Senior Software Engineer
Mastercard•O'fallon, MO
•$115,000 - $184,000•Onsite
About The Position
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. We are seeking an experienced Senior Software Engineer with strong expertise in Golang, cloud-native application development, and AWS-based solutions to support Mastercard's Cloud Connect initiatives. The role will focus on building secure, scalable connectivity platforms that enable customers to connect to Mastercard services from public cloud environments and private networks through modern cloud-native architectures.
Requirements
- Bachelor's degree in Computer Science, Management Information Systems, Engineering, or related field.
- 7+ years of software engineering experience designing, developing, and supporting enterprise applications.
- 2+ years of hands-on experience developing applications using Go (Golang).
- Experience designing, deploying, and operating cloud-native solutions on AWS.
- Strong understanding of AWS networking services including VPC, Transit Gateway, PrivateLink, Route 53, Network Load Balancers, and Direct Connect.
- Experience building and operating containerized applications using Kubernetes, Amazon EKS, Docker, and related cloud-native technologies.
- Strong understanding of distributed systems concepts, scalability patterns, performance optimization, and efficient data structure design.
- Experience conducting code reviews and promoting engineering best practices, software quality, and secure coding standards.
- Knowledge of secure software development practices including authentication, authorization, encryption, secrets management, vulnerability remediation, and application security testing.
- Experience implementing and maintaining automated testing frameworks, including unit, functional, and integration testing.
- Experience with Test-Driven Development (TDD) methodologies.
- Experience with protocol buffers and gRPC.
- Strong understanding of CI/CD pipelines and modern DevOps practices using Git, Jenkins, Artifactory, Docker Registry, and related technologies.
- Experience building and supporting applications on Linux platforms.
- Experience implementing observability and operational readiness practices including logging, monitoring, alerting, and incident response.
- Agile software delivery experience in a globally distributed engineering environment
Nice To Haves
- Experience with Python 3.8 or higher is preferred.
Responsibilities
- Design, develop, and maintain secure, scalable, and resilient cloud-native applications and services using Golang and AWS technologies to support Mastercard's Cloud Connect initiatives.
- Collaborate cross-functionally with product, architecture, engineering, and operations teams to design scalable solutions, systems, APIs, and databases that meet functional and non-functional requirements.
- Contribute to software architecture, technical design reviews, and architectural decision-making, ensuring solutions are maintainable, performant, secure, and aligned with enterprise standards.
- Design and optimize data structures, algorithms, and processing patterns to support high-volume distributed systems and efficient resource utilization.
- Participate in the complete software development lifecycle, including requirements analysis, design, development, testing, deployment, monitoring, and ongoing support.
- Design, develop, and maintain automated unit, functional, and integration tests while promoting test-driven development practices.
- Conduct code reviews and provide technical mentorship to engineering team members, promoting coding standards, software quality, maintainability, and engineering best practices.
- Apply secure coding principles throughout the software development lifecycle, proactively identifying and remediating vulnerabilities through code reviews, security testing, and adherence to Mastercard security standards.
- Contribute to operational excellence by implementing observability, monitoring, logging, alerting, and reliability best practices for cloud-native services.
- Perform root cause analysis, troubleshoot complex production issues, and lead performance tuning efforts to improve system reliability, scalability, and efficiency.
- Work with business partners and stakeholders to understand business needs and translate requirements into technical solutions.
Benefits
- insurance (including medical, prescription drug, dental, vision, disability, life insurance)
- flexible spending account and health savings account
- 16 weeks of new parent leave
- up to 20 days of bereavement leave
- 80 hours of Paid Sick and Safe Time
- 25 days of vacation time
- 5 personal days
- 10 annual paid U.S. observed holidays
- 401k with a best-in-class company match
- deferred compensation for eligible roles
- fitness reimbursement or on-site fitness facilities
- eligibility for tuition reimbursement
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What This Job Offers
Job Type
Full-time
Career Level
Senior
