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Hire Oswaldo H.

Mexico

Aerospace Engineer | M.Sc. Telecommunications | RF Link Budget, GNSS Evaluation & SDR Prototyping | HAPS/NTN Specialist

Profile Summary

Aerospace engineer and telecommunications M.Sc. specializing in RF link design, GNSS performance evaluation, and SDR-based system prototyping for UAV, satellite, and HAPS/NTN applications. I build the tools and analyses that turn theoretical RF system requirements into validated, deployable hardware—not just reports. My core technical work spans three areas: ▸ RF Link Budget & System Design End-to-end link budget analysis for UAV data links, satellite downlinks, HAPS payloads, and emerging NTN architectures (LEO constellations, aeronautical coverage). I developed a link budget calculation API currently being commercialized for use by RF engineers in early-stage system trade studies. My M.Sc. thesis focused on radiocommunication link design for High-Altitude Platform Systems (HAPS) in 5G networks. ▸ GNSS Antenna & Receiver Evaluation Hands-on A/B evaluation of GNSS modules (u-blox MAX-M10S, multi-constellation receivers) and GNSS/INS sensors (VectorNav VN-200) for UAV applications. Custom Python tooling for CEP analysis, deviation metrics, skyplot generation, UART health diagnostics, and constellation-specific performance characterization. ▸ SDR Development & RF Interference Testing GNU Radio flowgraph design across USRP B200, HackRF One, and BladeRF platforms for RF interference characterization, signal generation, and receiver susceptibility testing. Experience with multiple interference profiles (swept, Gaussian noise, CW) and FPV/UAV downlink evaluation. What I can help you with: - Design or review link budgets for UAV, satellite, or NTN systems - Evaluate GNSS receiver performance from logged data (u-center, post-processing) - Build custom Python tools for RF/GNSS data analysis and visualization - Develop GNU Radio flowgraphs for SDR-based signal generation or analysis - Translate RF system requirements into measurable test procedures - Technical writing: whitepapers, system documentation, trade studies Stack: Python (NumPy, pandas, matplotlib), GNU Radio, MATLAB, u-center 2, USRP/HackRF/BladeRF SDR platforms, Git. Looking for projects where strong fundamentals in RF systems engineering and a builder's mindset add measurable value. I prioritize clear scope, honest timelines, and deliverables you can actually use.

Subject Matter Expertise

• ☆ Electrical Engineering
• ☆ Electronics Engineering
• ☆ Signal Processing
• ☆ Telecommunications Engineering
• ☆ Telecommunications
• ☆ Radio Broadcasting
• ☆ Wireless Communication
• ☆ Python
• ☆ Matlab
• ☆ Technical & Scientific Writing
• ☆ Release Notes
• ☆ Experimental Protocols
• ☆ SOP & Protocol Writing
• ☆ Spec Sheets
• ☆ Case Studies
• ☆ Science Communication

Services

• Research
• Consulting
• Product Development

Research Technology Scouting, Gray Literature Search, Scientific and Technical Research

Consulting Scientific and Technical Consulting

Product Development Recipe Development, Material Sourcing, Product Validation, Product Compliance , Concept Development, Prototyping, Reverse Engineering

Work Experience

RF & Product Test Engineer

NDA

May 2025 - Present

Lab assistant

Centro de Investigación Científica y de Educación Superior de Ensenada

August 2022 - 2024

Education

M.Sc. in Electronics and Telecommunications Sciences (Telecommunications track) (Applied Physics)

Centro de Investigación Científica y de Educación Superior de Ensenada

August 2022 - August 2024

Aerospace Engineering (Faculty of Engineering Sciences and Technology)

Universidad Autónoma de Baja California

August 2017 - December 2021

Certifications

• Lean Six Sigma White Belt

  INTERNATIONAL LEAN SIX SIGMA

  August 2025 - Present

• 5G and Non Terrestrial Networks

  Mpirical

  April 2024 - Present

Publications

DISSERTATION THESIS

Oswaldo Hernández Arrambide, Oswaldo Hernández Arrambide(2025). Diseño de enlaces de radiocomunicación sobre sistemas de plataformas de gran altitud (HAPS) para aplicaciones en redes 5G . Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California.