ZipRecruiter

Log In

1

Mid Level Backend Developer Jobs in California (NOW HIRING)

CYNET SYSTEMS

Python Backend Developer

San Jose, CA · On-site

$60 - $65/hr

Expert-level proficiency in Python 3.10 or higher. * Strong experience with backend frameworks such ... Collaborate with engineering and product teams to deliver scalable backend solutions.

Theemesoft.inc

Java Backend Developer

San Jose, CA · On-site

$59.25 - $76.75/hr

... highest-level of quality to match our standards in all of our fields. Greetings from Govind ... Position: Java backend Developer Location: San Jose, CA Duration: 6+ Months Description: Skills

Boss Tech

Backend Developer

San Jose, CA · On-site +1

... backend code * Design flexible and scalable restful API's that enable dynamically linking with ... Accurately estimate stories and tasks considering their level-of-effort, complexity, and ...

One Step GPS

Be Seen First

Mid-Level Full-Stack Developer

San Fernando, CA · On-site

$80K - $120K/yr

This work spans our full technology stack -- Golang (back-end server), Vue (front-end web), Swift ... add a mid-level Developer to our team. Benefits include a 401K with company matching, a 50 ...

Theemesoft.inc

Java Backend Developer

San Jose, CA

$59.25 - $76.75/hr

... highest-level of quality to match our standards in all of our fields. Greetings from Govind ... Position: Java backend Developer Location: San Jose, CA Duration: 6+ Months Description: Skills

Pacificlife

Sr Java Back End Developer

Newport Beach, CA

$129.30K - $167.90K/yr

As a Senior Java Backend Developer at Pacific Life, you will assist in the development of backend ... level constructs. The experience you bring: * Education: Bachelor's degree in Computer Science ...

next page

Showing results 1-20

People also search for

All JobsMid Level Backend Developer JobsMid Level Backend Developer Jobs in California

Mid Level Backend Developer information

See California salary details

$11

$56

$83

How much do mid level backend developer jobs pay per hour?

As of May 31, 2026, the average hourly pay for mid level backend developer in California is $56.98, according to ZipRecruiter salary data. Most workers in this role earn between $46.73 and $67.36 per hour, depending on experience, location, and employer.

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

To thrive as a Mid Level Backend Developer, you need strong programming skills in languages like Java, Python, or Node.js, a solid understanding of server-side logic, and experience with relational and non-relational databases. Familiarity with frameworks (such as Spring or Express), RESTful API development, version control systems (like Git), and containerization tools (like Docker) is typically required. Effective problem-solving, collaboration, and clear communication are standout soft skills for this role. These abilities are crucial for building reliable, scalable backend systems and working efficiently within development teams.

What are some typical challenges a Mid Level Backend Developer might face when working on large-scale applications?

As a Mid Level Backend Developer, you may frequently encounter challenges related to maintaining code quality and ensuring scalability as applications grow. Managing database performance, optimizing API responses, and integrating with legacy systems are common tasks that require both technical skill and problem-solving ability. Collaboration with frontend developers, DevOps engineers, and QA testers is essential to ensure smooth deployments and consistent user experiences. Staying up-to-date with new frameworks and technologies, while balancing project deadlines, is also a key part of the role.

What are Mid Level Backend Developers?

Mid Level Backend Developers are software engineers who specialize in developing and maintaining the server-side logic, databases, and APIs that power web and mobile applications. They usually have a few years of professional experience and are proficient in programming languages like Java, Python, Node.js, or Ruby. These developers are responsible for ensuring that data flows efficiently between the server and users, optimizing performance, and collaborating with front-end developers and other team members. Their role often includes troubleshooting server issues, writing automated tests, and implementing security best practices.

What is the difference between Mid Level Backend Developer vs Junior Backend Developer?

AspectMid Level Backend DeveloperJunior Backend Developer
Experience2-4 years0-2 years
SkillsProficient in backend frameworks, databases, API developmentBasic understanding of backend concepts, learning frameworks
ResponsibilitiesDeveloping features, troubleshooting, code reviewsAssisting in tasks, learning codebase, bug fixing
Work EnvironmentCollaborates with teams, independent problem-solving

The main difference between a Mid Level Backend Developer and a Junior Backend Developer lies in experience and skill level. Mid level developers have more hands-on experience, handle complex tasks independently, and contribute significantly to project development. Junior developers are still learning, focusing on foundational tasks and gaining industry knowledge. This distinction helps employers identify the right candidate for different stages of project involvement.

