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Senior Mainframe Developer Jobs in Leander, TX (NOW HIRING)

Sr. Java Developer

Austin, TX · On-site

$56.75 - $72.25/hr

Prolim is hiring for a Java Developer for a leading client Location: Austin, TX Contract: Long term ... mainframe environments to Java/SQL environment

Java & Database Developer

Austin, TX · On-site

$50.50 - $65.50/hr

Competitive salary Location Austin, TX Experience Level Senior Level (15 or more years of ... mainframe environments to modern Java and SQL databases. Core Skills & Attributes * Strong ...

Programmer VI

Austin, TX · On-site

$6.5K - $7.5K/mo

  • Medical

  • Retirement

... of senior-level experience in computer programming plus two (2) years of experience overseeing the work of others in a mainframe environment. Knowledge of computer programming languages COBOL, JAVA ...

Programmer VI

Austin, TX · On-site

$6.5K - $7.5K/mo

  • Medical

  • Retirement

... of senior-level experience in computer programming plus two (2) years of experience overseeing the work of others in a mainframe environment. Knowledge of computer programming languages COBOL, JAVA ...

Senior Software Engineer/ AI

Austin, TX · On-site

$121K - $160K/yr

They are seeking a Senior AI Developer who will lead AI-focused workflows across the System ... e., Mainframe Cobol apps/DB2 to Java apps/SQL or MongoDB. • Hands-on experience with Large ...

Director, Architect Principal

Austin, TX · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

Influence developer productivity through modern tooling, CI/CD pipelines, and GitHub-based ... Familiarity with mainframe application architecture, SDLC, optimization, and modernization.

Texas Neos is Seeking a Sr. Cybersecurity Engineer/Architect - Splunk for a contract role for with ... mainframe system, to ensure appropriate data protection and risk mitigation throughout the system ...

Showing results 21-40

Senior Mainframe Developer information

See Leander, TX salary details

$36

$55

$63

How much do senior mainframe developer jobs pay per hour?

As of Aug 12, 2026, the average hourly pay for senior mainframe developer in Leander, TX is $55.09, according to ZipRecruiter salary data. Most workers in this role earn between $51.68 and $60.19 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a senior mainframe developer, and why are they important?

To thrive as a Senior Mainframe Developer, you need deep expertise in mainframe programming languages (like COBOL, JCL, and PL/I), systems analysis, and a strong understanding of legacy application architectures, typically supported by a degree in computer science or related experience. Familiarity with tools such as IBM z/OS, DB2, CICS, and version control systems is essential, along with relevant certifications like IBM Certified System Programmer. Excellent problem-solving, communication, and leadership skills help you collaborate effectively and mentor junior developers. These skills are crucial for maintaining mission-critical systems, ensuring reliability, and guiding modernization efforts in complex enterprise environments.

What are some common challenges faced by senior mainframe developers when integrating legacy systems with modern technologies?

Senior Mainframe Developers often encounter challenges when integrating legacy mainframe systems with newer technologies such as cloud platforms, APIs, or microservices. These challenges include ensuring data consistency, maintaining system security, and minimizing downtime during migrations. Collaboration with cross-functional teams, such as infrastructure engineers and application developers, is key to developing seamless integration solutions. Staying up-to-date with modernization tools and best practices can help address these complexities and support the organization's digital transformation goals.

What is a senior mainframe developer?

Senior Mainframe Developers are experienced professionals who design, develop, and maintain mainframe systems—large-scale computers used by organizations for critical applications, bulk data processing, and enterprise resource planning. They are proficient in languages like COBOL, JCL, and Assembler, and often work with databases and transaction processing systems. Their responsibilities include troubleshooting system issues, optimizing performance, mentoring junior developers, and ensuring the reliability and security of mainframe operations.
What are popular job titles related to Senior Mainframe Developer jobs in Leander, TX? For Senior Mainframe Developer jobs in Leander, TX, the most frequently searched job titles are:
What job categories do people searching Senior Mainframe Developer jobs in Leander, TX look for? The top searched job categories for Senior Mainframe Developer jobs in Leander, TX are:
What cities near Leander, TX are hiring for Senior Mainframe Developer jobs? Cities near Leander, TX with the most Senior Mainframe Developer job openings:
Infographic showing various Senior Mainframe Developer job openings in Leander, TX as of August 2026, with employment types broken down into 79% Full Time, 7% Part Time, and 14% Contract. Highlights an 79% Physical, 6% Hybrid, and 15% Remote job distribution, with an average salary of $114,580 per year, or $55.1 per hour.

$95 - $105/hr

Contractor

Posted 9 days ago


Job description

Java Developer (Software Developer III) – Austin, TX – $100–110/hr C2C | $95–105/hr W2
About the Role
Join a high-impact team as a senior Java Developer, leading enterprise-level projects for the State of Texas. This is an opportunity to drive innovation, mentor team members, and shape critical systems supporting statewide operations. You’ll work in a collaborative, Agile environment with a focus on large-scale application development, modernization, and performance optimization.
Responsibilities
- Oversee coding, testing, debugging, and documentation to meet rigorous technical and functional requirements
- Prepare and review flowcharts, diagrams, and end-user documentation to ensure smooth production runs
- Lead research, analysis, and planning for new projects, system modifications, and proposals
- Evaluate database schemas, write and execute SQL code, and optimize application performance
- Troubleshoot application issues by analyzing logs, system messages, and resource utilization
- Develop programming standards, procedures, and detailed technical documentation
- Implement backup and restore processes to maintain business continuity
- Coordinate, assign, and track project tasks across development teams
- Recommend and implement enhancements for system efficiency and performance
Required Skills and Experience
- 15+ years: Java development in large-scale, enterprise environments
- 10+ years: SQL database design, development, and performance tuning
- 8+ years: Application support and development within team settings
- 5+ years: Linux administration and scripting
Preferred Skills
- Atlassian tool suite proficiency, especially JIRA
- Agile methodology expertise
- Experience with State of Texas applications, specifically Texas Department of Public Safety systems
- Transitioning legacy mainframe applications to Java/SQL platforms
Benefits
- Competitive hourly rates with W2 and C2C options
- Opportunity to lead mission-critical projects impacting millions of Texans
- Collaborative, Agile team environment with seasoned professionals
- Career growth with exposure to modernization, leadership, and state-level systems
- Flexible work hours and a commitment to work-life balance
How to Apply
Ready to make an impact? Submit your updated resume and highlight your experience with enterprise Java development, SQL databases, and large-scale application support. Qualified candidates will be contacted for next steps.

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About Indotronix

Sourced by ZipRecruiter

In 1986, Indotronix established itself in the staffing space. 22 years later, Avani entered the scene, offering consulting and technology development. Finally, in 2016, the two joined forces to begin delivering talent across all areas, from Staffing to Consulting to unique platform development.

Industry

Recruiting and staffing services

Company size

1,001 - 5,000 Employees

Headquarters location

Rochester, NY, US