Senior Mainframe Systems Programmer Jobs in Missouri
Senior Mainframe Systems Programmer jobs in Missouri are open across Kansas City, St. Louis, and St Louis and other Missouri metros, with employers like Burns & McDonnell, Clayco, and Mastercard hiring at every experience level. Find a role that fits below and apply directly.
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INTRODUCTION
Algonquin Power & Utilities Corp. (AQN), parent company of Liberty, is a diversified international generation, transmission, and distribution utility. AQN is committed to providing safe, reliable, and cost-effective energy and water solutions through our portfolio of utility investments to over one million customer connections, largely in the United States and Canada.
At Algonquin, our vision is to be the most trusted utility service provider in North America – a premium regulated utility, known for our customer focus, commitment to sustainability, and strong community partnerships. Our employees are at the heart of that vision. We believe that when people are empowered to learn, grow, and contribute their ideas, we can achieve remarkable results together.
We are building a culture that values integrity, inclusivity, and innovation. By joining Algonquin, you’ll be part of a team that is shaping the future of energy and water, while creating long-term value for our customers, communities, employees, and shareholders.
PURPOSE
The Senior Planning Engineer will lead work tasked within the engineering department and coordinates work of entry-level engineers to support and accomplish department goals. Using past experience, provide authoritative knowledge and judgment in the analyses, planning, and proposals of mitigation for Liberty Utility’s transmission and distribution system and interconnections. Perform load flow studies, short circuit studies, coordinate transmission and distribution systems for optimum operation, fulfill power pool requirements by supporting RTO studies, and assist in coordinating and compiling project scopes and cost estimates.
ACCOUNTABILITIES
- Analyze and plan for efficient transmission and distribution additions, reinforcements and interconnections to provide an adequate, reliable and safe electrical system. Knowledge of electrical power systems, including but not limited to; power flow, stability (transient and dynamic), long/short range planning studies, short circuit, arc flash, under-frequency load shedding, circuit and system dynamics, shunt capacitors, equipment ratings, power factor analysis, and other related studies.
- Assimilate and submit data as required to the Southwest Power Pool, NERC and the various state public service commissions for inclusion in reports, computer simulation studies and/or other needs.
- Develop and maintain computer databases as required for load flow, short circuit, facility ratings, and other system planning studies.
- Investigate, analyze and propose mitigation techniques for power quality problems occurring on Liberty's system and at customer’s facilities.
- Assist in coordinating and compiling cost estimates for transmission and distribution projects which will be included in the Construction Budget.
- Provide technical and procedural leadership, coordination, and facilitation with internal and external partners by analyzing system impacts of proposed additions, changes, and/or removals of infrastructure needed to serve load.
EDUCATION AND EXPERIENCE
- Bachelor of Science in Electrical Engineering with 5+ years of utility planning experience.
- Have working knowledge of PSS/E (highly desirable), CYMEDIST (desirable) or relevant tools and experience with NERC Reliability Standards compliance.
- Strong written and verbal communication skills for compiling technical reports.
- Strong analytical and problem-solving skills.
Our purpose is sustaining energy and water for life, and it is demonstrated in everything we do as a business and as an employee team.
OUR MISSION
We provide safe, secure, reliable, cost-effective and sustainable energy and water solutions. Our mission is how we create value as an organization—it is what drives us every day to fulfill our purpose.
OUR VISION
We better the lives of our customers and communities. Our vision is what we see as possible. It's where we aspire to be, what we want to achieve and how we'll make an impact. It guides and keeps us on the right path as we work towards fulfilling our purposes.
OUR GUIDING PRINCIPLES
- Customer Centric
- Integrity
- Entrepreneurial
- Teamwork
- Owner mindset
- Outcome focused
- Continuous learning
WHAT WE OFFER
Collaborative environment with a genuine flexible working policy
- 401k Plan with matching
- Share purchase/match plan
- Leadership Development Program
- Volunteer paid days off
- Employee Assistance Program
- Achievement fund
- Free parking
- Variety of Health & Wellness programs
- Discount and Perks program
We are focused on building a diverse and inclusive workforce. If you are excited about this role and are not confident you meet all the qualification requirements, we encourage you to apply to investigate the opportunity further.
We are an equal opportunity employer and value each person's unique background, diversity, experiences, perspectives and talents.
Full participation of all employees in a safe, healthy and respectful environment is key to individual and company success. We are committed to fully utilizing the abilities of all our employees and expect each of our employees to honour this commitment in their daily responsibilities.
LOCATION
Joplin, MO, US, 64804
Nearest Major Market: Joplin
See All 583+ Senior Mainframe Systems Programmer Jobs in Missouri
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Find JobsSenior Mainframe Systems Programmer Jobs by City in Missouri
Where Missouri roles are concentrated, by current openings.
Senior Mainframe Systems Programmer Job Market in Missouri
A snapshot from current Missouri openings, updated as new roles post.
Who's Hiring
- Burns & McDonnell32

- Clayco28

- Mastercard25

- KPMG14

- Washington University in St. Louis14

Top Industries Hiring
- Consulting & Professional Services157
- Construction & Real Estate99
- Technology & Software51
- Education45
- Healthcare & Medical Services35
What Missouri Employers Look For
The qualifications that appear most often in senior mainframe systems programmer jobs across Missouri.
- 5 or more years of hands-on z/OS systems programming experience in a production environment
- Proficiency with IBM system software installation and maintenance using SMP/E
- Experience configuring and supporting JES2 or JES3, VTAM, and TCP/IP on z/OS
- Working knowledge of RACF, ACF2, or Top Secret for mainframe security administration
- Familiarity with DFSMS, DASD management, and storage subsystem configuration
- Bachelor's degree in computer science, information systems, or a related technical field
Senior Mainframe Systems Programmer Jobs in Missouri: Frequently Asked Questions
How many senior mainframe systems programmer jobs are there in Missouri?
There are 583+ senior mainframe systems programmer openings in Missouri on Migrate Mate as of June 2026, with the most roles in Kansas City, St. Louis, and St Louis. New positions post regularly as employers across Missouri hire.
How much do senior mainframe systems programmers make in Missouri?
Senior mainframe systems programmers in Missouri earn a median of about $90,420 a year, based on May 2025 Bureau of Labor Statistics wage data, ranging from around $54,760 for the lowest 10% to over $126,590 for the top 10%. Pay rises with experience, specialty, and employer.
Which Missouri cities have the most senior mainframe systems programmer jobs?
Kansas City, St. Louis, and St Louis have the most senior mainframe systems programmer openings in Missouri right now, with additional roles spread across smaller metros statewide.
Which companies hire senior mainframe systems programmers in Missouri?
Employers hiring senior mainframe systems programmers in Missouri include Burns & McDonnell, Clayco, and Mastercard, based on current listings on Migrate Mate as of June 2026.
Are there remote senior mainframe systems programmer jobs in Missouri?
Yes. About 16% of senior mainframe systems programmer openings tied to Missouri are remote or hybrid as of June 2026. The rest are on-site roles based in Missouri metros.
How do I apply for senior mainframe systems programmer jobs in Missouri?
You can apply to senior mainframe systems programmer jobs in Missouri directly on Migrate Mate. Search the listings above, find roles that match your experience and preferred Missouri location, then apply to each one that fits.
See All 583+ Senior Mainframe Systems Programmer Jobs in Missouri
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