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Software Engineer Internal Tools Jobs in California

Whatnot

Software Engineer, AI Dev Tools

Los Angeles, CA · On-site

$195K - $290K/yr

Role We're looking for a Senior Software Engineer to join our Developer Tools team and be a primary ... A genuine developer tooling enthusiast who's built or improved internal tools, obsessed over local ...

Paramount

Software Engineer

Burbank, CA · On-site +1

$110K - $165K/yr

Software Engineer - AI Tooling & Quality Engineering Platforms Team : Global Quality Engineering ... Key Responsibilities Build backend services, CLIs, and internal tools that integrate AI ...

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All JobsSoftware Engineer Internal Tools JobsSoftware Engineer Internal Tools Jobs in California

Software Engineer Internal Tools information

See California salary details

$62.7K

$145.6K

$202.8K

How much do software engineer internal tools jobs pay per year?

As of Jul 19, 2026, the average yearly pay for software engineer internal tools in California is $145,592.00, according to ZipRecruiter salary data. Most workers in this role earn between $118,400.00 and $170,700.00 per year, depending on experience, location, and employer.

What is the difference between Software Engineer Internal Tools vs Software Engineer Frontend?

AspectSoftware Engineer Internal ToolsSoftware Engineer Frontend
Primary FocusBuilding and maintaining internal tools and systems for company operationsDeveloping user-facing web applications and interfaces
Required SkillsBackend development, scripting, API integration, internal system knowledgeHTML, CSS, JavaScript, UI/UX design, frontend frameworks
Work EnvironmentCollaborates with internal teams, often in a corporate settingWorks closely with product teams, designers, and end-users
Industry UsageCommon in tech companies, SaaS, and enterprise softwarePrevalent in consumer-facing tech, startups, and web development

While both roles involve software development, Software Engineer Internal Tools focuses on creating internal systems to improve company operations, whereas Software Engineer Frontend emphasizes building interfaces for end-users. The skills and work environments overlap but serve different end goals within the tech ecosystem.

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

Software Engineer, Builder Tools

Hadrian

Los Angeles, CA • On-site

Full-time

Re-posted 28 days ago

Job description

Job Summary:
Hadrian is building autonomous factories that help aerospace and defense companies manufacture rockets, satellites, jets, and ships. As a Software Engineer on the Builder Tools team, you will build and maintain the CI/CD infrastructure and internal tooling that supports engineering teams, enhancing their productivity and efficiency.
Responsibilities:
• Build and maintain CI/CD pipeline libraries that abstract build, release, and deployment events for use across multiple engineering teams
• Design and build internal tools, APIs, and CLI utilities that reduce developer friction and automate recurring engineering tasks — dependency upgrades, credential rotation, routine maintenance
• Help make Hadrian's internal systems API-ready for AI coding agents; build harness tooling, context systems, and feedback loops that improve the quality of AI-generated contributions in our codebase
• Instrument and monitor developer productivity systems; surface bottlenecks and measure the impact of tooling improvements through clear metrics
• Partner with application development teams to identify needs, implement CI/CD best practices, and drive adoption of new tooling across the org
• Join the on-call rotation to support systems and services during production incidents; contribute to root cause analyses and postmortems
• Participate in code reviews and author technical proposals that raise the engineering bar for the Builder Tools team
Qualifications:
Required:
• 5–8 years of software engineering experience, with at least 2–3 years focused on CI/CD, developer tooling, or build infrastructure
• Hands-on experience building and maintaining complex CI/CD pipelines and build infrastructure — pipeline-as-code, artifact management, multi-environment deployments
• Strong programming fundamentals in Go, Python, TypeScript, or similar; track record of writing clean, maintainable, well-tested code
• Experience with Docker and container orchestration (Kubernetes or similar)
• Solid understanding of source control concepts and practical Git experience
• Proven ability to troubleshoot complex systems and resolve issues efficiently
• A developer empathy mindset: you build tools that are easy to adopt, well-documented, and reduce toil rather than create it
• Bachelor's degree in Computer Science or related field, or equivalent experience
• To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
Preferred:
• Genuine curiosity and hands-on experience with AI coding tools and agents — Copilot, Cursor, Claude Code, or similar — and opinions about what makes them work well in a real codebase
• Experience building API-ready interfaces or harness tooling for AI coding agents
• Prior work on developer experience or engineering productivity programs
• Familiarity with GitOps principles and workflows
• Experience with static analysis, automated PR pipelines, or code review tooling
• Background in fast-paced or scaling startup environments
Company:
Hadrian builds AI-powered automated factories that manufacture precision parts for defense, aerospace, and space industries. Founded in 2020, the company is headquartered in Hawthorne, USA, with a team of 201-500 employees. The company is currently Growth Stage.

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