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112 software developer intern jobs at 82 companies in Fairfield, CA

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Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
2w
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Software Engineer Intern (Fall 2026)
South San Francisco, California, United States
$54/hr OnsiteFull Time, Internship
Zipline
Zipline: Operates an autonomous drone delivery system for medical supplies.
Must have completed second year of undergraduate studies (masters/PhD also eligible); strong CS fundamentals, passion for software development and product-focused engineering.
React Native, Python, Go
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2mo
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Software Engineer Intern
San Francisco, California, United States
OnsiteFull Time
Phonely
Phonely: AI-powered voice platform for automated customer phone interactions.
Pursuing or recently completed degree in Computer Science or related field; experience with JavaScript/TypeScript and modern frontend frameworks; familiarity with Next.js; strong problem-solving and debugging skills; ability to work with customers and teammates; eager to learn quickly.
JavaScript, TypeScript, React, Next.js, Python, AWS, GCP, Kubernetes, Redis, Datadog
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2mo
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Software Engineer Intern
San Francisco, California, United States
OnsiteInternship
Kos
Kos: AI-powered automated financial operations for industrial infrastructure.
CS/ML student; hands-on project or internship; proficient in Python, TypeScript, or Go; experience with LLMs/agents; production-ready coder; able to work in SF onsite.
Python, TypeScript, Go, LLMs, agents, ERP integration
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3mo
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Software Engineer Intern (Fall 2026)
San Francisco, California, United States
HybridInternship
Notion
Notion: Provides a unified workspace for notes, documents, and project management.
0+ YOEPursuing a bachelor's or master's in CS/engineering; must graduate before Summer 2027; prior internship experience; proficient in TypeScript, Node.js, or Python.
Typescript, Node.js, Python, React
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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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3d
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Software Engineer Intern
San Francisco, California, United States
$11k/mo OnsiteFull Time
Serval: AI platform for automating IT and enterprise service workflows.
Currently pursuing a technical degree (graduation 2026–2028), strong CS fundamentals, familiarity with a backend language (Go/Java/Python), clear communication, and eagerness to learn in a startup environment.
Go, gRPC, Kubernetes, React, TypeScript, AWS, Terraform
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1w
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Software Engineer, Intern
San Francisco, California, United States
OnsiteInternship, Full Time
Pylon
Pylon: AI-native customer support platform for B2B companies.
Pursuing a BS/MS in computer science or related field, graduating Dec 2026–Summer 2027; willing to relocate to San Francisco; strong full‑stack fundamentals; internship or side projects preferred.
React, Golang, GraphQL, AWS
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2mo
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Software Engineer Intern (Fall / Winter 2026)
San Francisco or Canada
RemoteInternship
Cohere
Cohere: Provides enterprise-grade large language models and AI software platforms.
Enrolled in a post-secondary program; available for a full-time 3-6 month internship; remote; roles across frontend, backend, full-stack, and infrastructure.
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1mo
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Software engineer, developer tooling
San Francisco, California, United States
$174k-$230k/yr HybridFull Time
Watershed
Watershed: Software platform for corporate carbon accounting and climate reporting.
3+ YOE3+ years software engineering experience; building internal tools or developer platforms; comfortable across stack (CLI/tools, services, CI); product sense for internal products; familiar with JavaScript/TypeScript, GCP, GitHub Actions, Playwright, Temporal, Terraform.
JavaScript, TypeScript, GCP, GitHub Actions, Playwright, Temporal, Terraform
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3w
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Senior Software Engineer
Fremont, California, United States
$135k-$150k/yr OnsiteFull Time
Fiery
Fiery: Provider of digital front ends and print workflow solutions.
5+ YOE5+ years system/software development experience; strong C/C++ skills; expertise in Windows and Linux, OS internals, networking, debugging, and performance optimization.
C, C++, Windows, Linux, TCP/IP, sockets, CI/CD
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2w
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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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1mo
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Software Engineering Intern
San Francisco, California, United States
OnsiteInternship
SnailWorks
SnailWorks: SnailWorks provides mail tracking and delivery intelligence software for marketers.
Enrolled in Software Engineering/CS program; proficient in TypeScript, Python, or Go; able to read code; curious about data systems and LLM-driven apps; strong written communication; operator mindset.
TypeScript, Python, Go
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6d
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SAP SuccessFactors iXp Intern - AI Software Developer
San Ramon, California, United States
$15-$62/hr HybridFull Time
SAP
SAPFrankfurt Stock Exchange: SAP: Sells enterprise resource planning and business management software solutions.
Must be a current student or recent graduate; bachelor's in computer science preferred; familiarity with Java, Node.js, Python, REST, Git, and cloud-native development; strong communication skills.
Java, Spring, Node.js, Python, HTML5, JavaScript, REST, Git, Jenkins, Docker, Kubernetes, AWS, Azure, GCP, CI/CD
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2w
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Software Engineer, Growth
San Francisco, California, United States
OnsiteFull Time
Broccoli
Broccoli: AI agents for home service business front-office operations.
Strong software engineering fundamentals, production-quality code, full-stack with backend focus, experience building internal tools or growth systems, comfortable in ambiguity and cross-functional work.
ServiceTitan
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1mo
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Software Engineer, Internal Tools
San Francisco, California, United States
$120k-$160k/yr OnsiteFull Time
Metriport
Metriport: Provides an open-source API for healthcare data interoperability.
3+ YOE3+ years in software engineering, automation, or internal tools; TypeScript and React proficiency; integration experience; security mindset; self-directed; willing to relocate to San Francisco Bay Area.
TypeScript, React, AWS, REST, OAuth, mTLS, Websockets, Slack, GitHub Actions, PostHog, GSuite, Zapier, n8n, Make
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6d
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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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2mo
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Software Engineer - Platform & Infrastructure
Washington or San Francisco
$165k-$220k/yr HybridFull Time
Promise
Promise: Providing payment and financial assistance systems for government agencies.
5+ YOE5+ years of software or infrastructure experience in a platform/infra/SRE role; production Kubernetes; Terraform IaC; internal systems; on-call; AI tools experience.
Kubernetes, Terraform, Google Cloud Platform, CI/CD, ArgoCD, Typescript, Golang, AI tools
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1d
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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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2mo
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Senior Software Development Engineer, Developer Tools
Belgrade or The Hague or Taipei or Burbank or Walnut Creek
$132k-$194k/yr HybridFull Time, Contract
Network Optix
Network Optix: Software platform for building and managing intelligent video solutions.
Senior-level software engineer focused on CI/CD automation, building internal tools and improving build pipelines.
Python, Git, Bash, PowerShell, GitLab, Jira, Artifactory, CMake, Ninja, Conan, Jenkins
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3mo
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Software Engineer, Engineering Acceleration | Consumer Devices
San Francisco, California, United States
$230k-$342k/yr HybridFull Time
OpenAI
OpenAI: Develops artificial intelligence models and generative AI software services.
7+ YOE7+ years software engineering; 5+ years building developer productivity, CI/CD, internal platforms, or engineering systems; strong architecture and platform design; hybrid work in San Francisco.
Buildkite, Bazel, Terraform, PostgreSQL, Cosmos DB, Kafka
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