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116 software intern jobs at 89 companies in Plainfield, NJ

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Software Engineering Intern (Fall 2026)
New York, New York, United States
$50/hr HybridInternship
Gemini
GeminiNasdaq: GEMI: Regulated platform for trading and storing digital assets.
Pursuing CS/CE or related degree; interest in blockchain/Web3; strong software fundamentals; proactive; good communication; open to feedback.
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1d
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Software Engineering Intern – Summer 2027
Fridley or Tempe or Eatontown or Santa Rosa or Lafayette or Boulder or Plymouth or Mounds View or Irvine or North Haven or Memphis or Newton or Dexter or Santa Ana or Mansfield or Fort Worth or Minneapolis or Brooklyn Center or Jacksonville or Boston or Brooklyn Park
$27-$45/hr OnsiteFull Time
Medtronic
MedtronicNew York Stock Exchange: MDT: Develops and manufactures medical devices and digital health solutions.
Currently pursuing BS/MS in computer/software engineering or related with anticipated graduation 2027–2029; full-time internship availability June–Aug; U.S. work authorization required; 3.0 GPA preferred; experience with programming/projects preferred.
C, C++, C#/.NET, SQL, JavaScript, Java, Python, Swift, HTML/CSS, Microsoft Visual Studio, Jenkins, GitLab
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2mo
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Software Engineer Intern - Backend Focused - Winter 2027
New York or San Francisco or Seattle
OnsiteInternship, Temporary
Rippling
Rippling: Unified platform managing workforce HR, IT, and finance operations
Current undergraduate/graduate student in CS or related field, previous software engineering internship experience with Python, backend programming skills, strong communication and critical thinking.
Python, Slack, Microsoft 365
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Software Engineering Intern (Summer 2027)
New York City, New York, United States
$4k-$6k/wk OnsiteFull Time
Quadrillion Labs
Quadrillion Labs: Building an agentic research intelligence platform for computational analysis.
Current undergraduate at a US or Canadian university; strong engineering skills in Python or React; full-stack or backend experience; ability to move quickly in zero-to-one environments.
Python, React
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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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Summer 2027 Software Engineering Intern
New York, 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 field; strong programming, data structures, and algorithms; communication and problem-solving skills.
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2d
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Software Engineering Intern [Spring/Summer 2027]
New York City, New York, United States
$11k/mo OnsiteInternship
Melius
Melius: AI-native creative canvas for agents to generate visual content.
Pursuing CS degree or equivalent; strong TypeScript skills; experience with LLMs/agents, CRDTs, and frontend/backend frameworks; built real projects or shipped product work.
Next.js, CRDT, NestJS, MikroORM, Postgres, Temporal, Turbopuffer, TypeScript, React Flow, Yjs, LLMs
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Software Engineer, Intern
New York, New York, United States
$55k/hr OnsiteInternship
Breaking Ground
Breaking Ground: Provides supportive housing and social services to homeless populations.
High school diploma or equivalent; experience building and maintaining web applications; proficiency in C#, JavaScript, Python, SQL, SQL Server, ASP.NET MVC, Git, and Microsoft Azure; MS Office skills and strong communication.
C#, JavaScript, Python, SQL, SQL Server, ASP.NET MVC, Git, Microsoft Azure, Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft Teams
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Software Engineer – Intern (US)
New York or Miami
$5k-$6k/wk OnsiteInternship
Citadel Securities
Citadel Securities: Global market maker providing liquidity for financial markets.
Degree in computer science or related field, strong programming and design skills, analytical background in probability/statistics, and effective communication for technical teamwork.
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Summer Intern 2027 - Software Developer
New York City, New York, United States
$300k/yr OnsiteInternship
Five Rings
Five Rings: Proprietary trading firm developing quantitative strategies for global markets.
Internship requiring Python proficiency (required), C or C++ and Linux preferred; strong communication and analytical skills; summer program participation.
C, C++, Linux, Python
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2027 Technology, Data, AI & Ventures Summer Internship Program - Software Engineer Intern
New York City, New York, United States
$30-$35/hr HybridInternship, Full Time
New York Life
New York Life: Provides life insurance, retirement income, and investment solutions.
