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LI-Jobs

Long Island Nonprofit job listings and mission driven work opportunities.

Jul 21, 2026

Finance & Operations Director — Seatuck Environmental Association

Finance & Operations Director — Seatuck Environmental Association

Build the financial and operational backbone of a growing Long Island wildlife nonprofit | Seatuck Environmental Association | West Sayville, NY

Seatuck
Seatuck

LI-Jobs-Operations

LI-Jobs

Jul 21, 2026

Guest Experience Assistant — Heckscher Museum of Art

Guest Experience Assistant — Heckscher Museum of Art

A welcoming front-of-house role at this beloved Huntington art museum | Heckscher Museum of Art, Huntington, NY

Heckscher Museum of Art
Heckscher Museum of Art

LI-Jobs-Operations

LI-Jobs

Jul 17, 2026

Planned Giving Officer

Planned Giving Officer

Shape the future of guide and service dog programs through strategic philanthropy | Guide Dog Foundation, Smithtown, NY

Guide Dog Foundation
Guide Dog Foundation

LI-Jobs

LI-Jobs-Development

Jul 9, 2026

Guide Dog Program Manager

Guide Dog Program Manager

Lead the training department at one of the nation's most respected guide dog organizations | Guide Dog Foundation, Smithtown, NY

Guide Dog Foundation
Guide Dog Foundation

LI-Jobs-Operations

LI-Jobs

Jul 8, 2026

Director of Executive Communications — Stony Brook University

Director of Executive Communications — Stony Brook University

The DEC will be a senior communications strategist and trusted advisor to the president involved in designing and implementing a communications strategy aligned with Stony Brook University’s mission and priorities. | Stony Brook, NY

Stony Brook University
Stony Brook University

LI-Jobs

LI-Jobs-Marketing

Jul 2, 2026

Guest Services Associate — Planting Fields Foundation

Guest Services Associate — Planting Fields Foundation

Be the friendly face that welcomes every visitor to a 409-acre Gold Coast estate | Part-Time | Oyster Bay, NY

Planting Fields Foundation
Planting Fields Foundation

LI-Jobs-Operations

LI-Jobs

Jul 1, 2026

Garden Attendant (Part-Time, Seasonal) — North Shore Land Alliance

Garden Attendant (Part-Time, Seasonal) — North Shore Land Alliance

Part-time weekend role at one of Long Island's most beautiful public gardens | Through October 27, 2026 | Humes Japanese Stroll Garden, Mill Neck, NY

North Shore Land Alliance
North Shore Land Alliance

LI-Jobs-Operations

LI-Jobs

Jun 30, 2026

Customer Service Representative — North Shore Animal League America

Customer Service Representative — North Shore Animal League America

Be the first face future pet owners meet — a customer service role helping families find their perfect match at the world's largest no-kill rescue organization. | Port Washington, NY

North Shore Animal League America
North Shore Animal League America

LI-Jobs-Operations

LI-Jobs

Jun 25, 2026

Events Coordinator — North Shore Animal League America

Events Coordinator — North Shore Animal League America

Plan and execute fundraising events, including the Annual Gala, at the world's largest no-kill animal rescue organization. | Port Washington, NY

North Shore Animal League America
North Shore Animal League America

LI-Jobs-Operations

LI-Jobs

Jun 23, 2026

Workforce Development Coordinator — United Way of Long Island

Workforce Development Coordinator — United Way of Long Island

Support Long Island's workforce development programs and connect residents to careers in clean energy and skilled trades — bilingual English/Spanish required. | Deer Park, NY

United Way of Long Island
United Way of Long Island

LI-Jobs-Operations

LI-Jobs

Jun 17, 2026

Administrative Assistant- Peconic Land Trust

Administrative Assistant- Peconic Land Trust

Provide day-to-day administrative support to the President and Vice President helping conservation of what makes Long Island unique and viable. | June 17, 2026 | Southampton, NY

Peconic Land Trust
Peconic Land Trust

LI-Jobs-Operations

LI-Jobs

Jun 17, 2026

Change Manager — Stony Brook University

Change Manager — Stony Brook University

Lead enterprise-wide transformation at Long Island's largest employer — a senior change management role at Stony Brook University. | Stony Brook, NY

