Senior Software Architect & Technical Leader

Paychex Inc.; Detroit, Northern (MI, KY); Hybrid; USD 150,000 - 210,000; Full time

Job summary

Eccalon in Detroit is seeking a Principal Software Engineer to provide technical leadership across complex, large-scale systems. You will drive architecture, set technical strategy, and partner with engineering leadership, product, and business stakeholders to ensure scalable, reliable solutions aligned with long-term goals.

The role requires 8+ years of experience, strong in distributed systems and cloud platforms, with a track record of leading cross-team initiatives, code reviews, and

Qualifications

• 8+ years of professional software engineering experience.
• Strong design and operating of large-scale production systems.
• Experience with cloud platforms (AWS, Azure, or GCP) and CI/CD.
• Proven ability to lead technical initiatives across teams and mentor engineers.

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.
• Mentor engineers and review high-risk or high-impact technical decisions.

Skills

Java

Python

Go

JavaScript/TypeScript

C#

Education

Bachelor's degree in Computer Science, Engineering, or related field

Tools

AWS

Azure

GCP

CI/CD

Microservices

Job description

Eccalon in Detroit is seeking a Principal Software Engineer to provide technical leadership across complex, large-scale systems. You will drive architecture, set technical strategy, and partner with engineering leadership, product, and business stakeholders to ensure scalable, reliable solutions aligned with long-term goals.

The role requires 8+ years of experience, strong in distributed systems and cloud platforms, with a track record of leading cross-team initiatives, code reviews, and