Back end java jobs

Filter

My recent searches
Filter by:
Budget
to
to
to
Type
Skills
Languages
    Job State
    2,000 back end java jobs found, pricing in USD

    ...make integration to my website with below detail. reservation system 1. hourly base reservation as we always work at night, today as ours is starting from 5pm until 4am next morning 2. duration (how many hours) and number of people per reservation when request reservation 3. able to post only limited rooms to online (we will make availability with only 3 salas out of 7 salas on online) 4. back end, admin has no limit to post reservation even out of open hours 5. Admin (Backend) able to move reservation hour or reduced / extend duration 6. clients can't change reservation after confirmed or can't cancel 7. reservation status showing either by color or text (sala unassigned/arrived/left) 8. able to work with stripe (payment method : card / bank transfer) p...

    $210 (Avg Bid)
    $210 Avg Bid
    108 bids

    15-20 vertical video with the following points in the video. Save $1000 on our Kelly Sofa Set - Get the 3&2 Seater for only $1090! Enjoy cozy moments with: Comfortable seats made with quality foam High back cushions Pillow top armrests Available in 4 colours Shop in store or online at First in Furniture - 6 Onslow Place Joondalup.

    $33 (Avg Bid)
    $33 Avg Bid
    1 bids

    Looking for an experienced Ruby on Rails back-end developer specialized in database management. The focus is to construct a medicine distribution system with a smooth, efficient process. - Key Requirements: * Extensive back-end development experience * Strong database management skills * Proven track record in Ruby on Rails

    $8 / hr (Avg Bid)
    $8 / hr Avg Bid
    12 bids

    ...software programmer who is proficient in Python, Java, and C++ to develop a small-scale software program primarily aimed at automating a specific task. The task itself is relatively simple, but the automation of it is critical to increase efficiency. Key aspects of the project: - The software program must be designed to automate a specific task. It's crucial that the programmer fully understands the task at hand to ensure a seamless integration of automation. - The scope of the project is small-scale, so the focus is on developing a functional, efficient automation solution. - Proficiency in Python, Java, and C++ is non-negotiable. The software is expected to be developed using these languages. Ideal skills and experience: - Proficiency in Python, Java, and...

    $107 (Avg Bid)
    $107 Avg Bid
    34 bids

    I'm looking for a professional who can make a .jar file in Java 17 for me. It is intended to be a software product which I want to package and distribute. Here are the specifics: - Purpose: The main goal of this project is to create a .jar file that is user-friendly and easy to use for anyone who downloads it. - Platform: The .jar file should be compatible specifically with Windows operating systems. It should be tested and guaranteed to run smoothly on those systems. You should have: - Proficient in Java 17 and Eclipse. - Prior experience in creating .jar files for software products. - A good understanding of user experience and interface design to ensure the .jar file's usability. I'm open to suggestions on how to improve this project. Your creativity and...

    $23 (Avg Bid)
    $23 Avg Bid
    14 bids

    Hi Stuart! I hope all is well! Long time since we last spoke! Need to create another clinic or AWS instance of software you had developed for me a few years back. Hoping that you are available for this project! Thanks Stuart!

    $183 (Avg Bid)
    $183 Avg Bid
    1 bids

    Good evening, I need help with a Python assignment and I also need programming tutorials in java, Python, mvc, php, Javascript, mysql, jQuery, html, css, asp.net, c#. The tutorials would be in Spanish. I need them as soon as possible.

    $17 / hr (Avg Bid)
    $17 / hr Avg Bid
    34 bids

    I am looking for an expert developer who possesses an in-depth understanding of Java multi-threading, specifically the Executor Service method. The main task involves partitioning a loop in a program I'm currently working on. Key Responsibilities: - Understand and modify my existing Java code - Partition the given loop to enhance performance by effectively spreading the workload across different threads - Use the Executor Service method as the default way for threading Most importantly, to be considered for this project, applicants should highlight past roles or projects where they've successfully implemented a similar Java multi-thread solution. Additionally, having an excellent grasp of loop partitioning for performance enhancement will be a consider...

    $18 (Avg Bid)
    $18 Avg Bid
    8 bids

    Im attaching the original plans plus plans with my notes. I’m also attaching my new logo. I need the logo and name changed from Pokerrito to Stickbug on all pages. I also need some minor photo editing. See attached before quoting as this is a rather simple project. I need back as a PDF document no larger than 6mb please.