Stony Brook University
Stony Brook University

LI-Jobs-Operations

LI-Jobs

Jun 16, 2026

Seasonal Groundskeeper​​​​‌‍​‍​‍‌‍‌​‍‌‍‍‌‌‍‌‌‍‍‌‌‍‍​‍​‍​‍‍​‍​‍‌​‌‍​‌‌‍‍‌‍‍‌‌‌​‌‍‌​‍‍‌‍‍‌‌‍​‍​‍​‍​​‍​‍‌‍‍​‌​‍‌‍‌‌‌‍‌‍​‍​‍​‍‍​‍​‍‌‍‍​‌‌​‌‌​‌​​‌​​‍‍​‍​‍‌‍​‌‍‌‌​​‍‍‌​​‌‍‌‌‌‍​‌‍‌‍‍‌‍‍‌‌‍​‌‍​‌‍​‌‌‍‍‌‍‌​‌‌​‌​‍‌‌‌‌​‌‌​​‍‍‌‍‌​‍‌‍‌​‍‌‍‍‌‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‌‍‌‌‌‍‌​‌‍‍‌‌‌​​‍‌‍‌‌‍‌‍‌​‌‍‌‌​‌‌​​‌​‍‌‍‌‌‌​‌‍‌‌‌‍‍‌‌​‌‍​‌‌‌​‌‍‍‌‌‍‌‍‍​‍‌‍‍‌‌‍‌​​‌‌‍​‌​‍​​‌‌‌‍‌‍‌‍​‌‌‍​​​​​‍‌​‍‌​‍​​‌‌‌‍‌‌​​​‍‌​‌​​‌​‌‍​‌​‌​‍‌​‍​​​‌‍​‍‌‍​‌​‍‌​​‌‌‍​‌‍​‍​​‌​‌‍‌‍​​​‌‌‍​‌‌‍​​​‌‍‌‍‌‍​‌​‍‌‌​‌‍‌‌​​‌‍‌‌​‌‌‍‍‍‌‍‌‍​‍​‍‌​​‌‍​‌‌‌​‌‍‍​​‌‌‌​‌‍‍‌‌‌​‌‍​‌‍‌‌​‌‍​‍‌‍​‌‌​‌‍‌‌‌‌‌‌‌​‍‌‍​​‌‌‍‍​‌‌​‌‌​‌​​‌​​‍‌‌​​‌​​‌​‍‌‌​​‍‌​‌‍​‍‌‌​​‍‌​‌‍‌‍​‌‍‌‌​​‍‍‌​​‌‍‌‌‌‍​‌‍‌‍‍‌‍‍‌‌‍​‌‍​‌‍​‌‌‍‍‌‍‌​‌‌​‌​‍‌‌‌‌​‌‌​​‍‍‌‍‌​‍‌‍‌​‍‌‍‌‍‍‌‌‍‌​​‌‌‍​‌​‍​​‌‌‌‍‌‍‌‍​‌‌‍​​​​​‍‌​‍‌​‍​​‌‌‌‍‌‌​​​‍‌​‌​​‌​‌‍​‌​‌​‍‌​‍​​​‌‍​‍‌‍​‌​‍‌​​‌‌‍​‌‍​‍​​‌​‌‍‌‍​​​‌‌‍​‌‌‍​​​‌‍‌‍‌‍​‌​‍‌‍‌‌​‌‍‌‌​​‌‍‌‌​‌‌‍‍‍‌‍‌‍​‍​‍‌‍‌​​‌‍​‌‌‌​‌‍‍​​‌‌‌​‌‍‍‌‌‌​‌‍​‌‍‌‌​‍‌‍‌​​‌‍‌‌‌​‍‌​‌​​‌‍‌‌‌‍​‌‌​‌‍‍‌‌‌‍‌‍‌‌​‌‌​​‌‌‌‌‍​‍‌‍​‌‍‍‌‌​‌‍‍​‌‍‌‌‌‍‌​​‍​‍‌‌- Peconic Land Trust

