Backend Platform Engineer II - Scalable & Secure Systems

WHOOP; Boston (MA); On-site; USD 125,000 - 175,000; Full time

Job summary

WHOOP is hiring a Software Engineer II focused on backend development to build scalable, secure services powering our platform for millions of members worldwide. You will design and maintain robust backend systems, APIs, and data pipelines while collaborating with product managers, data engineers, and frontend teams.

Based in Boston, MA, this role emphasizes reliability, security, and performance. You’ll work in a fast-paced environment, apply best practices, and stay current with backend

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 but not required.
• Strong problem‑solving skills and ability to work in a fast‑paced environment.
• Good communication skills and ability to collaborate across teams.

Responsibilities

• Design, develop, and maintain robust, scalable backend systems that power 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 to enable 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 team engineering standards and best practices.

Skills

Backend development

RESTful APIs

Event-driven architecture

Cloud infrastructure

Cybersecurity awareness

Problem solving

Communication

Tools

Kafka

RabbitMQ

PostgreSQL

MySQL

NoSQL

AWS

GCP

Azure

Docker

Kubernetes

Job description

WHOOP is hiring a Software Engineer II focused on backend development to build scalable, secure services powering our platform for millions of members worldwide. You will design and maintain robust backend systems, APIs, and data pipelines while collaborating with product managers, data engineers, and frontend teams.

Based in Boston, MA, this role emphasizes reliability, security, and performance. You’ll work in a fast-paced environment, apply best practices, and stay current with backend