Java Developer

Ethereum Technologies; Seattle (WA); On-site; USD 110,000 - 160,000; Full time

Job summary

Ethereum Technologies in Seattle is seeking a skilled Java Developer to design, develop, test, and maintain scalable, high-performance applications. You will work with Java, Spring Boot, REST APIs, microservices, and relational databases to deliver robust backend services.

The role involves implementing security, performing unit testing, and collaborating with cross-functional teams in an Agile environment. Experience with CI/CD and cloud familiarity is a plus.

Qualifications

• Proficient in Java 8 or later with solid OO design.
• Experience with Spring Framework, Spring Boot, and REST services.
• Develop and maintain microservices with database integration.
• Strong SQL skills and ORM familiarity (Hibernate/JPA).
• Experience with Git, Maven or Gradle, and CI/CD pipelines.
• Familiarity with testing (JUnit/Mockito) and SDLC.

Responsibilities

• Design, develop, test, and maintain scalable Java applications.
• Build backend services using Spring Boot and Spring Framework.
• Develop and integrate RESTful APIs and microservices.
• Work with relational databases and write SQL/stored procedures.
• Implement authentication and authorization with secure practices.
• Write clean, reusable code and perform code reviews.
• Collaborate with analysts, QA, DevOps, and other developers.
• Participate in Agile/Scrum ceremonies and CI/CD processes.
• Support deployments, production issues, and performance tuning.
• Create technical documentation.

Skills

Java 8+

Spring Boot

REST APIs

Microservices

SQL Databases

Git

CI/CD

Tools

Maven/Gradle

Hibernate/JPA

Job description

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

We are looking for a skilled Java Developer to design, develop, test, and maintain scalable, high-performance applications. The ideal candidate should have strong experience in Java, Spring Boot, REST APIs, microservices, database technologies, and modern software development practices.

Roles and Responsibilities

Design, develop, and maintain enterprise applications using Java and J2EE technologies.

Build scalable backend services using Spring Boot and Spring Framework.

Develop and integrate RESTful APIs and web services.

Design and implement microservices-based architectures.

Write clean, reusable, efficient, and maintainable code.

Work with relational databases such as Oracle, MySQL, or PostgreSQL.

Write SQL queries, stored procedures, and database integration logic.

Implement application security, authentication, and authorization.

Perform unit testing, debugging, troubleshooting, and code reviews.

Collaborate with business analysts, QA engineers, DevOps teams, and other developers.

Use Git for version control and Maven or Gradle for build management.

Participate in Agile/Scrum ceremonies and contribute to continuous improvement.

Support application deployments, production issues, and performance optimization.

Create and maintain technical documentation.

Required Technical Skills

Strong programming experience in Java 8 or later.

Good understanding of OOP concepts, collections, multithreading, exception handling, and Java fundamentals.

Experience with Spring, Spring Boot, Spring MVC, and Spring Data JPA.

Hands-on experience developing REST APIs and microservices.

Knowledge of Hibernate, JPA, and ORM concepts.

Experience with SQL and relational databases.

Familiarity with Git, Maven/Gradle, and CI/CD pipelines.

Experience with JUnit, Mockito, and unit testing.

Understanding of design patterns, SOLID principles, and application architecture.

Knowledge of Agile methodologies and software development life cycle (SDLC).

Preferred Skills

Experience with cloud platforms such as AWS, Azure, or GCP.

Knowledge of Docker and Kubernetes.

Experience with Kafka or other messaging technologies.

Familiarity with Redis or other caching solutions.

Exposure to Jenkins, GitHub Actions, or similar CI/CD tools.

Knowledge of monitoring, logging, and application performance tuning.

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.