Seasonal Groundskeeper​​​​‌‍​‍​‍‌‍‌​‍‌‍‍‌‌‍‌‌‍‍‌‌‍‍​‍​‍​‍‍​‍​‍‌​‌‍​‌‌‍‍‌‍‍‌‌‌​‌‍‌​‍‍‌‍‍‌‌‍​‍​‍​‍​​‍​‍‌‍‍​‌​‍‌‍‌‌‌‍‌‍​‍​‍​‍‍​‍​‍‌‍‍​‌‌​‌‌​‌​​‌​​‍‍​‍​‍‌‍​‌‍‌‌​​‍‍‌​​‌‍‌‌‌‍​‌‍‌‍‍‌‍‍‌‌‍​‌‍​‌‍​‌‌‍‍‌‍‌​‌‌​‌​‍‌‌‌‌​‌‌​​‍‍‌‍‌​‍‌‍‌​‍‌‍‍‌‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‌‍‌‌‌‍‌​‌‍‍‌‌‌​​‍‌‍‌‌‍‌‍‌​‌‍‌‌​‌‌​​‌​‍‌‍‌‌‌​‌‍‌‌‌‍‍‌‌​‌‍​‌‌‌​‌‍‍‌‌‍‌‍‍​‍‌‍‍‌‌‍‌​​‌‌‍​‌​‍​​‌‌‌‍‌‍‌‍​‌‌‍​​​​​‍‌​‍‌​‍​​‌‌‌‍‌‌​​​‍‌​‌​​‌​‌‍​‌​‌​‍‌​‍​​​‌‍​‍‌‍​‌​‍‌​​‌‌‍​‌‍​‍​​‌​‌‍‌‍​​​‌‌‍​‌‌‍​​​‌‍‌‍‌‍​‌​‍‌‌​‌‍‌‌​​‌‍‌‌​‌‌‍‍‍‌‍‌‍​‍​‍‌​​‌‍​‌‌‌​‌‍‍​​‌‌‌​‌‍‍‌‌‌​‌‍​‌‍‌‌​‌‍​‍‌‍​‌‌​‌‍‌‌‌‌‌‌‌​‍‌‍​​‌‌‍‍​‌‌​‌‌​‌​​‌​​‍‌‌​​‌​​‌​‍‌‌​​‍‌​‌‍​‍‌‌​​‍‌​‌‍‌‍​‌‍‌‌​​‍‍‌​​‌‍‌‌‌‍​‌‍‌‍‍‌‍‍‌‌‍​‌‍​‌‍​‌‌‍‍‌‍‌​‌‌​‌​‍‌‌‌‌​‌‌​​‍‍‌‍‌​‍‌‍‌​‍‌‍‌‍‍‌‌‍‌​​‌‌‍​‌​‍​​‌‌‌‍‌‍‌‍​‌‌‍​​​​​‍‌​‍‌​‍​​‌‌‌‍‌‌​​​‍‌​‌​​‌​‌‍​‌​‌​‍‌​‍​​​‌‍​‍‌‍​‌​‍‌​​‌‌‍​‌‍​‍​​‌​‌‍‌‍​​​‌‌‍​‌‌‍​​​‌‍‌‍‌‍​‌​‍‌‍‌‌​‌‍‌‌​​‌‍‌‌​‌‌‍‍‍‌‍‌‍​‍​‍‌‍‌​​‌‍​‌‌‌​‌‍‍​​‌‌‌​‌‍‍‌‌‌​‌‍​‌‍‌‌​‍‌‍‌​​‌‍‌‌‌​‍‌​‌​​‌‍‌‌‌‍​‌‌​‌‍‍‌‌‌‍‌‍‌‌​‌‌​​‌‌‌‌‍​‍‌‍​‌‍‍‌‌​‌‍‍​‌‍‌‌‌‍‌​​‍​‍‌‌- Peconic Land Trust

A part-time, seasonal job opportunity to assist with landscape maintenance at Bridge Gardens | June 16, 2026 | Bridgehampton, NY

Peconic Land Trust
Peconic Land Trust

LI-Jobs-Operations

LI-Jobs

Jun 15, 2026

Network Relations Compliance Coordinator - Long Island Cares

Network Relations Compliance Coordinator - Long Island Cares

The Network Relations Compliance Coordinator is primarily responsible for maintaining member agency data within the organization’s database, supporting agency compliance efforts, and conducting agency site visits. | June 5, 2026 | Hauppauge, NY

Long Island Cares
Long Island Cares

LI-Jobs-Operations

LI-Jobs

Jun 11, 2026

Warehouse CDL Driver - Long Island Cares

Warehouse CDL Driver - Long Island Cares

The warehouse driver operates our food bank vehicles and performs warehouse functions in a computerized environment. | June 11, 2026 | Hauppauge, NY

