49 Results for

Intern Jobs in Holbrook, NY

Jobs

New!

Bohemia, NY1 day ago

$20–$25 Per Hour

The primary role of an intern is to perform technical work within their functional area of study of Electrical Engineering, but may also include special projects that utilize basic engineering skills not solely tied to their degree program. For more than 50 years, Power Device Corporation (PDC) has been recognized as a world leader in the design and manufacture of high-reliability Connectivity, Power, and Control solutions for the Aerospace, Defense, and Space industries.

Woodbury, NY30+ days ago

CDM Smith’s Automation and Instrumentation division consists of staff of various disciplines including process, chemical, and electrical engineering which allows us to bring a wide range of knowledge to each project. We provide career opportunities that span a variety of disciplines and geographic locations, with projects that our employees plan, design, build and operate as diverse as the needs of our clients.

East Farmingdale, NY30+ days ago

$18–$22 Per Hour

Founded in 1951 to meet the special severe service valve requirements of the United States Nuclear Navy, Target Rock is today the premier supplier of highly engineered, valves and related products to both the U.S. Navy nuclear fleet and the global nuclear power generation industry. Over 95 years of growth, Curtiss-Wright is an integrated, market-facing global diversified industrial company and remains a technology leader through this legacy of innovation.

East Farmingdale, NY30+ days ago

$18–$20 Per Hour

Over 95 years of growth, Curtiss-Wright is an integrated, market-facing global diversified industrial company and remains a technology leader through this legacy of innovation. Agency partners must be invited to participate in a search by our_ _Talent Acquisition Team (TA_COE@curtisswright.com)_ _and have signed terms in place prior to any submittal.

East Farmingdale, NY30+ days ago

$20–$22 Per Hour

Interns are requested to assist the Nu-Torque Engineering Team in completing assignments related to Assembly and Test of Actuators, as well as supporting Qualification Testing for actuation development programs. If you require accommodation due to a disability at any time during the recruitment and/or assessment process, please contact Talent Acquisition (TA_COE@curtisswright.com) and we will make all reasonable efforts to accommodate your request.

Melville, New York30+ days ago

$18–$22 Per Hour

About Leviton: At Leviton, we build what's next to light, power, and connect everyday spaces, from electrical to lighting, to data networks, and energy management. With over 115 years of history, Leviton develops thoughtful solutions that help make its customers' lives easier, safer, more efficient, and more productive.

East Farmingdale, NY30+ days ago

$18–$22 Per Hour

Bay Shore, New York30+ days ago

$20–$38 Per Hour

Who We Are: Lennox (NYSE: LII) Driven by 130 years of legacy, HVAC and refrigeration success, Lennox provides our residential and commercial customers with industry-leading climate-control solutions. Learning and Development: Access workshops, training sessions, and resources to level up your skills and expand your knowledge.

Garden City, NY13 days ago

With expertise in industrial, commercial, mixed-use, and residential real estate, SimpleCITI operates at the intersection of capital deployment, operational execution, and long-term value creation. The ideal candidate is confident on the phone, persistent in outreach, and capable of sourcing high-quality opportunities through platforms and direct broker relationships.

Garden City, NY13 days ago

With expertise in industrial, commercial, mixed-use, and residential real estate, SimpleCITI operates at the intersection of capital deployment, operational execution, and long-term value creation. The role will be primarily focused on industrial and multifamily real estate, evaluating a steady flow of off-market and marketed opportunities that align with our buy box.

Bay Shore, New York30+ days ago

$19–$31 Per Hour

New!

Bohemia, NYToday

$22–$26 Per Hour

For more than 60 years, Data Device Corporation (DDC) has been recognized as a world leader in the design and manufacture of high-reliability Connectivity, Power, and Control solutions for the Aerospace, Defense, and Space industries. The IT Intern will support the Information Technology team by assisting with documentation of legacy systems, engineering licenses, and applications while gaining hands-on experience in a professional IT environment.

New!

Melville, New York2 days ago

$18–$22 Per Hour
Intern

Qualifications: Strong written, verbal, analytical, and interpersonal skills RF design, RF testing, coding VBA in Microsoft Excel, hand tools and machining equipment experience are desired but not required . With over 115 years of history, Leviton develops thoughtful solutions that help make its customers' lives easier, safer, more efficient, and more productive.

Stamford, CT30+ days ago

Full-time

Our focus is on providing engineering services that transform diverse data into well-governed, high-value data assets built on advanced data platforms on the cloud underpinned with security and high quality like Snowflake, AWS, Databricks, Azure based systems. The U.S. Food and Drug Administration has authorized versions of PMI's IQOS electronically heated tobacco devices and Swedish Match's General snus as Modified Risk Tobacco Products and renewal applications for these products are presently pending before the FDA.

