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Whoop

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

Whoop is hiring a Software Engineer II (Backend, AI Experiences & AI Platform) in Boston, United States. It pays $125k-$175k a year and Level rates it ; you can apply on Whoop.

Level's read on this job

  • Level rates this software engineer role Works on AI ●●●○: the daily work is on AI products, without building the model.
  • Tools and skills the posting cites include Java, Kafka and AWS.
  • Level classifies it as a mid-level role.
  • Level lists 125 other open roles at Whoop.

AI in this role

Build backend software features on top of generative AI capabilities for member-facing health outcomes.

JavaKafkaAWSPostgreSQLSqs
backendapi-designsystem-designgenerative-ai

At WHOOP, we're on a mission to unlock and inspire performance for life. WHOOP empowers users to perform at a higher level through a deeper understanding of their bodies and daily lives. Our wearable device tracks key physiological metrics such as heart rate variability, resting heart rate, and sleep quality to provide personalized insights into users' fitness, health, and recovery.

As a Backend Software Engineer II, you will build on WHOOP’s generative AI capabilities to develop and maintain exciting, member-facing features that drive meaningful health outcomes. You will play a vital role in delivering personalized insights across WHOOP and work alongside experienced engineers, designers, and product managers to help members better understand their health, optimize performance, and gain clarity throughout their WHOOP journey.

RESPONSIBILITIES:

  • Collaborate with cross-functional team 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 languages like 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 if necessary to work out of the Boston, MA office.

Interested in the role, but don’t meet every qualification? We encourage you to still apply! At WHOOP, we believe there is much more to a candidate than what is written on paper, and we value character as much as experience. As we continue to build a diverse and inclusive environment, we encourage anyone who is interested in this role to apply.

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.

The WHOOP compensation philosophy is designed to attract, motivate, and retain exceptional talent by offering competitive base salaries, meaningful equity, and consistent pay practices that reflect our mission and core values.

At WHOOP, we view total compensation as the combination of base salary, equity, and benefits, with equity serving as a key differentiator that aligns our employees with the long-term success of the company and allows every member of our corporate team to own part of WHOOP and share in the company’s long-term growth and success.

The U.S. base salary range for this full-time position is $125,000- $175,000. Salary ranges are determined by role, level, and location. Within each range, individual pay is based on factors such as job-related skills, experience, performance, and relevant education or training.

In addition to the base salary, the successful candidate will also receive benefits and a generous equity package.

These ranges may be modified in the future to reflect evolving market conditions and organizational needs. While most offers will typically fall toward the starting point of the range, total compensation will depend on the candidate’s specific qualifications, expertise, and alignment with the role’s requirements.

How we rate this

Software Engineer II (Backend, AI Experiences & AI Platform) at Whoop rates 65 out of 100 for how much of the daily work is AI. That makes it Works on AI (AI Level 3 of 4). The level is about AI in the job, not seniority.

Classification

Works on AI. The daily work is on AI products, without building the model.

  1. ●●●● Builds AI80 to 100
  2. ●●●○ Works on AI60 to 79
  3. ●●○○ Uses AI40 to 59
  4. ●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

BackendAPI DesignSystem DesignGenerative AIJavaKafkaAWSPostgreSQL

Also common in software engineer jobs at this level

Pay

This job starts at
$125k
Typical software engineer job
$167k

This posting starts 25% below the typical software engineer job. See software engineer jobs

Questions you could be asked

  1. Tell me about a project where backend was part of your work. What did you do?
  2. Tell me about a project where api design was part of your work. What did you do?
  3. Tell me about a project where system design was part of your work. What did you do?
  4. Tell me about a project where generative ai was part of your work. What did you do?
  5. Walk me through how you've used Java in your day-to-day work.

Adapt your resume

  • List these exact terms on your resume: Backend, API Design, System Design, Generative AI, and Java. An applicant tracking system matches the wording, not the idea.
  • Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
  • Show where AI is part of your daily process, not a one-off project. This role expects it to be a running habit.

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