Company Description We solve our clients’ toughest technology challenges and deliver reliable outcomes that drive measurable results. By merging data, cloud, AI, and design with deep industry expertise and consulting, we create impactful yet intuitive digital solutions that empower people and move businesses forward. Job Description Job Summary We are looking for an experienced Mainframe Senior Developer with 8+ years of experience in mainframe application development, maintenance, and support. The ideal candidate should have strong hands-on experience with Mainframe technologies, IBM DB2 and, along with the ability to analyze business requirements, develop technical solutions, troubleshoot issues, and deliver high-quality code. Key Responsibilities • Design, Develop and maintain mainframe programs using COBOL, JCL, and other relevant technologies. • Design, develop, enhance, and maintain mainframe applications using IBM DB2 and related mainframe technologies. • Write, optimize, and troubleshoot DB2 SQL queries and database operations. • Perform impact analysis, root cause analysis, debugging, and production issue resolution. • Participate in requirements analysis, technical design, coding, unit testing, and code reviews. • Optimize application and database performance to ensure reliability and efficiency. • Collaborate with business analysts, architects, QA teams, and other technical stakeholders. • Support application releases, deployments, and production maintenance activities. • Prepare technical documentation and follow established coding standards and development best practices. Required Skills • 8+ years of hands-on experience in IBM Mainframe development. • Strong hands-on experience with COBOL ,JCL and VSAM. • Good experience with IBM DB2, including SQL queries, joins, subqueries, performance tuning, and database troubleshooting. • Knowledge of mainframe development, debugging, and batch processing. • Experience in application maintenance, enhancements, and production support. • Strong analytical, problem-solving, and troubleshooting skills. • Good communication skills and the ability to work effectively with distributed teams. Preferred Skills • Experience with CICS • Knowledge of DB2 utilities and database performance optimization. • Familiarity with mainframe tools such as File-AID, Abend-AID, and Xpediter. • Experience with change management, version control, and release management tools. • Exposure to Agile development methodologies. Work Location and Model • Location: Bangalore • Work Arrangement: Hybrid – a combination of work from office two days per week and work from home three days a week. Qualifications Education Bachelor’s degree in computer science, Information Technology, Engineering, or a related discipline. Additional Information At Tieto, we believe in the power of diversity, equity, and inclusion. We encourage applicants of all backgrounds, genders (m/f/d), and walks of life to join our team, as we believe that this fosters an inspiring workplace and fuels innovation. Our commitment to openness, trust, and diversity is at the heart of our mission to create digital futures that benefit businesses, societies, and humanity. Diversity, equity and inclusion | Sustainability | Tieto Stay alert to recruitment scams: • Tieto only communicates via @tieto.com email addresses. • We never ask candidates to pay fees or share financial details during recruitment. • If you receive a suspicious message claiming to be from Tieto, don't respond — verify it via our official careers site. • For more information visit Important Advisory Regarding Recruitment Fraud | Tieto Blog