Senior Software Engineer

Kforce has a client in Bolingbrook, IL that is seeking a Senior Software Engineer. Responsibilities:

• Design, architect, develop, test, deploy, and maintain scalable web applications using C#, .NET, Blazor, and SQL Server
• Lead the technical design and implementation of complex features, ensuring solutions are secure, maintainable, and scalable
• Collaborate with business stakeholders, product owners, and cross-functional teams to define requirements and translate them into technical solutions
• Design, develop, and optimize REST and SOAP APIs and integrations with internal and external enterprise systems
• Drive application architecture decisions, technology evaluations, and adoption of engineering best practices
• Troubleshoot and resolve complex software defects, performance bottlenecks, security vulnerabilities, and production incidents
• Conduct code reviews, establish coding standards, and ensure adherence to software engineering best practices
• Mentor and guide junior engineers through technical coaching, design reviews, and knowledge sharing
• Participate in Agile planning, estimation, and execution while providing technical leadership throughout the software development lifecycle
• Create and maintain architecture diagrams, technical documentation, and operational procedures
• Continuously identify opportunities for application modernization, performance improvements, and process optimization
• 5+ years of professional software development experience using C# and .NET
• 5+ years of hands-on experience with Microsoft SQL Server, including database design, performance tuning, indexing strategies, stored procedures, and query optimization
• 1+ years of experience designing and developing modern web applications using Blazor, React, or similar front-end frameworks
• Extensive experience designing, developing, securing, and supporting RESTful APIs and distributed system integrations
• Strong proficiency with HTML, CSS, JavaScript, and modern front-end development practices
• Deep understanding of Object-Oriented Programming (OOP), design patterns, SOLID principles, secure coding practices, and software architecture
• Experience designing scalable, high-performance, and resilient enterprise applications
• Strong experience with Git, branching strategies, code review processes, and Agile/Scrum methodologies
• Proven ability to lead technical initiatives and influence architectural decisions across teams
• Experience troubleshooting complex production issues and driving root-cause analysis
• Excellent analytical, problem-solving, communication, and stakeholder management skills
• Ability to balance multiple initiatives and priorities in a fast-paced environment

• Microsoft Azure and/or AWS certifications are a plus
• Experience designing and building cloud-native applications using Microsoft Azure and/or AWS
• Strong knowledge of containerization technologies such as Docker and orchestration platforms such as Kubernetes
• Experience with Entity Framework, ORM frameworks, Azure DevOps, GitHub Actions, and modern CI/CD pipelines