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Senior Backend Developer Python Jobs in California

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Senior Backend Engineer

San Francisco, CA · On-site

$200K - $500K/yr

About the role Hiring a senior backend engineer to join our team and focus on system architecture ... If you have experience writing these systems in Python/Go/Java that's cool too, as long as you're ...

Finvest

Senior Backend Engineer

San Francisco, CA · On-site

We are looking for a senior engineer to join our team in San Francisco. As one of the founding ... Fluent in Node/Typescript, Python, Postgres, and AWS * Proven ability to architect complex ...

Nash, Inc.

Senior Backend Engineer

San Francisco, CA · On-site

Senior Backend Engineer San Francisco / Hybrid / Remote About Nash Logistics is the substrate ... Strong proficiency in Python and modern backend frameworks. Experience with Go or TypeScript is a ...

Hubs.is

Senior Backend Engineer

San Francisco, CA · On-site +1

Collaborate with frontend, product and devops teams to ensure seamless integration. * Architect for ... TypeScript, Node.js, Python. * Databases : PostgreSQL and MongoDB at scale. * Performance ...

Picnic

Senior Backend Engineer

Mountain View, CA · On-site

They are seeking a Senior Backend Engineer to architect and scale their real-time food ordering and ... improving developer productivity through tooling, patterns, or process improvements Company

BuildOps

Senior Backend Engineer

San Francisco, CA · On-site

$168K - $210K/yr

As a Senior Backend Engineer , your primary focus will be building and enhancing the backend ... Additional backend languages or ecosystems (e.g., Python ) for services, automation, or data ...

BuildOps

Senior Backend Engineer

San Francisco, CA · On-site

$168K - $210K/yr

As a Senior Backend Engineer , your primary focus will be building and enhancing the backend ... Additional backend languages or ecosystems (e.g., Python ) for services, automation, or data ...

HumanSignal

Senior Backend Engineer

San Francisco, CA

$140K - $200K/yr

You'll design and operate services in Python/Django that power labeling and evaluation workflows at ... and improve developer experience. * Participate in architecture discussions and code reviews ...

Shimento, Inc.

Lead React Developer /Python

Santa Clara, CA

$163K - $200K/yr

Backend Leadership (Python): Architecting, designing, and maintaining complex Python-based backend ... Guiding a team of engineers, conducting code reviews, mentoring, and enforcing best practices using ...

TekShapers

Python Backend Engineer

San Jose, CA · On-site

Job Title - Python Backend Engineer Job Location - San Jose, CA (On-Site) Duration - 12 Months Experience level - L3 Mandatory Skills - Python Backend Engineer - We are looking for a Python Backend ...

Software Technology Inc

Backend Engineer

San Bruno, CA · On-site

Sr. Backend Engineer Sr. Backend Engineer at Walmart Description: Senior Software Engineer position will be responsible for hands-on development as well as lead the development of Next Generation ...

Comcast

Sr. Backend Engineer - Xumo

Irvine, CA · Remote

As a Senior Backend Engineer on the Xumo Software Engineering Team, you will play a key role in building and optimizing the backend infrastructure that powers our video streaming services. This ...

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Senior Backend Developer Python information

What does a Senior Backend Developer Python do?

A Senior Backend Developer Python designs, builds, and maintains the server-side logic and databases for web applications, primarily using the Python programming language. They are responsible for ensuring high performance, responsiveness, and security of applications, integrating with front-end elements, and working closely with other developers and stakeholders. Additionally, they often mentor junior developers, review code, and contribute to architectural decisions to ensure scalable and robust backend systems.

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

AspectSenior Backend Developer PythonBackend Developer Python
Required Experience5+ years, leadership skills1-3 years, foundational skills
CertificationsRelevant certifications (e.g., AWS, Python)Optional, entry-level certifications
Work EnvironmentDesigning architecture, mentoringImplementing features, coding
ResponsibilitiesSystem design, team coordinationCode development, bug fixing

The main difference between a Senior Backend Developer Python and a Backend Developer Python lies in experience, responsibilities, and leadership. Senior developers typically lead projects and mentor others, while backend developers focus on coding and feature implementation. Both roles require strong Python skills and relevant certifications, but senior roles demand more experience and strategic involvement.

