Principal Software Engineer- Onsite

Eccalon, LLC; Detroit (MI); On-site; USD 120,000 - 150,000; Full time

Job summary

Eccalon, LLC is seeking a Principal Software Engineer located in Detroit, MI. The role involves providing technical leadership across complex software systems, driving architectural decisions, and partnering with various stakeholders to ensure system reliability and scalability.

The ideal candidate should have over 8 years of software engineering experience and a strong background in designing large-scale production systems. This full-time position requires a bachelor's degree in a relevant field.

Qualifications

• 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.

Responsibilities

• Define and evolve system architectures across multiple teams or domains.
• Lead design of large-scale, distributed, and mission-critical systems.
• Tackle the most complex technical challenges across the organization.
• Mentor senior and mid-level engineers.

Skills

Java

Python

Go

JavaScript/TypeScript

C#

APIs

Microservices

Cloud platforms (AWS, Azure, GCP)

Education

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

Job description

Principal Software Engineer

Location: Detroit, MI – Onsite

Type: Full-time

Security Clearance: No clearance required, must be clearable.

Job Description

We are seeking a Principal Software Engineer to provide technical leadership across complex, large-scale software systems. This role is for a highly experienced engineer who 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 closely with engineering leadership, product, and business stakeholders to ensure systems are scalable, reliable, and aligned with long-term company goals.

Responsibilities

• Technical Leadership & Architecture
  • 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
• Complex Problem Solving
  • 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 outagesGuide modernization and refactoring of legacy systems
• Cross-Team Impact
  • 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
• Mentorship & Engineering Excellence
  • 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

Required 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
• Strong proficiency in one or more programming languages such as Java, Python, Go, JavaScript/TypeScript, C#, or similar
• Deep understanding of system design, distributed systems, and software architecture
• Experience leading technical initiatives across teams
• Experience building distributed, cloud-native, or high-availability systems
• Expertise with APIs, microservices, messaging, and data-intensive systems
• Experience with cloud platforms (AWS, Azure, or GCP)
• Strong understanding of CI/CD, observability, reliability, and security practices
• Background in performance optimization and scalability planning

Equal Employment Opportunity (EEO) Policy

Eccalon provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.