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Senior Python Startup Jobs in California (NOW HIRING)

Evolver

Senior Python Developer

Palo Alto, CA · On-site

$142K - $192K/yr

We are an innovative technology startup focused on transforming professional services through ... As a Senior Python Developer, you will lead the design, development, and deployment of scalable ...

Evolver

Senior Python Developer

Palo Alto, CA · Hybrid

$142K - $192K/yr

We are an innovative technology startup focused on transforming professional services through ... As a Senior Python Developer, you will lead the design, development, and deployment of scalable ...

Evolver

Senior GenAI Engineer (Python)

Palo Alto, CA · On-site

$142K - $192K/yr

About Us: We are an innovative AI startup focused on transforming professional services through ... As a Senior GenAI Developer, you will lead the design, development, and deployment of scalable ...

Evolver

Senior GenAI Engineer (Python)

Palo Alto, CA · Hybrid

$142K - $192K/yr

About Us: We are an innovative AI startup focused on transforming professional services through ... As a Senior GenAI Developer, you will lead the design, development, and deployment of scalable ...

DigitalT3

Be Seen First

Senior GenAI Engineer (Python)

San Francisco, CA · On-site

$170K - $200K/yr

As a Senior GenAI Developer, you will lead the design, development, and deployment of scalable ... Comfortable working in a fast-paced, dynamic startup culture. * Eagerness to learn and contribute ...

Oscar Technology

AI Engineer

San Jose, CA · On-site

$230K - $280K/yr

  • Medical

  • Dental

  • Vision

  • PTO

Senior AI Engineer / Machine Learning Engineer / Python Software Engineer Location: San Jose, CA Salary: $230K - $280K An AI startup is hiring Mid and Senior Python Software Engineer to join a small ...

Jobsbridge

Python Engineer

San Francisco, CA · On-site

ElasticSearch or Lucene - Experience in a fast-paced/customer-centric agile startup environmentSo, if you are a Senior Software Engineer with experience in Object-Oriented Python Development, please ...

Astra

Sr Staff Python Engineer

Alameda, CA · On-site

They are seeking a Sr. Staff Python Engineer to develop software that automates testing and ... Astra is a rocket launch startup that provides satellite delivery and launch services. Founded in ...

Astra

Sr Staff Python Engineer

Alameda, CA · On-site

The Sr. Staff Python Engineer will develop software to automate testing and launching rockets ... Astra is a rocket launch startup that provides satellite delivery and launch services. Founded in ...

Astra

Sr Staff Python Engineer

Alameda, CA · On-site

They are looking for a Sr. Staff Python Engineer to develop software that automates the testing and ... Astra is a rocket launch startup that provides satellite delivery and launch services. Founded in ...

Evolver

GenAI Engineer (Python)

Palo Alto, CA · On-site

About Us: We're an innovative tech startup on a mission to change the game in professional services ... Partner with product managers, senior developers, and industry experts to understand project goals ...

Evolver

GenAI Engineer (Python)

Palo Alto, CA · On-site

About Us: We're an innovative tech startup on a mission to change the game in professional services ... Partner with product managers, senior developers, and industry experts to understand project goals ...

Evolver

GenAI Engineer (Python)

Palo Alto, CA · On-site

Evolver is an innovative tech startup focused on transforming professional services through ... Partner with product managers, senior developers, and industry experts to understand project goals ...

Evolver

GenAI Engineer (Python)

Palo Alto, CA · On-site

Evolver is an innovative tech startup focused on transforming professional services through ... Partner with product managers, senior developers, and industry experts to understand project goals ...

Stealth Social Media Startup

Senior Data Engineer

San Jose, CA · On-site

$124K - $168K/yr

Kai is a stealth social media startup focused on rebuilding cybersecurity through AI technology ... in Python and SQL -- these are how our systems are written • Strong data modeling skills -- you ...

Checkr

Senior Software Engineer (Python), Mortgage

San Francisco, CA · On-site +1

$144K - $190K/yr

  • Medical

  • Dental

  • Vision

  • PTO

Think of it like joining a startup within a startup! As a Senior Software Engineer on the Truework ... Proficiency in Python and Javascript (or similar languages/frameworks) * Experience developing ...

