Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Administrative Assistant II

$25.24 - $34.71 per hour
Full-time

Sierra Nevada Corporation

Are you a tech-savvy administrative professional looking for your next challenge? Join our dynamic team as an Administrative Assistant II and become a vital partner to our Director and Vice President-level leaders. In this role, you’ll support top executives by expertly managing complex calendars, coordinating meetings and travel, preparing impressive reports and presentations, and ensuring seamless day-to-day operations. Your proactive approach and organizational skills will contribute directly to our company’s success. The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR and aviation, it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation systems. Its end-to-end Command, Control, Computers, Communications and Intelligence, Surveillance & Reconnaissance (C4ISR) capabilities encompass design, integration, test, certification, ground/flight training and complete logistics support. IAS tailors solutions to customer cost, performance, and schedule requirements and designs to consistently exceed expectations – with an unrivaled record of on time and on (or under) budget deliveries. Responsibilities: Efficiently manage complex inquiries from both internal and external sources. Prepare, consolidate, and route detailed reports and presentations. Create, edit, and manage complex spreadsheets to support various administrative tasks. Prepare and submit expense reports and purchase requisitions. Maintain databases and ensure accurate data entry in compliance with company policies. Coordinate business meals, on-site meetings, and events, including all logistics. Provide advanced support to IT and Facilities for conference room and public area maintenance. Manage calendars for senior leaders, including meeting and travel arrangements. Edit, format, and send communications, presentations, and documents. Act as a liaison between executives and internal/external stakeholders. Handle high-level administrative tasks with a focus on business operations. Support onboarding and training for new employees. Organize team-building and employee engagement activities. Handle confidential information with discretion. Assist in project planning, execution, documentation, and reporting. Support budget planning and vendor management. Sit at the front desk, support visitor check-ins, and manage office supplies. Provide backup support to the administrative team as needed. Qualifications You Must Have: High school diploma or equivalent. 3+ years of relevant experience in office administration or administrative support. Proficient in Microsoft Office Suite (Word, Excel, Outlook, Teams, OneNote, SharePoint Online) and travel/expense platforms (e.g., Concur). General knowledge of administrative practices, including expense reporting, purchase requisitions, and coordinating meetings, events, and travel. Foundational knowledge of project management applications (e.g., Microsoft Project, Smartsheet) and ticketing systems (e.g., Service Now). Excellent communication, problem-solving, and organizational skills. Professional demeanor and ability to handle sensitive information with discretion. Qualifications We Prefer: Associate’s degree in Business Administration or related field. Experience in the Aerospace and Defense industry. Advanced knowledge of Workday or similar HRIS systems. Certifications such as PACE (Professional Administrative Certification of Excellence) or CAPM (Certified Associate in Project Management) are a plus. Experience with Concur Travel and Expense platform or other travel management systems. Experience working in a U.S. military or Department of Defense (DoD) environment. Essential Functions: Ability to lift up to 20 lbs regularly. Ability to sit or stand for extended periods. Proficiency with computers and office equipment. Manual dexterity for handling office supplies and equipment. Ability to work in an office environment. Ability to travel may be required. This posting will be open for application for a minimum of 5 days and may be extended based on business needs. Estimated Starting Salary Range: $25.24 - $34.71. Compensation varies depending on a wide array of factors, such as candidates' key skills, relevant work experience, and education/training/certifications. The disclosed range estimate may be adjusted for any applicable geographic differential associated with the location at which the position may be filled. SNC offers a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, tuition reimbursement, and more. IMPORTANT NOTICE: This position requires the ability to obtain and maintain a Secret U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use. Learn more about the background check process for Security Clearances. SNC is a global leader in aerospace and national security committed to moving the American Dream forward. We’re known and respected for our mission and execution focus, agility, and disruptive and rapid innovation. We provide leading edge technologies and transformative solutions that support our nation’s most critical security needs. If you are mission-focused, thrive in collaborative environments, and want to make our country stronger with state-of-the-art technologies that safeguard freedom, join our team! SNC is an Equal Opportunity Employer committed to an environment free of discrimination. Employment decisions are made based on merit without regard to race, color, age, religion, sex, national origin, disability, status as a protected veteran or other characteristics protected by law. SNC is a trusted global leader in aerospace and national security. Our innovative solutions enable connected protection through command, control and communications systems, as well as ISR, cyber, electromagnetic spectrum management, and other high capabilities for systems across all domains – sea, land, air, space and cyber. As a longstanding leader in defense technology, SNC is the optimum intersection of commercial, defense and non-traditional contractors. We are one of the only privately owned mid-tier A&D contractors and we pride ourselves on our ability to invest early and often to ensure mission success on or ahead of schedule. It’s part of our mission to always stay one step ahead; working on solutions today to solve the problems of tomorrow. Founded in 1963, SNC is owned by Chairwoman Eren Ozmen and CEO Fatih Ozmen.

