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COBOL (Common Business-Oriented Language) is a legacy programming language designed for business, finance, and administrative systems. Despite its age, COBOL still runs a significant portion of enterprise and government applications worldwide. If you're maintaining mainframe systems or updating legacy codebases, a skilled COBOL Developer is essential. Their expertise ensures the smooth operation of critical systems that modern businesses and financial institutions rely on.
Looking to hire a COBOL Developer for your project? Freelancer is the best place to find a quality COBOL Developer for every budget. With the widest range of experienced COBOL Developers, Freelancer makes it effortless to connect with professionals who can handle your legacy systems.
Post your project for free and connect with skilled freelancers ready to start today. Compare bids, ratings and portfolios, and only pay when you're happy with the work.
~310 mp
az első ajánlatig
53+
ajánlat projektenként
7k+
online szabadúszók
Nincs előzetes költség · csak akkor fizet, ha elégedett az elvégzett munkával

8,4
8,4
95%

Buenos Aires, Argentina
$35 USD óránként
"If human thinking fails, try anthropoid thinking. Fresh approach helps remove the obstacle." There used to be an ape-man in the photo: MoonWatcher. His bio takes us way back in time. I like to think of MoonWatcher as my oldest known ancestor. Had he lived in our times, he'd be well versed in the following: ● Database systems: • Airtable: database design, automation and scripting. • MS-Access, a sentimental favorite, handy and versatile like the ancient bone-made tools. • other databases: MS-SQLserver • MySQL • PL/SQL • DB2 SQL/400. • lastly a set of forgotten, prehistoric tools: dBase, Borland, Paradox, FoxPro. ● Programming languages (in alphabetical order): • C# • Cobol, all its reincarnations • IBM AS/400-iSeries, its languages: RPG, Cobol, CL, SQL/400, Query/400. • Javascript • SAP Datasphere, SAP Analytics Cloud • Visual Basic, all its reincarnations As you've read up to this point, you may feel intrigued by MoonWatcher's origins and developments. Read the first chapters in Arthur Clarke's "2001, A Space Odyssey". The anthropoid's fears and amazements, his early attempts at understanding the world, are magistrally depicted.

3,0
3,0
90%

Vindry sur Turdine, France
$15 USD óránként
Hi all, I'm French, advanced in English. I'm an engineer in IT since 2015 : I've begun in developping algorithms until 2016 and since 2016 i'm in software quality (Testing). In addition, i've the ITSQB Fundation and ISTQB advanced test manager. I translate documents from English to French for several years. In addition, i regularly translate documents for two agencies : One in games, and the other for others subjects. I'm looking forward to working with you.

1,8
1,8
100%

BARAKALDO, Spain
$25 USD óránként
I’m married birth on Markina (Bizkaia) . Computer Engineer Degree by University of Deusto with qualification of excellent in the End of Career thesis “Management of Supplying in a navigation company”. As experience has: Five years working in the Data Centre on Naviera Aznar as programmer on equipments S/3 and S/34 of IBM in RPGII language. Six years working as Analyst , System Technical in Elecnor on equipments s S/36,S/38 of IBM. Nowadays I’m working from 21 years on Formica as IT Manager where we have a iSeries working on languages RPG/400 and COBOL/400, and on Novell Netware and W2000/W2003/W2008 servers . I have experience on BPCS, PC’S, client servers, Communications, design and develop of applications ,Internet ,ERP’s and domain of English cause is necessary on my actual job with very often travels to UK and relationship with another companies of the group.. Waiting that my services can be useful I put to your arrangement .

9,4
9,4
99%

Manchester, United Kingdom
$34 USD óránként
Dream Solutions is a team of highly skilled developers, designers, and technology professionals dedicated to delivering exceptional digital solutions. We combine technical expertise, creativity, and a client-focused approach to provide high-quality services and products that meet the highest industry standards. Our team has extensive experience working with a wide range of technologies, frameworks, and software stacks, enabling us to develop tailored solutions that align with our clients unique business goals. Whether it's web development, mobile applications, custom software, UI/UX design, or cloud-based solutions, we are committed to delivering reliable, scalable, and innovative results on time and within budget. At Dream Solutions, we pride ourselves on building long-term partnerships by consistently exceeding expectations through quality, efficiency, and professional excellence.

8,4
8,4
97%

Dhaka, Bangladesh
$30 USD óránként
Hi, I’m Omar Faruk, CEO of ITblast Limited, the number one IT company in Bangladesh. With years of experience in web development, animation, and graphic design, I specialize in PHP, HTML, JavaScript, and Python. I’m also skilled in Linux system administration, Excel automation, Magento, and After Effects, among many other tools. My team and I provide top-quality services in: Web Development – Clean, functional, and user-friendly websites. Graphic Design & Animation – Eye-catching visuals and motion graphics. Data Analytics – Turning raw data into powerful insights. Network & System Administration – Ensuring secure and smooth IT operations. 3D Modeling – High-quality 3D assets for various industries. I believe in collaboration—the best results come from working closely with clients to understand their vision. I’m detail-oriented, committed to delivering high-quality work, and always open to feedback. Beyond my technical expertise, I pride myself on being a great communicator and problem-solver. Whether you need expert guidance or hands-on execution, I’m here to help. Let’s bring your ideas to life! ?

