Electrical Engineer - Biosensors & Instrumentation IdentifySensors Biologics | Gainesville, Florida | Full-time, on-site About the Company IdentifySensors Biologics is developing Check4®, a graphene-based molecular diagnostics platform designed to detect nucleic acids directly, without amplification. Having raised more than $23 million, we are advancing the materials, printed sensors, electronics, and software behind this technology. We are seeking a hands-on Electrical Engineer to advance electrode design, biosensor electrical readout, signal-processing algorithms, and reader hardware, including potentiostat systems that interface with cloud-based software. Position Summary You will help translate sensor responses into reliable diagnostic measurements and carry electrical designs from laboratory prototypes into manufacturing. This role combines circuit design, experimental testing, data analysis, and system integration. Working alongside materials scientists, electrochemists, molecular biologists, and software engineers, you will have meaningful ownership of engineering decisions and see your work tested in the laboratory. Engineers with experience in precision instrumentation, analog electronics, sensors, or medical devices are encouraged to apply. Why Join IdentifySensors?

Equity opportunity:

Opportunity to earn equity in a startup that has raised more than $23 million to advance its molecular diagnostics platform.

Technical ownership:

Influence electrode architecture, measurement electronics, and sensor-analysis methods.

Hands-on product development:

Design, build, test, and refine systems with direct access to laboratory results.

Multidisciplinary collaboration:

Work with scientists and engineers connecting materials, biology, electronics, and software.

Professional growth:

Opportunity to grow into technical leadership as the company expands.

Key Responsibilities Electrode design:

Design and optimize electrode geometry, materials, spacing, interconnects, and layouts for multi-sensor cartridges. Evaluate how surface quality and manufacturing variation affect electrical performance.

Biosensor electrical readout:

Develop and characterize measurement methods, with an emphasis on fixed-potential amperometry. Improve sensitivity, signal stability, and consistency across sensors.

Algorithm development:

Develop methods for signal filtering, baseline correction, feature extraction, sensor quality assessment, and combining measurements from multiple sensors into reproducible assay results.

Potentiostat and reader hardware:

Design, integrate, and troubleshoot potentiostat circuitry, analog front ends, multiplexers, data-acquisition systems, and embedded electronics.

System integration:

Collaborate with software engineers to integrate sensor cartridges, electrical contacts, reader electronics, firmware, and cloud-based software.

Testing and troubleshooting:

Design controlled experiments to distinguish molecular-binding responses from electrical artifacts. Investigate noise, drift, leakage, interference, contact resistance, and channel crosstalk.

Design for manufacturing:

Optimize electrode, cartridge, and reader designs for scalable, cost-effective production. Work with suppliers to define tolerances, simplify assembly, improve yield, and establish production testing.

Product verification and documentation:

Prepare schematics, PCB layouts, specifications, test procedures, and engineering reports to support design verification and transfer to manufacturing. Required Qualifications Self-starter with an entrepreneurial mindset: Takes initiative, owns problems through resolution, adapts to changing priorities, and is willing to roll up their sleeves and work across disciplines to help the team succeed. Bachelor's or advanced degree in Electrical Engineering, Biomedical Engineering, or a related field. Hands-on experience designing and troubleshooting analog or mixed-signal electronics, particularly low-current or low-noise measurement systems. Experience with PCB design, component selection, circuit simulation, and laboratory instrumentation. Proficiency in Python, MATLAB, or equivalent tools for data analysis and signal processing. Ability to design controlled experiments, interpret complex datasets, and translate findings into practical engineering improvements. Strong communication, documentation, and problem-solving skills, with the ability to work independently and collaborate across disciplines. Preferred Qualifications Experience with potentiostats, electrochemical measurement principles, and electrode-sample interfaces. Experience with biosensors, medical instrumentation, or diagnostic devices. Knowledge of multiplexed sensor arrays, low-noise amplifiers, shielding, grounding, and leakage-current control. Familiarity with printed electrodes, graphene or other conductive materials, and disposable sensor manufacturing. Experience with embedded firmware, microcontrollers, Bluetooth connectivity, and automated data acquisition. Experience evaluating classification algorithms using independent validation datasets. Familiarity with design for manufacturing, production testing, medical-device design controls, and quality systems. You do not need experience in every preferred area. We welcome candidates with strong electrical engineering fundamentals and relevant hands-on experience who are motivated to learn the application. Location & Work Environment This is a full-time, on-site position in Gainesville, Florida, involving hands-on laboratory testing, electronics development, and close collaboration with scientific, software, quality, and manufacturing teams. How to Apply Apply through Indeed with your résumé or send resume to humancapital@identifysensors.com. A cover letter is optional. If available, include a brief description of a relevant circuit, instrument, or sensor project and your contribution.

Job Type:

Full-time Pay:

$100,000.00 - $165,000.00 per year

Benefits:

Dental insurance Flexible schedule Health insurance Paid time off

Experience:

Analog or mixed-signal circuit design: 5 years (Required) PCB design and hardware troubleshooting: 5 years (Required) Potentiostat or electrochemical instrumentation: 5 years (Required)

Algorithms:

5 years (Required) Rapid prototyping: 5 years (Required)

Work Location:

In person