33 engineering internship jobs at 23 companies in Connecticut

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Design Engineer Internship - Fall 2026
Bloomfield or Suffield
OnsiteInternship
LiquidPiston
LiquidPiston: Developing compact, high-efficiency rotary internal combustion engines.
0+ YOEPursuing mechanical engineering; strong SolidWorks; hands-on prototyping; problem-solving; US person preferred.
SolidWorks, CAD
1w
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Data Engineering Internship (Summer 2027)
Stamford or Houston or New York City
OnsiteFull Time, Internship
Castleton Commodities International
Castleton Commodities International: Invests in and manages global energy and commodity assets.
Pursuing a Bachelor's or higher in CS/Engineering/MIS, expected grad Winter 2027–Spring/Summer 2028. Strong Python and SQL skills; experience with pandas, NumPy, SQLAlchemy; familiarity with Snowflake, cloud (AWS/Azure); web scraping interest.
Python, SQL, Snowflake, pandas, NumPy, SQLAlchemy, Airflow, AWS, Azure
2mo
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Engineering Co-Op
Groton, Connecticut, United States
OnsiteInternship
Precision Castparts Corp.
Precision Castparts Corp.NYSE: BRK.B: Manufacturer of complex metal components for aerospace and industrial markets.
Enrolled student pursuing a Bachelor's or Master's in Materials, Mechanical, or Aeronautical Engineering; minimum GPA 2.5; willingness to relocate; capable of data analysis, documentation, and process improvement.
Word, Excel, PowerPoint
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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
2mo
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Rotational Development Program, Engineering, Operations, and Supply Chain
Monroe or Rockwood or Mason City or Monroe or Berlin or Montgomery or Salem or Memphis or New Haven or Las Vegas or Milan or Sacramento or Phoenix
FieldFull Time
ASSA ABLOY
ASSA ABLOYNasdaq Stockholm: ASSA B: Global manufacturer of locks and automated entrance systems.
Bachelor's in engineering, supply chain, or operations (minimum 3.0 GPA) required; internships desirable. Must be willing to relocate for rotations and travel to multiple manufacturing sites. Strong communication and curiosity.
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2027 Engineering Summer Analyst
Greenwich, Connecticut, United States
OnsiteFull Time, Internship
AQR Capital Management
AQR Capital Management: Quantitative investment firm managing traditional and alternative strategies.
0+ YOEUndergraduate or Master’s student; completing degree between Dec 2027 and Jun 2028; strong problem solving and collaboration.
C#, .NET Core, HTML, Angular, Tableau, Python, Java, AWS, Git, Jenkins, Redis, RabbitMQ, Postgres
1mo
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Co-Op - Optical Engineer (Internship)
Wilton, Connecticut, United States
OnsiteFull Time, Internship
ASML
ASMLNASDAQ: ASML: Manufactures lithography systems used to print patterns on wafers.
Pursuing degree in optical engineering/physics/engineering; experience with optical design (CodeV, Zemax), physical optics modeling (FRED, MATLAB), sensor alignment and metrology; able to work in cleanroom and follow procedures.
CodeV, Zemax, MATLAB, FRED
2w
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Entry Level Wastewater Engineer
Hartford, Connecticut, United States
$75k-$100k/yr HybridFull Time
Trilon Group
Trilon Group: Providing engineering and design services for community infrastructure.
Bachelor's in Environmental or Civil Engineering; coursework or internship in wastewater; EIT preferred; familiarity with AutoCAD and Civil 3D; exposure to HydroCAD or HEC-RAS.
AutoCAD, Civil 3D, HydroCAD, HEC-RAS
3mo
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Assistant Substation Engineer, Electrical - Transmission & Distribution (Conshohocken, PA, Newton, MA, Wallingford, CT, or Morristown, NJ)
Conshohocken or Newtown or Wallingford or Morristown
$85k-$130k/yr OnsiteFull Time
Burns & McDonnell
Burns & McDonnell: Engineering, architecture, and construction services for global infrastructure.
0+ YOEBachelor's in Electrical or related engineering from an ABET-accredited program; FE exam required; internship/consulting experience preferred; EIT preferred; strong communication and detail orientation.