    $18 (Avg Bid)
    $18 Avg Bid
    60 bids

    I am seeking a talented video ad creator to help promote a specific luxury car model, with a key focus on portraying its comfort and high-end traits. This video ad aims to target business professionals who are in the market for luxurious rides. Key Details: - The video must creatively emphasize the luxury and comfort the car offers, showing it as an appealing choice for business professionals. - The storyline, graphics, and aesthetics should all contribute to an elegant, luxurious ambiance that reflects the quality and comfort of this car model. Ideal Skills: - Experience in creating high-quality video advertisements, especially for luxury items - Ability to curate a video ad that communicates luxury and comfort - Knowledge of the luxury car industry and its target customers ...

    $938 (Avg Bid)
    Local
    $938 Avg Bid
    1 bids

    ...Black and Gold color scheme. (Edited) PLEASE NOTE: AutoLux is one word and Unlimited is another word. "AutoLux" should be the word used above "Unlimited". Please SPELL the company name CORRECTLY. I don't want a logo that looks tacky, i want something that is eye candy, clean, sleek and attracts customers. This logo is for an automotive company that will be involved in buying and selling high end vehicles and eventually expand into further luxury ventures. I dont want to have to look at a ton of AI submissions. Id like to award someone that used their own skills, creativity, and artistry. Key requirements: - Iconic design: The logo should be distinctive, memorable, and visually appealing. The design should be able to stand alone and represent the essen...

    $59 (Avg Bid)
    Guaranteed
    $59
    751 entries

    ...segment. I need someone who can effectively communicate the unique value propositions and features of my products to this audience. - **Generating Leads**: In addition to spreading awareness, I want to turn this visibility into tangible leads. The ideal candidate should be able to implement strategies to convert engagement with our brand into potential customers. - **Driving Sales**: Ultimately, the end goal of this campaign is to drive sales for my digital products. Experience in crafting compelling sales copy and executing direct response marketing on Facebook is a must. Ideal Skills: - Proven track record in Facebook marketing for digital products - Understanding of B2B marketing and lead generation on social media - Strong copywriting and ad creation skills - Ability to an...

    $17 / hr (Avg Bid)
    $17 / hr Avg Bid
    35 bids

    Hello, I need a developer with a lot of experience in Java, Python and Socketweb - with the ability to create and solve problems with easy understanding of codes The rest of the details will be given to the correct developer

    $140 (Avg Bid)
    $140 Avg Bid
    51 bids

    I have previously worked code in and stored but it stopped working because readyPromise doesn't work and in that case, it can't load sequently and crashes. New Java stuff?? It doesn't recognize readyPromise with var/const only works as await. Async has problems too. Even without Crashing tilesets seem not to load both from ION and Private/Public Domain. Need to solve this ASAP. You need to download files and work within your Domain or IDE or any other way to work directly with CESIUM LIBRARY!!!!! Or I will give you my Domain FTP access to the project folder and you can Upload .js .html files and see RESULTS in this directory as it will load html and js: YOU HAVE TO WORK WITH CESIUM LIBRARY!!

    $20 (Avg Bid)
    $20 Avg Bid
    17 bids

    ...with PROOF that you (or your team) created the websites. I am looking for a skilled developer to create a high quality front end (including admin panel) without any bugs/alignment issues/spacing issues/responsiveness issues and work well and look good on mobile/laptop/desktop for my website using the MERN Stack. The key features of the front end design include a responsive design, user-friendly navigation, and custom animations. I prefer to use Tailwind CSS for this project. I need the project completed within 1-2 weeks, so the ideal candidate will have experience working with tight deadlines and be able to deliver quality work within a short timeframe. Tech: Front-end Framework: React.js/Angular with + Typescript Styling: Tailwind CSS Requirements: - Must be ...

