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Senior Backend Net Developer Jobs in California (NOW HIRING)

Casa, Inc

Senior Backend Engineer

San Francisco, CA · On-site

About the role We're hiring a founding Senior Backend Engineer to help us design, develop, and ship robust backend systems that deliver exceptional value to our members. You'll work closely with our ...

Socket.dev

Senior Backend Engineer

San Francisco, CA · On-site

We are looking for a senior backend engineer to own the backend systems that make that possible. The role You will work on the backend systems that power Slope's embedded credit, payments and ...

Slope

Senior Backend Engineer

San Francisco, CA · On-site

We are looking for a senior backend engineer to own the backend systems that make that possible. The role You will work on the backend systems that power Slope's embedded credit, payments and ...

Nash, Inc.

Senior Backend Engineer

San Francisco, CA · On-site

Senior Backend Engineer San Francisco / Hybrid / Remote About Nash Logistics is the substrate beneath every economy that has ever existed, and it remains the least intelligently coordinated activity ...

FlexAI

Senior Backend Engineer

Santa Clara, CA · On-site

They are seeking a Senior Backend Engineer to architect and develop high-performance backend ... Work with DevOps/SRE on CI/CD, deployment automation, and scalability • Contribute to ...

P2P

Senior Backend Engineer

San Mateo, CA · On-site

Role Dinari is looking for senior backend engineers, eager to tackle the challenges of integrating Web3 technology into a stable and efficient SaaS platform. Responsibilities * Contribute to ...

Troveo AI Inc

Senior Back End Engineer

San Francisco, CA · On-site +1

$175K - $195K/yr

About the Role We are hiring a Senior Backend Software Engineer with deep expertise in building ... Collaborate with platform teams to evolve internal tooling and developer experience Job ...

Mintlify

Senior Backend Engineer

San Francisco, CA · On-site

$190K - $265K/yr

As a Senior Backend Engineer, you'll build the APIs, content pipelines, and AI infrastructure that power Mintlify's products. You'll collaborate across design and engineering, contribute to product ...

InterSources Inc

Backend Java Engineer

Mountain View, CA · On-site

$60 - $78/hr

InterSources Inc is seeking a Senior Backend Java Engineer to work on backend-focused distributed systems. The role involves utilizing technologies like Java, Spring Boot, and REST APIs to develop ...

Mintlify

Senior Backend Engineer

San Francisco, CA · On-site

As a Senior Backend Engineer, you'll build the APIs, content pipelines, and AI infrastructure that power Mintlify's products. You'll collaborate across design and engineering, contribute to product ...

Nash

Senior Backend Engineer

San Francisco, CA · On-site

About The Role As a Senior Backend Engineer , you will play a critical role in designing and building Nash's backend systems, services, and APIs. You'll work closely with the CTO, co-founder, and ...

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All JobsBackend Net Developer JobsSenior Backend Net Developer JobsSenior Backend Net Developer Jobs in California

Senior Backend Net Developer information

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

AspectSenior Backend Net DeveloperBackend Developer
Required CredentialsBachelor's in CS or related, experience with .NET, often certifications like MCSDBachelor's in CS or related, experience with .NET or similar frameworks
Work EnvironmentLarge enterprise, software firms, tech companiesStartups, small to medium businesses, tech teams
Employer & Industry UsageCommon in finance, healthcare, enterprise softwareUsed across various industries, including e-commerce and SaaS

Senior Backend Net Developers typically have more experience, advanced certifications, and handle complex systems, whereas Backend Developers focus on building and maintaining backend services. The senior role involves leadership and architecture responsibilities, while the junior role emphasizes implementation and coding.

Are senior backend .NET developers still in demand?

Senior backend .NET developers remain in demand due to the continued use of .NET frameworks in enterprise applications, cloud services, and web development. Strong skills in C#, ASP.NET, and related tools, along with experience in cloud platforms like Azure, enhance job prospects in this field.

What are the most commonly searched types of Backend Net Developer jobs in California?

The most popular types of Backend Net Developer jobs in California are:

What cities in California are hiring for Senior Backend Net Developer jobs?

Cities in California with the most Senior Backend Net Developer job openings:

Senior Backend Net Developer jobs near you
Infographic showing various Senior Backend Net Developer job openings in California as of September 2026, with employment types broken down into 75% Full Time, and 25% Contract. Highlights an 100% In-person job distribution.

Senior Backend Engineer

San Francisco, CA • On-site

Casa, Inc
See more jobs at Casa, Incexternal

Full-time

Re-posted 25 days ago

Job description

About Casa
We believe owning a home should feel as special as the moments that take place within them. If our mission inspires you, we'd love to hear from you.
About the role
We're hiring a founding Senior Backend Engineer to help us design, develop, and ship robust backend systems that deliver exceptional value to our members.
You'll work closely with our founders, fellow engineers, and designers to create thoughtful and groundbreaking products that deliver exceptional value to our members. You'll help build our core systems and product and define much of our founding team culture.
Some of the responsibilities you'll have
  • Lead the architecture and development of our backend systems, ensuring they are scalable, secure, and reliable
  • Design and implement APIs that power our iOS applications and other client interfaces
  • Optimize performance and scalability of our services to handle a growing number of members and data
  • Stay current with the latest advancements in backend technologies and cloud infrastructure, and integrate new technologies and methodologies as appropriate
  • Level up a growing engineering team by reviewing code and designs of teammates and providing constructive feedback to maintain high quality

About you
  • You're passionate about building robust systems. You have a deep understanding of backend architecture, API design, and database management, and you're excited to build systems that scale with our growing member base
  • You're excited to be a founding engineer at an early-stage startup. This means that there's a lot of systems and structure yet to be put in place, and you'll play an active role in building and shaping those alongside our company culture
  • You're excited to build. You embrace the challenges and growth that come with joining an early-stage company, thriving in a fast-moving, evolving environment
  • You think and act like an owner. You take a long-term view, make decisions with care, and are eager to take initiative and responsibility with good judgment
  • You roll up your sleeves. You find satisfaction in taking action, solving problems, and learning quickly, rather than delegating or managing from the sidelines
  • You're mission-driven and adaptable. You understand the stakes of a startup, focus on what matters most, and dedicate yourself to building for long-term success
  • You thrive on collaboration and problem-solving. You work best in an in-person culture, feeding off shared energy, brainstorming, and engaging with others daily

Apply