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Freelance Java Back End Developer Jobs in Houston, TX

AgileEngine

Senior Backend Engineer ID63544

Houston, TX · On-site

ABOUT THE ROLE We are looking for a DevOps Engineer to design, build, and operate containerized and ... Working knowledge of Java and Spring. PERKS AND BENEFITS * Professional growth : Mentorship ...

Outlier AI

OpenClaw Engineer (Remote)

Houston, TX · Remote

Ideal Qualifications * 2+ years of experience in backend engineering, AI automation, or complex ... Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and ...

Outlier AI

OpenClaw LLM Engineer (Remote)

Houston, TX · Remote

Ideal Qualifications * 2+ years of experience in backend engineering, AI automation, or complex ... Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and ...

Outlier AI

AI Workflow Engineer (Remote)

Houston, TX · Remote

Ideal Qualifications * 2+ years of experience in backend engineering, AI automation, or complex ... Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and ...

Outlier AI

OpenClaw AI Engineer (Remote)

Houston, TX · Remote

Ideal Qualifications * 2+ years of experience in backend engineering, AI automation, or complex ... Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and ...

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$9

$52

$70

How much do freelance java back end developer jobs pay per hour?

As of May 30, 2026, the average hourly pay for freelance java back end developer in Houston, TX is $52.17, according to ZipRecruiter salary data. Most workers in this role earn between $46.39 and $60.14 per hour, depending on experience, location, and employer.

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

To thrive as a Freelance Java Back End Developer, you need strong proficiency in Java, object-oriented programming, RESTful API design, and experience with frameworks like Spring or Hibernate, typically supported by a relevant degree or proven project portfolio. Familiarity with version control systems (such as Git), build tools (like Maven or Gradle), cloud platforms, and continuous integration/continuous deployment (CI/CD) pipelines is highly valued. Outstanding problem-solving abilities, self-motivation, and effective client communication set top freelancers apart. These skills ensure you can deliver robust, maintainable solutions independently and build lasting client relationships.

What are some common challenges faced by Freelance Java Back End Developers when working with multiple clients simultaneously?

Freelance Java Back End Developers often juggle several projects at once, which can present challenges in time management, prioritizing tasks, and aligning with different client expectations. Each client may use distinct tech stacks, communication tools, and development processes, requiring adaptability and strong organizational skills. Clear communication, setting realistic deadlines, and using project management tools can help freelancers maintain quality and meet deliverables across diverse projects.

What does a Freelance Java Back End Developer do?

A Freelance Java Back End Developer is a software professional who specializes in building and maintaining the server-side logic of web applications using the Java programming language. They work independently on a contract basis for various clients, handling tasks such as developing APIs, managing databases, and ensuring the performance and security of the application’s back end. Their responsibilities often include collaborating with front-end developers, integrating third-party services, and troubleshooting server-side issues. Freelancers in this role can work remotely or onsite, offering flexibility to both clients and developers.

What is the difference between Freelance Java Back End Developer vs Freelance Java Software Engineer?

AspectFreelance Java Back End DeveloperFreelance Java Software Engineer
CredentialsJava certifications, experience in backend frameworksJava certifications, broader software development skills
Work EnvironmentRemote, project-based, client-specificRemote or on-site, project or product-focused
Industry UsagePrimarily in backend development projectsInvolved in full software development lifecycle
Search & Comparison IntentFocus on backend Java skillsBroader software development expertise

While both roles involve Java skills, a Freelance Java Back End Developer specializes in server-side development, focusing on backend systems. A Freelance Java Software Engineer may have a broader scope, including full-stack or application development, often requiring additional skills beyond backend work.

What are the most commonly searched types of Java Back End Developer jobs in Houston, TX? The most popular types of Java Back End Developer jobs in Houston, TX are:
What are popular job titles related to Freelance Java Back End Developer jobs in Houston, TX? For Freelance Java Back End Developer jobs in Houston, TX, the most frequently searched job titles are:
What job categories do people searching Freelance Java Back End Developer jobs in Houston, TX look for? The top searched job categories for Freelance Java Back End Developer jobs in Houston, TX are:
What cities near Houston, TX are hiring for Freelance Java Back End Developer jobs? Cities near Houston, TX with the most Freelance Java Back End Developer job openings:
Freelance Java Back End Developer jobs near you
Infographic showing various Freelance Java Back End Developer job openings in Houston, TX as of May 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 80% In-person, and 20% Remote job distribution, with an average salary of $108,515 per year, or $52.2 per hour.
OpenClaw Agent Developer (Remote)

OpenClaw Agent Developer (Remote)

Outlier AI

Houston, TX • Remote

Full-time

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

Job description

About the Project

Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw?

We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents. Our projects focus on teaching these systems how to design, coordinate, and optimize complex, real-world architectural workflows.

Whether you are a passionate orchestration guru or experienced software developer — we want you to help us train the world's most advanced generative systems.

Ideal Qualifications

  • 2+ years of experience in backend engineering, AI automation, or complex systems integration.
  • Proven ability to build and maintain production-grade software with modular separation (e.g., distinct services for data parsing, logic processing, and reporting).
  • Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases.
  • Practical experience building for live, non-mocked environments and handling multi-turn system interactions.
  • Outstanding attention to detail and the ability to provide clear, high-density technical feedback on complex system behaviors.

Nice to have

  • Expertise building multi-stage coordination tasks where data acquisition leads to reasoned output.
  • Hands-on experience integrating agents with live tools such as Supabase, Gmail, and various APIs to solve real-world problems.
  • High level of comfort implementing persistent state and session discovery using MEMORY.md to track agent progress.
  • Experience identifying subtle failures like privacy leaks, authority escalation, or indirect prompt injections.

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