1

Freelance Process Engineer Jobs in California (NOW HIRING)

Data Engineer

Pleasanton, CA · On-site

$60 - $65/hr

Support production issues, continuous improvements, and Agile development processes. * Contribute ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...

Design and implement large-scale data processing systems using Big Data technologies such as Hadoop ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...

Lead Data Engineer

San Francisco, CA · On-site

$134K - $161K/yr

Optimize cloud-based data processing for performance, scalability, reliability, and cost efficiency ... freelancers - which sets us apart in the industries we serve. About Solomon Page Founded in 1990 ...

Cloud Software Engineer II

Sylmar, CA · On-site

$81K - $141K/yr

... process that meets FDA and other regulatory agencies requirements. Work on software design, coding ... freelance work and professional experience). * Excellent communication skills and be able to work ...

... process that meets FDA and other regulatory agencies requirements. Work on software design, coding ... freelance work and professional experience). * Excellent communication skills and be able to work ...

... process that meets FDA and other regulatory agencies requirements. Work on software design, coding ... freelance work and professional experience). * Excellent communication skills and be able to work ...

... freelance AI training gigs to first internships to full-time careers and beyond. This unique value ... Modernize existing provisioning logic and replace manual processes with scalable automation ...

Datawarehouse TEST LEAD

Los Angeles, CA · On-site

$51.25 - $69.75/hr

... as overall process owner (Meter to Cash, Customer Experience, Sales &Service) • Test ... Can we use Freelancer? : No * Named Job Posting? (if Yes - needs to be approved by SCSC) : No

Showing results 21-40

Freelance Process Engineer information

See California salary details

$48.9K

$90.8K

$140.6K

How much do freelance process engineer jobs pay per year?

As of Aug 16, 2026, the average yearly pay for freelance process engineer in California is $90,813.00, according to ZipRecruiter salary data. Most workers in this role earn between $73,500.00 and $101,700.00 per year, depending on experience, location, and employer.

What is the difference between Freelance Process Engineer vs Process Engineer?

AspectFreelance Process EngineerProcess Engineer
CredentialsRelevant engineering degree, certifications optionalEngineering degree, professional certifications often preferred
Work EnvironmentIndependent, project-based, remote or on-siteFull-time, employed by a company, on-site or hybrid
Employer & Industry UsageClients across industries, contract-basedManufacturing, chemical, or industrial firms
Search & Comparison IntentFreelance Process Engineer vs Process EngineerFreelance Process Engineer vs Process Engineer

While both roles focus on optimizing processes, a Freelance Process Engineer works independently on various client projects, often remotely, and may lack the full-time employment benefits. A Process Engineer is typically employed full-time within a company, focusing on ongoing process improvements in a specific industry. The choice depends on your preference for independence versus stability.

What is a freelance process engineer?

A Freelance Process Engineer is a professional who designs, optimizes, and troubleshoots industrial processes on a contract or project basis, rather than as a full-time employee. They work with companies in industries like manufacturing, pharmaceuticals, or energy to improve efficiency, safety, and productivity. Freelance Process Engineers often handle multiple clients, offering flexibility and specialized expertise for short-term or ongoing projects. They may be involved in process design, simulation, equipment selection, or regulatory compliance.

How do freelance process engineers typically collaborate with client teams during projects?

Freelance Process Engineers often work closely with client teams by participating in regular virtual meetings, providing detailed progress updates, and integrating feedback to ensure alignment with project goals. Effective collaboration may require adapting to different communication styles and project management tools used by various organizations. Building strong professional relationships and being proactive in clarifying expectations are key to overcoming challenges such as remote integration and limited onsite presence. This collaborative approach helps ensure successful project delivery and client satisfaction.

What are the key skills and qualifications needed to thrive as a freelance process engineer?

To thrive as a Freelance Process Engineer, a strong background in chemical or mechanical engineering, process optimization, and project management, often supported by a relevant engineering degree and professional certification, is essential. Familiarity with industry-standard tools such as AutoCAD, Aspen HYSYS, and process simulation software is typically required. Exceptional problem-solving, communication, and client management skills help freelancers stand out by effectively addressing client needs and adapting to diverse projects. These abilities enable the engineer to deliver efficient solutions, ensure client satisfaction, and maintain a competitive edge in the freelance marketplace.

