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Java Backend Developer Jobs in O Fallon, MO (NOW HIRING)

Job Discription Java Programming language - Candidate will have an opportunity to work directly with the users, business analyst, translate business requirements into the technical architecture and ...

New

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Sr. Java Developer

Saint Louis, MO · On-site

$54.25 - $69.25/hr

Sr. Java Developer St. Louis, MO Summary: The Client's Web Development Team is looking for a senior ... back-end databases. Several years of active experience with server-side Java is required. Multi ...

Showing results 21-40

Java Backend Developer information

See O Fallon, MO salary details

$9

$51

$68

How much do java backend developer jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for java backend developer in O'Fallon, MO is $51.08, according to ZipRecruiter salary data. Most workers in this role earn between $45.38 and $58.89 per hour, depending on experience, location, and employer.

What does a Java backend developer do?

A Java Backend Developer is responsible for building and maintaining the server-side logic, databases, and APIs of web applications using the Java programming language. They ensure that data is properly stored, retrieved, and processed while integrating with the frontend systems. Java Backend Developers also work on optimizing application performance, implementing security measures, and collaborating with other developers to deliver robust software solutions.

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

Java Backend Developers working on large-scale enterprise applications often encounter challenges such as ensuring application scalability, managing complex codebases, and optimizing system performance under heavy loads. Collaborating across teams to integrate with front-end services and external APIs can require strong communication and problem-solving skills. Additionally, maintaining high code quality while delivering new features quickly often means balancing technical debt with innovation. Regular code reviews and adopting best practices in software architecture help address these challenges.

What are the key skills and qualifications needed to thrive as a Java backend developer, and why are they important?

To thrive as a Java Backend Developer, you need strong proficiency in Java programming, knowledge of data structures and algorithms, and experience with backend frameworks such as Spring or Hibernate, often supported by a degree in computer science or a related field. Familiarity with relational databases (like MySQL or PostgreSQL), RESTful API development, version control systems (such as Git), and build tools (like Maven or Gradle) is typically required, and certifications like Oracle Certified Professional Java Programmer can be advantageous. Excellent problem-solving skills, attention to detail, and effective communication are crucial soft skills for collaborating with teams and troubleshooting complex systems. These capabilities ensure robust, scalable, and maintainable backend solutions that meet business requirements and support seamless application performance.

What are popular job titles related to Java Backend Developer jobs in O'Fallon, MO?

For Java Backend Developer jobs in O'Fallon, MO, the most frequently searched job titles are:

What job categories do people searching Java Backend Developer jobs in O'Fallon, MO look for?

The top searched job categories for Java Backend Developer jobs in O'Fallon, MO are:

What cities near O'Fallon, MO are hiring for Java Backend Developer jobs?

Cities near O'Fallon, MO with the most Java Backend Developer job openings:

Infographic showing various Java Backend Developer job openings in O'Fallon, MO as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $106,253 per year, or $51.1 per hour.

BackEnd Software Engineer (Experienced or Senior)

Boeing

Saint Louis, MO • On-site

Full-time

Medical, Life, Retirement

Re-posted 6 days ago


Boeing rating

8.5

Company rating: 8.5 out of 10

Based on 613 frontline employees who took The Breakroom Quiz

32nd of 540 rated manufacturers


Job description

BackEnd Software Engineer (Experienced or Senior)

Company:

The Boeing Company

The Boeing Company is currently seeking BackEnd Software Engineer (Experienced or Senior) to lead our Model-Based Engineering (MBE) software team located in Berkeley, Missouri. This position will focus on supporting the Boeing Defense Services (BDS) business organization.

Our teams are currently hiring for a broad range of experience levels including; Experienced or Senior Backend Software Engineers.

This role focuses on building prototypes and new capabilities for web applications and services. You will design APIs, develop data-processing and analytics pipelines, optimize SQL queries, and help establish production-ready infrastructure. As a backend developer, you'll play a key role in shaping the architecture needed to take prototypes and minimum viable products into production.

Responsibilities may include researching and selecting technologies and programming languages, building reliable and high-performance server applications, and helping ensure our systems can scale to support hundreds or even thousands of users. For the right candidate, this role may also grow into a full-stack position with frontend development opportunities.

Join Us. Build the Future.

Position Responsibilities:

  • Leads architecture, development, documentation and maintenance of standardized, efficient, and innovative processes, tools, methodologies, and performance metrics to streamline the software engineering lifecycle and enable continuous integration, delivery, and deployment of safety critical software

  • Provide comprehensive technical oversight for different systems, guiding teams in designing and operating production-ready systems

  • Evaluate emerging technologies and seek innovative solutions to address existing and new challenges

  • Mentor and develop engineers across all levels through sharing and learning

  • Ability to take projects from beginning to end with little direct supervision

  • Teamwork and coordination skills with ability to create clarity from ambiguity

  • Work with a team to shape the architecture of several web applications

  • Build new and expand on existing infrastructure for multi-application communications, logging, alerts, authentication, configuration, and more

