
A.Y. McDonald Mfg. Co. is a leading manufacturer of water works brass, plumbing valves, water systems, natural gas valves and meter bars. The company was founded in 1856 and is committed to taking care of the customer – our boss, through our growing investments of education, automation, and innovation. A career at A.Y. McDonald Mfg. Co. comes with a family friendly culture, on-the-job training, advancement opportunities, and the chance to make a difference every single day.
Cleaning and maintaining the premises of A.Y. McDonald Mfg. Co. in a clean and orderly manner by performing the following duties. The ideal candidate is detail-oriented, people-first, and works well both independently and as part of a collaborative team.
Primary Responsibilities:
Required Qualifications:
High school diploma or general education degree (GED) required. Six months’ related experience and/or training preferred.
Benefits
Benefits include major medical (BCBS), Delta dental and vision, company sponsored basic life insurance and short-term disability. Voluntary life insurance, accidental death and dismemberment, and long-term disability available. Competitive 401(k) with company matching, generous PTO, 10 paid holidays, and company giveaways, family picnics, and more!
A pre-employment Background Check and 6 panel (no THC) Drug screen required.
A.Y. McDonald Mfg. Co. is an equal opportunity employer
This position is required to work full-time at our Dubuque, Iowa location on 2nd shift.
Internal Candidates: To apply for an internal position, please go to the UKG website. All internal applications should be submitted by 5:00 PM on Wednesday, June 3, 2026.

A.Y. McDonald is a leading manufacturer serving the water works, natural gas, and plumbing industries. Since 1856, we’ve built our reputation on delivering reliable, high-quality solutions to support our critical infrastructure and the people who maintain it. In the words of our founder, "we make good products and sell them honestly."
A.Y. McDonald Mfg. Co. has a long tradition of trusted quality and dependable service. These attributes are advanced through the commitment of every employee. Everyone is challenged to capture the opportunity to excel and move upward to achieve a better product or process. A.Y. McDonald Mfg. Co. co-workers strive to meet and exceed this challenge everyday.
Customers like to buy from A.Y. McDonald Mfg. Co. Why?
The customer is "the boss," and every effort is exerted to exceed expectations.
Customer service is the number one priority. Customers find quality products linked with outstanding people.
A.Y. McDonald Mfg. Co. Corporate headquarters, brass foundry and main manufacturing plant are located in Dubuque, Iowa. We also have locations in Albia, IA and Elizabethton, TN.