Lead Software Engineer

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
Mastercard Cyber and Intelligence (C&I) delivers world-class risk and security products and services to customers worldwide. Ethoca's Business Applications team is seeking a Senior Software Engineer to support billing operations and improve system processes across our technology landscape.
This role is an important part of a high-performing team and is well suited to someone who combines domain knowledge, relevant experience, and the ability to deliver against detailed requirements.
Key Responsibilities: • Ability to work cross-functionally to share insights, improve process adoption, support system integration, and align technology solutions with business goals and operational needs.• Demonstrated proficiency in designing, integrating, and supporting billing systems, with exposure to platforms such as Snowflake, Oracle ERP, and NetSuite.• Strong understanding of billing operations, revenue recognition principles, financial reporting, and the controls required to support accurate invoicing and reconciliation.• Experience with process mapping, use case development, requirements gathering, analysis, validation, and translating business needs into clear technical outcomes.• Ability to manage multiple priorities simultaneously while maintaining focus on delivery quality, timelines, stakeholder expectations, and measurable outcomes.• Familiarity with data security, privacy regulations, compliance standards, and best practices for protecting sensitive financial and customer information.• Commitment to growing and developing teams by mentoring others, reinforcing strong engineering practices, and encouraging a collaborative team culture.• Proven ability to collaborate across departments and act as a liaison between engineering, product, finance, operations, onboarding, customer success, and business stakeholders.• Proactive approach to identifying improvement opportunities, solving problems creatively, and communicating progress, risks, and decisions with transparency.• Strong focus on software quality, test automation, debugging, continuous improvement, and practical problem solving in complex technical environments.
Qualifications:• Bachelor's degree in computer science, Finance, or equivalent experience.• Strong programming skills in JavaScript, TypeScript/Node.js, Java, Python, Shell, and related scripting technologies.• Familiarity with testing and validating integrations across REST APIs, microservices, SaaS platforms, and iPaaS solutions, including ETL workflows and database-driven systems.• Strong SQL, RDBMS, and Snowflake experience, including relational data modeling, complex queries, joins, stored procedures, performance tuning, test data management, and data validation across Oracle, SQL Server, PostgreSQL, MySQL, and Snowflake.• Familiarity with Salesforce CRM concepts, including data objects, basic integrations, reporting, workflow validation, quality assurance, and testing of Salesforce-enabled business processes.• Basic understanding of NetSuite ERP and related enterprise processes, including billing, revenue recognition, and financial reporting.• Knowledge of Git, CI/CD pipelines, DevOps practices, Agile delivery, and modern software development methodologies across the software development lifecycle.• Exposure to AI-assisted engineering tools, such as GitHub Copilot, Claude CLI, or similar productivity tools.• Payments or financial services domain experience preferred, with familiarity in data security, privacy regulations, compliance standards, and cross-functional process adoption.
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.