At a Glance
- Tasks: Support mission-critical applications and ensure system reliability in a collaborative environment.
- Company: Mastercard, a global leader in digital payments and technology.
- Benefits: Competitive salary, inclusive culture, and opportunities for continuous learning.
- Other info: Dynamic role with opportunities for innovation and career growth.
- Why this job: Join a team that powers the UK's payment infrastructure and make a real impact.
- Qualifications: Strong communication skills and a passion for production support and reliability engineering.
The predicted salary is between 35000 - 45000 £ per year.
Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
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. Our culture is driven by our Decency Quotient (DQ), which shapes how we work both internally and externally. Operating across more than 210 countries and territories, we are committed to building a sustainable world that unlocks priceless possibilities for all.
About Vocalink (a Mastercard Company) Vocalink 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
- Almost all state benefit payments
The 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
The position would suit somebody with the following skills:
- Strong communication, organisation, 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 All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
- 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, and
- Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.
Site Reliability Engineer I - Connex employer: Mastercard
As a Senior Site Reliability Engineer at Connex, you will be part of a dynamic team dedicated to maintaining the UK's national payment infrastructure, where innovation and collaboration are at the forefront of our work culture. We offer a supportive environment that prioritises continuous improvement and professional growth, alongside competitive benefits and a commitment to work-life balance. Join us in making a meaningful impact in the financial services sector while enjoying the unique advantages of working in a cutting-edge technology space.
StudySmarter Expert Advice🤫
We think this is how you could land Site Reliability Engineer I - Connex
✨Join the IT Consultancy Buzz
Get involved in local or virtual IT consultancy meetups and forums. This is where we can rub shoulders with industry professionals, get insights into what Mastercard values, and even spot unadvertised opportunities. Don't miss out on these chances to make a name for ourselves in the IT world!
✨Show Off Your Skills
Create a personal project or case study relevant to the challenges Mastercard might face. Use platforms like GitHub or Medium to share your findings. This not only demonstrates our consulting skills but shows a proactive attitude, making us stand out from the crowd when applying for that full-time gig.
✨Leverage LinkedIn for Connections
Follow and engage with the relevant thought leaders and influencers in IT consultancy on LinkedIn. Share insightful content and join discussions to gain visibility. A well-placed comment or shared article could catch the attention of someone at Mastercard!
✨Direct Apply to Mastercard
Let's not forget to apply directly through the Mastercard website! Tailor your application to showcase our understanding of their consulting style and how we can contribute to their projects. A personalised approach can make a huge difference in landing that full-time position!
We think you need these skills to ace Site Reliability Engineer I - Connex
Some tips for your application 🫡
Showcase Your Problem-Solving Skills:In IT consulting, it's all about problem-solving, so make sure your CV highlights your analytical skills and any relevant projects you've tackled. Mention specific technologies or methodologies you've used to resolve issues or improve processes; this shows you can think critically and deliver results, which is vital for us at Mastercard.
Highlight Relevant Certifications:Certifications like ITIL, PMP, or even specific tech stack qualifications can really make you stand out. Make sure to include these in your CV, as they not only demonstrate your expertise but also your commitment to staying current in the field. We love seeing candidates who are proactive about their professional development!
Tailor Your Cover Letter:Your cover letter is your chance to connect personally with us at Mastercard. Share stories about your experiences in IT consulting, and how they shaped your desire to join our team. Mention why you’re excited about this particular role, and how you see yourself contributing to our projects.
Keep It Clear and Concise:We're all busy, so make sure your application is easy to read. Use bullet points for key achievements, and don’t overload us with jargon. A clean, professional layout goes a long way. Remember, the clearer your application, the more likely we are to invite you in for an interview!
How to prepare for a job interview at Mastercard
✨Brush Up on Your Technical Skills
For an IT consulting role, be ready to demonstrate your technical prowess. You might face questions on systems integration, cloud technologies, or even troubleshooting specific software. If you have experience with tools like AWS, Azure, or even specific programming languages, make sure you can talk about them fluently.
✨Showcase Your Problem-Solving Approach
IT consulting is all about solving problems for clients. Think about how you can illustrate your approach to a past challenge using the STAR method (Situation, Task, Action, Result). It's a great way to show how you tackle complex issues and come up with effective solutions.
✨Know the Business Impact of IT Solutions
When discussing your experiences, focus not just on the tech solutions you implemented, but also on their business impact. Employers want to see that you can connect IT with organisational goals. Prep examples that highlight how your tech contributions improved efficiency or reduced costs for past clients or projects.
✨Prepare for Behavioural Questions
Since IT consulting often involves teamwork and client interactions, expect behavioural questions that assess your interpersonal skills. Be prepared with examples that demonstrate your adaptability, communication skills, and how you handle client feedback. Before the interview, think of situations where you worked closely with clients to create effective IT strategies or changes.
