ZipRecruiter

Log In

1

Senior Java Engineer Jobs in Florissant, MO (NOW HIRING)

ITTConnect

Senior AI Engineer (Java)

Saint Louis, MO · On-site

$117K - $154K/yr

ITTConnect is seeking an experienced Senior AI Engineer (JAVA) to work for a client that is a global leader in consulting, digital transformation, technology and engineering services present in ...

ITTConnect

Senior AI Engineer (Java)

Saint Louis, MO · On-site

$121K - $159K/yr

ITTConnect is seeking an experienced Senior AI Engineer (JAVA) to work for a client that is a global leader in consulting, digital transformation, technology and engineering services present in ...

MasterCard

Senior Software Engineer - Java

O Fallon, MO · Hybrid

$116K - $153K/yr

Title and Summary Senior Software Engineer - Java Overview: Mastercard's Enterprise Credit Risk (ECR) team is seeking a talented Senior Software Engineer - Java Full Stack to design, build, and ...

SESHENG LLC

Java Developer

O Fallon, MO · On-site

$47.75 - $61.75/hr

Java Engineer Onsite( 5days) O''Fallon, Missouri An ideal candidate for this role would have ... This person would fit well into a senior or lead developer role, where they can leverage their deep ...

Mastercard, Inc.

Senior Software Engineer - Java

O Fallon, MO · On-site

$116K - $153K/yr

Title and Summary Senior Software Engineer - Java Overview: Mastercard's Enterprise Credit Risk (ECR) team is seeking a talented Senior Software Engineer - Java Full Stack to design, build, and ...

Georgia IT Inc

Java UI Developer

Saint Louis, MO · On-site

Sr Java UI Developer Location: Saint Louis, MO Duration: 12 months+ US Citizen, Green Card, EAD preferred... No Third Party agencies corp to corp. Required * JavaScript, CSS, HTML * Strong ...

Georgia IT Inc

Java UI Developer

Saint Louis, MO · On-site

Sr Java UI Developer Location: Saint Louis, MO Duration: 12 months+ US Citizen, Green Card, EAD preferred... No Third Party agencies corp to corp. Required * JavaScript, CSS, HTML * Strong ...

Palnar

Backend Java Engineer W/IBM MQ Exp

O Fallon, MO · On-site

$47.25 - $61.25/hr

Senior Software Development Engineer (Specialty) - Level 7 Location: O'Fallon, MO/Hybrid Duration: 12 months * Java * Proficient in core java * Spring boot preferred. * Messaging services * MQ's or ...

Stellar IT Group

Core Java Developer

Saint Louis, MO · On-site

Remote Duration: 6+ Months Contract Role Overview We are seeking experienced Senior Core Java Developers to join our team and contribute to building secure, scalable, and production-ready ...

MasterCard

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

We are looking for a Senior AI Java Engineer (Hands-on IC) to deliver AI-driven capabilities across our roadmap. This is a builder role requiring strong hands-on engineering-owning critical ...

Palnar

Sr. Java Full Stack Developer

O Fallon, MO · On-site

$49 - $63.25/hr

What are your top 3 required technical skills We are looking for a developer who is strong in backend development and has basic skills to perform UI development Backend Skills Java 17 Spring Boot 3.x ...

previous pagenext page

Showing results 21-40

All JobsJava Engineer JobsSenior Java Engineer JobsSenior Java Engineer Jobs in Florissant, MO

Senior Java Engineer information

See Florissant, MO salary details

$10

$57

$79

How much do senior java engineer jobs pay per hour?

As of Sep 9, 2026, the average hourly pay for senior java engineer in Florissant, MO is $57.94, according to ZipRecruiter salary data. Most workers in this role earn between $50.77 and $64.71 per hour, depending on experience, location, and employer.

What is a senior Java engineer?

Senior Java Engineers are experienced software developers who specialize in designing, developing, and maintaining applications using the Java programming language. They often lead development teams, architect solutions, and ensure that software meets both technical and business requirements. Their responsibilities also include code reviews, mentoring junior developers, and optimizing application performance. Typically, they have several years of experience and a deep understanding of Java frameworks and best practices.

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

To thrive as a Senior Java Engineer, you need advanced proficiency in Java programming, strong knowledge of software design patterns, and a degree in computer science or related field. Experience with frameworks like Spring, Hibernate, build tools such as Maven or Gradle, and familiarity with cloud platforms and CI/CD systems are typically required. Excellent problem-solving abilities, leadership, and effective communication help you guide teams and collaborate with stakeholders. These skills are crucial for delivering robust, scalable software solutions and mentoring junior engineers in complex development environments.

What are some common challenges senior Java engineers face when working on large-scale enterprise applications?

Senior Java Engineers often encounter challenges such as managing complex codebases, ensuring application scalability, and maintaining high performance under heavy loads. They are also responsible for implementing robust security practices and integrating new technologies without disrupting existing systems. Effective collaboration with cross-functional teams and mentoring junior developers are crucial aspects of the role, as these responsibilities help maintain code quality and project momentum.

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

AspectSenior Java EngineerJava Developer
Required CredentialsBachelor's in Computer Science, Java certifications (e.g., Oracle Certified Professional)Bachelor's in Computer Science or related field, Java certifications optional
Work EnvironmentDesigning, developing, and maintaining complex Java applications, often in team leadership rolesDeveloping Java applications, focusing on coding and implementation
Industry UsageUsed across finance, tech, and enterprise sectors for large-scale projectsCommonly employed in software development firms, startups, and tech companies

While both roles involve Java programming, Senior Java Engineers typically handle complex system design, mentorship, and project leadership, whereas Java Developers focus more on coding and implementing features. The senior role often requires more experience and certifications, with a broader scope of responsibilities.

What job categories do people searching Senior Java Engineer jobs in Florissant, MO look for?

The top searched job categories for Senior Java Engineer jobs in Florissant, MO are:

What cities near Florissant, MO are hiring for Senior Java Engineer jobs?

Cities near Florissant, MO with the most Senior Java Engineer job openings:

Senior Java Engineer jobs near you

Java/Spring boot Developer

Saint Louis, MO • On-site

Avani Technology Solutions, Inc.
IT Services • 201 - 500 employees
Learn more about Avani Technology Solutions, Inc.external

$49.25 - $63.75/hr

Full-time

Re-posted 5 days ago

Job description


  • Senior Java/Spring boot Developer Senior developer with following skills (no hard and fast expectation for years of experience but 5+ is good with them)
  • Hands on experience in implementing Micro services and Architecture using Apache open source projects like Mesos, Kafka,Cassandra, Hadoop.
  • Apache Tomcat, Spring Webservices, Spring Boot framework
  • Java and Web Services (RESTFul APIs)
  • Experience in implementing Docker containers for elastic scalability
  • Well versed with various exception handling techniques
  • Experience in developing, monitoring and logging framework
  • Experience in working in Telcos, especially DTV, Voice and HSD over DOCSIS type work.
  • Be able to create and interpret design documents based on specific design patterns Above all candidate should be Self-motivated and self-starter, be able to pick up and share knowledge swiftly, with "can do attitude" with good oral and written communication skills More specifically:
  • Use of Log4J or Logback (successor to Log4J) for generation of standardized disk log messages within services and applications
  • Experience creating test clients with SOAPUI
  • Experience performing performance testing of web services with JMeter and scripting input parameters from external input files
  • Experience with creating new web service and GUI app project trees using standard Maven 3.x directory tree layout
  • Experience using JUnit to create automated unit tests of all methods with web services using mock data

Apply