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Backend Engineer Jobs in California (NOW HIRING)

Backend Engineer Data Location: Sunnyvale, CA (Onsite) Duration: 6-12+ Months Experience: 6-8+ years Ex- Apple is must Look for people from product based companies / startup / [Paypal / Netflix ...

Backend Engineer Nexusflow is currently adding Backend Engineers to our team. Our Backend Engineers package up our technology in models and last-mile quality tooling. Our Backend Engineers will be ...

Backend Engineer San Francisco About Navier AI Navier AI is building the first autonomous engineering agents. AI systems that can design, simulate, and optimize complex products to achieve ...

As a Backend Engineer, you'll become part of a passionate, fast moving team dedicated to solving challenging technical problems, designing engaging gamification experiences, and shaping the ...

Backend Engineer

San Francisco, CA · On-site

$170K - $230K/yr

Backend Engineer LiteLLM is the world's most popular AI Gateway, trusted by top companies like Adobe, Netflix, and NASA. Our platform empowers developers by providing secure, reliable access to LLMs ...

One of our direct client is urgently looking for a Back-End Engineer @ Sunnyvale CA TITLE: Back-End Engineer LOCATION:Sunnyvale, CA Duration: 6 to 12+ Months Rate: DOE Note: Description: Job Duties ...

One of our direct client is urgently looking for a Back-End Engineer @ Sunnyvale CA TITLE: Back-End Engineer LOCATION:Sunnyvale, CA Duration: 6 to 12+ Months Rate: DOE Note: Job Duties: -Develops ...

One of our direct client is urgently looking for a Back-End Engineer @ Sunnyvale CA TITLE: Back-End Engineer LOCATION:Sunnyvale, CA Duration: 6 to 12+ Months Rate: DOE Note: Description : Position ...

One of our direct client is urgently looking for a Back-End Engineer @ Sunnyvale CA TITLE: Back-End Engineer LOCATION:Sunnyvale, CA Duration: 6 to 12+ Months Rate: DOE Note: Job Duties: -Develops ...

One of our direct client is urgently looking for a Back-End Engineer @ Sunnyvale CA TITLE: Back-End Engineer LOCATION:Sunnyvale, CA Duration: 6 to 12+ Months Rate: DOE Note: Description : Position ...

One of our direct client is urgently looking for a Back-End Engineer @ Sunnyvale CA TITLE: Back-End Engineer LOCATION:Sunnyvale, CA Duration: 6 to 12+ Months Rate: DOE Note: Description : Position ...

One of our direct client is urgently looking for a Back-End Engineer @San Bruno, CA TITLE: Back-End Engineer LOCATION:San Bruno, CA Duration: 6 to 12+ Months Rate: DOE Note: API development, site ...

One of our direct client is urgently looking for a Back-End Engineer@ Sunnyvale CA TITLE: Back-End Engineer LOCATION:Sunnyvale CA Duration: 6 to 12+ Months Rate: DOE Note: RequiredSkilled in Java/C ...

As a Backend Engineer, you will design, build, and maintain backend services that power the Pump platform, collaborating closely with engineers, designers, and founders to deliver impactful solutions.

Backend Engineer LOCATION:Sunnyvale, CA. Duration: 6 to 12+ Months Rate: DOE Description: -Develops innovation strategies, processes, and best practices. - Drives the execution of multiple business ...

Backend Engineer LOCATION:Sunnyvale, CA Duration: 6 to 12+ Months Rate: DOE Description: Job Duties:-Develops innovation strategies, processes, and best practices. - Drives the execution of multiple ...

One of our direct client is urgently looking for a Back-End Engineer @ Sunnyvale CA TITLE: Back-End Engineer LOCATION:Sunnyvale, CA Duration: 6 to 12+ Months Rate: DOE Note: Description: Job Duties ...

Backend Engineer We're looking for a backend engineer to help build and scale our integration infrastructure. You'll work closely with our staff backend engineer to tackle complex problems in data ...

One of our direct client is urgently looking for a Back-End Engineer@ Sunnyvale CA TITLE: Back-End Engineer LOCATION:Sunnyvale CA Duration: 6 to 12+ Months Rate: DOE Note: RequiredSkilled in Java/C ...

