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Hire the best Java Developers in Queensland

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  • $60 hourly
    • 5.0/5
    • (36 jobs)
    Alexa Skills and Ok Google Voice Assistants, including Smart Home. End-to-end design+development+moving live. Currently based in New Zealand, and no problem to overlap with PST, EDT or AEDT. Masters - Information Technology, and 10+ years of experience as a certified Java Developer and Java EE Architect, certified SCRUM Master. Worked as a Software Professional in Australia, France, Russia, India and New Zealand, and have been exposed to lots of diversity and multicultural communication. I'm ok with both working in a team, as well as independently.
    Featured Skill Java
    Alexa Skills Kit
    Python
    RESTful Architecture
    Code Review
    Node.js
    Microservice
    API Development
    Google Actions
    AWS Lambda
  • $15 hourly
    • 5.0/5
    • (13 jobs)
    A diligent and hardworking individual seeking new opportunities to enhance expertise in Software Quality Assurance. Highly organized, capable of working efficiently in high-pressure environments, both within a team and autonomously. Possessing in-depth knowledge of Quality Assurance processes, Agile Methodology, and Automated Testing using frameworks such as Selenium, Cucumber, AShot, and Junit. I also have expertise in automated REST API testing using Java with IntelliJ for building automated tests, and proficiency in Postman with Swagger for API testing.
    Featured Skill Java
    Rest Assured
    JUnit
    JetBrains IntelliJ IDEA
    REST API
    Swagger
    Cucumber
    Selenium
    Quality Assurance
    Automation
    Jira
    Web Testing
    Postman
    Manual Testing
  • $80 hourly
    • 5.0/5
    • (2 jobs)
    Hi there! I'm a full-stack developer and owner of a small software company; freelancing to pick-up some interesting side projects. Under my company, Persephia, I have worked with startups, large businesses, and government bodies alike. I have a bachelor's in Computer Science from the University of Queensland, where I have also taught introductory software courses in various capacities for the past 6 years. Core Value-adds - There are thousands of developers out there, making it difficult to find the contractor who's going to be the right fit for your business. The focus of my company, and what I believe sets it aside from the rest, is our focus on working closely with the customer to really understand their needs, instead of rushing to build a partial solution. - We operate with a tight customer-feedback loop. At the end of the day, we want to make sure we're building you a product you love, and this means keeping our finger on the pulse. We include the client in our internal process management tools, and involve them throughout the development process. - We see our clients as long term relationships rather than flings, and we value the sort of open communication that a long term relationship requires. As an aside, these values are all interpersonal because we've come to see them as more important even than the tech we build. A perfect piece of software that's poorly suited to the customers problem, or whose use is poorly communicated, is actually a useless piece of software. Proficient Technologies (Web & Infra) - React with Nextjs, Remix, Hydrogen or barebones with Vite - Shadcn, tailwind, antd - GCP, Firebase, Cloudflare, Terraform, slightly less experience with AWS General Proficiencies - Our team are python experts, with extensive experience in AI/ML research and development. - TS/JS, which has been our bread and butter for the past few years. - Java (although we are tentative to pick up java work at this point). - Academic writing and course development. - LaTeX Jobs that you should contact us for: - Anything in the education sphere - General software/web development - Custom E-commerce work with Shopify Hydrogen. - Automation and data pipelines. Get in contact if you think we could be a good fit for you :)
    Featured Skill Java
    Godot
    Firebase
    Cloudflare
    Django
    Python
    Node.js
    Shopify
    Remix
    Next.js
    React
    TypeScript
  • $50 hourly
    • 5.0/5
    • (10 jobs)
    I'm a developer with over 20 years experience in front-end and back-end development and a passion for continuous improvement: - Excellent communication skills - Excellent analysis, problem solving and development skills - Experience in writing robust, for 24x7 highly available systems - Focus on producing high-quality and supportable code - Experience in multiple languages and database technologies
    Featured Skill Java
    TypeScript
    Golang
    Systems Development
    JavaScript
    Problem Solving
    C#
    Oracle
    Solution Architecture
    Requirement Analysis
    Microsoft SQL Server
    Python
    Docker
    Node.js
