Senior Principal Real-Time Control Software Engineer

Smith Arnold Partners; Norwalk (CT); On-site; USD 150,000 - 180,000; Full time

Job summary

Smith Arnold Partners in Norwalk, CT seeks a Senior Principal Software Engineer to architect and deliver real-time control software for high-performance electromechanical systems. You will lead cross-functional teams and influence product roadmaps with hands-on ownership and strategic impact.

The role demands 10+ years in object-oriented design, deep C++ experience, and a background in mechatronics or similar environments. On-site collaboration and strong communication are essential.

Qualifications

• 10+ years of object-oriented software design and full-lifecycle development.
• Deep hands-on experience in C++ and real-time operating systems (RTX).
• Strong background in mechatronics or similar system-level environments.
• Ability to lead multidisciplinary teams and drive projects through ambiguity to delivery.
• Excellent communication skills with engineers and stakeholders.
• BS or MS in Computer Science or a related field.

Responsibilities

• Design and develop real-time control software in C++ for large-scale, high-performance electromechanical systems.
• Lead cross-functional efforts across software, hardware, systems, and manufacturing.
• Guide architecture and technical strategy for multiple products and platforms.
• Debug and optimize at the system level—from code to motion control to hardware integration.
• Play a key role in roadmap planning and technical decision-making.

Skills

Leadership

Communication

Cross-functional collaboration

Team leadership

Education

BS or MS in Computer Science or related field

Tools

C++

RTX RTOS

Mechatronics

SQL Server

.NET/Java/ASP.NET

Job description

Smith Arnold Partners in Norwalk, CT seeks a Senior Principal Software Engineer to architect and deliver real-time control software for high-performance electromechanical systems. You will lead cross-functional teams and influence product roadmaps with hands-on ownership and strategic impact.

The role demands 10+ years in object-oriented design, deep C++ experience, and a background in mechatronics or similar environments. On-site collaboration and strong communication are essential.