Hardware Development Engineer

We are seeking an exceptional, dynamic and ambitious hardware development engineer to join our team and design the electrical architecture for Calyo in-air 3D ultrasound sensing technology.

This is a role where the candidate will be responsible for contributing to the design and development process of both early and late-stage product development requirements, as well as validation and assessment activities for Calyo. The successful candidate will be a member of the technical team and will report directly to the CEO.

Listed below are the major responsibilities of the role and a brief description of some of the key tasks to be performed. This list is not exhaustive, and the candidate will be expected to be flexible towards working in a hands-on, small-team environment to develop the system.

Main Responsibilities

The candidate will be responsible for:

• Calyo system prototyping, validation, testing, PoC and component performance. This will require the construction of a support structure for a set of ultrasonic sensors (transmitters/receivers), as well as the circuitry necessary for signal amplification and analogue to digital conversion to interface with a digitizer (e.g. FPGA microcontroller) and a back-end system.
• Ultrasound platform hardware and software development. You will be required to contribute to the technical team effort to deliver an ultrasound hardware device platform capable of performing 3D imaging, suitable for SLAM (simultaneous localisation and mapping) and complex control tasks such as autonomous navigation.

In this role you will:

• Be responsible for electrical design, test and characterisation of system architectures (e.g. FPGA-SoC) in which the computational signal processing tasks are transferred from a dedicated computing device to an embedded system
• Establish and extend our system architectures, and define and integrate communication interfaces and protocols
• Design, implement, and debug analogue and digital circuits to support a variety of sensors
• Always be one step ahead by researching relevant hardware topics, e.g. μC, hardware components etc. to keep our technology at the forefront of innovation
• Perform experiments for, process and analyse the data from, and document and report on the results of internal testing
• Participate actively in team resource and project planning discussions
• Help to formulate software test cases and test plans to support software validation
• Propose and conduct experiments to evaluate and validate system performance
• Manage relationships with suppliers and external partners

Experience and Skill Set

As a minimum requirement, you should bring the following skills and experiences:

• Strong technical background. Educated to MSc or above in Electrical Engineering, Computer Sciences, or Robotics with 2+ years experience in low-level embedded architecture design, ideally in the automotive industry. You have prior experience with communication interfaces used in systems for robotics, automotive, or similar industries.
• Broad embedded engineering knowledge. You are a skilled PCB designer and know how to take hardware from design through bring-up to production. You know which chipsets to pick for a given task and you are comfortable deciding what should be built in-house vs. using existing components or outsourcing it. Ideally you have experience in programming C/C++ in embedded applications. You have knowledge of electrical analogue and digital circuits, RF, and audio/ultrasound frequencies.
• A team player. You take ownership and work with the team to deliver exceptional results. You are interested in the performance of the entire system across engineering disciplines. Strong analytical skills and a passion for technology are also expected. You are a self-starter and used to working in small businesses.
• Proven ability to build and iterate quickly. You have experienced product development in all of its stages and are comfortable in the earlier stages – moving from zero to one.
• Hands on. You are just as comfortable with a soldering iron as with a keyboard.
• Great communicator. Experience writing clear, concise, and detailed documentation. You are interested in the performance of the entire system across engineering disciplines, and your communication style facilitates that.

Ideally, you may also have these skills/experiences/attributes:

• Project leadership skills, with the ability to coordinate the activities of colleagues
• Deep knowledge of architectures like ARM Cortex M, STM32, or similar
• Experience working with ultrasound sensors, in particular phased arrays
• Experience with oscilloscopes and signal generators
• Experience in electronic design and miniaturisation
• Knowledge of highly integrated ultrasonic transducer driver systems, signal conditioning, and advanced digital signal processing cores
• Proficiency in C/C++ or similar and/or a scripting language (MATLAB/Python)
• Experience in collaborative software development (Git)

General Information

Calyo Offers
We are happy to accommodate individuals with different skill sets and you will have the opportunity to make an important contribution to an aspiring well-funded high-tech start-up. Your salary package will be very competitive and dependent upon relevant academic and industrial experience.

• A place with big goals that we trust we can achieve
• Opportunity to actively shape your role and bring your own ideas to the table
• A nurturing environment where we care for your personal and professional growth
• Competitive salaried compensation - we value our employees and show it
• Equity - every employee is a stakeholder in Calyo’s success
• The position is based in Bristol, U.K.

Calyo is committed to equal opportunity employment regardless of race, ethnicity, religion, gender identity, sexual orientation, age, disability, or any other basis protected by applicable law.

How to apply
Send your CV and a covering letter tailored to the role and together should explain your interest in the vacancy and why you would be a suitable candidate. Please include demonstrative examples of how you meet the essential criteria in your reply.