Backend Developer

Description
American Express - Global Commercial Services - Shared Services Engineering
Team: Commercial Data Exchange
Role: Backend Software Engineer
Group:
In Global Commercial Services Technology (GCST), we develop software products and platforms across Small Business, Mid and Large Market and Global Commercial Clients. Our goals center around furthering the company's priorities of building on our strong position in commercial payments, whilst making American Express an essential part of our B2B customers' digital lives. We continuously strive to optimize the level of innovation, quality, and speed with which we deliver across many products and channels including Sales, Client and Individual Customer Acquisition, Digital Servicing, Commercial Lending, B2B Payment Products, Remittance Processing and Commercial Data. Together with multiple Product and Engineering teams outside of GCST, we work collectively to deliver enterprise capabilities to our B2B customers.
As a part of our tech team, we could work together to bring ground-breaking and diverse ideas to life that power the digital systems, services, products and platforms that millions of customers around the world depend on. If you love to work with APIs, contribute to open source, or use the latest technologies, we'll support you with an open environment and learning culture to grow your career.
Team/ Project:
The CDX team is ramping up to support a variety of new workloads such as a focus on re-writing current applications to Kotlin to better integrate across other Amex systems, as well as new feature builds including a commercial data exchange focused project supporting Real Time Authorizations (RTA) aimed at helping businesses make better business decisions with their data - particularly enabling 3rd party data integrations from card authorization data to external customers.
Day to day work will build off their microservice based foundational platform, building integrations with Kafka, building APIs to facilitate backend services, and expose APIs for the collection of certain data constructs such as authorizations.
What you'll be doing:
Play a critical role in the development, design, and maintenance of American Express Commercial APIs
Architect large-scale distributed systems that ensuring continued success
Work across the engineering team to build new product features and services
Lead, mentor and learn with other developers in all aspects of planning, development and testing
Be a catalyst for driving best-in-class technology practices and patterns while staying engaged with the latest technology trends
What we're looking for in you:
Proactivity: Resourceful, has grit, and a positive "can do" attitude; acts without being told what to do
Flexibility/adaptability: Is cool with rapidly changing priorities and projects
Follow-through: Follows-through on items without being managed
Calm under pressure: Ability to navigate and lead the team through high-priority last minute requests and other high stress situations; Works well under high-pressure timelines
Analytical skills: Likes learning and learns quickly
Communication: Ability to speak clearly and with intent
Qualifications
Strong experience working with Kotlin as well as any of the following object-oriented backend languages: C#, Scala, Java
Knowledge of frameworks and tools in the respective language enabling effective and efficient development
Recent experience working with Kotlin at the enterprise level - particularly in Kotlin re-writes is a plus.
Understanding and interest in architectural patterns for highly available, scalable, low-latency, asynchronous systems (for example, well-designed REST APIs, Microservices, high volume data pipelines, efficient algorithms)
Exposure to the benefits and challenges micro-services can bring
Experience working with Kafka or other streaming platforms
Experience with any cloud-based provider like AWS, Azure, or Google Cloud
Strong experience with relational (PSQL) and non relational (redis, couchbase) databases
Familiarity with CI/CD pipelines
Experience working in agile environments with code reviews and automated testing
Skills
Microservices, kotlin, C#, rest api, CI/CD, Cloud, database, Kafka, sql, redis, couchbase, postgresql, GraphQL
Top Skills Details
Microservices,kotlin,C#,rest api,CI/CD,Cloud,database,Kafka
Additional Skills & Qualifications
Non-Technical:
Must be a self starter, growth oriented engineer who takes initiative in their work - "go-getter" mind set
Must be confident in their skills - can take requirements and run with them. This includes analyzing, pushing back on stakeholders, poking holes when needed.
Biggest challenge - finding people who are good at asking questions, good at finding the holes in requirements, can be receptive to feedback in the coding interview and adapt, and can articulate the decisions they are making when problem solving and why
Bonus Experience:
- Experience with Docker, Terraform, and Kubernetes
- Experience with financial data, third-party integrations, and high throughput systems
- Full-stack experience with React or Angular is a plus (current tech stack is heavier angular but going through re-write to React)
Experience Level
Intermediate Level
Pay and Benefits
The pay range for this position is $55.00 - $62.00/hr.
Eligibility requirements apply to some benefits and may depend on your job
classification and length of employment. Benefits are subject to change and may be
subject to specific elections, plan, or program terms. If eligible, the benefits
available for this temporary role may include the following:
Medical, dental & vision
Critical Illness, Accident, and Hospital
401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available
Life Insurance (Voluntary Life & AD&D for the employee and dependents)
Short and long-term disability
Health Spending Account (HSA)
Transportation benefits
Employee Assistance Program
Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a hybrid position in New York,NY.
Application Deadline
This position is anticipated to close on Oct 22, 2025.
>About TEKsystems:
We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.