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We are looking for a skilled Senior Host Developer to join our team. In this position, you will play a key part in shaping and enhancing essential mainframe solutions that power core banking operations. Working closely with cross-functional teams, you will help deliver dependable, high-performing applications that align with business goals. Responsibilities Participate in the creation and advancement of core banking applications that underpin essential business functions Perform corrective, adaptive, and evolutionary maintenance on mission-critical applications with strict high-availability requirements Diagnose and resolve production incidents to limit disruption to banking operations Support functional, integration, and certification testing to secure application stability before release Requirements At least 3 years of relevant professional experience in software development or a comparable field Hands-on background in application development with COBOL on IBM z/OS Working expertise in batch process programming using JCL Proficiency in transactional application development with CICS Solid mastery of IBM Db2 and SQL databases for managing data and running queries Practical experience in AI Solution Engineering to design and deliver AI-powered capabilities within enterprise systems Background in Gen AI Application Development for creating solutions built on generative AI models Real-world experience with Gen AI Assisted Development to speed up coding, testing, and delivery activities Skill in Prompt Engineering for crafting effective, reliable, and finely tuned prompts for AI models Strong written and spoken command of English and Spanish at a B2 level or above Nice to have Deeper expertise with COBOL for supporting and improving legacy business-critical systems Broader background with CICS for building and sustaining transactional applications Advanced JCL skills for automating and orchestrating batch processing workflows Extensive knowledge of DB2 for optimizing database performance and managing large data volumes
Here's where they are and how to stand out in your next interview.
24.795Jobs
9.577IN
74%EN
That number includes positions in India (9,577), Poland (3,429), the United States (1,753), Singapore (787), and Brazil (779). If you're looking to move or work remotely, check which countries match your goals — then filter WorkMundi by location to see what's actually hiring near you.
Most developer ads you'll see are written in English: 18,397 of the 24,795. That doesn't tell you whether the job itself requires you to speak English or work in English daily, so read each posting carefully. Don't assume the language of the ad matches the language of the team.
The employers posting the most developer roles are Link Group (369 jobs), Upvanta (257), jobgether (226), and OfferZen (212). If you're applying to any of these, research their hiring patterns. They move fast and post often, which means they're either scaling hard or replacing people who didn't fit.
In your interview, expect this: 'Walk me through the last time you had to debug something that took you more than an hour. What was it, what did you try first, and what would you do differently?' Hiring managers ask this to see if you think systematically or just try random fixes. Have a real example ready with specifics.