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Web Application Development Jobs in California (NOW HIRING)

Leidos

Application Software Engineer

San Diego, CA · On-site

$87K - $157K/yr

Product development includes tactical mobile development as well as enterprise web application development. The portfolio of products support the Cybersecurity and Information Assurance domains.

Leidos

Application Software Engineer

San Diego, CA

$87K - $157K/yr

Product development includes tactical mobile development as well as enterprise web application development. The portfolio of products support the Cybersecurity and Information Assurance domains.

PM2CM

Senior Web Application Developer

San Jose, CA · On-site

Experience: * 5+ years of full-time professional experience in full-stack web development and deployment. * Advanced knowledge of Python and/or Java , including frameworks like Django, Spring, or ...

PM2CM

Senior Web Application Developer

San Jose, CA · On-site

Experience: * 5+ years of full-time professional experience in full-stack web development and deployment. * Advanced knowledge of Python and/or Java , including frameworks like Django, Spring, or ...

PM2CM

Senior Web Application Developer

San Jose, CA

Experience: * 5+ years of full-time professional experience in full-stack web development and deployment. * Advanced knowledge of Python and/or Java , including frameworks like Django, Spring, or ...

PM2CM

Senior Web Application Developer

Los Angeles, CA · On-site

Experience: * 5+ years of full-time professional experience in full-stack web development and deployment. * Advanced knowledge of Python and/or Java , including frameworks like Django, Spring, or ...

PM2CM

Senior Web Application Developer

Los Angeles, CA · On-site

Experience: * 5+ years of full-time professional experience in full-stack web development and deployment. * Advanced knowledge of Python and/or Java , including frameworks like Django, Spring, or ...

Marissa Letendre

Web Software Engineer

Lake Forest, CA · On-site

... web application development. Experience in the e-commerce domain is a must. Hybris and/or Java ... using Spring knowledge and experience is preferable. This position will involve working with ...

Jobsbridge

Senior Back End Developer

San Diego, CA

$127K - $166K/yr

Skill NoSQL and Big Data stack, Large Scale Web Application Development, Function/ object-oriented design Location San Diego, CA Total Experience 7 yrs. Max Salary Not Mentioned Employment Type ...

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All JobsWeb Application Development JobsWeb Application Development Jobs in California

Web Application Development information

See California salary details

$21.7K

$97.2K

$151K

How much do web application development jobs pay per year?

As of Jun 28, 2026, the average yearly pay for web application development in California is $97,224.00, according to ZipRecruiter salary data. Most workers in this role earn between $78,000.00 and $117,900.00 per year, depending on experience, location, and employer.

What is web application development?

Web application development is the process of creating software applications that run on web servers and can be accessed through a web browser. It involves designing, building, testing, and maintaining applications that use technologies such as HTML, CSS, JavaScript, and server-side languages like Python, PHP, or Java. Web apps can range from simple websites to complex platforms like e-commerce sites or online tools. The goal is to deliver interactive, user-friendly experiences that work across multiple devices and browsers.

Is AI replacing web devs?

Web application development is evolving with AI tools that can automate certain coding tasks and improve efficiency. However, AI currently complements rather than replaces web developers, who are needed for designing, customizing, and maintaining complex applications, as well as integrating user experience and security considerations.

What does a web application developer do?

A web application developer designs, builds, and maintains web-based software applications using programming languages such as JavaScript, HTML, CSS, and frameworks like React or Angular. They collaborate with designers and backend developers to create functional, user-friendly websites and ensure applications are secure, efficient, and responsive across devices. Proficiency with development tools, version control, and understanding of web protocols are essential in this role.

What are the key skills and qualifications needed to thrive as a Web Application Developer, and why are they important?

To thrive as a Web Application Developer, you need strong programming skills in languages such as JavaScript, HTML, and CSS, along with a solid understanding of web frameworks and a relevant computer science degree or equivalent experience. Familiarity with tools like version control systems (e.g., Git), front-end frameworks (such as React or Angular), and back-end technologies (like Node.js or Django) is typically required. Creative problem-solving, attention to detail, and effective communication are standout soft skills for this role. These abilities ensure robust, user-friendly applications and efficient collaboration within development teams.

Is 40 too old to become a web developer?

Web application development is accessible to individuals of all ages, and many successful developers start later in life. Skills such as coding languages, frameworks, and problem-solving are learnable through online courses and practice, regardless of age, making it possible to transition into the field at 40 or older.

How do web application developers typically collaborate with designers and backend engineers during a project?

Web application developers frequently work closely with both UI/UX designers and backend engineers to ensure seamless integration of frontend interfaces with server-side logic. Collaboration often involves regular meetings, shared project management tools, and code reviews to align on functionality and design requirements. Developers may participate in sprint planning sessions and use platforms like GitHub for version control, facilitating smooth communication and efficient handoffs between teams. This collaborative environment helps ensure the final product is user-friendly, visually appealing, and performs reliably across different devices.

