Fulltime Mainframe Jobs in Georgia (NOW HIRING)

Salary: $76,611.79 - $101,510.62 Annually
Location : The David Hankerson Building Marietta, GA
Job Type: Full-Time
Job Number: 05170
Department: Information Technology Services
Opening Date: 08/31/2026
Closing Date: Continuous
Grade Code: 115
Position Information
We are seeking an Application Engineer to join our Public Safety ITS team. The ideal candidate will have experience in building high-quality .NET applications, working with relational databases, and collaborating with cross-functional teams. You'll be responsible for developing scalable, reliable, and maintainable applications, while continuing to improve your skills and growing development within our organization.
The candidate must take part in an after-hours on-call rotation with the Public Safety support team, providing basic desktop support to Public Safety personnel.
This position is not remote and requires consistent on-site attendance during the onboarding period. Eligibility for hybrid work arrangements will be considered upon the successful completion of the initial six-month period.
Essential Functions
Must be able to demonstrate proficiency in performance of the essential functions and learn, comprehend, and apply all County or departmental policies, practices and procedures necessary to function effectively in the position.
Identifies user and public business needs as they pertain to information technology systems; collects information from users; identifies alternative business solutions; develops programs and applications to address needs; defines input and output system requirements; prepares graphic and narrative representations of solutions; determines hardware/software requirements; performs cost-benefit, feasibility, and impact analysis; prepares testing plans and prepares program specifications.
Designs, develops, modifies, implements and maintains systems, software and infrastructure; writes code for new applications; ensures compliance with department design and coding standards; writes and modifies software using a variety of programming languages for mainframe and/or personal computers; designs user friendly interfaces and logic screen flow.
Performs post-implementation assessment and maintenance; runs tests and debugs software; consults with other application engineers and other information technology staff regarding the development of test plans and test criteria; creates and maintains procedures for production and test environments; analyzes production and test environments for problems; provides resolutions to issues and corrects programming or infrastructure configuration errors; communicates software test results with users; maintains data integrity and prepares program and infrastructure documentation according to department standards.
Plans and coordinates projects as the project manager and/or works with other project managers; may manage work groups or assist the project manager in managing work groups; may lead or coach others in program techniques and technology solutions; assigns developers to projects and monitors progress reports; determines cost estimates and target dates; prepares project progress reports and provides employee evaluation input to project managers on developer performance.
Supports complex applications with multiple web, application and database servers and complex data and communications networks; experience in SQL, SQL development, database reporting tools and developing database queries; knowledge of source control concepts and change management procedures.
Maintains an awareness of new applications, technologies, technical manuals and websites to increase knowledge of network operations and attends conferences, workshops and training sessions as appropriate.
Administers networks and develops network architecture according to communication and routing protocols; controls network access and security and diagnoses, monitors and analyzes network utilizing appropriate tools.
Performs other related duties as assigned.
Minimum Qualifications
Bachelor's degree from an accredited college or university with major coursework in Computer Science, Computer Engineering, Information Management, Management Information Systems or related field, supplemented by four years of experience in applications analysis, development, configuration, and support; experience with troubleshooting principles, methodologies, and issue resolution techniques; experience in developing training and technical documentation for end users; additional years of experience in programming and application support functions may substitute for a portion of the required education; or any equivalent combination of education, training, and experience which provides the requisite knowledge, skills, and abilities for this job.
Preferred Qualifications

• Experience designing, developing, and maintaining web applications using ASP.NET MVC ASP.NET Core or comparable frameworks
• Experience using Microsoft's Azure App Services, AWS Elastic, Apps Runner, or other cloud based technology platforms to create, deploy, and manage applications and services

Licenses and Certifications
Possession of IT Infrastructure Library certification is preferred.
Physical Abilities
Tasks require the ability to exert light physical effort in sedentary to light work, but which may involve some lifting, carrying, pushing and/or pulling of objects and materials of light weight (5-10 pounds). Tasks may involve extended periods of time at a keyboard or work station.
Sensory Requirements
Some tasks require the ability to communicate orally.
Environmental Factors
Essential functions are regularly performed without exposure to adverse environmental conditions.
EEO Statement
Cobb County Government is proud to be an equal-opportunity employer. We encourage applications from all qualified individuals, regardless of race, color, national origin, sex, religion, age, disability, or any other legally protected status.
Visit Cobb County's Employee Benefits page to learn more.
01
I understand that all answers to these supplemental questions must be verifiable in the 'Educational History' and 'Work History' sections of the application. Failure to provide sufficient information in these sections may result in my disqualification from the hiring process.

• Yes
• No

02
I have read the Minimum Qualifications required for this position and understand I must demonstrate those qualifications on the application in order to be considered for this position. Furthermore, a failure to adequately demonstrate all qualifications may result in my removal from consideration. Lastly, I understand indicating "see resume" on the application, may not be accepted in lieu of a completed application.

• Yes
• No

03
Are you legally eligible to work in the United States on an unlimited and unrestricted basis?

• Yes
• No

04
Do you now or in the future need an employer to sponsor you for employment authorization of visa status?

• Yes
• No

05
Educational Background (copies of any education documents listed on your application will be required upon hire): Mark the highest level of education you have completed.

• High School Diploma or GED
• Some College
• Associate Degree
• Bachelor's Degree
• Advanced Degree
• None of the above

06
If you have a college degree, what was your major area of study? Enter N/A if this does not apply.
07
How many years of experience do you have in applications analysis, development, configuration, and support; experience with troubleshooting principles, methodologies, and issue resolution techniques?

• No experience
• Less than four years of experience
• Four to six years of experience
• More than six years of experience

08
Please describe any experience you have in applications analysis, development, configuration, and support; experience with troubleshooting principles, methodologies, and issue resolution techniques Enter N/A if not applicable. "See resume" will not be accepted.
09
How many years of experience do you have developing and maintaining web applications using ASP.NET MVC, ASP.NET Core or similar frameworks or technologies?

• No experience
• Less than four years of experience
• Four to six years of experience
• More than six years of experience

10
Please describe any experience you have with developing and maintaining web applications using ASP.NET MVC, ASP.NET Core or similar frameworks or technologies? Enter N/A if not applicable. "See resume" will not be accepted.
11
How many years of experience do you have creating, deploying, and managing web applications in Azure app services, AWS Elastic Beanstalk, Apps Runner, Google App Engine, or comparable technologies?

• No experience
• Less than four years of experience
• Four to six years of experience
• More than six years of experience

12
Please describe your experience creating, deploying, and managing web applications in Azure app services, AWS Elastic Beanstalk, Apps Runner, Google App Engine, or comparable technologies? Enter N/A if not applicable. "See resume" will not be accepted.
13
How many years of hands-on experience do you have working with SQL, including writing queries, managing databases, and performing data analysis?

• No experience
• Less than four years of experience
• Four to six years of experience
• More than six years of experience

14
Please describe your experience working with SQL, including writing queries, managing databases, and performing data analysis? Enter N/A if not applicable. "See resume" will not be accepted.
15
This position requires an extensive criminal background check to gain access to secured court buildings throughout Cobb County Government and provide copies of any education documents listed on your application. Do you understand that your employment in this position is contingent upon successfully passing this background check?

• Yes
• No

Required Question