Mainframe Developer & Support (OS2200/COBOL)
CompanyUnisys
Location
Milton Keynes, England, United Kingdom
Employment TypeFull-time
Posted At3/20/2026
UK Visa Sponsorship Analytics
Analytics are greyed out due to low classification confidence (21.0%).
Occupation TypePlant and machine operatives not elsewhere classified.
Occupation Code Skill LevelIneligible
Sponsorship EligibilityIneligible for Sponsorship
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Description
What Success Looks Like In This Role
Unisys is a global technology solutions company that powers breakthroughs for the world’s leading organizations. We specialize in delivering secure, cutting-edge digital platforms, cloud and infrastructure services, enterprise computing, and business process solutions.
With a legacy of innovation and a forward-thinking mindset, Unisys helps clients across industries—from government to financial services—transform their operations and achieve mission-critical outcomes. Join us and be part of a team that’s redefining what’s possible through technology.
As part of our Managed Applications Services, we provide day-to-day support for applications running in a mission-critical environment on a 24x7 basis. We are looking for an individual to join our team that provides support and development to our Command-and-Control services for our client. You will be required to attend our client’s site three days per week.
This role would focus on the mainframe element of the solution and e would include providing day-to-day support for existing services as well as software enhancements as defined by our client.
You Will See Yourself
Key Qualifications
The main technical skills that we require for this role would be experience within Application Support, ideally with strong mainframe skills such as COBOL development and tools. More specifically, knowledge of the following technologies would be required or advantageous:
Unisys is a global technology solutions company that powers breakthroughs for the world’s leading organizations. We specialize in delivering secure, cutting-edge digital platforms, cloud and infrastructure services, enterprise computing, and business process solutions.
With a legacy of innovation and a forward-thinking mindset, Unisys helps clients across industries—from government to financial services—transform their operations and achieve mission-critical outcomes. Join us and be part of a team that’s redefining what’s possible through technology.
As part of our Managed Applications Services, we provide day-to-day support for applications running in a mission-critical environment on a 24x7 basis. We are looking for an individual to join our team that provides support and development to our Command-and-Control services for our client. You will be required to attend our client’s site three days per week.
This role would focus on the mainframe element of the solution and e would include providing day-to-day support for existing services as well as software enhancements as defined by our client.
You Will See Yourself
- Identifying problems and potential resolutions to support end users
- Analysing and resolving issues relating to interfaces between various system components
- Applying ingenuity and creativity in developing enhancements and new areas of functionality
Key Qualifications
The main technical skills that we require for this role would be experience within Application Support, ideally with strong mainframe skills such as COBOL development and tools. More specifically, knowledge of the following technologies would be required or advantageous:
- COBOL
- Experience of OS2200 Unisys mainframe technology.
Strong interpersonal skills are expected as you will be communicating regularly with our client. Any previous experience within Public Sector organisations would be welcomed.
You will be expected to participate in an out-of-hours on-call rota to provide 24x7 support of the applications
Important Information
Candidates must be eligible for, and will be required to obtain and maintain, Counter Terrorist Check (CTC) clearance for this role. Eligibility requires continuous residence in the UK for a minimum of three years. This is a mandatory requirement and cannot be waived.
We Are Proud Of
- Unisys was named a Leader in the 2020 Gartner Magic Quadrant for Managed Workplace Services, North America.
- Unisys won the 2020 Microsoft Global Partner of the Year Award in the Modern Workplace – Modern Endpoint Management category.
- Unisys won the 2020 Asia-Pacific Stevie Awards in the categories of Innovation in Technology Management, Planning & Implementation and Innovation in Business-to-Business Products & Services.
- Unisys was recognized as a Top 100 Global Outsourcing Company by IAOP for the 15th consecutive year.
- Unisys was named to the Forbes America's Best Employers for Diversity 2021 list.
- Unisys won the 2021 Artificial Intelligence Breakthrough Award for Best Chatbot Solution.
- Unisys was named a Leader in the NelsonHall 2020 Next Generation End-User Computing Services report.
- Competitive compensation and benefits: Unisys offers competitive compensation packages and benefits to their employees, including healthcare, retirement plans, paid time off and compensation.
- Innovative and challenging work: Unisys is a company that is constantly pushing the boundaries of technology, which means that you will have the opportunity to work on innovative and challenging projects.
- Collaborative culture: Unisys has a collaborative and inclusive work culture, which means that you will have the chance to work with people from diverse backgrounds and learn from their expertise.
- Employee development: Unisys is committed to investing in their employees' professional growth and development, offering training and development opportunities, mentorship programs, and leadership development programs.
- Industry expertise: Unisys has deep expertise in various industries, including financial services, healthcare, government, and transportation. This means that you will have the opportunity to work on projects in your industry of interest and learn from experienced colleagues who understand the unique challenges and opportunities of your industry.
- Social responsibility: Unisys is committed to social responsibility and sustainability, which means that you will have the opportunity to work for a company that is making a positive impact on the world
Corporate Social Responsibility and DEI (Diversity, Equity, and Inclusion) standards are especially important to us and go far beyond the usual! Associate Impact Groups are formed voluntarily to further develop and support our DEI standards internally.
Our Unisys University is available to you according to your individual needs. An MBA sponsorship program is also available! Our goal is to help you realize your individual potential!
International work opportunities abroad for all employees
"Wellbeing & Employee Assistance Program": Your (mental) health is important to us and is treated confidentially by a neutral party!
Solid qualification-, performance- & competence-based remuneration model, attractive pension scheme and various allowances
Bonus/referral/incentive/recognition programs - we want you to feel appreciated at Unisys!
What do we offer?
- Pension
This commitment includes our efforts to provide for all those who seek to express interest in employment the opportunity to participate without barriers. If you are a US job seeker unable to review the job opportunities herein, or cannot otherwise complete your expression of interest, without additional assistance and would like to discuss a request for reasonable accommodation, please contact our Global Recruiting organization at GlobalRecruiting@unisys.com or alternatively Toll Free: 888-560-1782 (Prompt 4). US job seekers can find more information about Unisys’ EEO commitment here.