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Posted 6 days ago

Principal Software Engineer

5 day week (unlimited PTO)Remote · USA

HappyCo is a company where people can grow their careers and work with like minded people, with no egos or politics. HappyCo is values driven and offers a flexible, supportive culture. Join HappyCo and Make Work Happy !

About HappyCo

HappyCo builds modern property management software that helps owners and operators deliver better living experiences at scale. As we continue to evolve our platform, we are entering a period of significant architectural transformation—modernizing legacy systems while expanding into AI-orchestrated, event-driven workflows that will define the next generation of our product.

The Role

HappyCo is seeking a Principal Software Engineer to lead architectural design and technical strategy during a pivotal phase of platform evolution. This role will be responsible for creating clarity where complexity exists—assessing current systems, defining target architectures, and enabling teams to move faster through well-documented patterns and simplified software structures.

As HappyCo transitions from AI-augmented capabilities to agentic, AI-orchestrated, and event-driven workflows, this role will provide the architectural oversight and long-range planning required to evolve the platform without disrupting customers. You will be a key driver of technical debt reduction and platform modernization, ensuring that engineering teams—both internal and external—can deliver high-quality work efficiently and consistently.

In your first few months, you will develop a comprehensive view of HappyCo’s existing architecture and translate that understanding into a clear, actionable roadmap for change. Your work will directly improve engineering velocity by replacing fragmented or legacy approaches with shared, documented patterns that teams can confidently follow.