New

Sr Site Reliability Engineer

Zayo Group
life insurance, vision insurance, parental leave, paid time off, 401(k)
United States, Colorado, Boulder
Feb 18, 2026
Company Description Zayo provides mission-critical bandwidth to the world's most impactful companies, fueling the innovations that are transforming our society. Zayo's 141,000-mile network in North America and Europe includes extensive metro connectivity to thousands of buildings and data centers. Zayo's communications infrastructure solutions include dark fiber, private data networks, wavelengths, Ethernet, and dedicated Internet access. Zayo serves wireless and wireline carriers, media, tech, content, finance, healthcare and other large enterprises. Do you dream in high scalable systems, thrive in fast-paced environments and enjoy tackling complex technical challenges? Are you passionate about building and maintaining highly reliable, scalable systems? If so, then join our team as a Senior Site Reliability Engineer (SRE)! Zayo is seeking a talented Senior Site Reliability Engineer (SRE) to join our team and play a critical role in ensuring the uptime, performance, and scalability of our critical infrastructure. Responsibilities: Incident Management: Own the incident lifecycle, from leading root cause analysis and resolution to implementing preventative measures to avoid future occurrences. Be on call to diagnose and resolve critical service outages. Reliability Engineering: Proactively identify and mitigate potential system risks, focusing on automation, monitoring, and tooling to ensure high service availability. Scalability and Performance: Design and implement solutions to ensure our infrastructure can handle ever-growing demands while maintaining optimal application performance. Collaboration: Work closely with developers, product managers, and other engineers to translate business needs into robust and reliable technical solutions. Become the beacon for best practices and efficient processes throughout the organization. Continuous Learning: Stay up to date with the latest trends and technologies in SRE practices, automation tools, and cloud platforms. Qualifications: Bachelor's degree in computer science, engineering, or a related field (or equivalent experience) Minimum of 7 (seven) years of experience in a Site Reliability Engineering or related role Strong understanding of system administration, Linux, and scripting languages (Python and various shells) Experience working in large scale distributed production environments Experience with cloud platforms especially troubleshooting and debugging in AWS using AWS native tools Experience with container orchestration (Kubernetes and Docker) Experience deploying and managing scalable infrastructure within AWS and Kubernetes ecosystems using Terraform and other cloud-native approaches Experience with infrastructure management tools such as Ansible, Terrafor, Puppet, etc Experience with monitoring and alerting tools (Prometheus, Grafana, Cacti, etc.) Experience with monitoring platforms such as SevOne, Assure1, and Nagios Proven ability to work independently and as part of a team. Excellent problem-solving, analytical, and critical thinking skills. A passion for automation and building efficient systems. Bonus Points if you have: Experience working with various vendor APIs (or Netconf) including Nokia, Juniper, Fujitsu, Infinera, Cisco, and Ciena Strong working knowledge of networking concepts and application protocols, especially TCP/IP, BGP, DNS, and more with focused experience on Internet Service Provider services such as IP VPN, Transit, and Waves Experience with various network orchestration platforms such as Ciena Blue Planet MDSO, Cisco NSO, Nokia NSP, or others Previous experience with Golang Estimated Base Pay Range: $112,800 - $173,600 USD/annually The base pay range shown is a guideline and reasonable estimate for this role. It takes into account the wide variety of factors that are considered in making compensation decisions. Actual compensation offered may vary from the posted range based upon geographic location, work experience, skill level, certifications, and other business and organizational needs. Non- sales roles may be eligible to participate in a discretionary annual incentive plan. Sales roles may be eligible to participate in a sales incentive plan. Additionally, this position may be eligible for certain benefits, such as health insurance, life insurance, disability retirement plans, paid time off. The posting will be active for a minimum of 3 days. The active posting will continue to extend by 3 days until the position is filled. Benefits, Rewards & Wellness Excellent Health, Dental & Vision Insurance Retirement 401(k) Savings Plan Generous paid time off policy including paid parental leave Zayo provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, provincial or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.