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349 development intern jobs at 236 companies in Fairfield, CT

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Development Intern
New York, New York, United States
HybridInternship
Center for Family Representation
Center for Family Representation: Provides interdisciplinary legal defense and social services for families.
Undergraduate or graduate student affiliated with an accredited program or paid fellowship; able to support fundraising, event planning, grant writing, donor stewardship, and CRM data hygiene; strong teamwork and organizational skills.
GiftWorks
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1mo
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Development Intern (Unpaid)
New York, New York, United States
HybridPart Time, Internship
International Rescue Committee
International Rescue Committee: Provides humanitarian aid and relief to people affected by conflict.
Enrollment in or recent graduation from a post-secondary institution (within 2 years) required for interns; internship supports fundraising, storytelling, events, prospecting, and grant assistance for IRC NYNJ.
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1w
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Development Intern
North Haven, Connecticut, United States
OnsiteInternship
BHcare
BHcare: Provides integrated mental health and domestic violence services.
Unpaid internship, minimum 10 hours/week. Pursuing relevant degree; strong communication, organization, and Microsoft Office skills; ability to support fundraising, donor relations, events, and marketing.
Microsoft Office
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2w
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Development Intern
Newark or New York
OnsiteInternship
American Lung Association
American Lung Association: Fights for lung health through research, education, and advocacy.
Must be working towards a bachelor’s degree, eligible for college credit, enthusiastic, reliable, strong writing and multitasking skills, and able to lift 25 lbs.
Microsoft Excel, Microsoft Outlook, Microsoft Word, Microsoft PowerPoint, OneDrive
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1w
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Membership Development Intern
New York, New York, United States
$17/hr HybridPart Time
The Leading Hotels of the World
The Leading Hotels of the World: Provides marketing, sales, and reservation services for independent hotels.
Proficiency in Microsoft Office, business-level English, strong organizational/project-management and analytical skills, ability to work independently and collaboratively in a global team; CRM familiarity preferred.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, CRM systems
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Business Development Intern
New York or Georgia or California or Turkey or Nigeria or Cape Town or South Africa
RemoteInternship, Full Time
Immigrant Invest
Immigrant Invest: A consultancy providing migration-related advisory and partnership development services.
Final-year student or recent graduate in business-related field; comfortable with CRMs (Salesforce, HubSpot, Pipedrive); professional English (C1); proactive, organized, and analytical; prior internship experience a plus.
Salesforce, HubSpot, Pipedrive, CRM
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Business Development Intern - Fall
New York, New York, United States
OnsiteInternship
Together Group
Together Group: Agency collective providing marketing services for luxury lifestyle brands.
Passion for PR/marketing for luxury/lifestyle/beauty, organized, creative, resourceful, confidentiality, experience with Microsoft Office 365, able to work onsite minimum 15 hours/week for academic credit.
Microsoft Office 365
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3mo
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Program Development Intern
New York, New York, United States
$20-$22/hr HybridInternship
Services for the UnderServed
Services for the UnderServed: Provides housing and support services for individuals with disabilities.
Enrolled in a master's (preferred) or undergraduate program; interest in nonprofit fundraising, program development, or food security; strong research, organization, and communication skills; ability to manage multiple deadlines.
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1mo
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Intern, Organizational Development
Secaucus, New Jersey, United States
$32-$35/hr HybridMultiple Commitments Available
Quest Diagnostics
Quest DiagnosticsNYSE: DGX: Provides clinical laboratory diagnostic testing and health information services.
Must be enrolled in a Master's or Doctoral program in I/O Psychology, Organizational Development, HR, Psychology or related; experience with Microsoft PowerPoint, Excel, SharePoint; interest in assessments, org design, and data synthesis.
Microsoft Office Suite, Microsoft PowerPoint, Microsoft Excel, Microsoft SharePoint, Hogan, DiSC, Korn Ferry
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Product Development Intern
New York, New York, United States
$17/hr HybridInternship
Dreamwear
Dreamwear: Designs and manufactures private label and licensed intimate apparel and sleepwear.
Currently enrolled in a 4-year bachelor\u0002s program in fashion merchandising, product development, or manufacturing; strong communication, time management, and Microsoft Office skills; ability to work in-office at least 2 days/week.
