At a Glance
- Tasks: Support mission-critical applications and drive innovation in production support.
- Company: Join Mastercard, a global leader in the payments industry.
- Benefits: Competitive salary, flexible work options, and opportunities for continuous learning.
- Other info: Collaborative, agile environment with excellent career growth potential.
- Why this job: Make a real impact on the UK's payment infrastructure with cutting-edge technology.
- Qualifications: Strong troubleshooting skills and a passion for reliability engineering.
The predicted salary is between 40000 - 50000 £ per year.
- Title and Summary
- Site Reliability Engineer I - Connex
- About Mastercard
Mastercard is a global technology company in the payments industry, dedicated to enabling an inclusive digital economy that benefits everyone, everywhere.
By making transactions safe, simple, smart, and accessible, we empower individuals, financial institutions, governments, and businesses to reach their full potential.
Vocalink, a Mastercard Company, powers the UK’s critical payment infrastructure, including real‑time payments, settlement systems, direct debits, and a nationwide ATM network of nearly 60,000 machines.
Our systems process over 90% of UK salaries, more than 70% of household bills, and almost all state benefit payments.
Opportunity
We are seeking a Site Reliability Engineer I to support mission‑critical applications within the UK’s national payment infrastructure (FPS and CTS).
This role is ideal for someone who thrives in a collaborative, agile environment and is passionate about reliability, continuous improvement, and modern technology.
Key Responsibilities
- Provide second‑line support for mission‑critical applications, ensuring adherence to service priorities and operational standards.
- Support live production environments, including participation in a 24/7 on‑call rota.
- Deliver hotfixes, tooling improvements, and system housekeeping.
- Work within a cross‑functional Scrum team, contributing to application design, delivery, and technical consultancy.
- Manage and implement changes, releases, and fixes in line with governance processes.
- Support and maintain Disaster Recovery (DR) capabilities, including testing, risk management, and alignment with corporate strategy.
- Collaborate with third‑party suppliers for issue resolution and escalation to third‑line support.
- Ensure traceability from business requirements through to acceptance criteria.
- Work closely with Service Management to resolve incidents, define enhancements, and improve system performance.
- Maintain accurate and up‑to‑date technical documentation and artefacts.
- Additional Responsibilities
- Drive innovation in production support, identifying opportunities to improve efficiency through automation and tooling.
- Contribute to the production support strategy and roadmap, including technology selection.
- Collaborate with stakeholders to design and implement effective solutions.
- Participate in iterative, agile deployments as part of a Scrum team using Safe Agile.
- Investigate production issues and perform root cause analysis.
- Required Skills
- Strong communication, organization, and time‑management skills.
- Proven ability to troubleshoot complex systems under pressure.
- Experience in financial services or payments environments.
- Understanding of ITIL practices, change, and release management.
- Familiarity with Agile methodologies and team‑based delivery.
- Knowledge of programming or web technologies is an advantage.
- Strong analytical mindset with a focus on continuous improvement and tooling.
- Personal Attributes
- Passion for production support, diagnostics, and reliability engineering.
- Proactive, self‑driven, and committed to continuous learning.
- Collaborative team player with a flexible, adaptable mindset.
- Motivated to improve processes and embrace emerging technologies.
- Strong ownership mindset with a desire to make a meaningful impact.
- Corporate Security Responsibility
- Abide by Mastercard’s security policies and practices.
- Ensure the confidentiality and integrity of the information being accessed.
- Report any suspected information security violation or breach.
- Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.
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Site Reliability Engineer I - Connex employer: Empowered Cities
Vocalink is an exceptional employer, offering a dynamic work environment where innovation and service excellence are at the forefront of our operations. As a Manager in Service Management Engineering, you will benefit from a culture that prioritises employee growth through continuous improvement initiatives and strong support for professional development. Located in a vibrant area, we provide competitive benefits and foster collaborative relationships with senior stakeholders, ensuring that your contributions are valued and impactful.