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

To thrive as a Senior Backend Developer Python, you need deep expertise in Python programming, software architecture, and experience with databases and API development, usually supported by a computer science degree and several years of professional coding experience. Familiarity with frameworks like Django or Flask, cloud platforms (e.g., AWS, Azure), and version control systems such as Git is typically expected, along with knowledge of containerization tools like Docker. Strong problem-solving skills, collaboration, and clear communication set top performers apart in this role. These skills ensure the development of robust, scalable backend systems that meet business needs and support seamless integration with other technologies.

What are some common challenges faced by Senior Backend Developers working with Python, and how can they be addressed?

Senior Backend Developers working with Python often encounter challenges such as ensuring high performance and scalability of applications, especially when dealing with large volumes of data or high user traffic. Managing dependencies and maintaining clean, modular codebases can also be demanding in complex projects. These challenges are typically addressed by leveraging advanced Python frameworks, implementing robust testing practices, and collaborating closely with DevOps and frontend teams to optimize system architecture and deployment pipelines. Continuous learning and staying updated with best practices in Python and backend development are also key to overcoming these obstacles.
What are the most commonly searched types of Backend Developer Python jobs in California? The most popular types of Backend Developer Python jobs in California are:
What are popular job titles related to Senior Backend Developer Python jobs in California? For Senior Backend Developer Python jobs in California, the most frequently searched job titles are:
What job categories do people searching Senior Backend Developer Python jobs in California look for? The top searched job categories for Senior Backend Developer Python jobs in California are:
What cities in California are hiring for Senior Backend Developer Python jobs? Cities in California with the most Senior Backend Developer Python job openings:
Senior Backend Developer Python jobs near you
Infographic showing various Senior Backend Developer Python job openings in California as of June 2026, with employment types broken down into 100% Full Time. Highlights an 56% In-person, 22% Hybrid, and 22% Remote job distribution.
Backend Python Engineer for API Services

Backend Python Engineer for API Services

OSI Engineering, Inc.

Cupertino, CA • On-site, Remote

$50 - $60/hr

Other

Posted 28 days ago

Job description

Backend Python Engineer for API Services
We are seeking a Backend Developer with a strong Data Engineering focus to build secure APIs, backend services, and enterprise data access solutions in a fast-paced, collaborative environment. This role focuses on developing Python-based backend systems and enabling scalable access to internal enterprise data platforms.
You will design and maintain backend services, REST APIs, and secure enterprise integrations within a cloud-based data environment. Initial priorities include building secure REST APIs and MCP integrations that expose internal enterprise data systems for broader platform use. Over time, the role may expand into ETL workflows, orchestration pipelines, data transformations, and cloud data platform initiatives using tools such as Airflow, DBT, and Snowflake. You will collaborate closely with engineering teams to build scalable backend systems, support data access initiatives, and contribute to evolving AI-enabled engineering workflows.
Minimum Qualifications

  • 8+ years of backend software engineering experience
  • Strong Python development experience
  • Experience building REST APIs and backend services
  • Experience with FastAPI or similar backend frameworks
  • Strong understanding of backend architecture and scalable system design
  • Experience working with secure enterprise systems and data access
  • Strong problem-solving and analytical skills
  • Ability to work independently within a small, fast-moving engineering team
  • Comfortable learning new technologies and adapting to evolving requirements


Preferred Qualifications

  • Experience with GraphQL, Airflow, DBT, or Snowflake
  • Experience with ETL and data transformation workflows
  • Exposure to AI/LLM engineering initiatives or MCP integrations
  • Familiarity with AI-assisted development workflows
  • Experience working in fast-paced or startup environments


Education & Experience

  • Senior-level backend engineering experience strongly preferred


Submit resume to 
Tony Do
x115
Type: Contract

Location: Cupertino, CA (Hybrid/Remote)
Duration: 12 Months +
Pay Rate Range: $50-$60/HR DOE

Apply