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Senior Java J2Ee Developer Jobs in Saint Louis, MO

... Engineering, Math or Information Systems from an accredited university or equivalent work experience in lieu of degree. A minimum of 2 years of relevant work experience with Java/J2EE application ...

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

... Java, J2EE Technologies (Servlets, JSP, JDBC & JNDI), RESTful, JSON, Web Technologies (HTML, CSS ... and programming experience and SOLID principles • Experience in implementing various design ...

... Engineering, Math or Information Systems from an accredited university or equivalent work experience in lieu of degree. A minimum of 2 years of relevant work experience with Java/J2EE application ...

Java/JEE, Spring, Spring Boot, REST/SOAP web services, Hibernate, SQL, Tomcat, Application servers ... We deliver agile, scalable talent solutions across IT, engineering, life sciences, clinical, and ...

Java/JEE, Spring, Spring Boot, REST/SOAP web services, Hibernate, SQL, Tomcat, Application servers ... We deliver agile, scalable talent solutions across IT, engineering, life sciences, clinical, and ...

Java/JEE, Spring, Spring Boot, REST/SOAP web services, Hibernate, SQL, Tomcat, Application servers ... We deliver agile, scalable talent solutions across IT, engineering, life sciences, clinical, and ...

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Unigroup is in need of a senior Java developer. They will be part of a 10+ person team developing on a large rewrite of their enterprise system along with smaller projects as well. This individual ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

All About You • Strong experience with Java/J2EE, Spring Boot, and distributed systems. • ... IntelliJ or JBoss Developer Studio Desirable Skills • Experience with distributed computing ...

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

All About You Strong experience with Java/J2EE, Spring Boot, and distributed systems. Experience ... Developer Studio Desirable Skills Experience with distributed computing platforms and in-memory ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

All About You • Strong experience with Java/J2EE, Spring Boot, and distributed systems. • ... IntelliJ or JBoss Developer Studio Desirable Skills • Experience with distributed computing ...

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

All About You • Strong experience with Java/J2EE, Spring Boot, and distributed systems. • ... IntelliJ or JBoss Developer Studio Desirable Skills • Experience with distributed computing ...

Java/Angular Developer

Saint Louis, MO · On-site +1

$49.50 - $64.25/hr

The developer will meet with clients, analyze client requirements, propose & construct solutions ... Java/ Angular, J2EE, Servlets, XML * HTML, CSS, JavaScript, JQuery * JUnit, Mockito * Apache ...

Senior Software Engineer - Java Developer

MO · On-site

$53.50 - $68.25/hr

Senior Software Engineer (Java Developer) Location: O'fallon, Missouri Duration: 24 months Experiece: 7+ years Skills summary: • Advanced in with Linux and Java development (JDK 1.7 or greater ...

Java

Saint Louis, MO · On-site

$49.50 - $64.25/hr

It provides strategic business consulting, technology, engineering and outsourcing services to help ... Preferred At least 4 years of experience with Java/J2EE Technologies like Servlets, EJB, JSP, JDBC ...

Java Engineer

O Fallon, MO · On-site

$48.50 - $66.50/hr

Has at least 8+ years of hands-on Java development experience, specifically in J2EE (Java 2 ... This person would fit well into a senior or lead developer role, where they can leverage their deep ...

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Founded 1996 Role: Java Developer Location - St. Louis, MO Duration: Long term contract Work ... J2EE (Java, JSP, Servlets, Filters, Listeners, JSTL, EL) Struts 2.0 (MVC framework for Web Tier ...

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Senior Java J2Ee Developer information

What are the key skills and qualifications needed to thrive as a senior Java J2EE developer?

To thrive as a Senior Java J2EE Developer, you need advanced expertise in Java, J2EE frameworks (such as Spring or Hibernate), object-oriented programming, and a relevant degree in computer science or related fields. Familiarity with version control systems (like Git), build tools (such as Maven or Gradle), and cloud platforms, along with relevant certifications, is often required. Strong problem-solving, leadership, and communication skills help you collaborate effectively and mentor junior developers. These skills and qualities are essential for delivering robust, scalable applications and leading successful development projects.

