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20 software internship jobs at 17 companies in Connecticut

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Full-Stack Software Engineer Internship (Summer 2027)
Stamford or Houston
OnsiteInternship, Full Time
Castleton Commodities International
Castleton Commodities International: Invests in and manages global energy and commodity assets.
Currently pursuing a BS/MS in CS/Engineering/MIS or related, strong Python skills (Pandas, NumPy), familiarity with Git, cloud (AWS), Kubernetes, Kafka, Snowflake, DevOps tools and data visualization (Streamlit).
Python, Pandas, NumPy, AWS, Snowflake, Kubernetes, Kafka, Git, Docker, Helm, CI/CD, Streamlit
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2mo
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System and Software Engineer (MBSE / SysML) – Aerospace
East Hartford, Connecticut, United States
HybridMultiple Commitments Available
Sopra Steria
Sopra SteriaEuronext Paris: SOPR: Provides digital transformation consulting and information technology services.
3+ YOEBachelor's in engineering; experience with MATLAB/Simulink for embedded software; experience with Cameo Systems Modeler; SysML; DO-178C; aerospace domain.
MATLAB, Simulink, Cameo Systems Modeler
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2mo
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Principal Engineer Software - Storage (Chronosphere)
Burbank or Denver or Chicago or Austin or Jacksonville or Hartford or Bridgeport or Seattle or Boston or New York City
$147k-$238k/yr RemoteAll Commitments Available
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade network, cloud, and endpoint security software.
Design and build scalable backend services for high-volume telemetry data; strong backend skills; cloud infra experience; API design; mentorship.
Go, Java, Python, Rust, AWS, GCP, Azure, REST, gRPC, GraphQL
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2mo
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2027 Front Office Development Engineering Summer Analyst
Greenwich, Connecticut, United States
OnsiteInternship
AQR Capital Management
AQR Capital Management: Quantitative investment firm managing traditional and alternative strategies.
0+ YOEProficiency in Python and Java; knowledge of design patterns, SOA/microservices, cloud; strong testing, communication; finance knowledge is a plus.
Python, Java, AWS, Microservices, Containers, Cloud
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5d
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Technology Services Intern - Per Diem
Hartford, Connecticut, United States
OnsiteInternship
Connecticut Children's
Connecticut Children's: Provides specialized pediatric healthcare and medical research services.
Currently enrolled or recently completed IT/technical or high school trade program; basic hardware, OS, software and peripheral experience; customer service, troubleshooting, and communication skills.
Microsoft Windows, Apple/macOS, ChromeOS
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1w
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Acoustics Intern
Stamford, Connecticut, United States
HybridInternship
TLC Engineering Solutions
TLC Engineering Solutions: Providing high-performance engineering design and consulting services for buildings.
Current bachelor's student in mechanical/acoustical/architectural engineering; available full-time (40 hrs/week) for summer; desire to pursue acoustical consulting; computer software aptitude.
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2mo
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Assistant General Manager
Norwalk, Connecticut, United States
$16-$20/hr OnsiteAll Commitments Available
D1 Training
D1 Training: Athletic-based fitness and sports training facilities for all ages.
2+ YOE2+ Mgmt2-3 years supervisory/management experience in fitness or hospitality; leadership, staff management, customer service, sales; proficient with gym software and POS.
Gym management software, POS systems, Microsoft Office Suite
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4w
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Engineering Intern
Bloomfield, Connecticut, United States
OnsitePart Time, Internship
Salamander Designs
Salamander Designs: Handcrafts custom furniture for technology integration and residential spaces.
Current enrollment in an accredited engineering or related program (junior/senior preferred); proficiency in SolidWorks or AutoCAD and 3D CAD software; strong mechanical aptitude, attention to detail, teamwork, and communication skills.
SolidWorks, AutoCAD, 3D CAD software
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1w
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AI and Information Technology Intern
North Haven, Connecticut, United States
OnsiteInternship
O.F. Mossberg & Sons
O.F. Mossberg & Sons: Designs and manufactures rifles, shotguns, and firearm accessories.
