About the role

The Senior/Principal Electrical Engineer role is to lead the technical design and development of the electrical and electronic systems in WearOptimo's Microwearable™ devices, with a particular focus on bioimpedance measurement. The role is responsible for low-noise, low-power analog and mixed-signal design, PCB development, and the integration of electronics with microelectrode sensors, taking designs from concept through verification and into manufacture. As a senior/principal individual contributor reporting to the VP of Engineering and Product, the role brings technical depth and systems-level judgement to multidisciplinary projects, provides technical guidance and design review to other engineers, and helps strengthen the design, verification, and compliance practices that underpin WearOptimo's engineering capability.

Key responsibilities

- Develop bioimpedance measurement systems for Microwearable™ devices built around integrated bioimpedance AFEs, including electrode configuration, excitation and measurement settings, and define accuracy targets and calibration strategies

- Implement and optimise integrated analog front ends in wearable designs, including the electrode interface, input protection and filtering, power management, and board layout, to achieve accurate, low-power measurement performance

- Own schematic capture and PCB design for compact rigid, flexible, and rigid-flex wearable boards, integrating subsystems such as analog and digital sensors, MCUs, and BLE/RF circuitry, including antenna design and matching

- Design for relevant product safety, EMC, and regulatory standards; support pre-compliance and certification testing and develop production test circuitry

- Plan and deliver assigned electrical work packages to agreed scope, milestones, and quality, providing accurate estimates and progress updates to leadership

- Work as part of an integrated, cross-disciplinary team, partnering closely with the Embedded Systems engineering and AI teams

- Provide technical guidance, design review, and day-to-day support to other engineers on electrical design and measurement

- Develop test plans, fixtures, and automated test systems; conduct electrical verification and characterise sensitivity,



reliability, and variability of sensor systems

- Maintain accurate, traceable design files, test reports and technical documentation that support design reviews, knowledge sharing and handover to manufacturing

- Liaise with external vendors, test laboratories, and collaborators to support technical delivery, validation, and manufacturing readiness

About you

Essential:

- Bachelor's degree or higher in Electrical, Electronic, or Biomedical Engineering, or a related discipline

- Minimum of 5 years' industry experience in electrical and electronic hardware design, with a proven track record of taking designs from concept through verification and into production

- Demonstrated hands-on expertise in analog and mixed-signal circuit design, including low-noise signal conditioning, component selection, and circuit simulation, and in multilayer PCB design through to board bring-up and debugging

- Strong analytical skills, including circuit, noise, and impedance analysis, with experience using laboratory instruments such as impedance analysers and oscilloscopes, and in modelling and interpreting measurement data

- Experience across the product development lifecycle, from concept through to manufacturing and launch, working within a cross-functional team

- Excellent attention to detail and rigour in design, measurement, and documentation

- Strong analytical and problem-solving skills, with accountability for outcomes

- Excellent communication skills and willingness to share knowledge with engineers at all levels

- Ability to adapt to shifting priorities in a dynamic start-up environment

Desirable:

- 10+ years’ experience in electrical and electronic hardware design, or a PhD in a relevant field (e.g., biomedical instrumentation, analog electronics, or bioelectrical measurement).





- Experience with Altium Designer for end-to-end hardware design to production pipeline. Experience maintaining and scaling Altium 365 workspace, optimizing component libraries, template management, and team collaboration workflows.

- Experience designing and validating bioimpedance measurement systems, including integrated bioimpedance AFEs, electrode configurations, and calibration against reference standards.

- Experience with other physiological or electrochemical sensing systems, such as biopotential or electrochemical sensors.

- Experience developing wearable electronics, including low-power, battery-operated designs.

- Experience taking wireless wearable or skin-contact electronics through electrical safety, EMC and radio compliance and certification, including Bluetooth (BLE) qualification and regulatory approvals such as FCC (US), CE (EU), and RCM (Australia/New Zealand).

- Familiarity with quality management systems (e.g., ISO 9001) and risk management frameworks.

- Experience with embedded firmware and scripting for test automation and data analysis.

- Experience managing external relationships, such as with vendors, contract manufacturers, and research partners, including manufacturing transfer or product scale-up.

- Contributions to IP, publications, or collaborative research projects.

- Previous experience in a high-performing start-up or R&D; workplace.

About us

At WearOptimo, we're on a mission to revolutionise global personal healthcare through wearable technology. Our values guide the way we work together and deliver impact: Contribution – work collaboratively, share knowledge, and actively support team and organisational goals; Learning – stay curious, seek feedback, and continuously develop skills and knowledge; Excellence – deliver high-quality work, meet agreed deadlines, and maintain standards of performance and safety; Respect – communicate considerately and inclusively, value diverse perspectives, and collaborate with empathy and cultural awareness; Honesty – act with sincerity, fairness, and transparency in all interactions; Truthfulness – provide accurate, timely, and factual information in all communications and decision-making.

📌 Senior/Principal Electrical Engineer (South Brisbane)
🏢 WearOptimo
📍 South Brisbane