Lead Software Engineer (Connex)

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

Lead Software Engineer (Connex)

Overview
We are seeking a talented Lead Connex Software Development Engineer to join our engineering organisation supporting UK Critical National Infrastructure (CNI) payment products, based in Pune. This role operates within a globally distributed delivery model, partnering closely with established onshore teams to deliver and maintain high-availability, mission-critical systems. The successful candidate will contribute to the ongoing evolution and stability of key payment platforms within a scaled Agile (SAFe) environment.

Role
The Software Engineer will be responsible for:
• Agile Delivery (SAFe Framework)
Working within an established Scrum team aligned to SAFe, contributing to sprint planning, execution, and continuous improvement initiatives.
• Distributed Team Collaboration
Collaborating closely with onshore engineering teams to deliver features, resolve defects, and ensure seamless integration across the delivery lifecycle.
• Application Development & Maintenance
Designing, developing, and maintaining solutions across a multi-technology stack.
• Production Support & Reliability
Supporting critical live systems, ensuring performance, resilience, and adherence to enterprise standards and controls.
• Continuous Improvement
Contributing to engineering best practices, automation, and process enhancements to improve delivery efficiency and quality.

All About You
We are looking for a technically strong and collaborative Software Engineer who thrives in a complex, enterprise-scale environment. Key requirements include:
• Highly experienced in Connex on HP NonStop development background.
• Understanding of financial industry hardware such as HSM’s HP Nonstop and related standards and security requirements including PCI and OWASP.
• Understanding of online payment transaction processing.
• Experience of TCP/IP and communication protocols.
• Strong knowledge of TAL, COBOL, SCOBOL and TACL.
• Knowledge of HP Non-Stop protocols, security and utilities.
• Strong understanding of financial industry protocols including ISO8583, ISO20022, LIS5, VISA, MasterCard or ATM message protocols.
• Knowledge of some of GoldenGate, Electronic File Transfers, Java, UNIX, Spring, Hibernate, XML.
• Proven development experiences a solid background as a developer across various platforms.
• Proven technical testing experience within Agile environments, particularly with BDD methodologies.
• Be comfortable with regular demonstrations to stakeholders and comfortable with pair programming.
• Exceptional communication skills, with the ability to collaborate effectively within a multidisciplinary team.
• Excellent time management and organisational abilities.
• Strong problem-solving skills and a proactive attitude.
• Genuine passion for testing, development, and technology design across diverse full stack platforms.
• Demonstrated experience in both functional and non-functional automated testing.

Desirable experience:
• Hands-on automation testing expertise using open-source technologies such as Selenium, Cucumber, Gherkin, Spring, etc.

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, and
• Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.