Software Engineer II

Trans Core (TRN), a subsidiary of ST Engineering, is seeking a talented Software Engineer II to join our Software Development team in Round Rock, Texas.

The Software Engineer II will participate in software development team responsibilities focusing on .net projects with an exciting level of risk, complexity and visibility. As a member of a small and focused Solutions Development Team, you may be required to perform various duties within the software development lifecycle – analysis, designer, developer and unit tester. This is a unique opportunity to work in all areas of the software development lifecycle and have view and participation in the entire process.

• Design, develop, test, and enhance software systems that perform critical, real‑time processing of data collected from toll collection equipment, executing business logic and decision‑making based on incoming data.
• Build and maintain robust, scalable, multi‑threaded services and applications using C#, modern .NET frameworks, and various APIs.
• Participate in daily Scrum meetings, provide updates on task progress and collaborate closely with the team to ensure timely delivery of sprint goals.
• Contribute to design discussions for new toll system features and performance improvements to existing functionality.
• Assist in system installations and provide post deployment support for customer reported issues.
• Assist in trouble shooting customer reported bugs and update the program code base for bug resolutions.
• Provide experience‑based timelines and estimates for delivering high‑quality products based on requirements and specifications.
• Demonstrate hands‑on experience building and deploying containerized applications, contributing to modernized and portable deployment workflows.
• Document program code thoroughly and assist in preparing or updating user manuals and technical guides.

• Bachelor’s degree in computer science or a related Engineering field required, or equivalent experience.
• 3+ years professional software development experience building multi‑threaded applications in C# using .NET Core (now .NET), primarily on Linux based systems.
• Strong foundation in Object‑Oriented Architecture (OOA) and Service‑Oriented Architecture (SOA) principles, with the ability to design modular, maintainable, and scalable systems.
• Proven ability to design and implement scalable, secure and high‑performance APIs.
• Experience with database development using Microsoft SQL Server and MySQL.
• Working knowledge of message queues and asynchronous/event‑driven communication patterns. Practical experience developing, packaging, and deploying applications using Docker or similar containerization technologies.
• Demonstrated passion for software design, problem solving, and hands‑on development, with a commitment to delivering high‑quality, maintainable software solutions.
• Advanced experience developing applications using .NET Core (now .NET), and modern .NET technologies.
• Experience working in web and desktop/application environments is beneficial for understanding end‑to‑end system behavior, though primary responsibilities focus on backend services running in Linux‑based production environment understanding end‑to‑end system behavior, though primary responsibilities focus on backend services and APIs.
• Ability to build, deploy, and troubleshoot applications running in Linux‑based production environments.
• Hands‑on experience implementing CI/CD pipelines using tools such as Git Hub Actions, Azure Dev Ops, Jenkins, or Git Lab CI.
• Strong commitment to unit testing, code quality, and delivering maintainable, high‑reliability software.
• Excellent analytical and problem‑solving skills, especially in diagnosing technical challenges.

While performing the duties of this job, the employee is regularly required to talk or hear. The employee is frequently required to sit. The employee is occasionally required to stand, walk; use hands to finger, handle, or feel and reach with hands and arms. The employee must occasionally lift and/or move up to 10 pounds. While performing the duties of this job, the employee is occasionally exposed to fumes or airborne particles;

outside weather conditions and moving traffic. The noise level in the work environment is usually moderate.

Trans Core complies with federal and state disability laws and provides reasonable accommodation for employees with disabilities.