Principal Application Engineer (SRE)

Discover. A brighter future.
With us, you'll do meaningful work from Day 1. Our collaborative culture is built on three core behaviors: We Play to Win, We Get Better Every Day & We Succeed Together. And we mean it - we want you to grow and make a difference at one of the world's leading digital banking and payments companies. We value what makes you unique so that you have an opportunity to shine.
Come build your future, while being the reason millions of people find a brighter financial future with Discover.
Job Description:
What You'll Do
The Principal Application Engineer (SRE) will be the lead SRE for the International Switch area. In this role, the employee will support a payment switch application in production and lead the efforts around audits (PCI, RBI, SOX). This role will involve troubleshooting the highest profile applications in the company and will involve communicating with VPs and SVPs on production incident calls
Uses vast repertoire of delivering high impact software solutions to work intuitively. Speed comes from intuition. If something breaks you know where to look. Typically does the tough parts - e.g. (re)design and spends more time documenting than coding.
Actively manages and escalates risk and customer-impacting issues within the day-to-day role to management.
How You'll Do It

• Creates technology solutions addressing high impact business priorities. Demonstrates the ability to analyze, design, code, test and deploy solutions and product features with high quality to production. Level of technical expertise enables solutions with high complexity and depth.
• Competent in multiple technical domains, including programming languages, security, automation, testing, and business domains. As a result, is the go-to person for many people outside of their team.
• Participates in strategic technology decisions and understands how these decisions impact Discover as a whole.
• Proactively identifies and mitigates issues based on intuition and experience in multiple domains. Is a thought leader amongst team members and drives problem solving to determine root cause.
• Coaches technology communities at Discover in areas of specific technology domain, design-thinking, agile software development way of working, security, architecture and/or data engineering.

Qualifications You'll Need
Minimum Requirements

• Bachelor's in Computer Science, Engineering, Informatics, Information Security, Information Technology, or related
• Experience in Information Technology, (Software) Engineering, or related
• Internal applicants only: technical proficiency of proficient on the Dreyfus engineering scale.

Physical and Cognitive Requirements
The physical requirements described here are representative of those that must be met by an employee to successfully perform the essential functions of this position. Reasonable accommodations may be made to enable a qualified individual with disabilities to perform the essential functions of the position as required by federal, state, and local laws:

• Primarily remain in a stationary position.
• No required movement about the work environment to complete the major responsibilities of the job.
• Primarily performed indoors in an office setting.
• Ability to operate office equipment such as but not limited to computer, telephone, printer, and calculator.
• Ability to communicate verbally. Ability to communicate in written form.
• Travel Requirements - No

Preferred Requirements

• Payments Transaction Processing Experience for international network authorization switch
• SRE background
• Terracotta
• WebSphere
• Experience with 5 9's highly available systems
• Experience with International Payments Authorization processing and flows

External applicants will be required to perform a technical interview.
Discover will not sponsor or transfer employment work visas for this position. Applicants must be currently authorized to work in the United Kingdom on a full-time basis.
Application Deadline:
The application window for this position is anticipated to close on Aug-13-2025. We encourage you to apply as soon as possible. The posting may be available past this date, but it is not guaranteed.
What are you waiting for? Apply today!
All Discover employees place our customers at the very center of our work. To deliver on our promises to our customers, each of us contribute every day to a culture that values compliance and risk management.
Discover, a division of Capital One, N.A., is an equal opportunity employer and does not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, protected veteran status, or other legally protected status. (Know Your Rights)
Discover complies with federal, state, and local laws applicable to qualified individuals with disabilities and is committed to providing reasonable accommodations. If you require a reasonable accommodation to search for a position, to complete an application, and/or to participate in an interview, please email [email protected] . Any information you provide regarding your accommodation needs will be kept confidential and will only be used to determine and provide necessary accommodation.
Positions marked as remote eligible are limited to remote locations within the country in which the position is based.
Applicants must be 18 or older at the time of hire.