67 systems software intern jobs at 56 companies in Fairfax, CA
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Enterprise Systems Software Engineer Intern (Spring 2027)
South San Francisco, California, United States
$54/hr OnsiteMultiple Commitments Available
Software engineering internship requiring systems design, data modeling, stakeholder collaboration, operational reliability, and experience delivering measurable software impact. Regular on-site work and travel required.
Python, Go, PostgreSQL, React, Kafka, gRPC, AWS, Grafana, Honeycomb, Microsoft AI, CI/CD
3mo
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Software Engineering Intern – Distributed Simulation Systems
Emeryville, California, United States
$25-$60/hr HybridFull Time, Internship
Strong programming fundamentals; experience with C++, Python, or similar systems languages; familiarity with Linux; understanding of data structures, algorithms, and concurrency; interest in distributed systems and systems engineering.
C++, Python, Linux, MuJoCo, Unity, Unreal, PyTorch, CUDA
2mo
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Software Engineering Intern
San Francisco, California, United States
OnsiteInternship
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
2mo
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Software Engineer Intern - Generalist
Fremont, California, United States
OnsiteInternship
Strong programming in C/C++, Python; strong math/theory; interest in large-scale systems; pursuing CS degree; experience with large data, real-time systems; full-stack experience preferred; statistics experience preferred.
C, C++, Python, Software Design, Big Data, Real-time Systems
1w
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Software Engineer, Intern
San Francisco or New York City
$40/hr OnsiteInternship
Currently pursuing a bachelor's or master's degree in computer science, software engineering, or a related technical field; seeks hands-on software engineering experience with AI-powered systems.
LangChain, LlamaIndex
1mo
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Software Engineer Intern - Enterprise Systems (Fall 2026)
San Francisco, California, United States
$29/hr OnsiteInternship
Currently pursuing a B.S. or M.S. in CS/ECE/CE, experience with Python, ability to design/write/test software; embedded, frontend, and devops experience are a plus.
Python
1w
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Senior Software Engineer, Business Systems - GTM
San Mateo, California, United States
$180k-$260k/yr OnsiteFull Time
5+ YOERequires 5+ years of software engineering experience focused on distributed systems at scale, customer-facing products or internal tools experience, and AWS experience with Kubernetes, Fargate, Lambda, Airflow, Athena, DynamoDB, VPC, and EC2.
AWS, Salesforce, NetSuite, Kubernetes, Fargate, Lambda, Airflow, Athena, DynamoDB, VPC, EC2
2w
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Principal Software Engineer, Engine Systems
San Mateo, California, United States
$295k-$345k/yr HybridFull Time
Expert systems-level C++ engineering with game engine internals experience, performance optimization, and familiarity with reflection bindings and code generation.
C++, Luau, Roblox Studio
3mo
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SWE Intern
San Francisco, California, United States
OnsiteInternship
1+ YOE1+ internships in production software; full-stack TS/React with backend; experience with LLMs; real-time systems; strong architectural judgment; customer-facing; ownership.
Next.js, TypeScript, PostgreSQL, Redis, Twilio, LiveKit, OpenAI, Anthropic, Deepgram, Vector Databases
3mo
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Software Engineer Intern
Redwood City, California, United States
$35-$40/hr HybridInternship, Temporary
1+ YOEBS/MS in Computer Science (or equivalent); 1+ years development in C/C++ on Linux/UNIX; strong DS&A, OS/system programming, multithreading, production troubleshooting; scripting (Perl/Python/Shell) and MySQL experience.
C, C++, Linux/UNIX, Perl, Python, Shell, MySQL, Go
1mo
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Software Developer, GO Systems
Austin or Menlo Park or Washington or New York City
$171k-$240k/yr OnsiteFull Time
8+ YOEBachelor's degree or equivalent,8+ years building and shipping full‑stack projects,experience scaling internal tooling and driving multi‑team technical roadmaps,ability to communicate across global teams.
PHP, Hack, JavaScript, React
3mo
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Software Engineer Intern - Generalist
Fremont, California, United States
$7k-$10k/mo OnsiteInternship
Pursuing BS/MS/PhD in CS or related field; strong C/C++ and Python skills; foundation in math and CS theory; experience with large data processing and real-time systems preferred.
C/C++, Python
1mo
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Software Engineer, Growth
San Francisco, California, United States
OnsiteFull Time
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
1mo
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Staff Software Engineer
Redwood City or New York City or Munich
$212k-$285k/yr HybridFull Time
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
1mo
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Senior Software Engineer
Fremont, California, United States
$135k-$150k/yr OnsiteFull Time
5+ YOE5+ years system/software development experience; strong C/C++ expertise; deep knowledge of Windows and Linux internals, multithreading, networking (TCP/IP, sockets), and performance optimization; BS/MS in CS or equivalent.
C, C++, Windows, Linux, TCP/IP, sockets, CI/CD
1mo
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Software Engineer (Agent Platform) - Intern - 2026-2027
San Francisco, California, United States
OnsiteInternship
Internship-level role requiring familiarity with Python and TypeScript, CS fundamentals in distributed systems, exposure to LLM APIs/agent frameworks, and track record of shipping end-to-end projects.
Python, asyncio, FastAPI, TypeScript, Node, React, LLM APIs, LangChain, MCP, RAG, eval frameworks
2mo
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Senior Software Engineer
Mexico City or Mexico or Mountain View
RemoteFull Time
4+ YOE4+ years software engineering experience (3+ building internal tooling), fluency in Python or Go, experience with LLM/agentic systems, GitHub Actions/CI-CD, AI-assisted dev tools, and strong communication and metrics-driven mindset.
Python, Go, LLM APIs, Anthropic Claude, OpenAI, GitHub Actions, CI/CD, Cursor, Claude Code, Copilot, MCP
1mo
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Senior Software Engineer - AI Tooling
San Francisco or New York City
$191k-$263k/yr HybridFull Time
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
2mo
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Test Software Engineer (Lead)
San Francisco, California, United States
$130k-$160k/yr OnsiteFull Time
Strong software engineering fundamentals; experience building internal tools, scripts, and test infrastructure; comfortable working close to hardware and debugging system-level issues; ability to set technical direction and lead a test team.
Python
1mo
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Software Engineering SMTS/LMTS
Bellevue or San Francisco
$149k-$260k/yr HybridFull Time
4+ YOE4+ MgmtBS in Computer Science, 4+ years (SMTS) or 6+ years (LMTS) experience in system or database internals, deep distributed systems knowledge, technical leadership, and strong Java or C skills.
Java, C, PostgreSQL
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