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Senior Python Startup information

What is the difference between Senior Python Startup vs Python Developer?

AspectSenior Python StartupPython Developer
CredentialsBachelor's or higher in CS, experience in startupsBachelor's in CS or related field, some experience
Work EnvironmentFast-paced startup, cross-functional teamsEstablished companies or startups, team-based
Industry UsageTech startups, innovative projectsVaried industries, software development
Search IntentSenior roles, startup environment, advanced skillsEntry to mid-level roles, Python programming

Senior Python Startup roles typically require more experience, leadership skills, and familiarity with startup environments. Python Developers may have similar technical skills but often at an earlier career stage and in more established settings. The main difference lies in experience level and work context, with Senior Python Startup positions emphasizing leadership and startup agility.

What are the most commonly searched types of Python Startup jobs in California? The most popular types of Python Startup jobs in California are:
What are popular job titles related to Senior Python Startup jobs in California? For Senior Python Startup jobs in California, the most frequently searched job titles are:
What job categories do people searching Senior Python Startup jobs in California look for? The top searched job categories for Senior Python Startup jobs in California are:
What cities in California are hiring for Senior Python Startup jobs? Cities in California with the most Senior Python Startup job openings:
Senior Python Startup jobs near you
Infographic showing various Senior Python Startup job openings in California as of August 2026, with employment types broken down into 2% Internship, 85% Full Time, 5% Part Time, 2% Temporary, and 6% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Senior Python Developer

Evolver

Palo Alto, CA • On-site

$142K - $192K/yr

Full-time

Re-posted 28 days ago

Job description

About Us:
We are an innovative technology startup focused on transforming professional services through cutting-edge software solutions and deep domain expertise. Our platform automates complex workflows, engaging humans only when needed to maximize efficiency and accuracy. Join us at the forefront of innovation, where your expertise will directly shape the future of professional services.
Role Overview:We are looking for an experienced Python backend/application developer for our AI platform. As a Senior Python Developer, you will lead the design, development, and deployment of scalable applications that redefine how professional services are delivered.
Key Responsibilities:
  • Platform Development: Build robust enterprise software solutions with modern architectures and best practices.
  • System Optimization: Enhance data retrieval from structured/unstructured sources, optimize application performance, and ensure scalability.
  • Collaboration: Work closely with cross-functional teams, including domain experts and product managers, to deliver solutions aligned with business needs.
  • Mentorship: Guide and support junior developers to foster technical growth within the team.
  • Innovation: Stay ahead of emerging trends in software development to continuously elevate our technical capabilities.

Qualifications:
Experience:
  • 6+ years of professional experience in Python development, including deploying production-grade applications.

Education:
  • Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
Mandatory Technical Skills:
  • Mastery of Python. (We'll test you.)
  • Strong understanding of backend and API development, database design, and software architecture patterns.
  • Ability to interact with AI programming IDEs like Cursor, Windsurf, and Antigravity to improve productivity without sacrificing standards or vibe-coding unmaintainable code.
  • Fluent in git. (Using GitKraken a plus.)
  • Working ability with the Linux command line.
Nice-to-Have Technical Skills:
  • Experience with calling LLMs through code.
  • Experience with MongoDB or Azure Cosmos DB.
  • Experience with using Azure.
  • Experience with Azure AI Search.
  • Experience in the domain of corporate transactional taxes.
Soft Skills:
  • Excellent communication and collaboration skills in team-driven environments.
  • Analytical mindset with a strong focus on problem-solving.
  • Comfortable working in a fast-paced, dynamic startup culture.
  • Eagerness to learn and contribute to cutting-edge technologies.
  • Pride in one's code.

Benefits
  • Competitive Compensation: Tailored to your experience and skill set.
  • Flexible Work Arrangements: Hybrid working model for work-life balance.
  • Career Growth: Opportunities for professional development and leadership roles.
  • Innovative Culture: Work on transformative technologies and make an impact in the AI space.

Apply