Office Assistant/Field Marketer

Antithesis is a well-funded deep tech company headquartered in Northern Virginia, focused on building autonomous software reliability and testing products. They are seeking an organized and proactive Office/Administrative Assistant to manage daily office operations while gaining exposure to marketing activities, particularly event coordination.

Responsibilities

• Maintain a tidy, welcoming office environment, including stocking snacks and drinks
• Act as the main point of contact for vendors and building/facilities to ensure smooth daily operations
• Coordinate meetings and travel arrangements for team members and interview candidates when needed
• Help manage conference/Zoom room setups for meetings and interviews
• Support basic onboarding logistics for new employees (desk setup, welcome materials, office introductions, etc.)
• Help plan and support monthly marketing and community events hosted in our office (meetups, small workshops, etc.)
• Assist with event logistics: invitations, RSVPs, name tags, materials, and day-of coordination
• Capture light content from events (photos, notes, quotes) for potential use in blogs, social posts, or internal recaps
• Partner with marketing on brand presence in the office (signage, swag organization, event boards)
• Support simple marketing operations tasks such as organizing contact lists, tracking event attendance, and preparing basic follow-up materials

Skills

• Recent college graduate or early-career candidate with interest in marketing and operations
• Strong organizational and time management skills; you're the kind of person who likes checklists and follow-through
• Comfortable using Google Workspace (or similar tools) and willing to learn new tools quickly
• Clear, professional written and verbal communication skills
• Friendly, approachable, and able to build good working relationships across the team
• Ability to multitask and prioritize in a fast-paced environment
• A proactive mindset: you notice what needs to be done and take initiative
• Experience helping run events (on campus, clubs, internships, etc.)
• Coursework or projects related to marketing, communications, or business

Benefits

• Competitive salary package.
• Opportunities for professional development and growth, including exposure to marketing projects.
• Supportive, inclusive, and highly collaborative team environment.
• The chance to learn how a deep tech startup operates from the inside.

Company Overview