Best Java Jobs & Projects

We are seeking a skilled back end developer to join our team and assist in the completion of our upcoming website. The ideal candidate will have strong experience in developing and maintaining server-side applications and databases. This position requires a solid understanding of programming languages such as Java, Python, or PHP, as well as familiarity with frameworks like Django or Laravel. The developer will be responsible for implementing new features, troubleshooting issues, and optimizing site performance. Attention to detail and the ability to work collaboratively in a team environment are essential. If you are a proactive problem-solver with a passion for creating efficient and scalable web applications, we would love to hear from you.

We are looking for an experienced developer to build a complex photo album program. The program should have advanced features such as image editing, filtering, and categorization. The main goal is to create a user-friendly interface that allows users to easily organize and manage their photo collections. The developer should have a strong understanding of software development principles and experience in building similar applications. This project requires a creative problem-solver with excellent attention to detail.
Skills needed:
- Proficiency in programming languages such as Java or Python
- Experience with image processing libraries like OpenCV
- Knowledge of database management systems
- Familiarity with UI/UX design principles

Polite Note: overcharging or unrealistic time frames will not be tolerated. I have 20 years experience in this field, i am very aware the price and timeframe this job should take.

Please send me a message for the full brief.

modify a pre-purchased front-end template to align with our supplied artwork, including basic style sheet changes. The project involves integrating this front-end with a pre-purchased back-end and customizing it to match. Expertise in React and Java for an admin panel is required. Additionally, you will need to integrate three API functions and set up and test the application on our server.

We are looking for a skilled software developer to join our team and assist in the development of a mobile software project. The ideal candidate should have a strong background in mobile application development and be proficient in both iOS and Android platforms. The project involves designing and implementing innovative features, troubleshooting and resolving software defects, and collaborating with cross-functional teams to ensure the successful delivery of the project.

Required skills:
- Mobile application development (iOS and Android)
- Proficiency in programming languages such as Swift, Java, or Kotlin
- Experience with mobile UI/UX design
- Strong problem-solving and debugging skills

Size: Medium
Duration: 3 to 6 months
Expertise: Intermediate

I am looking for a skilled developer who can help me cloak the PayPal payment gateway on Checkout Champ. The main objective of this project is to avoid detection, ensuring smooth processing of transactions without raising any red flags.

Key requirements and tasks include:

- **Cloaking PayPal Gateway**: The main task is to cloak the PayPal payment gateway, allowing transactions to be processed seamlessly without detection by any third-party systems. The cloaking process should be secure and reliable.

- **Integration with Checkout Champ**: The cloaked PayPal gateway needs to be integrated with my Checkout Champ platform. This means that the transactions processed through the Checkout Champ platform should pass through the cloaked gateway.


Requirements:

- Proven experience with payment gateway integrations, particularly with PayPal.
- Strong understanding of cloaking mechanisms and techniques to avoid detection.
- Proficiency in working with Checkout Champ or similar platforms.

If you're confident in your ability to fulfil these requirements, I look forward to hearing from you.

Skills: PHP, Java, JavaScript, Software Architecture, PayPal API

I need a dedicated application for Android devices to efficiently handle the management of our tooling and equipment via a barcode system. It should provide:

- Real-Time Updates: The ability to immediately report on the status of tools and equipment, including whether they are in or out of the system.
- User Tracking: The app should document who has taken possession of specific tooling, as well as when it was checked out and returned.

Reporting should be accessible within the app itself - I don't require a web dashboard currently. This is a crucial tool for our business, so reliability and user-friendly design are paramount.

The ideal freelancer would have ample experience in:
- Android App Development
- Barcode System Integration
- Real-Time Data Handling
- User Management Systems

Your bid should reflect both the technical requirements and the necessity of a clean, intuitive user interface.

Skills: PHP, Java, Mobile App Development, Android, Software Architecture

We are seeking a talented Full Stack Developer to join our team. As a Full Stack Developer, you will be responsible for designing and implementing user interfaces for our web applications. Your main focus will be on developing high-quality code using HTML, CSS, and JavaScript, Java, React. You should have a strong understanding of UI/UX principles and be able to translate design concepts into code. The ideal candidate should be proficient in front end frameworks such as React or Angular. Attention to detail and a passion for creating visually appealing and user-friendly interfaces are essential.

