Principal Software Engineer, AI Email Applications

Step · Work From Home, US · FULL_TIME

Step is a verified Most Loved Workplace® (certified by Best Practice Institute).

As the Staff Software Engineer, AI Email Applications, you own the engineering layer that turns AI capability into a reliable product. You will shape the architecture across backend services, APIs, and client applications, while leading a small team of senior engineers. This is a hands-on leadership role. You stay close to the code, make critical architectural decisions, and ensure the system remains fast, reliable, and coherent as it scales. This position is 100% Remote.

Requirements:
- Artificial Intelligence (AI) experience required.
- Significant experience leading application or product engineering for complex systems.
- Strong hands-on background building and shipping backend systems used in production.
- Experience building AI-powered products or systems that integrate with modern Machine Learning (ML)/Large Language Model (LLM) capabilities.
- Strong technical judgment and the ability to make decisions with incomplete information.
- Comfortable working across backend and client platforms, with deep expertise in at least one.
- A strong bias toward ownership, shipping, and learning from real-world usage.
- High standards for code quality, reliability, and engineering fundamentals.

Benefits:
- Medical insurance
- Dental
- Vision
- Savings Plan Options
- PTO

This is a Most Loved Workplace® certified position. Learn more at https://certcheck.mostlovedworkplace.com/companies/step

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