Java Full Stack Application Architect

Quantum Technologies. LLC; Plano (TX); On-site; USD 83,000 - 117,000; Full time

Job summary

Quantum Technologies LLC seeks a Java Full Stack Application Architect to lead design and delivery for a multi-channel commerce platform migration in Plano, TX. You will own backend services, APIs, and React front-ends, aligning with UDP standards and reusable platform patterns.

The role requires 10+ years in software engineering, with 5+ years in microservices and cloud-native solutions, plus experience with modern Java/Spring Boot and TypeScript front-ends.

Qualifications

• 10+ years of software engineering experience with enterprise Java applications.
• 5+ years delivering microservices and cloud-native solutions.
• Experience with large-scale commerce, digital transformation, or platform migrations.
• Prior exposure to Salesforce Commerce Cloud, composable commerce, or headless architectures preferred.
• Experience with AI solutions is a plus.

Responsibilities

• Design, develop, and modernize commerce capabilities during platform migration.
• Own end-to-end feature delivery across backend services, APIs, React front-ends, and cloud deployments.
• Build scalable REST APIs, implement CI/CD pipelines, and ensure UDP architecture alignment.
• Develop React-based storefronts with TypeScript and shared UDP components.
• Implement synchronous and event-driven integrations using Kafka or approved messaging services.

Skills

Java

Spring Boot

React

TypeScript

REST APIs

Microservices

AWS

Docker

Kubernetes/OpenShift

CI/CD

Tools

Jenkins

GitHub Actions

Terraform

Postman

Playwright

SonarQube

Maven

Gradle

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.