Technical Core Manager Resume

SUMMARY

Resourceful, technically savvy core mobile telephony systems specialist with demonstrated achievements with ability to collaborate with cross - functional teams, ensuring optimum functionality of mobile core network for better service.
Engaging, compelling project leader with hands-on expertise in maintaining, configuring, troubleshooting, modifying, and upgrading for TDMA, GSM, 3G / UMTS, 4G / LTE core.
Results-oriented with strong attention to details, taking ownership of impediments, and following through to resolution.
Work and make changes on live networks, handling critical issues, and gathering appropriate skills and tools to find answers to complex technical problems.
Fast learner, dependable, good communications skills, multitasking, embracing cutting edge technology to maximize system performance level and align to strategic business requirements.

Core Competencies:

Systems Configuration & Modification
Root Cause Analysis
Back Up & Recovery
New Technology & Services Implementation
Core Performance Improvement
Data Migration
Preventive Maintenance
Project Management
Technical Troubleshooting
Core Software Upgrades

TECHNICAL SKILLS

Applications & Tools: OSS / SMO, Winfiol, BMC Remedy, Alex, Skype, SRH Tool, Node Manager, (Basic Knowledge of Linux), Protocol Analyzer, Wireshark. MySQL

Telecommunications: TDMA, GSM/2G, UMTS / 3G, LTE / 4G, Data Transcript (D.T for MSC, GMSC, MSC-S, MSC-BC, HLR, MGW (Media Gateway), HSS, CSFB, EPC (Evolved Packet Core: Architecture, Interfaces, Principles and Call flow), CS Core nodes, 3GPP, Voice over LTE (VoLTE), Routing and Switching, 5G concept and architecture (Basic knowledge)

Signaling & Protocols: SIP, ISUP, MAP, CAP, CAMEL, INAP (CS1+), BSSMAP, RANAP, GCP, BICC, ISDN, DIAMETER, SIGTRAN, TCP/IP, UDP, SCTP

Troubleshooting: APG40, APG43, APZ 21240, APZ21250, APZ21260, CPP PLATFORM, AXE 810, MGW R5, MGW R6, IS, MSC Server Blade Cluster

Interfaces: IuCS, A, S6a, SGs, C, D, Gr, Gs, Cx

PROFESSIONAL EXPERIENCE

Confidential, Port-au-Prince, Haiti

Technical Core Manager

Responsibilities:

Upgraded Mobile Switch Center to new release, achieving $2,200K savings, and improving node performance to handle 15% more traffic, and avoiding purchase of new equipment.
Increased engineering team functions and productivity through performance review and delivered technical training and continuous coaching that expanded their skills by 15% over prior year.
Identified numerous core deficiencies and implemented technical solutions while guiding engineering team configuring and enhancing call service.
Optimized team schedule and reduced monthly overtime 10% through skillful planning during maintenance window.
Enhanced Core equipment efficiency by making continuous engineering, development, and evaluated the capacity on regular basis through procedures and process improvement.

Confidential, Port-au-Prince, Haiti

Technical Core Team Leader

Responsibilities:

Wrote, reviewed method of procedure (MOP) and test plans, documenting, and validating results.
Increased customer satisfaction through fast response time when troubleshooting issues and replacing faulty hardware and spare parts in GMSC, MSC, HLR, MGW, MSC-S, and MSC-S BC
Led complex projects, innovative services, and data migration with minimal impact on network.
Improved outgoing SMS success rate by 11% through root cause analysis and loading customized correction in MSC side, allowing our subscribers to send SMS even when some digits of SMS-C in personal phones were deleted.
Saved $200K by optimizing ENAP table in HLRs, permitting business to avoid purchasing new licenses and still define new USSD shortcodes for future requested projects.
Discovered core nodes were running with only 1 Network Time Protocol (NTP), preventing potential significant traffic loss and outage by integrating and configuring missing NTP, enabling redundant core nodes to operate safely.

Confidential, Port-au-Prince, Haiti

Senior Core Engineer

Responsibilities:

Conserved 40% on cost for maintenance of international traffic route by migrating from TDM to SIP, avoiding monthly fee per E1/T1
Solved issues and troubleshot by coordinating with several departments, including IN, BSS, VAS, RAN, Packet Core.
Saved business $45K by implementing new MSC, MGW and customer PBX into core network, a task typically handled by vendor as paid service, avoiding possible outages.
Integrated competitor operators in mobile network, troubleshooting interconnection issues.

Confidential, Port-au-Prince, Haiti

Core Engineer

Responsibilities:

Reduced $250K in company spending by achieving rollout of software update for all core nodes without vendor technical support with zero incident.
Integrated personal ring back tone (PRBT) as new service, providing more choices and improving customer satisfaction.

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