.Net Developer

.Net Developer

Location: Montgomery, AL

Onsite Flexibility: Onsite

Contract Details

• Position Type: Contract
• Contract Duration: 6-12 Months
• Pay Rate: $60.00-$61.00 / Hour (USD)
• Work Authorization: Applicants must be authorized to work for ANY employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time.

Job Summary

This role focuses on analyzing, interpreting, and modernizing legacy enterprise applications running on IBM mainframe platforms, while also developing and maintaining .NET-based solutions, reporting systems, and ETL workflows within a large-scale enterprise environment. The position supports a wide range of application development activities-from batch processing and data transformation to production support and application modernization initiatives.

Key Responsibilities

• Analyze, interpret, and decode legacy Easytrieve enterprise applications running on IBM mainframe platforms.
• Analyze business requirements and translate them into technical specifications and application solutions.
• Design, develop, test, and deploy application enhancements and defect fixes.
• Support batch processing, data transformation, and enterprise integration workflows.
• Develop and maintain reports, extracts, and data distribution processes.
• Create and support ETL solutions using SQL Server Integration Services (SSIS).
• Design, develop, and maintain reporting solutions using SQL Server Reporting Services (SSRS).
• Develop and maintain applications and supporting utilities using .NET technologies.
• Write, optimize, and troubleshoot complex SQL queries, stored procedures, views, and database objects.
• Monitor and resolve production support issues while ensuring system stability and data integrity.
• Participate in application modernization and legacy migration initiatives.
• Collaborate with business users to troubleshoot issues and identify process improvements.
• Create and maintain technical documentation, application specifications, and support procedures.
• Participate in code reviews and ensure compliance with organizational coding standards.
• Support testing efforts including unit, integration, regression, architecture, and user acceptance testing.

Required Skills

Mainframe Technologies

• JCL
• CICS
• ROSCOE or TSO
• Easytrieve/EasyPlus
• Batch Processing

Microsoft Technologies

• .NET Framework / .NET Core
• C#
• Entity Framework Core

Database & Reporting

• SQL Server
• T-SQL
• SSRS (SQL Server Reporting Services)
• SSIS (SQL Server Integration Services)
• Stored Procedures
• Database Performance Tuning

Development Tools

• Visual Studio
• Git
• Azure DevOps Server
• SQL Server Management Studio (SSMS)
• Markdown File for Documentation
• EDI Fabric SDK

Core Competencies

• Strong problem-solving and root-cause analysis abilities.
• Ability to work independently with minimal supervision.
• Effective collaboration across technical and business teams.
• Strong organizational and time management skills.
• Ability to manage multiple priorities and deadlines.
• Commitment to quality, accuracy, and continuous improvement.

Preferred Skills

• Experience with application modernization and migration of legacy systems.
• Experience using off-the-shelf technologies to manipulate data and report upon CMS data files (835 & 837).
• Experience parsing, generating, and troubleshooting ANSI ASC X12 HIPAA transaction sets, specifically 837 (claims submission) and 835 (Electronic Remittance Advice / ERA).
• Experience working with Alabama Medicaid electronic data specifications, companion guides, and proprietary state formats.
• Experience integrating mainframe applications with distributed platforms and APIs.
• Knowledge of ETL design and data transformation best practices.
• Familiarity with REST and SOAP web services.
• Experience with secure file transfer processes and data integration workflows.
• Experience with enterprise reporting and document generation solutions.
• Knowledge of Agile/Scrum methodologies.
• Experience with Microsoft Azure cloud services.
• Experience in healthcare, financial services, government, insurance, or other highly regulated industries.

Education Requirements

• Bachelor's degree in Computer Science, Information Technology, Information Systems, or related field, or equivalent work experience.

Required Experience

• Significant familiarity with the CMS Advise (835) and CMS 837 Health Care Claim file elements and standards.
• 3-7 years of professional software development experience.
• 3 years of experience in IBM Mainframe development environments.
• Experience supporting large-scale enterprise applications.
• Strong analytical, troubleshooting, and problem-solving skills.
• Excellent written and verbal communication skills.

Benefits

• Medical, Vision, and Dental Insurance Plans
• 401k Retirement Fund

About GTT

GTT is a minority-owned staffing firm and a subsidiary of Chenega Corporation, a Native American-owned company in Alaska. We highly value diverse and inclusive workplaces and support Fortune 500 organizations across banking, financial services, technology, life sciences, biotech, utilities, and retail sectors throughout the U.S. and Canada.

Job Number: 26-10895 Industry: Software Engineering

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