Senior Engineer - Data Reliability

Fastly • San Francisco, CA

1d • Hybrid

About The Position

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.

Requirements

• 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

Nice To Haves

• 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

Responsibilities

• 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

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.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed