Senior Software Engineer - AI

Key Responsibilities Lead implementation for large features or multi-sprint projects, driving backend execution and delivery using C# and the .NET platform. Design, build, and maintain RESTful and/or GraphQL APIs that are performant, secure, and well-documented. Decompose complex problems into milestones; translate acceptance criteria into robust, testable backend solutions. Mentor engineers through code reviews, pairing, and technical guidance; elevate team capabilities. Influence engineering practices (testing, design hygiene, operational readiness) to raise overall quality. Contribute to proofs-of-concept and prototypes to validate architectural approaches and reduce delivery risk. Collaborate effectively with stakeholders (product, QA, leads) throughout development and testing. Other duties as assigned. Qualifications Bachelor’s degree or equivalent practical experience. 6+ years of professional software engineering experience. Deep proficiency in C# and the .NET ecosystem (.NET 6+, ASP.NET Core). Proven experience designing and building RESTful APIs, including versioning, authentication, and documentation (e.g., Swagger/OpenAPI). Strong fundamentals in software design, debugging, and maintainable coding practices. Expertise working with relational data stores (e.g., SQL Server, PostgreSQL) and ORM frameworks (e.g., Entity Framework Core). Experience with cloud platforms, e.g. Azure or AWS, including deploying and operating .NET services. Demonstrated ability to lead technical delivery, mentor others, and handle ambiguity effectively. Track record of raising engineering quality (reliability, performance, testing, maintainability). Experience participating in estimation and sprint planning. Proficiency with version control systems (Git) and defect-tracking tools (e.g., Jira). Strong written and verbal communication skills. Detail-oriented, with strong analytical and problem-solving skills. Demonstrated growth mindset — self-driven learning and continuous improvement. Ability to work in a fast-paced, dynamic environment and balance multiple priorities. Nice to Have Experience using AI tools (e.g., GitHub Copilot, Claude) to accelerate software development. Familiarity with message brokers or event-driven architectures (e.g., Azure Service Bus, RabbitMQ, Kafka). Experience with microservices architecture and containerization (Docker, Kubernetes). Knowledge of gRPC or GraphQL API patterns. Background in API gateway configuration and management (e.g., Azure API Management, AWS API Gateway). Exposure to CI/CD pipelines and DevOps practices. Success Looks Like Delivers major backend initiatives with predictable execution and clear stakeholder communication. Builds APIs and services that are reliable, secure, and easy for other teams to consume. Raises team performance through mentorship and improved engineering practices. Resolves complex technical challenges efficiently and leaves systems healthier than before. About Momentive Software Momentive Software amplifies the impact of over 20,000 purpose-driven organizations in over 30 countries, with over $11billion raised and 55million members served to date. Our cloud‑based solutions focus on fundraising, learning, events, careers, volunteering, accounting, and association management. We are committed to building a diverse and inclusive team that values equity, belonging, and high performance. Equal Opportunity Employer Momentive Software actively embraces diversity and equal opportunity in a meaningful way. We are committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better our work will be, which is why we do not discriminate based on race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other status protected under federal, state, or local law. All persons hired will be required to verify identity, minimum age of 18, eligibility to work in the United States (without sponsorship), and to complete the required employment eligibility verification form upon hire. #J-18808-Ljbffr