Senior Software Engineer

Senior Software Engineer

Our organization is seeking a Senior Software Engineer for a newly formed team focused on modernizing complex legacy applications. This role is pivotal in transforming monolithic desktop applications into scalable, API-driven, microservices-based architectures. The ideal candidate will leverage AI-assisted development tools to reverse-engineer, refactor, and rebuild critical business logic while ensuring functional consistency and accuracy. This position requires a strong software engineering foundation, a curiosity for new technologies, and a mindset geared towards experimentation and rapid learning.

Location: Houston, Texas (Hybrid, potential for Remote)

Key Responsibilities

• Reverse-engineer and modernize legacy applications, with a focus on C#,.NET, C++, Java, and Fortran codebases.
• Design, develop, and maintain APIs to expose business and computational logic for modern web-based services.
• Develop comprehensive characterization and regression tests to validate modernized solutions against legacy functionality.
• Utilize and guide AI-powered development tools (e.g., Claude Code, Windsurf, Devin agents, AWS Kiro, GitHub Copilot) for code analysis, translation, documentation, and test generation.
• Contribute to the development of modernization frameworks, engineering standards, and reusable tooling.
• Extract embedded business logic from legacy UI components and restructure it within a services-oriented architecture.
• Mentor other engineers on best practices for software modernization and AI-assisted development.

Required Qualifications

• Approximately 10+ years of professional software engineering experience with a broad technical background.
• Strong proficiency in at least one object-oriented language such as C#,.NET, or Java, with experience in legacy desktop applications being preferred.
• Demonstrated experience in API development and moving from monolithic to microservices-based architectures.
• Experience creating automated test strategies to validate behavior-sensitive code changes.
• Comfort and hands-on experience using AI coding assistants and AI-driven development workflows in a production environment.
• A strong aptitude for learning and adapting to new languages and tools quickly.
• Experience with Agile software development methodologies.

Preferred Qualifications

• Experience reading, maintaining, or modernizing applications written in Fortran.
• Background working with scientific, engineering, numerical, or computational software where output accuracy is critical.
• Experience deploying applications in cloud and containerized environments such as AWS or Azure.
• Exposure to modern functional programming concepts.
• Previous experience in environments with limited documentation and evolving requirements.