Senior Principal Software Developer

About the position

At TA Instruments, we're looking for creative and innovative engineers who bring fresh ideas from all areas, including data processing, distributed computing, large-scale system design, networking and data storage, security, UI design and mobile. We encourage all our engineers to constantly add value to themselves and the business through learning and collaboration. We are seeking a Sr. Principal Software Engineer to lead the development and architecture of an innovative platform incorporating advanced AI capabilities. This is a high-impact role requiring deep technical expertise, strategic thinking, and leadership in building scalable, secure, and high-performance cloud-native applications.

Responsibilities

• Lead the architecture and design of a new SaaS platform with integrated AI/ML capabilities.
• Define and drive the technical roadmap, ensuring alignment with business goals and scalability requirements.
• Research, design, develop, and maintain applications, user interfaces, data analysis tools, and instrument control software for thermal analysis, rheological, and calorimetric instruments.
• Evaluate system specifications and translate system requirements into detailed technical designs.
• Provide architectural guidance and mentorship to engineering teams across the full development lifecycle.
• Collaborate with cross-functional teams to ensure seamless integration of AI models and services into the SaaS platform.
• Ensure software quality through code reviews, automated testing, and adherence to SOLID principles and secure coding practices.
• Contribute to the application architecture with a focus on scalability, maintainability, security, and performance.
• Support current programs, including performance tuning, troubleshooting, and enhancements.
• Provide technical support to internal and external users as needed.

Requirements

• Bachelor's Degree preferred, or equivalent combination of education, training, and experience.
• 12+ years of experience in software engineering, preferably in a regulated development environment.
• Proven experience designing and architecting SaaS solutions, including multi-tenant architecture, CI/CD pipelines, and cloud-native services.
• Strong experience with C#, .NET Core, and object-oriented design.
• Front-end development expertise using React or Angular with TypeScript.
• Proficiency in web technologies: HTML, CSS, REST APIs.
• Hands-on experience with AWS or Azure Cloud, Docker containers, and microservices.
• Familiarity with development tools such as JIRA, Visual Studio, VS Code, GitHub, YAML, Confluence, and Datadog.
• Experience integrating AI/ML models into production systems is a strong plus.
• Strong understanding of software security best practices and implementation.

Nice-to-haves

• Experience in analytical or medical device domains.
• Knowledge of TCP/IP sockets and RS232-serial communications.
• Experience with Azure DevOps, GitHub, BDD (Gherkin & SpecFlow), and continuous delivery pipelines.
• Ability to create roadmaps, manage risks, and communicate progress to stakeholders.
• Experience bridging technical and non-technical teams.
• Background in cross-functional product development involving hardware and software components.