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Backend Engineer information

See California salary details

$59.7K

$145.7K

$196.4K

How much do backend engineer jobs pay per year?

As of Jun 11, 2026, the average yearly pay for backend engineer in California is $145,728.00, according to ZipRecruiter salary data. Most workers in this role earn between $122,400.00 and $169,700.00 per year, depending on experience, location, and employer.

What are some common challenges Backend Engineers face when integrating new technologies into existing systems?

Backend Engineers often encounter challenges when integrating new technologies, such as ensuring compatibility with legacy systems, maintaining data consistency, and minimizing service disruptions during deployment. They must carefully plan migrations, coordinate with frontend and DevOps teams, and implement thorough testing to avoid introducing bugs or security vulnerabilities. Effective communication and documentation are key to overcoming these challenges and ensuring a smooth transition.

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

To thrive as a Backend Engineer, you need strong programming skills in languages like Java, Python, or Node.js, a solid understanding of algorithms, and experience with databases, typically supported by a degree in computer science or related field. Familiarity with tools such as RESTful APIs, cloud platforms (e.g., AWS, Azure), version control systems (like Git), and containerization technologies (Docker, Kubernetes) is common. Problem-solving ability, attention to detail, and effective communication are vital soft skills for this role. These skills and qualities are essential for building robust, scalable systems and collaborating efficiently within development teams.

What is the difference between Backend Engineer vs Software Developer?

AspectBackend EngineerSoftware Developer
Primary FocusDesigning, building, and maintaining server-side applications and databasesDeveloping software across various layers, including frontend and backend
Skills & CertificationsProficiency in server-side languages (e.g., Java, Python), databases, APIsProficiency in multiple programming languages, software design, and sometimes frontend skills
Work EnvironmentTypically in backend teams, working on server infrastructure and APIsCan work on full-stack or specific areas; broader scope
Industry UsageCommon in tech companies, startups, and enterprises focusing on backend systemsWidespread across all software development sectors

While both roles involve coding and software development, Backend Engineers specialize in server-side logic, databases, and APIs, whereas Software Developers may work on both frontend and backend components. The roles often overlap, but Backend Engineers focus more on the infrastructure that powers applications.

What are Backend Engineers?

Backend Engineers are software developers who focus on building and maintaining the server-side logic, databases, and APIs that power web and mobile applications. They ensure that the data requested by the frontend systems is delivered efficiently and securely. Their work involves writing code in languages like Python, Java, or Node.js, integrating with databases, and optimizing the overall performance of applications. Backend Engineers also play a crucial role in ensuring data integrity and implementing security best practices.
More about Backend Engineer jobs
What are the most commonly searched types of Backend Engineer jobs in California? The most popular types of Backend Engineer jobs in California are:
What cities in California are hiring for Backend Engineer jobs? Cities in California with the most Backend Engineer job openings:
What are popular job titles related to Backend Engineer jobs in CA? For Backend Engineer jobs in CA, the most frequently searched job titles are:
Backend Engineer

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Posted 7 days ago


Job description

We have an immediate contract opening for a Backend Engineer Data role with End client is Apple. Please find the details below:

Job Role: Backend Engineer Data

Location: Sunnyvale, CA (Onsite)

Duration: 6-12+ Months Experience: 6-8+ years

Ex- Apple is must

Look for people from product based companies / startup / [Paypal / Netflix / Meta / AWS ...]

No candidates from companies like Wells Fargo / CVS/ Bank/ Finance/Medical/Telecom

Key Requirement:
We are looking for a strong backend developer Python with Data Engineering exposure, preferably someone who has built data pipelines and developed APIs using FastAPI.

Skills Required: MUST TO HAVE-

  • Python (FastAPI/Flask, SQLAlchemy, Pydantic)
  • REST APIs, JSON, OpenAPI/Swagger
  • PostgreSQL, complex SQL, and data modeling
  • Experience in building data pipelines (ETL)
  • Git, debugging, and collaborative development

Nice to Have:

  • Experience building an MCP server
  • Docker, Kubernetes, AWS, CI/CD

Responsibilities:

  • Build and enhance backend services and APIs
  • Work with PMs to gather and refine requirements
  • Optimize existing systems and troubleshoot issues
  • Deliver projects within timelines