  • $30 hourly
    • 5.0/5
    • (3 jobs)
    I am a polyglot software developer, with hands on developing experience in Python, JavaScript and Java. Friendly, dedicated and conscientious with the ability to persevere and succeed in every challenge. I have a curious mind and I strongly value people who propose a new perspective to the problem at hand. A developer by choice with a built-in DNA to solve problems. Skills: Reactjs, Nextjs, GQL, CSS , Redux, redis
    Featured Skill Java
    JavaScript
    React
    MongoDB
    Docker
    Node.js
    NoSQL Database
    Docker Compose
    SQL
    Python
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    As an Automation Test Engineer at GSB, I work on a global product that operates at the heart of the Australian financial markets. I use technology to develop innovative solutions that make life easier for our customers and create value for our shareholders. I have a Master of Information Technology and Computer Network from Charles Sturt University Australia, and I have 6+ years of experience in testing different products and services. I am skilled in various tools and programming languages, such as Java, Python, C#, Javascript, Typescript, Selenium, Specflow, Cucumber, Cypress, Quality Center, JIRA, Testlink, Bugzilla, Mantis, J-meter, K6, Git, and Eclipse. My key responsibilities include driving end-to-end testing across a variety of platforms, developing and maintaining automation test suite using Serenity BDD, developing test plan, test scope and automation test report for the project, designing and developing automation test plan, and partnering closely with other agile squad
    Featured Skill Java
    Git
    Jira
    Testing
    Software QA
    Test Requirements
    Test Results & Analysis
    Beta Testing
    C#
    Manual Testing
    API Testing
    Selenium WebDriver
    Software Testing
    Test Development
  • $70 hourly
    • 0.0/5
    • (1 job)
    I’m a skilled web developer with over 6 years of experience building scalable, high-quality applications. I specialize in modern web technologies like React, Next.js, and TypeScript, delivering responsive and user-friendly solutions tailored to client needs. Whether you need a custom web app, front-end development, or back-end integration, I bring expertise, attention to detail, and a collaborative approach to every project.
    Featured Skill Java
    Spring Boot
    Kotlin
    Node.js
    Next.js
    React
    TypeScript
    Web Development
  • $70 hourly
    • 0.0/5
    • (0 jobs)
    Backend Engineer with 5+ years of experience building and scaling systems. At Dondo, I design and build backend features for marketplace integrations (Shopify, Amazon, MercadoLibre, WooCommerce) and use LLMs (like OpenAI) to optimize product listings. Skilled in TypeScript, Redis, PostgreSQL, Python, Google Cloud, GraphQL, and SSE. Excited to explore blockchain development and LLM fine-tuning. Outside of work, I train for endurance rides like the Indian Pacific Wheel Ride and upcoming adventures like Betang Jawa and Japan’s Odyssey.
    Featured Skill Java
    Front-End Development
    Cloud Architecture
    Software Development
    API Development
    App Development
    Software Architecture
    React
    Node.js
    TypeScript
    Artificial Intelligence
  • $35 hourly
    • 0.0/5
    • (0 jobs)
    Hi, I’m Kavya—a frontend developer with 4 years of experience in PL/SQL development, manual testing, and production support. I specialize in building responsive web interfaces using HTML, CSS, and React, with a strong background in debugging, quality assurance, and backend logic. I’m reliable, detail-oriented, and ready to help you build clean, user-friendly applications.
    Featured Skill Java
    HTML
    Python
    REST API
    React Bootstrap
    JavaScript
    CSS 3
    Oracle PLSQL
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    Hi! I’m a passionate and detail-oriented developer with strong experience in scripting with Python, Java, and C++. I specialize in writing clean, efficient code to automate tasks, develop tools, or bring custom software ideas to life. Beyond coding, I’m also a meticulous Quality Assurance tester for both games and websites. Whether you're launching a new app or maintaining an existing product, I can find bugs before your users do. I provide comprehensive testing reports, UX feedback, and actionable suggestions. As a bug bounty hunter, I bring a security-focused mindset to everything I test. I actively look for vulnerabilities and exploits—so you can patch them before they become a problem. 🔧 My services include: Script writing and automation in Python, Java, and C++ Functional and UI testing for games and web applications Detailed bug reports with steps to reproduce Security testing and vulnerability identification (Bug Bounty style) Let's make your software faster, cleaner, and more secure.
