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Hire the best Java Developers in San Antonio, TX

Check out Java Developers in San Antonio, TX with the skills you need for your next job.
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Clients rate Java developers
Rating is 4.8 out of 5.
4.8/5
based on 218 client reviews
  • $150 hourly
    • 5.0/5
    • (70 jobs)
    🌟 I am a San Antonio, TX-based entrepreneur with a proven track record of 10+ years in project management, software development, and infrastructure management. My passion for coding fuels my drive to deliver innovative and impactful solutions for clients. 🔧 My expertise includes: ✔️ Software Development ✔️ Project Management ✔️ Infrastructure Management ✔️ Reverse Engineering ✔️ Systems Administration (Linux and Windows) 🏅 Key skills: ✔️ Linux ✔️ Windows ✔️ OpenAI APIs (ChatGPT, Whisper, Embeddings, Fine Tuning) ✔️ Java ✔️ Groovy ✔️ C# ✔️ Powershell ✔️ PHP ✔️ Bash ✔️ Git ✔️ JavaScript ✔️ MySQL ✔️ APIs 💡 WHY CHOOSE ME FOR YOUR NEXT PROJECT: ✅ Stellar Client Reviews: With a 100% job success score, I am dedicated to providing value and earning trust through excellent work and client satisfaction. ✅ Creative Problem Solver: My positive, can-do attitude sets me apart in overcoming challenges. ✅ Responsive and Open Communication: I prioritize keeping clients informed and engaged throughout the project. ✅ Seamless Project Planning & Execution: My streamlined approach ensures a smooth project experience. ✅ Over Delivering: My commitment to exceeding expectations results in exceptional final products. 🏆 CLIENT TESTIMONIALS: “Brandon does great work and is a very strong developer. Equally, he communicates very well, is professional, and is very easy to access. In a world of many people who can write code, most do not actually work with you like Brandon. You will not go wrong by choosing him.” "Brandon did an excellent job building the stock market indicator notification bot I requested. Very quick professional work, great communication, and built exactly what I wanted. I have worked with other freelancers before on various projects here on Upwork (check my profile) and by far this was the best experience I have had and I look forward to working on more projects with Brandon in the future. Thank you!" Ready to launch your next project? Contact me or click "hire/invite" to get started on our exciting journey together!
    Featured Skill Java
    Data Mining
    ChatGPT
    Apache Groovy
    Data Scraping
    FFmpeg
    Docker
    API Development
    PHP
    .NET Framework
    C#
    JavaScript
    Linux
    Python
  • $125 hourly
    • 5.0/5
    • (1 job)
    Data driven, detail oriented project manager with experience from $150k to $10m, with up to a dozen concurrent projects in motion. Experienced in integrating interdepartmental communication, new data acquisition methods, and on-boarding new techs and inspectors. A Certified Scrum Master with hands-on dev experience, I'm glad to work any side of a project.
    Featured Skill Java
    Software QA
    QA Testing
    Jira
    Grails
    Apache Groovy
    Bootstrap
    ASP.NET
    MySQL
    ASP.NET MVC
    CSS
    Python
    Django
    C#
    React
  • $125 hourly
    • 5.0/5
    • (6 jobs)
    Software Developer specializing in the Grails framework as well as mobile development. I bring a unique blend of frontend and backend development experience to projects. Previously dedicated to software quality assurance at Zelifcam, I have honed my skills in ensuring impeccable functionality, usability, and security for web applications. I am actively involved in designing and implementing responsive user interfaces, while also developing robust backend features to enhance overall functionality and performance. As a Software Developer specializing in full-stack web and mobile development, I leverage technologies like HTML, CSS, JavaScript, React, Vue, Java, Grails, SQL, Python, and Flutter. I’m skilled in creating intuitive interfaces and reliable backend systems, contributing to a broad range of projects—including web and mobile apps, data-driven tools, web scrapers, and business solutions. I focus on optimizing performance through seamless front-end and back-end integration, delivering impactful, user-centric experiences in collaborative settings. 🛠 Technical Expertise: • Frontend Development: HTML, GSP, JavaScript, React, CSS, SCSS, Bootstrap • Backend Development: Java, Groovy, Grails, REST APIs, Python • Mobile Development: Flutter, FlutterFlow • Software Testing: Manual & Automated Testing • Version Control: Git • Database: SQL & Database Design 👷‍♂️ Key skills: • Diligent Attention to Detail • Full-Stack Development Proficiency • Strong Analytical and Problem-Solving Abilities • Thorough Understanding of Software Development Life Cycle • Continuous Learning and Adaptability 💡 WHY CHOOSE ME FOR YOUR NEXT PROJECT: ➡️ Quality-Centric Approach: I am committed to delivering high-quality solutions that exceed client expectations, leveraging my background in QA to ensure rigorous testing and impeccable functionality. ➡️ Technical Versatility: From front-end to back-end development, I possess the skills and expertise to tackle diverse project requirements and challenges. ➡️ Innovative Solutions: I thrive on finding creative solutions to complex problems, delivering innovative and impactful solutions for clients. ➡️ Passion for Excellence: I am driven by a passion for excellence and a relentless pursuit of improvement, ensuring that your projects receive nothing but the best. Ready to elevate your software to new heights of quality and performance? Let's collaborate! Contact us or click "hire/invite" to embark on a journey towards flawless digital experiences!
