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Senior Backend Developer Python Jobs in California

Replo

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 ...

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 ...

Pika

Senior Software Engineer, Backend

Palo Alto, CA · On-site

$185K - $300K/yr

Senior Software Engineer, Backend About the Role We're looking for a Senior Backend Engineer with ... Python, Go, etc.) and frameworks (Express, FastAPI, etc.) • Strong understanding of distributed ...

LiteLLM AI Gateway

Backend Engineer

San Francisco, CA · On-site

$170K - $230K/yr

... we're looking for a Senior Backend Engineer to help us build rock-solid guardrails and ... Bachelor's or Master's in Computer Science or related field * 1+ years of experience with Python ...

Arena Club

Senior Backend Engineer

Los Angeles, CA · On-site +1

About The Role We're seeking a Senior Backend Engineer and help scale the backbone of our platform ... TypeScript, Node.js, Python * Database: Postgres * Cloud & Infrastructure: AWS (S3, SQS, etc.) and ...

BuildOps

Senior Backend Engineer

San Francisco, CA

$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 ...

Arena Club

Senior Backend Engineer

Los Angeles, CA · On-site

$150K - $195K/yr

About The Role We're seeking a Senior Backend Engineer and help scale the backbone of our platform ... TypeScript, Node.js, Python * Database: Postgres * Cloud & Infrastructure: AWS (S3, SQS, etc.) and ...

Wise Skulls

Senior Backend Java Developer

Mountain View, CA · On-site

$142.10K - $184.50K/yr

Senior Backend Java Developer Location: Mountain View, CA (Hybrid) Duration: 6 months (possibility of extension) Implementation Partner: Infosys End Client: To be disclosed JD: We are looking for ...

Lendtable

Senior Backend Engineer

San Francisco, CA · On-site

They are seeking a Senior Backend Engineer who will take ownership of program vision and execution, design and maintain web applications, and manage the software development process. Responsibilities ...

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 ...

Arena Club

Senior Backend Engineer

Los Angeles, CA · On-site +1

$150K - $195K/yr

About The Role We're seeking a Senior Backend Engineer and help scale the backbone of our platform ... TypeScript, Node.js, Python * Database: Postgres * Cloud & Infrastructure: AWS (S3, SQS, etc.) and ...

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 ...

TestBox

Senior Backend Engineer

San Francisco, CA · On-site

$200K/hr

Expertise with modern, backend languages incl Go, Python, Rust, Node (TypeScript). * Strong ... Experience building developer tools, SDKs, or public-facing APIs Why Join TestBox * Build ...

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Senior Backend Developer Python information

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 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 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 May 2026, with employment types broken down into 100% Full Time. Highlights an 61% In-person, 22% Hybrid, and 17% Remote job distribution.

Senior Backend Engineer

Replo

San Francisco, CA • On-site

$200K - $500K/yr

Full-time

Posted 27 days ago

Job description

About the role
Hiring a senior backend engineer to join our team and focus on system architecture our most popular products.
Things you'll be working on
Architecting and implementing backend systems in Typescript/Node is the core of what you'll be doing. Real examples include -
  • Designing and building an ingestion pipeline for our analytics/insights products (> 99.99% uptime on Kafka, Clickhouse, Redis)
  • Spiking on our CI/CD to improve stability
  • Build out durable/distributed cart/hosting for our ecommerce product
  • Deploying a multi-tenant NextJS app for shops in Cloudflare
  • Mentoring junior engineers on best-practices

Looking for someone who
  • Can be in office 3-4 days/week in San Francisco
  • Has deep knowledge in distributed systems and SOA - load balancers, databases, queuing, caching, HTTP, APIs, high-availability, fault tolerance, redundancy, at-least-two-of-everything
  • Down to do full-stack work (including frontend even if it's not your main role)
  • Is ALWAYS SHIPPING. We don't spend weeks planning features at Replo
  • Has 4+ years of professional experience with production distributed systems, service oriented architecture
  • Proficient in Typescript. If you have experience writing these systems in Python/Go/Java that's cool too, as long as you're willing to learn Typescript/Node - the learning curve on writing TS isn't that high for high-caliber engineers. Experience or working knowledge of React is great too, but we can teach you that if we need to
  • Has a product and customer-focused mindset
  • Has experience being burned by deployment and maintenance issues. If you have a a strong opinion on how backend systems should be built, that's good
  • Values writing clean, maintainable software, including documentation (e.g. the code needs to be correct and run fast, but we're the ones that have to read it and understand it)
  • Is comfortable with ambiguity and defining software architecture patterns to solve customer pain points
Bonus points if you
  • Have started a company before
  • Enjoy attending hackathons
  • Worked at an early-stage (Series A or earlier) startup previously
  • Have not wasted hours interview-prepping on Leetcode
  • Have an eye for visual design (or past experience in product design, Figma, etc)

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