Zefr · 1 day ago
Staff Site Reliability Engineer
Marina del Rey, CA
Full-time
Hybrid
Senior Level, Lead/Staff
$190K/yr - $210K/yr
7+ years expZefr is the leading global technology company enabling responsible marketing in walled garden social environments. As a Site Reliability Engineer, you will apply your expertise in cloud infrastructure and core SRE concepts to deliver high-quality, reliable, and scalable solutions while collaborating with engineering and data science teams.
AdvertisingEnterprise SoftwareInternetMarketingVideoVideo Advertising
Responsibilities
Support and build systems and tools that enable other engineers to generate, deploy, and manage product features and models both quickly and safely
Deploy and support a multi-cloud, micro-service architecture, including infrastructure tailored for ML workloads, deployed via Github Actions, ArgoCD & Kubernetes
Collaborate with other engineers, particularly the Machine Learning team, to architect secure, resilient, scalable, and cost-efficient applications and ML systems/pipelines in AWS and GCP
Foster and push our DevOps culture and philosophy by encouraging continuous improvement across all engineering teams
Proactively maintain the health of production environments, including monitoring application performance and resource utilization
Participate in 24/7 on-call rotation, respond to system performance issues and outages
Debug code at the application and infrastructure level
Mature our CI/CD workflows and release process
Maintains a forward-thinking approach, actively researching and proposing new solutions
Propose and review Engineering Request for Comments (RFC) to drive Engineering architecture and practices
Qualification
Required
7+ year job history designing, managing, deploying, and supporting Cloud Infrastructure in a production environment using major public cloud providers (GCP experience a huge bonus)
Knowledge of GitOps including an understanding of modern CI/CD pipelines, techniques and technologies (Github Actions, GitLab, CircleCI, Argo CD, Flux)
Proficiency with IaC and configuration management tools (Terraform, Terragrunt, OpenTofu, Crossplane, Pulumi)
Production experience architecting, managing, deploying, and supporting container based workloads into Kubernetes clusters
Strong problem-solving experience, focusing on automation
Proven track record of building and scaling reliability practices, including SLO/SLI frameworks, incident management, and capacity planning
Heavy Production experience with observability platforms and practices (Prometheus, Grafana, Chronosphere, Datadog, OpenTelemetry); ability to design monitoring strategies for complex distributed systems
Knowledge of cloud networking (Mesh, NAT, Load Balancers, API Gateways, proxies, etc), cloud security, and cost optimization strategies
Strong written and verbal communication, organization, and documentation skills
Benefits
Flexible PTO
Medical, dental, and vision insurance with FSA options
Company-paid life insurance
Paid parental leave
401(k) with company match
Professional development opportunities
10+ paid holidays off
Summer Fridays (we leave early)
In-office, hybrid, and fully-remote work options available
In-office lunches and lots of free food
Optional in-person and virtual events (we like to celebrate!)
Company
Zefr
Zefr is a technology company that uses artificial intelligence to deliver digital advertising services.
201-500 employees
H1B Sponsorship
Zefr has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (5)
2024 (3)
2023 (4)
2022 (10)
2021 (9)
2020 (2)
Funding
Current Stage
Late StageTotal Funding
$65.06MKey Investors
IVPU.S. Venture PartnersMK Capital
2016-03-09Series E· $5M
2014-02-26Series D· $30M
2012-08-15Series C· $18.5M
Leadership Team
Richard Raddon
Co-Founder, Co-CEO
Zach James
Co-Founder & Co-CEO
Recent News
2025-12-16
2025-12-11
Company data provided by crunchbase