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Freelance Java Spring Developer Jobs in Iowa (NOW HIRING)

The Principal Developer is a member of the application development team. The position is ... Experience with Java 11 and open source frameworks (e.g., Spring Ecosystem, Hibernate, jUnit5 ...

Deep understanding of Core Java (Java 11/17+), JVM internals, memory management, tuning, and ... Experience with Spring in particular Spring Boot. - RESTful API Design: Experience designing ...

DevOps Engineer - IT

Ankeny, IA ยท On-site

$50 - $68.50/hr

PURPOSE The DevOps Engineer - IT is responsible for supporting and maintaining DevOps ... Working knowledge of Java and/or Spring Boot, bash & Linux shell scripting and SQL * Familiarity or ...

The Lead Developer is a member of the application development team. The position is responsible for ... Experience with Java 8 or beyond and open source frameworks (e.g., Spring Ecosystem, Hibernate ...

The Lead Developer is a member of the application development team. The position is responsible for ... Experience with Java 8 or beyond and open source frameworks (e.g., Spring Ecosystem, Hibernate ...

Senior Developer

Des Moines, IA ยท Hybrid

$91K - $108K/yr

The Senior Developer is a member of the application development team. The position is responsible ... Experience with Java 11 and open source frameworks (e.g., Spring Ecosystem, Hibernate, jUnit5 ...

Showing results 21-40

Freelance Java Spring Developer information

What is the difference between Freelance Java Spring Developer vs Java Backend Developer?

AspectFreelance Java Spring DeveloperJava Backend Developer
CredentialsOften requires Java certifications, Spring certifications, and relevant experienceTypically requires a Java degree or equivalent experience, with or without certifications
Work EnvironmentIndependent, project-based, remote or on-site freelance workFull-time employment in a company or organization, often in an office setting
Employer & Industry UsageClients across various industries hiring for specific projectsEmployers in tech, finance, e-commerce, and other sectors with ongoing backend needs
Search & Comparison IntentLooking for freelance opportunities or contract work in Java Spring developmentSeeking full-time or permanent backend development roles in Java

In summary, Freelance Java Spring Developers typically work independently on short-term projects, requiring specific certifications and flexible work environments. Java Backend Developers usually hold full-time roles within organizations, focusing on ongoing backend system development.

What is a Freelance Java Spring Developer?

A Freelance Java Spring Developer is a self-employed software professional who specializes in building, maintaining, and optimizing applications using the Java programming language and the Spring framework. These developers work on a contract or project basis for various clients, rather than as full-time employees for a single company. Their responsibilities often include designing backend systems, integrating APIs, and ensuring applications are scalable and secure. Freelance Java Spring Developers typically manage their own schedules and may work remotely for clients around the world.

What are the key skills and qualifications needed to thrive as a Freelance Java Spring Developer, and why are they important?

To thrive as a Freelance Java Spring Developer, you need a solid understanding of Java programming, Spring Framework (including Spring Boot), and experience with RESTful APIs, typically supported by a degree in computer science or relevant certifications. Familiarity with tools like Maven, Git, Docker, and cloud platforms such as AWS or Azure is often required. Strong problem-solving, time management, and client communication skills help you stand out in this role. These competencies ensure you can deliver robust solutions efficiently while managing multiple clients and projects in a dynamic freelance environment.

What are the most common challenges faced by Freelance Java Spring Developers when working with multiple clients simultaneously?

Freelance Java Spring Developers often juggle projects for multiple clients, which can pose challenges such as managing shifting priorities, aligning with different coding standards, and keeping up with varied communication styles. Successfully navigating these requires strong organizational skills, clear project documentation, and proactive communication to set expectations. Additionally, freelancers must stay updated with the latest Spring framework updates to deliver high-quality, maintainable solutions across diverse client environments.
What are the most commonly searched types of Java Spring Developer jobs in Iowa? The most popular types of Java Spring Developer jobs in Iowa are:
What are popular job titles related to Freelance Java Spring Developer jobs in Iowa? For Freelance Java Spring Developer jobs in Iowa, the most frequently searched job titles are:
What job categories do people searching Freelance Java Spring Developer jobs in Iowa look for? The top searched job categories for Freelance Java Spring Developer jobs in Iowa are:
What cities in Iowa are hiring for Freelance Java Spring Developer jobs? Cities in Iowa with the most Freelance Java Spring Developer job openings:
Infographic showing various Freelance Java Spring Developer job openings in Iowa as of June 2026, with employment types broken down into 88% Full Time, and 12% Contract. Highlights an 100% In-person job distribution.
Software Developer (mid-level) - 100% Remote - Public Trust

Software Developer (mid-level) - 100% Remote - Public Trust

ATTAINX INC

Sioux City, IA โ€ข On-site

$75K - $92K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 21 hours ago


Job description

Job Title: Software Developer - Mid-Level (Java)

Location: Remote, with occasional travel as required

Clearance: Must be a US Citizen able to OBTAIN a favorable Public Trust

Citizenship: US Citizen


AttainX Inc. is seeking a Mid-Level Software Developer to support the U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) trade certification systems under an Operations and Maintenance (O&M) and Development, Modernization, and Enhancement (DME) contract. The developer will design, build, and maintain features for the Lacey Act Web Governance System (LAWGS), the Phytosanitary Certificate Issuance and Tracking (PCIT) system, and the Veterinary Export Health Certification System (VEHCS) โ€” Java-based web applications that enable importers, exporters, brokers, accredited veterinarians, and state and federal officials to file declarations and generate export health and phytosanitary certificates.

