Senior Software Engineer - Performance & Architecture

We’re seeking a Senior Software Engineer, Performance & Architecture who is passionate about building for scale and reliability. This role is ideal for engineers who think in systems, enjoy profiling and optimizing complex applications, and thrive on improving architectural design for speed, scalability, and maintainability. You will not be developing user-facing features — instead, your impact will be measured by how efficiently and reliably the platform performs. KPA’s Flex platform helps clients build comprehensive EHS programs that foster safe, productive workplaces. The platform powers real-time data collection, audits, incident management, training, and analytics — all delivered through a modern, web-based SaaS solution. If you’re an experienced software engineer with a deep understanding of distributed systems, performance tuning, and architecture best practices, this is the role for you.