Senior .NET Backend Architect: APIs & Microservices

Kforce Inc; Lakeland (FL); On-site; USD 105,000 - 145,000; Full time

Job summary

Kforce Inc. in Lakeland, FL, is seeking a Senior Backend .NET Engineer to design and implement backend architecture using .NET Framework/.NET 8 and C#. You will develop RESTful APIs, microservices, and data solutions across distributed systems.

Responsibilities include optimizing performance, collaborating with FE engineers, and mentoring junior developers while adhering to TDD and CI/CD practices. Strong SQL Server and PostgreSQL experience preferred.

Qualifications

• Bachelor's degree or equivalent work experience in CS/SE.
• 5+ years of backend development with .NET technologies.
• Strong proficiency in C#, .NET Core/.NET 8, and Web API.
• Expertise in SQL Server; PostgreSQL experience is a plus.
• Solid understanding of OOP, design patterns, and SOLID.
• Familiarity with Agile/Kanban methodologies.
• Excellent problem-solving and communication skills.

Responsibilities

• Design and implement backend architecture using .NET Framework/.NET 8 and C#.
• Develop and maintain RESTful APIs and microservices for web and mobile apps.
• Optimize performance, scalability, and security across distributed systems.
• Collaborate with front-end engineers to integrate server-side logic.
• Implement database solutions using SQL Server and PostgreSQL.
• Participate in code reviews, enforce best practices, and mentor juniors.
• Troubleshoot production issues and provide timely resolutions.
• Ensure security standards and data protection compliance.
• Contribute to CI/CD pipelines and automated deployments.
• Stay current with emerging .NET tech and cloud-native trends.
• Follow a TDD methodology.

Skills

C#

.NET Core/.NET 8

RESTful APIs

Microservices

SQL Server

PostgreSQL

Web API

TDD

Agile/Kanban

Education

Bachelor's degree in Computer Science, Software Engineering, or related field

Tools

PostgreSQL

SQL Server

Job description

Kforce Inc. in Lakeland, FL, is seeking a Senior Backend .NET Engineer to design and implement backend architecture using .NET Framework/.NET 8 and C#. You will develop RESTful APIs, microservices, and data solutions across distributed systems.

Responsibilities include optimizing performance, collaborating with FE engineers, and mentoring junior developers while adhering to TDD and CI/CD practices. Strong SQL Server and PostgreSQL experience preferred.