    Featured Skill Java
    RESTful API
    Version Control
    Spring Boot
    Bootstrap
    Responsive Design
    GitHub
    Scrum
    Hibernate
    React
    SCSS
    MySQL
    CSS
    JavaScript
    HTML
  • $95 hourly
    • 5.0/5
    • (1 job)
    Professional Software Developer and Full Stack Web Developer with well-rounded support services experience involving team-building, training and mentoring as well as creation of new policy for various departments. Utilizing full-stack development to construct, design, and improve on websites that aid and promote user self-empowerment. Passionate about teamwork and the ability to create something that will help a user in their day-to-day lives. Currently dedicated to Quality Assurance at Zelifcam, ensuring our clients receive top-notch products offered through our services to guarantee satisfaction. Technical Expertise: • Frontend Development: HTML, JavaScript, React, CSS, SCSS, Bootstrap, Bulma • Backend Development: Java, REST APIs, Spring Boot, Thymeleaf • Software Testing: Manual & Automated Testing • Version Control: Git, GitHub, GitLab • Database: MySQL & Database Design Key skills: • Meticulous attention to detail • Proficient in diagnosing and resolving bugs • Expertise in Full-Stack Web Development • Effective time management, client communication and team worker with remote experience • Ensuring consistency with up-to-date information on technologies Why I'd Be A Great Selection for Your Upcoming Project: Commitment to Quality: I am dedicated to providing top-tier solutions that surpass client expectations, utilizing my QA expertise to ensure thorough testing and flawless performance. Technical Versatility: I have the skills and expertise to handle a wide range of project requirements and challenges, from front-end to back-end development. Creative Problem-Solving: Excelling at creating imaginative solutions for complex issues, providing clients with cutting-edge and effective results. Commitment to Excellence: My unwavering dedication to greatness and continuous improvement guarantees that your projects achieve the highest standards.
    Featured Skill Java
    React
    jQuery
    MySQL
    JavaScript
  • $40 hourly
    • 5.0/5
    • (1 job)
    I'm an up and coming Software Developer at UT Austin. I love learning new things and am always up for a challenge!
    Featured Skill Java
    R
    JavaScript
    HTML
    Python
  • $80 hourly
    • 5.0/5
    • (1 job)
    Solutions-oriented software engineer with experience in testing, and identifying and implementing solutions for quality improvement and cost reduction. Leverage exceptional project management and communication skills to support large-scale, Agile environments at Fortune 500 corporations. Ability to simultaneously grasp big picture and small details to break through roadblocks and to deliver on-time without compromising quality. Always willing to develop new skills involving technology.
    Featured Skill Java
    Software
    Spring Boot
    React
    Software QA
    Software Testing
    HTML
    TypeScript
  • $15 hourly
    • 5.0/5
    • (5 jobs)
    I am experienced at creating Python/C/Java scripts to help you automate small or large tasks. I can also write with SEO in mind for your blog or website.
    Featured Skill Java
    Content Writing
    Software Consultation
    Artificial Intelligence
    C
    Writing
    Blog Writing
    Python
    Scripting
  • $100 hourly
    • 0.0/5
    • (1 job)
    Enthusiastic Software Developer with extensive experience using Javascript, React, Java, SQL, and Spring. I am well-versed in creating and connecting APIs to varieties of complex front end interfaces. Experienced communicating effectively with non-technical verbiage to understand client needs, and delivering complex technical solutions to meet said needs.
    Featured Skill Java
    Grails
    CSS
    Database Management
    Apache Groovy
    JavaScript
  • $125 hourly
    • 0.0/5
    • (0 jobs)
    Experienced Lead Software Engineer specializing in Java REST APIs, Spring, microservices, and cloud technologies. Demonstrated expertise in designing and developing robust solutions, with a solid background in a wide range of technologies. Recognized for effective leadership, problem-solving acumen, and excellent communication skills.
