Sr. Wireless Systems Engineer – Satellite BLE Positioning

Hubble Network Inc.; Seattle (WA); On-site; USD 128,000 - 286,000; Full time

Benefits offered by this job

Health, dental, vision insurance

Unlimited PTO

Commuter benefits

Learning & development allowance

Wellness stipend

Sabbatical program

Cutting-edge space tech

Job summary

Hubble Network is seeking a Sr. Wireless Systems Engineer in Seattle, WA, to advance our satellite-based BLE positioning system.

You will split time between perfecting location estimation accuracy and pursuing forward-looking research on a satellite downlink beacon for time and position estimation. Ideal candidates bring 10+ years in wireless systems, strong signal processing and geolocation expertise, and a collaborative mindset to push ideas from concept to production in a fast-paced,

Qualifications

• Bachelor’s degree in Electrical Engineering, Computer Engineering, or related field; Master’s or PhD highly preferred
• Deep grounding in communication theory and signal processing (channel estimation, equalization, timing/frequency recovery, coding/error correction)
• Experience with geolocation/positioning algorithms (TDOA, FDOA, multilateration, or similar) is a strong plus
• Strong knowledge of wireless communications fundamentals (FSK, OFDM, MIMO, spread spectrum, etc.)
• Familiarity with existing protocols (5G/LTE, 802.11 variants, Bluetooth/BLE) as reference points
• Proficiency in MATLAB and/or Python and/or C/C++ for modeling, simulation, and algorithm prototyping
• Comfort taking research to hands-on validation: lab bring-up, RF test equipment (spectrum analyzer, signal generator, oscilloscope, logic analyzer), FPGA/SoC prototyping
• Ability to work independently across both incremental optimization work and open-ended exploratory research
• Strong written and verbal communication skills
• Comfort in a fast-paced, early-stage environment, including availability for extended hours around critical milestones

Responsibilities

• Improve the accuracy and reliability of location estimation algorithms for BLE-to-satellite links — timing recovery, Doppler/frequency estimation, multilateration, and error correction
• Characterize and model dominant error sources (satellite ephemeris, oscillator drift, propagation effects, multipath, receiver noise) and prioritize which to attack first
• Build and refine link and geolocation models to validate improvements before they hit hardware or flight software
• Design experiments — simulation, emulation, and over-the-air — to measure real-world positioning accuracy against theoretical bounds
• Work with flight software and ground infrastructure teams to translate algorithm improvements into deployed accuracy gains
• Research and prototype algorithms for a satellite downlink beacon that terrestrial devices could use to independently estimate time and position
• Model link budgets, signal design trade-offs, and expected accuracy for a downlink-based approach versus today’s uplink architecture
• Run early feasibility studies and go/no-go experiments to determine whether and how a downlink beacon could be integrated into the network
• Document findings and present them in design reviews to inform whether this becomes a funded roadmap item

Skills

Signal processing

Geolocation algorithms

Wireless communications

MATLAB

Python

C/C++

Lab bring-up

Education

Bachelor’s degree in Electrical Engineering or related

Master’s or PhD highly preferred

Tools

MATLAB

Python

C/C++

RF test equipment

Job description

Hubble Network is seeking a Sr. Wireless Systems Engineer in Seattle, WA, to advance our satellite-based BLE positioning system.

You will split time between perfecting location estimation accuracy and pursuing forward-looking research on a satellite downlink beacon for time and position estimation. Ideal candidates bring 10+ years in wireless systems, strong signal processing and geolocation expertise, and a collaborative mindset to push ideas from concept to production in a fast-paced,