Long Island Cares
Long Island Cares

LI-Jobs-Operations

LI-Jobs

Jun 10, 2026

Philanthropy Manager - Long Island Cares

Philanthropy Manager - Long Island Cares

The Philanthropy Manager maintains a portfolio of Individual Donors and develops and maintains a research, cultivation, ask and stewardship process to move donors to higher level giving. | June 10, 2026 | Hauppauge, NY

Long Island Cares
Long Island Cares

LI-Jobs

LI-Jobs-Development

Jun 9, 2026

Bilingual Education Coordinator - Long Island Children's Museum

Bilingual Education Coordinator - Long Island Children's Museum

This role is responsible for planning and implementing museum programs and community partnerships that serve the needs of LICM visitors and their caregivers. | June 09, 2026 | Garden City, NY

Long Island Children's Museum
Long Island Children's Museum

LI-Jobs-Operations

LI-Jobs

Jun 9, 2026

Director of Government Relations & Advocacy - Long Island Cares

Director of Government Relations & Advocacy - Long Island Cares

The Director of Government Relations & Advocacy leads Long Island Cares’ advocacy, public policy, and government relations efforts at all levels to advance legislative priorities related to our work on Long Island. | June 08, 2026 | Hauppauge, NY

Long Island Cares
Long Island Cares

LI-Jobs

LI-Jobs-Development

Jun 8, 2026

CSFP Inventory Coordinator - Island Harvest

CSFP Inventory Coordinator - Island Harvest

Island Harvest is looking for Food Program Inventory Coordinator for their older adult food programs. | June 7, 2026 | Melville, NY

Island Harvest
Island Harvest

LI-Jobs-Operations

LI-Jobs

Jun 7, 2026

Veteran Programs Coordinator - Island Harvest

Veteran Programs Coordinator - Island Harvest

Island Harvest is looking for a military veteran with social services experience to help run our veteran programs. | June 7, 2026 | Melville, NY

Island Harvest
Island Harvest

LI-Jobs-Operations

LI-Jobs

Jun 6, 2026

Nutrition Coordinator - Island Harvest

Nutrition Coordinator - Island Harvest

Nutrition Coordinator will work with Island Harvest’s Nutrition Pathways program to provide nutrition education, counseling, and workshops to food insecure clients at one of our partner community-based health centers. | June 5, 2026 | Melville, NY

Island Harvest
Island Harvest

LI-Jobs-Operations

LI-Jobs

Jun 4, 2026

Development Manager - Heckscher Museum of Art

Development Manager - Heckscher Museum of Art

The Development Manager is responsible for growing and retaining our donor database, cultivating meaningful relationships with donors and patrons, producing a vibrant calendar of programs and events that bring our mission to life. | June 04, 2026 | Huntington, NY

Heckscher Museum of Art
Heckscher Museum of Art

LI-Jobs

LI-Jobs-Development

May 31, 2026

Museum Guard - Heckscher Museum of Art

Museum Guard - Heckscher Museum of Art

The Museum Guard role involves report writing, equipment setup, and minor janitorial tasks. Courteous, tactful public and coworker interaction, physical stamina, visual acuity, and good communication skills are required. | May 31, 2026 | Huntington, NY

Heckscher Museum of Art
Heckscher Museum of Art

LI-Jobs-Operations

LI-Jobs

May 30, 2026

Associate Land Steward- Peconic Land Trust

Associate Land Steward- Peconic Land Trust

Assoc. Land Steward focuses on the ecological health of our preserves, the monitoring of changing landscapes, collaborative management of restoration projects, and the physical upkeep of public lands. | May 30, 2026 | Southampton, NY

Peconic Land Trust
Peconic Land Trust

LI-Jobs-Operations

LI-Jobs

May 29, 2026

Assoc. Director of Development - The Nature Conservancy

Assoc. Director of Development - The Nature Conservancy

ADoD for Long Island is will be a part of the Development leadership team for NY and will be instrumental in elevating the fundraising and relationships across Long Island. | May 29, 2026 | Cold Spring Harbor

The Nature Conservancy (LI)
The Nature Conservancy (LI)

LI-Jobs

LI-Jobs-Development

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