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Cobol Developer Jobs in Colorado (NOW HIRING)

Jobtailor

Senior Software Engineer - Mainframe

Denver, CO · On-site

$85 - $125/hr

Leverage and build knowledge of software developer tools to create, debug, and maintain code for ... Development experience in COBOL, JCL, ISPF required * Development experience on MVS/OS 390 batch ...

Accenture

Mainframe Specialist

Denver, CO

$70K - $196K/yr

Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ... COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, or RACF. * Minimum 3+ years leading ...

US Bank

Software Engineer- Mainframe

Englewood, CO · On-site

Adept with agile software development lifecycle and DevOps principles (Git) * Experience with COBOL development, debugging, and maintenance across complex mainframe applications * Experience with ...

Cymertek

Software Developer

Aurora, CO · On-site

Software Developer LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY Are you a creative and driven individual who loves ...

Cymertek Corporation

Software Developer

Aurora, CO · On-site

$85 - $130/hr

Software Developer LOCATIONAurora, CO 80014 CLEARANCETS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARYAre you a creative and driven individual who loves turning ...

Auria Space

Software Developer

Colorado Springs, CO · On-site

Auria Space is looking to hire a Software Developer to support the development of the Command and Control System - Consolidated (CCS-C) Sustainment and Resiliency (C-SAR) for current and future ...

FortyAU

Software Developer

Denver, CO · On-site

Founded by developers for developers, our team is solely focused on solving problems by writing great code for our clients. We look for versatile developers that understand code at a fundamental ...

Leidos

Software Developer

Colorado Springs, CO

$107K - $195K/yr

Software Developer Location: Colorado Springs, CO Make an Impact with Leidos! Leidos Defense Sector has an opportunity in the Integrated Tactical Warning/Attack Assessment (ITW/AA) and Missile ...

Leidos

Software Developer

Colorado Springs, CO

$73K - $132K/yr

Software Developer Location: Colorado Springs, CO Make an Impact with Leidos! Leidos Defense Sector has an opportunity in the Integrated Tactical Warning/Attack Assessment (ITW/AA) and Missile ...

Leidos

Software Developer

Colorado Springs, CO · On-site

$107K - $195K/yr

Software Developer Location: Colorado Springs, CO Make an Impact with Leidos! Leidos Defense Sector has an opportunity in the Integrated Tactical Warning/Attack Assessment (ITW/AA) and Missile ...

Leidos

Software Developer

Colorado Springs, CO · On-site

$73K - $132K/yr

Software Developer Location: Colorado Springs, CO Make an Impact with Leidos! Leidos Defense Sector has an opportunity in the Integrated Tactical Warning/Attack Assessment (ITW/AA) and Missile ...

Cymertek Corporation

Software Developer

Aurora, CO · On-site

They are seeking a talented Software Developer to design, develop, and maintain high-quality applications while collaborating with a dynamic team and applying problem-solving skills. Responsibilities ...

Leidos

Software Developer

Colorado Springs, CO

$87K - $157K/yr

Software Developer Location: Colorado Springs, CO Make an Impact with Leidos! Leidos Defense Sector has an opportunity in the Integrated Tactical Warning/Attack Assessment (ITW/AA) and Missile ...

Leidos

Software Developer

Colorado Springs, CO · On-site

$87K - $157K/yr

Software Developer Location: Colorado Springs, CO Make an Impact with Leidos! Leidos Defense Sector has an opportunity in the Integrated Tactical Warning/Attack Assessment (ITW/AA) and Missile ...

Auria

Software Developer

Colorado Springs, CO · On-site

$70K - $135K/yr

Auria is looking to hire a Software Developer to support the development of the Wideband Global Satellite Communications (SATCOM) (WGS) F11 Global SATCOM Configuration Control Element (GSCCE). The ...

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Cobol Developer information

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$11

$58

$76

How much do cobol developer jobs pay per hour?

As of Aug 29, 2026, the average hourly pay for cobol developer in Colorado is $58.38, according to ZipRecruiter salary data. Most workers in this role earn between $50.82 and $68.75 per hour, depending on experience, location, and employer.

What is a Cobol developer?

A COBOL Developer is a software programmer who specializes in using the COBOL (Common Business-Oriented Language) programming language to design, develop, maintain, and troubleshoot business applications. COBOL is a legacy language primarily used in mainframe computing environments, common in industries like banking, insurance, and government. COBOL Developers often work on updating, maintaining, or migrating older systems that are critical to business operations. Their responsibilities may also include analyzing existing code, optimizing performance, and ensuring systems comply with current regulatory and security standards.

What does a Cobol developer do?

COBOL stands for Common Business-Oriented Language. It is a programming language used in business applications. A COBOL developer works on developing applications using this programming language that operate on an organization's mainframe computers. Businesses use COBOL for large tasks, such as transaction and batch processing. As a COBOL developer, your responsibilities include coding new programs using COBOL or assessing and upgrading existing programs and applications to meet business needs and objectives.

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

To thrive as a Cobol Developer, you need strong programming skills in COBOL, a solid understanding of mainframe environments, and experience with legacy systems, often supported by a degree in computer science or related field. Familiarity with tools like IBM z/OS, JCL, DB2, and transaction processing systems is typically required, along with knowledge of version control systems. Analytical thinking, attention to detail, and effective communication help developers troubleshoot issues and collaborate with teams maintaining critical enterprise applications. These skills and qualities are essential to ensure the reliability and modernization of core business systems that depend on COBOL.

