Sr. Software Engineer (Platform + AI)

At Bloomerang, we believe change happens on purpose. We champion the power and potential of nonprofits, igniting next-level impact with the team and technology built for purpose. Our powerful giving platform and stellar support enable tens of thousands of nonprofits to raise more, recruit more, and retain more, fueling maximum impact and raising the bar on what’s possible for the nonprofit sector. That's why, even as the nonprofit sector sees declines in giving, Bloomerang customers raise more year over year. We're also in the business of creating thriving employees. Join a mission-driven culture built on our core values of Simplify, Care and Act. We know our people are the key to our success, and we're proud to be home to some of the most innovative and skilled individuals in the workforce today. Come feel invigorated and unstoppable with us! The Role As a Sr. Software Engineer on the Platform Engineering team at Bloomerang, you build and own the AI harness our engineering organization runs on—the agentic tooling, orchestration, and evaluation infrastructure that turns frontier models into reliable, everyday engineering leverage in service of our mission to empower nonprofits. You go deep on what makes AI-driven development trustworthy at scale: agent workflows and guardrails, tool and model integrations, prompt and context pipelines, and evals. And you help us use the throughput that unlocks the way it should be used—not just shipping faster, but following through on delivery with real customer feedback, measurement, and iteration until the work makes a meaningful difference for nonprofits. In the near term you’ll also strengthen the systems the platform depends on—our authentication chain (centralized authentication and session management) as we drive toward a unified identity solution, primarily in C#/.NET. But your throughline is the harness: you make every engineer around you faster, and you raise the bar for how Bloomerang builds with AI. What You Will Do Build and own the agentic harness Bloomerang engineering runs on—agent workflows, tool and model integrations, orchestration, and the guardrails and evaluation infrastructure that keep AI-driven developm ent reliable and safe. Use the throughput AI-driven development unlocks to follow through on delivery—ship minimum viable increments, then gather real customer feedback, run A/B tests, measure what shipped, and iterate until it makes a meaningful difference for nonprofits.