Software Engineer II (Backend, Platform)

About the Role

WHOOP is hiring a Software Engineer II focused on backend development to build and enhance systems that power our platform. This role directly contributes to delivering scalable and secure services supporting millions of members worldwide. Backend development expertise is the primary focus, with familiarity in cybersecurity concepts or cloud infrastructure considered a strong plus.

Depending on your background and interests, you may align with either the Product Security team (focused on secure-by-default guardrails, compliance, and data privacy) or the Application Infrastructure team (focused on scalability, reliability, and developer enablement).

Responsibilities

• Design, develop, and maintain robust, scalable backend systems powering WHOOP’s core infrastructure and member experience.
• Collaborate with product managers, data engineers, frontend developers, and other cross-functional partners to deliver features that enhance member engagement.
• Build and maintain APIs enabling seamless integration with frontend applications and third-party services.
• Ensure system reliability, scalability, and performance through effective testing, monitoring, and optimization.
• Implement secure coding practices and contribute to designing systems that safeguard member data.
• Stay current with backend technologies and contribute to improving engineering standards and best practices.

Qualifications

• 2–4 years of backend software development experience, ideally in languages like Java, Python, or C#.
• Experience designing and building RESTful APIs and microservices.
• Exposure to event-driven architecture (messaging/streaming tech such as Kafka, RabbitMQ).
• Familiarity with database design and management (e.g., PostgreSQL, MySQL, or NoSQL databases).
• Understanding of cloud infrastructure (AWS, GCP, or Azure).
• Familiarity with cybersecurity principles (data privacy, authentication, and authorization) is a plus.
• Strong problem-solving skills and ability to work in a fast-paced environment.
• Good communication skills and ability to collaborate across teams.

Bonus Qualifications

• Experience working with infrastructure as code and developer enablement platforms.
• Familiarity with containers and orchestration (e.g., Docker, Kubernetes).
• Background in cloud security or incident response.
• Exposure to building translation or localization platforms to support multi-language content delivery.
• Hands-on experience with observability tools (logging, monitoring, alerting) in production environments.

Requirements

• Must be prepared to work on-site out of the WHOOP office located in Boston, MA.