Electrical Engineer

Our systems listen, so others can be forearmed.

We are hiring Head of Machine Learning as we embark on the next critical phase of our Acoustic Detection product roadmap.

Arcani takes its name from the Arcani of Roman Britain—elite scouts known for their agility, intel and mobility. Today, we’re building the modern equivalent—sensor scouts designed to detect and protect, giving defenders the edge.

The Role

The Electrical Engineer will be responsible for the design, development, integration and testing of electrical and electronic systems used within ARCANI’s products.

Working closely with our acoustics, machine learning, software and mechanical engineering teams, you will help transform prototypes into reliable, manufacturable and field‑ready systems.

The role will cover power systems, electrical architecture, component selection, wiring, PCB development, sensor integration, communications hardware and environmental testing.

Key Responsibilities

• Design and develop electrical architectures for ruggedised, deployable sensing systems.
• Develop power distribution, battery management, protection and voltage regulation solutions.
• Design, review and test printed circuit boards and associated electronic assemblies.
• Select suitable components, connectors, cables and electrical interfaces for defence and outdoor environments.
• Integrate microphones, processors, radios, batteries, antennas and other sensors into complete systems.
• Produce electrical schematics, wiring diagrams, cable schedules, bills of materials and technical documentation.
• Develop wiring looms and support the design of repeatable production and assembly processes.
• Evaluate power consumption and optimise systems for extended battery‑operated deployment.
• Support the integration of NVIDIA Jetson platforms, microcontrollers and embedded computing hardware.
• Diagnose electrical faults during prototype development, environmental testing and field trials.
• Conduct bench testing, verification, validation and design reviews.
• Support electromagnetic compatibility and electromagnetic interference testing and mitigation.
• Design systems with appropriate protection against reverse polarity, overcurrent, overvoltage, electrostatic discharge and environmental conditions.
• Work with mechanical engineers to ensure appropriate packaging, cooling, ingress protection and connector placement.
• Work with software and machine‑learning engineers to define hardware interfaces and system requirements.
• Support suppliers and manufacturing partners during component sourcing, assembly and production.
• Identify component obsolescence, supply‑chain risks and appropriate alternative components.
• Support product certification, compliance and technical assurance activities.
• Attend field trials and demonstrations to support system deployment, troubleshooting and performance evaluation.
• Contribute to engineering planning, risk management and continuous product improvement.

Essential Skills and Experience

• Degree or equivalent practical experience in Electrical Engineering, Electronic Engineering or a related discipline.
• Experience designing and integrating electrical or electronic systems.
• Strong understanding of analogue and digital electronics.
• Experience with power supplies, DC power distribution, batteries and voltage regulation.
• Ability to create and interpret schematics, wiring diagrams and technical drawings.
• Practical experience using laboratory equipment such as oscilloscopes, multimeters, power supplies and logic analysers.
• Experience with PCB design, review, assembly or testing.
• Strong fault‑finding and diagnostic skills.
• Experience integrating embedded processors, microcontrollers, sensors or communications hardware.
• Understanding of grounding, shielding, signal integrity, noise reduction and EMC principles.
• Ability to select components based on electrical performance, environmental requirements, cost and availability.
• Comfortable building, soldering, modifying and testing prototype systems.
• Ability to communicate clearly and work effectively across multidisciplinary engineering teams.
• Strong attention to detail and a structured approach to engineering documentation.

Desirable Skills and Experience

• Experience developing products for defence, aerospace, robotics, autonomous systems or other safety‑critical sectors.
• Experience with NVIDIA Jetson hardware or similar edge‑computing platforms.
• Experience integrating microphones, audio electronics or acoustic sensing equipment.
• Knowledge of battery technologies, battery management systems, solar power or low‑power product design.
• Experience with ruggedised connectors, cable assemblies and military‑style batteries.
• Familiarity with communication technologies such as Ethernet, USB, UART, CAN, LoRa, Wi‑Fi, LTE or mesh radios.
• Experience with KiCad, Altium Designer, OrCAD or similar electronic design tools.
• Experience designing systems for IP‑rated enclosures and harsh operating environments.
• Familiarity with environmental and EMC standards, including relevant defence or commercial standards.
• Experience preparing products for manufacture and supporting contract manufacturers.
• Knowledge of design for manufacture, design for assembly and design for test principles.
• Experience with rapid prototyping, additive manufacturing or mechanical‑electrical integration.
• Understanding of UK defence procurement, security requirements or export‑controlled technology.

Personal Attributes

• Hands‑on, practical and comfortable working with early‑stage technology.
• Able to move between detailed technical design and wider system‑level problem solving.
• Comfortable operating in a fast‑moving startup environment.
• Proactive and capable of taking ownership of engineering challenges.
• Methodical when documenting, testing and validating designs.
• Collaborative and able to work with specialists across hardware, software, acoustics and machine‑learning.
• Motivated by developing technology that has a meaningful defence and security impact.

Security and Eligibility

Due to the nature of ARCANI’s work, candidates must be eligible to work in the relevant jurisdiction and may be required to obtain UK security clearance. Some projects may also be subject to nationality, export‑control or customer‑specific security restrictions.

What ARCANI Offers

• The opportunity to work on cutting‑edge counter‑UAS and passive sensing technology.
• Direct involvement in product design, field trials and deployments.
• Significant responsibility and influence over ARCANI’s electrical engineering capability.
• Close collaboration with experienced engineers, scientists and defence end users.
• The opportunity to help move a proven prototype into scalable production and operational deployment.
• A fast‑moving, mission‑focused environment with considerable scope for professional growth.

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