Part-Time Operations Assistant - NYC Office Support

Flatiron Energy is developing and building grid scale standalone energy storage assets that integrate renewable energy onto the grid, replace fossil fuel plants, and increase grid reliability. Founded by a team of experienced energy storage experts, Flatiron has a demonstrated track record of developing critical infrastructure needed to achieve our reliability and energy climate goals. The team has deep experience in developing, constructing, and operating energy storage assets in wholesale markets.

Flatiron is a portfolio company of Hull Street Energy and has significant committed capital for its growth plans.

We are a growing company with a dynamic, fast-paced, challenging, creative, fun, start-up culture. The right candidate will be excited to help build the company from the ground up, recognizing the challenges and opportunities for growth inherent in such a role. The Flatiron team is passionate about fighting climate change while ensuring their projects have an equitable impact on surrounding communities.

Flatiron is only looking for candidates who resonate with our mission.

Title: Operations Assistant –
Part Time (15 hours per week, Tuesday & Thursday schedule)

Reports To: Operations Manager

Location: New York City (required).

Description: The Operations Assistant will support day‑to‑day office operations in our NYC office and ensure a clean, organized, and well‑functioning workplace. This role is highly hands‑on and detail‑oriented, with a focus on maintaining office standards, managing supplies and vendors, and supporting team and guest needs. The ideal candidate is proactive, reliable, and takes pride in creating a positive in‑office experience.

• Maintain overall office housekeeping and organization, including kitchen upkeep, coffee preparation, waste management, and general tidiness
• Manage office supply inventory (including snacks, beverages, and coffee), including tracking, ordering, and restocking
• Receive and distribute incoming mail and packages; coordinate outgoing shipments as needed
• Serve as the on‑site point of contact for vendor appointments, service providers, and deliveries
• Coordinate and communicate with office vendors (e.g., housekeeping, trash removal, IT) and building management
• Order and coordinate catering for team meetings and events
• Assist with guest visits, including preparation of conference rooms and general hosting support
• Provide administrative support to the Operations Manager, including ad hoc tasks and project assistance

• 1 year of administrative, office, or operations support experience preferred
• Comfortable working independently in a part‑time, in‑office role
• Proactive and self‑directed with a strong sense of ownership
• Excellent communication skills and comfort interacting with vendors and building staff
• Positive, team‑oriented attitude with a willingness to support a variety of office needs
• Ability to manage multiple small tasks efficiently and reliably
• Strong problem‑solving skills, resourcefulness, and creativity
• High level of organizational skills and attention to detail

• Job Type: Permanent, Part‑time
• Compensation: Competitive commensurate with experience