Mission Critical Radio Development

I need a developer to create a mission-critical radio.

Essential Requirements:
- Experience in developing hardware devices, specifically communication devices.
- Expertise in radio frequency (RF) technology and protocols.
- Ability to integrate secure communication features.
- Familiarity with industry standards for mission-critical communication.

Ideal Skills:
- Background in telecommunications engineering.
- Experience with embedded systems.
- Strong problem-solving skills and attention to detail.
- Previous experience in a related industry (telecommunications, automotive, or healthcare).

Please provide a portfolio with relevant projects.