> Markdown version of [/jobs/ext/4628103-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/4628103-principal-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - **Company:** Eccalon, LLC - **Location:** Detroit, MI, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Microsoft Azure, Code Review, Continuous Integration, Distributed Systems, Performance Tuning, Software Architecture, Software Engineering, Software Systems, Information Technology, Legacy Systems, Microservices - **Published:** November 7, 2026 - **Apply:** https://www.juju.com/job/28_25303_aa896d3cbfd95a2578a6e01044436208 ## About the Role * 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 * 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 ## Description 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., 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., 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 * 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