Computer Tester Jobs in Mississippi (NOW HIRING)

Mission Critical Group (MCG) is an end-to-end power solutions and services provider that accelerates time-to-power and delivers scalable, resilient infrastructure for mission critical environments. By integrating engineering, manufacturing, modular deployment, and lifecycle services under one platform, we streamline execution and bring complex projects online faster - without compromising performance. With a robust U.S. manufacturing network, MCG supports data centers, power generation, healthcare, oil & gas, pharmaceuticals, semiconductors, and industrial facilities where uptime is non-negotiable. Mission Critical Group designs, manufactures and provides value-added services for customers requiring critical power solutions. Powering a new electric world for a brighter, more secure future.

The Tester is responsible for performing testing and troubleshooting during the final assembly phase of electrical control and distribution equipment prior to customer delivery. This role ensures product quality, compliance, and optimal functionality by verifying that all assemblies meet engineering specifications, customer requirements, and applicable industry standards. The Testing Technician works closely with production, engineering, and quality teams to identify and resolve issues before shipment. 

Schedule: Monday to Thursday 6:00 AM–4:45 PM, Friday 6:00 AM–2:00 PM | Occasional Saturdays

Accountabilities 

• Demonstrate technical skills regarding performing diagnostics, troubleshooting, and testing for reliability on Low, Medium, and Arc-Resistant switchgear and electrical control equipment using tools such as multimeters etc.   
• Verify and document HIPOT tests on copper bus. 
• Ensure final product is consistent with technical schematics, perform basic device programming, and repair all custom-built equipment prior to client shipment as a measure of quality control.   
• Perform Factory Acceptance Tests to show the functionality of Mission Critical Group products and advise of interfacing capabilities with clients’ existing equipment under the direction of senior team members.   
• Identify functionality or defects through visual and electrical inspections on power distribution equipment and assist senior team members with maintenance or repairs within testing guidelines. 
• Assist senior team members with design verifications and product reliability demonstrations during client witness testing activities under supervision.   
• Perform other duties as assigned. 

Required knowledge/Experience 

• 2+ years of experience in wiring and assembling electrical control and distribution equipment, preferably in a switchgear or industrial manufacturing environment. 
• Working knowledge of engineering principles, techniques, and procedures as applied to the design and production of electrical equipment. 
• Understanding raw materials, production processes, and manufacturing techniques. 
• Knowledge of design techniques, tools, and principals involved in the production of technical plans, blueprints, drawings, and models. 
• Knowledge of machines and tools, including their designs, uses, repair, and maintenance. Testing tools include MPRT, secondary injection units, digital ratiometers, CT testers, digital multimeters, Fluke meters, AC and DC high-potential testers, high-voltage testers, basic hand tools, and testing jumpers. 
• Proficiency with computer hardware and software, including Microsoft Office Suite. 
• Intermediate written and verbal communication skills, including the ability to read and interpret technical procedures, write reports and correspondence, and present information to managers and customers. 
• Solid mathematical skills, including the ability to calculate figures, proportions, and measurements. 
• Strong attention to quality with the ability to follow procedures carefully and strive for accuracy in all work. 
• Self-motivated with the ability to identify and resolve issues independently while maintaining adherence to guidelines and procedures. 
• Ability to work collaboratively with peers, leadership, and cross-functional teams. 
• Customer-oriented with a proactive approach to supporting internal and external needs. 

Preferred 

• 2 years of experience troubleshooting electrical and mechanical systems 

Education 

• High School Diploma or GED required. 

Values  

• Safety Focus: Prioritize safety in all actions. Actively follow safety protocols, identify potential hazards, and take immediate steps to correct or report unsafe conditions. Model safe behavior for others and contribute to a culture of workplace safety.  
• Have Humanity: Respect the input and ideas of everyone to create the best possible outcome.  
• Be Transparent: Value transparency in all interactions, ensuring honesty and openness with each stakeholder.   
• Drive Innovation: Seek new ways to improve and take on new challenges.   
• Be Resilient: Adapt to the ever-evolving business needs enabled by resourcefulness and agility.  
• Always Reliable: Deliver on your commitments and achieve your goals. Show up to work on time and complete your assigned tasks.  
• Grit: Learn new things, actively seek feedback, and training.  
• Ownership Mindset: Take full responsibility for the quality and efficiency of your work. Proactively identify issues, offer solutions, and follow through. Treat company resources and goals as your own

Work Environment and Physical Demands

• This is a FLSA non-exempt position paid on an hourly basis. Overtime may be required based on production demands, including extended shifts, weekends, or holidays.  
• This role is based on the production floor. The position requires standing for extended periods, working around machinery, and adherence to all safety and compliance standards.  
• Mobility: Ability to move around the manufacturing plant, including walking, standing, and climbing stairs.  
• Manual Dexterity: Occasional use of hands to handle or feel objects, tools, or controls.  
• Lifting: Ability to lift and carry items up to fifty (50) pounds. All lifting should be done following OSHA standards.  
• Visual and Auditory Requirements: Must be able to see and hear well enough to navigate the plant safely and communicate effectively with team members.   

A Note to our Recruitment Partners: We really appreciate the interest, but MCG currently manages hiring through our internal team. We love getting to know our candidates directly! Because of this, we don’t accept unsolicited resumes from agencies at this time. If we ever need an extra hand, we’ll be sure to reach out to the community. Thanks for understanding!

MCG is an equal opportunity employer prohibiting discrimination based on race, color, creed, religion, sex, marital status, physical or mental disability, and any other protected classes stated by applicable federal and state laws. MCG is committed to providing equal employment opportunities to qualified individuals with disabilities and to act in accordance with regulations and guidance issued by the Equal Employment Opportunity Commission (EEOC).