RF / Wireless Communications Engineer
R&D
Kyiv, Ukraine
Full-time
The RF / Wireless Communications Engineer is responsible for the end-to-end communication and video surveillance system of the NRC: from cameras and video pipeline on the platform to stable video/telemetry/control transmission to the operator module.
The role includes designing the architecture of the main and backup channels (digital broadband, mesh, LTE as needed, ELRS as a control backup), ensuring immunity to interference/EW, optimizing latency and throughput, as well as standardizing and documenting solutions for serial production, integration and field use.
Сore responsibilities
Key Responsibilities:
System Architecture:
Communications + Video (End-to-End)
Design the target communication architecture for the NRC:
Main digital broadband channel (mesh/broadband radio) for video + data
Backup control channel based on ELRS (ExpressLRS) (or agreed equivalent)
Switching/degradation logic: video degrades first, control survives longest
Define requirements for airborne (on NRC) and ground (Operator Control Unit) components, including interfaces and compatibility.
RF Engineering & Wireless Optimization
Selection of bands, channel parameters (frequencies, bandwidth, modulation/coding, power).
Antenna solutions: types, platform placement, MIMO/diversity, cables/connectors, losses and EMI.
Link budget, coverage planning, multipath/building/terrain work.
Ensuring stable operation in conditions of interference and mutual interference between systems (video/control/GNSS).
Digital Communications (Packet-based)
Configuration and optimization of digital channels:
latency/jitter/packet loss
QoS / traffic prioritization (control > telemetry > video)
FEC / retransmission strategies (where applicable)
Support and integration of IP/non-IP solutions (depending on the stack).
Video System on UGV: Capture → Encode → Transport → Decode → Display
Responsibility for video as a system on the NRC:
camera requirements (type, placement, field of view, protection, interfaces)
selection/configuration of encoding (HW/SW), bitrates, profiles, GOP, low-latency modes
degradation policy (adaptive bitrate / fallback stream / reduced fps/resolution)
Providing target metrics:
video stability during movement
acceptable latency
Collaboration with embedded/software on video integration into UI/OCU and logging.
EW / Jam-resilience (taking into account the real field)
Design and test the system behavior during EW:
frequency strategies, hopping (where applicable)
redundancy and degradation profiles
“recovery” scenarios after link loss
Provide safe fail-safe modes in case of partial/complete loss of communication.
Documentation & Lifecycle Support
Preparation and support of:
RF schematics, frequency plans, configuration profiles
antenna/camera/cable layouts
setup instructions (production + field)
Certification/codification materials package (within your domain).
Key Competencies & Skills:
RF / Wireless Core
PHY/MAC, modulation, spectrum, link budget, antenna theory, EMI/EMC basics.
Practice with digital radio systems (broadband/mesh, low-latency links).
Digital Communications
Packet loss / jitter / latency trade-offs, QoS, FEC/ARQ, throughput tuning.
Basic understanding of IP networking (routing/bridging) is sufficient for integration.
Video Systems (for NRC)
Basics of video pipeline: capture → encode → transport → decode → display.
Understanding the impact of bitrate/codec/encoding parameters on latency and robustness.
Setting up low-latency profiles and degradation policies.
Field & System Mindset
Ability to work in the field, plan tests, collect data, and make engineering conclusions.
Systems thinking: “communication + video + platform + operator = one system”.
Documentation & Process
Discipline of documentation, standardization of configurations, clear acceptance criteria.
Ability to create materials that can be repeated in production and in the field.
Language Requirements:
Ukrainian - fluent
English - Upper-Intermediate (B2) or higher
Values Alignment:
Mission-first mindset and focus on platform stability
Responsibility for core RF solutions and their implications
Orientation to standards and intended operation
Willingness to work with complex system tasks
Clear and substantive interaction with adjacent engineering teams
What Success Looks Like After 6 Months:
After 6 months Ark has a reliable, repeatable communication and video system for a medium-sized logistics NRC:
Stable link + clear fallback
The main digital broadband channel stably transmits video+data in typical application scenarios.
The backup ELRS channel provides control in case of degradation/loss of the main channel.
The switching/degradation works predictably: video degrades in a controlled manner, control is maintained.
Measured performance
There are approved metrics and benchmarks: latency, range, recovery time, video stability.
There are standardized field test scenarios and protocols with telemetry/logs.
