[Skip to main content](#main-content) [ OpenNash ](https://opennash.com/) / [Jobs](https://jobs.opennash.com/) [ 01 Search jobs](https://jobs.opennash.com/search/)[ 02 Companies](https://jobs.opennash.com/explore/)[ 03 Hiring report](https://jobs.opennash.com/reports/hiring/)[ 04 AI assistants](https://jobs.opennash.com/connect/)[ 05 How it works](https://jobs.opennash.com/methodology/) IBM · Bangalore, IND # AIX Developer (COBOL) Bangalore, IND Software Engineering Listed on IBM’s official careers site. Posted November 3, 2026. Check that it is still open and apply there. [Apply on IBM’s careers site →](https://ibm.dejobs.org/jobs/A0A89EFF0115475EB0FC5F97CCDAC8C6/) [OpenNash Jobs](https://jobs.opennash.com/) / [IBM](https://jobs.opennash.com/companies/ibm/) / AIX Developer (COBOL) ## Job description ### Introduction At IBM Infrastructure & Technology, we design and operate the systems that keep the world running. From high-resiliency mainframes and hybrid cloud platforms to networking, automation, and site reliability. Our teams ensure the performance, security, and scalability that clients and industries depend on every day. Working in Infrastructure & Technology means tackling complex challenges with curiosity and collaboration. You'll work with diverse technologies and colleagues worldwide to deliver resilient, future-ready solutions that power innovation. With continuous learning, career growth, and a supportive culture, IBM provides the opportunities to build expertise and shape the infrastructure that drives progress. Your role and responsibilities - This role involves working with complex language semantics and translating them into robust, production-quality compiler implementations. - Experience with COBOL, particularly IBM COBOL implementations, is highly valuable. - Candidate should be comfortable independently investigating language behavior, interpreting detailed language specifications, making sound technical design decisions, and solving complex problems across the compiler stack. - Candidate to demonstrate technical leadership, strong ownership, and the ability to guide design and implementation decisions while collaborating effectively with other experienced engineers. Required technical and professional expertise - Strong C/C++ — production-quality systems programming - Compiler theory and practice — must have built or significantly contributed to a real compiler, interpreter, or static analysis tool - Lexer and parser construction — hand-written or tool-generated (e.g. ANTLR, Flex/Bison); understands grammar ambiguity and conflict resolution - AST design and semantic analysis — symbol tables, type systems, scope resolution Preferred technical and professional experience - Deep practical COBOL knowledge must have written or maintained production COBOL applications - IBM COBOL for AIX or Enterprise COBOL for z/OS — familiarity with IBM-specific extensions and compiler behaviours - COBOL data model expertise — PIC clause semantics, COMP/COMP-3/COMP-5 variants, packed decimal arithmetic, REDEFINES, RENAMES, level-number hierarchy - Understanding of COBOL runtime behavior — CALL linkage, PERFORM ranges, file I/O semantics - Ability to write precise behavioural specifications from the IBM COBOL language reference IBM is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, caste, genetics, pregnancy, disability, neurodivergence, age, veteran status, or other characteristics. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status. ## At a glance - Posted by the employer: Nov 3, 2026 - First seen by OpenNash: Nov 9, 2026 - Last checked: Nov 9, 2026 - Listed for: 6 days - Location: Bangalore, IND[Apply on IBM’s careers site →](https://ibm.dejobs.org/jobs/A0A89EFF0115475EB0FC5F97CCDAC8C6/) ## More jobs at IBM ### [AIX Developer (Compiler)](https://jobs.opennash.com/companies/ibm/jobs/1edbe3f50d9098c0544b/) Bangalore, IND ### [Application Consultant-DevOps](https://jobs.opennash.com/companies/ibm/jobs/e856397082bd2571a314/) Bangalore, IND ### [Application Developer-AWS Cloud FullStack](https://jobs.opennash.com/companies/ibm/jobs/c3a6cb02fd05cd77b2e2/) Bangalore, IND ## Similar jobs at other companies ### [Analista Cobol](https://jobs.opennash.com/companies/ntt/jobs/c78fdd3307f9d2044cc1/) NTT · Valencia, Spain ### [Analista Programador Cobol](https://jobs.opennash.com/companies/ntt/jobs/4b9da70543402992e335/) NTT · Trujillo, Peru ### [AS400 Cobol](https://jobs.opennash.com/companies/tata-consultancy-services/jobs/db5382e9504bef662859/) Tata Consultancy Services · Bengaluru ### [Cobol Developer](https://jobs.opennash.com/companies/tata-consultancy-services/jobs/0b472654930266e25c45/) Tata Consultancy Services · Mumbai ### [ABL - Developer Cobol / Unisys](https://jobs.opennash.com/companies/capgemini/jobs/1bb043e2a5510f8724cb/) Capgemini · Aguascalientes [Software Engineering jobs](/functions/software-engineering/) OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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