Customer Support Engineer

Back to jobs New Customer Support Engineer Denver, CO; New York City, NY Apply 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 our customers' applications as close to their end-users as possible — at the edge of the Internet. The platform is designed to take advantage of the modern internet, to be programmable, and to support agile software development. Fastly's customers include many of the world's most prominent companies, including GitHub, Yelp, Paramount, and JetBlue. We're building a more trustworthy Internet. Come join us. Customer Support Engineer The Fastly Edge Cloud Platform powers the best of the internet, and our Customer Support Engineering (CSE) — a key function within our broader Customer Experience organization — ensures customer experiences are a success through a transparent and timely support management system. This opening is for a Customer Support Engineer, Tier I, an entry-level position within our three-tiered team (Tier I, Tier II, and Tier III) that offers multiple opportunities for future career development within Fastly. Fastly is seeking a technical expert for customers using our delivery and compute platforms. This role requires a strong understanding of internet protocols and the ability to advise on code updates that modify traffic at the network edge. You will not handle general IT or security (WAF/DDoS) tickets; instead, you will be the definitive expert on VCL logic, serverless compute, and the Fastly Control Panel.

What You'll Do:

Programmable edge troubleshooting: Review our customer configurations and debug VCL logic and Compute (Wasm) applications, optimizing cache hit ratios, and manipulating HTTP headers.

UI mastery:

Guide customers through the Fastly Control Panel, RBAC configurations, and custom observability dashboards.

High-velocity customer support:

Resolve technical inquiries across email, chat, and Slack with a target first response time (FRT) of less than 30 minutes.

Customer advocacy and continuous learning:

Move beyond just fixing tickets by educating customers on edge architecture and troubleshooting methodologies. Actively seek out new mitigation strategies and triage tips, sharing your learnings and contributing to our established documentation.

Omnichannel customer support:

Resolve technical inquiries across email, chat (powered by Slack), and portal engagements, including live triage sessions over video or telephone conferences, with a target first response time (FRT) Service Level Agreement (SLA). ​​Collaborative escalation: Recognize when to ask for help. You will learn to properly escalate support cases to higher-tier teams to advocate for a timely resolution for our customers. Live event monitoring and on-call coverage: Monitor metrics during large network events and proactively report degradation to our customers. This role includes an on-call rotation managed by PagerDuty, covering weekends, select after-hours, and corporate holidays (which includes additional holiday pay).

What We're Looking For:

Experience:

2-4 years in a technical support, sysadmin, or network-focused role.

Protocol proficiency:

Demonstrated understanding of HTTP/s, TCP/IP, TLS, and DNS (must explain delivering a webpage in under 200 milliseconds).

Program Language Proficiency:

Recent coding bootcamp graduates with a focus in VCL, Python, Ruby/Go, JavaScript, Rust, etc. with a demonstrated entry to moderate level of efficiency.

UI and API literacy:

Proficiency navigating modern SaaS control panels and RESTful APIs via CLI.

Customer-facing business acumen:

Strong written communication skills and analytical skills with experience supporting customers via email, chat, ticketing system or phone Triage proficiency: Demonstrated understanding of network related telemetry and diagnostic tools Industry exposure: Demonstrated understanding of networking, including, BGP, internet routing, and the difference between transit and peering We'll be super impressed if you have experience in any of these: BA/BS degree or equivalent experience, major in engineering, computer science, or MIS a plus Experience with Varnish, Varnish Configuration Language Experience in the CDN or cloud computing industries Experience in review/diagnosing log tools (DataDog, New Relic, etc) Basic knowledge of Cloud Platforms (GCP, Azure, AWS)

Work Hours:

This position will require you to work a Tuesday

• Saturday Shift EST hours.

This position will require an estimated 12-24 hours per month on-call Work Location(s) &

Travel Requirements:

This position is open to the following preferred office locations: New York, NY, US Denver, CO, US Fastly currently embraces a largely hybrid model for most roles which allows employees flexibility to split their time between the office and home. 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 is $77,060 to $108,780. 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? For a U.S

• based role: 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 12 paid local holidays, 12 paid company wellness days.

• Why Fastly?

We have a huge impact. Fastly is a small company with a big reach. Not only do our customers have a tremendous user base, but we also support a growing number of open source projects and initiatives . Outside of code, employees are encouraged to share causes close to their heart with others so we can help lend a supportive hand. We value diversity. Growing and maintaining our inclusive and diverse team matters to us. We are committed to being a company where our employees feel comfortable bringing their authentic selves to work and have the ability to be successful

• every day.

We are passionate. Fastly is chock full of passionate people and we're not 'one size fits all'. Fastly employs authors, pilots, skiers, parents (of humans and animals), makeup geeks, coffee connoisseurs, and more. We love employees for who they are and what they are passionate about. We're always looking for humble, sharp, and creative folks to join the Fastly team. If you think you might be a fit please apply! A fully completed application and resume or CV are required when applying. All job applications must be submitted through our official careers site at www.fastly.com/about/careers . We will never request sensitive information, such as your Social Security number, bank account or credit card information during the application process. All official communication will come from an @ fastly.com or @ recruiting.fastly.com email address. Fastly is committed to ensuring equal employment opportunity and to providing employees with a safe and welcoming work environment free of discrimination and harassment. Our employment decisions are based on business needs, job requirements and individual qualifications. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, family or parental status, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances. Consistent with the Americans with Disabilities Act (ADA) and federal or state disability laws, Fastly will provide reasonable accommodations for applicants and employees with disabilities. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact your Recruiter, or the Fastly Employee Relations team at candidateaccommodations@fastly.com or 501-287-4901. Fastly collects and processes personal data submitted by job applicants in accordance with our Privacy Policy . Please see our privacy notice for job applicants . Create a Job Alert Interested in building your career at Fastly? Get future opportunities sent straight to your email. Create alert Apply for this job

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