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Mainframe Developer Jobs in Orlando, FL (NOW HIRING)

ThreatLocker

Senior Kernel Software Developer

Orlando, FL · On-site

$50.75 - $67.25/hr

We are seeking a Windows Kernel Driver Engineer to build and maintain critical kernel-mode components for threat detection and prevention on Windows systems. Responsibilities : • Design and develop ...

ThreatLocker

Senior Kernel Software Developer

Orlando, FL · On-site

$51 - $67.25/hr

POSITION OVERVIEW We are seeking a Windows Kernel Driver Engineer with extensive experience in filter driver development and Windows system internals to join our cybersecurity product team. In this ...

ThreatLocker

Senior Kernel Software Developer

Orlando, FL · On-site

$51 - $67.25/hr

POSITION OVERVIEW We are seeking a Windows Kernel Driver Engineer with extensive experience in filter driver development and Windows system internals to join our cybersecurity product team. In this ...

Cloudspace

Freelance Software Developer

Orlando, FL · On-site

We're always looking for talented developers to add to our internal database of resumes. If you're experienced in any of the technologies listed below feel free to send us your resume. We'll keep it ...

Veritas Prime

JOB ID 12684: Software Developer

Orlando, FL · On-site

$101.96 - $104/hr

Software Developer Veritas Prime LLC, an IT consulting Firm, headquartered in Orlando, FL with branch officeslocated at Yarmouth, ME and Shawnee, KS -has multiple openings at Shawnee, KSfor JOB ID ...

Apex Systems

Senior C# Developer

Orlando, FL · On-site

$55 - $70/hr

NET Developer to join a team focused on modernizing legacy restaurant back-office and supply chain applications. This role involves transforming existing systems into scalable solutions and ...

New

Orange County Schools

OCCUPATIONAL THERAPIST

Orlando, FL · On-site

$37.50 - $49.50/hr

Professional judgment and clinical knowledge are used to develop individualized programming based ... Telephone, Computer, (Personal Computer and Mainframe), Automobile, Copier PHYSICAL REQUIREMENTS:

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All JobsMainframe Developer JobsMainframe Developer Jobs in Orlando, FL

Mainframe Developer information

See Orlando, FL salary details

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$49

$67

How much do mainframe developer jobs pay per hour?

As of Aug 12, 2026, the average hourly pay for mainframe developer in Orlando, FL is $49.83, according to ZipRecruiter salary data. Most workers in this role earn between $43.99 and $56.54 per hour, depending on experience, location, and employer.

Is a mainframe developer hard to learn?

Mainframe developers typically need to learn specialized programming languages like COBOL and understand mainframe environments, which can have a steep learning curve for beginners. However, with prior programming experience and training, acquiring the necessary skills is achievable, and many employers offer on-the-job training or certification programs.

What is the difference between Mainframe Developer vs Mainframe Analyst?

AspectMainframe DeveloperMainframe Analyst
Primary RoleDesigning, coding, and testing mainframe applicationsAnalyzing and maintaining existing mainframe systems
Skills & CertificationsCOBOL, JCL, DB2, certifications like IBM Certified DeveloperCOBOL, JCL, system analysis, troubleshooting skills
Work EnvironmentDevelopment teams, coding in mainframe environmentsSupport teams, system analysis, user support
Industry UsageFinancial services, insurance, government agenciesFinancial institutions, healthcare, government agencies

While Mainframe Developers focus on creating and implementing mainframe applications, Mainframe Analysts primarily analyze, troubleshoot, and maintain existing systems. Both roles require similar technical skills and often work within the same industries, but their core responsibilities differ in development versus support and analysis.

What are some common challenges mainframe developers face when integrating legacy systems with modern applications?

Mainframe Developers often encounter challenges such as ensuring compatibility between legacy systems and newer technologies, managing data migration without disrupting business operations, and maintaining the security of sensitive data. Effective communication with cross-functional teams, such as application developers and infrastructure engineers, is essential to address these challenges. Staying updated on both mainframe and modern programming practices helps ease integration and ensures long-term system reliability.

Is a mainframe developer a good career?

A mainframe developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical operations. The role offers stable employment, competitive salaries, and requires skills in languages like COBOL and tools such as JCL. Demand remains steady in industries like finance and government, making it a viable career choice for those with relevant expertise.

What is a mainframe developer?

