Senior Full-Stack Engineer: SQL & C# API Expert

Beacon Hill Staffing Group, LLC; Austin (TX); On-site; USD 110,000 - 160,000; Full time

Job summary

Beacon Hill Technologies is seeking an experienced developer in the P&C domain to lead development and support of a key core software system. You will work with business stakeholders to solve tickets and advance ongoing development and usage of the system.

The role requires strong SQL, C#/.NET, REST API design, and production ownership across databases, back-end APIs, and front-end interfaces. Collaboration with internal IT and external vendors is essential.

Qualifications

• 4+ years of SQL experience with queries and stored procedures
• Strong ability to write, tune, and troubleshoot complex production queries and data modeling
• 4+ years of full-stack software development, preferably in C#/.NET
• Ownership of production applications spanning database, backend API, and web frontend
• Experience designing and consuming REST APIs and system integrations
• Proficiency with Git-based source control and CI/CD pipelines including automated testing
• Familiarity with Jira and ideally ServiceNow ticketing
• Experience mentoring or coordinating with cross-functional teams
• Ability to analyze root causes and interface with internal IT and external vendors

Responsibilities

• Lead development and support for a core software system across departments
• Collaborate with business stakeholders and technical teams to resolve tickets
• Design and implement robust REST APIs and integrations, ensure security and reliability
• Maintain production systems, perform data migrations and UAT activities
• Contribute to change-management processes and release notes

Skills

SQL

Stored procedures

Complex queries

Relational data modeling

C# / .NET

Production-app ownership

REST APIs

Git-based source control

CI/CD pipelines

Jira

ServiceNow

AI prompts / AI coding assistants

Cloud/DevOps tools

Vendor coordination

Troubleshooting tickets

Education

Tools

Jira

ServiceNow

Azure DevOps / GitHub Actions / GitLab CI / Jenkins

Job description

Beacon Hill Technologies is seeking an experienced developer in the P&C domain to lead development and support of a key core software system. You will work with business stakeholders to solve tickets and advance ongoing development and usage of the system.

The role requires strong SQL, C#/.NET, REST API design, and production ownership across databases, back-end APIs, and front-end interfaces. Collaboration with internal IT and external vendors is essential.