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Backend Python Jobs in California (NOW HIRING)

RainesDev

Founding Backend Engineer

San Francisco, CA · On-site

Job Requirements Seniority * 4+ years of experience Python backend development experience--mid to senior career level preferred, though exceptional candidates with less experience will be considered ...

Lancesoft

AI Developer

Palo Alto, CA · On-site

$55 - $82/hr

Proficient in Python and/or Go;comfortable reading and writing in the other. * Proven experience ... Strong systems and backend architecture fundamentals designing scalable, reliable systems and ...

LiteLLM AI Gateway

Backend Engineer

San Francisco, CA · On-site

$170K - $230K/yr

Bachelor's or Master's in Computer Science or related field * 1+ years of experience with Python and backend frameworks (e.g. FastAPI, Flask) * Understanding of logging best practices, error handling ...

Fuku

Senior Software Engineer

San Francisco, CA · On-site

$180K - $220K/yr

Balance frontend (React/TypeScript) and backend (Python) responsibilities * Collaborate closely with the team to deliver impactful experiences for millions of users * Work in a hybrid model (San ...

Tesla

Software Engineer, Backend

Fremont, CA · On-site

... backend systems in Python and Go, including internal web applications and data platforms • Architect new system infrastructures, databases, and integration layers to meet application needs ...

Fuku

Senior Software Engineer

San Francisco, CA · Hybrid

$180K - $220K/yr

B alance frontend (React/TypeScript) and backend (Python) responsibilities * C ollaborate closely with the team to deliver impactful experiences for millions of users * W ork in a hybrid model (San ...

Aziro Technologies LLC

AI Developer

Palo Alto, CA

Proficient in Python and/or Go; comfortable reading and writing in the other. * Proven experience ... Strong systems and backend architecture fundamentals designing scalable, reliable systems and ...

Knowtex

Backend Engineer

San Francisco, CA · On-site

Strong proficiency in Python or similar backend languages * Experience designing and building RESTful APIs * Experience working with relational and/or NoSQL databases * Understanding of distributed ...

Tyba Energy Inc

Staff Backend Engineer

San Francisco, CA · On-site +1

$180K - $230K/yr

You'll split your time between supporting our data science and optimization teams (who work with specialized Python libraries like cvxpy and neuralforecast) and building robust backend services and ...

Tessera Labs

Software Engineer, Backend

San Jose, CA · On-site

Responsibilities : • Design, develop, and maintain RESTful APIs and backend services using Python (FastAPI, SQLAlchemy). • Build reliable microservices that support data processing, automation ...

StratG Inc

Python Engineer /Lead

San Jose, CA

Architect the backend systems that power AI agents, managing long-running tasks, state persistence, and communication between components. * Implement and manage secure identity protocols (OAuth2, JWT ...

New

Hedra

Senior Backend Engineer

San Francisco, CA · On-site

Required : • Experience developing scalable services using Python, using frameworks such as ... backend services Preferred : • Experience building high availability services using CI/CD, full ...

Fuku

Senior/Staff Engineer

San Francisco, CA

$200K - $280K/yr

Python * I nfrastructure: AWS, ECS * T ools: GitHub, Linear, Slack, Notion Responsibilities * D esign and build scalable backend systems for high-throughput payments * L aunch and iterate on ...

DivIHN

AI Developer - Hybrid

Palo Alto, CA · On-site

Proficient in Python and/or Go; comfortable reading and writing in the other. * Proven experience ... Strong systems and backend architecture fundamentals designing scalable, reliable systems and ...

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All JobsBackend Python JobsBackend Python Jobs in California

Backend Python information

See California salary details

$15.8K

$146.3K

$188.5K

How much do backend python jobs pay per year?

As of May 29, 2026, the average yearly pay for backend python in California is $146,292.00, according to ZipRecruiter salary data. Most workers in this role earn between $143,600.00 and $165,300.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Backend Python Developer, and why are they important?

To thrive as a Backend Python Developer, you need strong proficiency in Python, knowledge of backend frameworks (like Django or Flask), and experience with databases, typically supported by a degree in computer science or related fields. Familiarity with tools such as Git, RESTful APIs, Docker, and cloud platforms like AWS or Azure, as well as relevant certifications, is highly valuable. Problem-solving ability, teamwork, and effective communication are critical soft skills for collaborating with cross-functional teams and troubleshooting issues. These skills and qualifications are crucial for building scalable, reliable backend systems that power modern applications.

