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Senior Full Stack Software Engineer Jobs in Simi Valley, CA

Plug

Sr. Full-Stack Software Engineer

Los Angeles, CA · On-site

A senior full-stack software engineer who will report to our engineering lead, and who will own entire customer-facing or internal products. We're building systems like AI-powered pricing ...

New

Hop

Full Stack Software Engineer

Los Angeles, CA

Full Stack Software Engineer Location: Los Angeles, CA We are seeking highly motivated ... The selected candidates will work closely with senior engineering leadership and help coordinate ...

Paramount

Senior Full-Stack Software Engineer

Burbank, CA · On-site

$124K - $186K/yr

The Applied Intelligence team is seeking a Senior Full-Stack Software Engineer to lead the development of innovative, data-driven applications and visualization tools that power analytics, decision ...

Paramount

Senior Full-Stack Software Engineer

Burbank, CA · On-site

$124K - $186K/yr

The Applied Intelligence team is seeking a Senior Full-Stack Software Engineer to lead the development of innovative, data-driven applications and visualization tools that power analytics, decision ...

Plugmotors

Full-Stack Software Engineer

Santa Monica, CA · On-site

$145 - $175/hr

A full-stack software engineer who will report to our engineering lead, and who will own features and components within our products - working closely with senior software engineers (SSEs) on scope ...

Plug

Full-Stack Software Engineer

Los Angeles, CA · On-site

A full-stack software engineer who will report to our engineering lead, and who will own features and components within our products - working closely with senior software engineers (SSEs) on scope ...

New

Hop

Full Stack Software Engineer

Los Angeles, CA · On-site

$200K - $400K/yr

You will work closely with senior engineering leadership, contribute to architecture and ... Build and deliver full-stack software features across backend services, APIs, databases, and ...

Generac

Senior Full-Stack Engineer

Santa Monica, CA · On-site +1

$114K - $148K/yr

Generac Home is hiring a Senior Full Stack Engineer with a focus on front end development. In this ... Develop and deliver full-stack software features from design through production deployment ...

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All JobsFull Stack Software Engineer JobsSenior Full Stack Software Engineer JobsSenior Full Stack Software Engineer Jobs in Simi Valley, CA

Senior Full Stack Software Engineer information

See Simi Valley, CA salary details

$45.9K

$139.1K

$196.7K

How much do senior full stack software engineer jobs pay per year?

As of Sep 5, 2026, the average yearly pay for senior full stack software engineer in Simi Valley, CA is $139,123.00, according to ZipRecruiter salary data. Most workers in this role earn between $114,600.00 and $163,100.00 per year, depending on experience, location, and employer.

What is a senior full stack software engineer?

A Senior Full Stack Software Engineer is an experienced developer responsible for designing, building, and maintaining both front-end and back-end systems in web or software applications. They work with a variety of technologies, frameworks, and databases to ensure seamless functionality across the entire software stack. In addition to coding, they often provide technical leadership, mentor junior developers, and contribute to architectural decisions. Their role requires strong problem-solving skills, an understanding of best practices, and the ability to collaborate with cross-functional teams to deliver high-quality software solutions.

What does a senior full stack software engineer do?

A typical day for a Senior Full Stack Software Engineer involves designing and implementing new features, reviewing and improving code, and collaborating with product managers, designers, and other developers to deliver project goals. You might split your time between writing code for both front-end and back-end systems, participating in daily stand-up meetings, and providing technical guidance to junior team members. The role often requires balancing hands-on development with architectural planning and problem-solving for complex technical challenges. You’ll also frequently interact with stakeholders to gather requirements and provide updates, ensuring alignment throughout the software development lifecycle.

What are the key skills and qualifications needed to thrive as a senior full stack software engineer?

To thrive as a Senior Full Stack Software Engineer, you need deep expertise in both front-end and back-end development, strong problem-solving abilities, and a solid foundation in computer science principles, typically demonstrated by a bachelor’s or master’s degree in a related field. Familiarity with frameworks and languages like React, Angular, Node.js, Python, and proficiency in using cloud platforms, version control systems like Git, and continuous integration tools is crucial, and relevant certifications are an advantage. Exceptional communication, leadership, and teamwork skills help you effectively coordinate with cross-functional teams and mentor junior engineers. These skills ensure you can deliver robust, scalable solutions while driving project success and fostering a collaborative development environment.

What are popular job titles related to Senior Full Stack Software Engineer jobs in Simi Valley, CA?

For Senior Full Stack Software Engineer jobs in Simi Valley, CA, the most frequently searched job titles are:

What cities near Simi Valley, CA are hiring for Senior Full Stack Software Engineer jobs?

Cities near Simi Valley, CA with the most Senior Full Stack Software Engineer job openings:

Senior Full Stack Software Engineer jobs near you
Infographic showing various Senior Full Stack Software Engineer job openings in Simi Valley, CA as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 12% Part Time, and 4% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution, with an average salary of $139,123 per year, or $66.9 per hour.

Senior Full Stack Software Engineer (Contract)

Symhas

Los Angeles, CA • On-site

Contractor

Posted 14 days ago

Job description

Senior Full Stack Software Engineer

Location: Southern California · Work mode: Onsite at client office · Type: Contract · Work authorization: U.S. Citizen or Green Card holder (no sponsorship)

About the Role

We are seeking Senior Full Stack Software Engineers to design, build, and scale cloud-native applications that power Operational Excellence (OE) initiatives — including design automation, design validation, and permit automation — and enterprise AI solutions such as Obi, a new-joiner onboarding concierge, and NOVA, an AI-powered workflow orchestration platform. This is a hands-on senior role based in Southern California and performed onsite from the client's office. You will work side by side with architects, product owners, and business stakeholders to turn complex operational problems into reliable production software.

Key Responsibilities
  • Develop modern web applications, APIs, and enterprise integrations.
  • Design and build cloud-native solutions on Microsoft Azure and/or Google Cloud (GCP).
  • Implement scalable microservices and event-driven architectures.
  • Support CI/CD, DevOps, and application-security best practices.
  • Integrate AI/LLM capabilities into real business workflows.
  • Collaborate with architects, product owners, and business stakeholders.
  • Mentor junior engineers and contribute to technical standards.
Required Qualifications
  • 8+ years of full-stack software development experience.
  • Practical AI experience — using AI across the SDLC, implementing RAG, and evaluating LLMs.
  • Strong hands-on experience with Next.js, TypeScript, and Python.
  • PostgreSQL with Drizzle and/or SQLAlchemy ORM.
  • REST APIs and microservices; SQL and NoSQL databases.
  • Microsoft Azure and/or Google Cloud (GCP) services.
  • Git, CI/CD, and modern DevOps practices.
  • Strong problem-solving, communication, and collaboration skills.
  • Must be a U.S. Citizen or Green Card holder; this role does not offer visa sponsorship.
Preferred Qualifications
  • Experience building AI-enabled applications.
  • Knowledge of Azure OpenAI, Vertex AI, RAG, and Generative AI solutions.
  • Experience with enterprise workflow automation and integrations.
  • Familiarity with utility, engineering, construction, or permitting systems.

Qualified applicants will be asked to complete a short set of mandatory screening questions as part of the application.