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Interface Engineering Jobs in California (NOW HIRING)

InterSources Inc

Senior UI Developer

San Jose, CA · On-site

$70.25 - $91/hr

... I engineering across the organization; • Enhancing our design system; • Working closely with design, product management, and development teams to create elegant, usable, responsive and ...

Omega Solutions, Inc.

UI Developer

Santa Clara, CA · On-site

$58.75 - $76.25/hr

... experience in UI engineering. The role involves working with technologies such as ReactJS/AngularJS and requires strong communication skills and a motivation to learn new technologies.

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Interface Engineering information

See California salary details

$11.4K

$105.3K

How much do interface engineering jobs pay per year?

As of Sep 13, 2026, the average yearly pay for interface engineering in California is $103,733.00, according to ZipRecruiter salary data. Most workers in this role earn between $103,700.00 and $103,700.00 per year, depending on experience, location, and employer.

What is interface engineering?

Interface engineering is the field focused on designing, optimizing, and managing the points where different systems, materials, or components meet and interact. It plays a crucial role in areas such as electronics, materials science, and software development, ensuring smooth communication, compatibility, and performance between interfaces. Interface engineers often work on developing user-friendly interfaces, improving system integration, or enhancing the efficiency and reliability of connections within devices or applications.

What are the key skills and qualifications needed to thrive as an interface engineer, and why are they important?

To thrive as an Interface Engineer, a solid background in computer science, user interface (UI) design, and experience with programming languages like JavaScript, HTML, and CSS are essential. Familiarity with frameworks such as React or Angular, design tools like Figma or Sketch, and knowledge of API integration are commonly required technical proficiencies. Strong problem-solving skills, attention to detail, and effective collaboration and communication abilities set standout professionals apart. These skills and qualifications are critical for creating seamless, user-friendly interfaces that meet both technical requirements and user expectations.

What are some common challenges faced by interface engineers when collaborating with cross-functional teams?

Interface engineers often work closely with designers, backend developers, and product managers to deliver seamless user experiences. A common challenge is ensuring clear communication of technical constraints and design intentions, especially when requirements change rapidly. Balancing user-centric design with technical feasibility can require frequent negotiation and creative problem-solving. Effective interface engineers proactively engage in discussions, use collaborative tools, and document decisions to keep everyone aligned and projects on track.

What is the difference between Interface Engineering vs Mechanical Engineering?

AspectInterface EngineeringMechanical Engineering
Required CredentialsBachelor's in Engineering, specialized training in interface designBachelor's or higher in Mechanical Engineering, professional licensure often preferred
Work EnvironmentTech companies, product development, hardware-software integrationManufacturing, automotive, aerospace, design and testing labs
Industry UsageTechnology, electronics, consumer devicesMechanical systems, machinery, structural design

Interface Engineering focuses on designing and optimizing the connections between hardware and software components, often in tech and electronics sectors. Mechanical Engineering covers the design, analysis, and manufacturing of mechanical systems. While both roles require engineering degrees, Interface Engineers specialize in interface design, whereas Mechanical Engineers work on physical systems and machinery.

How much does an interface engineer make?

The average salary for an interface engineer typically ranges from $70,000 to $120,000 annually, depending on experience, location, and industry. Entry-level positions may start lower, while experienced engineers with specialized skills in UI/UX design or front-end development can earn higher salaries.

What does an interface engineer do?

An interface engineer designs, develops, and tests user interfaces and system interactions to ensure seamless communication between hardware and software components. They often work with programming languages, UI/UX principles, and tools like HTML, CSS, and JavaScript, focusing on creating intuitive and efficient user experiences. The role may also involve collaborating with cross-functional teams and maintaining interface documentation.

What are popular job titles related to Interface Engineering jobs in California?

For Interface Engineering jobs in California, the most frequently searched job titles are:

What job categories do people searching Interface Engineering jobs in California look for?

The top searched job categories for Interface Engineering jobs in California are:

Interface Engineering jobs near you
Infographic showing various Interface Engineering job openings in California as of August 2026, with employment types broken down into 84% Full Time, 10% Part Time, 5% Contract, and 1% Nights. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $103,733 per year, or $49.9 per hour.

