Mainframe Consultant / Architect / Engineer in London

At Kyndryl, we design, build, manage and modernize the mission-critical technology systems that the world depends on every day. We are always moving forward – always pushing ourselves to go further in our efforts to build a more equitable, inclusive world for our employees, our customers and our communities.

Kyndryl Consult is the fastest-growing business within the organisation and instrumental to the company’s strategic growth objectives. We are looking for talented Mainframe Consultants, Mainframe Architects, and Mainframe Engineers who are passionate about delivering high-impact solutions for our clients. You will bring deep expertise in mainframe technologies and enterprise IT systems, combining hands-on technical capability with strategic thinking. Whether you focus on designing architectures, leading transformation projects, or implementing and optimising critical systems, your work will make a real difference.

In these roles, you’ll act as a trusted advisor and technical leader, translating complex technical challenges into actionable solutions for clients. You’ll design, implement, and modernise IT infrastructure and mainframe environments, while integrating cloud and enterprise systems to deliver scalable, innovative solutions. You’ll collaborate closely with clients, delivery teams, and other technical specialists to ensure every solution meets business objectives, is delivered on time, and maintains the highest standards.

At Kyndryl, you’ll work across all major cloud platforms, giving you the chance to expand your technical expertise and take on new challenges. You’ll have opportunities to pursue certifications, learn from experienced peers, and develop your career in a culture that encourages innovation, collaboration, and continuous growth. In this role, your impact will be visible and tangible. You’ll influence, design, and deliver solutions that transform client businesses, become a trusted partner to their teams, and help shape the future of enterprise technology. This is your chance to work on complex, high-profile engagements while advancing your skills and career in a fast-growing, dynamic organisation.

Key Responsibilities

• Lead and shape mainframe solutions across complex enterprise environments, bridging business strategy and technology execution.
• Design, implement, and modernize enterprise IT applications that are scalable, secure, and high performing.
• Drive DevOps and DevSecOps practices, Agile methodologies, and continuous improvement initiatives across teams.
• Collaborate closely with clients, delivery teams, and technical specialists to solve complex challenges and deliver high-impact solutions.
• Conduct readiness assessments and craft strategies to optimize IT and cloud resources, modernize databases, and integrate systems into hybrid IT environments.
• Act as a trusted advisor and technical leader, guiding projects from inception to completion, defining success, and ensuring solutions meet the highest standards.
• Produce technical plans, blueprints, and models while mentoring team members and fostering knowledge sharing.
• Influence client decisions by communicating complex solutions in clear, compelling ways to both technical and executive stakeholders.

Your future at Kyndryl

This role opens the door to many career paths, both vertical and horizontal, and there may be opportunity to travel. It’s a great chance for database administrators or other techs to break into the cloud. It’s also a solid path to become enterprise or chief architect or a distinguished engineer! Whatever you see for yourself, you’ll find the opportunity here.

Who You Are

You’re good at what you do and possess the required experience to prove it. However, equally as important, you have a growth mindset; keen to drive your own personal and professional development. You are customer-focused, someone who prioritises customer success in their work. And finally, you’re open and borderless, naturally inclusive in how you work with others.

What We’re Looking For

• Deep expertise in mainframe technologies.
• Hands-on experience in mainframe and/or IBMi software development, systems administration, or architecture, with strong knowledge of Windows, Linux, and enterprise applications.
• Experience with mainframe databases such as DB2, IMS, Adabas, Datacom, Supra, and understanding of database performance, tuning, and high availability.
• Familiarity with core mainframe subsystems and languages: z/OS, JCL, JES, RACF/ACF2, CICS, COBOL, PL/1, SQL, Natural.
• Experience in application architecture and IT consulting, including hybrid cloud integration and modernization initiatives.
• Strong analytical, problem-solving, and decision-making skills, with the ability to balance technical depth and client-facing advisory responsibilities.
• Excellent communication and presentation skills, capable of engaging both technical teams and executive stakeholders.

Preferred Skills and Experience

• Experience with IT operating models and organizational design for technology deployment.
• Knowledge of modernizing databases and leveraging data for business value.
• Exposure to hybrid cloud environments, and experience integrating mainframe data for actionable insights.
• Passion for mentoring and developing teams while delivering innovative, high-impact solutions.
• Advanced certifications in AWS, Azure, TOGAF, or other relevant technologies.
• Familiarity with Agile frameworks such as Kanban, SAFe, or Scrum.

Being You

Diversity is a whole lot more than what we look like or where we come from, it’s how we think and who we are. We welcome people of all cultures, backgrounds, and experiences. Our Kyndryl Inclusion Networks are only one of many ways we create a workplace where all Kyndryls can find and provide support and advice. This dedication to welcoming everyone into our company means that Kyndryl gives you – and everyone next to you – the ability to bring your whole self to work, individually and collectively, and support the activation of our equitable culture. That’s the Kyndryl Way.

What You Can Expect

With state-of-the-art resources and Fortune 100 clients, every day is an opportunity to innovate, build new capabilities, new relationships, new processes, and new value. Kyndryl cares about your well-being and prides itself on offering benefits that give you choice, reflect the diversity of our employees and support you and your family through the moments that matter – wherever you are in your life journey. Our employee learning programs give you access to the best learning in the industry to receive certifications, including Microsoft, Google, Amazon, Skillsoft, and many more. Through our company-wide volunteering and giving platform, you can donate, start fundraisers, volunteer, and search over 2 million non-profit organizations. At Kyndryl, we invest heavily in you, we want you to succeed so that together, we will all succeed.