Principal Software Architect: Large-Scale Systems Leader

Eccalon, LLC; Detroit (MI); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Benefits package

Career advancement

Job summary

Eccalon, LLC is seeking a Principal Software Engineer to provide technical leadership across complex, large-scale software systems. This role drives architecture, influences technical strategy, and solves the organization’s most challenging engineering problems.

The Principal Software Engineer operates with broad scope and autonomy, partnering with engineering leadership, product, and business stakeholders to ensure systems are scalable, reliable, and aligned with long-term company goals.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).
• 8+ years of professional software engineering experience.
• Demonstrated impact designing and operating large‑scale production systems.
• Deep understanding of system design, distributed systems, and software architecture.
• Experience leading technical initiatives across teams.

Responsibilities

• Define and evolve system architectures across multiple teams or domains.
• Lead design of large-scale, distributed, and mission-critical systems.
• Establish and enforce technical standards, best practices, and design principles.
• Drive long-term technical vision and architectural consistency.
• Tackle the most complex technical challenges across the organization.
• Evaluate trade-offs across performance, reliability, scalability, security, and cost.
• Lead root-cause analysis of major system issues and outages.
• Guide modernization and refactoring of legacy systems.
• Influence technical direction across multiple teams and initiatives.
• Partner with product and leadership on roadmap feasibility and system constraints.
• Act as a technical advisor to senior engineers, managers, and executives.
• Review and guide high-risk or high-impact technical decisions.
• Mentor senior and mid-level engineers.
• Elevate engineering quality through design reviews and code reviews.
• Share knowledge through documentation, talks, and technical forums.
• Model a culture of ownership, quality, and technical rigor.

Skills

Technical leadership

Architecture & strategy

APIs & microservices

Distributed systems

Security practices

Education

Bachelor’s degree in CS/Engineering

Tools

AWS

Azure

GCP

CI/CD

Job description

Eccalon, LLC is seeking a Principal Software Engineer to provide technical leadership across complex, large-scale software systems. This role drives architecture, influences technical strategy, and solves the organization’s most challenging engineering problems.

The Principal Software Engineer operates with broad scope and autonomy, partnering with engineering leadership, product, and business stakeholders to ensure systems are scalable, reliable, and aligned with long-term company goals.