What are the most commonly searched types of Process Engineer jobs in California?

The most popular types of Process Engineer jobs in California are:

What job categories do people searching Freelance Process Engineer jobs in California look for?

The top searched job categories for Freelance Process Engineer jobs in California are:

What cities in California are hiring for Freelance Process Engineer jobs?

Cities in California with the most Freelance Process Engineer job openings:

Infographic showing various Freelance Process Engineer job openings in California as of August 2026, with employment types broken down into 43% Full Time, 30% Part Time, and 27% Contract. Highlights an 100% In-person job distribution, with an average salary of $90,813 per year, or $43.7 per hour.

Senior/Staff GIS Engineer, HD Mapping

Gatik AI

Santa Clara, CA

$160K - $230K/yr

Full-time

Re-posted 15 days ago


Job description

Who we are

Gatik, the leader in autonomous middle-mile logistics, is revolutionizing the B2B supply chain with its autonomous transportation-as-a-service (ATaaS) solution and prioritizing safe, consistent deliveries while streamlining freight movement by reducing congestion. The company focuses on short-haul, B2B logistics for Fortune 500 retailers and in 2021 launched the world's first fully driverless commercial transportation service with Walmart. Gatik's Class 3-7 autonomous trucks are commercially deployed across major markets, including Texas, Arkansas, and Ontario, Canada, driving innovation in freight transportation. 

The company's proprietary Level 4 autonomous technology, Gatik Carrier, is custom-built to transport freight safely and efficiently between pick-up and drop-off locations on the middle mile. With robust capabilities in both highway and urban environments, Gatik Carrier serves as an all-encompassing solution that integrates advanced software and hardware powering the fleet, facilitating effortless integration into customers' logistics operations. 

About the role
We are seeking a highly motivated and technically proficient GIS Engineer, HD Mapping to join our team.
As a Geospatial / HD Mapping Engineer, you will be a key contributor to the expansion and optimization of our HD Mapping production pipeline. This hands-on role involves working with large-scale LiDAR and camera datasets, developing geospatial processing workflows, and improving our routing and topology validation systems. You will collaborate closely with internal teams and external partners to deliver high-quality maps under tight operational timelines.
This position requires a deep passion for geospatial data, strong software engineering skills, and the ability to thrive in a fast-paced production environment.Key Responsibilities: HD
Mapping & Spatial Data Production
 
This role is onsite 5 days/week in our Mountain View, CA office!
What you'll do
  • Mapping Pipeline Development: Contribute to the design, development, and expansion of the HD Mapping production pipeline.
  • Data Processing and Validation:
    Process, clean, and validate large-scale LiDAR point cloud datasets.
    Extract and refine road-based linear and polygonal features.
    Annotate and validate 3D objects and roadway furniture.
    Perform topology validation of road networks (lane connectivity, intersection logic, turn constraints).
  • Software Engineering:
    Develop and maintain Python-based geospatial data processing tools (required).
    Contribute to performance-critical components using C++ (optional).
    Manage and process large spatial datasets using cloud infrastructure (Azure preferred).
  • Database and Spatial Queries: Work with PostGIS databases to perform advanced spatial queries, including intersection detection, geometry building/transformation, and query optimization.
  • Data Management & Collaboration:
    Support data migration, versioning, and format conversion (OSM, OpenDrive, Lanelet).
    Coordinate with remote freelancers and distributed contributors. Work closely with autonomy, perception, and planning engineering teams.
    Manage Jira tickets, contribute to sprint planning, and provide structured progress reports.
    Maintain high quality standards while delivering under tight deadlines
What we're looking for
  • Bachelor's or Master's degree in Computer Science, Geospatial Engineering, Robotics, Civil Engineering, or a related technical field.
  • Minimum 3+ years of professional experience in geospatial systems, mapping, or related fields.
  • Strong hands-on experience with GIS platforms (e.g., ArcGIS, QGIS, MicroStation) and specialized tools (e.g., CloudCompare, MicroStation, OpenCities, TerraSolid, Lidar360).
  • Proven experience working with large-scale mapping/geospatial production projects and a strong understanding of LiDAR processing workflows.
  • Technical Skills:
    Strong Python programming skills.
    Experience with geospatial libraries (e.g., GDAL, Shapely, GeoPandas).
    Experience with PostGIS, including spatial indexing and query optimization.
    Familiarity with data formats: OSM, Lanelet, OpenDrive, GeoJSON, LAS/LAZ
Bonus Qualifications
  • Experience in HD Mapping production pipelines for autonomous vehicles.
  • Experience validating road network topology and connectivity logic.
  • Familiarity with routing algorithms and graph-based road modeling.
  • Experience with automation pipelines and CI/CD for geospatial systems.
  • Understanding of coordinate systems, projections, and EPSG transformations.
  • Experience with sensor calibration workflows (LiDAR + camera).
  • Experience managing distributed contributors or remote freelancers