Microsoft Office Suite
10h
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Water Engineer Intern
Middletown, Connecticut, United States
$24-$36/hr HybridPart Time
Arcadis
ArcadisEuronext Amsterdam: ARCAD: Designing and engineering sustainable solutions for natural and built environments
Pursuing a BS in civil/environmental/water resources engineering, 16–20 hrs/week availability, MS Office proficiency, strong communication and analytical skills; prior water sector coursework or internship preferred.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Microsoft SharePoint, Building Information Modeling (BIM), Power BI, Augmented Reality
1mo
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MEP Electrical Engineer
Denver or Alaska or Arkansas or California or Connecticut or Delaware or Hawaii or Kentucky or Massachusetts or Rhode Island or Vermont or Puerto Rico or United States
$75k-$90k/yr OnsiteFull Time
Short Elliott Hendrickson
Short Elliott Hendrickson: Provides engineering, architecture, planning, and environmental consulting services.
0+ YOEBachelor's in Electrical Engineering, Revit or AutoCAD experience, ability to obtain EIT within one year, coursework/internship experience related to building electrical systems, must reside in Denver metro or relocate, occasional travel.
Revit, AutoCAD
1w
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Wentworth Institute of Technology College Career Fair Fall 2026
Newton or Bloomfield
OnsiteInternship
Salas O'Brien
Salas O'Brien: Provides integrated engineering design and technical consulting services.
Must be currently enrolled in a bachelor’s or master’s program in engineering, architecture, audio engineering, or business-related field; strong communication and teamwork; CAD (AutoCAD/Revit) experience helpful.
AutoCAD, Revit
2w
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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.
3w
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Mechanical I - Intern Nuclear
Stonington, Connecticut, United States
OnsiteFull Time, Internship
Zachry Group
Zachry Group: Provides engineering, construction, and maintenance for industrial facilities.
BS in mechanical, chemical, or nuclear engineering (ABET) required; FE desirable. Proficiency with Microsoft Office; ability to perform calculations, design support, field walkdowns, and maintain unescorted nuclear plant access.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint
1w
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Field Engineer I - Nationwide 2027
Providence or Glastonbury or Boston or New York or Arlington or Baltimore or Philadelphia or Newark or Charlotte or Columbia or Atlanta
$35-$44/hr OnsiteFull Time
Gilbane Building Company
Gilbane Building Company: Global construction and facilities management services provider.
0+ YOEBachelor's in engineering or construction management, 0-1 years experience or internships, OSHA 30, Procore and Microsoft Office proficiency, First Aid/CPR, strong communication and technical skills.
Procore, Microsoft Office
2mo
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International Graduate Rotational Program - Service & Sales
Farmington, Connecticut, United States
OnsiteFull Time
TRUMPF
TRUMPF: Manufactures industrial machine tools and laser technology systems.
Master’s degree in economics, engineering, or business; internship/coop or early experience in marketing, sales, or service; willing to relocate and obtain work visa; strong analytical and initiative.
2mo
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International Graduate Rotational Program - Service & Sales
Farmington, Connecticut, United States
OnsiteFull Time
TRUMPF
TRUMPF: Manufactures industrial machine tools and laser systems for production.
Master’s degree in economics, engineering, business administration, or related field; internship or early professional experience in marketing, sales, or service; willingness to relocate and work internationally; requires visa eligibility for Germany.
2mo
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Utility Operator (Wallingford, CT, US, 06492)
Wallingford, Connecticut, United States
$25/hr OnsiteAll Commitments Available
AMETEK
AMETEKNYSE: AME: Manufacturer of electronic instruments and electromechanical devices.
High school diploma or equivalent; basic computer skills; detail-oriented with strong thinking and organizational skills; weekend/holiday availability; overtime; fluent English reading/writing; US Person required.
1mo
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Procurement Expert
Stamford, Connecticut, United States
$90k-$98k/yr OnsiteFull Time
Henkel
HenkelXETRA: HEN3: Manufactures laundry, beauty, and adhesive products globally.
0+ YOEBachelor's degree in business/supply chain/procurement/engineering or related; 0–2 years relevant experience or strong internship background; experience in supply risk management, sourcing, supplier performance, and Excel/PowerPoint; ERP/e-sourcing exposure a plus.
Microsoft Excel, Microsoft PowerPoint, e-sourcing, ERP
1mo
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BLP Intern – Technology
Stamford, Connecticut, United States
HybridFull Time, Internship
Synchrony
SynchronyNYSE: SYF: Provides consumer financial services and private label credit cards.
Pursuing a Bachelor's in CS, Information Systems, Engineering, or Information Assurance/Cyber Security; minimum 3.0 GPA; available for a 10-week full-time (40 hrs/wk) June–August internship; age 18+; background check, drug screen, fingerprints, and ability to satisfy Section 19 FDIC requirements; relocation possible.