Microsoft Excel, Microsoft Word, Microsoft Outlook
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3mo
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New Business Development Intern
New York, New York, United States
RemoteInternship
DataCatalyst
DataCatalyst: Provides enterprise data management, governance, and monetization consulting services.
Pursuing a degree in business, marketing, sales, consulting, data analytics, economics, or related field; prior internship or coursework in relevant area; strong communication and remote-work skills.
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Youth Development Intern
Wading River, New York, United States
OnsiteAll Commitments Available
Little Flower Children and Family Services of New York
Little Flower Children and Family Services of New York: Providing foster care, adoption, and developmental disability support services.
Currently enrolled in a college program related to Social Work, Psychology, Human Services, Education, or related field; strong interpersonal skills; confidentiality; reliable and punctual.
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2w
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Business Development Intern
New York City, New York, United States
OnsiteMultiple Commitments Available
WOW Payments
WOW Payments: Provides merchant payment processing and business banking solutions.
Entry-level sales role requiring strong communication, interpersonal skills, self-motivation, organization, Microsoft Office and basic CRM proficiency; previous sales/customer service is a plus.
Microsoft Office, CRM
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2d
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Client Development Intern
New York City, New York, United States
$17/hr OnsiteInternship, Part Time
David Zwirner
David Zwirner: Global contemporary art gallery representing major artists and estates.
Comfortable working with large datasets, strong communication and organization, interest in contemporary art; must be New York, New Jersey, or Connecticut resident and able to commit ~3 months.
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3mo
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Business Development Intern – Summer/Fall 2026
New York City, New York, United States
$8k-$12k/mo OnsiteFull Time
Revise Robotics
Revise Robotics: Building automated robotic systems to refurbish used laptops.
Experience in sales, fundraising, or outreach; strong writing; interest in climate or digital equity; bonus: enterprise IT or sustainability exposure.
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1mo
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Corporate Development Intern (Fall 2026)
Los Angeles or New York
$25/hr OnsitePart Time, Internship
Houlihan Lokey
Houlihan LokeyNYSE: HLI: Provides global investment banking and financial restructuring advisory services.
Junior or senior bachelor’s student in finance/accounting/economics; basic financial modeling; strong Excel, PowerPoint, Word skills; analytical, written and verbal communication; self-starter; interest in investment banking or corporate development.
Salesforce, Pitchbook, Microsoft Excel, Microsoft PowerPoint, Microsoft Word
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1mo
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Intern / VIE – People Development & Culture
New York, New York, United States
$25-$30/hr OnsiteInternship
LVMH
LVMHEuronext Paris: LVMH: Global designer and retailer of premium luxury goods.
Recent graduate with degree in HR/Organizational Development or related field; strong organizational and communication skills; ability to manage multiple priorities and interest in talent development.
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1mo
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Corporate Development Intern (Fall 2026)
Los Angeles or New York
$25/hr OnsitePart Time, Internship
Houlihan Lokey
Houlihan LokeyNYSE: HLI: Global investment bank providing financial advisory and restructuring services.
Must be a junior or senior pursuing a bachelor's (preferably Finance, Accounting, or Economics); basic financial modeling, Excel/PowerPoint/Word proficiency; strong communication; internship experience preferred; interest in investment banking or finance.
Salesforce, PitchBook, Microsoft Excel, Microsoft PowerPoint, Microsoft Word
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1mo
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Creative Development Intern (Fall 2026)
New York, New York, United States
OnsiteInternship, Part Time
Magnet Media
Magnet Media: Strategic creative studio providing digital storytelling and content solutions
Enrolled college student eligible for credit; pursuing a related degree; portfolio required; strong written and verbal skills; familiarity with Google Slides and Adobe Creative Suite; available EST and able to commit 3 days/week (Sep 14–Dec 18, 2026).
Google Slides, Adobe Illustrator, Adobe Photoshop, Adobe InDesign
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1mo
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Business Development & Sales Engineering Intern (6 months)
Barcelona or London or New York City or Asia or Africa
HybridFull Time, Internship
AudioStack
AudioStack: AI infrastructure for automated audio production and synthetic voice synthesis.
Internship supporting GTM, market research and technical sales; English fluency required; multilingual (Asian language or Arabic) preferred; comfortable with APIs, demos, and client engagement; available to work on-site in Barcelona.
APIs
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