Mainframe Developers are specialized software engineers who design, develop, maintain, and troubleshoot applications on mainframe computer systems, such as IBM's z/OS. They typically work with languages like COBOL, JCL, and CICS, and are responsible for ensuring the performance, security, and reliability of mission-critical business applications. Mainframe Developers are commonly employed in industries like banking, insurance, and government, where large-scale, high-volume transaction processing is essential.

Is mainframe developer still in demand?

Mainframe developers are still in demand in industries such as finance, government, and insurance that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand remains steady due to the ongoing need for system maintenance and integration. However, the overall job market is gradually shifting toward modern technologies, so acquiring skills in related areas can enhance job prospects.

What are the key skills and qualifications needed to thrive as a mainframe developer?

To thrive as a Mainframe Developer, you need expertise in programming languages such as COBOL, JCL, and SQL, along with a strong understanding of mainframe operating systems and batch processing concepts. Familiarity with tools like IBM z/OS, DB2, CICS, and version control systems is typically required, and certifications from IBM or related organizations can be beneficial. Strong problem-solving abilities, attention to detail, and effective communication skills help Mainframe Developers excel in troubleshooting and collaborating with cross-functional teams. These skills are crucial for maintaining, optimizing, and modernizing legacy systems that are vital to many large organizations’ operations.
What are the most commonly searched types of Mainframe Developer jobs in Orlando, FL? The most popular types of Mainframe Developer jobs in Orlando, FL are:
What are popular job titles related to Mainframe Developer jobs in Orlando, FL? For Mainframe Developer jobs in Orlando, FL, the most frequently searched job titles are:
What job categories do people searching Mainframe Developer jobs in Orlando, FL look for? The top searched job categories for Mainframe Developer jobs in Orlando, FL are:
What cities near Orlando, FL are hiring for Mainframe Developer jobs? Cities near Orlando, FL with the most Mainframe Developer job openings:
Mainframe Developer jobs near you
Infographic showing various Mainframe Developer job openings in Orlando, FL as of August 2026, with employment types broken down into 77% Full Time, 9% Part Time, and 14% Contract. Highlights an 79% Physical, 6% Hybrid, and 15% Remote job distribution, with an average salary of $103,645 per year, or $49.8 per hour.

Senior Kernel Software Developer

ThreatLocker

Orlando, FL • On-site

$50.75 - $67.25/hr

Full-time

Re-posted 23 days ago

ThreatLocker rating

7.0

Company rating: 7.0 out of 10

Based on 6 frontline employees who took The Breakroom Quiz

197th of 243 rated software companies

Job description

Job Summary:
ThreatLocker® is a leader in endpoint protection technologies, providing enterprise-level cybersecurity tools. We are seeking a Windows Kernel Driver Engineer to build and maintain critical kernel-mode components for threat detection and prevention on Windows systems.
Responsibilities:
• Design and develop kernel-mode filter drivers (file system minifilter, registry filter, network filter, etc.) to support security monitoring and enforcement.
• Investigate and reverse-engineer Windows internals to implement low-level security features and bypass-resistant protections.
• Collaborate with the threat research, detection, and user-mode engineering teams to develop scalable and stealthy security solutions.
• Perform in-depth kernel debugging, crash dump analysis, and performance tuning using WinDbg, ETW, and related tools.
• Develop robust, secure, and maintainable driver code that meets Microsoft's signing and certification standards.
• Monitor Windows platform changes to ensure compatibility and stability across OS versions.
Qualifications:
Required:
• 5+ years of hands-on experience writing Windows kernel-mode drivers, particularly filter drivers.
• Expert knowledge of Windows system internals (memory management, I/O subsystem, object manager, etc.).
• Proficiency in C/C++, Windows Driver Kit (WDK), and kernel debugging tools.
• Experience in the cybersecurity domain, especially endpoint protection, EDR, anti-malware, or kernel-level monitoring.
• Solid understanding of code injection techniques, hooking, kernel-mode exploits, and mitigation strategies.
• Strong problem-solving skills and a security-first engineering mindset.
Preferred:
• Experience with malware analysis, reverse engineering, or rootkit detection.
• Familiarity with Windows kernel threat models and secure coding practices.
• Exposure to Microsoft kernel-mode signing, WHQL, and driver submission processes.
• Contributions to the infosec community (research, publications, open-source projects, talks)
Company:
ThreatLocker is a cybersecurity company that specializes in endpoint security and application whitelisting solutions. Founded in 2017, the company is headquartered in Orlando, USA, with a team of 501-1000 employees. The company is currently Late Stage.

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