Stamford, CT30+ days ago

Full-time

The U.S. Food and Drug Administration has authorized versions of PMI's IQOS electronically heated tobacco devices and Swedish Match's General snus as Modified Risk Tobacco Products and renewal applications for these products are presently pending before the FDA. Students pursuing a bachelor's degree in business administration, Marketing, Psychology, Communications or a related field during the 2025-2026 school year AND returning to the program after completion of the internship.

Holtsville, NY30+ days ago

The component team supports program teams and the NPI BOM Resiliency Scorecard initiative byproviding Product Lifecycle Analysis (PLA) of supplier components with high, medium, low and unknown reports at each phase gate to enable product team to have a clean bill of health prior to product release. We are committed to providing our employees with a benefits program that is comprehensive and competitive – including healthcare, wellness, inclusion networks, and continued learning and development offerings.

Melville, NY30+ days ago

The IMM Pharmacy Intern is responsible for supporting our interdisciplinary quality improvement intervention efforts, completing telephonic medication reviews, answering drug information questions, creating patient-facing educational material, and contributing to professional education efforts. An IMM Pharmacist Intern enhances the reputation of AHF by positively impacting the quality of care to our patients, supporting our pharmacy teams, and collaborating with other departments to improve healthcare metrics and quality markers across AHF.

Stamford, Connecticut30+ days ago

Melville, New York30+ days ago

$18–$22 Per Hour
Intern

The Human Resources Intern will support the Corporate HR team by assisting with ongoing projects, administrative tasks, and initiatives that contribute to the overall employee experience. About Leviton: At Leviton, we build what's next to light, power, and connect everyday spaces, from electrical to lighting, to data networks, and energy management.

Smithtown, NY9 days ago

Interns will gain hands-on experience in school operations, staff collaboration, curriculum oversight, and administrative tasks under the mentorship of experienced school leaders. Children of America is offering a leadership-focused internship for college students in Early Childhood Education.

Smithtown, NY9 days ago

Under the guidance of a Lead Teacher and School Director, interns will gain classroom leadership experience, assist with curriculum planning, and support child development in a licensed childcare setting. Children of America is seeking college students in Early Childhood Education for a hands-on internship.

Norwalk, CT30+ days ago

Under supervision, delivers safe, direct care or support services in alignment with the intern designated role (e.g., Patient Care Technician, Patient Access Liaison, Environmental Services Associate, Patient Transporter, Unit Secretary, Medical Practice Patient Representative). This internship provides hands-on exposure, skill-building, and career exploration to prepare individuals especially young adults for future employment in healthcare.

Hauppauge, NY30+ days ago

Company: Schultheis & Panettieri, LLPPosition: Summer Intern-Staff AuditorJob Location: Hauppauge, NY & Floral Park, NYSalary Range: 20/hour. We are a growing midsize CPA firm specializing in the audits of labor unions and their related fringe benefit funds.

Roslyn, New York12 days ago

A member of Catholic Health, St. Francis is consistently recognized by U.S. News & World Report as a national leader for Cardiology & Heart Surgery, as well as for Gastroenterology & GI surgery, U.S. News rates St. In addition to the estimated base pay provided, Catholic Health offers generous benefits packages, generous tuition assistance, a defined benefit pension plan, and a culture that supports professional and educational growth.

New!

Garden City, NY2 days ago

$15–$20
Temporary

Students gain a better appreciation for the pressures that affect decision-making in todays healthcare environment and are able to identify additional skills they will need to better prepare them for a rewarding career in health care administration. NYU Langone Hospital—Long Island is a 591-bed university-affiliated medical center, which offers sophisticated diagnostic and therapeutic care in virtually every specialty and subspecialty of medicine and surgery.

New!

Garden City, NY2 days ago

$15–$20 Per Hour

New!

Melville, New York2 days ago

$18–$20 Per Hour
Intern

Responsibilities: Position requires strong desire to pursue marketing career where candidate learns and identifies customer needs (product, pricing, delivery, & communications) and is able to develop marketing materials targeted at specific sales channels and customers (field sales, distribution, end user). The Marketing Intern will report to the Senior Manager of Product Marketing and will support the development and implementation of several marketing programs and initiatives, including collecting market research and data and drafting copy for various deliverables to help execute our marketing strategies.

Melville, New York30+ days ago

$18–$24 Per Hour
Intern

Westhampton Beach, NY30+ days ago

Temporary

As a Camp Counselor, you will be an active participant in all camp activities and will assist your Camp Director with a variety of daily tasks, all with the goal of creating a memorable and meaningful camp experience for your campers. We partner with over 230 private clubs all over the country to implement traditional-style day camps for elementary-aged children.

Bohemia, NY30+ days ago

You’ll support the marketing department in preparing, setting up, and representing our brand at weekend events—fairs, expos, and community gatherings across Long Island. Currently pursuing or recently graduated in Marketing, Communications, or a related field (preferred but not required) .

