CommerceSong LLC

Software development consulting & technical leadership

CommerceSong LLC is a consulting practice focused on building, modernizing, and operating real-world software systems. Engagements range from hands-on engineering to senior technical leadership, helping teams design, deliver, and scale software responsibly.

What we do

CommerceSong supports organizations across the full software development lifecycle, including:

Software development

Full-stack web and cloud-native application development, from early architecture through production delivery.

Cloud & platform enablement

Designing and evolving modern cloud architectures, improving reliability, scalability, and operational maturity.

AI-enabled systems

Practical application of AI and automation in production systems, including data pipelines, analytics, and developer tooling.

Technical leadership & team guidance

Acting as a senior technical partner or fractional CTO—helping teams improve engineering practices, delivery processes, and decision-making.

Operational readiness & compliance

Supporting teams as they "grow up" operationally, including security posture, audit readiness, and compliance-aware system design.

How we work

Engagements are tailored to the needs of the organization and may include:

  • Hands-on implementation
  • Architecture and design guidance
  • Embedded leadership within engineering teams
  • Training and mentorship alongside delivery

The goal is always the same: build systems and teams that can succeed long after the engagement ends.

Principal Consultant

Doug Kerwin

Senior software engineer and technical leader specializing in production-grade systems, cloud architecture, and applied AI.

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