Undergraduate or graduate student in a technical field (CS, AI, ML, SE, EE, math, physics), strong programming skills (C,C++,Java,C#), Linux/Windows proficiency, data structures and algorithms knowledge, authorized to work in the U.S., available full-time for an 11-week summer internship.
Linux/Unix, Windows, C, C++, Java, C#
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2d
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2027 Technology, Data, AI & Ventures Summer Internship Program - Software Engineer Intern
New York, New York, United States
$30-$35/hr HybridFull Time
New York Life Insurance
New York Life Insurance: Providing life insurance, annuities, and long-term investment solutions.
Pursuing a bachelor's or master's in CS/AI/ML/SE/EE/math/physics; proficiency with Linux/Unix and Windows and one language (C,C++,Java,C#); eligible to work in the U.S.; available full-time May–Aug; hybrid (3 days/week NYC).
Linux, Unix, Windows, C, C++, Java, C#
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1w
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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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Software Engineer, Services Platform
San Francisco or New York
OnsiteFull Time
Cursor
Cursor: AI-powered code editor for professional software developers.
Experience building internal developer platforms, durable workflow orchestration (Temporal preferred), deployment tooling/CI-CD, service ownership, and strong software engineering fundamentals.
Temporal, CI/CD
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2w
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Software Engineer Team Lead
Austin or New York or San Francisco or Seattle
$269k-$335k/yr OnsiteFull Time
Fluidstack
Fluidstack: Provides high-performance cloud GPU infrastructure for AI development.
Lead a small engineering team while remaining hands-on in production code; hire and grow engineers; build internal tools and operational software; make rapid prioritization decisions.
Go, TypeScript, Python
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3d
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Senior Software Engineer, Agent Platform
New York, New York, United States
$145k-$225k/yr OnsiteFull Time
ShopMy
ShopMy: Platform connecting creators and brands for curated social commerce.
5+ YOE5+ years professional software engineering experience; strong TypeScript/Node.js skills; experience with relational databases, AWS deployment, LLMs/agents, API design, and internal platforms.
TypeScript, Node.js, NestJS, Postgres, React, AWS, ECS, ALB, CloudFormation, CloudWatch, Temporal, LangGraph, Claude Agent SDK, Claude Code, Cursor, MCP, Linear, Slack, GitHub, Notion
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Senior Software Engineer - AI Tooling
San Francisco or New York City
$191k-$263k/yr HybridFull Time
Plaid
Plaid: Provides financial data connectivity and payment infrastructure via APIs.
5+ YOE5+ years professional software engineering experience; proven production systems experience; internal tools/platform building; strong product judgment; hands-on experience with AI development tools or agents.
Retool, Scaffold
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3w
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Principal Software Engineer - Environments Engineering
Palo Alto or New York City or Jersey City
$204k-$285k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
15+ YOE15+ years software engineering experience building internal developer platforms or environment-as-a-service; expertise in Kubernetes/EKS, service mesh traffic isolation, infrastructure-as-code, hybrid infrastructure, and platform adoption at scale.
Istio, Linkerd, Kubernetes, EKS, Go, Rust, Java, Terraform, Ansible, Oracle, Kafka, Cassandra, MongoDB, CockroachDB, DynamoDB, PostgreSQL, Jenkins, Spinnaker, GitHub Actions, Argo CD, Backstage
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2w
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Senior Software Engineer - Frontend Developer Experience
San Francisco or New York City or Portland or Canada or United States
$201k-$251k/yr HybridFull Time
Mercury
Mercury: Banking services and financial software designed for startup companies.
6+ YOE6+ years frontend software experience with deep React and TypeScript knowledge; experience leading cross-team engineering projects and maintaining internal libraries; strong communication and observability skills.
React, TypeScript, Vite, CI/CD
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PT Pharmacy Intern - Pharmacy - 0546
Port Washington, New York, United States
$15-$20/hr OnsitePart Time
Stop & Shop
Stop & Shop: Operates a chain of retail grocery supermarkets.
Current pharmacy student eligible to be a pharmacy intern, valid pharmacy intern license in good standing, ability to administer vaccinations, willing to work flexible schedule including evenings and weekends, customer service and dispensing software experience.
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