How much does a web app developer make?

Web application developers typically earn a median annual salary ranging from $70,000 to $120,000, depending on experience, location, and skill set. Factors such as proficiency in programming languages, frameworks, and tools like JavaScript, React, or Node.js can influence compensation levels.

What is the difference between Web Application Development vs Web Software Development?

AspectWeb Application DevelopmentWeb Software Development
FocusBuilding interactive, user-facing web applicationsCreating software solutions that run on web platforms, including backend and frontend
SkillsHTML, CSS, JavaScript, frameworks like React or AngularSame as Web Application Development, often including server-side languages like PHP, Python, or Java
Work EnvironmentWeb development teams, client projects, startupsSoftware companies, enterprise solutions, SaaS providers

Web Application Development primarily focuses on creating interactive web apps for users, while Web Software Development encompasses a broader range of web-based software solutions, including backend systems. Both roles share similar skills and work environments, but their scope and end goals differ slightly.

What are popular job titles related to Web Application Development jobs in California? For Web Application Development jobs in California, the most frequently searched job titles are:
What job categories do people searching Web Application Development jobs in California look for? The top searched job categories for Web Application Development jobs in California are:
What cities in California are hiring for Web Application Development jobs? Cities in California with the most Web Application Development job openings:
Web Application Development jobs near you
Application Software Engineer

Application Software Engineer

Leidos

San Diego, CA • On-site

$87K - $157K/yr

Full-time

Retirement, PTO

Posted 20 days ago

Leidos rating

8.4

Company rating: 8.4 out of 10

Based on 147 frontline employees who took The Breakroom Quiz

56th of 430 rated business services

Job description

Leidos has a new and exciting opportunity for a Applications Software Engineer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!
PROGRAM SUMMARY:
Product development includes tactical mobile development as well as enterprise web application development. The portfolio of products support the Cybersecurity and Information Assurance domains. These systems deploy a variety of technologies and communicate with infrastructure interfaces to bring secure, modern-day Cybersecurity and Cryptographic Key Management solutions to the warfighter.
Primary Responsibilities:
The successful candidate will work on a mix of web service development, full stack web application development and robust persistence layer implementations in an Agile Scrum environment. This involves the use of Themes, Epics, User Stories, acceptance criteria and other system engineering artifacts as part of an Agile team. He/she will use a variety of software engineering best practices and clean coding techniques to ensure that developed code is maintainable, efficient, reliable, understandable, secure, fault tolerant and meets S.O.L.I.D coding principles.
The candidate will be knowledgeable about (and apply) secure software development principles and techniques. He/she will use software tools in cooperation with continuous integration and test automation management process and understand software components and their interface requirements. The candidate will interface with software engineers, system engineers, information assurance engineers, test engineers, quality assurance, and other project team members. He/she will be responsible for setting the standards and helping the team adopt and adhere to Test Driven Development (TDD) practices within the Leidos Agile Framework to ensure the proper degree of engineering rigor is applied to all assigned tasks.
Basic Qualifications:
  • BS Degree in Computer Science or equivalent and 4+ years of relevant experience. Will consider experience in lieu of a degree.
  • Active Secret Clearance (Required)
  • Experience with web-based (HTML, CSS, JavaScript) in a web-based environment
  • Experience in Scrum Methodology or other Agile environments (e.g., SAFe, XP)
  • Experience with UI / Development Frameworks (E.g, AngularJS, Ionic, GWT, SmartGWT, Qt, React, Node.js)
  • Experience with Automated Testing Tools/Technologies/Concepts (Selenium, Cucumber, Gherkin, BDD)
  • Experience with Test Driven Development (TDD)
  • Works well in a team environment and has excellent written and communication skills
  • DoD 8570 approved security certification (i.e., Security +) (Will be required 90 days after hire).

Preferred Qualifications:
  • Experience with Web Services Architectures (REST, SOAP, AWS)
  • Experience with Software CM (e.g., Git, GitHub)
  • Experience with Continuous Integration / Quality, and DevOps concepts and tools / technologies (e.g., Ant / Maven, Jenkins, SonarQube, FishEye, Crucible, Gradle, Junit)
  • Experience with Security Scanning (HP Fortify, HP WebInspect)
  • Experience with Build Scripts (e.g., Maven, ANT)
  • Experience with Mobile Application Development
  • Experience with Agile Management Tools and Concepts (e.g., VersionOne, JIRA, Rally, etc.)
  • Experience with Web Server Configuration (e.g., JBOSS, Wildfly, Tomcat)
  • Experience with Database Development (e.g., Postgres, SQL Server, MySQL, SQLite, Oracle)

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:
March 10, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $87,100.00 - $157,450.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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