    Featured Skill Java
    CI/CD
    C
    Agile Software Development
    Apache Kafka
    Amazon Web Services
    Apache Maven
    Microservice
    RESTful API
    Database
    Spring Boot
  • $25 hourly
    • 5.0/5
    • (1 job)
    An experienced Information Technology Air Force Veteran and creative writer, I am seeking a career as a software developer. With a passion for innovative solutions and storytelling, I have developed a versatile skill set in programming languages and full-stack web development. I have a demonstrated history of success in Communications Computer Systems (CCS) and customer service, and I can confidently lead teams, direct security support, and implement C2 interoperability solutions. I thrive in a dynamic culture where agility and adaptability are key, and I am always eager to learn and grow as a professional. I am excited to utilize my experience in a challenging role where I can leverage my expertise to drive success in a team-focused environment.
    Featured Skill Java
    GitHub
    RESTful API
    Agile Software Development
    Apache Tomcat
    Thymeleaf
    Spring Boot
    Spring MVC
    JSON
    AJAX
    CSS
    HTML
    Python
    Bootstrap
    JavaScript
  • $45 hourly
    • 5.0/5
    • (1 job)
    Highly skilled and accomplished Software Engineer with over 9+ years of expertise in Android native development. Proven track record, demonstrating strong leadership skills and the ability to drive successful project outcomes. A dedicated professional committed to delivering high-quality software solutions, leveraging strong problem-solving skills and a deep understanding of industry best practices. • Refactored Application to use Kotlin ( MVVM, Kotlin Coroutine) • Migrated app shared-preference storage to use Jetpack DataStore • Strong knowledge of Android SDK and Android development tools. • Experience building modern Android applications using Android Jetpack. • Strong knowledge of Android SDK and experience building modern Android applications using Android Jetpack Compose • Proficiency in Agile, Kanban, and Scrum development frameworks. • Solid understanding of Test-Driven Development (TDD) • Experience with CI/CD tools and processes. • Excellent problem-solving skills and ability to troubleshoot complex issues. • Strong interpersonal and communication skills. • Demonstrated ability to facilitate technical decisions and discussions.
    Featured Skill Java
    Android Room Persistence
    Android UI Design
    JetPack
    Product Development
    SDK
    Android SDK
    Android Studio
    Android App Development
    Kotlin
    Android
  • $48 hourly
    • 0.0/5
    • (0 jobs)
    Software Developer with 6 years of experience designing, developing, and deploying web-based applications using modern front-end and back-end technologies. Skilled in building responsive, scalable Single Page Applications with Angular and Java/Spring Boot in Agile Environments. - Strong understanding of building reusable components, custom directives, and responsive layouts - Built customized websites using WordPress with Elementor for dynamic, user-friendly design - Collaborative team player with deep Agile development experience
    Featured Skill Java
    Software Development
    Elementor
    WordPress
    Node.js
    Full-Stack Development
    Front-End Development
    MySQL
    Section 508
    Material UI
    Bootstrap
    Spring Boot
    Angular
    Agile Software Development
    Web Development
  • $35 hourly
    • 0.0/5
    • (0 jobs)
    SUMMARY "I'm 24 in a 68-year-old body," I often say, only half-joking. A lifelong software engineer, systems thinker, and early neural network pioneer, I stepped away from the tech world briefly—only to find retirement too quiet for a mind wired for complex problems. Now re-entering the freelance and consulting world, I bring decades of C/C++ experience, chaos theory expertise, and a passion for meaningful innovation. Let’s build something extraordinary.
    Featured Skill Java
    Predictive Modeling
    Software Development
    Data Science
    Scrum
    STL
    Microsoft Visual Studio
    JavaScript
    HTML
    C++
    C
  • $39 hourly
    • 0.0/5
    • (0 jobs)
    Highly motivated and detail-oriented Software Engineer with experience in front-end and full-stack development. Passionate about developing scalable web applications, optimizing performance, and contributing to high-impact projects. Strong background in software engineering principles, data structures, and problemsolving. Seeking a full-time Software Engineer/Developer role to leverage technical expertise and innovative thinking. Also, interested in AI and Data Science to develop cutting-edge solutions and drive technological advancements.
    Featured Skill Java
    Game Development
    PHP
    Agile Software Development
    SQL
    Node.js
    Matplotlib
    Python Scikit-Learn
    Python
    C#
    React Native
    React
    JavaScript
    Artificial Intelligence
    Web Development
  • $100 hourly
    • 0.0/5
    • (0 jobs)
    I'm a hybrid creative-technologist with a passion for both building things that work and writing things that move people. With 4+ years of experience split across software development, copywriting, and marketing. I bring an obsessive attention to detail, a love for clean execution, and a deep respect for the end user. I've collaborated with production teams, marketers, and engineers - and I speak just enough of everyone's language to ship brilliant things fast.
