Software Engineer II (Full Stack, Growth)

WHOOP
Boston, MA
On-site

Who this role is best for

Candidates with full-stack web development experience and a background in growth-oriented product development will find this mid-level role at WHOOP engaging.

Best fit for

  • Mid-level engineers with experience in full-stack development and growth product work
    — “Software Engineer II (Full Stack, Growth)”
  • Individuals comfortable with rapid iteration and experimentation in product development
    — “rapid experimentation and thoughtful product development”
  • Candidates who can translate feature requirements into actionable, sprint-based deliverables
    — “Break down feature requirements into actionable tasks, prioritize work, and consistently deliver on sprint commitments.”

Things to consider

  • Relocation to Boston, MA may be necessary for this full-time, office-based role
    — “The successful candidate must be prepared to relocate if necessary to work out of the Boston, MA office.”
  • Compensation is based on individual qualifications and may not always align with the stated salary range
    — “individual pay is based on factors such as job-related skills, experience, performance”

How to stand out

  • Highlight experience with JavaScript/TypeScript and React in your technical profile
    — “Proficiency in web development using JavaScript/TypeScript, and React”
  • Showcase your ability to work across engineering, product, and design teams on your resume
    — “collaborate closely with Product, Design, and fellow engineers”
  • Emphasize your track record with RESTful API design and integration
    — “Experience designing and integrating RESTful APIs”
  • Demonstrate your skills in optimizing APIs and infrastructure for scalability and performance
    — “Build, maintain, and optimize APIs and infrastructure supporting our acquisition funnels”
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · TeamLevel · Mid

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • build and maintain growth initiatives
  • improve member acquisition and retention
Typical background
2–4 years of professional software engineering experience

Skills & requirements

Required

Web DevelopmentJavascript/typescriptReactRestful ApisPostgreSQL

Preferred

ExperimentationProduct Development

Stack & domain

JavaScriptTypeScriptReactRestful ApisPostgreSQLCommunicationProblem-solvingTeamworkWeb DevelopmentGrowth InitiativesE-commerce

About the role

Original posting from WHOOP via Ashby

At WHOOP, we’re on a mission to unlock human performance and healthspan. WHOOP empowers members to perform at a higher level through a deeper understanding of their bodies and daily lives.

The Growth team is responsible for accelerating member acquisition, activation, engagement, and retention through rapid experimentation and thoughtful product development. As a Software Engineer II (Full Stack), you will build and maintain the experiences and services that power WHOOP’s growth initiatives, working across the frontend and backend to deliver high-impact features that directly influence member and business outcomes. You’ll collaborate closely with Product, Design, and fellow engineers in a fast-paced, experiment-driven environment where iteration, measurement, and continuous improvement are core to how we build.

RESPONSIBILITIES

  • Work within a cross-functional team of product managers, designers, and fellow engineers to design, build, and ship full stack features that improve member acquisition, onboarding, engagement, and retention.
  • Develop and maintain frontend applications using modern web technologies
  • Build, maintain, and optimize APIs and infrastructure supporting our acquisition funnels, e-commerce experiences, and membership growth experiments.
  • Break down feature requirements into actionable tasks, prioritize work, and consistently deliver on sprint commitments.
  • Monitor application performance, troubleshoot production issues, and continuously improve the reliability, quality, and maintainability of the platform.
  • Participate in code reviews and collaborate on best practices with your engineering peers

QUALIFICATIONS

  • 2–4 years of professional software engineering experience building production web applications.
  • Proficiency in web development using JavaScript/TypeScript, and React
  • Experience designing and integrating RESTful APIs
  • Experience with relational databases such as PostgreSQL
  • Strong problem-solving skills with a passion for building high-quality, user-focused products in an iterative, data-driven environment.
  • Excellent communication and collaboration skills, with the ability to work effectively across engineering, product, and design teams.
  • A growth mindset and eagerness to learn from feedback and new challenges.

Learn more about our Software Org and how to be successful in your engineering career at WHOOP via our Career Framework https://engineering.prod.whoop.com/careerframework.

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 https://www.e-verify.gov/ 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.

Source: WHOOP careers (Ashby)

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