Principal Software Engineer at Smith Arnold Partners Principal Software Engineer at Smith Arnold Partners in Darien, Connecticut Posted in about 12 hours ago.

Type:

full-time If you're an experienced software engineer who wants to build things that actually move - fast, accurately, and at scale - this is a role worth considering. We're a well-established global tech organization that builds the software and systems behind some of the most advanced, high-speed electromechanical equipment in the industry. Our technology helps run the operations behind critical communications and logistics around the world.

Employee testimonials:

Great environment in the office and backed by a larger company providing a stable and exciting work environment. The entire Staff is always willing to help and create a great culture. Productive and Fun Place to Work! Best company I have EVER worked for... They have accommodated to me beyond expectations.

Title:

Principle Software Engineer Location:

Norwalk, CT Salary - $150,000 - $180,000 +Bonus Right now, we're looking for a Senior Principal Software Engineer to take a leading role in architecting and delivering the software that powers our next generation of machine control systems. This is a hands-on, senior-level position where you'll have real ownership, technical influence, and direct impact on the business.

Why This Role Stands Out:

High Visibility:

You won't be buried in code no one sees - this role is front and center across engineering, product, and executive teams.

Complex, Real-World Problems:

This isn't app development. You'll be building control software for high-speed, precision-driven systems that integrate mechanical, electrical, and software components. Stability +

Innovation:

Join a company that's been around for decades - but continues to evolve. The tech is serious, the teams are strong, and the roadmaps are ambitious.

Long-Term Career Growth:

This isn't a stepping-stone job. It's a long-term opportunity to lead, grow, and shape the future of how our machines performance

What You'll Do:

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

What You Bring:

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

Bonus Points:

Experience with motion or servo motor control Exposure to .NET, Java, or ASP.NET Background in SQL Server, Oracle, or web-based service architecture Knowledge of industrial automation or paper-handling/mailing systems