Backend developer Jobs in Davenport, IA

Job#: 3021793

Job Description:

Overview

We are seeking a motivated .NET Developer with 2–5 years of hands-on experience building scalable, reliable, and high‑quality applications. The ideal candidate has strong proficiency in C#, .NET Core/, and modern development practices, along with a desire to contribute to a collaborative, fast‑paced engineering environment.

Key Responsibilities

• Design, develop, test, and maintain applications using C#, .NET Core, and related frameworks.
• Build and consume RESTful APIs and integrate with external systems.
• Collaborate with cross-functional teams—including product, QA, and DevOps—to define requirements and deliver high‑quality features.
• Write clean, maintainable, and well‑documented code following best practices.
• Troubleshoot, debug, and optimize application performance.
• Participate in code reviews and provide constructive feedback to peers.
• Work with databases such as SQL Server, writing queries, stored procedures, and performing basic data modeling.
• Assist in migrating legacy .NET applications to modern .NET Core frameworks (as applicable).
• Contribute to continuous improvement of processes, tooling, and engineering standards.

Required Qualifications

• 2–5 years of professional experience developing applications using C# and .NET/.
• Strong understanding of object‑oriented programming (OOP) and software design principles.
• Experience with .NET Core, Entity Framework/Core, and REST API development.
• Solid knowledge of SQL Server or equivalent relational databases.
• Familiarity with Git or other version control systems.
• Experience with front-end technologies such as HTML, CSS, JavaScript, or a modern framework (, React, Angular) is a plus.
• Ability to work in an Agile/Scrum environment.
• Strong communication, problem‑solving, and collaboration skills.

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click here for more details.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Apex team member can provide.