171 engineering internship jobs at 112 companies in Fairfield, CT

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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
3w
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Structural Engineering Intern (Summer 2027)
White Plains, New York, United States
OnsiteFull Time
OneFourTwo Design Group
OneFourTwo Design Group: Full-service architecture and structural engineering design firm.
Enrolled in a civil engineering degree program (GPA ≥ 3.0). Strong communication, coursework or internship experience in construction/engineering; ability to prepare designs, review codes, and produce Revit construction drawings.
Revit
4d
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Engineering Intern
Bohemia, New York, United States
$20-$25/hr OnsiteMultiple Commitments Available
Data Device Corporation
Data Device Corporation: Manufacturer of high-reliability connectivity and power control electronics.
Enrolled in an electrical engineering/technical/scientific program; U.S. person or eligible for Department of State/commercial license; basic circuit design, soldering, test equipment (DMM, oscilloscope), MS Office/Excel, technical writing; able to work under supervision.
MS Office, Microsoft Excel, DMM, Oscilloscope
3mo
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2026 T. Rowe Price Labs Internship Program – New York
New York, New York, United States
HybridMultiple Commitments Available
T. Rowe Price
T. Rowe PriceNASDAQ: TROW: Global investment management firm providing funds and retirement services.
Full-time student with expected graduation May/June 2027–May/June 2029; minimum GPA 3.0; internship in software engineering or data science; hybrid work up to 3 days from home.
3mo
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Engineering Intern — Summer/Fall 2026
New York City, New York, United States
$8k-$12k/mo OnsiteInternship
Revise Robotics
Revise Robotics: Building automated robotic systems to refurbish used laptops.
Intern with strong passion for robotics; demonstrated ability to build or reverse-engineer hardware/software; comfortable in hands-on environments.
3mo
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Mechanical Engineering Intern - Fall
New York, New York, United States
$37k-$128k/yr OnsiteAll Commitments Available
Carrier
CarrierNYSE: CARR: Manufactures HVAC, refrigeration, and fire safety systems.
0+ YOEPursuing a Bachelor's in Engineering; GPA 3.0+; eligible to work in the US without sponsorship.
MATLAB, EES
3mo
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2026 Fall Research Science Internship - United States, PhD Student Science Recruiting
Seattle or Corvallis or Bellevue or Boston or Cambridge or New York City or Santa Clara or Arlington or Sunnyvale
$136k-$184k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
Enrolled in a PhD program in computer science, machine learning, engineering, or related fields; willing to relocate to internship location; full-time availability for the duration.
1mo
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Civil Engineering Intern - Transportation (Fall 2026)
Rochelle Park, New Jersey, United States
$23-$35/hr OnsiteFull Time, Internship
Stantec
StantecTSX: STN: Provides professional engineering, architecture, and environmental consulting services.
0+ YOECurrently enrolled in a bachelor's civil/structural engineering program; exposure to CAD; good academic standing; ability to assist with drafting, checking drawings and calculations, quantity take-offs, and field inspection.
CAD
2mo
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DoD SkillBridge Internship: Junior Estimator
New York, New York, United States
$65k-$90k/yr OnsiteFull Time, Internship
JRM Construction Management
JRM Construction Management: Provides general contracting and construction management for commercial building projects.
0+ YOEEntry-level DoD SkillBridge internship for aspiring estimators; prior construction exposure helpful; must meet DoD eligibility.
Microsoft Office, Microsoft Project, Procore
6d
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Summer 2027 Systems Engineering Intern
New York City, New York, United States
$180k/yr OnsiteInternship
PDT Partners
PDT Partners: Systematic hedge fund using quantitative models for global trading
Current bachelor's, master's, or PhD student in a rigorous technical program; strong programming, systems, networking, cloud and automation interest; strong communication and problem-solving skills.
Kubernetes, GitOps
1mo
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Software Engineering Intern — Fall 2026
New York City, New York, United States
$40/hr OnsiteInternship, Full Time
Junior
Junior: AI-powered research tools for private equity investors.
0+ YOEPursuing a Computer Science or related degree; comfortable with TypeScript/JavaScript and Next.js; curious about LLMs; strong communication skills; previous internship experience is a plus.
LLMs, Next.js, TypeScript, JavaScript, MacBook
1w
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Internship - Quantitative Trading
Austin or Chicago or New York City
$5k-$6k/wk OnsiteInternship
Virtu Financial
Virtu FinancialNYSE: VIRT: Provides liquidity and trading technology to global financial markets.
Rising-junior college students for a 10-week internship; strong quantitative background (physics, engineering, math, statistics), outstanding problem-solving, and some programming experience (Python, SQL, Java, C++).
Python, SQL, Java, C++
2mo
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Engineering Intern (Fall)
New York, New York, United States
$2k-$3k/wk OnsiteInternship
Forus
Forus: Builds an AI-powered platform that connects doctors, pharmacies, payers, and biopharma to accelerate patient access to therapies.
Pursuing a CS-related degree, strong programming fundamentals, track record of shipping projects, full-stack ability, product instincts, and high autonomy.
2w
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2027 North America Software Engineering Internship
Bellevue or Boulder or Denver or Irvine or New York or Seattle
$46-$62/yr HybridInternship
The Trade Desk
The Trade DeskNASDAQ: TTD: Cloud-based programmatic advertising platform for data-driven media buying.
Enrolled in a Bachelor's or Master's program, expected to graduate 2027–2028; fluent in one or more object-oriented languages; strong data structures and algorithms; available to work 3 days in office (Tue–Thu).
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.
2mo
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Internship - Financial Engineer - New York, United States
New York, New York, United States
$100k/yr OnsiteInternship, Full Time
Societe Generale
Societe GeneraleEuronext Paris: GLE: Global provider of retail, investment, and private banking services.
1+ YOEPursuing graduate coursework in financial engineering/math; internship in markets helpful; strong analytical and communication skills.
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
2mo
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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
2w
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Software Engineering Internship (C++ or Python) – Summer 2027
Austin or Chicago or New York City or Singapore or London
$6k/wk OnsiteInternship
Hudson River Trading
Hudson River Trading: A quantitative firm using technology to trade global financial markets.
Full-time undergraduate student graduating 2028, programming experience in Python/C/C++, strong problem solving and communication skills, eligible for full-time roles in 2028.
Python, C, C++
3mo
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Senior Mechanical Engineer - Building Engineering
Pennington or New York
$137k-$212k/yr OnsiteAll Commitments Available
HDR
HDR: Global firm providing architecture, engineering, and environmental services.
10+ YOESenior Mechanical Engineer with PE license, 10+ years in mechanical design for commercial/institutional buildings; leadership, Revit, AutoCAD, MS Office; experience with labs/healthcare/data centers; ability to coordinate across disciplines.
Revit, AutoCAD, Microsoft Office, MS Project, Energy modeling software, Load calculation software