Pursuing a Bachelor's or Master's in CS/AI/IT/Data Science/Software Engineering; interest in AI, familiarity with generative AI platforms, basic programming (Python/SQL/JavaScript) and Microsoft 365; strong communication and analytical skills.
ChatGPT, Microsoft Copilot, Google Gemini, Claude, Python, SQL, JavaScript, Microsoft 365
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4d
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Finance Intern
Hartford, Connecticut, United States
OnsitePart Time, Internship
YMCA of Greater Hartford
YMCA of Greater Hartford: Provides child care, fitness programs, and summer camp services.
Student pursuing a business or finance degree; available 16–20 hours/week; assist with credit card reconciliations, cash/check deposits, accounts payable, filing, and accounting software maintenance; able to lift up to 50 lbs.
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1mo
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Pharmacy Intern-Children and Women's
New Haven, Connecticut, United States
OnsiteInternship
Yale New Haven Health
Yale New Haven Health: Operates a network of hospitals and healthcare facilities.
High school diploma required; currently enrolled in an accredited College of Pharmacy or pre-pharmacy program; current Connecticut Pharmacy Intern registration; inpatient hospital pharmacy experience preferred.
Pyxis, Word processing, Spreadsheets, Computers
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1mo
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Guest Service Associate/Cashier - Seasonal Flex
Trumbull, Connecticut, United States
$18-$21/hr OnsiteAll Commitments Available
Global Partners
Global PartnersNYSE: GLP: Supplies liquid fuel and operates convenience retail stores.
Seasonal/part-time role focused on guest service, cash handling, basic computer skills, and flexibility to work day, night, weekends, and holidays.
POS, Computer
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2mo
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Respiratory Equipment Technician
New Britain, Connecticut, United States
OnsiteAll Commitments Available
Hartford HealthCare
Hartford HealthCare: Provides medical services through hospitals and clinics.
High school diploma; self-starter; able to perform moderately strenuous tasks; handle high temperatures and contaminated equipment; responsible with equipment and pharmaceuticals; basic computer skills.
Computer
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1mo
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On-Call Front Desk Receptionist
Hartford, Connecticut, United States
$17/hr OnsiteAll Commitments Available
The Salvation Army
The Salvation Army: Christian organization providing social services and disaster relief.
Receptionist experience preferred; ability to follow instructions; fast-paced environment; team and independent work; basic computer skills; detail-oriented; professional, discreet, and customer-focused; strong verbal and written communication; professional appearance; self-motivated and dependable.
Microsoft Office, Computers
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2mo
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Seasonal Sales Associate (Clinton, CT, US, 6413)
Clinton, Connecticut, United States
$17-$19/hr OnsiteAll Commitments Available
Under Armour
Under ArmourNYSE: UAA: Sells performance-based athletic clothing, footwear, and accessories.
Seasonal, part-time role; must be 16+ (18+ in CA); ability to lift up to 25 lbs; flexible schedule incl holidays; strong communication.
POS systems, Computers, Mobile devices
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2mo
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Registered Behavior Technician - RBT (2026-2027 SY)
Norwalk, Connecticut, United States
OnsiteAll Commitments Available
Norwalk Public Schools
Norwalk Public Schools: Provides public K-12 education in Norwalk, Connecticut.
2+ YOEAssist in implementing ABA-based interventions and IEP goals; data collection; collaboration with BCBA and teachers.
Data collection system, iPads, Computers, General software
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2mo
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Taco Bell Cashier II - PT
Milldale, Connecticut, United States
OnsiteAll Commitments Available
TravelCenters of America
TravelCenters of America: Operates full-service travel centers for professional drivers and motorists.
2+ YOE2+ years cashier experience preferred; POS/computer knowledge; cash handling; flexible hours including nights weekends holidays.
POS system, Computer
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