    Featured Skill Java
    C++
    Python
    Desktop Application
    Alpha Testing
    Software QA
    Scripting
    Script
  • $45 hourly
    • 5.0/5
    • (8 jobs)
    🚀 Transforming Ideas into Intelligent Solutions Hello there! I'm Mubashir Imran, a passionate and results-driven professional thriving at the intersection of artificial intelligence, machine learning, and software development. Based in Brisbane, Queensland, Australia, I bring a wealth of experience and expertise to the table. 🎓 Education and Expertise: Hold a PhD in Computer Science from The University of Queensland, specializing in recommender systems and federated learning. Master’s degree in Computer Science from Information Technology University. Bachelor's degree in Computer Science from the University of Central Punjab. 💡 Top Skills: Full-Stack Development: Expertise in MERN stack (MongoDB, Express.js, React, Node.js) for building robust applications. Cloud Platforms: Proficient in AWS and Google Cloud Platform (GCP) for scalable and efficient cloud solutions. Machine Learning & AI: Advanced knowledge in developing intelligent systems using Python, TensorFlow, PyTorch, and federated learning techniques. Java and Python: Extensive experience in backend development, data integration, and software engineering. 🛠️ Professional Experience: 1: AI Consultant at Ibtidah Solutions: Leading the implementation of Conversational AI technologies and managing Python and web-based projects. 2: Software Development Engineer at Amazon Groceries: Contributed to out-of-stock services and Amazon Fresh user interfaces, improving customer engagement and operational efficiency. 3: Data Science Researcher at The University of Queensland: Focused on recommender systems and federated learning, with several impactful publications. 🏆 Honors and Awards: Recipient of the Best Student Paper Award and Magna Cum Laude honors. Recognized with UQ Fully Funded Scholarship and ITU Graduate Fellow Scholarship. 📚 Certifications: Certified in Databases and SQL for Data Science, Python for Data Science and AI, Machine Learning with Python, and Data Visualization with Python. 🌐 Languages: Fluent in both Urdu and English, facilitating effective communication across diverse teams and audiences. 🔍 What Sets Me Apart: Expertise in developing privacy-protected streaming services and decentralized recommender systems. Proven track record in processing large datasets with a focus on efficiency and scalability. Adept at leveraging diverse tools and languages, including TensorFlow, PyTorch, Kotlin, Java, Python, and more. Top-rated on Upwork, reflecting my dedication to providing exceptional service and achieving high client satisfaction. Let’s collaborate to transform your ideas into intelligent, impactful solutions!
    Featured Skill Java
    TypeScript
    Angular
    Node.js
    React
    C#
    WordPress
    Data Scraping
    Database
    Artificial Neural Network
    SQL
    Machine Learning
    Python
    Deep Learning
    Machine Learning Model
  • $55 hourly
    • 0.0/5
    • (0 jobs)
    A Full Stack Jakata EE Developers, have recently, ported existing J2EE applications to Jakata EE and Quarkus, built White Label Video Online Training Platform, White Label Project Management Application, Application for a Charity Managing At Risk Kids and reporting to Government. An IoT Warning System for Noisy and chaotic Workplace Environments Indoor and Outdoor, using Google Cloud Functions, Jakata EE, Vue.js, CouchDB, Android and Android Wear 2.0, Kubernetes, Quarkus Practise Domain Driven Design and an Agile Process
    Featured Skill Java
    RESTful Architecture
    Apache CouchDB
    Android
    Google Cloud Platform
    Vue.js
    Web Services Development
    Android Things
    JSON
  • $30 hourly
    • 0.0/5
    • (1 job)
    Seasoned, all-round software engineer with an edge in efficiency. Worked at most stages of the development life cycle, and dealt with most aspects. Able to balance competing aspects, and keeping eye for detail without losing overview. Highly proficient in : - Systems programming: C, Linux - Networking: ethernet to HTTP(s) - Realtime / embedded - Scientific computing
    Featured Skill Java
    Proofreading
    VHDL
    Assembler
    C++
    Linux
    C
    TCP/IP
    HTTP
    Git
  • $7 hourly
    • 0.0/5
    • (0 jobs)
    I am a fullstack software developer. I mostly work with TypeScript, PostgreSQL, node.js, React and NextJS. Though I am open to working with other technologies.
