Senior Executive Assistant | Temp-to-Perm | Hybrid in NYC | Foundation

Senior Executive Assistant to Co-CEOs | Temp-to-Perm | NYC Hybrid

All potential applicants are encouraged to scroll through and read the complete job description before applying.

$50/hr temporary | $100,000–$125,000 permanent + benefits

Start: Early November 2026

Schedule: Full-time, 40 hours/week | Tuesday–Thursday onsite, Monday and Friday remote

TSS is seeking an experienced Executive Assistant to support the two co-CEOs and Chief of Staff of a private, mission-driven foundation in NYC. This is a temp-to-perm opportunity.

We're looking for someone who genuinely enjoys high-level, hands-on executive support and brings exceptional organization, judgment, and a strong customer service mentality to their work.

This is a busy, relationship-focused role that involves much more than managing calendars. The Executive Assistant will be an important partner to the executive office, helping anticipate needs, manage competing priorities, coordinate Board activities, and take on additional administrative and logistical responsibilities from the Chief of Staff.

The organization is navigating a period of strategic transition, so we're especially interested in candidates who have supported senior leadership through change and can bring consistency, flexibility, and a proactive approach.

This role is a TEMPORARY TO PERMANENT position through TSS. You would be employed and paid by our company for the temporary portion and working directly with the client. Then it would turn permanent and you would be employed directly by the client. Read more about this role and apply via our website.

What You'll Be Doing:

• Managing complex calendars and scheduling for two co-CEOs.
• Coordinating executive travel, itineraries, and expenses.
• Providing administrative and logistical support for Board and committee meetings.
• Working closely with the Chief of Staff to manage executive office priorities and coordination.
• Organizing leadership meetings, staff gatherings, and events.
• Building positive working relationships with staff, Board members, and external stakeholders.
• Anticipating needs, troubleshooting scheduling challenges, and keeping the details running smoothly.

What We're Looking For:

• 3+ years of high-level executive/senior leadership support experience and 5+ years of overall administrative support experience.
• Foundation or philanthropic organization experience strongly preferred.
• Experience supporting multiple senior executives, ideally co-CEOs, a big plus.
• Experience navigating organizational or leadership transitions highly desirable.
• Outstanding calendar management, organization, communication, and follow-through.
• A warm, responsive, service-oriented approach, paired with excellent judgment and discretion.
• Strong Google Workspace skills and comfort with administrative systems.
• Someone adaptable, proactive, detail-oriented, and comfortable working with different leadership styles.

This is a temp-to-perm opportunity, with consideration for permanent conversion after approximately three months.

Read the full job description and apply on our website.

About TSS:

At TSS, we specialize in creating meaningful connections between talented professionals and impactful organizations. Our expertise is particularly strong in foundations, non-profits, and mission-driven organizations, with services extending to for-profit businesses throughout the NYC metro region and across the nation. We staff for temporary, temp-to-perm, and direct hire roles, and put a strong emphasis on building relationships and paying attention to the details to help make placements that exceed expectations!

TSS proudly follows all equal opportunity employment policies and employs personnel without regard to race, creed, color, ethnicity, national origin, religion, sex, sexual orientation, gender expression, age, physical or mental ability, veteran status, military obligations, and marital status. xhyhwjd

Remote working/work at home options are available for this role.