Senior Software Engineer (Full Stack) - Donor Intelligence

Virtuous provides software that helps nonprofits connect with and inspire their donors. The Senior Software Engineer (Full Stack) will build, scale, and maintain reliable web applications across the frontend and backend, while delivering new features and improving performance, scalability, and observability. The role also involves collaborating cross-functionally and contributing to architectural and technical decisions.

Responsibilities:

• Own the performance and scalability of our data layer as we onboard larger and more complex organizations — indexing, query optimization, read replicas, partitioning, and connection pooling — so onboarding and day-to-day usage stay fast and reliable even at enterprise scale
• Own our asynchronous and background-processing infrastructure (e.g., Celery), keeping it healthy, observable, and able to keep pace with growing data volume
• Design, build, and ship net-new, revenue-driving features across the full stack — from messaging and bulk-sending capabilities to richer reporting, analytics, and email experiences
• Help reinforce and extend our move to a server-side, HTMX-based frontend, improving both developer velocity and front-end reliability
• Design, build, and maintain scalable web applications used by nonprofit organizations around the world
• Collaborate closely with cross-functional teams to understand user needs and translate them into technical solutions
• Write clean, testable, and efficient code across the frontend and backend
• Contribute to architectural discussions and help drive technical decision-making across the platform
• Participate in code reviews, and help foster a culture of learning and improvement
• Own the reliability, performance, and observability of the systems you work on — instrument them well, set meaningful alerts, and treat production health as a first-class part of the work
• Provide thoughtful feedback on technology choices as we evaluate changes across our stack
• Support a culture of experimentation, iteration, and continuous delivery

Requirements:

• • 6+ years building modern web applications, including meaningful time spent running and scaling them in production
• • Proficiency in Python and frameworks like Django (or similar)
• • Hands-on experience with AI coding agents (Claude Code, Cursor, Copilot, etc.) as part of your regular development workflow
• • Experience operating cloud infrastructure (AWS, GCP, or Azure) and infrastructure-as-code tooling (e.g., Terraform)
• • Experience with JavaScript/TypeScript and frontend frameworks such as React or Vue
• • Strong understanding of relational databases such as PostgreSQL — not just querying them, but tuning them: indexing, query optimization, and strategies for scaling (read replicas, partitioning, connection pooling, etc.)
• • Experience integrating with RESTful and/or GraphQL APIs
• • Solid DevOps fundamentals: CI/CD pipelines, containerization, infrastructure monitoring, and hands-on experience scaling applications under real load
• • Comfort with observability tooling (metrics, logging, tracing, alerting) and a habit of using it to debug and prevent production issues
• • A love for building quality products that delight users and solve real problems
• • Strong communication skills and a team-first mindset
• • Familiarity with container orchestration (Kubernetes) or modern PaaS deployment
• • Experience defining and working against SLOs/SLIs, or otherwise formalizing reliability targets
• • Experience working in a SaaS or B2B product company
• • Familiarity with C# / .NET
• • Prior experience in the nonprofit tech space
• • Contributions to open-source projects or relevant technical blogs
• • Excitement about helping teams grow and mature their engineering practices