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Administrative Assistant II in Englewood, CO vacancy
  • $35 - $39 per hour

     ...Within our Corporate Technical Services team located in Denver – Leprino is seeking an Administrative Assistant II to support our Global Engineering teams. This role keeps engineering work organized and moving by coordinating schedules, managing project documentation... 
    Suggested
    Hourly pay
    Local area

    Leprino

    Denver, CO
    3 days ago
  • $35 - $39 per hour

     ...Unit team located in Denver - Leprino is seeking an Admin Assistant II to move our organization to even larger levels of cheese...  ..., Directors, Managers, and department teams with day-to-day administrative coordination. Create, edit, and distribute reports, presentations... 
    Suggested
    Work at office
    Local area

    Leprino Foods

    Denver, CO
    4 days ago
  • The State of Colorado is looking for an Administrative Assistant II for the Bingo-Raffle Unit at the Colorado Department of State. This role involves supporting the licensing process and maintaining compliance with regulations. Candidates should have two years of relevant... 
    Suggested
    Remote job
    Flexible hours

    State of Colorado

    Denver, CO
    3 days ago
  • $26.15 - $39.23 per hour

     ...JR162382 Administrative Assistant II Location: This role requires associates to be in-office 1 day per week, fostering collaboration and connectivity, while providing flexibility to support productivity and work-life balance. This approach combines structured office... 
    Suggested
    Temporary work
    Work experience placement
    Work at office
    Local area
    Remote work
    1 day per week

    CareBridge

    Denver, CO
    4 days ago
  • $40k - $46.72k

     ...Patient Services Representative I-II – Urology, Highlands Ranch Attention customer service experts with a passion for team-centric...  ...secure environment for our faculty, staff, students, and visitors. to assist in achieving that goal, we conduct background investigations for... 
    Suggested
    Local area
    Immediate start

    Colorado Anschutz

    Littleton, CO
    a month ago
  • Office Administrator II Performance Objectives Greet and welcome visitors. Receive and transfer incoming calls in a professional manner....  ...Coordinate all building maintenance. Oversee Office Catering. Assist departments with various administrative tasks as needed.... 
    Work experience placement
    Work at office
    Local area

    Energy Acuity

    Denver, CO
    3 days ago
  • $63.15k - $90k

     ...participate in at least one in-person interview. This role serves as the central operational hub for the IT Department, ensuring administrative precision and seamless communication across a dynamic environment. You will solve the challenge of balancing complex executive... 
    Work at office
    Flexible hours

    EchoStar

    Englewood, CO
    1 day ago
  • $72.35k - $103.4k

     ...experience within the EchoStar ecosystem. Required Technical Skills: Prompt engineering and persona management for virtual assistants. Natural Language Processing (NLP) and Natural Language Understanding (NLU) configuration Data retrieval and interpretation... 
    Local area
    Flexible hours

    EchoStar

    Englewood, CO
    2 days ago
  • $84.76k - $129.5k

     ...within the power industry i.) AACE CST, or PMI Equivalent ii.) Working towards AACE CCP, CEP, PSP, PRMP, EVP, or PMI Equivalent...  ...Life & Accident Insurance ~ Disability Coverage ~ Employee Assistance Program (EAP) ~ Back-Up Daycare ~ FSA & HSA ~401(k) ~ Pre-... 
    Hourly pay
    Work experience placement
    Internship
    Local area
    Remote work
    Flexible hours
    3 days per week

