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15 computer science intern jobs at 14 companies in Fairfield, CT

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Data Analytics / Data Science Intern
Lake Success, New York, United States
$55k-$86k/yr OnsiteInternship
Northwell Health: Provides clinical healthcare services through a hospital network.
0+ YOEBachelor's degree required (or equivalent); 0-1 years relevant experience; preferred Computer Science degree graduating May 2026; tasks include data extraction, preparation, and supporting analyses.
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2d
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Technology Intern
New York, New York, United States
$18/hr OnsiteFull Time, Part Time
Gagosian
Gagosian: Operates a global network of contemporary art galleries.
Foundations in computer science/IT, AI literacy, cloud-native familiarity, basic cybersecurity knowledge, hardware and networking skills, ability to lift 30 lbs and stand for extended periods.
Zendesk
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2w
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Administrative Intern
Middletown or Mount Vernon
OnsiteInternship, Part Time
Access: Supports for Living
Access: Supports for Living: Provides comprehensive health and human services to the community.
Must be enrolled in a degree program granting internship credit in business administration, non-profit management, finance, computer science, human resources or related field; strong analytical, organizational, and communication skills; proficiency in Microsoft Office; ability to handle confidential information.
Microsoft Office
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2mo
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Research Intern - Self-Improving AI
Cambridge or New York
$6k-$13k/mo HybridInternship
Microsoft
MicrosoftNASDAQ: MSFT: Develops software, services, devices, and cloud computing solutions.
1+ YOEEnrolled in a Master's or PhD program in machine learning/computer science, 1+ year experience with deep learning/language modeling/ reinforcement learning, submit cover letter, references, and research samples; must be onsite at manager's worksite.
PyTorch, HuggingFace Transformers, vLLM
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3w
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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
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3w
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Graduate Student Intern (Class IV)
New York, New York, United States
$23/hr HybridPart Time
Columbia University
Columbia University: Private Ivy League research university providing academic degree programs.
Junior-year status, coursework in computer science/physics/neuro, experience in any programming language (Python,R,Java,C++,Matlab) required; imaging processing preferred; attention to detail and ability to work independently.
R, ImageJ, Python, Java, C++, Matlab
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1mo
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Volatility Trading Developer Intern (Summer 2027)
New York, New York, United States
$14k/mo OnsiteInternship
Walleye Capital
Walleye Capital: Multi-strategy investment firm specializing in quantitative and volatility strategies.
Pursuing undergraduate or non-MBA master’s in mathematics, computer science, engineering, or related field; strong programming in Python/Java/C++; analytical skills; collaborative in fast-paced environment.
Python, Java, C++
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2w
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Product Solutions and Operations Project Intern (Content and Service Ads- Search Ads) - 2026 Start (BS/MS)
New York, New York, United States
OnsiteInternship
TikTok
TikTok: Global short-form video hosting and social media platform.
Currently pursuing a Master’s in Computer Science or related field; strong analytics with Excel/Sheets and SQL; detail-oriented, organized; able to commit to a 12-week full-time internship.
Microsoft Excel, Sheets, SQL
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1mo
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Intern - Hardware Engineer (Fall 2026)
New York, New York, United States
$25-$30/hr OnsiteInternship
Persistent Systems
Persistent Systems: Develops and manufactures secure mobile ad hoc networking systems.
Enrolled in a bachelor’s program in Electrical Engineering, Computer Science, or related with ≥2 years completed; completed courses in engineering design and RF theory; U.S. security clearance or ability to obtain.
Wave Relay MANET, Cloud Relay
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2mo
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Machine Learning Software Engineer Intern - Winter 2027
San Francisco or New York City
HybridInternship, Temporary
Rippling
Rippling: Unified platform managing workforce HR, IT, and finance operations
Currently enrolled in an M.Sc. or Ph.D. in computer science or related field; strong backend programming skills (Python, PySpark, PyTorch); ML experience, LLM familiarity preferred; excellent communication and learning mindset.
Python, PySpark, PyTorch, LLMs
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1w
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Linux Engineer - Latency Critical Trading Technology
New York, New York, United States
$175k-$250k/yr OnsiteFull Time
Millennium Management
Millennium Management: Global alternative investment firm managing diverse investment strategies.
Bachelor's in Computer Science or related; strong Linux internals and networking knowledge; experience with kernel bypass, FPGA/smart NICs; scripting with Python/Perl; Ansible and C/C++ familiarity.
Linux, Onload, VMA, Python, Perl, Ansible, C, C++
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3d
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Staff Software Engineer
Redwood City or New York City or Munich
$212k-$285k/yr HybridFull Time
Celonis
Celonis: Provides process mining software for business process optimization.
8+ YOEBS in Computer Science, 8+ years software engineering experience, strong background in database internals and large-scale data systems, proficiency in C++ (17), analytical and problem-solving skills.
C++ (17), Starrocks, ClickHouse, Process Intelligence Graph
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1mo
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Senior Product Software Engineer
New York, New York, United States
$149k-$199k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces media content and operates global theme parks.
5+ YOE5+ years relevant experience, BS in Computer Science or equivalent, expertise building Android/Android TV apps with Kotlin and Android SDK, knowledge of Android internals, unit/integration testing, code reviews, and telemetry.
Kotlin, Android SDK, Android TV, Amazon Fire TV, Android Profiler, DRM
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1mo
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Cons - Bus Cons - Trans Arch-Strat and Bus Trans-Banking-FSO-Manager - Multiple Positions - 1716915 (New York, NY, US, 10001-8604)
New York, New York, United States
$177k/yr HybridFull Time
EY
EY: Global firm providing audit, tax, and professional consulting services.
4+ YOE2+ MgmtBachelor's in finance/accounting/computer science/economics/information systems + 5 years (or Master's + 4 years); 3 years consulting/financial institution experience; 3 years across listed transformation capabilities; 2 years managing workstreams; travel up to 80% (20% international).
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2mo
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Vice President, Internal Audit - Data Analytics
New York, New York, United States
$162k-$215k/yr HybridFull Time
BlackRock
BlackRockNYSE: BLK: Provides investment management and financial technology services globally.
6+ YOEBachelor’s or Master’s degree in information systems, data analytics, data science, computer science, economics, risk management, or related field; 6+ years in data analytics and/or audit; strong SQL; Python; BI tools; cloud data environments; ETL; analytics and communication skills.
SQL, Python, VBA, PowerShell, Power BI, Power Automate, Power Apps, Azure, AWS, Snowflake, ETL, Selenium, N-Gram analysis, Sentiment Analysis
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