Java is a versatile, object-oriented programming language that is widely used for software development across various industries. Java Developers can help clients create anything from complex web applications to automated trading bots and mobile apps. With their advanced skills and knowledge, they can turn your vision into reality, providing you with tailored solutions that align with your business goals. Here are some recent projects that our expert Java Developers made real:
- Developing custom GUIs for existing codebases
- Creating encrypted, secure crypto apps
- Designing cross-platform audio merging tools for mobile devices
- Building sophisticated trading bots for the cryptocurrency market
- Implementing open-source virtual machines in C
- Collaborating as senior developers on large-scale Android projects
- Solving server request errors for mobile applications
- Running and optimizing code from Git repositories
- Designing and implementing web services for seamless integration
Hiring Java Developers on Freelancer.com gives you access to a global pool of talented professionals who can deliver high-quality solutions tailored to your needs. Our platform makes it easy and convenient to find, hire, and collaborate with skilled Java experts from around the world. So why wait? Bring your ideas to life by posting your own project and hiring a Java Developer on Freelancer.com today!270,807レビューから、クライアントは Java Developers 4.85/5個の星で評価します。
Java Developers を採用する
To develop a android APP using Bluetooth and serial port profile in bluetooth to communicate with IOT devices Will have a login screen login authenticated via a server Will have message exchange to BT IoT device and server.
Hello, - Need an Publisher for publishing my android App on Google Play. - I have Ready -made applications(.aab.file.), but i don't have an any google play console account. I have 3 android application built in java/kotlin language and I want to upload it in your Gp Console. - 9 $ =3 Apps. - Developer access compulsory available. -I am looking for an Android Developer, you will publish an apps,you will receive all materials from is a 15-20 minutes job as i have everything ready on my you just need to upload it as soon as possible. Requirements: - Play Console Developer Account - Anydesk ID / Team Viwer / Console Access - Important Note : Every Month Rent :- 30$ When sending your proposal, please write your google play developer name.
Hello Freelancers! I'm looking for an experienced Mulesoft Architect to join me and help with a project. The ideal candidate will possess proven expertise in Mulesoft Integration and API Development, specifically design and construction of integrations, configuring data and various processes, maintaining, testing and deploying on cloud platforms, as well as cloud platform setup and administration. The successful applicant will demonstrate extensive experience in the Mulesoft technology stack, as existing Mulesoft expertise is essential for this role. If you possess the right qualifications and experience, and are excited to join on an incredible project, please get in touch! I look forward to hearing from you.
I'm looking for an experienced app developer to create a robust Android mobile application. I already know what I want the app to look like and how I want it to function. Specifically, I need the app to include search capability. The ideal candidate will be well-versed in developing Android applications and have proven experience with the platform. They should also have a strong understanding of the various features and functionality needed to ensure my app meets my requirements. In return, I'm offering a competitive rate based on the complexity of the project and the timeline we agree upon. If you've read this far, please reach out and let me know your experience and availability. I'd be happy to share more details on the project and answer any additional questions y...
I am looking to create a chatbot to represent a person for conversation in whatsapp. The chatbot should use an informal conversational language to allow users to have a natural conversation. It should provide an intuitive and interactive experience. By leveraging AI technology, it should be able to understand requests and respond accordingly. This chatbot is strictly for personal use, not business use.
We need to have transcripts of phone conversations summarized. The application should login to the website that contains the transcripts and summarize new phone calls posted on the site once a day using a provided OpenAI API prompt. The call summaries should be sent in one batch to a provided email address. The website with the transcripts has a relatively simple interface - posting new transcripts in a list chronologically. Features: -The application should summarize all new transcripts and send those summaries in one batch each day to a predefined email address. -The application should summarize all new transcripts on a watchlist (also clearly defined on the website) in one batch each day to a predefined email address. -The ability to edit the ChatGPT prompt driving the summaries throug...
I want Strong Java Developer for Developing my debugging Skills
Hello Freelancer, Java SpringBoot Developer who can give 9 Hours in a Day
My project is to create an informational mobile app using Java programming language that will be available on the Google Play store. I have a clear idea of what I want the app to look like, however, I do not yet have sketches or designs available. I am looking for an experienced developer who can use their creative abilities to produce an app that meets my specifications. The app needs to be user-friendly, fast loading, and easy to navigate. It should also be appealing to the eye so it can attract users. I am looking for someone who is knowledgeable in the Java programming language and the capabilities of the Google Play store. If you think you have the expertise to help me create a successful, attractive, and functional mobile app, please contact me.
