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Flexible Java Software Engineer Jobs in Saint Louis, MO

MasterCard

Software Engineer II

O Fallon, MO · On-site

$91K - $124K/yr

All About You Solid understanding of Java, J2EE, Spring, Spring Boot, Kafka, RESTful Web Services ... flexible spending account and health savings account; paid leaves (including 16 weeks of new parent ...

Mastercard, Inc.

Software Engineer II

O Fallon, MO · On-site

$91K - $124K/yr

All About You • Solid understanding of Java, J2EE, Spring, Spring Boot, Kafka, RESTful Web ... flexible spending account and health savings account; paid leaves (including 16 weeks of new parent ...

MasterCard

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

Build and own Java services and APIs that deliver AI-powered features, ensuring performance ... flexible spending account and health savings account; paid leaves (including 16 weeks of new parent ...

Mastercard, Inc.

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 ... flexible spending account and health savings account; paid leaves (including 16 weeks of new parent ...

MasterCard

Senior Software Engineer- RPPS Platform

O Fallon, MO · Remote

$114K - $151K/yr

The position requires strong expertise in Java, Spring Boot, API development, and modern front-end ... flexible spending account and health savings account; paid leaves (including 16 weeks of new parent ...

MasterCard

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Proven experience with backend development with JAVA required Familiarity with Spring Boot ... flexible spending account and health savings account; paid leaves (including 16 weeks of new parent ...

MasterCard

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

Strong proficiency in Java and Spring Boot framework development. Experience designing and ... flexible spending account and health savings account; paid leaves (including 16 weeks of new parent ...

Apex Informatics

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

St Louis, MO * 10+ years of hands-on software engineering experience * Excellent hands-on ... Ability to work with global teams and a flexible work schedule. * Must have excellent problem ...

Jobsbridge

Sr. Java Developer

Saint Louis, MO · On-site

$55.75 - $71/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers ... Experience building software in a continuous integration environment like Jenkins or any other ...

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All JobsJava Software Engineer JobsFlexible Java Software Engineer JobsFlexible Java Software Engineer Jobs in Saint Louis, MO

Flexible Java Software Engineer information

See Saint Louis, MO salary details

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$58

$82

How much do flexible java software engineer jobs pay per hour?

As of Aug 18, 2026, the average hourly pay for flexible java software engineer in Saint Louis, MO is $58.75, according to ZipRecruiter salary data. Most workers in this role earn between $48.37 and $66.39 per hour, depending on experience, location, and employer.

What is a flexible Java software engineer?

A Flexible Java Software Engineer is a software developer specializing in Java who can adapt to various roles, projects, or work environments. This may include working on different parts of the software stack, collaborating with cross-functional teams, or adjusting to changing project requirements. Flexibility in this context means being comfortable with both front-end and back-end development, learning new technologies as needed, and working in agile or dynamic settings. These engineers are valued for their ability to quickly respond to business needs while maintaining high-quality code and efficient development practices.

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

To thrive as a Flexible Java Software Engineer, you need strong proficiency in Java programming, object-oriented design, and familiarity with software development methodologies, typically supported by a degree in computer science or related experience. Experience with development frameworks (such as Spring or Hibernate), version control systems (like Git), and continuous integration tools is commonly required. Adaptability, problem-solving skills, and effective communication enable collaboration and quick learning in diverse project environments. These skills and qualities are crucial for delivering high-quality, maintainable software solutions that meet evolving business needs.

How do flexible Java software engineers typically balance independent work with team collaboration in their daily routines?

Flexible Java Software Engineers often enjoy a mix of autonomous coding time and collaborative tasks such as code reviews, sprint planning, and daily stand-ups. While much of their work may be completed independently—especially in remote or flexible environments—they regularly communicate with team members to align on project goals, troubleshoot issues, and share progress. Adapting to different communication tools and being proactive in updates helps ensure smooth collaboration and project success. This balance allows for both focused development and strong teamwork, which are key to thriving in flexible roles.

What is the difference between Flexible Java Software Engineer vs Java Developer?

AspectFlexible Java Software EngineerJava Developer
Required CredentialsBachelor's in Computer Science or related, Java certifications often preferredBachelor's in Computer Science or related, Java certifications often preferred
Work EnvironmentAgile teams, project-based, often remote or hybridOffice or remote, project-focused, collaborative teams
Employer & Industry UsageTech companies, startups, consulting firmsSoftware firms, financial institutions, tech companies
Common Search & ComparisonOften compared for flexibility and scope of workCompared for specialization in core Java development

The Flexible Java Software Engineer typically works in dynamic, project-based environments with an emphasis on adaptability and broad skill sets. Java Developers often focus on core Java coding and application development. While both roles require similar credentials, the engineer role emphasizes flexibility and cross-functional tasks, making it suitable for diverse projects and teams.

