Senior Software Engineer, .NET

About this role

Summary
As a public and profitable company, we have ambitious plans to scale and enhance our products and services. We’re looking for Senior Software Engineers who can design and deliver high-quality solutions, collaborate effectively across teams, and contribute to meaningful improvements in our platform. Senior engineers at GeneDx focus on owning significant components, contributing to architectural discussions, and delivering reliable, well-tested software.


Job Responsibilities
As a Senior Software Engineer, you'll work on advancing our technology platform and building software products that make a meaningful impact. You will contribute to medium- to large-scale technical efforts, mentor junior engineers, collaborate with cross-functional partners, and deliver robust, scalable solutions aligned with our business objectives.


Day to day tasks may include:

• Dive into unfamiliar code to troubleshoot or add a new feature
• Participate in feature development of larger projects
• Technically lead smaller projects
• Participate in Support tasks, including off-hours and weekend on-call rotations.
• Propose technical designs, considering standard patterns, tradeoffs, and maintainability
• Provide thorough and meaningful code reviews
• Work with legacy as well as novel code bases
• Prototype, develop, and debug new features
• Implement and maintain DevOps cloud patterns

People Manager

• No

Education, Experience, And Skills

• Proficiency in at least 3 software languages, with a demonstrated ability to quickly learn new ones as needed.
• 6+ years of software engineering experience, including significant experience in:
• .NET Framework and .NET (Core/6+), C#
• SQL Server (schema design, performance tuning, migration strategies)
• Message queues, ideally MSMQ in production
• Demonstrated experience in modernizing legacy applications into cloud‑native microservices and event-driven architectures.
• Strong understanding of troubleshooting a...