# Senior Software Engineer at Mastercard

Mastercard is hiring a Senior Software Engineer in London, United Kingdom. Level rates it Little AI ●○○○; you can [apply on Mastercard](https://jobsbylevel.com/go/db78b067-c2ad-417d-bd46-1f08dae9d813?utm_medium=ai-agent).

AI Level 1, AI centrality 27 out of 100. London, England (Angel Lane).

## Details

- Company: [Mastercard](https://jobsbylevel.com/companies/mastercard)
- AI level: AI Level 1 (score 27 out of 100)
- Location: London, England (Angel Lane)
- Posted: October 29, 2026
- Apply: https://jobsbylevel.com/go/db78b067-c2ad-417d-bd46-1f08dae9d813?utm_medium=ai-agent
- Free CV review for this job: https://jobsbylevel.com/cv-review?job=senior-software-engineer-at-mastercard-bd4038

## Description

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. Title and Summary Senior Software Engineer Responsible for the analysis, design, development, and delivery of software solutions. Defines requirements for new applications and customisations while adhering to Mastercard standards, processes, and best practices. Develops, tests, and integrates applications to Mastercard specifications, while providing leadership, mentoring, and technical guidance to team members. Key Responsibilities Solution Design & Development • Design, develop, and implement technical solutions that meet business requirements while aligning with Mastercard standards and best practices. • Evaluate and recommend alternative technical approaches to optimise performance, scalability, and maintainability. • Select appropriate technical frameworks, architectures, and delivery methodologies. Technical Leadership • Lead day-to-day development and maintenance activities, ensuring service level agreements (SLAs) are met. • Drive innovation, quality, cost-effectiveness, and speed to market. • Mentor and guide team members throughout all phases of the Software Development Life Cycle (SDLC). • Deliver technical training sessions and facilitate knowledge-sharing activities. Software Development Lifecycle (SDLC) Ownership • Take ownership of the full SDLC, including: o Requirements gathering and documentation o Solution design and technical specifications o Test strategy and test design o Performance benchmarking o Deployment and release planning o Rollback and contingency planning o Cost, effort, and timeline estimation Operational Support & Incident Management • Perform system maintenance and production support activities. • Investigate incidents, identify root causes, and implement long-term solutions. • Participate in on-call support rotations and pager schedules as required. Technology & Innovation • Research, evaluate, and recommend emerging technologies, frameworks, and industry best practices. • Participate in Proofs of Concept (PoCs) to assess new technologies and vendor solutions. • Contribute to technology roadmaps and strategic technical planning. Stakeholder & Vendor Collaboration • Work closely with internal stakeholders, cross-functional teams, and external vendors. • Coordinate offshore development teams and manage day-to-day delivery activities. • Ensure effective knowledge transfer from vendors to Mastercard teams. Quality Assurance & Governance • Champion quality assurance and quality control processes across the development lifecycle. • Ensure comprehensive test coverage across: o Unit Testing o Integration Testing o System Testing o Performance Testing • Conduct: o Requirements Reviews o Design Reviews o Code Reviews o Security Reviews • Promote continuous improvement of development standards, processes, and engineering practices. Qualifications • Bachelor's degree in Computer Science, Information Technology, Information Systems, Engineering, or equivalent practical experience. Experience • 5+ years of hands-on software development experience using Java and Spring Framework. • Experience developing secure, enterprise-scale solutions. • Previous experience within the Financial Services sector is preferred. • Strong understanding of software engineering principles, methodologies, and best practices. Technical Skills • Java • Spring Framework • Software Architecture & Design • Secure Software Development • System Integration • SDLC Management • Performance Optimisation • Production Support & Incident

The description is cut here. Read the full offer: https://jobsbylevel.com/jobs/senior-software-engineer-at-mastercard-bd4038

Source: https://jobsbylevel.com/jobs/senior-software-engineer-at-mastercard-bd4038

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