JULIO REYES
Riverside,CA
Summary
Validation Engineer with proven skills in wireless market dynamics, product details, and network analysis tools; along with expertise in creating and implementing unique strategies to optimize operational efficiency while significantly achieving goals. Equipped with outstanding leadership aptitude in performing multiple responsibilities and adeptness in facilitating quality inspection and testing activities in fast-paced and challenging work environments. Multifaceted, innovative, and meticulous professional with extensive experience in mobile device testing; complemented with strong knowledge of wireless air interfaces including 5G, LTE, WCDMA, UMTS, CDMA and GSM
Experienced with optimizing system performance and reliability through detailed analysis and proactive solutions. Utilizes root cause analysis and corrective actions to maintain high operational standards. Knowledge of cross-functional teamwork and technical troubleshooting ensures consistent system improvements.
Overview
19
19
years of professional experience
1
1
Certification
Work History
Sr. Test Engineer
Nextivity Inc.
01.2023 - 01.2024
- As an early adapter of embedded ASIC repeater device, I have worked closely with the hardware and software teams
- We collaborated with carriers around the world as well with the FirstNet team to optimize our device to be a first-class product for first responders and enterprise.
- Test embedded software to make sure that the device would work with different carriers that support different bands
- Used Spectrum analyzer and call boxes 4G and 5G to test the feature of the reaper's capabilities
- Configure 5G Anritsu call box for new and R&D projects to validate new products for carrier
- Work with R&D for new product verification
- Tested all lineup products with all the tools that Nextivity has to offer on the Portal available to customer to monitor their systems
- Tested API against software engineer requirements to meet the customer's needs
- Support customer with complex issues and configurations
- Part of a team to improve our current reaper product line and to collaborate with the leadership for future products
Sr. Quality and Sustaining Engineer
Airgain
02.2022 - 03.2023
- As an adapter of power Class 1 device, I have worked closely with the RAN vendors (Nokia/Ericsson) on AT&T's FirstNet as well with AT&T's core infrastructure network to help optimize and gather statistical data. We collaborated with AT&T as well with the FirstNet team to optimize our device to be a first-class product for first responders.
- Support Internal and External Customer Products
- Worked closely with AT&T RAN to make our product work with enterprise solutions
- Configure 5G Anritsu call box for new and R&D projects to validate new products for carrier certification
- Work with leadership team to make decisions on product realization and current improvements for existing product
- Post process Accuver logs (QXDM API) for findings in the field to report to leadership and make decision based on my findings
- Trained internal department on basic protocol process call flow
Staff Engineer
Assured Wireless
01.2020 - 01.2022
- As the pioneer of Power Class 1 device, I have worked closely with the RAN vendors (Nokia/Ericsson) on AT&T's FirstNet network to help optimize and gather statistical data. We collaborated with AT&T as well with the FirstNet team to offer a device that their customers need for first responders.
- Helped our customers through the certification process for both PTCRB and AT&T certification
- Worked with Sierra and Cradlepoint in understanding the benefits of power class 1 while integrating our solution
- Conducted field trials to gather data to understand the behavior of the device on the network
- Assisted our customers to test against AT&T's certification process
- Lead the technical aspect of a beta trial across the US for first responders
- Point of contact for the beta trial technical support
- Helped resolve issues in the field with customers configuration
- Meet our customer needs and point of contact for all pre and post technical issues
Senior Lab Engineer
Tech Mahindra Americas
01.2019 - 01.2020
- Assisted customers in defining their product requirements in preparation for carrier acceptance testing. This included AT&T, T-Mobile, and Verizon. Oversaw PTCRB and GCF day-to-day activities for major customers testing RF and Protocol Conformance.
- Assisted customer to understand carrier's acceptance certification process
- Interacted with customers whenever there were issues with their products
- Helped them find a solution to get their device certified by the carriers
- Setup one of the first 5G lab to be accredited for PTCRB and carrier testing
- Collaborated with engineers to solve device issues by troubleshooting and going over logs
- Collaborated closely with carrier to be an accredited lab for AT&T and Verizon in the 5G space
- Work hand in hand with Keysight to materialize both 5G Protocol and RF systems
Senior Field Test Engineer
L&T (Intel)
01.2018 - 01.2019
- As a FE I was assigned the task to gather status on the chipsets performance in the field for Licensed Assisted Access (LAA). This chipsets was capable of Rel 14 and supported CBRS as well as other technologies.
- Used a Congatec configuration for testing
- Used Intel's proprietary diagnostic monitoring tool to capture logs
- Analyze the data to make sure that the device will be executing data throughput in LAA mode
- Created reports for upper management to see the progress of the chipsets performance
- Conducted field tests on electronic components to ensure performance and reliability standards.
- Collaborated with cross-functional teams to troubleshoot and resolve technical issues during testing phases.
- Developed detailed test plans and documentation for various product evaluations and assessments.
- Analyzed test data to identify trends, anomalies, and areas for improvement in product design.
Senior Validation Lab Manager (AT&T Certified Lab)
LG Electronics, Inc.
01.2005 - 01.2017
- Facilitated AT&T and T-Mobile validation testing within a conductive laboratory environment, including network selection, call processing, femtocell, device aggression management, SIM card protocol, AMR, TTY, RF Parametric as well as acoustical and VoLTE audio performance
- Reduced system testing time from 8 weeks to 5 weeks
- Successfully enhanced automation success rates for the Anite SAS system through batch file optimization and constant improvement of current scripts and automation techniques
- Increased testing throughput of SAS system by 70%
- Oversaw laboratory operations to ensure compliance with safety and quality standards.