Hello, First of all, I need a dating app that will run on the Android platform. I want a completely open source dating app with admin panel. I can also buy Dating apps that you have developed and want to sell. My primary preference is to purchase existing projects and develop them. Creating a new project is both more costly and takes a lot of time. So please make the project sale your priority. I like the features of these two applications and would like to have them in my project. Developers who have developed dating apps before, please bid.
I am looking for an experienced bioinformatics specialist to help me with a project. I need someone who is adept in gene ontology, docking, and simulations, as these are all related to my project needs. While I don't necessarily require a minimum number of years of experience in these areas, any level of experience is appreciated and encouraged. Additionally, I am open to working with specialists from any geographic location, as I am open to the possibility of fully remote work. This project will require the candidate to have a keen understanding of biology, computational biochemistry, and programming techniques. If you think you have the skills required and are up for the challenge, please reach out soon.
Tengo una página web que corre sobre glassfish 4 en un servidor ubuntu 18.04 Requiero agregar un certificado SSL para hacer seguro el sitio web. Si fuera posible usando certbot para generar los certificados gratuitos de forma automática.
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Looking javafx developer have good experience in Java fx UI development and API collection will be provided. Only need to integrate the API and make the function working.
Senior Apigee Developer Years of experience: 3-5 years Education: BS in Computer Science, IT, or a related field. Requirements: • Advanced knowledge of Apigee API Gateway. • Familiar with GCP. • Familiar with Microservices design, Familiarity with Java Spring Boot or similar Java framework. Ability to troubleshoot problems at the component level. • Excellent verbal and communication skills. Ability to work in a team. Perks and Benefits : Work From Home & Office 5 Days/Week Day Shift Preference: Immediate Joiners Job Type: Full-Time Contract-based Job Only apply if you ok with this 1. Should have 3-5 years of experience 2. pay will be based on experience
I'm looking to hire an experienced software architect to help design and build a cutting-edge customer relationship management (CRM) system. I have specific requirements for the software architecture, the customer-facing interfaces, and the database integration. For the software architecture, I'm looking for someone primarily experienced in building systems using microservices. For the customer-facing interfaces, I'm looking for a cloud interface. The goal is to build out a modern, secure, and reliable CRM system that I can offer to my clients. If you think you're up to the challenge and meet the requirements, please consider applying for this project. I'm looking forward to hearing from you and discussing the details further!
Hello, I'm looking for an experienced Java coder to help me update an existing software and package it with an installer. I need someone who is well-versed in Java and has experience working on software updates. The goal is to modify the existing code and incorporate revisions to bring my software up to date. I also want to add another function from opensource java software that can be found at
Hello, I am a behavioral science researcher and need a computer programmer to work on a computer task I call the AGRAF. This is a task that works as a game where the research subject must choose between two images (selecting either a triangle or a star on the computer screen), and each image is associated with a different delay before points are earned. My plans are to administer the AGRAF online through a college website. What I need. 1. The AGRAF is written in Java, but I now need it written in PYTHON 2. The AGRAF has a menu which must now be eliminated. So, this means that default features must be put in place of the menu, which I will give to the person I hire. 3. Because the AGRAF will be administered online, I need new instructions written so research subjects know how to complete...
Hello, We are hiring a minecraft developer who can do some customization on my new minecraft server. I am looking two server with one ip address. Here below server requirements. First server " name not given yet".. This server is most important. It will be in survival mode. This server requires customizations like. - spawn at middle - adding roads arround the whole server. These roads will have rail line too. This is most important customization needed to be done so its looks professional. - Besides roads there will be plot. Lets say each player can build 100x100. And they can whitelist 4 players per plot . We will need in this server for 200 plot each size 100x100 except roads. Roads will be used for travel purpose. This server will be now now pvp off, keep inventory on (...
Objective: The game implemented from Assignment #1 is improved with a menu, settings, statistics kept in a database, themes, animations, and asynchronous behaviour (timer-based actions and notifications). While some of the timer-based actions and notifications employed in this application generally might annoy a user, they are included in the assignment for the purposes of learning how to implement these features. Specifications: Track the win/loss statistics in an SQLite database Keep track of the timestamp every game was played and the result of the game in a table. You may consider storing the integer value of seconds from epoch for the timestamp, e.g.: (() / 1000) The statistics can be viewed and reset via a new activity launched through the menu Implement a menu for the Action...
