16 development intern jobs at 12 companies in Callahan, FL
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Business Development Intern - Fall 2026
Jacksonville, Florida, United States
$20/hrOnsiteMultiple Commitments Available
RF-SMART: Provides mobile warehouse management and inventory tracking software
Currently enrolled junior/senior in a degree program; strong written and verbal communication; Microsoft Office proficiency; experience with CRM (NetSuite) helpful; ability to research, prospect, and maintain CRM data.
RF-SMART: Provides mobile inventory and warehouse management software solutions.
0+ YOEWorking toward a degree in Computer Science/CS-related field; basic experience with C# and Visual Studio; strong communication; team oriented; willing to learn.
Development & Special Events Intern - Jacksonville
Jacksonville, Florida, United States
OnsitePart Time, Internship
Make-A-Wish Central & Northern Florida: Fulfills wishes for children facing critical illnesses.
Strong communication, organization, and writing skills; comfortable cold calling; attention to detail; self-starter able to work in fast-paced, collaborative environment.
Fincantieri Marine Repair: Maintains and repairs commercial and military maritime vessels.
8+ YOEBachelor's degree or equivalent; 8 years of business development/capture management experience in ship repair, shipbuilding, or maritime services; strong negotiation, proposal development, and Microsoft Office skills; FAR/DFARS knowledge preferred; domestic and international travel required.
RF-SMART: Provides mobile inventory and warehouse management software solutions.
Strong written communication, interpersonal, presentation, email and phone skills; proficient in Microsoft Office; highly organized, detail-oriented, and able to multitask; works independently.
YMCA of Florida’s First Coast: Provides community-based programs for youth, healthy living, and families.
Student or emerging professional seeking structured, hands-on internship. Must pass Level 2 background screening (FDLE & FBI fingerprint check). Interns placed in YMCA departments to support mission and develop professional competencies.
Undergraduate rising juniors/seniors available May 2026–May 2027; preferred data analytics/engineering background; hybrid availability 3 days weekly up to 28 hours and core hours 10AM–3PM; strong Excel, PowerBI, Power Automate skills.
Microsoft Excel, PowerBI, Power Automate, Microsoft Office
San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Miami or New York City or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Washington, D.C. or Ottawa or Toronto or Vancouver or Mexico City
$171k-$257k/yrHybridFull Time
Scribd: Subscription-based digital library for e-books, audiobooks, and documents.
7+ YOE7+ years product management; experience with developer tooling, AI platforms, or internal productivity tools; strong technical fluency; proven cross-functional leadership; ability to define strategy and roadmap.
Glynn County: Provides local government services to residents of Glynn County.
5+ YOEDevelop and manage county-wide operational review and internal controls programs; perform audits, risk assessments, financial and data analysis; prepare reports and recommendations; bachelor's degree and 5+ years experience required; CPA/CIA preferred.
Mayo Clinic: A non-profit academic medical center providing clinical healthcare services.
Bachelor's in dietetics/nutrition, ACEND internship, RDN credential within 3 months of hire; clinical nutrition experience preferred; ability to develop MNT, educate patients, and precept interns.
Mental Health Therapist (licensed/ Licensed Eligible)
Orange Park, Florida, United States
OnsiteFull Time, Part Time
Elite DNA Behavioral Health: Provides comprehensive outpatient mental and behavioral health services.
Master's degree required; licensed or license-eligible clinicians accepted; provides therapy, documents in EMR, develops treatment plans, supervises staff and interns; strong communication and clinical skills.
Step Up For Students: Administers state-approved K-12 educational scholarship programs in Florida.
10+ YOE10+ years experience and bachelor’s in accounting/finance; strong GAAP technical accounting, ERP experience, leading accounting teams, policy and internal control development, audit coordination, and communication skills.
Baillie Lumber: Produces and distributes premium hardwood lumber products worldwide.
Develop and maintain customer relationships in an assigned territory, generate leads, meet sales goals, negotiate prices and terms, prepare contracts, collaborate with internal teams, and pass background and drug screens.
Glynn County: Provides local government, public safety, and administrative services.
5+ YOEDevelop and administer county-wide operational review and internal controls program; conduct audits, risk assessments, financial and data analysis; 5+ years relevant experience; proficiency in GAAP, auditing standards, and advanced Microsoft Excel; CPA/CIA preferred; valid Georgia driver\u000a\u000alicense or ability to obtain.
White Oak Conservation: Saving endangered wildlife through breeding, research, and land stewardship.
5+ YOE2+ MgmtSupervisory role requiring expertise in animal husbandry, collection management, habitat design, record keeping, compliance, and collaboration with veterinary and education teams. BS in biology/animal science preferred or 5+ years animal care; 2+ years supervisory experience; valid driver’s license; ability to lift 50 lbs and work outdoors.