What are some of the common challenges Cobol developers face when working with legacy systems?

Cobol Developers often encounter challenges related to maintaining and upgrading legacy systems, such as limited documentation, outdated hardware, and code that was written decades ago by other programmers. Integrating Cobol-based applications with modern technologies and platforms can also require creative problem-solving and strong analytical skills. Collaboration with business analysts and IT teams is essential to accurately translate current business needs into the existing codebase while ensuring system stability and data integrity.

What is the difference between Cobol Developer vs Mainframe Developer?

AspectCobol DeveloperMainframe Developer
Required CredentialsProficiency in COBOL, JCL, DB2Proficiency in COBOL, JCL, DB2, and mainframe tools
Work EnvironmentLegacy systems, mainframe environmentsMainframe systems, enterprise IT infrastructure
Employer & Industry UsageFinancial, insurance, government sectorsFinancial institutions, government agencies, large enterprises
Common Search & ComparisonOften compared for mainframe roles involving COBOLBroader role including system administration and maintenance

While both roles involve working with mainframe systems and COBOL, a Cobol Developer primarily focuses on coding and maintaining COBOL applications. A Mainframe Developer may handle a wider range of tasks, including system setup, maintenance, and integration within mainframe environments. The roles often overlap, but Cobol Developers are more specialized in application development.

Is there a demand for Cobol developers?

Cobol developers are still in demand for maintaining and updating legacy systems in industries such as banking, finance, and government. Many organizations require expertise in Cobol for critical mainframe applications, and experienced developers with knowledge of mainframe environments and tools are sought after. However, the overall demand is stable but limited compared to newer programming languages.
More about Cobol Developer jobs

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For Cobol Developer jobs in Colorado, the most frequently searched job titles are:

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Cities in Colorado with the most Cobol Developer job openings:

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For Cobol Developer jobs in CO, the most frequently searched job titles are:

Cobol Developer jobs near you
Infographic showing various Cobol Developer job openings in Colorado as of August 2026, with employment types broken down into 82% Full Time, 5% Part Time, and 13% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution, with an average salary of $121,424 per year, or $58.4 per hour.

Senior Software Engineer - Mainframe

Jobtailor

Denver, CO • On-site

$85 - $125/hr

Other

Posted 13 days ago

Job description

  • Collaborate with stakeholders to interpret requirements for project components and incorporate feedback into future designs or solution fixes.
  • Translate business requirements by verifying assumptions and escalating potential design issues to appropriate stakeholders.
  • Contribute to project estimation and upscale issues that may cause delays.
  • Develop, implement, and maintain code for products, services, or components, applying coding patterns, guidelines, and best practices.
  • Apply debugging tools to verify assumptions and proactively flag issues before they occur.
  • Participate in code reviews to ensure coding standards are followed and address routine pull requests.
  • Manage end-to-end lifecycle of application enhancements by working with architects, systems analysts, project managers, QA and other developers to successfully implement projects.
  • Leverage and build knowledge of software developer tools to create, debug, and maintain code for components.
  • Prepare technical documents, develop code, review code, build environment, review test results, and prepare plan for implementation.
  • Identify opportunities for future enhancements and refinements to standards, best practices and development methodologies.
Requirements
  • Master's degree in Math, Science, Engineering, or Computer Science, Information Systems or related field
  • OR Bachelor's degree in Math, Science, Engineering, or Computer Science, Information Systems or related field AND minimum two (2) years of experience in a directly related field
  • OR Minimum five (5) years of directly related experience.
  • Development experience in COBOL, JCL, ISPF required
  • Development experience on MVS/OS 390 batch application required
  • Development experience using ESP, CA7 or another scheduling software
  • Development experience using FILE-AID
  • Development experience with Connex/Advantage settlement application or equivalent
  • Development experience with a Settlement/Reporting application in the Financial sector
  • Ability to solve complex software development/design issues
  • Ability to write clean, coherent code following established coding guidelines
  • Strong analytical and problem-solving skills
  • Good knowledge of EFT settlement and transaction processing
  • Hands-on knowledge of Artificial Intelligence (AI) and Large Language Models (LLM) is highly desirable.
Core Competencies

Demonstrates expertise in COBOL, JCL, and MVS/OS 390 batch application development, with a strong focus on coding best practices and debugging. Proficient in managing application enhancements and collaborating with cross-functional teams in the financial sector.

Highest-signal resume keywords
  • COBOL Development
  • MVS/OS 390 Batch Application Development
  • EFT Settlement Knowledge
  • Analytical Problem-Solving
  • Artificial Intelligence (AI) Knowledge
Hard Skills
  • COBOL
  • JCL
  • ISPF
  • ESP
  • CA7
  • FILE-AID
  • Connex/Advantage
  • Settlement Application Development
  • Transaction Processing
  • Coding Guidelines
Soft Skills
  • Analytical Skills
  • Problem-Solving Skills
Industry Keywords
  • Financial Sector
  • EFT Settlement
  • Transaction Processing
  • Software Development
  • Development Methodologies
Tools & Technologies
  • Scheduling Software
  • Debugging Tools
  • Software Developer Tools
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