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Open Source Jobs in California (NOW HIRING)

YO AI Labs

Java Open Source Contributor

Los Angeles, CA · Remote

$55 - $71/hr

Java Open Source Contributor Role Type: Contract Location: Remote Scope of Work: * Contribute production-quality code, reviews, and documentation to open-source repositories relevant to the customer ...

YO AI Labs

Java Open Source Contributor

San Francisco, CA · Remote

$60 - $77.75/hr

Java Open Source Contributor Role Type: Contract Location: Remote Scope of Work: * Contribute production-quality code, reviews, and documentation to open-source repositories relevant to the customer ...

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Open Source information

What is an open source?

An Open Source job typically involves contributing to, maintaining, or managing open-source projects. Professionals in this field may work on coding, documentation, community engagement, or software security for open-source software. These roles can be found in tech companies, nonprofits, or as independent contributors. Many open-source jobs require strong collaboration skills and experience with platforms like GitHub or GitLab.

What does a typical workday look like for someone in an open source role?

In an open source role, your day often includes reviewing and contributing code, participating in online discussions, and collaborating with contributors around the world through platforms like GitHub or GitLab. Tasks can range from fixing bugs, implementing new features, reviewing pull requests, to updating documentation. You’ll regularly interact with both internal teams and external contributors, helping maintain the health and progress of open source projects. The work environment is usually highly collaborative and flexible, offering the chance to learn from a diverse, global community while building your technical portfolio.

What are the key skills and qualifications needed to thrive in the open source position, and why are they important?

To excel in open source roles, you need strong programming abilities, proficiency in version control systems (like Git), and a thorough understanding of software development workflows. Familiarity with collaboration platforms such as GitHub or GitLab, and experience with common open source licenses, are often required. Excellent written communication, self-motivation, and adaptability help you succeed in a collaborative, globally distributed community. These skills ensure effective contribution, seamless teamwork, and successful project outcomes in the open source ecosystem.

What are the most commonly searched types of Open Source jobs in California?

The most popular types of Open Source jobs in California are:

What are popular job titles related to Open Source jobs in California?

For Open Source jobs in California, the most frequently searched job titles are:

What job categories do people searching Open Source jobs in California look for?

The top searched job categories for Open Source jobs in California are:

What cities in California are hiring for Open Source jobs?

Cities in California with the most Open Source job openings:

Open Source jobs near you
Infographic showing various Open Source job openings in California as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 14% Part Time, and 2% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution.

Open Source Engineer

Pleasanton, CA • On-site

Rootshell Enterprise Technologies, Inc.
See more jobs at Rootshell Enterprise Technologies, Inc.external

Full-time

Re-posted 16 days ago

Job description

Hello All,
Greetings from Rootshell Inc.
Rootshell Enterprise Technologies Inc. is a recognized provider of professional IT Consulting services in the US. We are actively seeking Open Source Engineer for one of our client, Please share your resume with current location & full contact info
Role:Open Source Engineer
Location: Pleasanton, CA - Hybrid
JD:
We're hiring a self-motivated Open Source Engineer to build, automate, and operate secure, scalable infrastructure for a modern medical research and laboratory environment. You'll focus on medical imaging, laboratory systems, data processing, and research workflows in a regulated, HIPAA-compliant setting. The right candidate brings deep Python and Linux automation skills and is comfortable working across Kubernetes, virtualized, and mixed-OS environments.
Key Responsibilities
  • Build and maintain production-grade automation in Python and shell, including workflow orchestration with Apache Airflow, secure data transfers (SFTP), and reliability improvements.
  • Design, deploy, and operate on-prem Kubernetes clusters (Rancher RKE2 preferred), manage Helm deployments, and handle secrets with HashiCorp Vault.
  • Administer Linux/UNIX systems (RHEL 9.x focus): OS patching, lifecycle management, security hardening, and Ansible automation.
  • Create repeatable VM provisioning pipelines and standardized system builds; support mixed Linux and Windows environments as required.
  • Develop and maintain medical imaging workflows (DICOM query/retrieve, image pulls, storage, automated de-identification) using tools such as Orthanc, DCMTK, or CTP.
  • Support laboratory and research platforms, including LIMS infrastructure, data ingestion workflows, and Windows batch/integration scripts when needed.
  • Install, test, upgrade, and maintain research and enterprise applications across test and production environments (examples: LIMS, JBOSS-based systems, Appian, data analysis tools).
  • Provision and optimize storage access (NFS, S3) and integrate with high-performance storage solutions (Weka, VAST, EMC).
  • Manage Jupyter, R, and RStudio environments, including package management and researcher support.
  • Implement and maintain GitLab-based CI/CD pipelines, infrastructure-as-code, and version-controlled operational runbooks.
  • Ensure systems meet HIPAA, CAP, and ISO compliance requirements - maintain documentation, change control, audit evidence, and traceability.
  • Provide senior-tier Linux/UNIX support to technical teams and researchers, mentor staff, and document operational best practices.
  • Operate independently across multiple concurrent efforts; adapt to evolving laboratory and research needs.

Required Qualifications
  • Advanced Python automation skills; strong Bash/shell scripting experience.
  • Hands-on Linux administration experience (RHEL preferred), including patching, security, and lifecycle management.
  • Proven experience managing on-prem Kubernetes platforms and Helm-based deployments.
  • Solid understanding of Apache Airflow, HashiCorp Vault, and workflow-driven automation.
  • Experience supporting DICOM-based medical or research imaging systems.
  • Working knowledge of NFS and S3 storage models and high-performance storage environments.
  • Demonstrated experience supporting regulated research or healthcare systems, with audit and compliance readiness.
  • Proficiency with GitLab repositories, CI/CD pipelines, and automation workflows.
  • Strong communication, documentation, and cross-disciplinary collaboration skills.

Preferred Qualifications
  • Hands-on experience with LIMS platforms, laboratory instrument integrations, or imaging research workflows.
  • Experience supporting data science platforms or research computing environments.
  • Familiarity with Windows batch scripting for laboratory/data ingestion workflows.
  • Prior experience in healthcare, research, or regulated laboratory environments.

With regards
Naveen | Talent Acquisition
Rootshell Enterprise Technologies Inc.
Naveen@rootshellinc.com | www.rootshellinc.com

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