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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - **Company:** Mastercard - **Location:** O'Fallon, MO, United States - **Salary:** $204,000.0 - $337,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Amazon Web Services, Application Integration Architecture, Computing Platforms, Microsoft Azure, C Sharp (Programming Language), Cloud Computing Security, Code Review, Cyber Security, Node.Js, Open Source Technology, Pair Programming, Scrum Methodology, Systems Development Life Cycle, Reliability Engineering, Software Engineering, Systems Integration, Web Services, Performance Testing, Multi-Cloud, Containerization, Kubernetes, Programming Languages - **Published:** August 16, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3356000787&tx=JR7367FFI&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * 12+ Years of lead software engineering experience * Deep, applied knowledge of designing, Implementing and supporting internal development platforms in a multi cloud environment * Deep understanding of cloud providers including AWS and Azure (Services, Access controls, Integration and Automation....etc) * Solid understanding of cloud security In highly regulated market segments and countries. * Solid experience with site reliability engineering mindset and creating solutions that are resilient, supportable and observable at all layers of the stack * Deep understanding of automation using various tools * Deep understanding of observability In a cloud environment * Solid understanding of pure Kubernetes and cloud provider based managed services Kubernetes * Proficient in web service design, standards, best practices and Implementation * Deep understanding of containerization and designing ephemeral solutions * Proven track record of delivering solutions to complex, multi-domain environments * Ability to articulate complex designs and solutions to people with varying levels of technical aptitude * Experienced in guiding less experienced engineers with the use of pair programming, code reviews, design reviews, etc. * Deep knowledge in migration from legacy technologies and mindset to the best In class solutions for the cloud * Self-Driven and able to navigate complex organizational environments * Strong communication skills both written and verbal * Strong collaboration skills and ability to gain alignment / buy-in on any solutions that will require cross functional support * Strong understanding of different project management methodologies Including waterfall and Agile/Scrum * Strong understanding of all phases of the SDLC process from design to deployment. * Enthusiastically engages engineers across technology organizations to promote standard software patterns and reuse of common libraries and services with experience leading open-source development efforts * Leads by example in establishing enterprise-wide standards for application integration and identifies/ anticipates future requirements to support business needs * Champions performance engineering practices to ensure that performance meets (or exceeds) expectations; educates stakeholders on performance testing processes, methodology, performance and scalability metrics, capacity modeling techniques, and testing approaches * Understands software development productivity metrics (e.g., code churn, commit size, commits/story) and help teams to remove blockers and continuously improve code velocity, quality, and release frequency * Experienced with NodeJS, Java, C# and other programming languages ## Description * Lead the design and Implementation of the Internal Developer Portal and Platform * Drive patterns and standards for Internal Developer Platform integration and automation * Create mechanisms to ensure alignment to those standards and best practices In an automated fashion * Lead by example with hands-on approaches to demonstrate engineering excellence * Mentor and guide software engineers and lead the team to improve engineering productivity, quality, and technology policy compliance * Identify opportunities for reuse and Improved efficiency * Engage with IT and Business partners, product owners and stakeholders to create meaningful roadmaps to ensure the most Important work Is prioritized * Champion all Mastercard engineering principles * Actively participate as a member of the Software Engineering Guild sharing your knowledge, best practices, ideas, and passion for technology * Help Identify and drive meaningful behavior changing metrics, 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. ## Related Videos - [The Open-source Java SDK for Multi-Cloud Development - Sandeep Pal](https://www.wearedevelopers.com/videos/2113-the-open-source-java-sdk-for-multi-cloud-development-sandeep-pal) - [Stop using Node.js like in 2020! What changed and what you can do today with Node.js](https://www.wearedevelopers.com/videos/100011-stop-using-node-js-like-in-2020-what-changed-and-what-you-can-do-today-with-node-js) - [Understanding Kubernetes in a visual way](https://www.wearedevelopers.com/videos/100085-understanding-kubernetes-in-a-visual-way) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Stop Using Node.js Like It’s 2020! - Alfonso Graziano](https://www.wearedevelopers.com/videos/1863-stop-using-node-js-like-it-s-2020-alfonso-graziano) - [Throwing off the burdens of scale in engineering](https://www.wearedevelopers.com/videos/608-throwing-off-the-burdens-of-scale-in-engineering) ## Related Articles - [The Best X (Twitter) Accounts for Developers](https://www.wearedevelopers.com/magazine/294-the-best-x-twitter-accounts-for-developers) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers)