A company in Saravanampatti, Coimbatore, is hiring a Senior AS400 Developer for a full-time, on-site role. It pays INR 127,500 a month.
Qualifications and experience
A bachelor's degree is required for this position. What carries real weight in the hiring process is practical, hands-on project experience on the AS400 platform, since legacy systems tend to reveal knowledge gaps quickly that a degree alone can't cover. This senior role calls for 96 months of hands-on RPG and AS400 development experience.
Skills needed
RPG programming sits at the core of this role, paired with deep familiarity with AS400 or iSeries systems and strong knowledge of DB2. Debugging skills matter more here than in most development roles, since legacy codebases often contain years of undocumented business logic that only becomes apparent when something breaks. Batch processing rounds out the core skill set, given how much of the platform's workload runs through scheduled jobs.
A few additional skills would strengthen an application:
- CL programming for job control and system-level scripting
- Experience modernizing RPG code to free-format syntax
- Embedded SQL within RPG for more efficient data access
- Basic IBM i system administration knowledge
What you'd be doing
- Write and maintain complex RPG programs supporting core business operations
- Lead code reviews and mentor junior developers working on the same codebase
- Diagnose and fix bugs in legacy programs, often without complete documentation to work from
- Sit with the business side when a request comes in and figure out what actually needs to change in the code to make it happen
- Optimize batch job performance as data volumes grow over time
A recent bug surfaced in a decades-old RPG program that calculated billing cycles, and it failed during a leap year because the original date logic had never accounted for that edge case. Fixing it properly meant not just patching the immediate error but replacing the hardcoded date math with a validated date routine, then walking a junior developer through why the original approach had been fragile in the first place. That kind of fix-and-teach moment comes up often when you're the senior person on a legacy codebase.
Pay and benefits
The role pays INR 127,500 a month. This listing on Naukri Mitra includes health insurance, paid time off, and performance-linked bonuses tied to project delivery. Since the position is on-site in Saravanampatti, relocation assistance and accommodation support are also available for candidates relocating from another city.
Working with a legacy system
AS400 systems in production often predate most of the engineers currently maintaining them, and that history shapes the work. Stability matters more than shipping fast, and a senior developer here carries real responsibility for not breaking something that's quietly run correctly for fifteen years. People who enjoy that kind of careful, high-stakes maintenance work, alongside genuinely mentoring less-experienced developers, tend to find this role rewarding in ways newer tech stacks don't always offer.
Applying
Send a resume detailing the scale and complexity of the AS400 systems you've worked on, including years of experience with specific business domains if relevant. Mention any modernization or migration projects you've led. Shortlisted candidates will walk through a real RPG debugging scenario during the technical interview.
