🟒 Actively Hiring · 9d ago ⏳ Closes in 82 days πŸ‡¬πŸ‡§ UK Corridor πŸ›‘οΈ UK Work Eligibility 🏒 Company - Public

Software Engineer II

🏒 Mastercard · πŸ“ Dunstable, England · πŸ•’ Oct 14, 2026 · Ref: OP-VERIF-998C7B2C
Benchmark Compensation (Annual Base)
Salary Disclosed on Application
Full Benefits Package
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Position Overview & Specifications

Our Purpose We work to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. We cultivate a culture of inclusion for all employees that respects their individual strengths, views, and experiences. We believe that our differences enable us to be a better team – one that makes better decisions, drives innovation and delivers better business results. Job Title Software Engineer II Overview
Vocalink, a Mastercard company technologies power the UK’s real-time payments, settlements and direct debit systems, as well as a network of nearly 55,000 UK ATMs. We process over 90 percent of salaries, more than 70 percent of household bills and almost all state benefits.
Are you a leader, influencer and innovator?
Do you want to be part of an agile software development, collaborative environment?
Are you motivated to be a part of software engineering team who supports UK direct debit systems?
Do you love to solve problems and find creative solutions?

Role
Software Engineer II
  • Participate in all phases of the development lifecycle to ensure Non-Functional requirements are considered across the board
  • Review product requirements, functional and design specifications and work with Business Analysts to determine and NFT requirements
  • Ensure testing is carried out to quality standards and evidenced for audit
  • Provide input to continuous improvement within the testing function and the wider IT function
  • Produce testing documentation for new and existing applications/NFT processes
  • NFT Defect management
  • Work closely with project, analysis, architecture, Infrastructure, development and support teams
  • Make sure that NFT testing has been carried out and signed off as fit for purpose to go Live for Volume Performance & Reliability and Availability aspects (V&P and R&A)

All about You/Experience & Skills
  • 3+ years test experience
  • Non-Functional test experience
  • ISTQB Foundation Level
  • Significant Test planning experience
  • Strong understanding of Testing using the Agile process SCRUM methodology
  • Experienced in using and creating JMeter & LoadRunner automated scripts
  • Strong Analytic skills to aid in load profiling and investigation of performance issues (Good problem solving)
  • Experience using a range of Performance and Load testing tools for Execution, monitoring and analysis (JMeter)
  • Programming language – C# & JavaScript
  • Experience working in teams of testers
  • Ability to work within high pressure situations
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.
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