Executive Assistant

SewerAI

Executive Assistant supporting two co-founders at SewerAI, an AI-powered infrastructure management company. Managing schedules, travel, and office operations in a hybrid setup.

Posted 7/22/2026full-timeWalnut Creek • California • 🇺🇸 United StatesMid-LevelSenior💰 $90,000 - $100,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in managing complex calendars, coordinating travel logistics, and facilitating effective communication between executives and stakeholders. Proficient in handling confidential information and maintaining organization in a fast-paced, dynamic environment.

Highest-signal resume keywords

Executive Support ExperienceCalendar ManagementTravel CoordinationStrong Communication SkillsOrganizational Skills

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Calendar ManagementTravel CoordinationExpense ReportingMeeting CoordinationOffice Management

Soft Skills

Excellent JudgmentDetail-OrientedCalm Under PressureAbility to Juggle Competing PrioritiesComfortable with Ambiguity

Tools & Technologies

Google WorkspaceNotionCalendar Management PlatformsTravel Management PlatformsExpense Systems

Industry Keywords

C-Level SupportStartup EnvironmentFast-Paced EnvironmentConfidential InformationInternal and External Communication

About the role

Key responsibilities & impact

Manage complex, frequently-changing calendars for two co-founders, proactively resolving conflicts and prioritizing time against shifting business needs
Book and manage domestic and international travel, including itineraries, changes, and day-of issue resolution
Coordinate internal and external meetings end-to-end — scheduling, agendas, logistics, room/video setup, and follow-through on action items
Coordinate with home managers to flag prioritize and help manage at-home obligations against a very dynamic and demanding work schedule
Own light office management for the Walnut Creek office: supplies, vendor relationships, mail, seating/space needs, and general upkeep
Serve as a key point of contact between the founders and internal team, external partners, investors, and candidates
Prepare and organize materials for board meetings, investor updates, and leadership offsites
Handle expense reports and other administrative tasks with discretion and accuracy
Anticipate needs before they're asked — flagging conflicts, prepping context, and removing friction from the founders' day-to-day

Requirements

What you’ll need

3+ years of experience as an Executive Assistant supporting C-level or founder-level executives, ideally in a startup or fast-paced environment
Excellent judgment with confidential and sensitive information
Strong written and verbal communication — comfortable representing the founders in external-facing correspondence
Highly organized, detail-oriented, and able to juggle competing priorities without dropping things
Comfortable with ambiguity and last-minute changes; calm under pressure
Based in or near Walnut Creek, CA, and able to be in-office 2 days/week (with occasional flexibility for additional in-person needs)
Experience with tools such as Google Workspace, Notion, calendar/travel management platforms, and expense systems

Benefits

Comp & perks

Medical, Dental, Vision, Basic Life, 401(k), and more
Unlimited PTO
Tools and resources to support success
Competitive compensation with high-growth potential