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Join to apply for the Mid-Level .NET Developer role at Pioneering Evolution, LLC Join to apply for the Mid-Level .NET Developer role at Pioneering Evolution, LLC Get AI-powered advice on this job and more exclusive features. Position Description Pioneering Evolution is seeking a Mid-Level Software Developer to contribute to the development of a Marine Corps software platform's modernized .NET Core stack. The Mid-Level Developer will work closely with the Lead and Senior Developers, assisting in feature development, troubleshooting, and code optimization. This role requires a strong understanding of .NET development, API design, and software engineering best practices. This position requires a Secret Clearance and is based in the Washington D.C. metro area, with on-site requirements as needed. Position Description Pioneering Evolution is seeking a Mid-Level Software Developer to contribute to the development of a Marine Corps software platform's modernized .NET Core stack. The Mid-Level Developer will work closely with the Lead and Senior Developers, assisting in feature development, troubleshooting, and code optimization. This role requires a strong understanding of .NET development, API design, and software engineering best practices. This position requires a Secret Clearance and is based in the Washington D.C. metro area, with on-site requirements as needed. Responsibilities Develop, maintain, and enhance .NET Core applications, working within AWS Fargate-based containerized environments. Write efficient, maintainable, and well-documented C# code, implementing best practices in RESTful API development. Assist in software design and review technical specifications, contributing ideas for architectural improvements. Participate in code reviews and testing efforts, ensuring high-quality code delivery. Work with SQL databases (AWS RDS – SQL Server, PostgreSQL), writing queries and optimizing performance. Troubleshoot and resolve software defects and performance bottlenecks. Provide guidance to junior developers through collaborative problem-solving, peer code reviews, and technical discussions. Take ownership of feature implementations and actively participate in Agile development processes. Required Experience Bachelor’s Degree in Computer Science, Software Engineering, or related field. 3-5 years of experience in software development, with proficiency in .NET Core, C#, and ASP.NET Core. Experience working with RESTful APIs and microservices architecture. Strong SQL skills, with experience in AWS RDS (SQL Server, PostgreSQL, or MySQL). Experience with containerized applications (Docker, AWS Fargate preferred). Familiarity with Git and Git branching strategies. Strong problem-solving skills and willingness to learn. This position requires the ability to obtain and maintain a Secret U.S. security clearance; therefore, U.S. citizenship is required. Desired Experience Familiarity with AWS services (Lambda, API Gateway, SQS, SNS). Experience with DevOps practices and CI/CD tools (AWS CodePipeline, GitHub Actions, Jenkins). Knowledge of unit testing and Test-Driven Development (TDD). Experience working in Agile development environments. Who We Are And What We Offer In addition to competitive salaries and opportunities for professional development and advancement, our employees enjoy a comprehensive range of benefits. To keep pace with the changing needs of our employees, we continually evaluate benefit plans. Current benefits include: Paid time off 10 paid holidays Medical insurance Dental insurance Vision insurance Legal assistance Company-paid life insurance and AD&D Company-paid long term and short term disability insurance Tuition reimbursement 401(k) plan with company contribution Continuing Education Opportunities – We encourage our employees to grow in their areas of expertise and beyond. We believe in strengthening our team through education and we offer a variety of opportunities to pursue individual education, training and development goals. In addition to traditional classroom learning, new employees go through an internal proficiency program to ensure everyone has the skills they need to succeed. Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Engineering and Information Technology Industries Software Development Referrals increase your chances of interviewing at Pioneering Evolution, LLC by 2x Sign in to set job alerts for “Dotnet Developer” roles. 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