AI-Driven Full-Stack Engineer — On-Site (St. Peters)

The Timberline Group; Saint Peters (MO); On-site; USD 95,000 - 140,000; Full time

Benefits offered by this job

Medical, Dental, Vision

401k with Employer Match

On-site recreation

Tuition discounts

Professional development

Job summary

The Timberline Group is seeking an experienced Full-Stack Developer to join its AI team in Saint Peters, Missouri. You will support, improve, and build internal applications used by claims, QA, and sales teams, including AI-enabled features with LLMs and AI agents.

You'll work with Angular front ends and ASP.NET Core APIs, troubleshoot production issues, and drive end-to-end features from development through deployment while keeping the system reliable and up-to-date.

Qualifications

• Strong full-stack software development experience in a production environment.
• Hands-on experience with C# and ASP.NET Core/.NET.
• Strong understanding of relational databases and SQL; SQL Server experience preferred.
• Experience supporting and maintaining applications after production launch.
• Ability to troubleshoot production issues, analyze existing code, and implement durable fixes.
• Comfortable working from evolving requirements and independently driving features from development through deployment.
• Experience with REST APIs and third-party system integrations.
• Familiarity with Docker, CI/CD pipelines, and GitHub Actions preferred.
• Experience with Active Directory, LDAP/LDAPS, or enterprise authentication preferred.
• Experience with Microsoft Fabric and/or Salesforce integrations preferred.
• Interest in building AI-enabled applications and working with LLMs or AI agents.
• Must be able to work on-site in St. Peters, MO 5 days/week.
• Bachelor's in Computer Science, Software Engineering, MIS, or equivalent experience.

Responsibilities

• Support and improve production applications, resolving user-reported issues, performance bottlenecks, and edge cases.
• Build new features end to end using Angular, TypeScript, C#, and ASP.NET Core
• Maintain and modernize applications through upgrades, dependency updates, vulnerability patching, and database migrations
• Diagnose and optimize slow queries and application performance
• Maintain integrations with SQL Server, Microsoft Fabric, Salesforce, and third-party vendor APIs
• Support and monitor LLM and AI-agent functionality embedded within production applications
• Containerize and deploy applications using Docker and GitHub Actions
• Support application authentication and access using Active Directory and LDAPS
• Work within existing codebases, understand established design decisions, and make thoughtful, maintainable changes
• Collaborate in a fast-moving environment where solutions are shipped, measured, and iterated based on real-world results

Skills

Full-stack development

C#

ASP.NET Core/.NET

REST APIs

SQL

Docker

CI/CD

GitHub Actions

AI-enabled applications

Education

Bachelor's degree in Computer Science or related field

Tools

SQL Server

Microsoft Fabric

Salesforce integrations

Job description

The Timberline Group is seeking an experienced Full-Stack Developer to join its AI team in Saint Peters, Missouri. You will support, improve, and build internal applications used by claims, QA, and sales teams, including AI-enabled features with LLMs and AI agents.

You'll work with Angular front ends and ASP.NET Core APIs, troubleshoot production issues, and drive end-to-end features from development through deployment while keeping the system reliable and up-to-date.