    Featured Skill Java
    TypeScript
    PostgreSQL
    Docker
    Amazon EC2
    Kubernetes
    MongoDB
    Electron
    JavaScript
    Python
    Node.js
  • $12 hourly
    • 0.0/5
    • (0 jobs)
    I’m an experienced Quality Engineering Specialist currently working with the largest bank in Australia. While I’m new to Upwork, I bring extensive experience in the quality automation space. My background includes roles as an iOS Developer, Go Developer, DevOps Practitioner, and IoT-Infotainment System Apps Developer. I have worked across various domains, including Banking (Business Lending, Open Banking), Automotive, and Identity (ForgeRock IDM and IAM). I’m enthusiastic about delivering high-quality results and am committed to providing exceptional service.
    Featured Skill Java
    WebAPITesting
    User Acceptance Testing
    Behavior-Driven Development
    Cucumber
    JavaScript
    Selenium WebDriver
    Rest Assured
    REST API
    Performance Testing
    Quality Assurance
    Software Testing
    OpenAI API
    ChatGPT API
    AI Implementation
  • $30 hourly
    • 5.0/5
    • (1 job)
    🌟 Full-Stack Developer & Automation Expert | Laravel, Vue.js, React, DevOps 🌟 Hello! I'm Zaharia Ștefan, a passionate and experienced full-stack developer with a deep expertise in web development, test automation, and DevOps. My mission is to bring your visions to life with high-quality, scalable, and user-friendly solutions. Let's create something amazing together! 🚀 🔧 Skills & Technologies: Web Development: Laravel, PHP, JavaScript, Vue.js, React Automation Testing: Selenium, Robot Framework DevOps: Docker, Kubernetes, CI/CD Programming Languages: Java, PHP 🔹 What I Can Do For You: Full-Stack Development: Building robust and scalable web applications from front-end to back-end. User Authentication & Management: Creating secure and efficient user login and registration systems. Data Management: Handling and displaying data with precision, including database and API integrations. Interactive Interfaces: Designing intuitive and engaging user interfaces with modern frameworks. Automated Testing: Ensuring the reliability and quality of your applications through comprehensive test automation. DevOps & Deployment: Implementing containerization and orchestration for seamless deployment and maintenance. 🛠️ Project Management Approach: I believe in a milestone-based approach to project management. This ensures clear progress tracking, focused development, and the flexibility to adapt based on feedback. It's a win-win situation, providing transparency and alignment throughout the project duration. 📈 Why Choose Me? Experience: Over [X] years of experience in full-stack development and test automation. Quality: High standards of quality and reliability in every project. Communication: Clear and consistent communication to ensure your vision is realized. Agile Methodologies: Regular sprints and feedback loops to ensure continuous improvement. 🌍 Let's Connect! Ready to bring your project to life? Let's collaborate and create something exceptional. Feel free to reach out to discuss your project needs and how I can help. Contact me today, and let's get started! ✨
    Featured Skill Java
    Kubernetes
    Docker
    React
    Vue.js
    JavaScript
    PHP
    DevOps
    Robot Framework
    Selenium
    Test Automation
    Laravel
  • $60 hourly
    • 0.0/5
    • (0 jobs)
    I’m a full-stack developer and product-focused engineer with 12 years of experience building fast, scalable, and reliable web applications. I’ve worked across startups, solo projects, and technical leadership roles. I often take full ownership of the stack and help shape product decisions alongside founders and early teams. I specialize in turning ideas into production-ready software with clean code and real-world impact. What I bring: • 12+ years of hands-on development experience • 4+ years of AI development experience • End-to-end product builds from zero to launch • Reverse engineering and complex API integrations • A focus on clarity, maintainability, and execution Tech I work with daily: TypeScript, Node.js, React, PostgreSQL, Docker, Stripe, OpenAI, REST APIs, custom integrations If you’re building something meaningful and need a developer who can deliver with speed, precision, and thoughtfulness, I’m here to help.
