Software Engineer III – Java/Go, RestAPI

American Express

. Design, develop, and maintain core capabilities of card transaction processing systems on distributed platforms deployed in hybrid cloud environments.

Posted 11/10/2026full-timePhoenix • Arizona • United StatesMid-LevelSenior💰 $103,750 - $174,750 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and developing scalable microservices and cloud-native applications, with a strong focus on Java, distributed systems, and AI-assisted engineering tools. Proven ability to ensure production resiliency and collaborate effectively across cross-functional teams.

Highest-signal resume keywords

Java ProgrammingMicroservices ArchitectureCloud-Native Application DevelopmentAI-Assisted Engineering ToolsDistributed Systems

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaGoMicroservicesDistributed SystemsREST APIsRelational DatabasesNoSQL DatabasesCI/CDAutomated TestingAgile Methodologies

Soft Skills

Analytical SkillsProblem-Solving SkillsEffective CommunicationCollaboration

Tools & Technologies

DockerKubernetesOpenShiftEnvoyIstioGRPCRedisKafkaCouchbaseCassandra

Industry Keywords

Hybrid CloudAI StandardsObservabilityDistributed TracingMonitoring Tools

Tech Stack

Tools & technologies

CassandraCloudDistributed SystemsDockerGrafanaGRPCJavaJenkinsKafkaKubernetesMicroservicesNoSQLOpenShiftPrometheusRedisSpringSpring BootSpringBootGo

About the role

Key responsibilities & impact

Design, develop, and maintain core capabilities of card transaction processing systems on distributed platforms deployed in hybrid cloud environments.
Design, develop, and maintain high-performance, scalable microservices using Java, Vert.x, Spring Boot, Spring MVC, Spring Data, and RESTful APIs.
Own feature development, unit testing, API integration, automation, and production readiness as a core Agile team member.
Leverage AI-assisted engineering tools and coding agents across development, testing, debugging, and code reviews.
Develop reusable AI agent skills and automated workflows for code reviews, test generation, root cause analysis, and repetitive development tasks.
Ensure production resiliency, performance, security, and reliability through risk identification, testing, troubleshooting, and continuous improvement.
Collaborate with Product, Architecture, QE, SRE, and geographically distributed engineering teams.
Contribute to technical design discussions, code reviews, engineering standards, and reusable platform capabilities.
Explore emerging technologies and apply improvements to engineering workflows.
Maintain accountability for the quality, security, and correctness of AI-assisted code in accordance with responsible AI standards.

Requirements

What you’ll need

Bachelor's degree in Computer Science, Computer Engineering, or a related technical field.
Strong programming experience in Java and/or Go, with expertise in building high-performance, low-latency, and scalable applications.
Strong understanding of distributed systems, algorithms, data structures, and microservices architecture.
Hands-on experience with Envoy, Istio, gRPC, and REST APIs.
Experience designing and building cloud-native applications; knowledge of Docker, Kubernetes, or OpenShift preferred.
Experience with relational and NoSQL databases and distributed messaging systems such as Redis, Kafka, Couchbase, and Cassandra, preferably in high-volume transaction processing environments.
Familiarity with observability, distributed tracing, and monitoring tools such as ELK, Grafana, and Prometheus.
Experience with software development lifecycle practices, automated testing, CI/CD, Jenkins, and GitHub.
Hands-on experience leveraging AI-assisted software engineering tools and familiarity with building and utilizing AI agents to automate engineering workflows.
Strong analytical and problem-solving skills.
Effective written and verbal communication skills and ability to collaborate across cross-functional teams.
Visa sponsorship may be provided for certain positions depending on business requirements, cost, and applicable laws.

Benefits

Comp & perks

Competitive base salaries
Bonus incentives
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