Lead Software Engineer II – .NET & Python

Best Egg is a market-leading, tech-enabled financial platform dedicated to helping people build financial confidence. The Lead Software Engineer II will design and deliver high-quality software solutions, mentor junior engineers, and collaborate with various teams to enhance engineering practices and system performance.

Responsibilities:

• Design, develop, and deliver high-quality software iteratively and incrementally
• Take ownership of key components and services—from hands-on coding to deployment and monitoring
• Participate in technical design discussions and contribute architectural insights, working with senior leaders to shape solutions
• Ensure software follows modern engineering practices, including clean code, testing, automation, and cloud-native patterns
• Support continuous improvement in code quality, reliability, performance, and developer experience
• Translate business requirements into clear technical tasks and help validate assumptions and approaches
• Build and enhance distributed, event-driven, and cloud-native solutions in AWS
• Apply cloud best practices—security, cost awareness, performance, and operational efficiency—under guidance of senior engineers
• Contribute to observability through metrics, logging, tracing, dashboards, and alerts
• Assist in performance tuning, resiliency improvements, and troubleshooting production issues to ensure system stability
• Mentor and support junior engineers through pairing, code reviews, and knowledge sharing
• Collaborate effectively with Product, Architecture, InfoSec, and DevOps to deliver well-aligned solutions
• Contribute to a culture of learning, curiosity, and continuous improvement within the engineering team
• Take ownership of core components or services
• Deliver high-quality, production-ready code and contribute meaningfully to team goals
• Build strong working relationships within the engineering and product teams
• Lead development of one or more important services with increasing autonomy
• Help improve system performance, scalability, and reliability
• Support and elevate engineering practices through mentorship, reviews, and process improvements

Requirements:

• 5–7 years of professional software engineering experience
• Strong backend development experience with .NET and Python
• Solid understanding of SQL, data modeling, and query optimization
• Working knowledge of AWS cloud architecture, services, and best practices
• Experience with modern databases (relational and NoSQL) such as DynamoDB, RDS, PostgreSQL, DocumentDB
• Familiarity with CI/CD pipelines, Docker, and container orchestration systems (ECS/EKS preferred)
• Experience with monitoring/observability tools such as CloudWatch or Datadog
• Ability to produce clear technical documentation and participate in design discussions
• Experience mentoring and supporting other engineers
• Strong communication skills with the ability to collaborate across teams
• Comfort working in Agile environments with iterative delivery and shared ownership
• Ability to bring clarity to complex situations and drive work forward with teammates