Commissioning Authority (MEP)

Los Angeles, CA • On-site

Interface Engineering
Professional, Scientific, and Technical Services • 51 - 200 employees
Learn more about Interface Engineeringexternal

$80K - $125K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 9 hours ago

Job description

Join a People-First, Employee-Owned Firm That's Redefining Flexibility and Growth
Commissioning Authority (MEP) - Los Angeles, CA (Hybrid)
Interface Engineering Inc.
At Interface Engineering, we believe your career should be as dynamic and rewarding as the projects you support. As a 100% employee-owned firm, we are proud to offer our Collaboration from Home policy-giving you the flexibility of a hybrid schedule (2 days in-office minimum) while staying connected to a team that values innovation, inclusion, and impact.
Why Interface?
We're not just engineers-we're collaborators, mentors, and trailblazers in high-performance design. Our Pathway to Leadership program offers a transparent, personalized roadmap for career advancement, empowering you to grow in the direction that excites you most.
Our Culture
Interface has the company culture and work environment you have been seeking! You'll find a workplace with a culture of fun, superior work/life balance benefits, expansive personal development opportunities, innovative technology, and great relationships. You'll work alongside MEP industry leaders who will help you develop your own thriving career path. Our work takes us around the globe and on a steady growth curve. Our success and innovation are powered by people like you!
Our Core Values:
The following Core Values capture the essence of who we are. We live and breathe them, and they inform everything we do.
  • We are Conscientious.
  • We are Empowered.
  • We are Respectful.
  • We are Transformative.
  • We are Resilient.

Key Responsibilities:
As an Interface Engineering Commissioning Authority, your responsibilities will include (but may not be limited to):
  • Performing design reviews.
  • Submitting design reviews for approval.
  • Developing commissioning specifications, pre-functional checklists, and functional performance tests.
  • Conducting energy audits and retro-commissioning.
  • Manage commissioning projects for small and medium sized projects.

What You'll Bring:
Required:
  • 3+ years' experience in building commissioning, mechanical design, test & balance, or programming of HVAC controls.
  • Strong knowledge of building systems including mechanical, electrical, plumbing, and direct digital control systems.
  • The physical ability to conduct field work including climbing ladders, walking on roofs, and maneuvering through construction sites in a safe manner.
  • Excellent time management and communication skills.
  • Thorough understanding of construction documents, including drawings and specifications.
  • Troubleshooting and problem-solving aptitude.
  • A strong work ethic and the ability to manage multiple projects within their allocated budget.
  • Experience in functional testing of pumps, chillers, cooling towers, boilers, air handling systems, radiant floors, venturi valves, fume hoods, lighting controls, backup power systems.
  • Experience in developing project specific commissioning plans, pre-functional checklists, and functional performance tests.
  • Willingness to travel out of the Oakland/San Francisco metro area (overnight to conduct field work) up to 40% of the time.

Preferred:
  • A BS degree in mechanical engineering; or a minimum of 2 years' experience in the field of mechanical startup, test & balance, direct digital controls, energy management, and commissioning will be considered in lieu of a degree.
  • PE License (or interest to obtain licensing).
  • Commissioning certification from BCxA, ACG, or ASHRAE or interest in obtaining within 6-12 months of employment.
  • Previous experience in retro-commissioning and energy audits.
  • Experience in the commissioning of laboratories, office buildings, higher education, mission critical, K-12, and other commercial facilities.
  • Experience with other building systems such as backup power, fire alarm, security systems, energy metering, and photovoltaic energy systems.
  • Experience in HVAC design is beneficial but not required.
  • Knowledge of ASHRAE Standard 90.1, California Title 24, and Washington State Energy Codes.

What You'll Love
  • Competitive Pay: $75,000 to $125,000 annual salary and conditional bonus
  • Employee Ownership: Build equity through our Employee Stock Ownership Plan (ESOP)
  • Robust Benefits: 401(k), medical/dental/vision, life & disability insurance, transportation benefits...and more!
  • Generous Time Off: PTO, paid holidays, and company closure to clients from Christmas to New Year's
  • Purpose-Driven Culture: Paid volunteer time and a commitment to social equity
  • Career Development: Work alongside industry leaders and access continuous learning opportunities

Ready to grow with us?
If you are looking for a role where your voice matters, your growth is supported, and your work makes a difference-apply today and become part of the Interface Engineering family.
Social Equity:
Interface is committed to social equity within our walls and in our communities. We are a diverse, inclusive, and responsible firm. Interface provides equal employment opportunities (EEO) to employees and applicants regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status or any other applicable federal or state-protected classifications. We support local business and seek to partner with small and minority-owned firms on our projects. Our staff is empowered to design community service programs (e.g., clean up beaches, serve meals at shelters, tutor school-aged children, etc.) - using paid volunteer time.
Please note: H1-B visa sponsorship or transfer is not approved for this position.
#LI-EJ1
Pay Range: $80,000 - $125,000 per year

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