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American Express Senior Engineer - Agile in Helena, Montana


You Lead the Way. We’ve Got Your Back. At American Express, we know that with the right backing, people and businesses have the power to progress in incredible ways. Whether we’re supporting our customers’ financial confidence to move ahead, taking commerce to new heights, or encouraging people to explore the world, our colleagues are constantly redefining what’s possible — and we’re proud to back each other every step of the way. When you join #TeamAmex, you become part of a diverse community of over 60,000 colleagues, all with a common goal to deliver an exceptional customer experience every day.

Why American Express?

There’s a difference between having a job and making a difference.

American Express has been making a difference in people’s lives for over 160 years, backing them in moments big and small, granting access, tools, and resources to taken on their biggest challenges and reap the greatest rewards.

We’ve also made a difference in the lives of our people, providing a culture of learning and collaboration, and helping them with what they need to succeed and thrive. We have their backs as they grow their skills, conquer new challenges, or even take time to spend with their family or community. And when they’re ready to tackle a new career path, we’re right there with them, giving them the guidance and momentum into the best future they envision.

The powerful backing of American Express. Don’t make a difference without it!

As an Application Security Sr. Engineer for Application Portfolio Management, you will…

  • Lead a strong group of full stack engineers.

  • Design features, solve problems, debug, document and develop software and systems that meet the needs of internal users.

  • Maintain platform health through uplifts, vulnerability remediation, and ensuring enterprise resiliency.

  • Use modern technology stacks to enable build at scale, high-quality delivery and automated deployment.

  • Build in quality and leverage a Dev Ops mindset to improve operational efficiency.

  • Adopt a collaborative approach to strategic discussions, thinking outside of the box, and challenging the status-quo.

  • Take proactive approach to spotting problems, areas for improvement, and performance bottlenecks.

  • Lead the deployment, support, and monitoring of software across development, test, and production environments.


  • Function as a technical leader on an Agile team by providing technical expertise, thought leadership, and contributing to technical delivery through consistent engineering practices (usage of enterprise tools, reusable components, and technical documentation).

  • Hands-on engineering expertise in developing complex, large scale enterprise applications.

  • Responsible for technical aspects of software engineering for assigned applications including design, developing prototypes, and coding assignments.

  • Partners with customers and other internal teams and technical product managers to deliver improvements to the platform.

  • Apply specialized knowledge of industry standards or practices to assigned initiatives in order to identify complex and or broad problems and issues and formulate recommendations.

  • Collaborate with leadership across teams to define solutions and technical implementations to drive software maturity and practices.

  • Provide technical mentorship to software engineers at all levels.

  • Drive both high-level and detailed technical designs and conduct design reviews as needed.

  • Implement new, highly scalable platform components.

  • Improve and maintain existing components of the core platform.

  • Employ technical expertise to help team members overcome technical problems.

  • Maintain health and quality of the code across the portfolio, including leadership over SCM, functional testing, and CI/CD tool integration.

  • As part of our diverse tech team, you can architect, code and ship software that makes us an essential part of our customers’ digital lives. Here, you can work alongside talented engineers in an open, supportive, inclusive environment where your voice is valued, and you make your own decisions on what tech to use to solve challenging problems. Amex offers a range of opportunities to work with the latest technologies and encourages you to back the broader engineering community through open source. And because we understand the importance of keeping your skills fresh and relevant, we give you dedicated time to invest in your professional development. Find your place in technology on #TeamAmex.

Minimum Qualifications:

  • Bachelor’s Degree in computer science, computer science engineering, or related field required.

  • 8 years of paid engineering experience.

  • 3 years experience building backend applications using NodeJS.

  • 3 years experience coding in JavaScript.

  • 3 years experience with xPaaS (Redis, Kafka, Elasticsearch, ELK stack, Splunk etc.).

  • 3 years experience with CI/CD tools including GIT, Jenkins, and XLR.

  • 3 years experience in building fault-tolerant, scalable solutions.

  • 3 years experience with NoSQL databases.

  • 3 years experience with enterprise-grade APIs (GraphQL, JSON, XML, etc.).

  • 3 years experience using Service Oriented Architecture design principles and implementationpatterns.

  • 3 years experience in diagnosing, resolving, and preventing the recurrence of system outages.

  • 3 years experience mentoring junior engineers.

Preferred Qualifications:

  • 8 years of active engineering experience in a complex environment and/or comparable experience such as successful engineering and deployment of enterprise-grade technology assets in an Agile product environment.

  • Knowledge of omni-channel design patterns and reusability considerations.

  • Experience in building fault-tolerant, scalable solutions.

  • Proficient in cross-platform integration.

  • Advanced engineering skill with wide-ranging experience; able to resolve complex issues in creative and effective ways.

  • Ability to handle multiple priorities and deadlines with independent judgment.

  • Passion for learning new technologies, industry trends and deep technical curiosity.

  • Excellent written and verbal communication skills.

  • Advanced degree


We back our colleagues with the support they need to thrive, professionally and personally. That's why we have Amex Flex, our enterprise working model that provides greater flexibility to colleagues while ensuring we preserve the important aspects of our unique in-person culture. Depending on role and business needs, colleagues will either work onsite, in a hybrid model (combination of in-office and virtual days) or fully virtually.

If the role you are applying for is designated as hybrid or onsite, you will be required to demonstrate that you have completed your primary COVID-19 vaccination series (i.e. 2 doses for Moderna/Pfizer and 1 dose for J&J), in order to work in or visit any of our offices. This requirement is subject to legally required accommodations.

Employment eligibility to work with American Express in the U.S. is required as the company will not pursue visa sponsorship for these positions.

American Express is an equal opportunity employer and makes employment decisions without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran status, disability status, age, or any other status protected by law.

Job: Technology

Primary Location: United States

Schedule Full-time

Req ID: 22026581