Production-ready state
RF / Wireless Communications Engineer
R&D
Kyiv, Ukraine
Full-time
The RF / Wireless Communications Engineer is responsible for the end-to-end communication and video surveillance system of the NRC: from cameras and video pipeline on the platform to stable video/telemetry/control transmission to the operator module.
The role includes designing the architecture of the main and backup channels (digital broadband, mesh, LTE as needed, ELRS as a control backup), ensuring immunity to interference/EW, optimizing latency and throughput, as well as standardizing and documenting solutions for serial production, integration and field use.
Сore responsibilities
Key Responsibilities:
System Architecture:
Communications + Video (End-to-End)
Design the target communication architecture for the NRC:
Main digital broadband channel (mesh/broadband radio) for video + data
Backup control channel based on ELRS (ExpressLRS) (or agreed equivalent)
Switching/degradation logic: video degrades first, control survives longest
Define requirements for airborne (on NRC) and ground (Operator Control Unit) components, including interfaces and compatibility.
RF Engineering & Wireless Optimization
Selection of bands, channel parameters (frequencies, bandwidth, modulation/coding, power).
Antenna solutions: types, platform placement, MIMO/diversity, cables/connectors, losses and EMI.
Link budget, coverage planning, multipath/building/terrain work.
Ensuring stable operation in conditions of interference and mutual interference between systems (video/control/GNSS).
Digital Communications (Packet-based)
Configuration and optimization of digital channels:
latency/jitter/packet loss
QoS / traffic prioritization (control > telemetry > video)
FEC / retransmission strategies (where applicable)
Support and integration of IP/non-IP solutions (depending on the stack).
Video System on UGV: Capture → Encode → Transport → Decode → Display
Responsibility for video as a system on the NRC:
camera requirements (type, placement, field of view, protection, interfaces)
selection/configuration of encoding (HW/SW), bitrates, profiles, GOP, low-latency modes
degradation policy (adaptive bitrate / fallback stream / reduced fps/resolution)
Providing target metrics:
video stability during movement
acceptable latency
Collaboration with embedded/software on video integration into UI/OCU and logging.
EW / Jam-resilience (taking into account the real field)
Design and test the system behavior during EW:
frequency strategies, hopping (where applicable)
redundancy and degradation profiles
“recovery” scenarios after link loss
Provide safe fail-safe modes in case of partial/complete loss of communication.
Documentation & Lifecycle Support
Preparation and support of:
RF schematics, frequency plans, configuration profiles
antenna/camera/cable layouts
setup instructions (production + field)
Certification/codification materials package (within your domain).
Key Competencies & Skills:
RF / Wireless Core
PHY/MAC, modulation, spectrum, link budget, antenna theory, EMI/EMC basics.
Practice with digital radio systems (broadband/mesh, low-latency links).
Digital Communications
Packet loss / jitter / latency trade-offs, QoS, FEC/ARQ, throughput tuning.
Basic understanding of IP networking (routing/bridging) is sufficient for integration.
Video Systems (for NRC)
Basics of video pipeline: capture → encode → transport → decode → display.
Understanding the impact of bitrate/codec/encoding parameters on latency and robustness.
Setting up low-latency profiles and degradation policies.
Field & System Mindset
Ability to work in the field, plan tests, collect data, and make engineering conclusions.
Systems thinking: “communication + video + platform + operator = one system”.
Documentation & Process
Discipline of documentation, standardization of configurations, clear acceptance criteria.
Ability to create materials that can be repeated in production and in the field.
Language Requirements:
Ukrainian - fluent
English - Upper-Intermediate (B2) or higher
Values Alignment:
Mission-first mindset and focus on platform stability
Responsibility for core RF solutions and their implications
Orientation to standards and intended operation
Willingness to work with complex system tasks
Clear and substantive interaction with adjacent engineering teams
What Success Looks Like After 6 Months:
After 6 months Ark has a reliable, repeatable communication and video system for a medium-sized logistics NRC:
Stable link + clear fallback
The main digital broadband channel stably transmits video+data in typical application scenarios.
The backup ELRS channel provides control in case of degradation/loss of the main channel.
The switching/degradation works predictably: video degrades in a controlled manner, control is maintained.
Measured performance
There are approved metrics and benchmarks: latency, range, recovery time, video stability.
There are standardized field test scenarios and protocols with telemetry/logs.
Production-ready state
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