Full-Stack Software Engineer (C#/.NET) – Onsite + 1 Remote Day

Sterling eMarketing; Sioux Falls, Northern (SD, KY); Hybrid; USD 90,000 - 115,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

Life insurance

Disability insurance

401(k) with employer match

Paid time off

Paid holidays

Employee discounts

Employee assistance program

Job summary

Sterling eMarketing in Sioux Falls, SD is seeking a mid-level Software Engineer to join our development team. You will work across the full stack, gain ownership of features, and help deliver production-ready software across databases, APIs, cloud services, and automation.

You should be curious, quick to learn, and comfortable collaborating with a small team. This onsite role includes one remote day per week and opportunities to apply AI-enabled development tools in real projects.

Qualifications

• 3+ years of professional software development experience.
• Strong C# and the .NET ecosystem knowledge.
• SQL and relational databases proficiency.
• Git or modern source-control experience.
• Experience with APIs and web applications.
• Ability to troubleshoot across multiple layers.
• Able to learn AI-assisted development tools.
• Onsite work in Sioux Falls, SD.

Responsibilities

• Design, develop, test, and maintain business applications using C# and related technologies.
• Write, troubleshoot, and optimize SQL queries.
• Build and maintain APIs and integrations.
• Troubleshoot issues across applications, databases, integrations, hosting environments, and production systems.
• Translate requirements and problems into practical software solutions.
• Participate in architecture discussions and code reviews.
• Support deployment and production activities.
• Take increasing ownership of projects.

Skills

C#

.NET

SQL

Git

APIs

AI tools

problem solving

independence

Tools

Azure

AWS

REST APIs

Docker

CI/CD

Job description

Sterling eMarketing in Sioux Falls, SD is seeking a mid-level Software Engineer to join our development team. You will work across the full stack, gain ownership of features, and help deliver production-ready software across databases, APIs, cloud services, and automation.

You should be curious, quick to learn, and comfortable collaborating with a small team. This onsite role includes one remote day per week and opportunities to apply AI-enabled development tools in real projects.