1

Mainframes Developer Jobs in Missouri (NOW HIRING)

The role requires a combination of engineering skills, client collaboration, and solution-oriented ... Additional experience with COBOL, IBM Mainframe technologies, ISPF, JCL, SPUFI, SCLM, Java, .NET, ...

Our company provides application analysis, design, development and programming, software engineering, systems development, testing, integration, and implementation, and management consulting services ...

Field Engineer? Service Technician? Or do you want to start a career in this field? Are you tech ... Familiarity with large servers, mainframe computers, and imaging software. * A+ Certification ...

Field Engineer? Service Technician? Or do you want to start a career in this field? Are you tech ... Familiarity with large servers, mainframe computers, and imaging software. * A+ Certification ...

Field Engineer? Service Technician? Or do you want to start a career in this field? Are you tech ... Familiarity with large servers, mainframe computers, and imaging software. * A+ Certification ...

Showing results 41-57

Mainframes Developer information

What does a Mainframes Developer do?

A Mainframes Developer designs, codes, tests, and maintains applications running on mainframe systems, primarily using languages like COBOL, PL/I, or Assembler. They ensure the stability, security, and efficiency of legacy systems, often working with tools such as JCL and DB2, and may collaborate with system administrators and analysts to support business operations.

Is a mainframes developer a good career?

A mainframes developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical data processing. The role offers stable employment, competitive salaries, and opportunities to work with legacy systems and mainframe programming languages like COBOL. However, it requires specific skills and certifications, and the field may have limited growth compared to emerging technologies.

Is a mainframes developer still in demand?

Mainframes developers are still in demand in industries such as finance, government, and healthcare that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand persists due to the continued use of mainframe technology for critical applications. However, the number of new positions is gradually decreasing as organizations modernize their IT infrastructure.

What is the difference between Mainframes Developer vs Mainframes Analyst?

AspectMainframes DeveloperMainframes Analyst
Required CredentialsTypically a degree in Computer Science or related field; certifications like IBM Certified SpecialistSimilar credentials; often holds certifications in mainframe systems and analysis
Work EnvironmentDevelops, codes, and tests mainframe applications in a software development settingAnalyzes existing mainframe systems, gathers requirements, and supports system improvements
Employer & Industry UsageUsed by banks, insurance companies, and large enterprises for application developmentEmployed in similar industries for system analysis, troubleshooting, and process optimization

While both roles require knowledge of mainframe systems and similar credentials, Mainframes Developers focus on creating and maintaining mainframe applications, whereas Mainframes Analysts analyze existing systems to improve performance and efficiency. Both roles are vital in large enterprise IT environments.

What are popular job titles related to Mainframes Developer jobs in Missouri? For Mainframes Developer jobs in Missouri, the most frequently searched job titles are:
What job categories do people searching Mainframes Developer jobs in Missouri look for? The top searched job categories for Mainframes Developer jobs in Missouri are:
Infographic showing various Mainframes Developer job openings in Missouri as of August 2026, with employment types broken down into 84% Full Time, 2% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Principal Consultant - Endpoint Security | Remote, USA

Optiv Security, Inc.

Kansas City, MO • Remote

$134K - $184K/yr

Full-time

Re-posted 4 hours ago


Job description

This position will be fully remote and can be hired anywhere in the continental U.S

The Principal Consultant will be pivotal to problem definition and discovery of the overall solution and guide teams on project processes, deliverables. This individual will drive the technical relationship with our customers and partners by providing advanced architecture, implementation and operational support.

Acts as overall industry leaders and leaders of technical excellence providing exceptional services and support to strategic clients setting the bar for others to aspire to.

How you'll make an impact

  • Work with customers to help them articulate their business requirements and how those requirements translate into security features and functionality.

  • Assist with development of cyber engagement plans for customers which will enable them to execute upon strategies.

  • Rationalize different security solutions against requirements, risk, and constraints.

