Principal Human Resources Specialist at World Fuel Services (Las Vegas, NV)

| Las Vegas, NV
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Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the U.S. National Nuclear Security Administration (NNSA). Our MISSION is to help ensure the security of the United States and its allies by providing high-hazard experimentation and incident response capabilities through operations, engineering, education, field, and integration services and by acting as environmental stewards to the Site's Cold War legacy. Our VISION is to be the user site of choice for large-scale, high-hazard, national security experimentation, with premier facilities and capabilities below ground, on the ground, and in the air. (See for our unique capabilities.) Our 2,750+ professional, craft, and support employees are called upon to innovate, collaborate, and deliver on some of the more difficult nuclear security challenges facing the world today. In this environment, the best ideas need to be voiced and every opinion matters. As such, MSTS places great value on Diversity, Equity, and Inclusion and is committed to a diverse and equitable workforce, with an inclusive culture that values and celebrates the diversity of our people, talents, ideas, and perspectives.
  • MSTS offers our full-time employees highly competitive salaries and benefits packages including medical, dental, and vision; both a pension and a 401k; paid time off and 96 hours of paid holidays; relocation (if located more than 75 miles from work location); tuition assistance and reimbursement; and more.
  • MSTS is a limited liability company consisting of Honeywell International Inc. (Honeywell), Jacobs Engineering Group Inc. (Jacobs), and HII Nuclear Inc.

NNSS COVID-19 attestation requirements:


As a member of the Staff Relations Labor Relations team you will work closely with Employee Relations, Legal and Internal Audit. In this role, you will be communicating with Union Leaders and Management up to the Director level. Handle challenging and sensitive conversations while maintaining confidentiality at all levels. While responding to all issues in a timely manner.

Key Responsibilities
  • Conduct investigations on internal and external employee concerns and complaints.
  • Provide senior-level services in regarding all labor relations functions.
  • Work closely and collaborate with Union Leaders and Management up to the Director level to resolve complex issues and reach agreements.
  • Conduct investigations on internal and external employee concerns and complaints.
  • Knowledge of Project Labor Agreements/Collective Bargaining Agreements: Operating Engineers Local 12, Teamsters Local 631 Culinary Union 226, Paramedics and Firefighters and the construction trades (SNBTU).
  • Assist with grievances unions and ensure resolutions through proper processes.
  • Co-chair/lead in contract negotiations.
  • Review policies, procedures, agreements and instructions related to labor relations and advise management on those policies, procedures, and practices.
  • Required to multitask and respond to all issues and concerns including those from management, employees, contractors, and other sources in a timely manner.
  • Provide independent judgment to identify personnel, labor relations areas of concern, prepare responses, and provide recommendations.
  • Manage challenging and sensitive conversations with labor union personnel and MSTS employees up to Director level.
  • Maintain highest level of confidentiality of all information concerning employees.
  • Develop internal and external reports on investigations utilizing Association of Workplace Investigations (AWI) process.
  • Provide back up to the random drug-screening program.
  • Handle consequences of positive drug/alcohol screenings.
  • Interface with Legal, Internal Audit, and Employees Relations on issues.
  • Ability to cross-train and work with Employee Relations staff on investigations and contracts.
  • Remain informed and current on employment law changes in California, Nevada, New Mexico, Maryland, and other states when necessary.


  • Bachelor's degree in related field and at least 8 years' of professional level experience, or equivalent training and experience.
  • Preferred: Bachelor's degree in Human Resources or related field and at least eight years of professional level experience or equivalent training and experience.
  • Professional Human Resources (PHR) and (AWI) certification preferred.
  • Knowledge of Human Resource principles, Equal Opportunity law and National Labor Relations Board laws.
  • Knowledge of legal requirements that affect the Labor Relations Office.
  • Demonstrated ability to create and maintain highest levels of confidentiality when dealing with employee and management concerns/issues, proprietary information, and sensitive situations.
  • Adapt to changes in the work environment and deal with unexpected events.
  • Demonstrated experience as a lead in negotiations
  • Excellent interpersonal skills and ability to work with all levels of personnel.
  • Must be able to communicate orally and in writing with tact, diplomacy, and/or authority when necessary.
  • Detail-oriented and possess effective oral and written communication skills.
  • Ability to interview personnel, conduct research, assist with investigations, and provide investigative summery report to appropriate management
  • Exercise considerable judgment and independent discretion in establishing and maintaining positive working relationships internally and externally.Must be able to cope with conflicting deadlines, frequent interruptions, and multiple tasks.
  • Identify problems, gather and analyze information skillfully.
  • Independently apply and carryout policies and procedures within assigned area of responsibility.
  • The primary work location will be at the Losee Road facility in North Las Vegas, Nevada. Work at the Nevada National Security Site (located 65 miles northwest of Las Vegas, Nevada) is required in support of these functions.
  • Work schedule for this position will be 4/10's, Monday - Thursday (subject to change) with ability to work flexible hours.
  • Pre-placement physical examination, which includes a drug screen, is required. MSTS maintains a substance abuse policy that includes random drug testing.
  • Must possess a valid driver's license.

MSTS is required by DOE directive to conduct a pre-employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Applicants offered employment with MSTS are also subject to a federal background investigation to meet the requirements for access to classified information or matter if the duties of the position require a DOE security clearance. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause a clearance to be denied or terminated by DOE, resulting in the inability to perform the duties assigned and subsequent termination of employment.

In addition, Applicants for employment must be able to obtain and maintain a DOE Q-level security clearance, which requires U.S. citizenship, at least 18 years of age. Reference DOE Order 472.2, "Personnel Security". If you hold more than one citizenship (i.e., of the U.S. and another country), your ability to obtain a security clearance may be impacted.

Department of Energy Q Clearance (position will be cleared to this level). Reviews and tests for the absence of any illegal drug as defined in 10 CFR Part 707.4, "Workplace Substance Abuse Programs at DOE Sites," will be conducted. Applicant selected will be subject to a Federal background investigation, required to participate in subsequent reinvestigations, and must meet the eligibility requirements for access to classified matter. Successful completion of a counterintelligence evaluation, which may include a counterintelligence-scope polygraph examination, may also be required. Reference 10 CFR Part 709, "Counterintelligence Evaluation Program."

MSTS is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status or other characteristics protected by law. MSTS is a background screening, drug-free workplace.
More Information on World Fuel Services
World Fuel Services operates in the Energy industry. The company is located in Miami, FL. World Fuel Services was founded in 2022. It has 5001 total employees. It offers perks and benefits such as Flexible Spending Account (FSA), Disability Insurance, Dental Benefits, Vision Benefits, Health Insurance Benefits and Life Insurance. To see all 46 open jobs at World Fuel Services, click here.
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