Top Software Engineer Internship in San Francisco, CA

Twelve-week software engineering internship building production crypto and blockchain products at Coinbase. Interns write tested code, collaborate with engineering, design, and product teams, participate in code reviews, own an end-to-end project, and learn blockchain concepts. Candidates need programming experience, problem-solving ability, familiarity with web, mobile, backend, or infrastructure development, and responsible generative AI usage with human oversight.

Paid 12-week software engineering internship involving coding and shipping product features, full-lifecycle development, technical training, mentorship, and collaboration on Atlassian cloud and core products. Interns will apply programming, data structures, algorithms, and software design fundamentals while working with senior engineers. Preferred experience includes prior software engineering projects or internships, AI/ML exposure, and familiarity with design patterns.

Software Engineer Interns design, implement, test, and improve production software for a distributed SQL database. Responsibilities may include query processing, optimization, storage engines, indexing, distributed systems, concurrency, performance, reliability, and fault tolerance. Interns participate in technical discussions, code reviews, documentation, and cross-functional collaboration while gaining hands-on experience in database and systems engineering.

Build core systems at the intersection of software, hardware, and finance. Own full product lifecycles from customer discovery through production deployment, create abstractions for complex legacy systems, and design production-grade LLM solutions for underwriting, compliance, and document processing. The role emphasizes backend systems, infrastructure, architecture, full-stack development, and occasional field travel.

Software Engineer Interns will design, develop, and maintain software across platform, infrastructure, inference, and product engineering teams. Responsibilities include building features, writing maintainable code, collaborating cross-functionally, participating in code reviews, debugging, and optimizing performance. The 12-week, on-site internship is based at the company headquarters in San Francisco and may involve cloud infrastructure and open-source projects.

Software Engineer Interns will design, develop, and maintain software across platform engineering, infrastructure, SRE, and inference teams. Responsibilities include building product features, writing maintainable code, collaborating cross-functionally, participating in code reviews, debugging, and optimizing performance. Interns will contribute to projects from initial scope through production and may work on cloud infrastructure or open source initiatives.

Software engineering internship focused on building and shipping full-stack features for Persona’s identity platform. Interns will design scalable systems, work directly with customers, collaborate across product and business teams, and receive dedicated mentorship. Responsibilities include developing product features, handling large-scale data workloads, applying data modeling and schema design, and delivering projects independently and collaboratively in a fast-paced startup environment.

Conduct exploratory research, evaluate theories statistically, present findings to focus groups, and design and implement software. The intern will work on autonomous driving technology while collaborating with technical teams. Required qualifications include current PhD enrollment in computer science or a related technical field, Python programming fluency, statistical knowledge, and basic machine learning knowledge.

Build and ship production backend systems supporting talent platforms and applied AI data workflows. Interns own projects end-to-end, collaborate with product, design, researchers, and AI companies, and develop scalable systems that impact customers. Responsibilities include writing production-grade code, designing systems, working with APIs and databases, and contributing to AI-focused products in a fast-paced, in-person environment.

Software engineering interns join collaborative Figma teams to build and ship user-facing features, infrastructure, developer tools, security systems, tests, or other projects. Interns collaborate with engineers, product managers, designers, and QA; participate in planning, documentation, code reviews, and feedback; and complete a meaningful project during the internship.

Analyze differences between machine-learning and production behavior, cluster examples to identify trends, assess whether behaviors are desirable, and port desirable ML behavior into production systems. Collaborate on complex autonomous-driving software involving perception, decision-making, robotics, and deep learning.

Software Engineering Interns will collaborate with engineering and cross-functional teams on real-world projects, contribute to key engineering initiatives, build technical and professional skills, and present their work at the end of the program. Interns receive mentorship, workshops, and career development support while working full-time in the New York City office for eight weeks.

Software Engineer Intern contributing to SingleStore’s distributed SQL database. Responsibilities include developing and testing database features, query processing, storage engines, indexing, distributed systems, concurrency, performance, scalability, and fault tolerance. The role involves code reviews, technical design, debugging, documentation, and collaboration with engineering and product teams.

Software Engineer Intern contributing to cloud-native database services, including workspace lifecycle management, provisioning, scaling, backups, APIs, reliability, observability, testing, and production deployment. The role involves distributed systems, cloud infrastructure, backend development, debugging, code reviews, and collaboration with engineering and product teams.

Work as a full‑stack software engineering intern building and improving Notion with an AI-first mindset. Write clean, secure, tested code across web services, databases, and applications; design new product capabilities; debug and enhance features; collaborate cross-functionally and apply AI tools such as LLMs and embeddings.

Summer internship building and debugging full‑stack features (web services, databases, applications) with an AI-first mindset. Write clean, tested code, design product capabilities, prototype AI features, and collaborate cross-functionally in Notion’s NY or SF offices during the internship period.

Backend software engineering internship focused on owning projects, writing reliable and tested code, participating in code reviews, refactoring, and supporting continuous integration and deployment. Interns collaborate with experienced engineers and contribute to user-facing Lyft products. The role requires strong computer science fundamentals, database experience, familiarity with real-time technology and mobile development, and availability for a Summer 2027 hybrid internship in San Francisco.

Software Engineer Interns will design and build reliable products, scalable frontend applications, and APIs for Zip’s web-based procurement platform. They will collaborate with product and customer-facing teams, write maintainable code, and solve technical challenges with mentorship. The internship is full-time and hybrid at Zip’s San Francisco headquarters during Summer 2027.

Software Engineer Interns will build and enhance customer-facing front-end and back-end applications using TypeScript, JavaScript, React, Python, databases, and SQL. They will explore AI applications, develop proofs of concept, solve engineering problems, test and iterate on solutions, and collaborate with experienced engineers. The internship requires on-site work in San Francisco Monday through Thursday, with remote Fridays, and offers potential school-year work and post-graduation employment.

Software Engineer Interns spend 12 weeks contributing to collaborative engineering teams at SingleStore. They develop features, test software, own projects end-to-end, and continuously deploy work to production. Interns gain exposure to the product lifecycle and business while working with experienced engineering mentors and cross-functional teams. The role requires strong computer science fundamentals, programming ability in JavaScript, Golang, or TypeScript, and an interest in building reliable software.

The Software Engineer Intern will develop and validate brain-computer interface software, collaborate with users, and implement new features.

A 12-week software engineering internship involving feature development, software testing, and continuous production deployment. Interns own projects end-to-end, collaborate across engineering and business teams, and receive mentorship while gaining experience with product development and reliable, real-time software systems.

Twelve-week, in-person software engineering internship in San Francisco. The intern will own and ship a meaningful product or infrastructure project, potentially involving search quality, data sources, LLMs, internal tools, developer experience, testing, or user experiences. Responsibilities include building alongside engineers, learning the technology stack, seeking feedback, and presenting completed work. The role includes manager and mentor support, cohort programming, and a $60 hourly wage plus housing or relocation support.

Learn new technologies, design and build scalable infrastructure for complex mortgage-servicing regulations, understand the regulated finance industry, and collaborate with Product and Design to improve customer experiences. The intern will contribute to robust software applications and work cross-functionally within a highly technical engineering team.

Software engineering intern responsible for owning a scoped project and building production-quality features across frontend, backend, full-stack, real-time, or forward-deployed systems. Duties include developing telemetry and geospatial interfaces, backend services, APIs, event-driven systems, tests, developer tooling, and data pipelines. The intern will support integration and test events, debug distributed systems and networks, explain technical tradeoffs, and present their work at the end of the internship.