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Internship Backend Python Jobs in California (NOW HIRING)

Software Engineer Internship This is a high-impact internship where you'll write real code, ship ... Experience with backend development (Python or Node.js) * Familiarity with cloud platforms (AWS ...

Founding Engineer

San Francisco, CA · On-site

$175K - $250K/yr

Backend (Python, Go, Rust, TypeScript, or similar) + distributed systems; full-stack with ML model ... Requirements * 3+ years backend + full-stack shipping experience (excluding internships) * Raw ...

... internships, projects, or open-source contributions count). * Familiarity with at least one backend programming language (e.g., JavaScript/Node.js, Python, or similar). * Basic knowledge of databases ...

... internships, projects, or open-source contributions count). * Familiarity with at least one backend programming language (e.g., JavaScript/Node.js, Python, or similar). * Basic knowledge of databases ...

... internships, projects, or open-source contributions count). * Familiarity with at least one backend programming language (e.g., JavaScript/Node.js, Python, or similar). * Basic knowledge of databases ...

Senior Python Engineer

Ontario, CA · On-site +1

$123K - $166K/yr

Enjoy collaborating with teammates, and mentoring junior engineers and interns * Are self-motivated ... PyMongo, Django MongoDB Backend, PyMongoArrow, LangChain MongoDB) and related software ...

Applied AI Engineer

Sunnyvale, CA · On-site

$123K - $151K/yr

Technical Skills Core Backend & Platform • Proficiency in at least one modern backend language (e.g., Python, Go) demonstrated through coursework, personal projects, or internships. • Familiarity ...

Applied AI Engineer

Sunnyvale, CA · On-site

$123K - $151K/yr

Technical Skills Core Backend & Platform Proficiency in at least one modern backend language (e.g., Python, Go) demonstrated through coursework, personal projects, or internships. Familiarity with ...

Applied AI Engineer

Sunnyvale, CA · On-site

$123K - $151K/yr

Technical Skills Core Backend & Platform Proficiency in at least one modern backend language (e.g., Python, Go) demonstrated through coursework, personal projects, or internships. Familiarity with ...

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Internship Backend Python information

What are the most commonly searched types of Backend Python jobs in California? The most popular types of Backend Python jobs in California are:
What cities in California are hiring for Internship Backend Python jobs? Cities in California with the most Internship Backend Python job openings:
Infographic showing various Internship Backend Python job openings in California as of June 2026, with employment types broken down into 5% Internship, 2% As Needed, 82% Full Time, 4% Part Time, 1% Temporary, and 6% Contract. Highlights an 90% Physical, 1% Hybrid, and 9% Remote job distribution.

Software Engineer Intern

Phonely Ltd

San Francisco, CA • On-site

Full-time

Posted 20 days ago


Job description

Software Engineer Internship
This is a high-impact internship where you'll write real code, ship features, and see your work in production.
Note: This is an in-office role, 5 days a week in San Francisco.
What You'll Do
  • Investigate and troubleshoot real customer issues across frontend and backend systems
  • Work closely with customers and internal teams to diagnose bugs, performance bottlenecks, and reliability problems
  • Build internal tooling and dashboards to improve debugging, monitoring, and operational workflows
  • Help monitor production systems and support incident response efforts
  • Assist engineers in identifying root causes and shipping fixes quickly
  • Build and maintain components for high-performance web applications using React and Next.js
  • Collaborate with engineers to integrate APIs, real-time systems, and observability tooling
  • Improve UI/UX by building responsive and user-friendly interfaces
  • Support performance optimization efforts across rendering, caching, and latency
  • Write clean, maintainable, and well-documented code
  • Participate in code reviews, team discussions, and product development

Qualifications
  • Currently pursuing or recently completed a degree in Computer Science or related field
  • Experience with JavaScript/TypeScript and modern frontend frameworks (React preferred)
  • Familiarity with Next.js or willingness to learn quickly
  • Strong problem-solving and debugging skills
  • Comfortable investigating technical issues and working through ambiguous problems
  • Basic understanding of APIs, async programming, and web fundamentals
  • Exposure to full-stack development through projects, coursework, or internships
  • Strong communication skills and ability to work directly with customers and teammates
  • Eagerness to learn quickly in a fast-paced environment

Nice to Have
  • Experience with backend development (Python or Node.js)
  • Familiarity with cloud platforms (AWS, GCP)
  • Experience with observability or monitoring tools
  • Familiarity with databases (Firebase, Supabase, or similar)
  • Interest in AI, real-time systems, infrastructure, or voice technologies

What You'll Gain
  • Real-world experience debugging and operating production systems
  • Hands-on exposure to customer-facing engineering and issue investigation
  • Mentorship from experienced engineers
  • Experience working with modern infrastructure, observability, and AI systems
  • Opportunity to make meaningful contributions to a fast-growing company

Our Tech Stack
  • Frontend: React, Next.js, TypeScript
  • Backend: Python, microservices, async systems
  • Cloud & Infra: AWS, GCP, Kubernetes, Redis
  • Databases: Firebase, Supabase
  • Observability: Datadog, logging, metrics, tracing