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35 software developer internship jobs at 23 companies in Nashua, NH

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2027 US Software Engineering Internship
Seattle or Boston
$45/hr HybridInternship
Axon
AxonNASDAQ: AXON: Develops technology and weapons for law enforcement and public safety.
Pursuing CS/Engineering or related degree, experience with an object-oriented language, working knowledge of SQL/NoSQL and Linux/Unix/Mac, effective communication, and prior software internship experience.
Java, Python, Scala, Go, C#, SQL, NoSQL, Linux, Unix, Mac
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1mo
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Software Development Engineer II, Applied Automation Controls/Embedded Software
Seattle or North Reading or Westboro
$144k-$194k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
3+ YOE3+ years of non-internship software development; 2+ years design/architecture; 2+ years SDE or related; 4+ years large-scale embedded or distributed software; languages: C#, C++, Java, or Perl; OO design; BS in CS/Engineering/Math; SDLC knowledge.
C#, C++, Java, Perl
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2mo
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Sr Software Engineer II
Seattle or Boston
$149k-$238k/yr HybridAll Commitments Available
Axon
AxonNASDAQ: AXON: Develops weapons and software for law enforcement and safety.
8+ YOE8+ years software development; front-end with React; back-end in Go/Scala/Java; cloud-based systems; SQL/NoSQL; Docker/Kubernetes; CI/CD; automated testing frameworks.
HTML, CSS, Typescript/Javascript, React.js, Go, Scala, Java, SQL, NoSQL, Docker, Kubernetes, CI/CD, TeamCity, Jenkins, Selenium, Puppeteer, Playwright
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Full Stack AI Software Engineer I
Boston, Massachusetts, United States
$100k-$120k/yr HybridFull Time
Validity
Validity: Sells software for email deliverability and CRM data cleaning.
Bachelor's in computer science (top-30 program) with 4.0 GPA, 1+ software engineering internship or strong portfolio, proficiency in React, TypeScript, SQL, experience building with AI agents and strong code review and systems design skills.
React, TypeScript, SQL, LLM APIs
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2mo
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Summer Internship
Newton, Massachusetts, United States
HybridInternship
Russian School of Mathematics
Russian School of Mathematics: Provides after-school K-12 mathematics education and enrichment programs.
Temporary/part-time internship with on-site/hybrid/remote location; departments include Software Engineering, IT, Data Analytics, Marketing, Finance, Human Resources, and Business Development.
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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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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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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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16h
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Software Engineering Co-op MLOps: September - December 2026
Boston, Massachusetts, United States
OnsiteInternship
PathAI
PathAI: AI-powered platform for pathology research and clinical diagnostics.
Pursuing Bachelors/Masters in CS or related (50%+ complete) preferred, at least one prior employer/internship, strong learning ability and teamwork skills.
AWS, Kubernetes
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1w
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Front-End Software Developer Co-Op Spring 2027
Peabody or Boston
$23-$30/hr OnsiteInternship
Specter Aerospace
Specter Aerospace: Building hypersonic vehicles for defense and commercial applications.
Pursuing a bachelor\u0002s in CS/CE/SE, experience with JavaScript/TypeScript/React, understanding of OOP, testing and documentation skills, eligible for U.S. Secret clearance, and able to pass drug/background checks.
JavaScript, TypeScript, React, HTML, CSS, Python, Plotly, D3.js, Git, PLC
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2w
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Co-Op 2026 – Software Engineering – XiO Cloud (Full Stack Web Dev)
Boston or Rockleigh
OnsiteInternship, Temporary
Crestron
Crestron: Designs and manufactures advanced automation and control systems.
Enrolled bachelor’s student in software engineering/computer science; unrestricted US work authorization; familiarity with C#, .NET, ASP.NET Core, modern SPA frameworks, TypeScript, HTML/CSS, Git; strong programming fundamentals.
C#, ASP.NET Core, .NET, Angular, React, Vue, HTML, CSS, TypeScript, Git
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2mo
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Senior Engineer, Software Embedded Applications (R5071)
Boston, Massachusetts, United States
$120k-$190k/yr OnsiteMultiple Commitments Available
Shield AI
Shield AI: Develops autonomous flight software and unmanned aircraft for defense.
Senior embedded software engineer with strong C/C++ in embedded systems; experience with avionics, RTOS, and modern software practices.
C/C++, RTOS, SystemVerilog, FPGA, BSP
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2mo
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AI Engineer
New York or Los Angeles or Boston or Jersey City or Houston
$115k-$130k/yr RemoteAll Commitments Available
Makai Labs
Makai Labs: Provides AI-powered enterprise automation and human-machine teaming solutions.
Hands-on AI engineer with Python skills; experience building AI apps; internship/coursework/research or projects; ability to prototype and iterate quickly.
Python, API development, Backend services, Workflow automation, FastAPI/Flask, React/TypeScript, Docker, Testing (Python/TypeScript), LLM retrieval/search
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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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1mo
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Research Internship
United States or Switzerland or Portugal or Canada or New York City or Boston or Seattle
$100k-$130k/yr RemoteInternship, Internship
Chainlink Labs
Chainlink Labs: Building decentralized oracle networks for blockchain smart contracts.
B.S. in CS or equivalent experience, coursework in algorithms/data structures/discrete math, familiarity with academic research, professional software development experience required; Go/Rust and blockchain knowledge preferred.
Go, Rust, TypeScript, Solidity, Python, LaTeX, git, Linux/Unix
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1mo
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AI Automation Engineer Co-op
Vancouver or Boston or Vancouver
$4k/mo HybridInternship
Later
Later: Provides software for social media scheduling and influencer marketing.
Currently enrolled in a CS/software/data program or equivalent experience; some coding experience (Python, JavaScript, C#); familiarity with LLMs, APIs, and no-code/automation tools; strong communication and documentation skills.
Python, JavaScript, C#, LLMs, APIs, Zapier, Make, n8n
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1mo
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Fall 2026 Estimating Internship
Randolph, Massachusetts, United States
OnsiteInternship
Cox Engineering
Cox Engineering: Provides HVAC mechanical contracting and maintenance services.
In-person internship for college students to assist producing bids, learn take-off software, gather project plans/specs, collaborate with estimators, and develop HVAC estimating skills.
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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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2w
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Fall 2026: CodeShark, D2C Digital Experience Web Development (August through December 2026)
Needham, Massachusetts, United States
$26-$35/hr HybridFull Time, Internship
SharkNinja
SharkNinjaNYSE: SN: Designs and sells household appliances and beauty technology products
Currently enrolled in or recently graduated from a bachelor's/master's program; strong HTML,CSS,JavaScript/TypeScript; modern framework (React or Vue); Git, Jira, Figma literacy; AI-tool experience (Claude Enterprise); QA basics; strong communication.
Claude Enterprise, HTML, CSS, JavaScript, TypeScript, React, Vue, Git, Jira, Figma
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1mo
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Co-Op, Automation
Cambridge, Massachusetts, United States
OnsiteInternship
Lila Sciences
Lila Sciences: Develops an AI platform for autonomous scientific research and discovery.
Pursuing or completed BS/MS in computer science, automation, engineering, or related quantitative discipline; Python proficiency; experience with data pipelines/streaming/version control; foundational ML coursework and interest in lab equipment.
Python, SCADA
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