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

Senior Java Engineer

Saint Louis, MO

$55.75 - $71/hr

Design, develop, and implement complex backend solutions using Java, Spring Boot, and related ... Collaborate with cross-functional teams including DevOps, QA, and product to deliver high-quality ...

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 ...

Full Stack Java Developer

Creve Coeur, MO · On-site

$49.25 - $63.50/hr

The Full Stack Developer provides frontend and backend development support. The successful ... JS, Java and Postgres SQL on AWS platform Overall 6+ years of Candidate experience needed Good ...

Senior Java Developer

Saint Louis, MO

$55.75 - $71/hr

Major Accountabilities • Responsible for programming, testing, implementation, documentation ... backend, and micro-service APIs with Java and SpringBoot • Experience with version control ...

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 ...

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Java Developer Location: St. Louis, MO Strong Programming skills (OOP, SOLID, 12-factor). Java is preferred. Experience with distributed systems design and architecture Strong experience with CI/CD ...

Java Developer

Lake Saint Louis, MO · On-site

$48.25 - $62.50/hr

Onsite Sr. Java Developer Location: St. Louis, MO In short, I require ::-- Java , spring boot , microservices and AWS ( cloud is compulsory , if not AWS , any other cloud will work). Responsibilities ...

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Java Developer Location: St Louis, MO * 10+ years of hands-on software engineering experience * Excellent hands-on experience in Java * Experience in developing REST services. * Experience in unit ...

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How much do java backend developer jobs pay per hour?

As of Jun 18, 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.

Is Java still in demand in 2026?

Java remains a highly in-demand skill for backend developers in 2026 due to its widespread use in enterprise applications, Android development, and cloud-based systems. Proficiency in Java, along with frameworks like Spring and knowledge of cloud platforms, continues to be valuable for job opportunities in software development.

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.

Will AI replace Java backend developers?

AI is unlikely to fully replace Java backend developers, as their role involves complex problem-solving, system design, and maintaining software infrastructure that requires human expertise. Instead, AI tools can assist developers by automating routine tasks and improving productivity, making their skills in Java, frameworks, and system architecture more valuable. Continuous learning and adapting to new technologies remain essential for Java backend developers to stay relevant in evolving environments.

Are Java backend developers in demand?

Java backend developers are in high demand due to the widespread use of Java in enterprise applications, web services, and cloud-based systems. Skills in frameworks like Spring and experience with cloud platforms increase employability, and the role often requires knowledge of databases and APIs. The demand is expected to remain strong as businesses continue to rely on Java for scalable backend solutions.

How much do Java back end developers make?

Java backend developers' salaries vary based on experience, location, and skill level, but they typically earn between $70,000 and $130,000 annually in many regions. Senior developers with expertise in frameworks like Spring and proficiency in cloud environments can earn higher salaries, especially with certifications and strong problem-solving skills.

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 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 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 June 2026, with employment types broken down into 53% Full Time, and 47% Contract. Highlights an 100% In-person job distribution, with an average salary of $106,253 per year, or $51.1 per hour.
Back-End Software Engineer (Experienced or Senior)

Back-End Software Engineer (Experienced or Senior)

Boeing

Berkeley, MO • On-site

$115K - $151K/yr

Full-time

Medical, Life, Retirement

This job post has expired 1 day ago. Applications are no longer accepted.


Boeing rating

8.5

Company rating: 8.5 out of 10

Based on 591 frontline employees who took The Breakroom Quiz

32nd of 518 rated manufacturers


Job description

Back-End Software Engineer (Experienced or Senior)
Company:
The Boeing Company
The Boeing Company is currently seeking Back-End Software Engineer (Experienced or Senior) to lead our Model-Based Engineering Software (MBE) team located in Berkeley, Missouri. This position will focus on supporting the Boeing Defense Services (BDS) business organization.
This position will focus on developing prototypes and new capabilities for web-applications and services. You will design APIs, create data processing and analytics pipelines, optimize SQL queries, and build up production-ready infrastructure. In this backend developer position, you'll be helping shape the architecture and infrastructure needed to make our prototypes and minimum-viable products production ready. Some examples of the work involved may include but are not limited to researching and selecting technologies and programing languages to use, building reliable and performant server applications using those technologies and languages, and ensuring our applications can scale to support hundreds to thousands of users. If the applicant desires, this position can evolve into a full-stack role to also do frontend development.
At The Boeing Company, we innovate and collaborate to make the world a better place. From the seabed to outer space, you can contribute to work that matters with a company built on shared values. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us.
Our teams are currently hiring for a broad range of experience levels including; Experienced or Senior Software Engineers.
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 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
  • Exposure to Agile process

Preferred Qualifications (Desired Skills/Experience):
  • Level 3: 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
  • Level 4: 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
  • 9 or more years' related work experience or an equivalent combination of education and experience
  • 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: 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.
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: $126,650 - $171,350
Summary Pay Range Senior: $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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