Sr. Application Developer

Targa Resources; Town of Texas (WI); On-site; USD 110,000 - 150,000; Full time

Job summary

Targa Resources is seeking a Senior Application Developer to design, develop, integrate, and support critical business applications for midstream operations. This is a hands-on role collaborating with technical leaders, stakeholders, and vendors to deliver secure, scalable solutions built with .NET, REST integrations, and SQL Server.

You will own the development of in-house apps, drive CI/CD in Azure DevOps, and apply secure coding practices while balancing new features with technical debt

Qualifications

• 10 years hands-on software development experience building and supporting enterprise applications.
• Bachelor’s degree in Computer Science, Information Systems, Engineering, or a related field, or equivalent professional experience.
• Strong development experience with modern .NET web applications (.NET 8, C#, ASP.NET Core).
• Experience designing, building, and consuming REST API integrations.
• Proficiency with Microsoft SQL Server, including T‑SQL, stored procedures, query tuning, and schema design.
• Proficiency with Azure DevOps source control, work item tracking, build, and release pipelines.
• Experience with development using object‑oriented design, SOLID principles, and common design patterns.
• Regular and reliable attendance.

Responsibilities

• Design and develop in-house business applications using modern .NET, Microsoft SQL Server, and related technologies.
• Develop, configure, and support third‑party integrations via REST APIs and vendor SDKs.
• Author solution and technical design documents.
• Follow architectural standards with the Architecture team.
• Conduct peer code reviews and enforce security and quality standards.
• Address production issues and perform root-cause analysis and fixes.
• Drive CI/CD improvements, including pipelines in Azure DevOps and Git workflows.
• Collaborate with project teams and stakeholders to refine requirements and translate them into technical solutions.
• Create and maintain deployment runbooks and knowledge-base articles for long-term sustainability.
• Apply secure development practices throughout the lifecycle.

Skills

Analytical skills

Communication skills

Problem solving

CI/CD practices

Education

Bachelor’s degree in CS or related field

Tools

.NET 8 / ASP.NET Core

C#

Microsoft SQL Server

REST APIs

Azure DevOps

Job description

POSITION SUMMARY:

The Senior Application Developer is a senior-level, technical role responsible for the design, development, integration, and ongoing support of business-critical applications supporting Targa’s midstream operations. This is a hands‑on software engineering role that partners with technical leaders on assigned projects, interacting with business stakeholders, internal development team members, and external vendors to deliver secure, scalable, and maintainable solutions.

The successful candidate will build and enhance modern .NET web applications, integrate enterprise systems using REST APIs, and work with data movement workflows using Microsoft SQL Server and SSIS. They will be expected to balance new feature development with technical debt reduction and continuous improvement.

JOB DUTIES AND KEY RESPONSIBILITIES:

• Design and develop in-house business applications using modern .NET, Microsoft SQL Server, and related Microsoft technologies.

• Develop, configure, and support third‑party application customizations and integrations using vendor SDKs and REST APIs.

• Author solution design and technical design documents.

• Work with the Architecture team and follow approved architectural standards.

• Perform peer code reviews and ensure adherence to coding, security, and quality standards.

• Handle escalated production issues, root‑cause analysis, and bug fixes across owned applications and integrations.

• Drive and participate in development process improvements, including CI/CD pipelines in Azure DevOps, branching strategies in Git, and release management practices.

• Partner with project teams, business stakeholders, and end users to refine requirements, plan new software applications and enhancements, and translate business needs into technical solutions.

• Create and maintain technical documentation, deployment runbooks, and knowledge‑base articles to support long‑term application sustainability.

• Apply secure development practices throughout the application lifecycle.

• Other duties as assigned.

MINIMUM ESSENTIAL QUALIFICATIONS:

• Bachelor’s degree in Computer Science, Information Systems, Engineering, or a related field, or equivalent professional experience.

• 10 years of hands‑on software development experience building and supporting enterprise applications.

• Strong development experience with modern .NET web applications (.NET 8, C#, ASP.NET Core).

• Strong analytical, troubleshooting, and written/verbal communication skills.

• Experience designing, building, and consuming REST API integrations.

• Proficiency with Microsoft SQL Server, including T‑SQL, stored procedures, query tuning, and schema design.

• Proficiency with Azure DevOps source control, work item tracking, build, and release pipelines.

• Experience with development using object‑oriented design, SOLID principles, and common design patterns.

• Regular and reliable attendance.

PREFERRED QUALIFICATIONS:

• Hands‑on experience with Boomi (or comparable iPaaS) for enterprise integrations.

• Prior experience delivering applications used by midstream operators such as gas measurement and commercial settlement systems.

• Strong knowledge of the Software Development Lifecycle (SDLC) with Agile delivery methodologies.

• Experience creating and maintaining unit tests, integration tests and automated testing.

• Experience working with at least one modern web framework (Blazor, Angular, or React).

• Openness to leveraging AI‑assisted development tools (e.g., GitHub Copilot) in accordance with company policies.

• Working knowledge of application security best practices (OWASP Top 10, secure coding, authentication/authorization patterns, secrets management).

• Experience developing RPA solutions using Selenium, UIPath, or similar Automation/RPA tools.

• Experience using Python and PowerShell for automation and operational support.

• Experience with SSIS for ETL development and data integration.

EQUAL EMPLOYMENT OPPORTUNITY:

Targa Resources provides equal employment opportunities based on merit, experience, and other work‑related criteria and without regard to race, color, ethnicity, religion, national origin, sex, age, pregnancy, disability, veteran status, or any other status protected by applicable law. We also strive to provide reasonable accommodation to employees’ beliefs and practices that do not conflict with Targa’s policies and applicable law. We value the unique contributions that every employee brings to their role with Targa.