Sr. Systems Engineer

About the team

About the role

As a Senior Systems Engineer, you'll play a pivotal role in shaping Zillow's next-generation infrastructure platform. This is a highly collaborative, high-impact role for an engineer who thrives on designing, automating, and delivering reliable systems at national scale in a microservices-based, product engineering environment.

You'll help scale and operate infrastructure that supports thousands of services and applications across Zillow Group, while contributing to our long-term strategy of transitioning from traditional operations to platform-based, productized infrastructure services. This evolution empowers teams across the company to manage their infrastructure needs without deep systems knowledge, increasing velocity and reliability.

This is not a maintenance role. You'll shape the future of infrastructure at Zillow, working on high-visibility, high-impact initiatives that simplify and scale infrastructure delivery across the company. You'll introduce new technologies, define best practices, and directly impact developer experience and operational excellence.

If you're passionate about building elegant infrastructure solutions, love to drive change through code, and want to leave your mark on a dynamic and growing engineering organization-we want to hear from you.

In this role, you will:

• Design and build foundational infrastructure services using automation-first, software-defined approaches.
  

• Lead development of reusable infrastructure software that abstracts and simplifies AWS provisioning and lifecycle management.
  

• Contribute to re-platforming legacy infrastructure toward modern, cloud-native solutions.
  

• Drive operational efficiency through system automation, lifecycle management, monitoring, and configuration management.
  

• Own core infrastructure technologies, including OS provisioning, DNS, certificate management, AMIs, and network security groups across Windows and Linux.
  

• Be a key contributor to incident response, change management, and roadmap planning.
  

• Collaborate cross-functionally with engineering and platform teams as your customers to identify infrastructure bottlenecks and develop scalable solutions.
  

• Participate in the team's on-call rotation and continuously improve service reliability and observability.

This role has been categorized as a teleworker position. Teleworkers do not have a permanent corporate office workplace and, instead, work from a physical location of their choice which must be identified to the Company. Employees may live in any part of Mexico, but preferably in Mexico City, as we would encourage attendance for occasional in-office events.

In addition to a competitive base salary and benefits, this position is also eligible for equity awards based on factors such as experience, performance and location.

Who you are

You are a builder and change agent with a product mindset and strong systems engineering background. You thrive in solving infrastructure problems with code and have a passion for clean, repeatable, and scalable processes.

You'll bring:

• 8+ years of experience in Infrastructure, Systems, or Site Reliability Engineering (SRE) within large-scale enterprise environments.
  

• A demonstrated track record of designing, building, and supporting large-scale, highly available infrastructure services using automation and software development principles.
  

• Deep expertise with AWS, including services such as EC2, Route 53, IAM, AMIs, security groups, and cost optimization strategies.
  

• Fluency in Infrastructure-as-Code (IaC) tools such as Terraform or OpenTofu, and experience developing and maintaining automated infrastructure pipelines using tools like GitLab.
  

• Strong scripting and automation skills in Python, Bash, PowerShell, and a functional understanding of other languages such as Java or Go.
  

• Comfort and fluency working across both Linux and Windows environments, including Active Directory, OpenDJ, and large-scale LDAP deployments.
  

• Proficiency in source control systems (e. g. , Git) and an understanding of code lifecycle best practices and branching strategies.
  

• Experience designing and maintaining configuration management, backup and recovery strategies, and vulnerability management systems.
  

• Familiarity with enterprise architecture and the ability to influence and participate in architectural decisions.
  

• Experience building and supporting containerized environments and container image pipelines.
  

• A solid understanding of core networking concepts, .