About DropLabDropLab designs microfluidic cartridges and point-of-care diagnostic instruments. We build the full stack in-house: cartridges, pneumatics, optics, analog detection, embedded firmware, and the electronics that tie it together. The team is small. You will sit next to firmware, mechanics, and assay — not throw gerbers over a wall.

The roleOwn instrument and test-jig electronics from schematic through bring-up. Design mixed-signal boards, get them fabricated, assemble or rework them, and prove they work in the system so firmware and the rest of hardware can move.

What you'll do

- Design, layout, and spin mixed-signal PCBs: schematic, stackup, BOM, fab, assembly/rework, and bring-up.
- Isolate high-voltage fluidic drive from sensitive analog detection paths. EMI, grounding, shielding, and analog power domains are part of the job.
- Debug noise, coupling, power integrity, and connector/interface issues on a real instrument — not only on the bench.
- Design and integrate boards for compute, HMI, sensing, actuation, power, and test jigs.
- Work daily with firmware (STM32 / RTOS) on bring-up, test harnesses, and I2C/SPI/UART. You do not need to be a firmware engineer; you do need to sit at the bench with one.
- Keep schematics, BOMs, and revision notes in a state a contract manufacturer could build from.

What we're looking for
- Degree in electrical / electronics engineering, or equivalent bench experience.




- Several years designing and bringing up your own PCBs — not only reviewing vendor layouts.
- Mixed-signal analog: amplifiers, low-noise supplies, ADCs, grounding, shielding, and measuring noise floors.
- Comfortable with high-voltage or high-power electronics coexisting with sensitive analog on the same instrument.
- Hands-on: soldering (including fine-pitch / rework), scope, logic analyzer, reflow.
- Schematic and PCB layout in Fusion 360 (strongly preferred). Experience with KiCad or Altium is practical; willingness to work in Fusion 360 is required.

- SPICE is a plus.
- Willing to own a board until it works in the instrument, not until it leaves the fab.

Nice to have
- Photodiode / APD / lock-in or fluorescence detection electronics.
- Electrochemistry / EIS / potentiostat hardware.
- Motor drivers, piezo drive, or pneumatic/valve electronics.
- Mechanical design in Fusion 360 (enclosures, board outlines, connector keepouts) alongside electronics.
- STM32, compute modules, or Python bench scripts.
- Small-batch production: panelization, test jigs, CM packages.
- Diagnostics, life-science instruments, or other regulated hardware.

What this is notNot a pure firmware role. Not a paper-architecture role. Not remote-first. You will be in the Toronto lab, spinning boards on a short cycle and debugging them on a real instrument next to fluidics and optics.

📌 Electronics Engineer (Toronto)
🏢 DropLab
📍 Toronto