  • Recognized expert across multiple solution areas

  • Able to deliver and lead other consultants in complex projects

  • Able to present to large groups. Speaks as an authority.

  • Can handle difficult questions and consistently wins support from client audiences.

  • Can modify and change methodologies as required.

  • Broad awareness of the security/ technology space as a whole

  • Contributor to industry groups and/or publications

What we're looking for

  • Bachelor's degree and approximately 10-15 years of related work experience.

  • Approximately 8-10 years of technical architecture experience

  • Expertise with implementation, administration, and maturation of Endpoint Detection and Response (EDR) Mobile Device Management (MDM) and Application Control technologies

  • Primary Expertise with Microsoft Defender and Intune (Microsoft On-Prem Services and Cloud Services)

  • Experience with CrowdStrike, SentinelOne, Tanium, Microsoft

  • Desirable experience within one or more of the following Security Architecture and/or Enterprise Architectural Frameworks (e.g. SABSA, TOGAF, O-ESA).

  • Very knowledgeable of multiple security concepts and methods such as vulnerability assessments, data classification, privacy assessments, incident response, security policy creation, enterprise security strategies, architectures and governance.

  • Understand the Services business and impact decisions have to the organization holistically

  • Strong understanding of networking (TCP/IP, OSI model), operating system fundamentals (Windows, UNIX, mainframe), security technologies (firewalls, IDS/IPS, etc.) and application programming/scripting languages (C, Java, Perl, Shell).

  • Strong understanding of regulatory requirements and compliance issues affecting clients related to privacy and data protection, such as PCI DSS, GLBA, Basel II, EU Data Protection Directive, International Cross Border, and U.S. State Data Privacy Laws.

  • Technical architecture experience integrating data protection software into clients' infrastructure; network architecture design, implementation and administration.

  • Working knowledge of operating systems, virtual machine environments, mainframe security packages, and relational database management systems.

  • Willingness to travel to meet client needs

  • Valid driver's license in the US and a valid passport required

  • The successful candidate must hold or be willing to pursue related professional certifications such as the CISSP, CISM, and/or CISA.

  • Strong interpersonal skills

  • Strong written and presentational skills; ability to clearly communicate complex messages to a variety of audiences

  • Possess high standard of integrity and confidentiality

  • #LI-GN1

Salary Range Description

$134,600.00 - $184,500.00 Annual

The Hiring Range provided for this role is informed by (but not limited to) various factors including responsibilities of the position, work experience, education/training, internal peer equity, geography, as well as other market influences when extending an offer. The disclosed range has not been adjusted for these factors. This role may also be eligible to participate in a variable incentive-based bonus plan. Optiv offers a comprehensive compensation and benefits package, of which salary is a component.

Job Application Window

This position accepts applicants for a minimum of 4 business days after the job posting date and will remain available until an applicant has been selected for the position.

What you can expect from Optiv

  • A company committed to our inclusive value through our Employee Resource Groups

  • Work/life balance

  • Professional training resources

  • Creative problem-solving and the ability to tackle unique, complex projects

  • Volunteer Opportunities. "Optiv Chips In" encourages employees to volunteer and engage with their teams and communities.

  • The ability and technology necessary to productively work remotely/from home (where applicable)

EEO Statement

Optiv is an equal opportunity employer. All qualified applicants for employment will be considered without regard to race, color, religion, sex, gender identity or expression, sexual orientation, pregnancy, age 40 and over, marital status, genetic information, national origin, status as an individual with a disability, military or veteran status, or any other basis protected by federal, state, or local law.

Optiv respects your privacy.By providing your information through this page or applying for a job at Optiv, you acknowledge that Optiv will collect, use, and process your information, which may include personal information and sensitive personal information, in connection with Optiv's selection and recruitment activities. For additional details on how Optiv uses and protects your personal information in the application process, click here to view ourApplicant Privacy Notice. If you sign up to receive notifications of job postings, you may unsubscribe at any time.