Senior Engineer

New York, NY, United States

American Express


Application Experience

Role Location

  • New York, NY, United States


501+ people


200 Vesey St
New York, NY, 10285, US

Tech Stack

  • Java
  • Javascript
  • React
  • Node.js
  • PostgreSQL
  • DB2
  • Redux
  • CSS
  • HTML
  • Kotlin
  • iOS
  • Android
  • Go
  • Hadoop

Role Description

We are currently looking for a phenomenal senior JavaScript Engineer who is proficient in React.js and Node.js. Your primary focus will be driving front-end and API development standards and contributing to architecting solutions and enhancing frameworks. Your solutions should be reusable, simple and extendable. You must have 6-10 years of professional software development experience. You should have a history of maintaining a high-performance, reliable, secure, scalable codebase. You will align and coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a dedication to collaborative problem solving, sophisticated design, and quality product is important.


Software Development • Lead and mentor other engineers on React.js, Node.js, JavaScript languages and best practices. Collaborate with other tech leads to define architecture and design of solutions • Building reusable components and front-end libraries for team’s use • Optimizing components for maximum performance across different browsers • Manage technical risk and debt for the team • Write code that is clean, secure, maintainable, and easy to understand • Build solutions for diverse user requirements such as Internationalization, Accessibility • Build customizable, reusable pieces to be used throughout multiple applications following design patterns for separation of concerns, code re-usability, security and performance. • Improve the reliability and efficiency of our inner systems. • Empower teams to automate deployments in test or production environments • Lead code reviews and automated testing • Ensure frictionless CI/CD pipeline from the teams

Leadership • Communicate and coordinate with cross-functional business units, offshore, contractors and third-party development teams • Recognize process and code inefficiencies, and proactively recommend solutions • Bring the culture of innovation, ideas, and continuous improvement • Influence team members by challenging status quo, demonstrating risk taking, and implementing creative ideas • Be a productivity multiplier for your team by analyzing current state and enable the team to be more effective, productive, and deliver faster and stronger results. • Takes accountability for the success of the team achieving their goals • Possibly manage and mentor teams of junior and senior engineers through ongoing development efforts


Skills • Strong Computer Science fundamentals with competencies in software design, data structures, and problem-solving • 3 or more years of React.js and Node.js experience • Extensive use of APIs and hands on experience with Redis • Experience in SOA, REST, Micro Services System Architecture • Deep understanding of React.js and its core principles • Ability to identify and solve JavaScript specific quirks • Understands React under-the-hood, and can architect React design patterns in accordance with the library’s purpose ( e.g. declarative programming ). • Proven experience with Flux or Redux is required • Familiarity with newer specifications of ECMAScript • Knowledge of modern authorization mechanisms, such as JSON Web Token • Familiarity with modern front-end build pipelines and tools • Experience with common front-end development tools such as Babel, Webpack, NPM, etc. • Ability to understand business requirements and translate them into technical requirements • An ability for benchmarking and optimization • Expertise with code versioning tools (Git) • Experience with CSS processors: SASS, LESS and code analysis tools (e.g. JSLint) • Expert knowledge of how browsers work - regarding optimizing page load times, rendering, caching and memory • Experience with Continuous Integration and automated testing strategies • Able to identify anti-patterns and provide refactoring recommendations • Proven experience leading teams of engineers • BS (or equivalent) in Computer Science or related discipline; advanced degree preferred

Behaviors • Self-motivated, independent, organized, and proactive • Strong communication and collaboration skills; ability to communicate technical concepts to both technical and non-technical collaborators and stakeholders • Ability to quickly adapt and learn new technologies • Ability to manage multiple tasks and competing priorities in a fast-moving dynamic environment • Collaborates with leadership across multiple teams to define solution requirements and technical implementation • Solves technical problems outside of day-to-day responsibilities • Contributes to the success of many teams achieving their goals • Develop team’s strategy and prioritize initiatives • Assist in retaining and hiring talented team members

About American Express

American Express is a global services company that provides customers with access to products, insights and experiences that enrich lives and build business success. Our principal products and services are charge and credit card products and travel-related services offered to consumers and businesses around the world. Learn more at, and learn more about Technology at American Express at

Company Culture

Since its inception, American Express' success has been defined by its ability to innovate, evolve, disrupt, and take risks. What has remained constant throughout this history of transformation is our dedication to our customers, to our employees and to the values on which American Express was built: integrity, quality, respect and community.

Our open, creative, and collaborative culture is a big part of why we regularly win best workplace awards all over the world. These include Fortune's 100 Best Companies to Work For and World's Most Admired Companies; Forbes' annual ranking of America's Best Employers; and's list of the Top Companies for Women Technologists.

World-class benefits and programs help our people to balance their professional and personal lives, while continuing to develop their skills and grow in their careers. These include enhanced leave policies for new parents (both moms and dads) welcoming a child through birth, adoption or surrogacy; tuition reimbursement; scholarships for employees' children; Reward Blue recognition program; American Express Leadership Academy development program; technical training; diversity networks; communities of technical practice; Healthy Living wellness and fitness program; Healthy Minds program; Smart Saving program; and Serve2Gether, Give2Gether and Green2Gether social engagement programs.

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