Job Title: CNC Machinist. Location: Alum Bank, PA. Company: Mission Critical Solutions (MCS). . About Us. Mission Critical Solutions (MCS) is a family-owned subcontract manufacturing facility dedicated to becoming the most trusted provider in the region. Founded in 2008 as a small local job shop, MCS has grown into a leader in welding, machining, and fabrication services. With two locations and over 100,000 square feet of manufacturing space, we ...