What are the most commonly searched types of Backend Developer jobs in California? The most popular types of Backend Developer jobs in California are:
What cities in California are hiring for Mid Level Backend Developer jobs? Cities in California with the most Mid Level Backend Developer job openings:
Mid Level Backend Developer jobs near you
Infographic showing various Mid Level Backend Developer job openings in California as of May 2026, with employment types broken down into 87% Full Time, 7% Part Time, 3% Temporary, and 3% Contract. Highlights an 46% Physical, 8% Hybrid, and 46% Remote job distribution, with an average salary of $118,514 per year, or $57 per hour.
Python Backend Developer

Python Backend Developer

CYNET SYSTEMS

San Jose, CA • On-site

$60 - $65/hr

Contractor

Posted 3 days ago

Job description

Job Overview:
 
Pay Range: $60hr - $65hr
  • The Python Backend Developer will be responsible for building scalable backend systems and high-performance APIs that power AI-driven platform experiences. 
  • This role involves designing robust backend architecture, integrating AI agent workflows, implementing secure authentication systems, and ensuring reliable infrastructure scalability in a fast-paced engineering environment.

Requirement/Must Have:

  • Expert-level proficiency in Python 3.10 or higher.
  • Strong experience with backend frameworks such as FastAPI, Django, or Flask.
  • Experience designing and building scalable, high-throughput APIs.
  • Strong understanding of authentication and security protocols including OAuth2, JWT, and OpenID Connect.
  • Experience with SQL and NoSQL databases including PostgreSQL, Redis, and MongoDB.
  • Experience with vector databases such as Pinecone or Weaviate.
  • Familiarity with AI workflow frameworks such as LangChain or Llama Index.
  • Experience with Docker and cloud platforms such as AWS or GCP.
  • Knowledge of asynchronous task queues and backend orchestration patterns.

Experience:

  • Experience building backend systems for scalable platforms handling high request volumes.
  • Experience integrating AI agents and long-running workflow orchestration.
  • Experience designing service communication and API routing architectures.
  • Experience working with cloud-native and containerized environments.
  • Experience supporting production-grade backend systems and infrastructure.

Responsibilities:

  • Design, build, and maintain scalable backend APIs using FastAPI, Django, or Flask.
  • Develop backend systems that support AI agent logic and orchestration workflows.
  • Manage long-running tasks, state persistence, and communication between AI systems and core services.
  • Implement secure authentication and authorization systems using industry-standard protocols.
  • Design request routing and service communication architectures using API gateways and service mesh patterns.
  • Optimize backend infrastructure for performance, scalability, and reliability.
  • Integrate backend systems with SQL, NoSQL, and vector database technologies.
  • Support asynchronous task processing and distributed workflows.
  • Collaborate with engineering and product teams to deliver scalable backend solutions.
  • Troubleshoot and resolve backend performance and integration issues.
  • Ensure system security, availability, and operational stability across environments.

Should Have:

  • Strong problem-solving and architectural design skills.
  • Ability to work in fast-paced and evolving technical environments.
  • Strong collaboration and communication skills.
  • Interest in AI-powered systems and backend innovation.
  • Ability to balance scalability, reliability, and performance requirements.

Skills:

  • Python backend development.
  • FastAPI, Django, and Flask.
  • REST API design and development.
  • OAuth2, JWT, and OpenID Connect.
  • PostgreSQL, Redis, MongoDB.
  • Vector databases including Pinecone and Weaviate.
  • LangChain and Llama Index.
  • Docker and cloud infrastructure (AWS/GCP).
  • Asynchronous task queues and orchestration.
  • API gateways and service communication architecture.

Founded in 2010 and headquartered in the Washington, DC metro area, Cynet Systems Inc. is a leading staffing and recruiting powerhouse. Proudly recognized as a nationally and locally certified diversity firm, Cynet delivers agile, scalable talent solutions across industries. With an active footprint in all 50 U.S. states and Canada, we support thousands of consultants through our expansive, high-performing recruitment engine operating across North America and Asia—ensuring speed, quality, and consistency in every hire.
Cynet Systems logo

About Cynet Systems

Sourced by ZipRecruiter

Cynet Systems Inc is a staffing and recruiting corporation nestled in Ashburn, VA, USA. Established in 2010, the company operates within the Information Technology and Services sector, specializing in providing effective workforce solutions to different business needs, including IT consulting, direct hire, and contract staffing services. Through the years, Cynet Systems has built an impressive portfolio, going beyond borders and expanding its operations internationally in Canada and India. Rooted in its core values of teamwork, leadership, and commitment, Cynet Systems helps businesses unlock their full potential by providing versatile and competent professionals that perfectly align with their needs. Fueled by their unwavering mission to deliver top-tier talent to businesses worldwide, Cynet Systems garnered various recognitions including SIA's fastest-growing staffing firms and Best Place to Work in Virginia for 2019.

Industry

It services

Company size

501 - 1,000 Employees

Headquarters location

Sterling, VA, US

Year founded

2010

Social media

Twitter

View All Cynet Systems Jobs