Senior Software Engineer, Fullstack

Postscript, a rapidly growing SMS marketing platform trusted by over 18,000 Shopify and Shopify Plus stores, is seeking a Senior Software Engineer to join their fully remote team. Founded in 2018 and backed by prestigious investors like Greylock and Y Combinator, Postscript has grown to over 250 employees while maintaining a 100% remote work culture.

As a Senior Software Engineer, you'll play a crucial role in enhancing their core platform and message orchestration systems. The position offers the opportunity to work with modern technologies including React/TypeScript, Python (Flask), Go, and AWS-managed architecture. You'll be responsible for architecting scalable solutions, mentoring team members, and making critical technical decisions that directly impact the business.

The ideal candidate brings 6+ years of professional software development experience, strong expertise in backend development, and a proven track record of building and maintaining applications on AWS. You'll need to be comfortable with both SQL and NoSQL databases, and have experience building modular, flexible architectures.

What makes this role particularly attractive is the combination of technical challenges, leadership opportunities, and the chance to shape a fast-growing product. The position offers a competitive salary range of $170,000-$200,000, plus significant equity, comprehensive benefits, and the flexibility of remote work. If you're passionate about building scalable systems and want to be part of a high-growth startup where your work directly impacts thousands of businesses, this role presents an excellent opportunity for career growth and technical leadership.