Online betting app on Android like rummy+5 games
We are building a trading application for a client and looking to add another Java SpringBoot developer to our team. The candidate is free to chose their working days and times but we expect them to put in at least 16 hours per week to meet our project milestones. We prefer someone based in India as the team and client are in India. Required skills: 3+ years experience in Java SpringBoot, Angular Preferred skills: AWS, Knowledge of stocks and derivatives, Prior experience in startups
Anyone who is capable of doing this task within 3 hours can bid.
Queremos meter una actualización de funciones a un programa de Escritorio programado en Java e insertar tambien funcionalidad online para que los datos que recoge los mande directamente a la nube en vez de en local como hace actualmente. Es un programa de Cronometraje deportivo que trabaja con la API de dispositivos Impinj.
I need to implement whatsapp on my business.
I require a freelancer, who owns any of the Zebra devices (TCX, MCX) and can test the scenarios and deployment to be working before delivering. We have a fleet of Zebra MC3300 handheld scanners. We have our own warehouse picking Android apps to be installed on them. We also wish to use Enterprise Home Screen to limit access to apps by warehouse workers. And lastly, we wish to update Android OS + StageNow app to a certain version. For this, we need to create StageNow scenarios for easy and mass deployment. We need someone who did this before and is experienced with StageNow deployment. * We have scanners purchased at various times, so they are running Android 8, 9, and 10. * The scanners are running various MXMF versions: / 184.108.40.206 / 220.127.116.11 We wish the output to be several individual ...
The project rules are: ● The goal and details of the competition are described on the Kaggle competition page itself. In summary, it is about designing an algorithm that predicts the 1000 missing links for a social network of members of a Spanish university.
I need to implementation a program in Java. You may use Swing or AWT, whichever you prefer. Provide comments in your code to show the patterns design must correctly apply the controller and command patterns AND the implementation must also correctly implement these patterns. A partially correct implementation is considered incorrect. I will send you in chat, its very basic and small task max budget 10$
Tengo un problema con una aplicación que estoy desarrollando con Android Studio y trato de realizar una conexión vía Bluetooth, pero he hecho lo que sale en el manual de Android y al simular en un móvil real no me pregunta si doy permisos para la conexión por Bluetooth. Lo deniega directamente. En un emulador virtual sí funciona Necesito un Activity que haga la conexión Bluetooth y funcione
I'm looking for a talented developer to build a School Paying System. This system will not require integration with any external systems. It's expected launch date is 3 months from now. The School Paying System will provide an easy way for student to pay at the canteen. Its not for a single school its for all schools at the city. It will also he used out of the school so at libraries, study rooms, coffee shops and stores thats we give permission to use our technology The system will be built using the latest industry standards and the highest quality coding practices. All the data will be securely stored and will use robust encryption to ensure the safety and privacy of the school's information. And for faster paying solutions, every school going to have its own small serv...
This is POC for the client. I just want direct dedicated 10 hours of the developer. There is existing project in andriod with running code. You need to use the same functionality and develop a simple logic on the same by storing data in local. A fix price work as the project file is alredy availble. once this POC is approved, want to go for more features with additional cost price.
We need an Android app for time in and time our for daily attendance . but restricted to log in from allowable gps coordinates. Send the data to firebase and downoad to local server and send the logs through text messages also
I am in need of a talented Python Selenium developer who can complete a project within 1-2 weeks. This project will require the integration of an pass the recaptcha using python-capmonster. Expert Python programming skills are essential for the successful completion of this project. The successful candidate will be expected to provide source code and documentation upon completion.
I would like to get a python based software developed to auto login and mimic orders from one Zerodha account to another account. Basically the software will monitor the primary account continuously and whatever trades get triggered in the primary account, it will copy those into secondary and all attached accounts. All the Auto Login can be done through selenium and Data like username/password/TOTP can be taken from excel sheet per user . Also a separate same Python based Dashboard to monitor all account activity. I have attached the file needed to get basic idea.
Teach me software basis, terminologies and make me understand enough to manage team. PHP and JAVA
Producto minimo viable de un aplicacio de delivery tipo uber, con pequeños cambios
I am looking for a web-based chatting application that is coded in Any language and has messaging and voice calling features. I want the application to be secure and have a user database. Required features • A user can send a message to friends, and message can be text, picture, or short video. • A user can receive a message from a friend. • A user can search its chat history (only consider text). • All chat histories are stored in the cloud server. • We do not want the cloud server to learn anything about any chat history. • Ideally, we do not want the cloud server to learn anything about a user, e.g., communication pattern and connections with other users. Deliverables Three items need to be submitted, the source code, the document, and the presentation sl...