Hi

I want to develop a bot that monitor this online store https://www.dzrt.com/ and link it with telegram channel.

1. Monitor all the product availability by check if any product in stock so it should send a notification in telegram chat as following;

“Product photo”
Product “Name” is available now
Product Link
Login page link
Basket Page link
Payment page link

How is telegram work?
I will make it as users subscription that the i will give access to subscribed users to receive this notification

They can choose the preferred product and only receive notification for it or they may select all product to receive it all.

………….

Another Bot with also another subscription

To automatically order user preferred product when become in stock. It will 5 pieces of the product. The website need log in process so the user when he subscribe, he should provide his login data then the bot will log in automatically and order to him. The payment will be by apple pay service that already available in the store

Skills: PHP, Java, JavaScript, Python, Web Scraping

Position Overview:
We are seeking a highly skilled and motivated Back-End Developer to join our team. The ideal candidate will be responsible for developing and maintaining the server-side logic, ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your colleagues into the application. A commitment to collaborative problem-solving, sophisticated design, and quality product is essential.

Key Responsibilities:

• Develop and maintain server-side logic, ensuring high performance and responsiveness.
• Integrate front-end elements developed by front-end developers into the application.
• Design and implement APIs to support front-end functionality.
• Optimize applications for maximum speed and scalability.
• Collaborate with front-end developers to ensure seamless integration.
• Conduct thorough testing and debugging of applications to ensure optimal performance.
• Stay up-to-date with the latest industry trends, technologies, and best practices.
• Participate in code reviews and provide constructive feedback to team members.
• Continuously improve and update the platform based on user feedback and technological advancements.

Qualifications:

• Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent experience).
• Proven experience as a Back-End Developer with a strong portfolio of completed projects.
• Proficiency in server-side languages such as Node.js, Python, Ruby, Java, or PHP.
• Experience with database management systems (e.g., MySQL, PostgreSQL, MongoDB).
• Strong understanding of RESTful APIs and web services.
• Familiarity with version control systems, such as Git.
• Strong problem-solving skills and attention to detail.
• Excellent communication and teamwork skills.
• Ability to work independently and manage multiple tasks simultaneously.

Preferred Qualifications:

• Experience with cloud services (e.g., AWS, Google Cloud, Azure).
• Familiarity with front-end technologies (HTML, CSS, JavaScript) to understand the needs of front-end development.
• Knowledge of containerization and orchestration tools (e.g., Docker, Kubernetes).
• Experience with automated testing frameworks and tools.

We are seeking a skilled Java Developer with a strong understanding of REST API development, Spring Boot, and continuous integration/continuous deployment (CI/CD) practices. The ideal candidate will also have experience with AWS deployment.

Key Responsibilities:

Design, develop, and maintain high-quality Java applications.

Create and manage RESTful APIs using Spring Boot.

Implement CI/CD pipelines to automate testing, integration, and deployment processes.

Deploy applications on AWS and manage AWS services.

Troubleshoot and resolve application issues and bugs.

Ensure code quality and maintainability by writing clean, efficient, and well-documented code.

We are seeking an experienced Android developer with a strong background in Kotlin and Java to join our team as a Subject Matter Expert (SME). Your primary responsibility will be to review, refine, and enhance technical questions related to Android development. Your expertise will help ensure the accuracy, clarity, and relevance of our content, catering to a global audience of developers and learners.

Key Responsibilities:

1. Review and validate technical questions related to Android development using Kotlin and Java.
2. Ensure questions are clear, concise, and free from ambiguity.
3. Provide detailed feedback and suggestions for improving questions.
4. Ensure content aligns with industry standards and best practices.
5. Collaborate with our content creation team to maintain a high standard of quality.

Requirements:

1. Extensive experience in Android development using Kotlin and Java.
2. Strong understanding of Android architecture components, UI/UX design principles, and best coding practices.
3. Previous experience in reviewing or creating technical content, such as interview questions, coding challenges, or educational materials.
4. Excellent attention to detail and ability to provide constructive feedback.
5. Strong communication skills and the ability to work independently.

Preferred Qualifications:

1. Experience with modern Android development tools and libraries.
2. Familiarity with Agile development methodologies.
3. Prior experience in a teaching, mentoring, or content review role.
4. Contributions to open-source projects or published technical articles/blogs.

