Senior Software Engineer

Taxwell develops tax preparation software that helps everyday Americans find credits and deductions and maximize their refunds. The Senior Software Engineer will own complex features across tax filing systems, designing, implementing, testing, debugging, and maintaining frontend and backend applications while contributing to technical design and delivery decisions.

Responsibilities:

• Design, implement, and test frontend and backend features across our tax filing systems
• Debug and resolve application issues, improving performance and reliability
• Participate in design and code reviews, offering and receiving constructive feedback
• Collaborate with product, design, and QA to scope and deliver reliable features on time
• Write testable, production-quality code, leveraging AI tools when appropriate to accelerate development, explore options, or improve documentation
• Contribute to maintainability not just in your own work, but in how the system fits together overall
• Build a deep understanding of the tax filing domain, system architecture, and codebase in order to contribute thoughtfully, challenge assumptions, propose improvements, and grow your design instincts over time

Requirements:

• 5+ years of professional software engineering experience
• Strong experience developing applications with .NET
• Experience with Vue and/or Angular
• Exposure to C++ is helpful but not required
• This role includes maintenance of existing C++ applications, so candidates should be comfortable learning and working with C++ as needed
• Familiarity with Microsoft development tools and workflows such as Visual Studio, SQL Server, and Azure DevOps
• Experience building, debugging, and maintaining production systems
• Ability to independently break down complex problems, evaluate solutions, and drive work through completion
• Experience contributing to technical design discussions and code reviews
• Familiarity with AI-assisted development workflows such as GitHub Copilot, Cursor, Claude Code, or similar tools, and a willingness to continue developing that skill
• Experience with AWS (preferred)
• or other cloud platforms such as Azure or GCP
• Experience working in Agile or Scrum-based teams
• Experience in highly regulated domains such as tax, fintech, or healthcare