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Principal Staff Jobs (NOW HIRING)

Xsolla

Principal / Staff Data Scientist

ABOUT YOU We are looking for an accomplished Principal Machine Learning Engineer to join our global ML organization. In this role, you will drive innovation across our machine learning ecosystem ...

Astronics

Principal Staff Electrical Engineer

Waukegan, IL · On-site

$132K - $161K/yr

Join the Astronics team as a Principal Staff Electrical Engineer. Job Summary: Experienced developer with proven ability to design for passing EMI/EMC tests and to troubleshoot and diagnosis EMC/EMI ...

Astronics-

Principal Staff Electrical Engineer

Waukegan, IL · On-site

$132K - $161K/yr

Join the Astronics team as a Principal Staff Electrical Engineer! Job Summary: Experienced developer with proven ability to design for passing EMI/EMC tests and to troubleshoot and diagnosis EMC/EMI ...

Astronics

Principal Staff Electrical Engineer

Waukegan, IL · On-site

$132K - $161K/yr

Join the Astronics team as a Principal Staff Electrical Engineer. Job Summary: Experienced developer with proven ability to design for passing EMI/EMC tests and to troubleshoot and diagnosis EMC/EMI ...

Astronics

Principal Staff Electrical Engineer

Waukegan, IL

$132K - $161K/yr

Join the Astronics team as a Principal Staff Electrical Engineer! Job Summary: Experienced developer with proven ability to design for passing EMI/EMC tests and to troubleshoot and diagnosis EMC/EMI ...

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As of Sep 13, 2026, the average yearly pay for principal staff in the United States is $109,393.00, according to ZipRecruiter salary data. Most workers in this role earn between $85,000.00 and $125,000.00 per year, depending on experience, location, and employer.

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Principal Staff Engineer - Web Platform

Calabasas, CA • On-site

Protingent
Recruiting and Staffing Services • 51 - 200 employees
Learn more about Protingentexternal

$130K - $195K/yr

Full-time

Re-posted 19 days ago

Job description


Job Title: Principal Staff Engineer - Web Platform
Position Description: Protingent Staffing has an exciting direct hire Principal Staff Engineer - Web Platform opportunity with our client located in Calabasas, CA.
Job Responsibilities:
  • Full-Stack Platform Engineering: Design, develop, and maintain scalable features and services across a LAMP-based ecommerce platform, with a strong focus on reliability, performance, maintainability, and operational excellence.
  • Production Operations & Incident Response: Act as a senior technical escalation point for complex production incidents, troubleshooting issues across application, infrastructure, networking, database, CDN, and deployment layers. Lead root cause analysis and drive long-term stability improvements.
  • AWS Infrastructure Ownership: Manage and optimize AWS infrastructure, including deployment architecture, scaling strategies, observability, security, disaster recovery, and cost efficiency. Partner closely with DevOps and engineering leadership on operational best practices.
  • High-Scale Performance Optimization: Monitor and improve application, database, and infrastructure performance for high-traffic consumer web applications. Identify bottlenecks and implement scalable solutions to improve uptime, latency, and system resilience.
  • Cross-Functional Technical Leadership: Partner with Product, Design, Operations, and Customer Experience teams to translate business requirements into scalable technical solutions and ensure successful project execution.
  • Global Engineering Collaboration: Work closely with the China-based engineering team to coordinate development efforts, conduct code reviews, align on architectural direction, manage releases, and maintain strong engineering communication across time zones.
  • Code Quality & Engineering Standards: Champion high engineering standards through code reviews, testing strategies, documentation, observability, and operational best practices. Drive continuous improvement in system reliability and development processes.
  • Technical Mentorship & Leadership: Provide technical mentorship and architectural guidance across the engineering organization. Influence technical direction through hands-on leadership, strong execution, and collaborative problem-solving.

Job Qualifications:
  • Senior-Level Full-Stack Engineering Experience: 7+ years of professional experience building and operating large-scale web applications, including substantial hands-on experience with the LAMP stack (Linux, Apache, MySQL, PHP).
  • Strong AWS & Cloud Operations Expertise: Deep hands-on experience with AWS services and production cloud environments, including EC2, RDS, S3, Lambda, CloudWatch, networking, scaling, monitoring, and infrastructure troubleshooting.
  • Ecommerce & High-Traffic Website Experience: Experience supporting high-volume consumer-facing websites or ecommerce platforms, with a strong understanding of scalability, uptime, performance optimization, and operational reliability.
  • Production Troubleshooting Expertise: Demonstrated ability to diagnose and resolve complex production issues under pressure, including database replication issues, performance degradation, infrastructure failures, deployment issues, and site outages.
  • Distributed Systems & Database Knowledge: Strong understanding of distributed web architectures, database performance tuning, replication strategies, caching, queuing systems, and fault-tolerant system design.
  • Global Team Collaboration: Experience working effectively with offshore or globally distributed engineering teams, with strong communication, coordination, and cross-cultural collaboration skills.
  • Chinese Language Skills: Ability to communicate in Mandarin (spoken or written) is highly desirable to facilitate collaboration with the China-based engineering team.
  • Engineering Best Practices: Strong understanding of software engineering fundamentals including Git workflows, CI/CD pipelines, automated testing, observability, code review practices, and secure development standards.
  • Ownership Mentality: Self-directed engineer with strong operational instincts, excellent judgment, and the ability to independently own critical technical initiatives from design through production support.
  • Technical Leadership: Demonstrated ability to influence engineering direction, mentor developers, and drive technical excellence through hands-on leadership rather than direct people management.

Job Details:
  • Job Type: Direct Hire
  • Location: Calabasas, CA (Hybrid 3 days onsite, 2 remote)
  • Salary: $130K - $195K

About Protingent: Protingent is an Award-Winning provider of top-tier Engineering and IT talent, trusted by companies at the forefront of innovation - from Software and Aerospace to AI, Clean Tech, Medical Devices, and Connected Technologies. We're passionate about making a positive impact by connecting exceptional talent with meaningful opportunities and helping our clients build the future.
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