# Charles Soini > Senior Full-Stack Software Engineer | React, C#, MSSQL, Python | Business Automation, Data Visualization & Computer Vision Location: Fort Lauderdale, Florida, United States Profile: https://flows.cv/charlessoini I’m a Senior Software Engineer with over a decade of experience building internal tools, backend systems, and full-stack platforms that drive automation, visibility, and efficiency across engineering, manufacturing, and business operations. At Sintavia, I’ve led development of key features within company-wide applications that replaced legacy spreadsheets with real-time production tracking, labor analytics, and queue scheduling — helping streamline workflows across engineering and manufacturing. I built a CNN-based computer vision system that detects manufacturing defects with 95%+ real-world accuracy, and I’ve integrated MES, ERP, and additive manufacturing equipment using REST and OPC UA APIs to unlock true Industry 4.0 workflows. Earlier in my career, I managed agile software teams and IT operations, designed automations that reduced labor by 95%, and implemented systems to meet NIST, ITAR, and DoD compliance — including securing additive manufacturing equipment with STIGs, a first for the organization. I’m also an ACM-published contributor in applied machine learning and computer vision, and have hands-on experience with AR/VR development using Unity, HoloLens, and Oculus — blending immersive tech with real-world applications. My background combines deep technical skill with systems thinking and strategic execution. I thrive when solving complex problems, building tools that actually help people, and working across teams to make tech work better for everyone. I’m currently seeking engineering roles focused on backend systems, full-stack development, internal platforms, or applied computer vision/ML — where I can keep building impactful tools and continue leveling up my craft. ## Work Experience ### Senior Software Engineer @ Sintavia Jan 2020 – Present | Hollywood, FL Led development of core features in SAL, a custom internal platform (C#, React, Python, REST, OPC UA) that connects additive manufacturing equipment with enterprise systems (Teamcenter, Opcenter, Syspro) to support scheduling, project coordination, labor tracking, and compliance. Built SSO-enabled internal apps with custom permissions, replacing manual workflows and disconnected spreadsheets with scalable, real-time tools used across the organization. Designed APIs and data pipelines to integrate live printer data with MES/ERP, enabling automation and full production visibility. Developed a CNN-based computer vision tool (OpenCV, Inception v3) to detect defects with 95%+ accuracy, reducing scrap and failure rates. Created automated monitoring and alerting systems that flagged production anomalies, helping cut failures by over 50%. Automated backend processes and IT workflows, reducing manual labor by 95%+ and improving operational efficiency. Supported infrastructure and deployment via AWS, with testing built in Vitest (frontend) and xUnit (C# backend). Applied DISA STIGs across 95% of manufacturing equipment and contributed to company-wide implementation of NIST, ITAR, CUI, and DoD compliance standards. Authored documentation for onboarding, audits, and system architecture, and helped manage over 15 cross-functional platforms. Tech Stack: C#, .NET, React.js, Python, Java, SQL, REST, OPC UA, TensorFlow, OpenCV, AWS, Docker, Git, Vite, Vitest, xUnit Systems: SAL (custom platform), Teamcenter, Opcenter, Syspro, Active Directory, Jira Domains: Internal Tools, Automation, Systems Integration, Computer Vision, Compliance ### Lead Software Engineer @ Florida Polytechnic University Jan 2018 – Jan 2019 | Lakeland, Florida, United States ● Led development team of eleven engineers through a one year agile production lifecycle. ● Developed an algorithm for recognizing Huanglongbing infections with over 80% accuracy. ● Published an ACM research paper on using computer vision to recognize diseases, see “Citrus Greening Infection Detection (CiGID) by Computer Vision and Deep Learning”. ### System Software Engineer @ Structural Building Components, LLC Jan 2018 – Jan 2018 | Deerfield Beach, FL ● Restructured a Google Cloud-based data lake, resulting in a size reduction of over 60%. ● Automated data updates and refactored main codebase, reducing codebase size by over 95%. ● Streamlined cost and material estimating processes via automating standard processes. ### Software Development Consultant @ Unknown Jan 2015 – Jan 2018 | Florida, United States ● Consulted on over a dozen startup projects to prep them for market entry. ● Conducted programming, code reviews, and debugging for several startup projects. ● Provided testing and consultation for a top-selling VR game on Steam. ### Computer Science Tutor @ Unknown Jan 2011 – Jan 2018 | Florida, United States ● Tutored programmers on an individual and group basis on various coding languages as well as topics such as parallel computation, graphics engines, machine learning, game design, and computer vision. ● Taught five high school level courses of 30+ students each on programming and video game design. ## Education ### Bachelor's degree in Computer Science in Cyber Gaming Florida Polytechnic University ### ArcGIS Certification in Geographic Information Science and Cartography Broward College ## Contact & Social - LinkedIn: https://linkedin.com/in/charles-t-soini --- Source: https://flows.cv/charlessoini JSON Resume: https://flows.cv/charlessoini/resume.json Last updated: 2026-03-23