What We Offer:

1. Competitive compensation based on experience.
2. Flexible working hours and the ability to work remotely.
3. Opportunity to shape and influence educational content for developers worldwide.
4. Collaborative and supportive work environment.

If you are passionate about Android development and enjoy helping others learn and grow, we would love to hear from you. Please submit your resume and a brief cover letter highlighting your relevant experience and why you are interested in this role.

I'm looking to create a color prediction website similar to https://bdgwin111.com/. The functionality will be centered around a user prediction game where users will be randomly guessing colors.

Key Requirements:
- Backend development using Python with AWS Lambda
- Frontend development using React.js
- Implementation of email and password user authentication

Ideal Skills:
- Proficiency in Python and React.js
- Experience with AWS microservices
- Strong understanding of user authentication systems
- Previous work on interactive game development would be a plus.

Skills: Java, JavaScript, Python, HTML5, Node.js

Update function for password not working and wont auto show in website due to some localstorage issues, need help with state management without use of localstorage and without use of redux of any other tools

I need a Java and Angular expert to build a comprehensive internal business tool for my company. This tool should primarily focus on:

- Data Management: The tool should allow for efficient handling and organization of our internal data.
- Reporting Dashboard: A user-friendly dashboard that provides real-time reporting and analytics.
- User Authentication: Implement a secure and reliable user authentication system to ensure data security.

Additionally, the tool needs to seamlessly integrate with our existing systems:
- CRM: The tool should sync with our Customer Relationship Management software.
- ERP: It should also work in tandem with our Enterprise Resource Planning software.
- Other Internal Tools: Any other tools that we currently use should also be considered for integration.

Ideal candidates for this project should have significant experience in Java and Angular, with a strong background in developing internal business tools. Previous work involving data management systems and reporting dashboards will be highly regarded. Familiarity with CRM and ERP systems is a plus.

Skills: PHP, Java, JavaScript, J2EE, AngularJS

Cloud Engineer. Main duties is to leverage EKS for java apps.
6 month contract. Renewable.
remote
PST hours

We are looking for a skilled Full Stack Developer to join our team for an exciting project. As a Full Stack Developer, you will be responsible for both the frontend and backend development. You should have a strong understanding of web technologies and be proficient in programming languages such as HTML, CSS, JavaScript, and Python. The ideal candidate should be able to work independently and collaborate with a team to deliver high-quality solutions. If you are a problem-solver with a passion for coding, this opportunity is perfect for you!

Skills required:
- Frontend development (HTML, CSS, JavaScript)
- Backend development (Python, Ruby, Java)
- Database management (MySQL, MongoDB)
- Web frameworks (React, Angular, Django)
- Version control (Git)
- Problem-solving and debugging

This is a medium-sized project with an estimated duration of 3 to 6 months. We are looking for an intermediate level developer who can hit the ground running and contribute to the project from day one.

Hey Hi I want an working demo of CyberARK conjur plugin with a spring boot application. Here I want to present how a conjur can work well versed with spring boot application.

I also want to have a documentation for this. I have all the needed materials and document to follow.

I will be requiring a detailed documentation as well to proceed further on this so that I can setup on my side.

We are seeking a skilled Mobile App Developer who will be responsible for developing and maintaining high-quality mobile applications.
The ideal candidate will have a strong understanding of the app development platform, a passion for mobile technologies, and a track record of delivering robust and user-friendly applications.


Key Responsibilities:
Design, develop, and maintain mobile applications for iOS and/or Android platforms.
Collaborate with cross-functional teams to define, design, and ship new features.
Work on bug fixing and improving application performance.
Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
Ensure the best possible performance, quality, and responsiveness of the application.
Participate in code reviews to maintain code quality and share knowledge with team members.


Requirements:

Proven experience as a Mobile App Developer.
Strong knowledge of Swift/Objective-C (for iOS) or Java/Kotlin (for Android).
Experience with cross-platform development frameworks like React Native or Flutter is a plus.
Familiarity with RESTful APIs to connect mobile applications to back-end services.
Knowledge of UI/UX standards and guidelines.
Understanding of Agile development methodologies.
Excellent problem-solving skills and attention to detail.
Strong communication and teamwork abilities.

