Senior Engineer - Data Reliability

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. Posting Open Date: Feb. 25, 2026 Anticipated Posting Close Date*: March 25, 2026 *Job posting may close early due to the volume of applicants. Senior Software Engineer - Data Reliability The Data Reliability team is looking for a talented Senior Software Engineer to help build and support the next generation of data stores for Fastly. The ideal candidate will have experience working with backend and data services in cloud systems; be skilled with configuration and orchestration tools such as Terraform and Kubernetes; and be able to develop internal administration tools in Go and similar. Our team is responsible for supporting the infrastructure, orchestration, and reliability needs of some of Fastly’s most data-intensive applications, using technologies like Terraform, Elasticsearch, ClickHouse, Prometheus, MySQL, and Redis in both cloud- and hardware-based environments. Our systems directly contribute to our customers' success by providing our product teams with a platform for effective and reliable delivery of high-quality, high-throughput, globally distributed data systems and products. You will be integral to this mission. We are a distributed team, and employ a variety of styles to get our work done—though we put a high value on working collaboratively, we also rely on asynchronous communication. What You'll Do: Deploy, support, and maintain several different types of critical data storage systems on scales from gigabytes to petabytes Develop statistics and dashboards to measure service-level objectives for these systems Maintain and create tools for management of configuration, backup, and authenticated access to data systems using peer review, CI/CD, and both daemon- and container-based deployment Write code that is performant, maintainable, clear, and concise and contribute to code reviews, improving the codebase and other team processes Technical leadership of full lifecycle projects, driving project progress and collaborating with project stakeholders - Coordinate and communicate with the team members and across other technical and cross functional teams. Foster relationships with other teams to understand and provide for end-user needs. Help project, plan, and scale for growth Document processes and requirements for both intra- and cross-team knowledge transfer 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: Significant professional experience building and maintaining at least one category of backend system, including both APIs and datastores (relational-, column-, vector-, or document-oriented) Most Senior Engineers at Fastly have more than 5 years of related experience. Experience measuring customer-focused performance using tools like Prometheus or DataDog Significant experience with Kubernetes and related technologies, including containerization, deployments, and Helm chart construction Experience developing automation tools in Go and other languages, with an aptitude for learning new languages and technologies Terraform skills, including working with modules and remote state Suitable command-line skills, including file systems, permissions, and storage A collaborative mindset with experience working across cross-functional teams, fostering a culture of respect, collaboration, and knowledge sharing A great teammate: communicative, collaborative, empathetic with a thoughtful, customer-driven approach We’ll be super impressed if you have experience in any of these: Advanced Linux administration skills, including file systems, networking, iptables/nftables, scheduler configuration, and/or I/O analysis Performance measurement using eBPF, flame graphs, etc. A strong grasp of networking, routing, network protocols, and related concepts Knowledge of one or more host management tools (Chef, Ansible, Puppet) More data storage familiarity, especially Elasticsearch Work Hours: This position will require you to be available during core North American business hours and evenings and weekends as needed for on-call support. Our team's timezones span from UTC-8 (Pacific) to UTC-3. Work Location(s) & Travel Requirements: This position is open to the following office locations: San Francisco, CA 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. 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 is $181,220 to $217,464. 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. 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.