

Advantage Tech
Mid-Level Backend Engineer
⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is for a Mid-Level Backend Engineer with a contract length of "unknown," offering a pay rate of "unknown." Key skills required include 2+ years in API development, proficiency in C#, and basic AWS knowledge.
🌎 - Country
United States
💱 - Currency
$ USD
-
💰 - Day rate
Unknown
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🗓️ - Date
October 30, 2025
🕒 - Duration
Unknown
-
🏝️ - Location
Unknown
-
📄 - Contract
Unknown
-
🔒 - Security
Unknown
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📍 - Location detailed
Kansas City, MO
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🧠 - Skills detailed
#AWS (Amazon Web Services) #POSTMAN #AI (Artificial Intelligence) #Monitoring #C# #Programming #Snowflake #ML (Machine Learning) #Documentation #API (Application Programming Interface) #Integration Testing
Role description
Must-Have Technical Skills
• 2+ years API development experience
• Proficiency with C#
• Experience with database connections and ORM/query builders
• API testing (Postman, Jest, or similar)
• Basic AWS services knowledge
• Understanding of async programming patterns
Specific Deliverables:
• Implement individual API endpoints based on specifications
• Write comprehensive API tests and documentation
• Build error handling and validation logic
• Create API monitoring and health check endpoints
• Support integration testing with frontend team
Growth Opportunities:
• Learn Snowflake integration patterns
• Exposure to AI/ML API design
• Mentorship from senior backend developer
Must-Have Technical Skills
• 2+ years API development experience
• Proficiency with C#
• Experience with database connections and ORM/query builders
• API testing (Postman, Jest, or similar)
• Basic AWS services knowledge
• Understanding of async programming patterns
Specific Deliverables:
• Implement individual API endpoints based on specifications
• Write comprehensive API tests and documentation
• Build error handling and validation logic
• Create API monitoring and health check endpoints
• Support integration testing with frontend team
Growth Opportunities:
• Learn Snowflake integration patterns
• Exposure to AI/ML API design
• Mentorship from senior backend developer






