Mirrai Careers

Senior Database Administrator

Braze

São Paulo Posted 13d ago
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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. WHAT YOU'LL DO The MongoDB Database Administrator (DBA) role is part of the Platform Engineering division within Infrastructure and is responsible for operating, scaling, and securing our internal MongoDB platform. This position supports a growing fleet of MongoDB clusters that back product-critical features, internal systems, and distributed services. This role partners closely with SREs, application engineers, and the platform security team to ensure MongoDB clusters are performant, resilient, compliant, and well-automated. Our clusters run on a modern Kubernetes-based infrastructure and are managed through GitOps and infrastructure-as-code practices. The DBA will help evolve and mature the platform, support backup and disaster recovery strategies, and assist engineers in designing efficient, durable MongoDB usage. Main responsibilities: 1) Cluster Operations & Reliability: * Operate production MongoDB clusters running in Kubernetes across multiple regions and clouds * Monitor cluster health, performance, replication, and storage usage, and proactively address degradation * Debug and resolve availability, latency, or data consistency issues in partnership with SREs * Participate in on-call rotations as a subject matter expert for MongoDB infrastructure 2) Automation & Tooling: * Automate routine operations such as database user management, cluster scaling, version upgrades, and backup restores * Maintain and improve internal tooling used for MongoDB observability, lifecycle management, and access control * Collaborate with Platform Engineering on Kubernetes-based deployment patterns and GitOps workflows 3) Backup, Restore & Disaster Recovery: * Implement and maintain point-in-time recovery, daily snapshots, and cross-region backup strategies * Regularly validate restores and participate in resilience exercises and disaster recovery planning * Partner with Security and Compliance teams to ensure backups meet RTO/RPO targets and audit requirements 4) Engineering Support & Best Practices: * Assist product engineering teams with schema design, indexing strategies, and performance tuning * Promote internal best practices for efficient queries, data modeling, and shard key design * Document operational runbooks, configuration standards, and performance baselines WHO YOU ARE Experience: * Relevant proven work experience managing MongoDB in production environments at scale * Strong working knowledge of replica sets, sharding, WiredTiger storage engine, oplogs, and journaling * Experience operating MongoDB in cloud or containerized environments (Kubernetes preferred) Skills: * Comfortable with automation and scripting in languages like Bash, Python, or Go * Proficient with MongoDB CLI tools, Atlas APIs, and backup/restore tooling (e.g., mongodump, mongorestore, mongosh, Ops Manager) * Familiar with observability stacks (e.g., Datadog, Prometheus, Grafana) and alerting strategies * Experience with GitOps workflows and infrastructure-as-code tools (Terraform, Helm, ArgoCD) is a plus Mindset: * Detail-oriented and reliability-focused: treats data loss and downtime as unacceptable * Strong communicator: able to document clearly, partner cross-functionally, and lead incident response * Growth-oriented: comfortable evolving systems, adopting new automation, and supporting other engineers Bonus qualifications: * Experience with other database platforms (e.g., PostgreSQL, MySQL, DynamoDB) * Familiarity with security best practices and compliance frameworks like SOX or SOC 2 * Contributions to open source MongoDB tooling or community forums #LI-Hybrid WHAT WE OFFER Braze benefits vary by location, and we encourage you to review our specific benefits offerings for each country at here. 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 Al-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 G2 “Best of Marketing and Digital Advertising Software Product” in 2025. Braze was also named a 2025 Best Companies To Work For by U.S. News and World Report, a 2025 America’s Greatest Companies by Newsweek, and a 2025 Fortune Best Workplace in Technology™ by Great Place To Work®, among other accolades. Braze is also proudly certified as a Great Place to Work® in the U.S., the UK, Australia, and Singapore. The company is headquartered in New York with offices in Austin, Berlin, Bucharest, Chicago, Dubai, Jakarta, London, Paris, San Francisco, São Paulo, Singapore, Seoul, Sydney and Tokyo. 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, we want you to feel comfortable showcasing what makes you you. We know that sometimes different circumstances can lead talented people to hesitate to apply for a role unless they meet 100% of the criteria. If this sounds familiar, we encourage you to apply, as we’d love to meet you OUR AI-POWERED BRAZE RECRUITMENT PROCESS At Braze, we’re committed to a fair and transparent candidate experience. To help our recruitment teams focus on what matters most — the person behind each application — 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. Depending on where you are located, you may have certain rights available to you in relation to Braze’s use of AI: * To opt out of AI-assisted review of your application, please click the “Learn More” at the end of the application form below and follow the instructions before submitting your application. Please note, if you apply to multiple roles at Braze, you will need to opt out in relation to each application. * To exercise other types of rights, such as rights to request further information about how AI is used in our recruitment process, to request a manual review of any decision made or to contest a decision, please contact us at [email protected].  Please contact us at [email protected] with any questions. To find out more about our hiring process, check out this page. Notice Regarding Automated Employment Decision Tool (NYC Local Law 144) Our use of AI during the application review process may include the use of automated employment decision tools. Pursuant to New York City Local Law 144, for roles based in New York City, or if you reside in New York City, you have the right to request an alternative selection process or a reasonable accommodation instead of AI-assisted review.  To opt out of AI-assisted review of your application, please click the “Learn More” button below and follow the instructions before submitting your application. Please note, if you apply to multiple roles at Braze, you will need to opt out in relation to each application. Please submit any other request to our Talent Acquisition team at [email protected] promptly after applying. Summaries of the most recent bias audit results for such tools are available here. Please see our Candidate Privacy Policy for more information on how Braze processes your personal information during the recruitment process and, if applicable based on your location, how you can exercise any privacy rights.

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