8,1
8,1
99%

Jodhpur, India
$25 USD óránként
Marching Ants Technologies is a team focused on delivering reliable, well-structured software solutions. Our approach is based on clear communication, steady delivery, and long-term client relationships. We have experience working on high-traffic and enterprise-level applications. Our work follows established development standards, with emphasis on clean architecture and attention to detail. Areas of expertise: Frontend and Mobile Development: React.js, React Native, AngularJS, iOS and Android app development. Backend Development: Node.js, PHP (Laravel, CodeIgniter, Lumen, CakePHP, Symfony, Yii), custom CMS development, API development. Databases: MySQL, PostgreSQL, MongoDB. Tools and Workflow: Jira, Trello, Basecamp, Git, Subversion. Mobile App Delivery: We support the complete development cycle and assist with App Store and Google Play submission and approvals. How we work: clear communication, maintainable and scalable code, solid project management, and a consistent, partnership-oriented approach. We welcome the opportunity to discuss your project requirements. Please feel free to get in touch.

6,7
6,7
100%

Wellington, India
$20 USD óránként
"One well-crafted presentation is equal to unlimited possibilities" * I am a powerpoint and pitch deck content designer. I have been designing presentations and infographics for medical, educational, travel & logistics companies, student coursebooks and investor decks for start ups and for varied requirements like product portfolio, sales pitch deck, educational, Project team orientations and technical content. To know more about my work and see some of the designs, refer to the portfolio section of my profile page. My aim is to bring in an engaging aspect into every pitch deck I design and make it an efficient projection of the content and engaging experience to the target audience. * I also started transcribing audios and video voice content on Freelancer.com in the year 2014 with the aim of providing premium quality transcriptions. I have been working closely on diverse Transcription projects with domestic and international clients for the past 8 years. My experience with clients from more than 10 global locations and exposure to different accents of languages has helped me understand the client requirements and serve them the best. I have transcribed over 800 Audio/Video hours till now and offer transcription services in English (US/UK/Australian/UAE/Indian accents). I offer Transcription of : Interviews Podcasts Academic talks and seminars Media talks and Radio shows Legal talks and LecDems Healing and Hypnotherapy sessions I am here at freelancer to make best use of my skills through my dedicated work, there by to benefit myself and my employer. Looking forward to work with people from different streams and explore the various flavors of work, that challenge my ability.

5,7
5,7
96%

Bangalore, India
$30 USD óránként
Mac has several years of experience in the Information Technology industry providing complex business solutions. His experience includes Architecture and Application design and development, Infrastructure Assessment and Support, Corporate Training in over 50 topics. Mac is a Sun Certified Programmer for Java 2, and a Certified Lotus Developer. Currently the core technical person in a software development company focused in the design and development of complex software applications using Microsoft .Net, Java/J2EE & IBM technologies, primarily Lotus Domino, WebSphere and DB2. Mac has engaged in projects using technologies such as Java, J2EE, Lotus Domino/Notes, MQ Series, and J2EE on IBM WebSphere / BEA WebLogic / IPlanet on various flavors of Unix including extensively on IBM AIX and Sun Solaris, to deliver solutions to a wide range of firms within the manufacturing, distribution, media/entertainment, insurance, telecommunication, and financial industries. He has also worked in Portal software such as the IBM Websphere Portal Server. He has assisted IBM Lotus Partner companies with determining a migration plan from Lotus Domino to the Lotus Workplace product set, including the usage of Lotus Workplace Web Content Management. Provided consultancy service to a leading IT company for a Weblogic Integration project involving interaction with a US based team. Consultancy included current system assessment, new system architecture proposal, design & system documentation, knowledge transfer to project team and training of key project members. Driving the development of 2 products based on Lotus / Java. Architecture, Design and Development for a JMX enabled portal for administration of a telecom switch. Mac also has interest in learning, speaking and transcribing Japanese/Korean and other languages.

