Join to apply for the Principal Engineer - Edge Delivery role at Fastly .

All potential candidates should read through the following details of this job with care before making an application. Fastly helps people stay better connected with the things they love. Fastly’s edge cloud platform enables customers to create great digital experiences quickly, securely, and reliably by processing, serving, and securing applications close to end-users at the Internet edge. Our platform is programmable, supports agile development, and serves clients like Vimeo, Pinterest, The New York Times, and GitHub. Posting Open Date: May 8, 2025 Anticipated Closing Date: June 9, 2025 Note: Job posting may close early due to high volume of applicants. Role: Principal Software Engineer, Edge Delivery The Edge Delivery team maintains Varnish, Fastly’s core caching platform, and develops scalable services using C and Rust. The role involves hands-on coding, designing system improvements, and providing technical leadership across teams. Responsibilities: Develop in C and Rust to meet diverse customer needs Enhance HTTP support, caching, and customer logic in Varnish Lead full lifecycle projects and communicate progress Coordinate with team members and cross-functional teams Address performance, correctness, and stability issues Participate in code reviews and process improvements Mentor engineers and foster knowledge sharing Participate in on-call rotations Qualifications: Minimum 10 years of software engineering experience, 5+ in networked/distributed/cloud systems At least 3 years with C or Rust Experience with incident response and automation Demonstrable experience is sufficient; CS degree not required Preferred Skills: Security in multi-tenant systems Python scripting Technical writing Experience with high-performance web services like Varnish, nginx, Apache Traffic Server Mentoring and cross-department collaboration Work Details: Core hours with occasional nights/weekends for on-call Hybrid/remote options; preferred locations: San Francisco, NY, Denver Compensation & Benefits: Salary range: $228,280 - $273,936, with potential equity and bonuses. Benefits include health coverage, flexible vacation, paid holidays, wellness days, 401(k), and employee stock purchase plan. Why Join Fastly? Impactful work with a global reach Distributed team culture with in-person onboarding Diversity and inclusion commitment Passionate, diverse community of employees Apply with a complete application and resume. Fastly is an equal opportunity employer and provides accommodations for applicants with disabilities.

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