Android işletim sistemli kiosk uygulaması yapılmasını istiyorum. Kaynak koduyla birlikte Daha sonradan değişiklikler ve ekleme yapabilmem için gerekli talimatları içeren bir çalışma istiyorum. Sadece birkaç sayfadan oluşuyor. Tasarım için örnek göndereceğim. Anasayfada sol bölümde resimli kategoriler ve kalan bölüm boyunca ürünlerin yer aldığı bir sayfa. Ürünlerin altında + butonu olacak. + ya basıldığında altında 1 ve - işareti çıkacak. Ürüne tıklandığında ürün resmi genişleyecek ve ürün ayrıntıları yazacak sepetle ekle ve +,- pozisyonu burada da olacak. Köşede sepet simgesine tıklandığında sepete eklenenler çıkacak. Sepetten ürün ç...
The project includes creating UI for a form and write service/DAO layers. UI code already exists in other forms, code can be copied/reused. Once the data is entered in the form - Save and Cancel buttons functionality implementation. I will walk you through the tables/.js files/controllers etc. Mockups are available for the form. This is only one form.
I am looking for an AWS Expert with an excellent combination of Java skills who can take on a challenging but exciting project. The primary task is to maintain our existing AWS infrastructure and to understand how it works and how to properly use it. We have a plan in place and source code is not in place yet, however, this is a new project and we need an Expert with the right qualifications to help complete it. This person should understand the complexities of AWS and have highly developed Java skills and experience to handle the tasks required. We are searching for an individual who is confident, reliable and capable of working through challenges while also providing timely solutions. If you have the necessary qualifications and experience, please apply today and together we can make thi...
Project to develop backend of a web application using Java. Developing Business logic, writing unit tests, integration tests Preferred candidate to have 4+ years of Java experience. Must be proficient in back-end Java development and React for frontend. We expect the project spanning over 3-6 months. Compensation can be discussed once you understand the project requirement in our first meeting. Key Responsibilities: 1. Design and develop high-performance and scalable applications using Java. 2. Collaborate with cross-functional teams to implement new features. 3. Optimize application performance by resolving bottlenecks. 4. Perform unit testing, code reviews to ensure delivery of high-quality software. Requirements: --Full time free lancer --10 years of Java experience -- India location...
We are atempting to create a simple comunication simulator between a student pilot and a teacher. The student will receive instructions from the teacher, and will need to enter the request onto the walkie talkie. The teacher will need the ability to verify that the student has enter the information correctly. At all times there needs to be communcation(voice) between the parties logged in. I have attached a simple idea of what is needed.
I need a program tht able to extract print job data. Eg. My POS system will send a print job to receipt printer. Before print receipt, the program should be able to extract the data from print job. Eg prod sku and description
Need installation of free web server panel on linux GCP server Need to install cassandra database
I'm looking for someone to help me with a programming language Java project. The purpose of the project is to solve a question, though I'm not sure which version of Java should be used. The type of file I need is a tar file. Therefore, I'm looking for an experienced programmer who can use Java to generate a tar file to provide a solution to this project. Please let me know if you are able to help with this. Thanks!
app development ...........................................................................
Android App requirements Epub reader with general features as below 1. Scan and load available epub files in mobile. 2. Select & Copy , share text options 3. Change font size option 4. Epub font will be devnagari 5. Few Default links to download epub files from Google drive 6. Then open to read. This will resume from last accessed page. Resume from last accessed page. (Book wise resume history , if possible) 7. search text within book option 8. Menu (& action) : A. Contents : show contents of book B. Search : Search text within book and show search results and open that searched text page. 9. Category : 1. Create category and 2. add/remove books to/from category. 3. Onselecting specific category, show books in that category. 10. Download Books : 1. Open static pag...
Hello, I'm looking for a freelancer to help me understand a web application code written with Angular and Java. Specifically, I'm looking for a freelancer who can do a full code review in order to help me gain an understanding of the existing code. My team has an advanced level of experience with Angular and Java, so the freelancer needs to have an equally advanced level of knowledge. So if you think you've got the expertise necessary to give me the insights I need to understand this piece of code, get in touch! The source of the project is on github , it is a open source code application. You can check the code then quote your proposal. Would request to please go through the code and then only bid
As an Android app developer, I'm looking for someone to provide ethical hacking and penetration testing services for one specific application. The successful freelance will have a solid track record in penetration testing and demonstrate experience in this field.