Java full stack developer interview questions jobs

I'm looking for an experienced Android app developer with strong front-end and back-end skills to develop an app based on my requirements. Specifically, the app should support in-app purchases and be compatible with all current Android versions. Key Requirements: - Develop front-end and back-end of the app - Implement in-app purchasing functionality - Ensure the app supports all current Android versions Data Management: - I prefer direct database access for content management - Utilizing third-party services for a more seamless and efficient data processing Ideal Skills: - Proven experience in Android app development - Proficiency in implementing in-app purchases - Strong understanding of both front-end and back-end development - Familiarity with managing data via direct dat...

I'm seeking a proficient C++ developer with ample experience to handle an update to our existing source code. You will be tasked with: Upgrading the source code to make use of the RandomX algorithm (no need to implement the algorithm, as we already have it ready and we will provide the source code), currently the source code is fully working with CryptoNight. Knowledge and experience with the CryptoNight or crypto coins are incredibly beneficial. You should be well-versed in updating and refining source codes.

DO NOT CONTACT OUTSIDE OF FREELANCER.COM Do not contact me if you believe this is out of your reach. The deal is fulfilled when everything works and is the same as it is at this moment. No payment before fully complete. Description: I want to create a design and function like this: https://www.houseofya...yellow (yarn Product) 5x - Denim (yarn Product) 1x - Black (yarn Product) Size L 11x - Nature wool (yarn Product) 3x - white (yarn Product) 1x - yellow (yarn Product) 7x - Denim (yarn Product) 1x - Black (yarn Product) I need to be able to set up for more variations aswell. When i set up each new product it needs to be simple, but i know there is a lot of information to put in. If you have any questions, ask me. I will not accept that you create something that is different ...

I require a skilled Java programmer to assist me with debugging a beginner-level program. Key aspects of the project: - Debugging: The main focus of this project is to help me fix basic syntax errors and runtime errors that I am encountering in my Java program. - Goal: The primary goal of this collaboration is to ensure that all identified bugs are fixed in the program. Ideal Freelancer: - Proficient in Java: The ideal candidate should have a strong understanding of Java programming, particularly when it comes to debugging and handling errors. - Patient and Detail-Oriented: As this is a beginner-level task, I am looking for someone who is patient and detail-oriented, to help me navigate through the debugging process.

I need a proficient Linux developer with a solid understanding of networking and security, and expertise in scripting languages like Bash or Python. The primary task will be troubleshooting and optimizing existing Linux systems. Also, superior skills in server administration and deployment are a requisite for this role. As the project unfolds, communication is critical, but I haven't decided on a reporting frequency at this point. Please provide suggestions on what you've found effective in your experience.

I'm currently looking for a React developer with knowledge in the use for FiveM, I'm just looking for a single developer, not companies or teams. I need the developer to do the frontend and call the events as the are called in the FiveM Game.

Storecheckers are a Global Market Research and Mystery Shopping company. We undertake worldwide mystery shopping visits and audits. This assignment is an audit of an Examin...the exam, give your ID, show a letter of authorization, which we will provide for you beforehand, and tell them what you are there to do. You will then sit with the TCA or the manager and ask a series of questions, and ask to see various things. The audit itself is very simple and easy, as we give you the form and you only have to ask the TCA/manager all the questions exactly as they are written and take a few pictures. The fee is $125 for the visit, which lasts four hours in total. Note that you will need a valid, photo and signature bearing ID for this visit. If you are interested, full guide...

Storecheckers are a Global Market Research and Mystery Shopping company. We undertake worldwide mystery shopping visits and audits. This assignment is an audit of an Examin...the exam, give your ID, show a letter of authorization, which we will provide for you beforehand, and tell them what you are there to do. You will then sit with the TCA or the manager and ask a series of questions, and ask to see various things. The audit itself is very simple and easy, as we give you the form and you only have to ask the TCA/manager all the questions exactly as they are written and take a few pictures. The fee is $125 for the visit, which lasts four hours in total. Note that you will need a valid, photo and signature bearing ID for this visit. If you are interested, full guide...

I'm in need of a skilled developer to create an intelligent transaction monitoring platform with big data capabilities, specifically focusing on real-time monitoring and fraud detection. Key Features: - The system should support real-time monitoring of transaction data. - It should have fraud detection capabilities. - Data visualization to aid in tracking and analysis. - Analytics for evaluating transaction patterns and identifying potential issues. - Smooth Data Pipeline with Realtime streaming for efficient data handling. - API integration with third parties to ensure seamless operation. Target Audience: This platform is primarily aimed at banking and financial institutions, as well as e-commerce companies. Preferred Technology Stack: - Java & Python fo...

