Senior 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
Senior Software Engineer
Who is Mastercard?
Mastercard is a global technology company in the payments industry. Our mission is 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 (DQ) drives our culture and everything we do. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Overview
The MSBX Program supports Mastercard software builders by providing consistent, standardized tooling and engineering insights across the SDLC-including design, development, testing, and delivery-so teams can build and operate software with confidence and efficiency.
We are seeking a Senior Software Engineer to help design and build a regional observability data lake, enabling reliable, secure, and actionable insights across cloud-native services. This role blends software engineering, cloud platform development, and observability engineering to improve operability at scale.
Role & Responsibilities
As a Senior Software Engineer on the MSBX Program, you will:
Design and implement key components of a regional observability data lake, supporting ingestion, storage, and access patterns for logs, metrics, traces, and events in cloud environments.
Build and integrate services that improve the developer ecosystem and operational experience, focusing on reliability, usability, and standard patterns.
Contribute to automation and simplification of software delivery and operational workflows (CI/CD, IaC, integrations).
Partner with product owners and stakeholders to refine requirements and deliver iteratively, including demos and acceptance discussions. [Software E...n Template | Word]
Troubleshoot complex service dependencies and participate in cross-functional problem-solving to drive resolution. [Software E...n Template | Word]
Apply an SRE mindset: design for resiliency, supportability, and observability across layers of the stack. [Software E...n Template | Word]
Contribute to architecture and design reviews; share best practices through the Software Engineering Guild and MSBX community.
Advocate for Mastercard Engineering Principles, MSBX development standards, and Corporate Security guidelines in day-to-day engineering decisions.
Required Qualifications
Bachelor's degree (or equivalent practical experience) in Computer Science, Engineering, or related field, plus relevant industry experience in software engineering and cloud systems.
Strong hands-on software engineering experience building and operating distributed services in cloud environments.
Working knowledge of observability concepts and tools (logging, metrics, tracing) and how they support operational excellence.
Experience with cloud providers (AWS and/or Azure), including identity/access controls, integration patterns, and automation. AWS experience is a plus.
Experience with Kubernetes and containerized workloads; familiarity with managed Kubernetes services is beneficial.
Experience with infrastructure automation and CI/CD tooling (e.g., Terraform/CloudFormation, pipelines, delivery automation).
Proficiency in one or more languages such as Java or C# (or similar).
Preferred Qualifications
AWS cloud experience (preferred).
Experience with Splunk monitoring/logging (or comparable platforms).
Experience supporting cloud-based developer tooling and standardized SDLC platforms.
Familiarity with multi-region considerations (resiliency, DR, locality, data residency) for platform services.
All About You
You take ownership of deliverables end-to-end and enjoy building practical solutions to complex engineering problems.
You communicate clearly and collaborate effectively across engineering, product, and stakeholder teams.
You enjoy mentoring and supporting other engineers through code reviews, pair programming, and shared best practices.
You are thoughtful about security and reliability, especially in regulated environments.
You value standards, reuse, and automation to improve developer productivity and operational outcomes.
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.