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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