What are the most commonly searched types of Java Software Engineer jobs in Saint Louis, MO?

The most popular types of Java Software Engineer jobs in Saint Louis, MO are:

Flexible Java Software Engineer jobs near you

Mid Level Software Engineer 568

Freedom Technology Solutions Group

Saint Louis, MO • On-site

Full-time

Medical, Life, Retirement, PTO

Re-posted 9 days ago

Job description

Freedom Technology Solutions Groups is looking to add a mid level Software Engineer to the team! This position is fully onsite in St. Louis, MO.
Required Experience:
  • Demonstrated firsthand experience in at least two of the following:
    • Java, JavaScript or Python enterprise application development
    • Web services architecture, design, and development
    • Relational database design
    • Spatial database design
    • NoSQL database design
    • Micro-service architecture, design and development
    • Containerization and/or Orchestration
    • API Development
    • Cloud Native Development, AWS, Azure, Google Cloud or similar Cloud Service providers

Desired Experience:
  • Demonstrated experience in the development of customized code, scripts, modules, macro procedures, or libraries to implement specialized spatial analysis functions using languages such as Python, Java, JavaScript, PHP, C, Perl, or similar scripting and development languages.
  • Demonstrated experience in integration and tailoring of geospatial Commercial Off-The-Shelf (COTS) software applications; specialized software and database development and maintenance; integration of related specialized hardware; engineering studies to identify and remedy geodata processing bottlenecks.
  • Demonstrated experience with government and/or commercial imagery products, to include SAR or related RADAR imaging technologies.
  • Demonstrated experience working with and developing geospatial information systems (GIS) to include open-source and proprietary geospatial formats
  • Demonstrated experience in use and development with common geospatial tools, data, and operating platforms. These may include, but are not limited to:
    • Tools - Boundless Spatial suite, Remote View, PostGRES/PostGIS, Oracle Spatial and/or other geospatial databases, ArcGIS Desktop, ArcGIS Server, Image Server, and File Geodatabases.
    • Data formats including KML, KMZ, NITF, TIFF, JPEG, GeoPDF, and similar geo-related formats and data structures.
    • Operating Platforms - ESRI, OpenGeo Suite, or similar.
  • Demonstrated experience abstracting new or legacy systems via standards-based APIs to include web services. Including but not limited to Open Geospatial Consortium standards
  • Demonstrated experience in at least one of the following:
    • Developing terrain analysis visualization and algorithms.
    • Developing automated detection algorithms.

Education:
  • A Master of Science or equivalent degree in Computer Science, Engineering, Mathematics, Information Systems, Cybersecurity, or equivalent technical degree and a minimum of 2 years of experience in full stack development to include Java, Web services, Database, and micro-service development software, engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work.
  • Or, a Bachelor of Science or equivalent degree in Computer Science, Engineering, Mathematics, Information Systems or equivalent technical degree and a minimum of 4 years of experience in full stack development to include Java, Web services, Database, and micro-service development software, engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work.
  • Or, a minimum, as equivalent to education, of 6 years of experience in software engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work may be substituted for a technical degree.

What's in It for You?
Flexible work environment
A team mentality - work with friendly, like-minded professionals
Work with innovative, cutting edge technologies
Enjoy extremely competitive compensation and benefits
A work-life balance you can count on
Opportunities to grow and advance your career on our dime
The Benefits You Get with Freedom
Amazing benefits including matching 401k, fully paid medical, and more
Generous paid time off - including paid site closure days
Competitive salary offerings
Paid training and tuition reimbursement
Referral bonuses
Fully paid life and disability
Annual logo wear allowance
Company sponsored events (game nights, holiday party, summer party, happy hours)
Interested in learning more about Freedom and our culture? Contact us today! We're constantly hosting hiring events in our office and elsewhere, to help you get a sense of what life is like at Freedom before joining the team.
As an Equal Opportunity Employer, we do not discriminate on the basis of race, color, religion, sex, age, marital status, disability or veteran status
Applicant Federal & E-Verify Postings
VEVRAA Federal Contractor
Accessibility: If you need an accommodation as part of the employment process, please contact Human Resources at
Phone: 410-290-9035
Email: recruiting@goftsg.com
Equal Opportunity Employer, including disabled and veterans.
If you want to view the EEO Law poster, please choose your language: English - Spanish - Arabic - Chinese
If you want to view the EEO Law Supplement poster, please choose your language: English - Spanish - Chinese
If you want to view the Pay Transparency Policy Statement, please click the link: English

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