Electrical Engineer I

About the Role

Walchem is seeking an Electrical Engineer to join a team designing electronics for controllers and sensors used in industrial water treatment, wastewater, food and beverage, and plating applications. This role offers hands-on experience across the full product development cycle, from concept to production, with a primary focus on sustaining engineering for current products and supply chain protection.

Key Responsibilities

• Support sustaining engineering for current Walchem controllers, electrodes, and sensors, including design updates for component obsolescence, cost reduction, and product improvements.
• Protect the supply chain by working with contract manufacturers and the Logistics team on component selection, alternates, and qualified second sources for single-source parts.
• Monitor components for end-of-life risk.
• Evaluate and qualify replacement components, completing redesign, testing, and documentation for alternate approvals.
• Write engineering test code in C or Python and perform initial board bring-up, verifying power, clocks, communication interfaces, and I/O on new and revised boards.
• Assist with root cause analysis and corrective action for field and production failures.
• Resolve production issues with contract manufacturers and support test fixtures, work instructions, and design transfer to manufacturing.
• Maintain accurate schematics, BOMs, and design documentation, and release changes through the engineering change order (ECO) process.
• Build and debug prototype hardware using oscilloscopes, multimeters, power supplies, and other lab instruments.
• Design and modify schematics and PCB layouts for controller boards, I/O modules, power supplies, and sensor electronics under the guidance of senior engineers.
• Execute design verification and engineering verification testing (EVT), document results, and help resolve issues found.
• Support analog and mixed-signal measurement circuits for conductivity, pH/ORP, disinfection, flow, and temperature sensing.
• Help prepare products for UL/CSA, CE, and EMC certification, including pre-compliance testing and test documentation.
• Work with controller software engineers on hardware and firmware integration and board-level testing.
• Participate in design reviews and follow the New Product Development process on assigned projects.
• Use AI-assisted tools, such as Claude, to speed up documentation, test planning, and analysis.
• This position requires full-time, on-site work at our Holliston, MA office.

Requirements & Tech Stack

• Bachelor’s degree in Electrical Engineering or Computer Engineering.
• 0–3 years of relevant experience, including internships or co-ops.
• Solid understanding of analog and digital circuit fundamentals.
• Hands-on experience with schematic capture and PCB layout tools, such as Altium Designer.
• Experience using standard lab equipment, including oscilloscopes, multimeters, and power supplies.
• Ability to solder, rework, and debug circuit boards.
• Familiarity with microcontrollers and common interfaces such as SPI, I2C, and UART.
• Basic C or Python programming for test automation.
• Excellent problem-solving skills and strong attention to detail.
• Strong communication skills and the ability to work effectively as part of a team.
• Eager to learn, take ownership of assigned work, and grow technical skills.
• Ability to manage multiple tasks and changing priorities.

Preferred Qualifications

• Experience with component lifecycle tools, such as SiliconExpert or Octopart, or with ERP systems.
• Internship, co-op, or project experience with industrial, instrumentation, or embedded hardware.
• Exposure to circuit simulation tools such as SPICE.
• Familiarity with industrial I/O such as 4–20 mA, relays, and Modbus.
• Awareness of UL, CE, and EMC product requirements.
• Experience with AI-assisted development tools.