    $905 (Avg Bid)
    $905 Avg Bid
    227 bids

    I am looking for an experienced Android developer to help with a couple of key issues in my app. The primary focus should be on UI improvements. Key Tasks: - Refactoring and enhancing the UI of my Android app - ...layout and design, including color scheme and branding, typography and font styles, iconography and visual elements - Ensuring a smooth navigation flow - Enhancing user interaction and feedback Other requirements: - The app's token refresh mechanism must be revised and optimized - You should be able to ignore battery optimization permission I would ideally like a freelancer who is experienced with Java, Android Studio and UI/UX principles. Experience with token refresh mechanisms and battery optimization is also highly desirable. Please provide examples of previous...

    $94 (Avg Bid)
    $94 Avg Bid
    17 bids

    I have Arduino code and a svc model and I’m using a application called Blynk for visualization I want to send the reading of the moisture sensor to the svc model as an input for prediction and send the prediction back to the Blynk or Arduino so if the output is 0 it stop watering and if its 1 it start watering

    $28 (Avg Bid)
    $28 Avg Bid
    10 bids

    I am looking for an experienced Android developer to help with a couple of key issues in my app. The primary focus should be on UI improvements. Key Tasks: - Refactoring and enhancing the UI of my Android app - ...layout and design, including color scheme and branding, typography and font styles, iconography and visual elements - Ensuring a smooth navigation flow - Enhancing user interaction and feedback Other requirements: - The app's token refresh mechanism must be revised and optimized - You should be able to ignore battery optimization permission I would ideally like a freelancer who is experienced with Java, Android Studio and UI/UX principles. Experience with token refresh mechanisms and battery optimization is also highly desirable. Please provide examples of previous...

    $12 (Avg Bid)
    $12 Avg Bid
    6 bids

    I aim to develop a w...tool is primarily intended for software developers and will be used to aid in the effectiveness of testing processes. Key Features: - Capable of analyzing data flow graphs to generate test cases - Simplistic, user-friendly interface designed for software developers - Incorporation of Java programming language for analysis The ideal candidate for this project should have: - Proficiency in web application development - Strong understanding of data flow graphs and test case generation - Excellent command over Java programming - Previous experience in creating tools for software developers This project is a great opportunity to contribute to the efficiency and productivity of software developers, with an emphasis on generating test cases through data flo...

    $516 (Avg Bid)
    $516 Avg Bid
    58 bids

    3D modeling, rendering of 3-4 images as we see fit, photoshop touch ups and some back and forth during the modeling process for pool area including everything seen in the plan provided and discussed on chat.

    $1096 (Avg Bid)
    $1096 Avg Bid
    1 bids

    We're in need of an experienced Data Sc...cleaning: The candidate should be able to clean and preprocess large datasets. - Data analysis: The candidate should be proficient in analyzing data and extracting actionable insights. - Machine learning modeling: The candidate should have experience in building and implementing machine learning models. Although specific programming language requirements were not provided, proficiency in Python, R, or Java would be a strong advantage. This project does not specify a particular industry domain, but any prior experience in Healthcare, Finance, or Retail would be beneficial. Please bid on this project only if you have a solid background in data science, machine learning, data analysis, and are proficient in the programming languages m...

    $163 (Avg Bid)
    NDA
    $163 Avg Bid
    18 bids

    I need some Android developer for some easy tasks I need work at low budget I need coder from Pakistan or India

    $5 / hr (Avg Bid)
    $5 / hr Avg Bid
    18 bids

    I'm looking to have a virtual wardrobe website developed that offers outfit recommendations based on the user's inventory. Key Requirements: - Outfit Suggestions: The website should be able to ...recommendations. This will include suggestions for different occasions and mix and match ideas. - Clothing Inventory Management: The system should allow users to manage their clothing inventory. This may include adding, modifying, and deleting items from their virtual wardrobe. Ideal Skills: - Experience in developing websites with outfit recommendation systems. - Strong background in front-end and back-end development. - Knowledge in database management and integration. I'm open to discussing the specifics of the project with interested freelancers, so fee...

    $107 (Avg Bid)
    $107 Avg Bid
    26 bids

    ...ColorCamera/rgb_preview.py. However, I would run into the error, "RunTimeError: No avaible devices." Originally, I thought this was a watchdog error since the it said "RunTimeError" but the watchdog timer only activates after 15 seconds and the terminal returns this error in less than 5 seconds. On Luxinos's documentation I noticed that if the camera is unable to connect to the DHCP server it has a fall-back IP Address, 169.254.1.222. Using my computer, I was able to run a script that gives me the IP address of the camera and I noticed the two matched. It also mentions "In many cases, your host machine will automatically be assigned an IP address in the correct range", which I'm assuming my computer does but my Raspberry Pi 5 does not. To ...