East Farmingdale, NY30+ days ago

$18–$20 Per Hour

Founded in 1951 to meet the special severe service valve requirements of the United States Nuclear Navy, Target Rock is today the premier supplier of highly engineered, valves and related products to both the U.S. Navy nuclear fleet and the global nuclear power generation industry. Learning and Development Opportunities I Referral Program I Competitive Pay I Recognition I Inclusive & Supportive Culture (https://careers.curtisswright.com/en/who-we-are/) *.

Stamford, CT30+ days ago

Full-time

The U.S. Food and Drug Administration has authorized versions of PMI's IQOS electronically heated tobacco devices and Swedish Match's General snus as Modified Risk Tobacco Products and renewal applications for these products are presently pending before the FDA. Since 2008, PMI has invested $12.5 billion globally to develop, scientifically substantiate and commercialize innovative smoke-free products for adults who would otherwise continue to smoke with the goal of transitioning legal-age consumers who smoke to better alternatives.

Fairfield, CT8 days ago

Deliver quality, educational instruction to elementary and middle school-aged students in a class and one-on-one environment from the provided curriculum for STEM topics includingAI - Artificial Intelligence,Coding, Robotics, Minecraft, Roblox, Game Design, Video Production for YouTube, STEM & Medicine, 3D Modeling, All-Girls STEAM, Science, Digital Art, Graphic Design, Filmmaking, Digital Animation, and more. Lavner Education, one of the world's leading EdTech companies for kids, powers the Lavner Camps, Tech Revolution, Lavner IQ, and Lavner Fitness brands, offering year-round camps, classes, tournaments, and online tutoring to kids worldwide.

West Hempstead, NY30+ days ago

Our acclaimed program provides an energetic, enjoyable, and age-suitable introduction to the fantastic game of soccer by providing classes, camps, and clinics held in schools, community centers, and local parks. This role offers an exciting opportunity for a current students and recent grads to gain hands-on experience in sports business operations and make a direct impact on a thriving youth sports organization.

Ronkonkoma, NY30+ days ago

This internship is a great opportunity for a student interested in marketing, communications, journalism, public relations, or digital media to gain hands-on experience while supporting a mission-driven organization. Options for Community Living, Inc. is committed to helping Long Island's most vulnerable families and individuals live healthier, more stable, and productive lives.

Norwalk, CT30+ days ago

You’ll have direct impact by helping transform raw data into actionable insights, improving documentation and structure across workflows, and contributing to scalable systems that support our continued growth. This role exists to strengthen our internal processes by bringing clarity to complex datasets, improving reporting workflows, and reducing manual effort through smart automation.

Norwalk, CT30+ days ago

Industry Differentiator: Known for our flagship brand, Gorilla Grip, we combine creativity with data-driven insights to deliver obsession-worthy products. You won’t just be observing—you’ll be contributing meaningful work, learning how different teams partner together, and building a strong understanding of how decisions are made across the business.

New!

Calverton, New York2 days ago

$18–$19 Per Hour
Intern

Logistics/Operations Intern Responsibilities: Diverse responsibilities will include analytics and administrative support to improve reporting accuracy and operational visibility, including: Collect, validate, and reconcile delivery/operations data from internal systems and spreadsheets; identify gaps and coordinate corrections with stakeholders. This is a hands-on learning role supporting operational reporting and analytics by collecting, organizing, and analyzing data to improve visibility, efficiency, and day-to-day decision-making.

Greenwich, CT30+ days ago

Founded in 1926, Greenwich Country Day School is a family school where innovative teaching is encouraged as teachers model and foster a love of learning, challenge and inspire children toward academic excellence, and cultivate students’ interests and talents outside of the classroom. Some of these will include conducting observations, developing behavioral plans, consulting with teachers, providing counseling, supporting students with academic plans/needs, and completing screenings.

Melville, New York30+ days ago

$18–$24 Per Hour
Intern

With over 115 years of history, Leviton develops thoughtful solutions that help make its customers' lives easier, safer, more efficient, and more productive. About Leviton: At Leviton, we build what's next to light, power, and connect everyday spaces, from electrical to lighting, to data networks, and energy management.

Melville, New York30+ days ago

$18–$20 Per Hour
Intern

With over 115 years of history, Leviton develops thoughtful solutions that help make its customers' lives easier, safer, more efficient, and more productive. You will collaborate with cross-functional teams across the company and engage with Leviton’s customers to help strengthen and sustain performance against key compliance metrics.

Garden City, New York28 days ago

Stifel is home to approximately 9,000 individuals who are currently building their careers as financial advisors, research analysts, project managers, marketing specialists, developers, bankers, operations associates, among hundreds more. Built on a simple premise of safeguarding our clients’ money as if it were our own, coined by our namesake, Herman Stifel, our success is intimately tied to our commitment to helping families, companies, and municipalities find their own success.

