Senior Java Developer

Apexon; Round Rock (TX); On-site; USD 100,000 - 150,000; Full time

Job summary

Apexon in Round Rock, TX seeks an experienced Java developer to design and implement enterprise-scale applications. You will work on n-tier and distributed architectures, deliver REST and SOAP services, and ensure high code quality with unit tests.

Strong mentoring, problem-solving, and communication skills are essential. Candidates should be proficient with Spring (MVC, Boot, Data) and modern J2EE stack, with Oracle/SQL databases and ALM/JIRA processes.

Qualifications

• In-depth experience with n-tier and distributed architectures including UI, business logic, and data access layers.
• Experience with ESB tools such as Data Power, Mule, or similar integration hubs.
• Proven ability to develop REST and SOAP services and deploy across Java EE stacks.

Responsibilities

• Design and implement enterprise-scale applications across WebSphere/JBoss stacks.
• Write comprehensive unit tests using JUnit, Mockito, Jest to ensure quality.
• Collaborate with teams and clients; communicate clearly and analyze complex problems.

Skills

n-tier architectures

distributed architectures

Data Power

Mule ESB

Spring MVC

Spring Boot

Spring Data

Spring Core

Spring transactions

J2EE Framework

JSP

EJB

Servlets

JNDI

JDBC

JMS

JTA transaction

Log4J

Asynchronous processing

REST APIs

SOAP services

JAX-WS/RS

WebSphere

JBoss

JUnit

Mockito

Jest

Oracle

SQL

JIRA

ALM tools

Hands-on development

Communication skills

Analytical skills

Job description

• In depth experience designing and working with n-tier architectures (UI, business logic layer, data access layer) as well as experience in distributed architectures using integration hubs such as Data Power, Mule or any ESB’s
• Strong skills (Spring MVC, Spring Boot, Spring data, Spring-Core, Spring transactions etc.,) on J2EE Framework and internals of the architecture, including JSP, EJB, servlets, JNDI, JDBC, JMS, JTA transaction services, logging (Log4J), thread management and development of asynchronous java processes
• Experience in developing REST and SOAP services using JAX-WS/RS and/or Spring framework.
• Experience in building enterprise-scale applications with end-to-end build, packaging, and deployment across application servers such as WebSphere and JBoss.
• Experience in developing comprehensive unit test cases across full stack applications using frameworks such as JUnit, Mockito, and Jest, ensuring code quality, reliability, and maintainability.
• Demonstrates hands-on experience with relational databases (such as Oracle or similar) and display a good understanding of database principles/SQL beyond just data access
• Knowledge of SDLC processes and use of application lifecycle management tools such as JIRA, etc.
• Ability to quickly learn new concepts and/or technology
• Must have done hands-on development in most recent projects.
• Strong communication skills, both written and oral and ability to smoothly interact with development team leadership and clients
• Strong analytical and problem-solving skills