Mirrai Careers
Resume BuilderCareer Test
InsightsPricing
Get Started Free
Jobs/Office Assistant

Office Assistant

antithesis

Vienna, VA, USA Full-time Posted 2w ago
Apply on company site
ABOUT ANTITHESIS We are a well-funded deep tech company headquartered in Northern Virginia, building a suite of autonomous software reliability and testing products. Our team is collaborative, highly technical, and customer-focused. We prioritize the long-term in our structure, our products, and our relationships. As we scale, we are looking for an organized and proactive Office / Administrative Assistant to help keep our operations running smoothly. ABOUT THE OFFICE ASSISTANT POSITION We are seeking a highly organized and detail-oriented Office Assistant to support our team with daily administrative and operational tasks. The ideal candidate will be a problem-solver with excellent communication skills and the ability to manage multiple tasks effectively. As an Office Assistant, you will play a vital role in maintaining a clean, safe, and well-organized office environment that fosters productivity and comfort for all employees. Your responsibilities will include helping manage office supplies to ensure essential items are always available, restocking office snacks, and assisting with the planning of company events, to name a few. Through your attention to detail and proactive approach, you will help create a welcoming, efficient, and enjoyable workplace culture. KEY RESPONSIBILITIES * Ensure the office environment is clean, safe, and conducive to productivity. * Manage office operations, including ordering kitchen and office supplies. * Be a liaison for building-related issues and oversee maintenance and repair requests for office infrastructure. * Assist in event planning for company meetings, team outings, and celebrations. * Help maintain and organize office facilities, supplies, and equipment. * Handle deliveries, shipping swags, etc. * Assist with scheduling, calendar management, and coordinating meetings when requested. KEY SKILLS AND EXPERIENCE * Previous experience in an administrative or office support role preferred. * Strong organizational and multitasking abilities. * Excellent written and verbal communication. * Proficiency in Google Suite and other relevant software. * Ability to work independently and adapt to a fast-paced, evolving environment. * Strong attention to detail and problem-solving skills. * Positive attitude and ability to work collaboratively with a team.   Note: this role will require that you drive to run some errands

See how well you match this job

Upload your resume and we’ll score your fit for this role and 6 similar roles — then tailor your CV to it with AI. Free, no credit card.

Check your match

Similar jobs

  • Office Administrator

    bjakcareer

    Remote
  • Administrative Assistant

    atomicmachines

    Santa Clara, California
  • Office Administrator

    phil

    Hebron, KY$48k–$52k
  • Office Coordinator

    foresite-labs-fl2024-006

    San Diego$42k–$52k
  • Executive Assistant to the CEO

    outersignal

    Remote
  • Office Administrator, Part-Time (Redwood City, CA)

    attain

    Redwood City, CA
Apply on company site

Want more roles like this? Browse fresh jobs or tailor your resume with AI.

Mirrai Careers

AI-powered career platform: build resumes, match jobs, and plan your career.

Product

  • All Tools
  • Resume Builder
  • Career Test
  • Pricing

Legal

  • Privacy Policy
  • Terms of Service
  • Fair Use Policy

Company

MIRRAI CHAT LTD (Company No. 16403306)

71-75 Shelton Street, Covent Garden

London, WC2H 9JQ, UNITED KINGDOM

[email protected]

© 2026 Mirrai Careers. All rights reserved.