Senior Software Engineer C++

Senior Software Engineer C++ Job Location: US-FL-Winter Springs Job ID: 2026-3680 Overview We have an opening for a Senior Software Engineer C++, 8+ years experience, specializing in numerical algorithms, numerical modeling programming, and Windows desktop application development in the Winter Springs, FL office. The successful candidate will be part of our Software Development Team and will assist in maintaining, enhancing, and creating new features for our cloud-based SaaS platform and desktop application, working closely with our Software Engineers and the Water Resources Engineering Team. The candidate's initial primary focus will be learning and supporting the architecture of the existing codebase. Ultimately the candidate will be optimizing the existing system and adding new features. Streamline Technologies Inc. is a software development firm located in the Orlando area of Central Florida specializing in water resources engineering applications. Our philosophy and reputation are built on providing innovative software solutions such as the widely used hydrodynamic stormwater model, StormWise (formerly ICPR). Our stormwater and flood forecasting models include complex mathematical models that simulate the rainfall‑runoff process, drainage systems, flooding and flood forecasting, groundwater flow, water quality impacts, and green stormwater infrastructure. Our applications center around a geospatial graphical interface that utilizes aerial imagery, thematic‑based polygon map layers, and terrain surfaces. Responsibilities Architect and optimize high‑performance C++ simulations that model real‑world hydrology Help evolve our Windows desktop applications and cloud‑based SaaS offering Tackle hard problems: computational efficiency, numerical stability, large‑scale data Collaborate directly with water resource engineers to translate science into code Participate in code reviews, technical documentation, unit testing, and continuous improvement of engineering practices Qualifications Strong proficiency in modern C++ (17+) Proficiency in developing and maintaining Windows desktop applications (WinForms, MFC, Win32, Qt, or similar) Solid foundation in numerical methods, algorithms, and scientific or engineering computing Experience with Git, branching strategies, CI/CD pipelines, and modern software engineering best practices Practical experience with unit testing frameworks (GoogleTest, Catch2, or similar) and writing testable code Ability to communicate complex technical concepts clearly to cross‑functional and non‑technical stakeholders Experience with .NET C# Nice to Have Experience with parallel computing or GPU programming (CUDA, OpenCL, DirectX) Background in hydrologic modeling and water resource engineering Strong debugging skills using Visual Studio, VSC code, profilers, memory analyzers, and diagnostic tools Experience writing internal technical documentation or contributing to architecture roadmaps Experience A Bachelor's or Master's degree in Computer Science, Mathematics, Physics, a related field or demonstrated experience in building numerical modeling software, preferably in the field of fluid dynamics as it applies to stormwater modeling Minimum of 8 years of software development experience. Applicants must be currently authorized to work in the U.S. on a full‑time basis. We are unable to sponsor or take over sponsorship of employment visas Physical Demands The physical demands are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions. Work is performed in an office setting. Hand‑eye coordination is necessary to operate a computer, keyboard, and mouse. ... Equal Opportunity Employer Streamline is committed to providing equal employment opportunities to all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, or individuals with disability. Streamline is an Equal Opportunity Employer. #J-18808-Ljbffr WGI