Senior Software Engineer

Addison Group is seeking a Senior Software Engineer for a 12-month contract based in Tulsa, OK. This role is fully onsite and focuses on building and maintaining enterprise software, including applications, REST APIs, and enterprise integrations while supporting ongoing cloud migration and infrastructure modernization efforts.

The position is centered on practical development work with C# and .NET, plus collaboration across IT as you independently manage your assigned development activities. The contract may be extended based on business needs.

Job Details

• Location: Tulsa, OK (onsite)
• Job Type: Contract
• Duration: 12 months (potential extension)
• Compensation: USD 70 - 85 per hour

Responsibilities

• Develop and maintain applications using C#, .NET, and .NET Core
• Build REST APIs and integrations that connect enterprise applications and SaaS platforms
• Support cloud migration and application modernization initiatives
• Improve CI/CD pipelines and automated software deployments
• Assist with infrastructure automation using Terraform and Infrastructure as Code (IaC)
• Troubleshoot application issues and support hybrid cloud environments
• Collaborate with IT teams while managing development assignments independently

Requirements

• Strong experience in C# and .NET software development
• Experience building APIs and enterprise application integrations
• Familiarity with CI/CD pipelines and DevOps practices
• Microsoft Azure experience preferred; AWS experience also valuable
• Exposure to Terraform, Infrastructure as Code, or containerization is a plus
• Strong troubleshooting and problem-solving skills
• Ability to work independently and manage competing priorities

Technologies

• C#, .NET, .NET Core
• REST APIs
• CI/CD pipelines, DevOps
• Terraform, Infrastructure as Code (IaC)
• Microsoft Azure, AWS

Benefits

• Medical
• Dental
• Vision
• 401(k)

Additional Details

• Fully onsite in Tulsa, Oklahoma
• Background check and drug screening required; medical marijuana cards accepted
• No travel required
• Two-round interview process, with onsite interviews preferred
• Candidates should be available to interview and start quickly

Perks

• Competitive hourly compensation
• Hands-on experience with enterprise software, cloud computing, and API development
• Opportunity to contribute to DevOps automation and cloud modernization projects
• Potential for contract extension