Salt Lake Sector V in Kolkata has an AS400 Developer opening, full time, on site, with a software team maintaining mainframe systems on IBM's AS400 platform. Two and a half years of experience is the expectation, and this is a genuinely different kind of software work than most modern web development roles.
The work covers implementing new features based on project requirements, debugging and resolving technical issues, documenting work for future reference, and participating in code reviews, all within RPG and DB2 on a platform that's quietly run core business processes for decades. A batch job failure here means someone's overnight process didn't complete, and that has real downstream consequences the next morning.
A bachelor's degree in computer science, information technology, or a related field is expected, along with proficiency in the relevant languages, tools, and frameworks for this role. The team is realistic that AS400 experience specifically is rarer than it used to be, and candidates with strong general programming fundamentals and genuine willingness to learn the platform are seriously considered.
Any exposure to legacy mainframe systems generally, even outside AS400 specifically, familiarity with job scheduling concepts, and genuine patience for a slower, more deliberate release cadence than typical modern development.
Salt Lake Sector V is one of Kolkata's most established tech corridors, and this team's AS400 work is a genuinely specialized niche that fewer developers enter each year, which past hires describe as a real job security advantage over more crowded modern stacks. Naukri Mitra has listed a few software roles from this employer, and developers who've joined recently describe the systems here as quietly critical, running processes that would cause real disruption if they stopped working, despite the platform's unfashionable reputation.
Interviews include a technical round on RPG fundamentals and a discussion of your approach to debugging an unfamiliar batch job failure. Candidates who describe a patient, methodical debugging process tend to interview well.
This role is based at Salt Lake Sector V, Kolkata, pin code 700091, five days a week on site. Pay is up to ₹71,500 a month. The team hopes to fill this seat within five weeks.