What are common challenges faced by Backend Python developers when integrating with third-party APIs?

Backend Python developers often encounter challenges such as inconsistent API documentation, unexpected data formats, and rate limiting when integrating with third-party APIs. These issues require strong debugging skills, careful error handling, and proactive communication with API providers. Additionally, developers must ensure secure authentication, maintain up-to-date dependencies, and write scalable code to handle varying loads. Collaborating closely with frontend teams is also essential to provide seamless end-to-end functionality.

What are backend Python developers?

Backend Python developers are software engineers who specialize in building and maintaining the server-side components of web applications using the Python programming language. They focus on databases, application logic, APIs, and integration with front-end systems, ensuring that data is processed and served efficiently. These developers often work with frameworks like Django or Flask and collaborate with frontend developers, DevOps, and other team members to deliver robust and scalable web solutions.

What is the difference between Backend Python vs Backend Java?

AspectBackend PythonBackend Java
Required CredentialsBachelor's in CS, Python certificationsBachelor's in CS, Java certifications
Work EnvironmentWeb development, data science, startupsEnterprise applications, large-scale systems
Industry UsageTech startups, data analytics, AIBanking, finance, large corporations
Common Search/ComparisonYesYes

Backend Python and Backend Java are both popular server-side roles but differ in their typical use cases and industry focus. Python is favored for rapid development, data science, and startups, while Java is preferred for large-scale, enterprise applications. Your choice depends on the industry and project requirements.

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 are popular job titles related to Backend Python jobs in California? For Backend Python jobs in California, the most frequently searched job titles are:
What job categories do people searching Backend Python jobs in California look for? The top searched job categories for Backend Python jobs in California are:
What cities in California are hiring for Backend Python jobs? Cities in California with the most Backend Python job openings:
Backend Python jobs near you

Founding Backend Engineer

RainesDev

San Francisco, CA • On-site

Full-time

Posted 25 days ago

Job description

Job Description
About the company Our client is building the AI-enabled infrastructure to power the next generation of hiring - reimagining how people discover and secure their next career opportunity. We believe that everyone deserves an all-star talent agent helping them plan, manage, and accomplish their career goals, no matter their background, location, or education.
Through our flagship product, Copilot, we've helped over 1M+ job seekers discover and apply to over 100 million jobs - and we've done this with a tight-knit team of just 7 people. We're rapidly expanding on both the candidate and recruiter fronts, focused on our vision of building a common app and personal AI agent for your career.
Backed by top-tier investors including Craft and YCombinator, we're a mission-driven team working to democratize the job search and disrupt the way hiring works today.
Roles and Responsibilities
  • Design, develop, and maintain scalable backend services to help us serve millions of users daily.
  • Work closely with the product team to launch new features.
  • Collaborate with frontend engineers to design and implement RESTful APIs and shared API client libraries.
  • Architect and manage deployment of our cloud infrastructure on GCP.
  • Ensure high performance, reliability, and security of backend systems.

Job Requirements Seniority
  • 4+ years of experience Python backend development experience--mid to senior career level preferred, though exceptional candidates with less experience will be considered if they have strong Python expertise and experience scaling large systems.

Work experience
  • Track record of building production-grade backend services from scratch
  • Previous experience as a founder or founding engineer is highly preferred.

Hard skills
  • Strong Python backend development expertise
  • Demonstrated ability to scaffold and set up projects independently.
  • Knowledge of GCP and cloud-based scaling solutions.
  • Experience with SQL optimization, HTTP protocols, and backend infrastructure.
  • Node.js/TypeScript experience
  • Simplify is looking for incredible senior software engineers willing to do IC. They should be fluent in AI, including OpenAI/Claude API & AI dev tools (Cursor, Windsurf, Devin, etc.).

Miscellaneous
  • Must be willing to work in-office 4+ days per week
  • Must be comfortable in early-stage startup environment (team of 7, doubling to 14)
  • Active GitHub profile or contributions to open-source projects (especially in the Python ecosystem).

Traits to avoid
  • No Python experience: This is a hard filter.
  • Lack of scalability experience: Candidates should have worked on systems handling high traffic.
  • Contract or staffing firm backgrounds: These candidates are less likely to meet the bar.

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