Volunteer Java Jobs in Mesa, AZ (NOW HIRING)

Description

American Express is hiring a Java/API Engineer to support the development of scalable backend systems and microservices, enabling integration across enterprise platforms including data systems, customer experience platforms, and internal services. This role focuses on building high-performance APIs and distributed backend services, serving as a foundational layer for multiple applications and platforms. Key Responsibilities Backend Development Design and develop RESTful APIs and microservices using Java and Spring Boot Build and maintain scalable backend applications supporting high-throughput systems Write clean, maintainable, and efficient code following best practices Microservices & Distributed Systems Develop and support microservices architectures that are resilient and scalable Work with distributed systems and asynchronous processing models Implement patterns such as circuit breakers, retries, and service discovery Messaging & Event Processing Work with Kafka or similar messaging systems to: Produce and consume event streams Support real-time or near real-time data processing Enable communication between services in an event-driven architecture Data & System Integration Integrate APIs with: Relational and NoSQL databases External services and third-party APIs Internal enterprise systems Support backend services that interact with data platforms and downstream analytics systems Cloud & DevOps Deploy and manage applications in a cloud environment (GCP preferred) Participate in CI/CD pipelines (Jenkins, Git, Maven) Support monitoring, logging, and performance optimization

Skills

Api, Java, Rest, Microservices

Top Skills Details

Api,Java,Rest,Microservices

Additional Skills & Qualifications

Experience with cloud platforms (GCP, AWS, Azure) Familiarity with containerization (Docker) and orchestration (Kubernetes) Exposure to: Data engineering workflows Contact center or CX-related systems Experience with high-volume transactional systems

Experience Level

Expert Level

This is a Contract to Hire position based out of Phoenix, AZ.

The pay range for this position is $45.00 - $55.00/hr.

Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

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)

This is a hybrid position in Phoenix,AZ.

This position is anticipated to close on Sep 14, 2026.

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.

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.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.