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# Software Engineer II

- **Company:** ONE STOP COLLECTIBLE CORP
- **Location:** Boston, United States
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Java (Programming Language), A/B Testing, Application Programming Interfaces (APIs), Amazon Web Services, Code Review, Relational Databases, PostgreSQL, Backend, Event Driven Architecture, Apache Kafka, Api Design, Restful APIs, Amazon Simple Queue Service (SQS)
- **Published:** September 4, 2026
- **Apply:** https://startup.jobs/software-engineer-ii-backend-growth-whoop-com-9020192

## About the Role

* Professional backend engineering experience in a production environment.
 * Proficiency in building APIs and working with relational databases (e.g., RESTful APIs, Postgres).
 * Experience with event-driven systems and asynchronous processing tools such as Kafka or SQS.
 * Skilled in writing comprehensive tests and clear documentation.
 * Demonstrated ability to work cross-functionally and communicate clearly with technical and non-technical stakeholders.
 * A growth mindset and eagerness to learn from feedback and new challenges.
 * Bonus: Experience with A/B testing frameworks or growth-focused engineering initiatives.

## Description

* Collaborate closely with product managers, designers, and fellow engineers to develop scalable and reliable backend services.
 * Build, maintain, and optimize APIs and infrastructure supporting our acquisition funnels, e-commerce experiences, and membership growth experiments.
 * Write well-tested, maintainable code using technologies such as Java, Kafka, Postgres, and AWS.
 * Break down feature requirements into actionable tasks, prioritize work, and consistently deliver on sprint commitments.
 * Contribute to backend architecture discussions and implementation of scalable, high-availability services that support millions of users.
 * Work with data scientists and analytics engineers to support experimentation and measure performance.
 * Participate in code reviews and collaborate on best practices with your engineering peers.


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- [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock)
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