6,0
6,0
100%

Cuneo, Italy
$12 USD óránként
Blogger, ghostwriter, SEO expert, Translator -Fluency in Italian (mother tongue) -Good knowledge of English and Spanish languages -High School post graduated in Accounting and Computer programming -Followed several courses and meetings regarding the SEO matter and organization blogs and websites -Ideas, ideas, many (maybe) good ideas ... What can I do for you? -Writing articles for blogs, websites, news ... on my behalf or as a ghostwriter -Editorial plans of blogs, websites, online news -Proofreading / Text Editing -Writing / rewriting articles in SEO key -Translation / Localization for texts, apps, websites, legal documents, product lists for Ebay, Amazon etc. from English or Spanish to Italian language What are my warranties? -Unique texts, not copied -Original ideas for setting up a new blog / website -High text quality, pleasant to read, that will capture the attention of the user -High translation quality (real localization) Punctuality, competence and good disposition!
A COBOL developer is a programmer who writes, maintains, and modernizes applications built in COBOL, the language powering many of the world's banking, insurance, and government mainframe systems. Hiring a skilled COBOL developer keeps mission-critical batch processing, transaction systems, and legacy business logic running reliably while opening a path to integration with modern platforms.
A COBOL programmer designs, codes, debugs, and maintains business applications written in COBOL, often running on IBM z/OS mainframes, AS/400 (IBM i), or Unix systems. Their work keeps the systems that process payroll, insurance claims, pension records, tax filings, and bank transactions accurate and auditable.
Because COBOL underpins core systems at financial institutions, government agencies, and large enterprises, a COBOL specialist is often the bridge between decades-old business logic and modern interfaces, APIs, and cloud workloads. They translate legacy logic into maintainable code, prevent regressions during upgrades, and document systems that may have lost their original authors.
Strong COBOL freelancers are fluent in the surrounding mainframe and enterprise stack, not just the language itself. Look for hands-on experience with:
COBOL remains entrenched wherever high-volume, high-reliability transaction processing is non-negotiable. Common engagements come from:
Because the skill set spans language, runtime, data, and operations, a strong candidate should show evidence of working across that full stack. Look for years of production COBOL experience, familiarity with the specific dialect and platform you run, and a track record of maintaining or modernizing real business systems rather than coursework alone.
Useful portfolio and profile signals include references to specific compilers and platforms, modernization or migration projects, performance tuning case studies, and clear documentation samples. Certifications from IBM in mainframe development or from Micro Focus in COBOL tooling add credibility.
Sample interview questions you can copy and use:
COBOL talent is concentrated and global, and Freelancer.com gives you direct access to experienced mainframe developers across multiple regions and time zones. You can post a single brief and receive competitive bids from specialists with decades of legacy systems experience, modernization consultants, and hybrid developers fluent in both COBOL and Java or .NET.
Freelancers on Freelancer.com hold verified profiles with ratings, written reviews, and visible completion history, so you can judge consistency before you commit. Milestone Payments protect your funds until agreed deliverables are met, which matters when the work touches production systems. Whether you need a few hours of production support or a multi-month migration, you can scope and hire on Freelancer.com without the overhead of a long agency procurement cycle.
Ready to keep your legacy systems running and modern initiatives on track?
Hiring a COBOL developer works best when your brief is precise about platform, dialect, and the state of the existing codebase. The process below helps you write a clear scope, compare proposals from qualified mainframe specialists, and award the project with confidence.
The quality of bids you receive depends almost entirely on how clearly you describe the environment and the work. Head to the
Bids are short proposals, not just price tags. A strong COBOL developer will reference the specific dialect, ask about data structures and copybooks, and propose a realistic approach for testing changes against production-like data. Read each proposal carefully and use Freelancer.com's chat to clarify scope before shortlisting.
Final selection should weigh proposal quality alongside profile evidence. For COBOL, prioritize freelancers with consistent ratings across multiple legacy or mainframe projects, not just a single strong example. Past client reviews often reveal how the developer handles ambiguous legacy code and production pressure.
Yes. Banks, insurers, and government agencies continue to run core systems on COBOL, and the pool of experienced developers is shrinking, which keeps demand high for both maintenance and modernization work.
Absolutely. Many engagements are short, scoped pieces of work such as bug fixes, JCL changes, code reviews, documentation passes, or proof-of-concept migrations. You can post a fixed-scope project or hire on an hourly basis depending on how well-defined the work is.
COBOL is a programming language; mainframe development is the broader discipline of building applications on platforms like z/OS, including JCL, CICS, DB2, and Assembler work. Most COBOL freelancers are also mainframe developers, but you should confirm exposure to the specific subsystems your environment uses.
For targeted tasks, modernization audits, support coverage, or focused development, an independent COBOL specialist on Freelancer.com is usually faster and more cost-effective. Larger multi-year transformations may benefit from an agency, but you can still source individual experts to augment internal teams.
Yes. Many COBOL freelancers specialize in modernization, including refactoring to Java or C#, lifting workloads to AWS or Azure, and wrapping legacy programs as APIs while preserving business logic and data integrity.

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Freelancer API
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Kisvállalkozásoktól az óriáscégekig, vállalkozóktól a startupokig milliók használják a Freelancert ötleteik megvalósítására.
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