Electrical Engineer - Precision Instrumentation (Senior/Lead and Mid-to-Senior)

About the role

Fresh is hiring two Electrical Engineers, one Senior (EE lead) and one Mid-to-Senior, for a nearshore engineering team in Costa Rica supporting a new product introduction for a global test and measurement leader: an ultra-low pressure primary calibration standard. Both engineers work across the full electrical scope, from redesigning legacy precision boards to designing new ones, alongside the client's Lead EE, PCB layout engineer and firmware/embedded Linux engineers.

Key responsibilities

• Redesign legacy precision analog and mixed-signal PCBAs (main, pass-thru and pressure controller boards), replacing obsolete A/D converters, instrumentation amplifiers, voltage references, mechanical relays and sensors.
• Design new boards: a carrier board for an NXP i.MX95-class SoM, a USB-to-multi-port RS-232 bridge board and a mains relay board.
• Design AC/DC and DC/DC power delivery networks, including power budgets and rail lists.
• Capture schematics in Cadence, select components for long availability and EU RoHS compliance, and deliver BOMs and design packages for review; PCB layout is done by the client.
• Bring up and debug prototype boards and support system integration with firmware and embedded Linux engineers.
• Design for CSA safety and EMC compliance, including mains-switching hardware, and support compliance testing with design fixes.
• Senior/Lead: set technical direction, run design reviews and act as the main EE contact with the client's Lead EE.

Required profile

• Mid-to-Senior: 5+ years; Senior/Lead: 8+ years, after a BS/MS in Electrical Engineering or equivalent.
• Analog and mixed-signal schematic design for precision measurement instrumentation.
• Ability to move between legacy obsolescence redesign and net-new design in the same engagement, working independently.
• English proficiency in speaking and writing.
• Preferred: carrier board design for SoMs, mains-powered equipment design for CSA/UL/IEC 61010 and EMC, FPGA or glue-logic selection, test and measurement or calibration instrument experience, hardware security features, and use of AI-assisted engineering tools.

Required skills

• AC/DC and DC/DC power supply design.
• Serial interface design: RS-232, USB, SPI, I2C.
• Board bring-up and debugging with oscilloscopes, DMMs, logic analyzers and debug probes.
• Schematic capture in Cadence, OrCAD/Allegro, Altium or equivalent.

What we offer

• Competitive salary.
• Training and development opportunities.
• Medical plan and English lessons.
• Collaborative, relaxed work environment with schedule flexibility.