Senior Backend Engineer

About the role

About Level is a learning technology company focused on enhancing student engagement and academic proficiency through interactive and engaging practice tools. We support teachers, schools, and parents by providing high-quality, standards-aligned practice that reinforces classroom learning. Our mission is to empower every individual to reach their full potential and lead meaningful lives. This role is part of a team dedicated to building and scaling our online platform, which powers all of Level's products.

Responsibilities

• Design and build robust, scalable backend systems, APIs, and microservices for our platform.
• Build highly available, robust, secure, sustainable, and maintainable tech.
• Drive analysis and improvement of services' quality and performance.
• Implement and advocate for best practices in testing, CI/CD, monitoring, and alerting.
• Own aspects of innovative feature and/or system development, considering usability, scalability, security, and performance.

Qualifications

• 5+ years of experience developing successful, highly-available online services.
• Experience building and deploying services into cloud environments and infrastructure as code.
• Strong experience with backend languages, primarily Kotlin.
• Experience implementing GitOps approach - managing infrastructure, deployments, CI/CD, live operations and documentation as a code.
• Solid understanding of relational and NoSQL databases (e.g., Redis, DynamoDB).
• Demonstrated ability to collaborate with cross-functional teams to deliver new features and improve existing ones with a strong focus on performance, reliability, and security.
• Knowledge of system design, distributed systems, caching strategies, and asynchronous processing.
• Experience in growth software/saas, edtech, or high-scale B2C applications such as streaming or e-commerce.

Nice to have

• Experience in industries with compliance requirements (e.g., finance, healthcare, education).
• Familiarity with player data models, real-time services, and telemetry/event tracking.
• Interest in tech, education, and child-safe technology development.