Luis Alejandro Carreño Diaz
Luis Alejandro Carreño Diaz

Senior RF & Network Operations Engineer

Actively looking · Member since 10 Jun 2026
Message
Location
Colombia
Desired salary
Unspecified
Work preference
Full Time
Experience level
Not set

About

Professional summary

I am a Telecommunications Engineer with over 10 years of experience specializing in LTE, 5G, and FTTH network operations, performance analysis, and technical troubleshooting across Latin America. Throughout my career, I have developed a strong expertise in remote incident diagnosis, root cause analysis, KPI monitoring, and managing escalation processes with R&D teams and external vendors. I am adept at coordinating cross-functional technical teams and collaborating with vendors and field partners to resolve complex service-impacting issues efficiently.

My technical knowledge encompasses 3GPP standards, LTE/5G radio and core architecture, RF optimization, and IP networking fundamentals. I am proficient with network diagnostic tools such as Wireshark and Linux command line for log review. Additionally, I have advanced skills in Power BI and SQL, which I use to create performance reporting dashboards and conduct trend analysis to support operational decision-making.

In my recent roles, I have led teams across Colombia and Argentina, supporting network deployment, optimization, and troubleshooting activities. I have been responsible for designing and automating operational dashboards, producing structured technical reports, and ensuring compliance with national telecom regulations. I am also experienced in mentoring junior engineers and fostering knowledge sharing within teams.

I am continuously improving my English language skills to better engage with international teams and technical documentation. My certifications in Scrum Master and Agile Coach further complement my ability to work effectively in dynamic, collaborative environments. I am passionate about leveraging my technical and leadership skills to contribute to the advancement and reliability of modern telecommunications networks.

I am eager to bring my expertise in network operations, performance analysis, and team coordination to a challenging role where I can continue to grow professionally and deliver impactful results.

Skills

7 capabilities

Experience

Career history

Quality & Business Support Coordinator DIRECTV Latin America (Vrio)

Monitored and analyzed LTE, 5G, and FTTH KPIs across regional LATAM alliances, identifying anomalies and coordinating corrective actions with internal teams and external vendors. Performed root cause analysis (RCA) on service-impacting issues and managed technical escalation workflows to ensure SLA compliance. Designed and automated operational dashboards in Power BI with ETL data pipelines, improving real-time visibility of network performance trends. Produced structured technical reports and post-mortem documentation for incident tracking and continuous improvement.

Access Network Planning & Optimization Coordinator DIRECTV Latin America (Vrio)

Led technical teams across Colombia and Argentina supporting LTE, 5G, and FTTH network deployment, optimization, and troubleshooting of service-impacting incidents. Coordinated remote troubleshooting sessions with field engineers and vendors, analyzing logs, KPIs, and RF parameters to isolate and resolve network faults. Managed incident escalation workflows, prioritizing critical outages and maintaining structured communication with technical stakeholders and vendor partners. Supported deployment readiness and post-implementation performance validation for new network sites, coordinating end-to-end service acceptance activities. Mentored junior engineers in troubleshooting methodologies, KPI interpretation, and 3GPP LTE/5G standards. Produced regulatory reports for MinTIC, ANE, and CRC, ensuring 100% compliance with national telecom requirements.

Access Network Planning & Optimization Engineer DIRECTV Latin America (Vrio)

Planned, deployed, and optimized LTE TDD networks in Colombia, analyzing Drive Test results and RF parameters (RSRP, SINR, PCI, MCS, Throughput) to improve coverage, capacity, and mobility. Optimized RF parameters including handovers (intra/inter-frequency), neighbor lists, PCI planning, power control, and load balancing. Used Infovista Planet, DataManager, and TEMS for performance analysis, coverage simulation, and optimization planning. Collaborated with deployment and core network teams on new site integration, supporting end-to-end service validation and commercial coverage acceptance.

RF LTE Supervisor DIRECTV Latin America (Vrio)

Supervised new LTE site on-air activities, Drive Tests, physical optimizations, and technical acceptance validations. Analyzed RF parameters and KPIs to certify coverage and service quality of new network sectors entering commercial service.

RF Engineer Applus Norcontrol (TIGO)

Performed 2G, 3G, and 4G network optimization through Drive Test and Walk Test analysis using TEMS, adjusting RF parameters and antenna configurations to improve network quality. Produced technical reports with KPI analysis and recommendations coordinated with vendor teams.

Field Network Support Engineer REDCOM Ltda.

Executed nationwide technical validations for LAN connectivity, structured cabling, routers, modems, and end-user equipment for the Compartel government program. Performed on-site troubleshooting of network connectivity issues and validated site readiness for service activation.

Education

Learning history

Universidad del Norte

Master’s Degree in Telematics & Telecommunications

Universidad del Norte

Specialization in Telecommunications Systems

Universidad Autónoma del Caribe

Bachelor of Electronic & Telecommunications Engineering

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