Senior Full Stack Engineer

Job Description

Joining Amex Tech means discovering and shaping your contribution to something big. Here, you can work alongside talented tech teams and build a unique career with the Powerful Backing of American Express. With a range of opportunities to work with the latest technologies, and a commitment to back the broader engineering community through open source, our mission is to power your success. Because Amex Tech is powered by our technology, our culture, and our colleagues.

The ICRST First Line Financial Crimes team is looking for a Senior Full Stack Engineer to join our Value Co-Creation (VCC) team. VCC is a collaborative way of working that brings together Business, Product, and Technology partners throughout the product lifecycle to identify dependencies, make decisions, and deliver outcomes faster.

As a Senior Engineer, you will play a key role in designing and building scalable, end-to-end solutions across multiple technology domains. You will collaborate closely with cross-functional partners to translate business objectives into robust technical solutions, while helping drive execution across complex initiatives. This role requires strong technical depth, ownership, and the ability to navigate dependencies, risks, and evolving requirements.

Responsibilities

• Design, develop, and own end-to-end full stack solutions across frontend and backend systems.
• Collaborate with Business, Product, and Engineering teams to translate requirements into scalable technical designs.
• Build modern frontend applications using React and TypeScript, focusing on performance and usability.
• Develop backend services and APIs (Node.js or similar) with strong emphasis on scalability, reliability, and maintainability.
• Contribute to system design and architecture discussions, providing pragmatic and scalable solutions.
• Identify and help resolve dependencies, risks, and technical challenges across value streams.
• Leverage AI-powered developer tools and agents to improve productivity and accelerate development workflows.
• Use AI-assisted approaches for code generation, debugging, and testing while ensuring high-quality outputs.
• Review and validate both peer and AI-generated code for correctness, performance, and maintainability.
• Participate actively in code reviews and contribute to improving overall code quality.

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• Debug and resolve complex, cross-system issues in production environments.
• Contribute to CI/CD pipelines, testing strategies, and automation efforts.
• Stay current with emerging technologies and recommend appropriate adoption.
  
  

Qualifications

• 5–8 years of software engineering experience with full stack development.
• Strong proficiency in JavaScript/TypeScript across frontend and backend.
• Experience with React, HTML5, CSS3, and modern frontend architecture.
• Experience building backend services using Node.js (or similar technologies).
• Experience designing and integrating RESTful APIs; GraphQL is a plus.
• Solid understanding of system design and scalable application development.
• Experience working with databases (SQL and/or NoSQL).
• Strong debugging and problem-solving skills across distributed systems.
• Experience with CI/CD pipelines, testing frameworks, and DevOps practices.

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• Familiarity with cloud platforms and modern application architectures is a plus.
• Knowledge of web accessibility (WAI-ARIA, WCAG) and SEO principles is a plus.
• Strong collaboration and communication skills across cross-functional teams.
• Hands-on experience with AI-assisted development tools (e.g., copilots, chat-based assistants, or agent workflows).
• Ability to critically evaluate and improve AI-generated and human-written code.
• Depending on factors such as business unit requirements, the nature of the position, cost and applicable laws, American Express may provide visa sponsorship for certain positions.
  
  

About Us

At American Express, our culture is built on a 175-year history of innovation, shared values and Leadership Behaviors, and an unwavering commitment to back our customers, communities, and colleagues. From delivering differentiated products to providing world-class customer service, we operate with a strong risk mindset, ensuring we continue to uphold our brand promise of trust, security, and service.

As part of Team Amex, you’ll experience our powerful backing with comprehensive support for your holistic well-being and many opportunities to learn new skills, develop as a leader, and grow your career. Here, your voice and ideas matter, your work makes an impact, and together, you will help us define the future of American Express.

About The Team

We back you with benefits that support your holistic well-being so you can be and deliver your best. This means caring for you and your loved ones' physical, financial, and mental health, as well as providing the flexibility you need to thrive personally and professionally:

• Competitive base salaries
• Bonus incentives

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• 6% Company Match on retirement savings plan
• Free financial coaching and financial well-being support
• Comprehensive medical, dental, vision, life insurance, and disability benefits
• Flexible working model with hybrid, onsite or virtual arrangements depending on role and business need
• 20+ weeks paid parental leave for all parents, regardless of gender, offered for pregnancy, adoption or surrogacy
• Free access to global on-site wellness centers staffed with nurses and doctors (depending on location)
• Free and confidential counseling support through our Healthy Minds program
• Career development and training opportunities
  
  

For a full list of Team Amex benefits, visit out Colleague Benefits Site .

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. American Express will consider for employment all qualified applicants, including those with arrest or conviction records, in accordance with the requirements of applicable state and local laws, including the California Fair Chance Act, the Los Angeles County Fair Chance Ordinance for Employers, and the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance. For positions covered by federal and/or state banking regulations, American Express will comply with such regulations as it relates to the consideration of applicants with criminal convictions.

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.

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The below represents the expected salary range for this job requisition. Ultimately, in determining your pay, we’ll consider your location, experience, and other job-related factors.