    Featured Skill Java
    AI Image Editing
    AI Content Writing
    AI Content Editing
    AI Consulting
    AI Bot
    Grammar
    Python
    C++
    Academic Editing
    Copywriting
    Proofreading
    Writing
    Content Writing
  • $19 hourly
    • 4.6/5
    • (2 jobs)
    With over 10 years of experience as a Unity Software Developer, I specialize in crafting immersive VR experiences, mobile games, and interactive applications. My expertise spans Unity3D, Unreal Engine, and C#, combined with a strong command of tools like Blender and GitHub to deliver polished, high-quality projects. I’m passionate about turning creative ideas into engaging experiences that captivate users and exceed expectations.
    Featured Skill Java
    Project Management
    Object-Oriented Design
    Game Development
    Software Debugging
    SQL Programming
    Game Design
    Unity
    C#
  • $35 hourly
    • 5.0/5
    • (2 jobs)
    I am a Software Engineer, I design and build websites, mobile apps, web3 apps. I have been working as a full-stack developer for more than 6 years. I use technologies: Languages: JavaScript, TypeScript, Java, Python, C++, C, C# and Rust Tools, frameworks, and libraries: NodeJs, ExpressJs, ReactJs, ReactNative, Angular, .NET, Unit and Integration Testing Databases: SQL, Postgres, MongoDB, MySQL Would love to work with you and help you in your projects! Contact me with: nathan.lechamo@gmail.com
    Featured Skill Java
    Algorithm Development
    Data Structures
    React
    Angular 6
    Android App Development
    ExpressJS
    MongoDB
  • $80 hourly
    • 5.0/5
    • (1 job)
    Project Manager and former National Security Agency (NSA) All Source Intelligence Analyst, instructor, and manager with strong leadership, team building, communication, and critical thinking skills. Capable of providing dedicated/quality work, honest communication, unwavering integrity, military resilience/experience, high attention to detail, and a strong tech background.
    Featured Skill Java
    GitHub
    Git
    jQuery
    Bootstrap
    React
    JavaScript
    HTML
    CSS
  • $55 hourly
    • 0.0/5
    • (0 jobs)
    I'm a skilled QA Automation and Manual Tester with expertise in designing and executing robust test suites to ensure software quality. Proficient in tools like Selenium, Playwright, and JavaScript, I specialize in automating complex workflows and conducting thorough manual testing to catch edge cases. I can quickly learn any tool you prefer to get the job done efficiently. With a strong background in agile environments and a keen eye for detail, I deliver reliable, high-quality results that enhance user experiences. Let’s build flawless software together!
    Featured Skill Java
    Content Creation
    WordPress
    Component Testing
    Functional Testing
    Regression Testing
    Manual Testing
    Front-End Development
    Python
    Cypress
    Selenium
    JavaScript
    TypeScript
    QA Software & Testing Tools
    Software QA
    QA Automation
    QA Testing
  • $24 hourly
    • 5.0/5
    • (1 job)
    Motivated Proficient Full Stack Developer with an Enthusiasm to complete any tasks at hand. A young new developer who is eager to learn as much as possible, with a phenomenal work ethic. My work background consists mainly of construction, so I am very well versed in the art of hard work and long hours. I served as an Infantryman in the Marine Corp for 4 years.. I have no problem tackling any delegated tasks by myself or working in a team with others. Ready for anything you need.
    Featured Skill Java
    API
    JSON
    MySQL
    API Development
    Bootstrap
    jQuery
    Product Development
    AJAX
    MySQL Programming
    Git
    Object-Oriented Programming
    HTML
    CSS
    JavaScript
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    Hello, I'm Kais Dewani, an experienced software developer with a background in release and automation engineering. I have collaborated with cross-functional teams to ensure the smooth and reliable release of software products. I'm also an Automation Test Engineer with experience in using Java, Selenium, TestNG, and Jenkins/Maven to design, build, and maintain test scripts and suites. I'm certified in AWS and Microsoft Azure, and have worked on several personal projects, including The Gist and StarTrivia. I'm always looking for new challenges and opportunities to learn and grow.
