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Maria Ericka Villarta

@mariaerickavillarta

Core Network Specialist at DOCOMO PACIFIC working across VoLTE, mobile core interfaces, and network node integration.

At DOCOMO PACIFIC, I work as a Core Network Specialist on IMS Core (VoLTE), mobile core interfaces, and network node integration.

My work includes mobile circuit and packet switching, routing and translations, and IREG testing across IR24, IR35, IR27, IR32, and IR50. I previously worked as a Mobile NOC Switch Operator at DOCOMO PACIFIC.

Earlier, I worked in software quality assurance at OpenText and in quality assurance and quality control at Geodata Systems Technologies, Inc. I studied Information Technology at STI College Global City, where I graduated Cum Laude.

Experience

Work history, roles, and key accomplishments

Current

Core Network Specialist

Current

DOCOMO PACIFIC

Nov 2018 - Present (7 years 11 months)

- IMS Core (VoLTE)
- Diameter Protocols (S6a, Gx, Gy, SWx, Rx, Cx)
- SAE/4G Core Interfaces ( S1, S1-MME, SGs, S11, S5/S8, SGi)
- 3G Core Interfaces ( Iu, Iub, IuCs, IuPS, Ranap)
- SS7 (MAP, ISUP, CAMEL,TCAP)
- Mobile Circuit Switching, Routing and Translations.
- Mobile Packet Switching, Integration and Implementation.
- IREG Testing (IR24, IR35, IR27, IR32, and IR50).
- Integration of Network No

Mobile NOC Switch Operator

DOCOMO PACIFIC

Jun 2017 - Nov 2018 (1 year 5 months)

Worked as Mobile NOC Switch Operator at DOCOMO PACIFIC.

Software Quality Assurance

OpenText

Aug 2015 - Oct 2016 (1 year 2 months)

Worked as Software Quality Assurance at OpenText.

Quality Assurance/Quality Control

Geodata Systems Technologies, Inc.

Jun 2014 - Jul 2015 (1 year 1 month)

Worked as Quality Assurance/Quality Control at Geodata Systems Technologies, Inc..

XML Operator

NewspaperDirect Production Asia Incorporated

Nov 2013 - Feb 2014 (3 months)

Worked as XML Operator at NewspaperDirect Production Asia Incorporated.

Education

Degrees, certifications, and relevant coursework

STI College Global City

Bachelor of Science (BS), Information Technology

2010 - 2014

2014-Cum Laude, Rank 2nd in the whole BS Information Technology Graduating Class of 2014, STI College

2014-3rd Runner up Think Quest Quiz Bee, Cluster Level Competition
2013-2nd Runner up IT Quiz Bee, School Level Competition
2013-Dean’s Lister: 1.18
2013-STI College Global City Math & Science Club 4th Year Representative
2012-STI College Global City Global Link News Editor
2012 -STI College Glob