I need assistance with the process of publishing my Android app on the Google Play Store. The ideal freelancer for this job should have significant experience in this field.

Key requirements include:
- Understanding of Google Play Store guidelines and submission process.
- Experience in optimizing apps for a successful release.

Your application should highlight your experience in this field, and how you can help me through the process.

Skills: Java, Internet Marketing, Mobile App Development, Android, Google App Engine

My Java services, built using Maven, are experiencing an issue with Eureka Server.

- The issue is causing my services to deregister intermittently, disrupting the client-server communication.
- I need a seasoned professional with experience in Java, Maven, and Eureka Server.
- Your task will be to troubleshoot and resolve the deregistration issue.

Ideal Skills:
- Proficiency in Java
- Experience in Maven
- Strong understanding of Eureka Server
- Troubleshooting and debugging skills
- Good communication to keep me updated on progress and any challenges.


Logs are as shown below
DS: Registry: expired lease for AUTO-SERVICE/45-79-121-83.ip.linodeusercontent.com:AUTO-SERVICE:6000
2024-07-26T12:59:24.030+05:30 INFO 4182441 --- [a-EvictionTimer] c.n.e.registry.AbstractInstanceRegistry : Cancelled instance AUTO-SERVICE/45-79-121-83.ip.linodeusercontent.com:AUTO-SERVICE:6000 (replication=false)

Skills: PHP, Java, Linux, J2EE, Software Architecture

INDIVIDUALS ONLY PLEASE... NO FIRMS WILL BE ACCEPTED. WE REQUIRE A DIRECT CONTRACTUAL RELATIONSHIP WITH THE CONSULTANT WITHOUT ANY INTERMEDIARY FIRMS (OTHER THAN UPWORK ITSELF).

I'm looking for a Java Trainer who has intermediate knowledge and can teach for a period of two months in Chennai. The training will be conducted in-person.

Key Requirements:
* The trainer should have proficiency in teaching the following Java topics - Object-Oriented Programming, Data Structures and core java.
* You should be able to handle queries and explain concepts clearly.
* Prior teaching or training experience will be a bonus.

Ideal Skills:
* Comprehensive knowledge of Java
* Proficient in Object-Oriented Programming, Data Structures
* Ability to teach in-person in Chennai
* Good communication skills
* Experience in teaching/training will be preferred.

Skills: Java, Python

we are passionate about innovation and dedicated to creating cutting-edge mobile applications that make a difference. Our team is dynamic, collaborative, and driven by a shared goal of delivering exceptional user experiences. As we continue to grow, we are looking for a talented and motivated Mobile App Developer to join our team.

Job Description:
We are seeking a skilled Mobile App Developer who will be responsible for developing and maintaining high-quality mobile applications. The ideal candidate will have a strong understanding of the app development platform, a passion for mobile technologies, and a track record of delivering robust and user-friendly applications.

Key Responsibilities:
Design, develop, and maintain mobile applications for iOS and/or Android platforms.
Collaborate with cross-functional teams to define, design, and ship new features.
Work on bug fixing and improving application performance.
Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
Ensure the best possible performance, quality, and responsiveness of the application.
Participate in code reviews to maintain code quality and share knowledge with team members.
Requirements:
Proven experience as a Mobile App Developer.
Strong knowledge of Swift/Objective-C (for iOS) or Java/Kotlin (for Android).
Experience with cross-platform development frameworks like React Native or Flutter is a plus.
Familiarity with RESTful APIs to connect mobile applications to back-end services.
Knowledge of UI/UX standards and guidelines.
Understanding of Agile development methodologies.
Excellent problem-solving skills and attention to detail.
Strong communication and teamwork abilities.
Preferred Qualifications:
Bachelor’s degree in Computer Science, Engineering, or a related field.
Experience with mobile app testing and debugging.
Knowledge of mobile security best practices.
Portfolio of released applications on the App Store or the Android market.

I'm looking for a skilled Android developer to implement a long press button functionality in my existing Android app. The long press should trigger an options menu. The specific content of the options menu will be discussed but it should be designed to accommodate future options, such as "Record audio", "Access settings", and "Share content".