    $54 / hr (Avg Bid)
    $54 / hr Avg Bid
    23 bids

    I need some Android developer for some easy tasks I need work at low budget I need coder from Pakistan or India

    $7 / hr (Avg Bid)
    $7 / hr Avg Bid
    35 bids

    I'm looking for a competent Java developer to assist with the development of several data structures and algorithms. In this project, you will conduct a set of experiments to compare the performance of dictionary implementations that use unsorted arrays vs. sorted arrays. You are given the Dictionary interface () and its implementation class (). In addition, the file contains a list of 10,000 key-value pairs that represent certain measurements. Key Skills: • Expertise in Java programming • Extensive experience with diverse data structures and algorithms • Ability to adapt to fluctuating project requirements Your ability to create powerful, flexible systems with Java will be crucial for this undertaking. Though the

    $27 (Avg Bid)
    $27 Avg Bid
    17 bids

    A simple scroll parralax style one-page website on node/react or your suggestion here. The style has to follow website: tabularis...photo of the person and a name on the left. See the attached file. In the middle of the page should be a table with trasactions, use a component from react here (or other possible framework): DData for the table comes from the json file. Please add in the bottom after all information from a user sign: Need more info come to us. Please add 2024 to the end of the page. The website should be mobile and desktop ready. Examples, that we liked: - - -

    $155 (Avg Bid)
    $155 Avg Bid
    52 bids

    I'm in need of a Java expert who is proficient in implementing design patterns, specifically creational, structural, and behavioral ones. Key Requirements: - Implement all Creational design patterns (Singleton, Factory, Builder) - Implement all Structural design patterns (Adapter, Bridge, Decorator) - Utilize Behavioral design patterns effectively Ideal Skills: - Proficiency in Java - Strong understanding of Creational, Structural, and Behavioral design patterns - Experience in implementing design patterns in Java - Good problem-solving skills If you have a solid understanding of these design patterns and can effectively apply them in Java, I'd be happy to hear from you. Please provide examples of your previous work in this area. Note : Min pric...

    $75 (Avg Bid)
    $75 Avg Bid
    10 bids

    ...do Usuário (Frontend): Development of an intuitive and responsive interface for the overall administrative system and user back office. The overall administrative system should include pages for user management, transactions, surveys, and system settings. The user back office should provide easy access to personal data, token balance, transaction history, tasks performed, and direct referrals. Implementation of a personalized referral link for each user, allowing them to easily share the link to invite new users to the platform. 2. Backend e Lógica de Negócios: Development of a robust backend architecture to support the functionalities of administration and user back office. Implementation of business logic to calculate token appreciation base...

    $2418 (Avg Bid)
    $2418 Avg Bid
    44 bids

    I'm in need of a talented graphic designer with expertise in background removal for senior banners that celebrate graduation. Key Responsibilities: - You will be tasked with removing the background from images - We only need the image back with the blue background removed. - There are 111 images Ideal Skills and Experience: - Proven experience in graphic design - Proficiency in background removal techniques - Strong understanding of design principles - Previous experience in creating banners or marketing materials is a plus

    $361 (Avg Bid)
    $361 Avg Bid
    83 bids

    I need some easy work in Android I need some android apps using java I need easy work at low budget but for long term I need work from Pakistan freelancer

    $6 / hr (Avg Bid)
    $6 / hr Avg Bid
    13 bids

    ...software. Conduct comprehensive testing to identify and resolve any issues or bugs. Optimize system performance for reliability, scalability, and security. Stay abreast of emerging technologies and industry trends in inventory management. Provide technical support and guidance to end-users as required. Requirements: Bachelor's degree in Computer Science, Software Engineering, or a related field. Proven experience as a Software Developer, focusing on inventory management software. Proficiency in programming languages such as Java, Python, or C#. Familiarity with database management systems like MySQL, PostgreSQL, or MongoDB. Strong problem-solving skills with acute attention to detail. Excellent communication and collaboration abilities. Capacity to work independently...

