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Executive Assistant, Sales & Agent Development

Provide high-touch executive support to customer-facing leaders in a fast-paced AI company.

Location
New York, NY
Compensation
Not disclosed
Level
senior
Type
full time · On-site

Posted by employer 4 days ago

First seen on Joblaze 3 days ago

Last verified on the company career page 1 day ago

Apply at Sierra → Save job Scanned from sierra.ai

What you'll build

  • Manage complex calendars, meetings, travel, and expenses
  • Coordinate customer meetings and executive briefings
  • Prepare materials and develop agendas for meetings
  • Plan and execute team events
  • Establish and improve administrative systems

Must have

  • 5+ years of Executive Assistant or similar strategic support experience
  • Ability to support multiple senior leaders simultaneously
  • Experience supporting technical, product, or engineering leaders
  • Exceptional attention to detail
  • Excellent organizational and time-management skills
  • High integrity and discretion

Nice to have

  • Experience in a fast-growing, in-person start-up environment
  • Experience working with C-suite executives
  • Experience managing complex travel and executive events

Practical constraints

  • Willingness to work on-site in San Francisco four days per week

Requirements

Experience
5+ years

Not disclosed in this posting: compensation, visa sponsorship.

Benefits

Fertility and family building benefits through Carrot Retirement plan dependent on country of employment Flexible (unlimited) paid time off Free alphorn lessons Medical, Dental, and Vision benefits for you and your family Lunch, as well as delicious snacks and coffee to keep you energized Life Insurance and Disability Benefits Parental Leave Discretionary benefit stipend giving people the ability to spend where it matters most

Joblaze summary

The Executive Assistant for Sales & Agent Development at Sierra plays a crucial role in providing high-level support to multiple senior leaders, managing their complex schedules, travel, and meeting preparations. This position requires strong organizational skills and proficiency in tools like Google Workspace and Slack, as well as the ability to navigate a fast-paced environment. Ideal candidates will have over five years of experience in executive support, particularly in technical or customer-facing roles, and should be adept at building relationships across various teams. Sierra emphasizes a collaborative culture, making this role suitable for those who thrive in a dynamic, in-person set

Joblaze insights

  • Listed 3 days ago — first seen on Joblaze October 29, 2026. Last confirmed on Sierra's careers page October 31, 2026.

Quick facts

Is the Executive Assistant, Sales & Agent Development role remote?
No — this is an on-site role in New York, NY.
How much experience is required?
At least 5 years of relevant experience for this Executive Assistant, Sales & Agent Development role.
Where is the role based?
Sierra is hiring for this position in New York, NY.
What seniority level is this role?
Sierra targets senior candidates for this position.
Is this full-time or contract?
Full-time for this Executive Assistant, Sales & Agent Development role at Sierra.

From the original posting

What you'll do

  • Serve as a trusted partner to several customer-facing leaders across Sierra’s Sales and Agent Development organization, providing comprehensive, high-touch executive support.

  • Proactively manage complex calendars, meetings, travel, and expenses across multiple leaders, balancing internal priorities with customer commitments.

  • Coordinate customer meetings, executive briefings, and external engagements, ensuring each interaction is thoughtfully prepared and executed.

  • Anticipate scheduling conflicts, changing needs, and competing priorities, resolving issues independently and keeping commitments moving forward.

  • Coordinate domestic and international travel, with careful attention to itineraries, accommodations, agendas, logistics, and preparation.

  • Partner with leaders and their teams to make meetings effective by preparing materials, developing agendas, tracking action items, and coordinating follow-ups.

  • Collaborate closely with Executive Assistants and cross-functional partners across Sierra to coordinate priorities and ensure alignment across the organization.

  • Build strong working relationships with teams across product, engineering, operations, and other functions.

  • Support recruiting coordination, team operations, and other administrative needs as the organization grows.

  • Plan and execute team events, including leadership meetings, off-sites, hackathons, and team travel.

  • Establish and continuously improve administrative systems and processes that support multiple leaders and a rapidly scaling organization.

  • Handle sensitive information, technical roadmaps, personnel matters, and strategic communications with confidentiality and discretion.

What you'll bring

  • 5+ years of Executive Assistant or similar strategic support experience.

  • Demonstrated ability to support multiple customer-facing senior leaders simultaneously while adapting to different communication styles, priorities, and working preferences.

  • Experience supporting technical, product, or engineering leaders in a fast-paced environment.

  • Strong customer orientation and the ability to interact with customers and external stakeholders with professionalism, responsiveness, and sound judgment.

  • Exceptional attention to detail and a proactive mindset, with a commitment to creating polished and seamless experiences for leaders, customers, and internal partners.

  • Excellent organizational and time-management skills, with the ability to shift priorities quickly while remaining accurate and proactive.

  • Proven ability to operate independently, anticipate needs, and make sound judgment calls on behalf of leadership.

  • Strong relationship-building skills and the ability to partner effectively with cross-functional teams and external stakeholders.

  • High integrity and discretion when handling confidential or sensitive information.

  • Advanced proficiency with Google Workspace and Slack, along with the ability to learn new tools quickly.

  • Willingness and ability to work on-site in San Francisco four days per week.

Even better...

  • Experience in a fast-growing, in-person start-up environment.

  • Experience working with C-suite executives.

  • Experience working within a dual, floating, or team-based Executive Assistant structure.

  • Experience managing complex travel, executive events, and high-touch on-site logistics.

Our values

  • Trust: We build trust with our customers with our accountability, empathy, quality, and responsiveness. We build trust in AI by making it more accessible, safe, and useful. We build trust with each other by showing up for each other professionally and personally, creating an environment that enables all of us to do our best work.

  • Flexible (unlimited) paid time off

  • Life insurance and disability benefits

  • Retirement plan dependent on country of employment

  • Parental leave

  • Fertility and family building benefits through Carrot

  • Free alphorn lessons

Standard company text repeated across Sierra's postings is omitted here.

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