Senior Java Backend Engineer | Spring Boot & Microservices

Wakapi; United States; On-site; USD 120,000 - 170,000; Full time

Job summary

Wakapi is seeking a Senior Java Software Engineer to design, develop, and maintain reliable, scalable backend applications. You will own features across the software lifecycle and help guide the team with technical reviews and architecture decisions.

You will work on REST APIs, microservices, and production troubleshooting, while improving performance, security, and maintainability. Strong English communication and mentoring skills are essential in an Agile environment.

Qualifications

• Minimum 5–6 years of professional software development experience, primarily using Java.
• Strong experience with Java, Spring Boot, and the Spring ecosystem.
• Solid understanding of object-oriented programming, design principles, and common design patterns.
• Experience designing and developing REST APIs and microservices.
• Good experience with Maven and Git-based development workflows.
• Strong knowledge of relational databases, SQL, and data-access technologies such as JPA/Hibernate.
• Experience writing unit and integration tests using tools such as JUnit and Mockito.
• Familiarity with CI/CD pipelines and modern software delivery practices.
• Strong debugging, problem-solving, and root-cause analysis skills.
• Experience with Agile software development practices.
• Ability to independently own technical tasks and guide less-experienced engineers.
• Excellent verbal and written English communication skills.

Responsibilities

• Design, develop, test, and maintain backend applications using Java and Spring Boot.
• Translate business and technical requirements into scalable software solutions.
• Participate throughout the software development lifecycle, including analysis, design, implementation, testing, deployment, and production support.
• Design and integrate REST APIs and microservices.
• Troubleshoot production issues, identify root causes, and implement sustainable solutions.
• Write clean, maintainable, and well-tested code following engineering best practices.
• Perform code reviews and provide technical guidance to other team members.
• Contribute to system design, architecture, and technical decision-making.
• Improve application performance, reliability, security, and maintainability.
• Create and maintain technical documentation in Confluence.
• Collaborate with product owners, QA engineers, and other technical teams in an Agile environment.
• Participate in Scrum ceremonies and technical discussions.

Skills

Java

Spring Boot

REST APIs

Microservices

OOP

Design patterns

SQL

Unit testing

Integration testing

Agile

English communication

Education

Bachelor’s degree in Computer Science, Computer Engineering, Software Engineering, or related field

Tools

Maven

Git

JUnit

Mockito

AWS

Docker

JPA/Hibernate

CI/CD

React

Job description

Wakapi is seeking a Senior Java Software Engineer to design, develop, and maintain reliable, scalable backend applications. You will own features across the software lifecycle and help guide the team with technical reviews and architecture decisions.

You will work on REST APIs, microservices, and production troubleshooting, while improving performance, security, and maintainability. Strong English communication and mentoring skills are essential in an Agile environment.