Senior .NET Full-Stack Developer - Remote POS/IBM i

Intellisoft Technologies; Dallas (TX); Remote; USD 120,000 - 160,000; Full time

Job summary

Intellisoft Technologies is seeking a Senior Full Stack Developer to design, build, test, and maintain software across the full stack, including front-end interfaces and back-end services. You will work within a complex environment with POS systems, IBM i, and store-level workflows, contributing to both new development and critical operational support.

The role requires hands-on experience with C#/.NET or Python, SQL across IBM i DB2 and MS SQL Server, and RESTful API design.

Qualifications

• Ten+ years of full stack development in production environments
• Bachelor's degree in CS/IS/SE or equivalent experience
• Proficiency in C#/.NET and Python for server-side logic
• Strong SQL skills with MS SQL Server and IBM i DB2 queries
• Experience designing and consuming RESTful APIs and integrating with systems
• Familiarity with Git or TFS and CI/CD pipelines
• Knowledge of POS systems, IBM i (AS/400) environments, and store-level troubleshooting

Responsibilities

• Build and maintain RESTful APIs and back-end services integrating with POS and IBM i DB2 sources
• Develop front-end UIs using modern frameworks (React/Angular/Vue)
• Troubleshoot store-level incidents and analyze logs and configurations
• Perform SQL data extractions against IBM i DB2 and MS SQL Server
• Review deployment configurations, detect mismatches, and assist in deployments
• Collaborate with DevOps and cross-functional teams for issue resolution
• Maintain documentation and code quality through reviews and version control
• Own features end-to-end from design to deployment

Skills

Full stack

C#/.NET

Python

SQL

REST APIs

Git/TFS

UI framework concepts

Education

Bachelor's degree in CS/IS/SE

Tools

WinMerge

DBeaver

SSMS

Notepad++

PowerShell

Job description

Intellisoft Technologies is seeking a Senior Full Stack Developer to design, build, test, and maintain software across the full stack, including front-end interfaces and back-end services. You will work within a complex environment with POS systems, IBM i, and store-level workflows, contributing to both new development and critical operational support.

The role requires hands-on experience with C#/.NET or Python, SQL across IBM i DB2 and MS SQL Server, and RESTful API design.