Lead .NET Engineer / SaaS / Hybrid / Chicago, IL

This Chicago-based SaaS company offers professional services automation tools tailored for firms in accounting, engineering, architecture, consulting, creative agencies, government contracting, IT services, and law. Its platform supports the full quote-to-cash process: scoping & quoting, time and expense tracking, resource management, project portfolio oversight, invoicing & payments, and analytics & financial reporting. They serve over 2,700 firms, tracking more than USD 8 billion in billable time annually and have been growing steadily.

They are looking for a Lead .NET Engineer to join their growing R&D team and play a pivotal role in modernizing and scaling our platform. Required Skills & Experience

• 7+ years of software engineering experience with a strong background in C# and .NET (Core or later).
• Expertise building front-end components with React and integrating with RESTful APIs.
• Proven success leading migrations from monolithic to microservices architectures in a production environment.
• Strong cloud experience with AWS, including services like ECS, Lambda, RDS, S3, and CloudWatch.
• Deep understanding of SQL databases, performance tuning, and data modeling.
• Experience with CI/CD pipelines, containerization (Docker), and infrastructure-as-code (Terraform or CloudFormation preferred).
• Excellent communication and leadership skills; ability to influence architecture decisions and mentor peers.

What You Will Be Doing Tech Breakdown:

• 20% maintenance
• 80% new development

Daily Responsibilities:

• Lead the design and development of new features and services for our cloud-based PSA platform.
• Architect and implement scalable solutions using C#, .NET, and React, with a focus on performance and maintainability.
• Spearhead their migration from a monolithic application to a microservices architecture, ensuring smooth transitions and minimal downtime.
• Collaborate closely with Product, QA, and DevOps teams to deliver high-impact solutions that improve customer experience and operational efficiency.
• Optimize database design and queries using SQL for high availability and scalability.
• Drive best practices in code quality, security, and cloud-native development.
• Mentor junior engineers and provide technical leadership across the team.

Office Location:

• Chicago Loop, IL
• Hybrid (2 days onsite // 3 days WFH)

The Offer

• $140-160K base

You will receive the following benefits:

• Medical coverage
• Dental coverage
• 401K
• PTO

Applicants must be currently authorized to work in the US on a full-time basis now and in the future.