimize throughput and minimize bottlenecks
Evaluate the feasibility of new product ramps or high-mix schedules based on capacity, supplier readiness, and resource constraints
Coordinate with Engineering and Configuration Management to integrate ECOs, ECPs, and NPI builds into the master schedule
Schedule First Article Inspections (FAIs) and support ramp-up/ramp-down transitions
Align NPI timelines with customer validation requirements and production readiness
Track and report key KPIs including Schedule Adherence, Schedule Attainment, On-Time Delivery (OTD), and inventory accuracy
Provide visibility into schedule variances, risks, and recovery actions
Support leadership reporting on output plans (quantity/dollars) and deviations from the business plan, production plan, and shipment targets
Partner with Supply Chain and Procurement to ensure material availability aligns with the schedule
Provide early visibility of supply needs for long-lead or high-risk components
Proactively address shortages, expedite needs, and support hot parts resolution
Act as a key liaison between Operations, Program Management, Engineering, Finance, and Contracts teams
Provide accurate Estimated Completion Dates (ECDs) and maintain communication with stakeholders regarding schedule changes or risks
Participate in customer reviews, program meetings, and Integrated Product Teams (IPTs)
Ensure all scheduling activities are compliant with ITAR, FAR/DFARS, AS9100, and internal quality procedures
Maintain audit-ready schedule history and documentation to support DCMA, government, and customer audits Qualifications You Must Have
Typically requires a University Degree and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience
Prior experience in production scheduling
Prior experience manufacturing environment
Prior experience of ERPs, MRP, MPS, and SIOP principles Qualifications We Prefer
Bachelor's degree in Supply Chain, Operations, Business, Engineering, or related field
Prior experience in production scheduling, supply planning, or operations in an Aerospace & Defense
Excellent analytical, communication, and organizational skills
APICS/ASCM certification (CPIM, CSCP)
Experience with program-based manufacturing and contract deliverables
Strong working knowledge of configuration management and engineering change control
Proficiency in tools like Power BI, Tableau, Excel (pivot tables, data modeling)Proficiency with ERP systems (e.g., SAP, Oracle, IFS) and advanced planning tools
Ability to work with export-controlled and/or classified data under U.S. government regulations What We Offer Benefits Some of our competitive benefits packages include: 
Medical, dental, and vision insurance
Three weeks of vacation for newly hired employees
Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
Tuition reimbursement program
Student Loan Repayment Program
Life insurance and disability coverage
Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
Birth, adoption, parental leave benefits
Ovia Health, fertility, and family planning
Adoption Assistance         
Autism Benefit
Employee Assistance Plan, including up to 10 free counseling sessions
Healthy You Incentives, wellness rewards program
Doctor on Demand, virtual doctor visits
Bright Horizons, child and elder care services
Teladoc Medical Experts, second opinion program
And more!  Maybe eligible for relocation Learn More & Apply Now! Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customers succeed today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. The next chapter of our future as an aerospace company is here, and we are excited about what this means for our employees and customers! Get onboard the Collins Aerospace Operations team and play a part in managing our innovative products from inception to delivery. The Operations team continues to grow and aims to strengthen the connection of Manufacturing Operations, Supply Chain and Environment, Health & Safety (EH&S) across Collins Aerospace. In this dynamic environment, you will have the opportunity to network across our businesses and functions, all while improving the productivity, quality and efficiency of our operations worldwide. Please ensure the role type (defined below) is appropriate for your needs before applying to this role. Onsite*: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. At Collins, the paths we pave together lead to limitless possibilities. And the bonds we form – with our customers and with each other -- propel us all higher, again and again. Apply now and be part of the team that’s redefining aerospace, every day.

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms: Click on this link to read the Policy and Terms