    $362 (Avg Bid)
    $362 Avg Bid
    9 bids

    Need Little help in ongoing small project

    $15 (Avg Bid)
    $15 Avg Bid
    10 bids

    ...tasks: - Computing the Greatest Common Divisor (GCD) of a given set of numbers - Counting the number of characters in a file The main requirement for this project is to accurately measure the time taken to complete the entire process, including sending a file from the client to the server, computing the tasks, and returning the results to the clients. Ideal Skills and Experience: - Proficient in Java and Android app development - Strong understanding of networking principles and multi-client server applications - Experience with implementing complex algorithms, ideally bin packing - Solid knowledge on file handling and computation tasks - Previous experience in calculating process times Please note that while the project is focused on the Android platform, the server will b...

    $23 (Avg Bid)
    $23 Avg Bid
    6 bids

    ...audit. The ideal candidate should have good communication skills. You will have to own and android mobile device in order to be eligible for this project. You will visit 20 bars in the city of Stockholm every month and the payment for this project is €200 (per month) In each bar you will assess 1 product using our app that you will download on your phone. Product costs will also be covered at the end of the project. Training material will be provided before the project begins. Please Note: You must be available to complete the project within 10 days of every month. A start date and deadline will be provided every month. Specific requirements for the project include: - Conducting bar audits in Stockholm, Sweden - Collecting data on an app - Must have an android device -...

    $209 (Avg Bid)
    Local
    $209 Avg Bid
    1 bids

    Enhancement for existing Java app. Who able to follow task shared onw by one.

    $155 (Avg Bid)
    $155 Avg Bid
    52 bids

    I have an existing STEP file that needs to be modified, completed and technically prepared. The file will need to have its dimensions changed, features added or removed, and overall technical data checked and corrected. The ideal ... features added or removed, and overall technical data checked and corrected. The ideal freelancer will have the following skills: - Proficiency in CAD software, especially working with STEP files. - Attention to detail and ability to correct technical data. - Understanding of material properties and assembly constraints. - Experience in converting CAD files to PDF and DWG formats. The end deliverable will be the modified STEP file, in two different dimensions (3750mm and 5000mm as opposed to the original 4375mm), exported into both .PDF and .DW...

    $131 (Avg Bid)
    Urgent
    $131 Avg Bid
    26 bids

    I need a WordPress website for my plumbing maintenance business, targeting residential homeowners. 10 TO 12 PAGES WORDPRESS WEBSITE. - The site should prioritize usability and user engagement, to attract and retain primarily residential homeowners. - It should have a professional and clean design, reflecting the trustworthiness ...plus. Ideal Freelancer: - Proven experience with WordPress website development, especially for service-based businesses. - Familiarity with designing for residential audiences. - Proficient in integrating appointment booking systems. - Knowledge of SEO best practices for localized search. I'm looking to make this project as efficient and cost-effective as possible, while ensuring a high-quality end product. Please detail your experience and approa...

    $185 (Avg Bid)
    $185 Avg Bid
    97 bids

    I am looking for an experienced editor who can transform stock videos and images into min...final product aligns with my vision - Contributing to conceptualizing and enhancing narrative storytelling Essential Skills and Experience: - Proven experience with film editing - Proficiency in video editing for social media - IG Reels and YT Shorts - Knowledge of the rhythm and pacing in film - Experience in creating short films - Excellent communication skills No filming is required on your end, and script will be provided for you to craft into engaging, 60-second stories. If you have a flair for creative editing and love the challenge of working with pre-provided script, this could be the perfect project for you. Style of Reels:

    $61 (Avg Bid)
    $61 Avg Bid
    40 bids

    I'm looking someone who can interview. This means you are comfortable with asking questions and follow up questions to have a conversation that is natural and informative. The interview with me is on the topic of health and fitness. The end goal of this interview is to educate and engage a general audience, so the ideal candidate should be able to ask relevant questions, and guide the conversation in a casual and informative manner. Key Expectations: - Video Interview: The interview will be conducted in a video format. The freelancer is expected to handle all the technical aspects of video production. - Health Knowledge: The interviewer should have a good understanding of health-related topics to lead a meaningful discussion. - Public Engagement: The aim of the interview is ...