  • Create test-suites for server applications to verify reliability, performance, and behavior

  • Work collaboratively to make decisions that affect the entire system

  • Interface with users and developers to define and implement solutions to meet requirements

  • Work independently and with a team to prototype features and applications

  • Communicate effectively to push the team's processes to best fit our needs

  • Engage in architectural discussions, influence the roadmap, and take ownership of key projects and initiatives

  • Resolving complex technical issues and driving innovations that improve system availability, resilience, and performance

  • Research and oversees implementation of current and emerging technologies, tools, frameworks and changes in regulations relevant to software development

  • Oversee the architecture, design, development, analyses, and maintenance of large-scale software systems that meet industry, customer and quality

  • Partners with appropriate stakeholders to inform system definition and oversees translation of system-level requirements into software requirements and models that meet customer, operational and performance requirements and have clear traceability to design, code and test artifacts

  • Oversees code reviews to ensure alignment to requirements and standards

Basic Qualifications (Required Skills/ Experience):

  • Bachelor's Degree

  • Active U.S. Secret Security Clearance

  • Ability to obtain Special Program Access

  • 5+ years of experience in backend software development (Java, Spring, Oracle SQL, SQL Server)

  • 5+ years of experience with Go, Python, Java or equivalent server language

  • 5+ years of experience with database technologies using SQL or PL/SQL

  • Knowledge and understanding of Agile development processes

Preferred Qualifications (Desired Skills/Experience):

  • 9 or more years' related work experience or an equivalent combination of education and experience

  • Experienced Level: Bachelor of Science degree from an accredited course of study in engineering, engineering technology (includes manufacturing engineering technology), chemistry, physics, mathematics, data science, or computer science and 5+ years of related work experience OR Bachelor's Degree and 9+ years of directly related work experience OR 13+ years of related, relevant experience

  • Senior Level: Bachelor of Science degree from an accredited course of study in engineering, engineering technology (includes manufacturing engineering technology), chemistry, physics, mathematics, data science, or computer science and 9+ years of related work experience OR Bachelor's Degree and 13+ years of directly related work experience OR 17+ years of related, relevant experience

  • Active Top Secret U.S. Security Clearance

  • 5+ years of experience in infrastructure development

  • Experience with concurrency programming

  • Experience with GitLab, CI/CD, Docker, Kubernetes

  • Strong experience with JavaScript frameworks: NodeJS, ReactJS

  • Strong experience with Go or Java

  • Basic C++ or Python

  • Familiar with Kafka, NiFi, Redis, or RabbitMQ

  • Experience developing RESTful APIs for complex datasets

  • Experience leading projects

  • Experience with AWS cloud

  • Understanding microservices, client-server architecture, event-driven architecture, domain-driven design (DDD), and other modern architectural styles to build robust and adaptable systems

  • Experience in large-scale software system architecture, design, and development of distributed/on-premises end-to-end scalable software

Travel:

Up to 10%

Drug Free Workplace:

Boeing is a Drug Free Workplace (DFW) where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.

Conflict of Interest:

Successful candidates for this job must satisfy the Company's Conflict of Interest (COI) assessment process.

Relocation:

This position offers relocation based on candidate eligibility. Note: Basic relocation will be offered for eligible internal candidates.

CodeVue Coding Challenge:

To be considered for this position you will be required to complete a technical assessment as part of the selection process. Failure to complete the assessment will remove you from consideration.

Pay & Benefits:

At Boeing, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent. Elements of the Total Rewards package include competitive base pay and variable compensation opportunities.

The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.

The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements.

Pay is based upon candidate experience and qualifications, as well as market and business considerations.

Summary Pay Range Experienced Level: $126,650 - $171,350

Summary Pay Range Senior Level: $160,650 - $217,350

Potential signing bonus for eligible/qualified external candidates.

Language Requirements:

Not Applicable

Education:

Bachelor's Degree or Equivalent

Relocation:

This position offers relocation based on candidate eligibility.

Export Control Requirement:

This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a "U.S. Person" as defined by 22 C.F.R. 120.62 is required. "U.S. Person" includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.

Safety Sensitive:

This is not a Safety Sensitive Position.

Security Clearance:

This position requires an active U.S. Secret Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance that has been active in the past 24 months is considered active)

Visa Sponsorship:

Employer will not sponsor applicants for employment visa status.

Contingent Upon Award Program

This position is not contingent upon program award

Shift:

Shift 1 (United States of America)

Stay safe from recruitment fraud! The only way to apply for a position at Boeing is via our Careers website. Learn how to protect yourself from recruitment fraud - Recruitment Fraud Warning

Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

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About Boeing

Sourced by ZipRecruiter

At Boeing, we are all innovators on a mission to connect, protect, explore and inspire. From the sea bed to outer space, you'll learn and grow, contributing to work that shapes the world. Find your future with us.

Industry

Aviation and aerospace product and parts manufacturing

Company size

10,000+ Employees

Headquarters location

Chicago, IL, US