# Software Engineer II (Backend, AI Experiences)

**Company:** [WHOOP](https://hotfix.jobs/companies/whoop)
**Location:** Boston, MA
**Role:** Backend Engineering
**Experience:** 2+ years
**Skills:** Java, Kafka, AWS, Postgres, REST APIs, SQS
**Posted:** 2026-02-05

> Builds and maintains backend features for AI-driven health insights using Java, Kafka, AWS, and PostgreSQL. Requires 2-4 years backend experience with scalable systems and APIs.

## Job Description

## Responsibilities
- Collaborate with cross-functional teams including Product, Design, Analytics, and Data Science to gather requirements and deliver 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 for stability and reliability.

## Qualifications
- **2-4 years** of backend software development experience, ideally in **Java**.
- Familiarity with asynchronous processing systems (**Kafka**, **SQS**).
- Experience in backend development, 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 ability to work in a fast-paced, collaborative environment.
- Excellent communication skills and commitment to high-quality work.
- Proactive, collaborative team player eager to learn and adapt.

## Similar roles

- [Software Engineer, Upstart Bank](https://hotfix.jobs/jobs/6df7ca9a-9963-4258-b57c-a47062635582) - Upstart - Remote - $131k – $154k/yr
- [Software Engineer, Backend](https://hotfix.jobs/jobs/ec4cf948-90a5-4961-9fcf-88a494368bf0) - Mirage - New York, NY - $175k – $275k/yr
- [Backend Engineer, Moderation Enforcement](https://hotfix.jobs/jobs/1eb6679c-b2d3-4bb9-a6d6-cb03f0961b12) - Reddit - Remote - $164k – $230k/yr
- [Software Engineer](https://hotfix.jobs/jobs/772d0f5b-c6db-4121-8c59-192aa243cd0f) - TheGuarantors - New York, NY - $125k – $145k/yr
- [Junior Java Engineer](https://hotfix.jobs/jobs/50f8b469-11b1-4f8c-a935-1ea8b6938de7) - Wowza Media Systems - Remote

**Apply:** https://hotfix.jobs/jobs/2765b1f6-f3ab-420f-a4a0-d8c4f802f414
**Canonical:** https://hotfix.jobs/jobs/2765b1f6-f3ab-420f-a4a0-d8c4f802f414