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233 developer intern jobs at 156 companies in Nashua, NH

1mo
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2027 Software Engineer Intern
Costa Mesa or Irvine or Atlanta or Seattle or Boston or Reston
$45-$50/yr OnsiteInternship, Full Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
Pursuing a Bachelor\u0002s in CS or related field, rising senior returning to school, proficiency in C++, Go, Rust, Java, or Python, familiarity with algorithms, data structures, cloud and front-end concepts, and U.S. Person status required.
C++, Go, Rust, Java, Python, Lattice OS
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1mo
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Quantic – Quantitative Developer Intern (Summer 2027)
Boston, Massachusetts, United States
$20k/mo OnsiteInternship
Walleye Capital
Walleye Capital: Multi-strategy investment firm specializing in quantitative and volatility strategies.
Pursuing an undergraduate or advanced degree in CS, engineering, statistics, mathematics; strong coding skills; experience with ML packages; interest in quantitative trading.
Python, Bash, Perl, UNIX/Linux, scikit-learn, TensorFlow, PyTorch
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3mo
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Facilities Engineer Intern (6201)
Newington, New Hampshire, United States
OnsiteInternship
SubCom
SubCom: Manufactures and installs undersea fiber optic cable systems.
Knowledge of HVAC, plumbing, electrical, mechanical and clean room operations; AutoCAD; reading drawings; strong communication; BS in engineering or related project management experience.
AutoCAD
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Private Equity Sourcing Intern - Engineering
Boston, Massachusetts, United States
OnsitePart Time, Internship
Heritage Holding
Heritage Holding: Private investment firm acquiring and operating lower middle-market businesses.
Part-time intern (10–20 hrs/week) for outbound B2B outreach. Must be comfortable cold-calling, organized, coachable, reliable, and able to record activity in CRM; interest in sales, business development, private equity, or engineering services preferred.
HubSpot CRM
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2w
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Quantitative Developer Intern, Summer 2027
Boston, Massachusetts, United States
$4k-$5k/wk OnsiteFull Time
Arrowstreet Capital
Arrowstreet Capital: Manages quantitative equity investment portfolios for institutional investors worldwide
Enrolled in undergraduate or graduate technical program with expected degree completion within a year; strong analytic, quantitative, programming skills; knowledge of data structures, numerical algorithms, probability and statistics; excellent communication.
Python, R, APIs, PyData, cloud
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Software Engineer - Backend (Fall 26' Intern)
Natick, Massachusetts, United States
$28-$32/hr OnsiteInternship
Delsys
Delsys: Designs and manufactures advanced wearable electromyography and physiological sensors.
Currently enrolled or recently graduated in CS/CE or similar; fluent in Java, C#, or C++; strong OOP and back-end development experience for Windows or Linux; wearable sensor experience useful; must show valid work eligibility.
Java, C#, C++, Windows, Linux
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Mechanical Engineer Intern/Co-op Fall 2026
Cincinnati or Arlington or Framingham or Lexington or Dublin or Annapolis
OnsiteFull Time
Legence
LegenceNASDAQ: LGN: Provides engineering and maintenance services for mission-critical building systems.
Pursuing a bachelor's in mechanical or architectural engineering, AutoCAD/Revit experience preferred, Microsoft Word/Excel proficiency, ability to work full time onsite and travel locally, no sponsorship available.
AutoCAD, Revit, Microsoft Word, Microsoft Excel
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RFP Intern
Boston, Massachusetts, United States
$20-$22/hr OnsiteFull Time, Internship
Victory Capital
Victory CapitalNASDAQ: VCTR: Provides investment management services through specialized mutual funds and ETFs.
Currently pursuing a Bachelor’s in Finance/Business/Economics, strong business writing and project management, high proficiency in Excel and Word, self-starter with strong verbal skills.
Microsoft Excel, Microsoft Word
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Strategy Intern
Beverly, Massachusetts, United States
OnsiteInternship, Full Time
Yesway
Yesway: Operates a regional chain of convenience stores and gas stations.
Advanced Microsoft Excel required; support research and analysis of investment opportunities, strategic risks, and project efficiencies; strong communication, analytical, organizational, and deadline-oriented skills.
Microsoft Excel, Microsoft PowerPoint
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3w
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Student Intern
Boston, Massachusetts, United States
$31k-$41k/yr HybridPart Time, Internship
Dana-Farber Cancer Institute
Dana-Farber Cancer Institute: Comprehensive cancer treatment and research center.
