Senior C# Developer

REMOTE

Contract to hire

No C2C

Our client is seeking a Senior Full Stack Software Engineer to play a critical, hands-on leadership role in designing, building, and scaling software solutions across a multi-platform environment. This individual will act as a technical problem solver, architect, and mentor, helping drive development standards and decision-making across the team.

This is a high-impact role where you will balance hands-on development (50%) with technical leadership (50%), helping guide junior developers, streamline processes, and build scalable solutions.

Responsibilities

• Design, develop, and maintain full stack applications across multiple platforms
• Take ownership of technical challenges and proactively drive solutions
• Build and design APIs, system integrations, and scalable architectures
• Lead code reviews, pull requests, and enforce development best practices
• Mentor and coach junior staff, providing guidance and code review
• Help define technical roadmaps and break down work into actionable development tasks
• Collaborate with leadership to translate business needs into technical solutions
• Support both new feature development and ongoing maintenance of existing systems
• Contribute to modernizing legacy applications and migrating older systems
• Improve efficiency by reducing unnecessary process overhead and enabling quicker decision-making

Required Qualifications

• 5+ years of experience in full stack software development
• Strong proficiency in C#/.NET and relational databases (SQL)
• Experience building and consuming APIs and working across distributed systems
• Demonstrated ability to independently solve complex technical problems
• Experience contributing to architecture and system design decisions
• Ability to balance hands-on coding with leadership responsibilities
• Familiarity with containerization (Docker) and cloud environments
• Experience working with legacy systems and modernization efforts is a plus
• Exposure to AI tools, LLMs, or developer productivity tooling
• Prior experience mentoring or leading developers