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

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

Solid 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 workplace

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 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; environment.

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.

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