    Sargent & Lundy

    Englewood, CO
    2 days ago
  • $118.02k - $180.31k

     ...preferably within the power industry i.) AACE CST, or PMI Equivalent ii.) Working towards AACE CCP, CEP, PSP, PRMP, EVP, or PMI...  ..., Vision Life & Accident Insurance Disability Coverage Employee Assistance Program (EAP) Back-Up Daycare FSA & HSA 401(k) Pre-Tax Commuter... 
    Hourly pay
    Work experience placement
    Local area
    Remote work
    Flexible hours
    3 days per week

    Sargent & Lundy

    Englewood, CO
    14 days ago
  • Energy Acuity is seeking an Office Administrator II in Denver, CO. The role includes duties such as greeting visitors, handling phone calls, and organizing office supplies. Candidates should have a High School Diploma or vocational education along with 3 to 5 years of... 
    Work at office

    Energy Acuity

    Denver, CO
    3 days ago
  • Office Administrator II At Enverus, we’re committed to empowering the global quality of life by helping our customers make energy affordable...  ...all building maintenance Oversee Office Catering. Assist departments w/various administrative tasks as needed. Parking... 
    Part time
    Work experience placement
    Work at office
    Local area

    Energy Acuity

    Denver, CO
    1 day ago
  • $18 - $22 per hour

     ...R360 Environmental Solutions , a Waste Connections company, is seeking a detail‑oriented Administrative Assistant to support our Denver, CO office (Zip Code - 80112) . This role is perfect for someone who enjoys keeping operations organized, supporting a busy team... 
    Work at office
    Local area

    Waste Connections

    Englewood, CO
    16 hours ago
  • $18 per hour

     ...effectively motivate others ~ Must be able to stand, bend, walk for long periods of time ~ Must be able to lift 25 pounds without assistance ~ Other duties as assigned ~ Reliable transportation ~ High school diploma or equivalent Palm Beach Tan is an... 
    Hourly pay
    Immediate start

    Palm Beach Tan

    Littleton, CO
    1 day ago
  • $40k - $46.72k

     ...Patient Services Representative I-II – Department of Psychiatry Attention customer service experts with a passion for team-centric care coordination in an outpatient setting. We need your caring and compassionate expertise to continue providing our patients with top... 
    Immediate start

    Colorado Anschutz

    Aurora, CO
    25 days ago
  • Energy Acuity is looking for an Office Administrator II in Denver, Colorado. This position involves greeting visitors, managing calls, maintaining office supplies, and providing administrative support. The ideal candidate has a high school diploma and 3-5 years of relevant... 
    Work at office

    Energy Acuity

    Denver, CO
    1 day ago
  • A public research university in Denver, Colorado, is seeking a Research Associate II to support projects focused on early neurodevelopment. The role involves conducting assessments with infants and young children, requiring 3+ years of experience in research settings,... 

    Colorado State University

    Denver, CO
    3 days ago
  • $55k - $70k

    Job Description Position Summary The Research Associate II will support multiple federally funded research projects focused on early...  ...populations; maintain fidelity to assessment protocols; ADOS‑2 administration preferred. Travel for Off‑Site Visits: Coordinate and complete... 
    Traineeship
    Live in
    Local area

    Colorado State University

    Denver, CO
    3 days ago
  • ECRC Research Associates I, II - Open Pool page is loaded## ECRC Research Associates I, II - Open Poolremote type: Fully in-person/on-sitelocations: Akron, COposted on: Posted Yesterdaytime left to apply: End Date: July 1, 2026 (30+ days left to apply)job requisition id... 
    Full time
    Contract work
    Live in
    Local area
    Weekend work

    Colorado State University

    Denver, CO
    3 days ago
  •  ...as may be required by the organization; (ii) refrain from conduct and statements...  ...Working Conditions: NA Area Office Administrator I Summary: This position provides...  .... Interact with area office assistant, area directors, area committee, volunteer... 
    Hourly pay
    Work at office

