Senior Backend Engineer

MrBeast • San Francisco, CA

15h • Hybrid

About The Position

Beast Industries is undertaking an AI-first engineering rebuild for a company that already has an audience of over 100 million people. This is a greenfield project, allowing for the design of backend systems from the ground up without legacy constraints. The role involves building services that power consumer products at a massive scale. The Senior Backend Engineer will design, build, and operate the backend systems for the MrBeast membership ecosystem, focusing on APIs, data models, and services that must remain fast and reliable as the audience grows. This includes building scalable, secure backend services and APIs capable of supporting consumer products for over 100 million users, owning system reliability with targets of 99.9%+ availability and low latency, and utilizing AI coding agents and modern development practices. AI will also be integrated into the systems being built where appropriate.

Requirements

• AI-Native: You're already using AI coding agents daily to move faster, and modern development practices are your baseline.
• Typically 7+ years in software engineering with heavy backend responsibility, designing and operating distributed systems in production.
• You've led production incidents through resolution, and you design for scale and reliability with the metrics to back it up.
• Pragmatic: You balance short-term delivery against long-term maintainability, and you take end-to-end ownership of systems and outcomes.
• Strong grasp of APIs, databases, system design, and cloud-native architectures.

Nice To Haves

• Event-driven architectures and messaging systems
• Operating services in public cloud
• Security and data-protection best practices
• Influencing technical direction across teams

Responsibilities

• Design and implement scalable, secure, maintainable backend services and APIs.
• Lead architecture and technical design discussions for complex initiatives.
• Own service performance, reliability, availability, and operational excellence end to end.
• Partner with product, frontend, data, and infrastructure teams to ship business outcomes.
• Drive incident response, root-cause analysis, and the long-term fixes that keep issues from recurring.
• Set and improve engineering standards and patterns, and address technical debt without stalling delivery.
• Review code and mentor engineers across the organization.
• Optimize database, service, and infrastructure performance.

Benefits

• Highly competitive equity package designed for a foundational hire.
• Competitive Salary
• Generous Medical (Blue Cross Blue Shield), Dental, Vision and company-paid Life Insurance
• Company contributions to employee Health Savings Accounts (HSA)
• 401k Plan with Safe Harbor company-matching
• Flexible vacation policy and paid company holidays
• Company-provided technology package
• Relocation assistance where applicable, including travel and company-provided housing for the first 90 days

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed