Principal Software Engineer

About the role

Principal Software Engineer

Location: Detroit, MI- Onsite

Type: Full-time

Security Clearance: No clearance required, must be clearable.

About Us

Eccalon provides global solutions to the most challenging technological issues of the 21st-century, and our evolving portfolio spans five major markets: Machine Learning, Cybersecurity, Aerospace & Defense, Material Sciences, Advance Manufacturing, Sports Science, Biotechnology, and Health & Life Sciences. Visit our website here.

Why Join Us?

Eccalon's Executives foster a supportive work environment allowing our teams to thrive, and have a fierce dedication to innovation, security, and people. Our culture is built on inclusion, teamwork, trust, and we are committed to offering career advancement opportunities to all employees. Encouraging a healthy and balanced life, we offer an extensive benefits package to support the wellness of our employees and their families. You will be joining a team of innovators, working with cutting edge technologies, supporting mission critical projects, and making an impact.

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 outages

Guide 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.