Bridgeport, Connecticut30+ days ago

The RN provides care that: * Establishes and maintains a therapeutic relationship with the patient and family encompasses an understanding and integration of cultural and diversity into practice * Includes communicating and working collaboratively with the patient, family and health care team members * Includes respecting the patient's values, preferences, expressed needs and knowledge of the healthcare situation in holistic data collection, in formulating health care outcomes and in the evaluation process. As an integral member of the Yale New Haven Health System (YNHHS) healthcare team, the Registered Professional Nurse (RN) upholds the YNHHS mission, vision, values and strategic initiatives to provide the highest level of patient centered care.

Stamford, CT30+ days ago

Make outbound calls to potential clients to build relationships and identify business opportunities. Utilize the Internet and AI tools to research companies that fit the ideal client profile.

RIVERHEAD, New York30+ days ago

The jobs listed are examples of the typical kinds of positions that Costco may hire for when openings exist. Under the supervision of a registered pharmacist, dispenses prescription medications in a high-volume pharmacy.

Bridgeport, Connecticut30+ days ago

Melville, NY26 days ago

Full-time

Essential skills include debugging, understanding communication protocols (I2C, SPI, UART, TCP/IP/UDP), and utilizing tools like Multimeters & Oscilloscopes. Provides support to engineering projects involving the analysis, research, design, development, fabrication, and testing of devices or systems.

Holtsville, NY30+ days ago

Qualifications: Minimum Qualifications: + Current enrollment in an undergraduate/graduate degree program in Mechanical Engineering, Computer Engineering, Electrical Engineering, Manufacturing Engineering, Industrial Engineering or similar . You have opportunities to learn and lead at a forward-thinking company, defining your path to a fulfilling career while channeling your skills toward causes that you care about – locally and globally.

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Intern Jobs in Holbrook, NY

Jobs

Engineering InternPower Device Corporation

Automation Engineering Intern (Summer 2026!)CDM Smith

Welding Engineering InternCurtiss-Wright Corporation

Manufacturing Engineering InternCurtiss-Wright Corporation

Mechanical Engineering Intern - NTACurtiss-Wright Corporation

Mechanical Engineering Intern (Summer)Leviton Manufacturing

Project Engineer InternCurtiss-Wright Corporation

Engineer InternLennox International

Commercial Real Estate Sourcing InternSimpleCITI

Commercial Real Estate Underwriting InternSimpleCITI

Accounting InternLennox International

IT InternData Device Corporation

Intern, Electrical Engineering (Year-Round)Leviton Manufacturing

Data Science Summer InternPhilip Morris International U.S.

Events Summer InternPhilip Morris International U.S.

2026 Summer Intern (US) - Component EngineerZebra Technologies

Pharmacist InternAIDS Healthcare Foundation

IT, Data Warehouse Summer InternBerkley

Intern, Human Resources (Year-round)Leviton Manufacturing

School Director InternChildren of America

Lead Teacher InternChildren of America

Academy for Career Readiness InternNorthwell Health

Summer Intern 2027 -Staff AuditorSchultheis & Panettieri LLP

Pharmacy Intern-PDCatholic Health

Student Intern - Ambulatory Care Garden City/Per DiemNYU Langone Health

Student Intern - Ambulatory Care Garden City/Per DiemNYU Langone Medical Center

Marketing Intern (Year-Round)Leviton Manufacturing

Sales Operations Intern (Year-round)Leviton Manufacturing

Summer Day Camp Counselor-InternKE Camps

Marketing InternRapid Home Service Group

Co-op InternCurtiss-Wright Corporation

eCommerce Summer InternPhilip Morris International U.S.

Paid STEM Instructor/Intern - Summer PositionLavner Education

Sports Business Operations InternSuper Soccer Stars

Spring 2026 Marketing & Social Media InternOptions for Community Living, Inc.

Data Analyst Intern - Sourcing & ComplianceGorilla Commerce

Graphic Design InternGorilla Commerce

Logistics/ Operations InternRiverhead Building Supply Corp.

School Psychology Intern, Grades N-12Greenwich Country Day School

Intern, IT Support Services (Summer)Leviton Manufacturing

Intern, Environmental Compliance (Year-Round)Leviton Manufacturing

Branch InternStifel

Registered Nurse Anesthetist Intern; Registered NurseYale New Haven Health

Marketing Analyst InternCMIT Solutions of Hartford & Stamford

RX Grad InternCostco Wholesale Corporation

Registered Nurse Anesthetist Intern; Registered Nurse- Bridgeport, CTYale New Haven Health

Engineering Co-OpNESC Staffing LLC

2026 Summer Internship (US) - Supply Chain EngineeringZebra Technologies

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