    Featured Skill Java
    AI Chatbot
    SQL
    AI Agent Development
    Swift
    Kotlin
    JavaScript
    TypeScript
    React Native
    React
    Web Application
    Web Development
    Android App Development
    iOS Development
    Artificial Intelligence
  • $75 hourly
    • 0.0/5
    • (0 jobs)
    Experienced Full Stack Web Developer with a passion for using technology to solve social problems. Proficient in Python Django and well-versed in development, testing, pipeline building, and devops. Accomplished in building and launching the flagship product FreddyMatch, a platform connecting volunteers and organisations with over 200 opportunities and 22k users. A key contributor to the launch of FreddyMatch Manager, a management tool for organisations. Driven and committed to continuously improving and delivering quality results.
    Featured Skill Java
    Software Design
    Scientific Computation
    Rapid Prototyping
    Critical Thinking Skills
    Minimum Viable Product
    Jade Pug
    Business Planning & Strategy
    Python
    JavaScript
    Bootstrap
    Web Development
    Django
    HTML
    CSS
  • $15 hourly
    • 0.0/5
    • (0 jobs)
    Experienced Professional in Java, SQL, Excel, and More | Native Japanese Speaker with Strong Communication Skills Hi there! Thank you for visiting my profile. Here’s why I might be the perfect fit for your project: • Extensive Professional Experience: With years of experience in Java, SQL, and Excel, I bring a high level of expertise to tasks involving data management, software development, and business operations. • Native Japanese Speaker: I am fluent in Japanese, making me an excellent choice for projects requiring seamless communication with Japanese clients or audiences. My background in sales has equipped me with the skills to connect people and build strong professional relationships. • Fluent in English: Currently based in Australia, I have no trouble handling daily conversations in English, ensuring smooth collaboration with international clients. • Additional Skills: • Video Editing: I have experience creating and editing high-quality videos to meet client needs. • SEO Writing: I have previously worked on note and blog article projects, incorporating SEO strategies to improve content visibility and engagement. I am highly adaptable, detail-oriented, and committed to delivering quality results on time. Whether it’s a technical project, content creation, or bridging the gap between Japanese and global audiences, I am ready to help your project succeed. Let’s work together to bring your ideas to life! Feel free to reach out to discuss your needs further.
    Featured Skill Java
    Japanese
  • $25 hourly
    • 0.0/5
    • (0 jobs)
    As an experienced Japanese teacher, I have conducted engaging and interactive lessons for both online and face-to-face learners, utilizing established textbooks such as Minna no Nihongo. My teaching spanned all proficiency levels, from beginner to advanced, where I developed customized lesson plans to suit individual learning needs. I focus on making lessons enjoyable and cultivating a genuine interest in Japanese language and culture, fostering an environment where students feel motivated to deepen their skills and achieve their goals. This approach has resulted in high student retention and measurable progress. Additionally, my expertise in Japanese grammar, vocabulary, and cultural nuances equips me to excel as a Japanese translator. I possess a strong command of both Japanese and English, allowing me to deliver accurate and contextually appropriate translations across various domains. My understanding of formal and informal language use, as well as idiomatic expressions, ensures precision and cultural sensitivity in all translation tasks. As an experienced web developer, I have worked on several projects to develop new systems and improve existing ones, collaborating with clients across diverse industries, including medical retail, telecommunications, and freeway management. Each project required adapting to various programming languages such as Java,C#,php,TypeScript,Javascript Angular etc, so I consistently dedicated myself to quickly learning new technologies to meet client expectations effectively. In addition to my engineering work, I create curriculum and provide training and mentorship for new team members. My training materials cover essential skills, including HTML, CSS, PHP, SQL, and Laravel, designed to equip new hires with the knowledge they need to succeed.
    Featured Skill Java
    Team Training
    Team Management
    Agile Software Development
    API
    CSS
    HTML
    Canva
    Angular
    SQL
    AWS Development
    C#
    PHP
    Web Application
    Web Development
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