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AS400 Systems Administrator

Singapore Office JR009570

AS400 System Administrator

At Ensono, our purpose is to be a relentless ally, disrupting the status quo and unleashing our clients to Do Great Things! We enable our clients to achieve key business outcomes that reshape how our world runs. As an expert technology adviser and managed service provider with cross-platform certifications, Ensono empowers our clients to keep up with continuous change and embrace innovation.

Developing impactful solutions is something we do together at Ensono, because Ideas Start Here.  Great things happen when many voices are heard, and people are supported to run with their ideas.  On our teams, you will be backed by leaders with passion for our business.  This is a place where your ideas can Do Great Things.

We can Do Great Things because we have great Associates. The Ensono Core Values unify our diverse talents and are woven into how we do business.

Adventure starts here. Here you will be a part of a team that encourages you to master your craft, ask tomorrow’s questions today, and chart your own path.  Our Associates focus on client impact with curiosity and a feeling of relentless commitment.  You will support this mission in this role, where you will be doing the following:

About the role and what you’ll be doing: 

Are you passionate about Midrange IBM i (or commonly known as AS/400, iSeries)? Do you want to help set the direction and strategy for AS400 Support team? Are you motivated to work in a complex, diverse, and global environment? We are looking for an AS400 System Administrator to join our team and help us to:

  • Support the global AS400 platform
  • Deliver 1st to 3rd level service support as part of the Incident, Problem and Change Management process
  • Produce engineering and technical standards for AS400 platform
  • Provide infra-related support to the Application/Business Support team in managing their solutions which are currently hosted in the AS400 platform. (i.e., EuroPaladign for CH, Fusion Midas/Trust System in APAC, Olympic (EMEA), Paladign (UK), & GMI(ETD)
  • Prepare capacity and performance management services
  • Arrange support for AS400 Product Management
  • Handle License and Asset Management
  • Steer Infrastructure Solution Design
  • Manage continuous service improvement through automation, standardization, and process reviews.
  • Ensure that security and compliance requirements are met with the scope of agreed policies and standards.
  • Sign-Off ITSCM validation test plans and ensure the coordination with the business partners.

Your team

As an AS400 System Administrator, you will be instrumental in setting the direction and strategy for the Midrange AS400 infrastructure support across the globe and in designing and building solutions to automate the deployment, configuration, and upgrade of these systems. Teamwork is pivotal to our success; it plays a key role.

We want all new Associates to succeed in their roles at Ensono. That’s why we’ve outlined the job requirements below. To be considered for this role, it’s important that you meet all Required Qualifications. If you do not meet all of the Preferred Qualifications, we still encourage you to apply. 

Your experience and skills

You have:

  • Confidence and deep experience of OS/400 V7.2 or higher, IBM Power Systems, SAN Storage (V7000 and etc.), high availability systems (e.g., icluster, MIMIX, Vision Solutions and etc.)
  • Technical expertise on system configuration (SW & HW), HW & OS installations/upgrades including OS build, PTF planning and management.
  • Solid OS400 security management (User Profiles, Objects, system values & etc.)
  • Able to write and maintain scripts and automation utilities (CLP). Experience of high-level languages such as RPG, RPGLE (a bonus).
  • Experience on service-oriented architecture (SOA) and REST (representational state transfer) architecture.
  • Demonstrate knowledge on BRMS, Tape encryption (using SKLM), Tapeless solution (EMC Data Domain and etc.) and existing key management infrastructure.
  • Knowledge and experience on leading edge iSeries tools like PowerTech products, Q message monitor, RAMi, etc.
  • Experience on performance measurement, analysis, and amendments.
  • Passion for developing technical standards and maintaining good documentation
  • Ability to liaise with IT Security, IT Risk and GIA and external auditors on security/compliance related issues and vulnerabilities.
  • Previous experience working in complex infrastructure projects like Cloud Migration is a plus
  • Ability to work on 24 x 7 on-call support.

You are:

  • A committed and visionary team player with analytical and logical mind-set (you can solve problems like nobody’s business)
  • Well organized with an innate sense of how to prioritize across a complex environment
  • A hands-on person with natural instincts to support our customers
  • Curious, collaborative, and constantly interested in learning new things
  • Fluent in English and eager to work in an English-speaking global team
  • Able to work in a diverse and mature team and can collaborate and support other team members locally and globally


More career opportunities at Ensono

Explore additional openings with our team, and apply today.

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