Senior Java Full Stack Lead

Ethereum Technologies; Dallas (TX); On-site; USD 150,000 - 210,000; Full time

Job summary

Ethereum Technologies in Dallas seeks a senior Java/J2EE tech lead to design, develop, and maintain enterprise applications using Spring Boot and microservices. You will build REST APIs, frontend modules with Angular/React, and scalable cloud solutions on Azure/AWS while driving GenAI/LLM initiatives and AI agents.

The role demands hands-on leadership, strong communication, and the ability to deliver end‑to‑end solutions from Day 1 in a fast‑paced environment.

Qualifications

• Design, develop and maintain enterprise Java apps with Spring Boot and microservices.
• Build and integrate REST APIs and third‑party services.
• Develop frontend apps using Angular/React.
• Design scalable cloud solutions on Azure/AWS.
• Develop GenAI/LLM powered apps, RAG, and AI agents.
• Lead technical design, development, testing and end‑to‑end delivery.
• Ensure performance, security, and code quality.
• Strong leadership, ownership and decision making.
• Excellent verbal and written communication.

Responsibilities

• Design, develop and maintain enterprise Java applications using Spring Boot and Microservices.
• Build and integrate REST APIs and third‑party services.
• Develop frontend applications using Angular/ReactJS.
• Design and implement scalable cloud solutions on Azure/AWS.
• Develop and integrate GenAI/LLM‑powered applications, RAG solutions, and AI agents.
• Lead technical design, development, testing, and end‑to‑end implementation.
• Ensure application performance, security, and code quality.
• Strong technical leadership, ownership, and decision‑making skills.
• Excellent verbal and written communication.
• Ability to independently manage requirements, lead teams, and drive end‑to‑end delivery.
• Must be a hands‑on Technical Lead capable of delivering solutions from Day 1 without constant guidance.

Skills

Java/J2EE 10+ yrs

Spring Boot

Spring MVC

Spring Security

Microservices

REST APIs

SOAP services

Databases

Frontend: Angular/React

Azure/AWS

Git/Maven/Jenkins

JUnit/Mockito

GenAI/LLM integration

OpenAI/Spring AI/LangChain4j

RAG/Prompt Engineering

Agile/Scrum

Leadership/Ownership

Tools

Docker

Kubernetes

Kafka

GraphQL

Azure

AWS

Git

Maven

Jenkins

Job description

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

• 10+ years of hands-on Java/J2EE development experience (Java 11/17/21).
• Strong expertise in Spring Boot, Spring MVC, Spring Security, and Microservices architecture.
• Experience developing REST APIs, SOAP services, and enterprise applications.
• Strong database expertise in SQL Server, Oracle, MySQL, and MongoDB.
• Frontend experience with Angular, ReactJS, TypeScript, HTML5, and CSS3.
• Hands-on experience with Azure/AWS, Git, Maven, and Jenkins.
• Experience with JUnit, Mockito, and Agile/Scrum methodologies.
• Strong hands-on experience in GenAI, LLM integration, and Agentic AI development.
• Experience with OpenAI, Spring AI, LangChain4j, RAG, and Prompt Engineering.

Key Responsibilities:

• Design, develop, and maintain enterprise Java applications using Spring Boot and Microservices.
• Build and integrate REST APIs and third-party services.
• Develop frontend applications using Angular/ReactJS.
• Design and implement scalable cloud solutions on Azure/AWS.
• Develop and integrate GenAI/LLM-powered applications, RAG solutions, and AI agents.
• Lead technical design, development, testing, and end-to-end implementation.
• Ensure application performance, security, and code quality.
• Strong technical leadership, ownership, and decision-making skills.
• Excellent verbal and written communication.
• Ability to independently manage requirements, lead teams, and drive end-to-end delivery.
• Must be a hands-on Technical Lead capable of delivering solutions from Day 1 without constant guidance.

Good-to-Have Skills:

• Docker, Kubernetes, Kafka, and GraphQL.
• Advanced AI/Agentic AI frameworks and cloud-native development.

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.