What does a senior Java J2EE developer do?

A Senior Java J2EE Developer is responsible for designing, developing, and maintaining enterprise-level applications using Java and Java 2 Platform, Enterprise Edition (J2EE) technologies. They lead the development process, perform code reviews, and ensure the application is robust, scalable, and secure. Additionally, they collaborate with cross-functional teams to gather requirements, provide technical guidance, and resolve complex software issues.

What is the difference between Senior Java J2Ee Developer vs Java Software Engineer?

AspectSenior Java J2Ee DeveloperJava Software Engineer
Required CredentialsBachelor's in CS or related, Java certifications often preferredBachelor's in CS or related, Java certifications beneficial
Work EnvironmentDevelops enterprise applications, often in large teamsDevelops Java applications, may work on various project sizes
Industry UsageCommon in finance, healthcare, enterprise sectorsUsed across tech, finance, startups, and enterprise
Search & Comparison IntentOften compared for experience level and responsibilitiesCompared for entry to mid-level Java development roles

The main difference between a Senior Java J2Ee Developer and a Java Software Engineer lies in experience and responsibilities. Senior developers typically lead complex projects and mentor junior staff, while Java Software Engineers focus on developing Java applications across various environments. Both roles require similar educational backgrounds and certifications, but seniority impacts scope and leadership expectations.

What are some common challenges faced by senior Java J2EE developers when working on large-scale enterprise applications?

Senior Java J2EE Developers often encounter challenges such as managing complex codebases, ensuring scalability and performance, and integrating with legacy systems or third-party services. Balancing new feature development with ongoing maintenance and refactoring can also be demanding. Effective communication and collaboration with cross-functional teams, such as DevOps, QA, and front-end developers, are essential to ensure smooth project delivery and address issues promptly.
What cities near Saint Louis, MO are hiring for Senior Java J2Ee Developer jobs? Cities near Saint Louis, MO with the most Senior Java J2Ee Developer job openings:
Infographic showing various Senior Java J2Ee Developer job openings in Saint Louis, MO as of August 2026, with employment types broken down into 64% Full Time, 22% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Junior JAVA Devloper

AG Technologies

Chesterfield, MO • On-site

$300/wk

Full-time

Medical, Dental, Vision, Retirement

Re-posted 18 days ago


Job description

Company Description

AG Technologies was founded as a software solutions company in 2008 & has its corporate headquarters at Chesterfield, Missouri with branches within the US and India. Over the years the organization has expanded into various market segments & activities including "Consultancy services" of technical personnel in large and multi-national organizations. Over the last five years, our client base of Fortune 100 companies has expanded dramatically

Job Description

* 0- 2 years' experience in the development, engineering, interfacing, integration of hardware and software systems to include an understanding of requirements elicitation, analysis and functional allocation, concepts of operation, interface standards, and system architectures. 

* Basic understanding of Object Oriented and Structured development methodologies and languages. 

* Developing documentation required to support a program's technical issues and training situations. 

* Experience in Java development This position requires a TS/SCI clearance with a polygraph. 

Qualifications

Bachelors / Masters Degree in Technical field such as Computer Science, Computer Engineering, Math or Information Systems from an accredited university or equivalent work experience in lieu of degree.

A minimum of 2 years of relevant work experience with Java/J2EE application development.

Additional Information

Full time in house attorney available for legal formalities.

Medical benefits provided - health, dental, vision insurances.

Company is E-verified to get an OPT STEM Extension. 

We are an Equal Employment Opportunity Employer. 

Company Files H1B for the employees.

One time travel expenses paid (Maximum $300 will be reimbursed once you are on project).

Salary hikes after every 6 months.

Strong and motivated marketing team to place an employee on the project

401k-Plan

529k-Plan