32 development intern jobs at 27 companies in New Britain, CT
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Development Intern
North Haven, Connecticut, United States
OnsiteInternship
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.
Product Development Intern: Material Science (Part Time)
Chicopee, Massachusetts, United States
OnsiteTemporary, Part Time
Filtration Group: Manufactures high-performance air and liquid filtration systems.
Currently enrolled/recent graduate in textiles, material science, or polymer science; 3.0+ GPA; knowledge of nonwoven/textile materials and material characterization; strong analytical, communication, and safety awareness; proficiency with Excel, PowerPoint, Word, Teams.
Microsoft Excel, Microsoft PowerPoint, Microsoft Word, Microsoft Teams
Yale University: Provides higher education and conducts global academic research.
Bachelor's degree or equivalent; conduct regulatory research on 1,4-dioxane, compile state-specific databases, perform comparative analysis, prepare summaries and presentations, strong organizational, communication, and computer skills.
Venue Programming & Event Development Intern (Summer/Fall)
Hartford, Connecticut, United States
OnsiteInternship
FC Tulsa: Professional soccer team competing in the USL Championship.
Currently enrolled student eligible for college credit; available late July–November; able to work nights/weekends; strong organization, communication, and research skills; proficient in Microsoft Word, Excel, PowerPoint.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Canva
Global Development Lead, Internal Medicine, Sr. Director (non-MD)
Collegeville or La Jolla or Bothell or Pearl River or New York City or Cambridge or Groton or United Kingdom or Walton Oaks or Collegeville
$215k-$358k/yrHybridFull Time
PfizerNYSE: PFE: Develops and manufactures vaccines and medicines for global healthcare
8+ YOEPhD or PharmD; 8+ years in clinical development (Phase 1-3); expertise in weight management or internal medicine; strong leadership and communication.
Sr Manager – International Black Hawk Business Development
Stratford, Connecticut, United States
$151k-$267k/yrRemoteFull Time
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Proven experience in international business development, FMS/DCS processes, strategic planning, financial planning, customer engagement, and team leadership; ability to travel; strong communication skills.
Mar y Sol Mental Health Experts: Offers psychiatric and therapeutic care to children and adults.
Current undergraduate student (anticipated Spring 2027 graduation). Strong communication, organization, interest in healthcare, Microsoft Office or Google Workspace proficiency; no prior healthcare experience required.
Fridley or Tempe or Eatontown or Santa Rosa or Lafayette or Boulder or Plymouth or Mounds View or Irvine or North Haven or Memphis or Newton or Dexter or Santa Ana or Mansfield or Fort Worth or Minneapolis or Brooklyn Center or Jacksonville or Boston or Brooklyn Park
$27-$45/hrOnsiteFull Time
MedtronicNew York Stock Exchange: MDT: Develops and manufactures medical devices and digital health solutions.
Currently pursuing BS/MS in computer/software engineering or related with anticipated graduation 2027–2029; full-time internship availability June–Aug; U.S. work authorization required; 3.0 GPA preferred; experience with programming/projects preferred.
National Organization for Rare Disorders: Provides advocacy, research, and support for rare disease patients.
Current undergraduate or graduate student in HR, business, psychology, organizational development, or related field; eligible for academic credit or a university-sponsored internship; creative and proactive.
Cornell Cooperative Extension: Delivering research-based educational programs to New York State communities.
Part-time paid internship for at-sea data collection; fieldwork on vessels, light data entry; 24 hours/week; July–Sept; no relocation or visa sponsorship.
Data entry, Biological sampling, Marine field equipment
Common Ground: Operates an environmental charter school and urban farm.
Experience in development and communications, strong writing, content creation, donor stewardship, event support, ability to manage social media and train interns; flexible schedule including nights/weekends.
Bar Harbor or Ellsworth or Farmington or Sacramento or Augusta or Japan or China
$15-$31/hrOnsiteInternship
The Jackson Laboratory: Conducts genomic research and produces specialized laboratory mouse models.
Undergraduate degree expected; master’s or relevant experience desirable. Experience with statistical and machine learning methods, data mining, data curation, and computational neuroscience; strong communication skills.
Boston or South Portland or Princeton or New York City or Bedford or Newark or Cherry Hill or Parsippany or South Norwalk or Rocky Hill or Chelmsford
$21-$40/hrOnsiteMultiple Commitments Available
HNTB: Designs and manages large-scale transportation and infrastructure projects.
Must be enrolled in a related undergraduate or graduate program; current or previous HNTB intern required. Performs basic research, data collection, records maintenance, and assists in graphics and presentation development.
Fall 2026, Intern/Coop: Machine Learning Researcher
East Hartford, Connecticut, United States
$37k-$82k/yrHybridPart Time, Internship
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
1+ YOECurrently pursuing an MS or PhD in computer science, mathematics, or related engineering; 1+ year research and ML software development experience in Python; PyTorch or TensorFlow familiarity.
Python, PyTorch, TensorFlow, GPU cluster, large language models, LLM, Generative AI
Tucson or Newton or Westford or Albuquerque or Wheatfield or Brewster or Buffalo or Cleveland or Elmore or Lorain or Leesport or Reading or Lincoln or Milwaukee or Delta or Mayfield Heights
$15-$25/hrOnsiteInternship, Temporary
MaterionNYSE: MTRN: Manufactures advanced engineered materials and precision optical solutions.
Must be junior or higher enrolled in relevant STEM, business, or communications coursework; U.S. citizen or Permanent Resident (ITAR); curious, willing to learn, and able to work in team settings.
New York City or Boston or San Francisco or Hartford or Los Angeles or Philadelphia or Houston or Dallas or Charlotte or Milwaukee or Washington or Chicago or Atlanta or Seattle
$1k-$2k/wkHybridFull Time, Internship
Marsh McLennanNYSE: MRSH: Global professional services firm providing risk, strategy, and people solutions.
Undergraduate student (Class of 2028 or 2029) pursuing actuarial, math, statistics, STEM or business degree; minimum 3.5 GPA; strong analytical, communication, and problem-solving skills; interest in SOA/CAS/CFA; familiarity with Excel, R, Python, SQL, SAS, or VBA.
Baker Tilly: Provides audit, tax, and consulting services to business clients.
10+ YOE5+ MgmtBachelor's in accounting or related field required; CPA or CIA required; 10+ years risk advisory/internal audit experience; 5+ years supervisory experience; proven business development and practice leadership; ability to travel as needed.
Accelerated Leadership Program - Manufacturing Leadership
Danbury, Connecticut, United States
$82k/yrFieldFull Time
SchaefflerFrankfurt Stock Exchange: SHA0: Manufacturer of high-precision components for automotive and industrial applications.
Bachelor's in Engineering or Engineering Technology, 3.0 GPA minimum, two co-op/intern rotations, willingness to relocate every 6 months, authorized to work in the US without sponsorship.
Fairfield University: Private university providing undergraduate and graduate higher education programs.
7+ YOE7–10 years in higher education; master’s in student affairs or related field; experience supporting graduate/international students; program development and leadership; strong organizational and communication skills.
North Haven or Mansfield or Mounds View or Boston or Lafayette
$120k-$180k/yrOnsiteFull Time
MedtronicNYSE: MDT: Developing and manufacturing medical technologies and therapies globally.
7+ YOEBachelor's degree and 7+ years regulatory experience (or advanced degree with 5+ years). Experience with 510(k), FDA interactions, international registrations, labeling and promotional material review.