Senior .NET Developer

Job ID: 113014
Location: Tulsa, Oklahoma  [Remote]
Category: App/Dev
Employment Type: Contract
Date Added: 07/09/2026
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Role Summary
This software development role involves designing, developing, testing, deploying, and maintaining custom applications within a collaborative team environment. The position requires a strong understanding of software development principles, including object-oriented design and multi-tier architecture, to deliver scalable, reliable, and maintainable solutions that meet business needs.

Responsibilities

  • Develop REST APIs using C# .NET 8 or later, adhering to best practices and coding standards
  • Participate in all phases of the software development lifecycle, including analysis, design, implementation, testing, and deployment
  • Collaborate with Business Analysts and team members to ensure technical requirements are accurately translated into functional software
  • Create and execute unit and system integration tests to validate application functionality and quality
  • Troubleshoot and resolve complex production issues, working closely with IT infrastructure and application teams
  • Monitor application performance in production environments and implement proactive solutions to ensure stability
  • Provide technical mentorship and support to team members, fostering a collaborative learning environment
  • Contribute to technical documentation, design specifications, and code reviews
  • Ensure application security, encryption, and performance optimization are integrated into development processes
  • Assist in identifying potential production risks and recommend preventive measures to mitigate them

Qualifications

  • Demonstrated expertise in REST API development using C# .NET 8 or later
  • Solid understanding of software development principles, including object-oriented design, N-Tier architecture, and web technologies
  • Experience with multi-threaded programming, caching, security, and encryption techniques
  • Working knowledge of middleware concepts such as messaging, EAI, SOA, and B2B/A2A integration
  • Familiarity with database management systems and infrastructure architectures
  • Experience working within Agile/SCRUM methodologies
  • Strong communication skills, with the ability to interact effectively with technical and non-technical stakeholders
  • Experience troubleshooting complex issues and collaborating across teams for resolution
  • Availability to work remotely with a reliable internet connection

Publishing Pay Range: $80.00 – $90.00 hourly
This is a fully remote role and can be performed from an approved location.

About GDH:
At GDH, we believe in the power of people and the importance of caring. Our culture statement, “We care about people,” isn’t just a tagline – it’s the core of everything we do. GDH is a premier staffing and talent solutions company dedicated to helping businesses find the best talent and assisting job seekers in finding their dream jobs.

Who We Are:
GDH, founded in 2001, has grown into a leader in providing staffing solutions across various industries. We specialize in IT across several sectors, connecting top talent with leading enterprises. As a Best of Staffing firm recognized for excellence in client, employee, talent, and women’s services, we pride ourselves on our commitment to quality and service.

GDH Benefits

GDH offers a range of employee benefits that are designed to promote well-being and help maintain a healthy work-life balance. These comprehensive benefits cover various aspects of an employee’s life and aim to enhance their overall experience with the company. Our health benefits include three medical insurance options with access to KISx Card, Zero Card, and HealthJoy concierge services. Other plan offerings include dental, vision, life, disability, supplemental insurance, and pet insurance plans. Enjoy additional perks like holiday pay, 401(k) plan, direct deposit, an employee referral program, work-life balance benefits, a Wellbeats membership, a discounted gym membership program, and more!  For more detailed information on benefits, please go to GDH’s website under the tab for candidates.

GDH provides equal employment opportunities (EEO) to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, gender, sex (including pregnancy), sexual orientation, gender identity, national origin, age, disability, genetic information, marital status, ancestry, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable federal, state, and local laws. Applicants with disabilities who require an accommodation or assistance in applying and/or for interviewing, please contact our HR Department.

Please visit our notice of collection for California applicants.

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