Senior Site Reliability Engineer I

Senior Site Reliability Engineer I

At Braze, we have found our people. We’re a genuinely approachable, exceptionally kind, and intensely passionate crew.

We seek to ignite that passion by setting high standards, championing teamwork, and creating work-life harmony as we collectively navigate rapid growth on a global scale while striving for greater equity and opportunity – inside and outside our organization.

To flourish here, you must be prepared to set a high bar for yourself and those around you. There is always a way to contribute: Acting with autonomy, having accountability and being open to new perspectives are essential to our continued success.

Our deep curiosity to learn and our eagerness to share diverse passions with others gives us balance and injects a one-of-a-kind vibrancy into our culture.

If you are driven to solve exhilarating challenges and have a bias toward action in the face of change, you will be empowered to make a real impact here, with a sharp and passionate team at your back. If Braze sounds like a place where you can thrive, we can’t wait to meet you.

Site Reliability Engineers (SREs) at Braze are responsible for keeping all internal-facing services and platforms running smoothly, ensuring consistent system reliability and maximum infrastructure uptime. SREs blend the roles of sensible system administrators and software engineers, applying sound engineering principles, operational discipline, and mature automation to our production environments. We specialize in distributed systems, operating at an extraordinary scale that includes serving over 3.3 billion monthly active users, collecting hundreds of billions of data points each month, and delivering billions of messages to our customers' end-users daily.

This Senior SRE role is specifically focused on supporting the Braze Ruby on Rails monolith and our growing fleet of Go API services. This position is embedded with product engineering teams who own APIs, taking their high-level feature requirements and helping translate them into reliable, highly scalable technology stacks. You will be responsible for the ingress fleets and API ingestion layers which serve as the main entry point for how the entire internet talks to Braze. Because of the highly operational and foundational nature of these ingress fleets, a deep, hands-on experience of both NGINX and Kubernetes is important.

What You’ll Do

• Lead NGINX & Kubernetes Ingress Infrastructure

• Architect and Operate Ingress Fleets: Configure, tune, and operate Braze's high-performance NGINX routing, proxying, and ingress controller layers that manage massive, real-time API ingestion traffic

• Own and Expand Scaling Routines: Own, expand, and tune automated scaling routines for our high-throughput, API-based services, leveraging RED metrics, Horizontal Pod Autoscalers, and customized scaling policies to ensure seamless traffic handling under extreme spikes

• Partner with Product Teams on Resilient Architectures

• Translate Product requirements into resilient, highly available, and scalable technology stacks

• Manage SLIs, SLOs, and Error Budgets: Establish meaningful SLIs and SLOs for API services, helping teams navigate error budgets to balance rapid feature deployment with stability

• Systems Design & Capacity Planning: Conduct in-depth systems design, bottleneck profiling, and capacity planning to ensure Braze meets its strict enterprise-grade SLAs

• Incident Response & On-Call Excellence

• Proactive On-Call Rotation: Participate in a PagerDuty on-call rotation, utilizing shifts not just to resolve structural alerts, but to update runbooks and proactively prevent incidents from recurring

• Blameless Retrospectives: Lead root-cause analysis and blameless retrospectives for availability and performance incidents, translating operational learnings into permanent system improvements

• Who You Are

• Required Experience & Skills

• 5+ years of experience as a DevOps, or Site Reliability Engineer in a high-scale production environment

• NGINX Mastery: Deep hands-on experience configuring, troubleshooting, and operating high-performance NGINX proxying, routing, and ingress controller layers under heavy traffic loads

• Kubernetes Orchestration: In-depth, hands-on proficiency with Kubernetes administration, cluster networking, container orchestration, cluster scheduling, and container deployment

• Linux Fundamentals: Excellent OS-level understanding of Linux/Unix internals, including disk I/O, memory allocation, TCP/IP networking, and process management

• Programming Proficiency: Strong programming/scripting skills—Ruby and/or Go preferred (or equivalent languages like Python, Java) to build custom automated tools, scripting, and platform frameworks

• Infrastructure as Code: Experience managing infrastructure using IaC technologies such as Terraform, Ansible, Chef, or similar frameworks

• Systems Thinking: Strong conceptual understanding of systems design—interfaces, boundaries, failure modes, edge cases, and cascading effects across distributed architectures

• Collaborative Mindset: Excellent documentation practices and a high comfort level collaborating asynchronously across remote-first, global engineering teams

• Preferred / Nice to Have

• Data Technologies: Familiarity with data-tier architectures in our stack, including Redis, Kafka, Postgres, or MongoDB

• Observability Systems: Experience using monitoring, profiling, and observability platforms (e.g., Prometheus, Grafana, Datadog or similar tools) to narrow in on incidents quickly

• Cloud Infrastructures: Practical experience deploying and managing infrastructure services in major cloud environments (AWS, GCP, Azure)

What We Offer

Braze benefits vary by location, and we encourage you to review our specific benefits offerings for each country. More details on benefits plans will be provided if you receive an offer of employment.

From offering comprehensive benefits to fostering hybrid ways of working, we've got you covered so you can prioritize work-life harmony. Braze offers benefits such as:

• Competitive compensation that may include equity
• Retirement and Employee Stock Purchase Plans
• Flexible paid time off
• Comprehensive benefit plans covering medical, dental, vision, life, and disability
• Family services that include fertility benefits and equal paid parental leave
• Professional development supported by formal career pathing, learning platforms, and a yearly learning stipend
• A curated in-office employee experience, designed to foster community, team connections, and innovation
• Opportunities to give back to your community, including an annual company-wide Volunteer Week and donation matching
• Employee Resource Groups that provide supportive communities within Braze
• Collaborative, transparent, and fun culture recognized as a Great Place to Work

About Braze

Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging. Braze helps brands deliver great customer experiences that drive value both for consumers and for their businesses. Built on a foundation of composable intelligence, BrazeAI allows marketers to combine and activate AI agents, models, and features at every touchpoint throughout the Braze Customer Engagement Platform for smarter, faster, and more meaningful customer engagement. From cross-channel messaging and journey orchestration to AI-powered decisioning and optimization, Braze enables companies to turn action into interaction through autonomous, 1:1 personalized experiences.

The company has repeatedly been recognized as a Leader in marketing technology by industry analysts, and was voted a Best of Marketing and Digital Advertising Software Product in 2025.

Braze was also named a Best Companies To Work For and other accolades. Braze is also proudly certified as a Great Place to Work in multiple countries.

The company is headquartered in New York with offices in multiple cities worldwide.

Braze is an Equal Opportunity Employer

At Braze, we strive to create equitable growth and opportunities inside and outside the organization.

Building meaningful connections is at the heart of everything we do, and that includes our recruiting practices. We're committed to offering all candidates a fair, accessible, and inclusive experience – regardless of age, color, disability, gender identity, marital status, maternity, national origin, pregnancy, race, religion, sex, sexual orientation, or status as a protected veteran. When applying and interviewing with Braze, you should feel comfortable showcasing what makes you you.

Our AI-Powered Braze Recruitment Process

At Braze, we’re committed to a fair and transparent candidate experience. We use AI-assisted tools at certain stages of our recruitment process.

This includes using AI to analyze the experience, skills and qualifications in your application materials to help with screening and prioritizing candidates. Such screening may amount to a form of solely automated decision-making. We also use AI for administrative support, like scheduling and recording interviews and summarizing interview notes. Our recruiting teams remain responsible for all hiring decisions and are involved throughout the process. If you have questions about how AI is used in our recruitment process, please contact us through the usual channels.