- Developed and implemented protocols for efficient sample processing and analysis.
- Collaborated with cross-functional teams to drive product development initiatives.
- Streamlined workflow processes to improve turnaround times for testing results.
- Ensured compliance with regulatory standards by staying up-to-date on industry best practices and adjusting internal policies as necessary.
Senior Field Engineer
Lg Electronics Usa
01.2007 - 01.2009
- Oversaw all testing activities for AT&T, T-Mobile Sprint and VZW Wireless from the Safe for Network (SFN) phase to technical acceptance (TA); participated in Field Engineer II responsibilities when needed
- Provided strategic leadership to the Field Test Team, which resulted in recognition by Verizon Wireless as a top vendor test team; thus, building a greater trust in capabilities and test results
- Preserved LG's reputation for new model products by identifying major hardware issues prior to sales launch
- Secured and managed a library of current Verizon Wireless and company's internal requirements
- Acted as the single point of contact for the Verizon and AT&T CPE Field Team and management
- Presided over training to level I and II field engineers, as well as field team conference calls with Network engineers
- Held responsibility in post processing logs from failed and suspect test cases, and in identifying 1st tier root cause
- Utilized advanced diagnostic tools to analyze system performance, identifying areas for optimization and cost reduction.
- Prepared detailed reports on project progress and outcomes, facilitating informed decision-making for stakeholders.
- Developed strong relationships with vendors, negotiating favorable pricing terms improving overall profitability.
- Enhanced client satisfaction by providing timely updates on project progress and addressing concerns promptly.
- Developed and implemented process improvements that increased operational efficiency and reduced downtime.
Support Engineer
Lg Electronics Usa
01.2005 - 01.2007
- Supported VZW Caribbean partners with technical issues and build custom made software for them for Spanish speaking customers.
- Successfully standardized log file collection by streamlining QXDM workspace for all Verizon Wireless field test activities, thus producing more consistent results and minimizing retesting due to corrupt logs by 30%
- Conducted high-level root cause analysis to identify device performance issues through Qualcomm QXDM and Windcatcher tools
- Assumed full accountability in coordinating test dates, travel arrangements, and temporary staffing requests; developing detailed daily progress reports; and maintaining laptop and library of field test tools
- Functioned effectively as the company's representative to customers in a professional and technically competent manner
- Achieved Top 5% performer for 2 consecutive years
- Designed custom solutions for high-value clients, ensuring client retention and satisfaction.
- Coordinated with vendors to ensure timely delivery of hardware replacements, reducing system downtime.
Education
Telecommunication Management - Telecommunications
DeVry University
Long Beach, CASkills
Microsoft Windows XP and 7
- Microsoft Office Suite (Word, Excel, PowerPoint, and Outlook)
- Qualcomm QXDM, QCAT, and QPST
- Android Debug Bridge (ADB) Tools
- Wireshark
- Xceed WindCatcher
- Comprion IT³ Prove and Move
- Accuver XCAL and XCAP
- Failure mode analysis
- Structural analysis
- Manufacturing process validation
- Advanced troubleshooting
- Teamwork and collaboration
- Problem-solving
- Time management
- Attention to detail
- Responsible and dependable
- Problem-solving abilities
- Multitasking Abilities
- Excellent communication
- Critical thinking
- Organizational skills
- Team collaboration
- Adaptability and flexibility
- Product troubleshooting
- Safety protocols
- Task prioritization
- Self-motivation
Accomplishments
- Supervised team of 6 staff members.
- Achieved automation reduction by introducing internal automation for carrier scripts test cases.
- Documented and resolved radom product testing which led to product delivery successfully with low product issues by 35%.
- Resolved product issue through consumer testing.
Certification
- Certified Product for first responders, power class 3 AirGain - 6 months
Training
- AT&T Validation Laboratory Summit – Introduction to Internet of Things (IoT) AT&T
- Introduction to LTE Mark Sealy Consulting
- LTE Innovation Summit
- Introduction to UMTS and HSDPA Rohde & Schwarz
- IS-856-A and Beyond Mobile Systems Consulting
- CDMA, Technology - Qualcomm
- Meeting the CDMA Challenge Hewlett Packard
- IS-95 A/B and Beyond
- Intro to General Packet Radio Service (GPRS)
- Time Division Multiple Access TDMA IS-136
- Overview of Global System for Mobile Communication (GSM) CDMA Wireless Academy
- 3G CDMA 2000 Implementation and Operational Issues Dr. Simo
Additional Relevant Experience
- Cingular (now AT&T) Base station Tech
- Ericsson Radio Network Engineer
Languages
Spanish
Native or Bilingual
Timeline
Sr. Test Engineer
Nextivity Inc.
01.2023 - 01.2024
Sr. Quality and Sustaining Engineer
Airgain
02.2022 - 03.2023
Staff Engineer
Assured Wireless
01.2020 - 01.2022
Senior Lab Engineer
Tech Mahindra Americas
01.2019 - 01.2020
Senior Field Test Engineer
L&T (Intel)
01.2018 - 01.2019
Senior Field Engineer
Lg Electronics Usa
01.2007 - 01.2009
Senior Validation Lab Manager (AT&T Certified Lab)
LG Electronics, Inc.
01.2005 - 01.2017
Support Engineer
Lg Electronics Usa
01.2005 - 01.2007
Telecommunication Management - Telecommunications
DeVry University