Principal Software Engineer

Labelmaster•Chicago, IL

1h•$145,000 - $160,000•Hybrid

About The Position

We're seeking a Principal Software Engineer for DGIS, our SaaS platform supporting shipping processes for companies of all sizes. This role focuses heavily on architecture design, ensuring architectural compliance across teams, and performing code reviews to maintain code quality standards. While initial development work will be limited as you learn our systems, hands-on coding will increase significantly to 50-75% of your time once you're established.

Requirements

7-10 years of software development experience with architectural planning, design patterns, and cross-team technical leadership.
Strong object-oriented programming (C#)
Relational database design and optimization (SQL Server)
RESTful API design and development
Understanding of authentication/authorization patterns (JWT, OAuth)
Familiarity with GraphQL
Modern JavaScript framework experience (ReactJS/SolidJS preferred, or Vue, Angular, etc.)
Component-based architecture understanding
State management patterns
Cloud platform experience (Azure preferred, AWS/GCP acceptable)
CI/CD concepts and practices
Azure DevOps (or similar: GitHub, GitLab, Jenkins)
API design and integration patterns
Microservices or service-oriented architecture
Third-party API integration experience
Understanding of distributed systems
General knowledge of PCI-DSS requirements
Secure coding practices
Data protection principles
Experience with or strong interest in using AI coding assistants (Claude Code, Copilot, Cursor, etc.)
Ability to effectively prompt and collaborate with AI tools
Understanding of when to use AI assistance vs. manual development

Responsibilities

Learn and understand current DGIS architecture and technical ecosystem
Design integration solutions between DGIS and third-party systems
Architect full-stack solutions for new applications and features
Collaborate with team on technology decisions (with increasing autonomy over time)
Ensure architectural consistency and best practices across development teams
Perform code reviews across multiple development teams
Ensure compliance with architectural standards and coding best practices
Provide mentorship and technical guidance through review feedback
Identify technical debt and recommend refactoring strategies
Build new features and applications using AI-assisted development tools (e.g., Claude Code, GitHub Copilot)
Work with business teams to translate requirements into technical specifications
Maintain and refactor legacy .NET applications
Implement full-stack solutions from database to UI
Integrate third-party APIs (payment processors, shipping carriers, etc.)
Create technical documentation for API customers
Develop architectural whitepapers and framework documentation
Document integration patterns and best practices
Maintain architectural decision records (ADRs)