Tech stacks for DevOps Engineer

Currently I am thinking what kinds of technologies stacks a professional DevOps engineer should own? In other words, what kind of tech statcks can empower DevOps engineer to handle their infrastructures/development issue?

Let’s see a famous picture, 

engineered-for-oracle-1352069Basically, a DevOps engineer should be able to handle,

1. Application issue – administration, applications build/release, etc.

2. Middleware – administration, deployment, etc.

3. Database – administration, internal tools, etc.

4. OS – MSWins, Linux, Unix, etc.

5. Virtualization – Templatizes.

Currently my technologies stacks:

1.     Oracle OCA/OCP certificates – Database

2.     WebLogic Administration Certificate – Middleware

3.     SCJP  certified – Sun Certified Java Programmer –  Language

4.     SCWCD certified – Sun Certified Web Component Developer – Web

5.     EBS AppsDBA Certified –  Apps Administration

6.     LabManager, VirtualBox experiences

This stacks ensure that I can handle my daily routine/urgent issues very timely and precisely. I think I can enhance myself in AWS, cloud services, etc.


Process of killing an exam in general:

1. Get oral approval from your immediate manager. (You need to convince s/he that your exam will benefit your daily work).

2. Prepare the exam.

3. Try to apply voucher from

4. Contact local exam agent to take exam. If you have a voucher, you can have 30% discount.

5. Pass the exam.

6. Get reimbursed with your exam transcript and exam receipt.


How to prepare: 

OCA (it is prerequisite of OCP) :

OCP (it is prerequisite of AppsDBA):



SCJP (it is prerequisite of SCWCD):




OCA/OCP Oracle Database 11g All-in-One Exam Guide with CD-ROM: Exams 1Z0-051, 1Z0-052, 1Z0-053 (Oracle Press)

For WebLogic:

Oracle WebLogic Server 11g Administration Handbook (Oracle Press) (Osborne Oracle Press Series)

For AppsDBA:

(Going thru EBS 12.1 Administration doc is good enough).


SCJP: Sun Certified Programmer for Java Platform Study Guide: SE6 (Exam CX-310-065)


SCWCD Exam Study Kit: Java Web Component Developer Certification