Salary Range- $160,000- $230,000

More about Gatik

Founded in 2017 by experts in autonomous vehicle technology, Gatik has rapidly expanded its presence to Mountain View, Dallas-Fort Worth, Arkansas, and Toronto. As the first and only company to achieve fully driverless middle-mile commercial deliveries, Gatik holds a unique and defensible position in the AV industry, with a clear trajectory toward sustainable growth and profitability.

We have delivered complete, proprietary AV technology - an integration of software and hardware - to enable earlier successes for our clients in constrained Level 4 autonomy.  By choosing the middle mile - with defined point-to-point delivery, we have simplified some of the more complex AV challenges, enabling us to achieve full autonomy ahead of competitors. Given extensive knowledge of Gatik's well-defined, fixed route ODDs and hybrid architecture, we are able to hyper-optimize our models with exponentially less data, establish gate-keeping mechanisms to maintain explainability, and ensure continued safety of the system for unmanned operations.

Visit us at Gatik for more company information and Careers at Gatik for more open roles.

Notable News
  • Bloomberg: Autonomous Trucking Firm Gatik Inks Contracts Worth $600 Million
  • Forbes: Hundreds' Of Gatik Robot Delivery Trucks Headed For U.S. Roads
  • Forbes:Gatik And Loblaw Announce Largest Commercial Deployment Of AV Trucks
  • Forbes: Forget robotaxis. Upstart Gatik sees middle-mile deliveries as the path to profitable AVs
  • Tech Brew: Gatik AI exec unpacks the regulations that could shape the AV industry
  • Business Wire: Gatik Paves the Way for Safe Driverless Operations ('Freight-Only') at Scale with Industry-First Third-Party Safety Assessment Framework
  • Auto Futures: Autonomous Trucking Group Gatik Secures Investment From NIPPON EXPRESS HOLDINGS
  • Automotive News: Gatik foresees hundreds of self-driving trucks on road soon, and that's just the beginning
  • Forbes: Isuzu And Gatik Go All In To Scale Up Driverless Freight Services
  • Bloomberg: Autonomous Vehicle Startup Takes Off by Picking Off Easier Routes
  • Reuters: Driverless vehicles on limited routes bump along despite US robotaxi scrutiny
Taking care of our team

At Gatik, we connect people of extraordinary talent and experience to an opportunity to create a more resilient supply chain and contribute to our environment's sustainability. We are diverse in our backgrounds and perspectives yet united by a bold vision and shared commitment to our values. Our culture emphasizes the importance of collaboration, respect and agility.

We at Gatik strive to create a diverse and inclusive environment where everyone feels they have opportunities to succeed and grow because we know that together we can do great things. We are committed to an inclusive and diverse team. We do not discriminate based on race, color, ethnicity, ancestry, national origin, religion, sex, gender, gender identity, gender expression, sexual orientation, age, disability, veteran status, genetic information, marital status or any legally protected status.