Job Summary:
Momentive Software is a company that amplifies the impact of purpose-driven organizations globally. They are seeking a Senior Software Engineer to lead significant projects, mentor junior engineers, and develop scalable backend systems and APIs using the .NET ecosystem.
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:
Required:
• 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.
Preferred:
• 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.
Company:
Momentive Software is the provider of technology and revenue solutions for more than 13,000 associations and nonprofit organizations. Founded in 2017, the company is headquartered in Austin, USA, with a team of 1001-5000 employees. The company is currently Late Stage.