Posting Open Date: March 19,2026

Anticipated Posting Close Date*: April 20, 2026

*Job posting may close early due to the volume of applicants.

Staff Software Engineer, Traffic Management Systems

Fastly's Traffic Management Systems Team owns and operates the services used to balance the CDN’s traffic globally, as well as Fastly’s Managed DNS product. We are building a world-class DNS product with an autonomous control system that makes real-time data-driven decisions to ensure high levels of availability and performance across our network. We are seeking a technical leader with experience in designing, building and operating distributed systems that are scalable, fault tolerant and easy to manage. You'll be joining a team responsible for critical network services, used by some of the world’s most popular companies to power the Internet. Many of our largest customers rely on our work to ensure a performant and delightful experience for their users. You will play a critical role in ensuring the team's continued success in delivering innovative capabilities.

What You'll Do:

Technical leadership of full lifecycle projects, driving project progress and collaborating with stakeholders
Coordinate and communicate with the team members and across other technical and cross functional teams
Prioritize scalability, security, performance and reliability in the design of the applications you support
Write code that is performant, maintainable, clear, and concise and contribute to code reviews, improving the codebase and other team processes
Mentor and support other engineers, fostering a culture of knowledge sharing, innovation, and collaboration within the team
Participate in on-call rotation as needed

What We're Looking For:

At least 7+ years of experience designing and developing software components on Unix/Linux platforms
5+ years of experience building and operating distributed networking/cloud systems at scale
Track record of writing resilient and maintainable Rust, C, C++ and/or Go code
Strong written and verbal communication skills with the ability to articulate complex technical ideas across multi-functional teams
A passion for learning, and sharing what you’ve learned with others

We’ll be super impressed if you have experience in any of these:

Protocol fluency and hands-on experience developing and operating DNS servers
Experience with major cloud infrastructure providers such as AWS, GCP and/or Azure
Experience with infrastructure as code systems like terraform and Kubernetes
Familiarity with monitoring solutions like Prometheus and Grafana
Experience with Machine Learning & Analytical tools

Work Hours:

This position will require you to be available during core business hours and occasional nights and weekends as required for on-call support.

Work Location(s) & Travel Requirements:

This position is open to the following preferred office locations:

San Francisco, CA
New York, NY
Denver, CO

Fastly currently embraces a largely hybrid model for most roles which allows employees flexibility to split their time between the office and home.

There is a strong preference for Hybrid near a local office. However, we may be willing to consider remote candidates within the US, Canada, and the UK.

This position may require travel as required by your role or requested by your manager.

SF / LA Fair Chance Ordinance Statement

Pursuant to the San Francisco Fair Chance Ordinance and the Los Angeles Fair Chance Initiative for Hiring Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Salary:

The estimated salary range for this position when hired in the US is $211,370 to $253,644.

Starting salary may vary based on permissible, non-discriminatory factors such as experience, skills, qualifications, and location.

This role may be eligible to participate in Fastly’s equity and discretionary bonus programs.

Benefits:

We care about you. Fastly works hard to create a positive environment for our employees, and we think your life outside of work is important too. We support our teams with great benefits that start on the first day of your employment with Fastly. Curious about our offerings?

We offer a comprehensive benefits package including medical, dental, and vision insurance. Family planning, mental health support along with Employee Assistance Program, Insurance (Life, Disability, and Accident), a Flexible Vacation policy and up to 18 days of accrued paid sick leave are there to help support our employees. We also offer 401(k) (including company match) and an Employee Stock Purchase Program. For 2026, we offer 11 paid local holidays, 12 paid company wellness days.