    Featured Skill Java
    Amazon
    Selenium
    Docker Compose
    Jenkins
    Microsoft Azure
    Terraform
    Python
    Docker
    CI/CD
  • $45 hourly
    • 0.0/5
    • (0 jobs)
    Highly skilled in Website Design, App Development, Digital Marketing, IT Consultation and Automation through Innovation Whether you’re trying to win work, list your services, or create a new online store, I can help. Knows Java, AWS, GCP, HTML and CSS3, PHP, jQuery, Wordpress, Laravel, Oracle ATG, Full project management from start to finish Regular communication is important to me, so let’s keep in touch.
    Featured Skill Java
    AWS Development
    WordPress Development
    Selenium
    Laravel
    PHP
    Oracle ATG Web Commerce
    J2EE
    Automation
    Web Development
    Ecommerce Website
    Ecommerce
    Scripting
    Script
    Web Application
  • $20 hourly
    • 0.0/5
    • (0 jobs)
    Hi there! I'm a Full-Stack Developer specializing in web development, app creation, backend systems, and UI/UX design. I’m passionate about building modern, responsive, and user-friendly websites and applications that not only look great but also perform beautifully. I bring a full range of skills to every project, including: 🔹 Frontend Development: HTML, CSS, JavaScript, responsive design, and creating beautiful UI/UX experiences 🔹 Backend Development: Building APIs, database management, server-side logic, and system integration 🔹 App Development: Web apps, mobile-first designs, and cross-platform solutions 🔹 CSS & UI/UX Expertise: Clean, accessible, pixel-perfect designs focused on the user journey Whether you need a stunning landing page, a full-stack web application, a custom backend, or a complete UX/UI redesign, I'm here to deliver high-quality results tailored to your goals. I believe in clean code, clear communication, and creative problem-solving. Why work with me? 🔹 Fast communication and project updates 🔹 Detail-oriented and deadline-driven 🔹 Flexible to your needs — small fixes, full builds, or long-term projects Always focused on building for performance, scalability, and user experience Let's build something amazing together! 🚀 Feel free to reach out — I'm excited to hear about your project.
    Featured Skill Java
    Business Analysis
    Salesforce
    JavaScript
    SQL
    CSS
    HTML
    Python
    TypeScript
    App Development
    Web Development
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    Aspiring developer who is trying to build my portfolio. I am efficient in Python, C, and Java and am excited to expand my knowledge. I've always had a mind that works differently than others. Let's put it to use to take care of your business needs.
    Featured Skill Java
    Django
    SQL
    C
    C++
    HTML
    Web Application
    Web Development
    Desktop Application
  • $20 hourly
    • 0.0/5
    • (0 jobs)
    Motivated and detail-oriented junior full-stack developer with a strong foundation in web development principles and a passion for creating efficient and user-friendly applications. My experience includes developing front-end interfaces with JavaScript, HTML, and CSS, as well as building back-end services using Java and Spring Boot. I have a proven ability to learn quickly, demonstrated by my completion of an intensive full-stack development bootcamp and coursework in Computer Science. My project experience ranges from building web applications with Spring Boot (SpringYard) to developing fundamental data structures and API interactions. I am eager to contribute my skills and learn from experienced professionals to deliver high-quality solutions. Please take a look at my GitHub for a list of my current and past repositories/projects I have worked on, and feel free to ask any questions. github.com/Galm1
    Featured Skill Java
    SQL
    Node.js
    Front-End Development
    Back-End Development
    Web Development
    Database Design
    Data Structures
    API Development
    Python
    CSS
    HTML
    JavaScript
  • $95 hourly
    • 0.0/5
    • (0 jobs)
    Objective Results-driven Computer Engineering graduate with hands-on experience in Java, Python, Siemens DCS programming, API development, and project management. Seeking to leverage technical expertise and innovative solutions to contribute to engineering projects in a dynamic environment. Strong leadership abilities and a proven track record of driving team success to meet project goals and deadlines. Professional Summary An accomplished Computer Engineering graduate from McNeese State University with a strong foundation in software development, hardware programming, and system integration. Experienced in designing and implementing API solutions, building hardware projects, and leading collaborative teams. Adept in coding languages such as Java, Python, and C++, with solid skills in project management and Agile methodologies.
    Featured Skill Java
    Git
    JUnit
    Spring Framework
    Spring Boot
    RESTful API
    SQL
    Arduino
    C++
    Python
    JavaScript
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    TECHNICA L SK ILLS Java (Spring Boot, JUnit, Maven, Gradle), JavaScript, Node, Python, Bash, SQL, NoSQL, Redis, Linux, Docker, SDLC, CI/CD, TeamCity, Jenkins, BitBucket, Git, GitHub, AWS, Agile
    Featured Skill Java
    SQL
    Kotlin
    Scripting
    Game Design
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