.Net Developer - AI Proficient

Apex Systems; Southlake, Northern (TX, KY); Hybrid; USD 69,000 - 92,000; Part time

Job summary

Apex Systems in Southlake, TX (Hybrid) is seeking a .NET Developer with AI proficiency to join a fast-paced team developing investment lifecycle solutions. You will build and maintain web UI and REST APIs, work with AI-assisted patterns, and collaborate across product, architecture, and security teams.

The role requires 5+ years in application development, strong .NET/C#, and experience with SQL Server and REST integrations. This contract position offers hybrid work and competitive hourly pay.

Qualifications

• 5+ years of application development experience.
• 3–5 years of SQL Server experience; 1–3 years REST API integrations.
• Proficiency in .NET and C#; strong SQL concepts.

Responsibilities

• Design, develop, deploy, and maintain web UI and REST APIs.
• Troubleshoot and support applications in production.
• Identify opportunities to improve technology, processes and performance.
• Apply AI tools and engineering practices to improve velocity and code quality.
• Participate in design, code, AI-assisted code validation, and technical design reviews.
• Collaborate with product, architecture, security, and engineering partners on AI-enabled patterns.
• Provide hands-on development and mentoring for team members.
• Create project artifacts such as technical specifications and solution design documentation.

Skills

C#/.NET

REST APIs

SQL Server

AI patterns

UI development

Git/Jira

Education

BS in Computer Science

Tools

Angular

SSIS

AWS

GCP

Azure

Jira

Bamboo/Jenkins

Git

Job description

# .Net Developer - AI ProficientApply**Job#: 3055510****Job Description:**.Net Developer - AI Proficient**Location:** Southlake, Texas (Hybrid)**Alternate Location:** AustinRole OverviewThis role involves working with a team of .NET engineers to develop and improve investment lifecycle solutions. The position is for an individual who can work in a fast-paced environment and has practical knowledge of AI-assisted development. This role is responsible for application development within an enterprise architecture environment using C#, contributing to the design, development, testing, and implementation of technical solutions across a full stack of development tools and technologies.Key Responsibilities* Design, develop, deploy, and maintain web UI and REST APIs.* Troubleshoot and support applications in production.* Identify opportunities to improve technology, processes, and performance.* Apply approved AI tools and engineering practices to improve development velocity and code quality.* Participate in design, code, AI-assisted code validation, and technical design reviews.* Collaborate with product, architecture, security, and engineering partners on AI-enabled application patterns.* Provide hands-on development and mentoring for other team members.* Create project artifacts such as technical specifications, solution design documentation, and metrics reports.Required Qualifications**Experience:** A minimum of 5 years of experience in application development is required. This includes 3–5 years of experience with SQL Server and 1–3 years with REST API integrations. A proven history of debugging and troubleshooting full-stack applications is necessary.**Technical Skills:** Proficiency in building client/server-side applications using .NET and C# is required. Candidates must have a strong understanding of relational and SQL database concepts. Familiarity with AI application development patterns, such as prompt engineering and model/API integration, is needed. Experience with UI development using a single-page application framework and native cloud architecture is also required. Competency with Git, Jira, or similar platforms is expected.**Education:** A BS/BA in Computer Science or an equivalent discipline is preferred.Preferred Qualifications* Experience in financial technology domains, particularly with Angular.* Experience with SSIS or other data load/ETL tools.* Experience developing or integrating AI-enabled applications, automation capabilities, or intelligent workflows.* Familiarity with designing secure and scalable AI-enabled features.* Experience with enterprise system production support, DevOps, and release management.* Continuous integration experience with tools like Bamboo or Jenkins.* Experience in enterprise public cloud environments such as GCP, AWS, or Azure.* Knowledge of responsible AI practices, data privacy, and application security. *Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth 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 ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.**Everforth Apex uses a virtual recruiter as part of the application process. Click here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at https://www.apexsystems.com/privacy-policy**Everforth Apex Benefits Overview: Everforth 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. Everforth 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, Everforth 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. Everforth 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 Everforth Apex team member can provide.**Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.**If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [e-mail] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.**UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.***Employee Type:** Contract**Location:** Southlake, TX, US**Job Type:****Date Posted:** October 12, 2026**Pay Range:** $50 - $67 per hour