# Principal Software Engineer

**Company**: Mastercard
**Location**: O'Fallon, Missouri
**Experience**: senior
**Job type**: full-time
**Salary**: $170,000 - $281,000 USD
**Category**: Engineering
**Industry**: Technology

**Apply**: https://mastercard.wd1.myworkdayjobs.com/en-US/CorporateCareers/job/OFallon-Missouri/Principal-Software-Engineer_R-287283?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_e957612c-1c8

## Description

We are seeking a Principal Software Engineer to join our Architecture & Technology team, driving enterprise engineering strategy, architecture standards, and technology excellence across Mastercard.

As a senior individual contributor, you will provide deep technical leadership across distributed systems, cloud-native platforms, resiliency, observability, and software engineering practices, influencing technology direction across multiple teams and domains.

Key responsibilities:

- Provide technical leadership and architectural guidance across multiple engineering organizations

- Partner with platform CTOs, architects, and engineering leaders to evaluate technology investments and transformation initiatives

- Lead architecture reviews and technical design discussions to improve scalability, resiliency, security, performance, and operational excellence

- Define and evolve enterprise architecture patterns, reference implementations, and reusable engineering capabilities

- Serve as a recognized subject matter expert in cloud-native technologies, distributed systems, platform engineering, observability, and reliability engineering

- Design and develop AI-enabled engineering tools, architecture assistants, and knowledge platforms to improve engineering productivity and decision-making

- Drive adoption of AI-powered capabilities that make architecture standards, design guidance, and engineering best practices more accessible across the organization

- Influence the evolution of Engineering Principles, SDLC, Secure Software Lifecycle Standards, and architecture governance practices

- Guide engineering teams in selecting technologies, architectures, and platform capabilities that align with Mastercard's strategic objectives

- Promote build-once-run-many, platform reuse, and operational excellence through shared capabilities and engineering best practices

- Collaborate with Security, Infrastructure Engineering, Product Engineering, and Business Operations teams to strengthen engineering effectiveness and operational readiness

- Create technical thought leadership, architecture guidance, standards documentation, and executive-level communications that influence organizational engineering direction

- Mentor senior engineers and architects while fostering a culture of engineering excellence, innovation, and continuous improvement

Requirements:

- Extensive experience designing and delivering highly scalable, resilient, and secure enterprise software solutions

- Deep expertise in software architecture, cloud platforms, microservices, distributed systems, and platform engineering

- Proven ability to influence technical strategy and architectural direction across multiple teams and business domains

- Strong experience establishing engineering standards, governance models, architecture frameworks, and operational excellence practices

- Expertise in reliability engineering, observability, performance optimization, and production operations

- Experience developing reusable platforms, shared services, and enterprise technology capabilities

- Strong understanding of modern software delivery practices, CI/CD, infrastructure automation, and DevSecOps methodologies

- Experience evaluating emerging technologies and translating technical innovation into business value

- Demonstrated success driving cross-functional technical decisions through influence and collaboration

- Exceptional communication skills with the ability to engage technical teams, executives, and business stakeholders

- Strong analytical, problem-solving, and strategic thinking capabilities

- Passion for innovation, continuous learning, and advancing engineering excellence at enterprise scale

Benefits:

- Competitive base salary

- Annual bonus or commissions

- Insurance (medical, prescription drug, dental, vision, disability, life insurance)

- Flexible spending account and health savings account

- Paid leaves (new parent leave, bereavement leave)

- Paid Sick and Safe Time

- Vacation time and personal days

- 401k with company match

- Deferred compensation for eligible roles

- Fitness reimbursement or on-site fitness facilities

- Eligibility for tuition reimbursement

## Skills

### Required
- Software Architecture
- Distributed Systems
- Cloud Platforms
- Microservices
- Platform Engineering
- Reliability Engineering
- Observability & Monitoring
- AI/LLM Engineering Solutions
- DevSecOps & CI/CD
- Performance & Scalability
- Technical Strategy
- Architecture Governance
- Enterprise Integration
- Engineering Standards & Best Practices

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Source: [Apply at mastercard.wd1.myworkdayjobs.com](https://mastercard.wd1.myworkdayjobs.com/en-US/CorporateCareers/job/OFallon-Missouri/Principal-Software-Engineer_R-287283?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)