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Ensono

Senior System Engineer

Ensono
Pune, IndiaPosted about 2 months agoDiscoveredMatch locked
8+ years expSoftware Engineering

About Us

Ensono is a hybrid IT services provider that sees a world in transformation. We understand the world of business has become more complex, layered, and interdependent because we're enabling the IT infrastructure for that transformation. Our clients are some of the most innovative and forward-thinking companies in the world and we help keep their businesses thriving. With nearly 50 years of experience, we optimize and modernize IT infrastructure by amplifying the power of mainframes and mid-range servers with the agility of cloud. Check us out at www.ensono.com.

Job Summary

The AIX L3 System Administrator is responsible for expert‑level administration, engineering, and support of IBM AIX and pSeries environments. This role acts as the highest technical escalation point, owning complex troubleshooting, performance tuning, migrations, virtualization, and lifecycle management while ensuring system stability, security, and availability in mission‑critical environments.

AIX & pSeries Administration

  • Install, configure, administer, and maintain

IBM AIX servers

in enterprise environments

  • Perform

AIX OS administration, kernel management, and LVM management

  • Manage

user administration

, security policies, password, and identity management

  • Administer system services such as

Virtualization & Power Platform

  • Strong expertise in

PowerVM / VIOS

, HMC, and AIX virtualization

  • Build and administer

VIOS servers

  • Manage

HMC administration and upgrades

(Version 9 & 10)

  • Deep knowledge of

Power8, Power9, and Power10/11 pSeries architectures

  • Expert understanding of:

•

DLPAR

•

LPM (Live Partition Mobility)

•

Virtual networking

•

Virtual storage

•

SR‑IOV, vNIC adapters

  • Hands‑on experience with

NPIV

and SAN‑attached storage

Build, Migration & Lifecycle Management

  • Perform

AIX server build and configuration

using best practices

  • Manage

NIM (Network Installation Manager)

for OS deployment and maintenance

  • Execute

OS patching, upgrades, and VIOS upgrades

  • Lead and execute

OS migrations

: 6.1, 7.1, 7.2, 7.3.

  • Perform

hardware refresh, storage migration, and platform migrations

  • Experience in

Performance, HA & DR

  • Analyze

resource utilization and system performance

  • Perform

performance tuning and capacity planning

  • Strong experience in

storage management

,

SAN environments

, and

HA concepts

  • Design and support

Fault Tolerant systems

,

Business Continuity

, and

Incident, RCA & Operations

  • Act as

final escalation point

for complex AIX and hardware‑related issues

  • Strong in

hardware and OS‑level troubleshooting

  • Lead

Major Incident troubleshooting and RCA

  • Perform

trend analysis

, identify recurring issues, and drive corrective actions

  • Coordinate with

hardware vendors

for issue resolution

  • Plan, schedule, and execute changes; coordinate with cross‑functional stakeholders
  • Prepare

weekly and monthly operational status reports

  • Adhere to

ITIL processes

, quality, and security standards

Automation & Documentation

  • Develop

Shell / Perl scripts

to automate day‑to‑day administration tasks

  • Maintain and update

technical documentation, SOPs, and knowledge base

  • Support continuous

Leadership & Collaboration

  • Provide

technical SME support

across projects and operations

  • Work closely with application, database, storage, network, and cloud teams
  • Communicate effectively with interdisciplinary technical and non‑technical teams
  • Work in

Required Skills & Experience

•

8-12+ years

of hands‑on experience in

IBM AIX and pSeries administration

  • Deep understanding of

IBM AIX OS and Power Systems architecture

  • Strong experience with

PowerVM, VIOS, HMC

  • Excellent troubleshooting skills for

OS and hardware issues

  • Strong scripting skills (

Shell, Perl

)

  • Experience in

Preferred Qualifications

  • IBM Certifications in:

•

AIX System Administration

•

pSeries Hardware

•

Performance Tuning

•

Network Administration

  • Experience in

large, mission‑critical environments

  • Exposure to

Professional Attributes

  • Strong analytical and problem‑solving skills
  • Ability to diagnose and resolve issues quickly under pressure
  • Excellent communication and documentation skills
  • Proactive, detail‑oriented, and ownership‑driven mindset
  • Team‑oriented approach with mentoring and knowledge‑sharing attitude

Shift timing- 1:30 PM to 10:30 PM

We are an equal opportunity employer. All qualified applicants will be considered for employment without regard to caste, colour, creed, religion, gender, gender identity, sexual orientation, age, disability, HIV status, or any other status protected by law. Candidates with disabilities who require accommodations during the recruitment process are encouraged to contact our Talent Acquisition team to place a request.

JR013719

Not included in the source posting: what you'll do, benefits.

Skills

perl

Who can apply

The employer didn't state any visa, work authorization, citizenship or clearance requirements in this posting. Confirm with the employer before applying.

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