Software Engineer II (Backend, AI Experiences & AI Platform)

Mass Digital Health; Boston (MA); On-site; USD 125,000 - 175,000; Full time

Job summary

A health technology company is seeking a Backend Software Engineer II to enhance their generative AI capabilities. This role involves collaborating with product and design teams, leveraging technologies such as Java and Kafka, and ensuring the delivery of high-quality software. With 2-4 years of backend development experience preferred, candidates should be ready to work in the Boston, MA office. The salary range is between $125,000 and $175,000, including benefits and equity packages.

Qualifications

• 2-4 years of backend software development experience, ideally in Java.
• Familiarity with asynchronous processing systems.
• Experience in backend development and working with large-scale software systems.

Responsibilities

• Collaborate with cross-functional teams to gather technical requirements.
• Leverage Java, Kafka, AWS, and PostgreSQL to deliver software solutions.
• Consistently deliver high-quality code adhering to best practices.

Skills

Java

Kafka

AWS

PostgreSQL

RESTful API design

Job description

Overview

At WHOOP, we are on a mission to unlock human performance. WHOOP enables users to perform at a higher level through a deeper understanding of their bodies and daily lives, tracking metrics such as heart rate variability, resting heart rate, and sleep quality to provide personalized insights into fitness, health, and recovery.

Role: Backend Software Engineer II. You will build on our generative AI capabilities to develop and maintain member-facing features that drive meaningful health outcomes. You will collaborate with engineers, designers, and product managers to help members understand their health, optimize performance, and gain clarity throughout their WHOOP journey.

Note: This posting is for an immediate new hire. For fall 2026 graduates seeking entry-level roles, please review our New Grad Opportunities posting.

RESPONSIBILITIES:

• Collaborate with cross-functional teams including Product, Design, Analytics, and Data Science to gather technical requirements and deliver impactful infrastructure and tools

• Leverage Java, Kafka, AWS, and PostgreSQL to deliver scalable and reliable software solutions and features

• Consistently deliver high-quality code, adhering to best practices in software design and development

• Develop and maintain observability and monitoring systems to ensure the stability and reliability of deployed features

QUALIFICATIONS:

• 2-4 years of backend software development experience, ideally in Java

• Familiarity with asynchronous processing systems (Kafka, SQS)

• Experience in backend development, working on large-scale software systems and RESTful API design

• Experience in relational database design and development (PostgreSQL)

• Experience with scalable system design and performance optimization

• Strong independent problem-solving skills and the ability to work effectively in a fast-paced, collaborative environment

• Excellent communication skills and a commitment to delivering high-quality work

• A proactive, collaborative team player, eager to take on new challenges, continuously learn, and adapt in a fast-paced, data-informed environment

Learn more about our Software Org and how to be successful in your engineering career at WHOOP via our Career Framework.

This role is based in the WHOOP office located in Boston, MA. The successful candidate must be prepared to relocate to work out of the Boston, MA office.

WHOOP is an Equal Opportunity Employer and participates in E-verify to determine employment eligibility. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Salary and compensation: The U.S. base salary range for this full-time position is $125,000 - $175,000, with a benefits and equity package. Total compensation will depend on qualifications and role requirements.