    Young Life

    Centennial, CO
    2 days ago
  • $145k - $165k

     ...boasts over 30 years of expertise in the power industry. We provide EPC (Engineering, Procurement, and Construction) services and assist in project development. Our experience spans various systems for utility and industrial facilities, including simple and combined cycle... 
    Daily paid
    Full time
    Contract work
    Temporary work
    Work experience placement
    For subcontractor
    Work at office
    Local area
    Flexible hours
    Shift work

    MasTec Industrial

    Centennial, CO
    11 hours ago
  •  ...Office Administrator / Receptionist Colorado Business CPA, LLC Greenwood Village, CO Full-time Now Hiring Colorado Business CPA,...  ...service you'll fit right in. What You'll Do Welcome and assist clients and visitors in person and by phone Maintain the reception... 
    Full time
    Work at office
    Immediate start
    Flexible hours

    Colorado Business CPA, LLC

    Englewood, CO
    3 days ago
  •  ...Description: ATN Health is currently assisting a local client, recruiting for an Administrative Assistant job in Denver Metropolitan Area. The Administrative Assistant job is a temp to hire opportunity. For instant consideration for the Administrative Assistant... 
    Temporary work
    Work at office
    Local area

    ATN Health

    Littleton, CO
    16 hours ago
  •  ...JOB DESCRIPTION: We are seeking a dedicated Administrative Assistant to support the Controller Vice President & the Controller leadership team. As the Administrative Assistant, you will: - Provide general correspondence, schedule meetings, make travel arrangements... 
    Work at office
    2 days per week

    PLANIT Group

    Littleton, CO
    3 days ago
  •  ...Administrative Assistant The Administrative Assistant facilitates the efficient operation of the assigned department by performing a variety of clerical and administrative tasks. Essential Duties & Responsibilities Provide high-level administrative support... 
    Work at office
    Shift work

    ISEC

    Greenwood Village, CO
    15 days ago
  • $19.29 - $22 per hour

     ...Administrative Assistant Kroenke Sports & Entertainment (KSE) is an American Sports and Entertainment holding company based in Denver, Colorado. KSE is committed to providing world class sports and entertainment for both live and broadcast audiences. We are the employer... 
    Hourly pay
    Temporary work
    Work at office
    Local area
    Worldwide
    Flexible hours

    Kroenke Sports & Entertainment

    Centennial, CO
    25 days ago
  • Amtap Logistics Team Member Program learning plan interface and coordination, learning plan compliance and revision control Classroom setup and logistics (can be a combination of classroom set up and computer set up for the training classes so needs to have IT background...
    Apprenticeship

    PLANIT Group

    Littleton, CO
    2 days ago
  • $53k - $65k

     ...Administrative Assistant Location: Centennial, Colorado Openings: 15 Salary Range: $53,000 - $65,000 Description ATN Health is currently assisting a local client, recruiting for an Administrative Assistant job in Denver Metropolitan Area. The Administrative... 
    Temporary work
    Work at office
    Local area

    ATN Healthcare

    Centennial, CO
    1 day ago
  • $19.45 - $28.76 per hour

     ...Overview Colliers Engineering & Design is seeking a proactive and detail-oriented Administrative Assistant to join our Denver, CO office. In this role, you'll provide essential administrative and office support to the business unit and team members while helping... 
    Hourly pay
    Temporary work
    Work at office
    Remote work

    Colliers Engineering & Design

    Centennial, CO
    9 days ago
  • $350k

     ...including park pass & registration sales, facility rentals, retail sales and Integrated Parks and Wildlife System. To act as an administrative assistant to the Park Manager(s) with an emphasis on accounting, coordinating paperwork for temporary hiring program, revenue... 
    Permanent employment
    Temporary work
    Work at office
    Monday to Friday
    Shift work
    Weekend work

    Colorado Department of Transportation

    Littleton, CO
    1 day ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Administrative Assistant II. Be the first to apply!