Hire COBOL Developers

Hire Mainframe/Cobol Developers

We are programmers who are experts in both legacy (IBM Mainframe, COBOL, JCL and IBM i/AS400) and modern platforms (Windows, Java, SQL, etc.). We extend your existing team so you can accomplish your goals faster. We offer an industry unique “Don’t pay us if you are not satisfied” guarantee on our work.

Hire Us As Your Custom Cobol Developers

Dedicated Cobol Developers Who Bring Cost-effective, Valuable Support to Match Your Business Needs


Application Development

Our programmers develop, test, and deploy business applications in COBOL for different operating systems like Z/OS, IBM i, OpenVMS, Windows, etc. Our services include engineering mission-critical applications and systems, modernized interfaces, software security, and ensured availability.


Maintenance & Migration

Our programmers are experts in complete software development lifecycle services. We update and maintain legacy COBOL software or migrate to newer technologies. Our expertise includes all versions of COBOL, Java, .NET, SQL, and more. We adhere to ISO / IEC standards for COBOL development.


Industry Specialties

Our programmers have experience in a variety of industries, including banking, finance, insurance, utilities, transportation and more. Hire an expert with experience in your industry’s regulations and standards, plus COBOL expertise to deliver the highest quality software.

What Makes Us Unique


Legacy & Modern Platform Support

  • Experts who understand both legacy and modern platforms
  • Certified programmers with SME and large enterprise experience
  • Onsite or Remote Support

Performance Guarantee

  • Try us for thirty days
  • If you are not happy, you will not be invoiced
  • No Upfront Fee

Transparent Billing

  • Fixed monthly pricing
  • No overtime charges
  • No long term agreements

Our programmers were featured in IBM Fresh Faces. Learn more

Programmers.io - Hc Arrow

Happy Customers100% of our customers would recommend us to a friend

Happy Customers

Clients' Experiences

Our clients return to us, saying we’re high performing, reliable, helpful, quick and productive.


Programmers.io has been so helpful. We have been using them for over 18 months and I am constantly looking for more projects to send them.

Director, Implementation and Support, Land & Vitals Granicus


The team is performing really well. They are learning fast and work with our team and culture well.

Applications Director Western National Insurance


The team at Programmers.io has been fantastic. I was surprised at how fast they learned our system and were producing code...

EDI Manager Saia

Why Cobol For My Project?

In spite of being over 60 years old, COBOL remains a flexible and resilient language written into most financial systems and government agencies. 90% of Fortune 500 companies work on active COBOL code, and over 220 billion lines of COBOL code still exist. In spite of all the flashy young languages and frameworks, COBOL makes up 80% of the world’s actively used code. Recently, COBOL engineers retired en masse and young developers learned new languages, creating a crunch for organizations seeking to update or migrate due to legacy code.

Our COBOL coders can create cloud solutions, develop and deploy modern business applications for your operating system, modernize your interfaces, support and maintain your technologies.

One of COBOL’s advantages is its tank-like capacity to handle large systems and its security. However, recent crises like the COVID pandemic show how critical it is to modernize and maintain. Many COBOL pioneers have retired en masse so older code may lack documentation or your company may find it hard to hire COBOL experts. Our COBOL coders can update your system’s efficiency and security. Whatever your industry, we have COBOL experts who work with the latest technology tools and know the industry-specific regulations.

Advantages of COBOL

  • Widely-used.
  • Portable, hierarchical, and maintainable.
  • Robust with many tools to aid with testing, debugging, and analysis.
  • Handles huge processing volumes with ease.
  • Still widely used for mainframes in major industries including national and international transportation, insurance, and banking systems.
  • Excels in government and fintech mainframes due to security and reliability though it requires security maintenance and innovation
  • Easy to read with high-level English-like syntax in four divisions.
  • Includes appendices, cross-reference tables, chapters, footnotes and paragraphs.
  • Offers 43 statements, 87 functions and one class for portability.
  • High portability reduces the need for re-compilation.

Technology Expertise (Mainframe and AS/400):

  • OS: MVS, OS-390, UNIX, IBM i, Z/OS
  • Languages: COBOL, CLLE, JCL, REXX, PL/1, C/C++, Assembler, Java, Fujitsu Cobol, Microfocus Cobol, SAS
  • Interfaces: MQ Series
  • Utilities: Syncsort, Fileaid, FILE MANAGER, ISPW, TSO/ISPF


Scale YourDevelopment Team

Programmers.io helps you execute projects by providing trusted Cobol developers who can join your team and immediately start delivering high-quality applications to help your business grow.

Hire COBOL Developers


Check out our latest publications and research works on Cobol Development:

[pt_view id=”b2ced76phl”]