The ideal candidate is a hands-on mid-level developer with strong Java skills, experience deploying and operating applications in Microsoft Azure, and practical experience generating documents and reports with JasperReports and iText. Working within an Agile/SAFe delivery team, the developer will deliver enhancements, resolve production issues, and help keep these mission-critical trade systems reliable and compliant.

Qualifications and Education Requirements:

  • Bachelorโ€™s degree in Computer Science, Software Engineering, Information Technology, or a related field; equivalent professional experience will be considered in lieu of a degree.
  • 3+ years of professional software development experience at a mid-level, including full lifecycle design, development, testing, and maintenance.
  • Strong hands-on experience developing with Java, including modern frameworks such as Spring / Spring Boot, RESTful web services, and ORM technologies (JPA/Hibernate).
  • Experience developing, deploying, and maintaining applications in Microsoft Azure (e.g., App Service, Azure SQL, storage, and related cloud services).
  • Practical experience building and maintaining reports, certificates, and PDF document outputs using JasperReports / Jaspersoft Studio and iText.
  • Proficiency with relational databases and SQL, including writing and tuning queries and stored procedures.
  • Experience with version control (Git) and CI/CD pipelines and tooling.
  • Experience delivering in Agile or SAFe environments, including participation in sprint planning, estimation, and demos.
  • Strong analytical, troubleshooting, and communication skills, with the ability to work collaboratively across development, testing, and O&M teams.
  • US citizenship with the ability to obtain and maintain a favorable Public Trust background investigation.

Preferred Qualifications:

  • Prior experience supporting federal government IT programs, particularly USDA or APHIS trade, import/export, or certification systems (LAWGS, PCIT, VEHCS, or similar).
  • Microsoft Azure certification (e.g., AZ-204 Developer Associate or AZ-900 Fundamentals).
  • Certified SAFeยฎ Practitioner or equivalent Agile certification.
  • Experience integrating with identity and access management platforms such as USDA eAuthentication.
  • Familiarity with front-end web technologies (JavaScript, Angular, or React) and secure coding practices for federal applications.

Job Duties:

  • Design, develop, test, and maintain Java application features and services for the LAWGS, PCIT, and VEHCS systems across both O&M and DME work streams.
  • Develop and maintain document and report generation using JasperReports and iText to produce phytosanitary certificates, veterinary export health certificates, Lacey Act declarations, and program reports in PDF and related formats.
  • Build, configure, deploy, and maintain application components hosted in Microsoft Azure, and support cloud performance, scalability, and reliability.
  • Develop and maintain RESTful APIs and integrations, including with USDA eAuthentication and other program services.
  • Analyze, reproduce, and resolve production defects and service requests reported through the help desk, providing timely fixes and root-cause analysis.
  • Implement DME enhancements and modernization efforts, translating requirements and user stories into working, tested software.
  • Write and maintain unit and integration tests, participate in peer code reviews, and follow secure coding and quality standards.
  • Contribute to and maintain CI/CD pipelines to support consistent, automated builds, testing, and deployments.
  • Support release, regression, and user acceptance testing activities and assist with deployment coordination.
  • Create and maintain technical documentation, including design notes, deployment guides, and knowledge base content.
  • Participate in Agile/SAFe ceremonies and collaborate with product owners, testers, and O&M staff to improve delivery and system quality.

Non-Essential Functions:

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

About Us:

AttainX Inc. is a Women Owned Small Business (WOSB), Economically Disadvantaged WOSB (EDWOSB), CMMC Level 2, CMMI Level 3, ISO 9001:2015 certified QMS and Silver Level SAFe Partner. For more than 15 years, AttainX, Inc. has delivered emergent technologies, software products, and high-quality services that meet the needs of our Federal Government customers.

The last 4 years have shown significant company growth as we have increased our contracts portfolio and hold the โ€œBest in Classโ€ contract vehicles, GSA MAS and OASIS Small Business and 8(a) Pools 1, 2 and 3. In addition, we are prime on several Agency Specific IDIQs and BPAs with the National Oceanic and Atmospheric Administration, Department of Energy, Navy, Health and Human Service, USCIS and the Defense Intelligence Agency.

AttainX is dedicated to quality and best practices for the services we provide. We understand our people are the key ingredient to ensuring our customers Mission and Goals are met with excellence.

Benefits:

Competitive compensation and benefits packages including paid vacation, medical, dental, vision, matching 401K plan, tuition/training reimbursement, and Long & Short-Term Disability.

EEO Commitment:

AttainX is an equal employment opportunity employer, committed to providing a workplace free from discrimination based on Title VII of the Civil Rights Act, VEVRAA and Section 503, or other status protected by applicable federal, state, local, or international law. These protections also extend to applicants.

Accommodations:

Individuals with a disability who would like to request a reasonable workplace accommodation may send an email to Human Resources indicating the specifics of the assistance needed.

Physical Demands:

Sitting and working on a computer for long, continuous periods each day; effective communications by telephone, email, and face-to-face; standing, walking, and sitting; handling and feeling objects or controls; reaching; talking and hearing; lifting and/or moving up to 10 pounds; and specific vision abilities including close vision, distance vision, color vision, peripheral vision, depth perception, and the ability to adjust and focus.

Work Environment: The noise level in the work environment is usually moderate.