Principal Software Engineer (C#, .Net Core, 16+ years)

Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and government entities in more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable, and secure payments network, enabling individuals, businesses, and economies to thrive while driven by a common purpose – to uplift everyone, everywhere by being the best way to pay and be paid.

Make an impact with a purpose-driven industry leader. Join us today and experience Life at Visa.

Authorize.net makes it simple to accept electronic and credit card payments in person, online or over the phone. We’ve been working with merchants and small businesses since 1996. As a leading payment gateway, Authorize.net is trusted by more than 445,000 merchants, handling more than 1 billion transactions and USD 149 billion in payments every year.

As a Principal Engineer at Authorize.net (a Visa solution), you will be a hands-on technical leader working across multiple teams to modernize our systems and deliver innovative online payment solutions. You will be instrumental in containerizing applications, splitting monolithic codebases into microservices, and migrating on-premises workloads to the cloud. In addition, you will enable process improvements through robust DevOps practices, incorporating comprehensive release management strategies and optimized CI/CD pipelines.

Beyond modernization, you will also guide the development of major new features by translating complex business problems into technical solutions that resonate with our merchants and partners. You will also drive cross-team projects that standardize our approach to API development and data schemas, ensuring consistent implementation of best practices across the organization.

Collaborating with product managers, tech leads, and engineering teams, you will define technology roadmaps, communicate architectural decisions, and mentor engineers in advanced technical approaches. This position requires a solid track record of delivering large-scale, reliable, and secure software solutions. While we prefer C# expertise, knowledge of other modern programming languages is also welcome.

This is a hybrid position. Hybrid employees can alternate time between both remote and office. Employees in hybrid roles are expected to work from the office 2-3 set days a week (determined by leadership/site), with a general guidepost of being in the office 50% or more of the time based on business needs.

• 
  16-20 years of relevant work experience with a Bachelor’s Degree or with an Advanced degree.
• Advanced level coding skills in C#, .Net Core, ASP.Net. Java experience is a plus
• Familiarity with continuous delivery and DevOps practices, including infrastructure automation, monitoring, logging, auditing, and security
• Hands-on knowledge of cloud platforms (e.g., AWS, Azure, or GCP) for scalable deployment strategies
• Understanding of integration patterns, API design, and schema standardization for enterprise systems
• Prior exposure to NoSQL data stores (e.g., HBase, Cassandra) is beneficial
• Experience with merchant data or payment technology is a plus
• Excellent communication skills, with a proven ability to mentor and guide engineering teams at scale

Visa is an EEO Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.