Support lab research with literature review, database annotation, data analysis and displays, identify biorepository samples, and present a 45-minute journal club; supervised by lab postdoc and PI.
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Quality Intern
Manchester, New Hampshire, United States
OnsiteInternship
Advanced Regenerative Manufacturing Institute
Advanced Regenerative Manufacturing Institute: Non-profit organization advancing the U.S. biofabrication industry through innovation.
Pursuing a degree in biological science; familiarity with GDP/GLP/GMP; experience with electronic Quality Management Systems; strong communication; MS Office; knowledge of FDA regs.
MS Office, Quality Management System, Excel, Word
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Scientific Intern
Boston, Massachusetts, United States
OnsiteInternship
QuEra Computing
QuEra Computing: Develops and operates neutral-atom quantum computing systems.
University-bound candidate for a summer internship to support scientific teams on support projects; technical and communication skills preferred.
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2mo
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Intern - Design Verification Infrastructure Engineer - Platform
Santa Clara or Austin or Berkeley or Boston
OnsiteFull Time, Internship
SiFive
SiFive: Designs and licenses high-performance RISC-V processor intellectual property.
Software engineer with experience in at least one compiled language and one scripting language; knowledge of modern software practices; production deployments.
Scala, Python, Chisel, CIRCT, MLIR
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2mo
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Internal Tools Developer
New York City or Boston
$70k-$100k/yr OnsiteFull Time
Arch
Arch: Automates data and document management for private market investments.
Strong JavaScript and SQL skills; experience building internal tools; quick learner; interest in finance; good communication.
JavaScript, SQL, HTML, CSS, React
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1w
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Platform Engineer
Merrimack or Westlake
OnsiteFull Time
Fidelity Investments
Fidelity Investments: Provides investment management, retirement planning, and brokerage services.
Experience building developer platforms and internal tooling at enterprise scale; knowledge of IDEs, Windows/macOS deployment, cloud (AWS/Azure/Google Cloud), CI/CD, APIs, and strong communication and collaboration skills.
VS Code, GitHub Copilot, Gemini Code Assist, AWS, Azure, Google Cloud, Kubernetes, CI/CD
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2w
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Laboratory Automation Intern
Danvers, Massachusetts, United States
$18/hr OnsiteFull Time
Cell Signaling Technology
Cell Signaling Technology: Develops and manufactures antibodies and reagents for scientific research.
Undergraduate enrollment in engineering/computer science/related field, basic programming proficiency (Python or equivalent), command-line and ETL familiarity, exposure to lab liquid handling, GitHub and Jira experience, strong communication and collaboration.
Python, SQL, C++, Github, Jira, Laboratory Information Management System, ETL, LLM
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3w
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Intern, Research & Development
Exeter, New Hampshire, United States
OnsiteInternship, Full Time
SIG SAUER
SIG SAUER: Designs and manufactures firearms and ammunition for global defense markets.
Candidate working toward a BS in Mechanical/Electrical Engineering, basic proficiency in SolidWorks/CAD, Microsoft Excel and Word, report writing, ability to lift 25 lbs, and willingness to travel infrequently.
SolidWorks, Microsoft Excel, Microsoft Word
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2mo
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Sr. Software Engineer - Analytics
Somerville, Massachusetts, United States
$130k-$155k/yr HybridFull Time
Babel Street
Babel Street: AI-powered identity intelligence and risk operations software solutions.
6+ YOE6+ years Java development; scalable systems; NLP/NLP-related analytics; Elasticsearch internals; Kubernetes; multilingual NLP are a plus.
Java, Elasticsearch, Kubernetes, NLP, Natural Language Processing
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1mo
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Art & Nature Center Intern
Salem, Massachusetts, United States
$2k/yr OnsiteInternship
Peabody Essex Museum
Peabody Essex Museum: A historic museum dedicated to global art and culture.
Enrolled undergraduate or graduate student; strong written and oral communication; detail-oriented; passion for working with children and families; available 2+ days/week within Tue–Sun 9am–5pm; able to complete 180 hours and attend required orientation and professional development.
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FALL Environmental Justice Intern - Unpaid
Boston, Massachusetts, United States
OnsitePart Time
Commonwealth of Massachusetts
Commonwealth of Massachusetts: Providing public services and governance to the people of Massachusetts.
Supports EJ strategy implementation: outreach, materials development, multilingual resources, community engagement, research; strong communication and organizational skills; interest in environmental justice, agriculture, or related fields.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Lists, Canva, Adobe Creative Suite
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