Principal Software Engineer

About Prometheus Group:

Prometheus Group is a team of self-starters centered on being resourceful, accountable, and results focused. Career progress is based on merit and not years of service or attaining certifications. Our drive and dedication to creating great products for our global customers are at the heart of all we do! In joining Prometheus, you will become a part of the largest global provider of comprehensive enterprise asset management (EAM) software solutions that support the management life cycle for equipment maintenance and operations.

Role Overview:

As the Principal Backend Software Engineer for the ePAS product, you will serve as a technical leader, architect, developer, mentor and problem-solver. You will own the design and implementation of robust, high-performance backend services (Microsoft .NET, PostgreSQL) supporting both online and offline mobile workflows. You will also elevate the productivity of the team through strong mentoring, rigorous architecture, API excellence and discipline in delivery.

Why This Role Matters

As the Principal Backend Software Engineer for ePAS, you will shape the future of our web and mobile products used by customers worldwide. You’ll ensure the products are architected for speed, scale and reliability to ensure our customers have a world-class experience. If you thrive on solving complex challenges, mentoring others, and delivering impactful enterprise software—we’re excited to meet you!

Key Responsibilities:

• Architect and lead the design, development and maintenance of the backend platform for ePAS, using Microsoft .NET, PostgreSQL, SQLite (for offline mode) and DevExpress components.
• Define and enforce software architecture, layering, API design, branching/merge strategy, release delivery and CI/CD pipelines, ensuring scalability, maintainability and stability.
• Mentor and uplift junior and mid-level developers: review code, set best practices, lead technical discussions and elevate overall team output and quality.
• Troubleshoot complex performance, stability and customer-facing backend issues—own root cause analysis, resolution plans and prevention strategies.
• Drive the design and implementation of REST APIs (and other integration endpoints) that power mobile, desktop and server-side components—ensure they are secure, high-throughput and resilient.
• Manage and execute release delivery of backend components: define release plans, track dependencies, coordinate cross-team handoffs (mobile, product, QA), and ensure smooth deployment.
• Lead offline & online mode backend workflows for mobile devices: ensure reliable sync, conflict resolution, offline data storage (SQLite) and seamless transition to online mode.
• Champion source control and branching strategy best practices: define, communicate and enforce branching models, merge policies, trunk-based or feature-branch workflows, code-freeze practices.
• Influence product backlog and technical roadmap: collaborate with product management, UX and mobile teams to translate functional requirements into scalable backend solutions.
• Be the go-to expert for backend service design: evaluate and introduce new technologies, optimize database schemas, tune query performance, monitor production metrics and define improvements.

Required Qualifications & Skills:

• Bachelor’s or Master’s degree in Computer Science, Software Engineering or equivalent degree.
• 10 years of professional software engineering experience, with strong depth in backend development.
• Expert proficiency in Microsoft .NET (C#), PostgreSQL and SQLite; experience with DevExpress is a strong plus.
• Proven architecture and design expertise: you’ve led major system design decisions, defined layering, patterns, scalability and reliability.
• Demonstrated ability to troubleshoot and resolve high-severity performance/stability issues in production environments.
• Strong experience building and managing REST APIs; understanding of API versioning, throttling, security, documentation.
• Deep knowledge of branching strategy and source control workflows: Git, branching models (GitFlow, trunk-based), merge policies, release management.
• Experience with mobile backend integration supporting both offline and online modes (sync, local storage, conflict resolution).
• Experience mentoring and guiding other engineers: you have lifted team productivity, instituted best practices, and served as a technical mentor.
• Excellent communication skills: able to clearly articulate architecture, trade-offs, and mentor junior engineers; collaborate with product and mobile teams.
• Strong focus on delivery: you understand release processes, CI/CD pipelines, deployment orchestration, and dependencies across mobile/backend/web components.

Preferred Qualifications:

• Prior experience working in an enterprise software company with SaaS offerings.
• Familiarity with DevExpress UI components (for backend dashboards or admin tools).
• Experience with data synchronization for mobile/offline-first applications.
• Experience with containerization, micro-services or service-oriented architecture (SOA) in a .NET ecosystem.
• Proven track record in CI/CD, automated testing, and production monitoring metrics (e.g., error rates, latency, throughput).

Benefits Overview:

We offer an attractive benefits program to meet the diverse needs of our teammates:

• Employee base HSA plan, dental, life and short-term disability coverage 100% paid for by Prometheus Group
• HSA & FSA plan options
• Retirement Savings with Generous Company Match & Immediate Vesting
• Gym membership to O2 Fitness
• Casual dress attire
• Half-Day Fridays
• Generous Paid Time Off
• Company Outings, Trips & Activities

Prometheus Group is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.

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