Additionally, I need audio from the app's recordings to be transcribed. This requires:
- Expertise in Android app development
- Familiarity with audio transcription services/APIs
- Ability to design a flexible options menu
- Excellent communication skills for discussing future options

Skills: Java, Mobile App Development, Android, Kotlin

I'm looking to build an Android investment app. This app will facilitate investments with a guaranteed 10% return in one month.

Key Features:
- User Authentication: Secure login for every user to ensure safety and privacy.
- Investment Tracking: Users should be able to track their investments in real time.
- Reporting and Analytics: The app should provide comprehensive reports and analytics on investment performance.

Ideal Skills:
- Proficient in Android app development.
- Previous experience in creating investment apps.
- Knowledge of implementing secure user authentication systems.
- Capable of integrating real-time investment tracking.
- Experience in developing reporting and analytics features.

Skills: Java, Mobile App Development, Android, Software Architecture, Software Testing

i just need someoneto help with a java task. see the attached file.

I'm in need of a proficient backend and API developer who can facilitate the transfer of structured text data. The data will be sourced from Google Sheets.

Key Requirements:
- Extensive experience in backend and API development.
- Proficient in handling structured text data.
- Familiarity with Google Sheets and its integration for data transfer.
- Ability to develop a seamless, efficient data transfer system.

Your expertise will ensure a smooth and reliable backend and API system for my text data needs.

Skills: PHP, Java, JavaScript, Software Architecture, MySQL

We are urgently seeking an experienced API expert to start working immediately. Our current developer had to step away from the project due to personal issues in his home, leaving the work partially completed. The main task is to connect our order form here, https://malmomaids.se/order/#form to the API provided by Timewave.se. You will continue from where the previous developer left off, and we have the API documentation detailing what has been done so far.

Responsibilities:

- Review and continue the API integration work done so far
- Connect and integrate the order form with the TimeWave API


Skills Required:

- Strong knowledge of API development and integration
- Experience with various API protocols (REST, SOAP, GraphQL)
- Proficiency in programming languages such as Java, Python, PHP, or JavaScript
- Familiarity with API security and authentication mechanisms (e.g., OAuth)
- Good understanding of data formats (JSON, XML)
- Experience with form data handling and validation
- Excellent problem-solving and debugging skills


Meeting and Availability:

If selected, we will have an initial meeting to discuss project details right-away.
If it's a match, you can start working this Sunday, focusing on the integration and noting any questions or issues.
A crucial meeting with TimeWave is scheduled for Monday at 1 PM Swedish time with me so that you can ask your frustrations and questions to him.

The TimeWave developer will only be available on Monday before going on vacation, so it's important to address all your questions and concerns during this meeting. Afterward, you can continue the work independently.
If you are a skilled API developer with the necessary experience and can quickly pick up and continue existing work, please apply and be ready to demonstrate your expertise. This is an urgent requirement, and we need someone who can deliver results quickly and efficiently.

I'm seeking science graduates in Bangalore for freelance projects. After training on our specific needs, you will execute tasks primarily related to robotics, coding, design and animation.

Ideal candidates should:
- Specialize in robotics, coding, design & animation
- Be proficient in Python, Java, C++
- Have a passion for hands-on project execution
- Be open to learning and adapting to new challenges

Skills: C Programming, Java, Python, Electronics, Arduino

I wish to hire a skilled programmer to develop two web applications, one using Python and another in Java, both with an original and creative design aesthetic. The Python project should be a simple data visualization tool that displays real-time statistical trends in a visually appealing manner. Core Python libraries like Pandas, Matplotlib and Seaborn should be utilized to fetch data from web APIs or databases and generate informative graphs, charts or interactive dashboards. Creativity is encouraged in designing the user interface and experience.

For the Java application, I envision an educational game or simulation. Key Java technologies like JavaFX, Java Swing or a game library could feature. The application should gamify a complex process or concept to aid learning in an amusing way. Advanced OOP principles and design patterns may come into play for a polished final product. Both projects require clean, well-structured and documented code per industry best practices. Source versioning on Git is expected too.

Ideally, the developer would have at least 2-3 years experience building full-stack web or GUI applications in Python and Java. A portfolio highlighting past creative works would be valuable. The developer should be comfortable working independently with occasional guidance from myself. Passion for solving problems through coding in novel, user-friendly designs is essential. Please share details of your