    $126 (Avg Bid)
    $126 Avg Bid
    25 bids

    I need assistance in setting up an Azure Redis Cache to enable quick data access for my distributed systems. Key Requirements: - A thorough understanding of Azure Redis Cache setup, particularly in a private endpoint configuration. - Proficiency in Java for integration with the Redis Cache. - Ability to ensure the cache is optimized for data access. It's essential that the setup is secure and efficient, ensuring the data access is quick and reliable for my distributed systems. Your expertise in this area will be valued greatly.

    $10 / hr (Avg Bid)
    $10 / hr Avg Bid
    8 bids

    ...a single page PHP/HTML/JS, fix it by the project defintion in the file and make it operational. The project's main functionality is to display an HTML page that contains an iframe and gif elements above it. Once the project is fully operational, I'll need it installed on a vanilla cPanel account, ill supply which runs on Linux Centos7 all changes made for the project will be committed back to github. Key responsibilities include: - Deploying the GitHub project on a vanilla cPanel account - Ensuring the project functions as intended - Implementing the minimalistic design requirements Ideal skills for this project include: - Proficient in PHP, HTML, and JavaScript - Experience working with GitHub projects - Familiar with cPanel deployment on Linux This project would b...

    $144 (Avg Bid)
    $144 Avg Bid
    60 bids

    We are seeking a skilled React.js Web Developer to assist with a one-time project. The ideal candidate will be responsible for developing specific user interface components using React.js for a defined project scope. This project will involve building reusable components and implementing front-end functionality based on provided designs and requirements. Responsibilities: Develop specific user-facing features using React.js for the defined project scope Build reusable components and front-end functionality based on provided designs and requirements Translate provided designs and wireframes into high-quality code Collaborate with the project team to ensure alignment with project goals and deadlines Optimize components for performance within the project context Assist wi...

    $19 / hr (Avg Bid)
    $19 / hr Avg Bid
    202 bids

    I need an experienced graphic designer to professionalize a poster for an anniversary concert with the theme "back to the future". The poster should appropriately reflect this theme and serve as a visual representation of the band's unique character. I have added an example where you can think about it. The following text must also be included to order tickets: "Tickets can be ordered by email: to be determined. We would like to keep the rest of the text that is already on the poster. We would like the letters in the following color: ffd700 This is what I'm looking for: - Artistic band themes: First and foremost, the band's logo should be prominently featured in the design. The overall aesthetic should resonate with the band's image, style and ...

    $37 (Avg Bid)
    Guaranteed
    $37
    111 entries

    I'm looking for a seasoned Python developer with specific experience in image especially video analysis to create a script that can process a full mp4 video and ...extensions and reuse options (after MS4) Deliveries? - in our on premise git (access will be granted to you) - full sources (NO! Jupyter Notebook) - multiple samples of videos will be shared via URL to download - bash to build & run your code - poetry build - latest stable python version - libs, need prior confirm and we prefer to use mostly latest stable versions - your code is working on our end too - your code passes our CI build (with provided maven can be checked) - you may require to help us here on setup - we require, depending on availability and on complexity 2-4 weeks test time per milestone. Usually ...

    $251 (Avg Bid)
    $251 Avg Bid
    28 bids

    I'm in need of a junior Java developer to assist me in developing a web-based application for my personal use. This will be a great opportunity for someone looking to gain experience in application development. - Key Requirements: - Proficient in Java, C#, HTML, Javascript programming language - Understanding of web-based application development - Ability to troubleshoot and debug code Previous experience with Java, C#, HTML, Javascript is a plus. My main goal is to collaborate and share ideas with someone who shows initiative and creativity. Looking forward to working with you!

    $4 / hr (Avg Bid)
    $4 / hr Avg Bid
    34 bids

    I'm in need of an individual with an in-depth understanding of the 12-Factor App principles, particularly in Java. The main goal of this project is to apply these principles to our existing application, to enhance its scalability, maintainability, performance and more. Key aspects of the project include: - Codebase management and version control: You'll be tasked with setting up a robust codebase management system that ensures version control. - Dependencies management: You should have experience dealing with dependencies in Java applications, and be able to streamline and optimize these processes. - Configuration, release, and runtime processes: You'll also be responsible for ensuring that our application's configuration, release and runtime processes al...

    $72 (Avg Bid)
    $72 Avg Bid
    4 bids