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IT - MH - .Net Developer- Intermediate

Montgomery, AL

Posted: 09/21/2026 Job Number: 29339003

Job Description

Title: .Net Developer with Mainframe developer experience
Duration: 6-12 months with extension possibility.
Location: Candidate will work 100% Onsite in Montgomery AL Main Office (No remote work allowed)
 
Position Summary
  • We are seeking a Mid-Level Microsoft .Net Developer with Mainframe development experience to support and enhance mission-critical enterprise applications in a complex hybrid environment that includes both legacy mainframe systems and modern Microsoft technologies.
  • This role will be responsible for development, maintenance, modernization, system integrations, reporting solutions, and production support activities.
  • The ideal candidate will possess strong mainframe and Microsoft .Net development experience, solid database skills, and the ability to bridge legacy systems with modern application architectures.
  • This individual will work closely with business analysts, project managers, database administrators, and cross-functional development teams to deliver scalable, secure, and maintainable solutions.
 
Essential 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 Qualifications
  • Bachelor's degree in Computer Science, Information Technology, Information Systems, or related field, or equivalent work 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.
 
Required Technical 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
 
Preferred Qualifications
  • 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.
 
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.
  • Strong customer service mindset and support orientation

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Nick Brown

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Discover exciting job opportunities in Montgomery, Alabama! Nestled in the heart of the South, Montgomery offers a unique blend of history, culture, and charm. From the historic Civil Rights landmarks like the Rosa Parks Museum and Dexter Parsonage Museum to the vibrant arts scene at the Montgomery Museum of Fine Arts and Alabama Shakespeare Festival, this region has something for everyone. Enjoy the delicious Southern cuisine, catch a game with the Montgomery Biscuits minor league baseball team, or explore the lush parks and scenic riverfront. Take the next step in your career journey and explore our job listings in Montgomery today!