Java Full Stack Application Architect

Ethereum Technologies; Plano (TX); On-site; USD 82,000 - 117,000; Full time

Job summary

Ethereum Technologies seeks a Java Full Stack Application Architect for a 10-month engagement in Plano. The role covers design, development, and modernization of critical commerce capabilities, migrating from SFCC to UDP, and delivering end-to-end features across backend services, APIs, and React-based experiences.

The candidate will own cloud deployments, test automation, and migration activities while aligning with UDP architecture standards.

Qualifications

• 10+ years of software engineering experience
• At least 5 years developing enterprise-grade Java applications
• 5+ years delivering microservices and cloud-native solutions
• Experience in large-scale commerce, retail, digital transformation, or platform migration
• Exposure to Salesforce Commerce Cloud, composable commerce, headless architecture, or similar ecosystems; AI experience is a plus

Responsibilities

• Design, develop, and modernize commerce capabilities as Catalyst migrates from Salesforce Commerce Cloud to UDP
• Own end-to-end feature delivery across backend services, APIs, React-based experiences, cloud deployments, test automation, and migrations
• Build scalable, secure REST APIs and participate in decomposition, refactoring, and debt reduction
• Develop React-based storefronts using TypeScript and reusable components
• Enable integration between UDP and enterprise platforms (OMS, ERP, payments, loyalty, catalog, search, content)

Skills

Java

Spring Boot

React

TypeScript

Cloud architecture

Tools

AWS

Docker

Kubernetes/OpenShift

CI/CD

Postman

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Job Title: Java Full Stack Application Architect

Duration: 10 months

Bill Rate: $72/hour (C2C)

Job Type: W-2, 1099, C2C

Client: To Be Discussed Later

Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

Responsibilities :

• Design, develop, and modernize business-critical commerce capabilities as Catalyst migrates brand experiences from Salesforce Commerce Cloud to the Unified Digital Platform (UDP).
• The engineer will own end-to-end feature delivery across backend services, APIs, integrations, React-based experiences, cloud deployments, test automation, and migration activities while ensuring alignment with UDP architecture standards and reusable platform patterns.
• 10 + years of software engineering experience, including at least 5 years developing enterprise-grade Java applications.
• 5+ years delivering microservices and cloud-native solutions in complex enterprise environments.
• Experience in large-scale commerce, retail, digital transformation, or platform migration programs.
• Prior exposure to Salesforce Commerce Cloud, composable commerce, headless architecture, Contentstack, Constructor Search, or comparable ecosystems is preferred.
• Should have experience on AI solutions

Application modernization :

• Transform legacy SFCC and custom business capabilities into modern Java and Spring Boot microservices.
• Design reusable domain services for customer, catalog, pricing, order, payment, loyalty, and content capabilities.
• Build scalable, secure REST APIs and participate in application decomposition, refactoring, and technical-debt reduction.

Front-end engineering :

• Develop React-based composable storefront experiences using TypeScript, modern state-management patterns, and reusable components.
• Enable brand-specific styling and customer journeys while maximizing adoption of shared UDP services and UI components.
• Build interfaces between UDP and retained enterprise platforms, including OMS, ERP, payments, loyalty, catalog, search, and content services.
• Develop canonical models, provider interfaces, and brand adapters that isolate system-specific behavior.
• Implement synchronous API and event-driven integrations using Kafka or approved messaging services.

Cloud and DevOps :

• Build containerized applications using Docker and deploy workloads to Kubernetes or OpenShift environments on AWS.
• Contribute to CI/CD pipelines, infrastructure configurations, release automation, environment validation, and operational readiness.
• Implement logging, monitoring, distributed tracing, security controls, health checks, resiliency, and performance standards.

Migration, cutover, and quality engineering :

• Execute data mapping, conversion, synchronization, reconciliation, migration rehearsals, cutover, and hypercare activities.
• Create unit, component, API, integration, UI, and regression automation using JUnit, Mockito, Postman, and Playwright.
• Investigate complex defects, complete root-cause analysis, and support rollback or roll-forward decisions during releases.
• Participate in estimation, backlog refinement, design reviews, code reviews, demos, technical documentation, and sprint ceremonies.

Required Technical Skills :

• REST APIs, microservices, DDD and common design patterns AWS, Docker, Kubernetes/OpenShift and CI/CD
• Kafka/event streaming, API gateways and integration patterns Jenkins/GitHub Actions; Terraform preferred
• Oracle/PostgreSQL/MySQL; NoSQL fundamentals JUnit, Mockito, Postman, Playwright and SonarQube
• Secure coding, performance, resiliency and observability Git, Maven/Gradle and Agile engineering practices

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.