I have 1 issue with socket.io-client. I developed the react-native project and tested it on Mac OS. I generated APK, but function is not working although that function is working well in Mac OS. If you have any experience, please let me know. Thanks

#1 Install FREE AI Chatbot so organizations can be matched with freelancers and create a quiz to match up 3 freelancers with every organization. Questions will be categorized by 3 categories. - General FAQs - Freelancer How to Get Started - Organization Matched up with 3 Freelancers #2 Freelancers and organizations can use FREE Chat gpt to create their profiles and project requests #3 Improve the website speed from C to A.

I'm looking for a React and developer that integrate a Partical background to our website ASAP. We found this interesting sample: Although it looks like Vanilla implementation, we want it to be integrated into our react landing page. We are looking for someone to integrate the background exactly as it is just without a loading spinner at the top of our landing page instead of the big blue banner on our website:

I'm looking for a skilled freelancer to connect my Shopify account to Instagram effectively. The primary functionalities I need include: - Syncing my entire product catalog - Enabling the tagging of products in posts - Creating shoppable posts on Instagram Furthermore: - I have yet to set up a Facebook Business Page for my Shopify store, requiring assistance with this initial setup too. - I need every product from my catalog integrated with Instagram, not certain categories or isolated products. The ideal candidate for this job should be proficient in both Shopify and Instagram interfaces, has past experience in e-commerce and social media integration, and knowledgeable in creating Facebook Business Pages. Your job doesn't stop at mere connection among apps but establishing a...

I'm seeking a proficient WordPress developer for my upcoming project. Here's a brief of the project: - I need a WordPress website that's user-friendly and functional. - The website should be optimized for performance and SEO. - You're expected to deliver a clean, well-commented code. Ideal skills and experience for this project: - Previous experience in WordPress development. - Familiarity with e-commerce and blogging functionality. - Proficiency in custom design is a plus. - Knowledge of SEO optimization. - Strong attention to detail and ability to deliver on time.

I'm looking for a seasoned Java developer who has experience working with XAMP. Your understanding of database systems is also crucial to this project's success. Please apply if you have the required expertise. No teams or companies please.

I'm seeking a skilled Flutter developer with full stack capabilities in PHP and Node.js. The project involves making UI/UX modifications to a social media app. Key Responsibilities: - Implementing color scheme updates - Redesigning navigation elements - Updating font choices to align with the new design The ideal candidate will have: - Proficient experience in Flutter - A strong foundation in PHP and Node.js - A portfolio that showcases previous work in UI/UX design - Good understanding of mobile app development - Experience with social media applications is a plus Please include your past work in your application.

I am looking for an experienced graphic designer to create a minimalistic logo for my company, incorporating our full name. The design should be simple, clean, and use a color scheme that majorly features blue and orange hues. Key requirements: - Proficiency in minimalistic logo design - Ability to include full company name in the logo - Expertise in working with blue and orange colors - Portfolio showcasing similar projects The ideal candidate must understand the essence of minimalistic design while effectively bringing in company branding. Your bid should include examples of your previous work relevant to this project.

I am in need of a mid-level Java developer who can take on tasks in both backend and frontend development, along with database integration. Ideal Skills and Experience: - Strong background in Java - Proven experience in both backend and frontend development - Track record in effective database integration - Mid-level experience required Project Methodology: - The selected developer must be well acquainted with the Agile development methodology. Proficiency in Scrum management or Waterfall approaches is a plus, but the main focus is Agile. This project promises to be exciting and offers comprehensive exposure to diverse aspects of Java development. If your experience aligns with the requirements, and you're well-versed with Agile, I would love t...

I'm urgently seeking a skilled graphic designer to help expand my skill set. The project involves learning the basics of graphic design and I'm particularly interested in incorporating Java into my work. Key Requirements: - Proficiency in graphic design - Solid understanding of Java - Ability to provide clear, concise explanations for learning purposes The ideal freelancer for this project should have experience in both graphic design and Java. A background in teaching or tutoring could also be beneficial. I need someone who can effectively communicate complex technical information in a way that is easy to understand and apply. Please only apply if you can start immediately, as I'm looking to complete this project as soon as possible. I'm open t...

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: token refresh functionality ignore battery optimize permission run at startups functionality UI change 2 new api's refactor code for easier maintenance currently displayes persistent notification dont want it 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 relevant work.

I need a talented VB.net developer with a strong background in SQL Server. Key Responsibilities: - Develop software applications using VB.net - Efficiently manage databases - Designing, coding, testing, and debugging software applications using VB.NET. - Calling third-party API - Payment gateway integration - Stored Procedure Ideal Candidate: - Proven experience in VB.net development - Strong familiarity with SQL Server - Good problem-solving skills - Ability to work independently and meet deadlines. Please provide relevant work samples in VB.net development and describe your experience with SQL Server.

Our team is seeking a talented WordPress developer with specialization in theme customization, plugin development, and website maintenance to join us in bringing exciting websites to life. You will be involved in: - Collaborating on versatile and innovative projects - Utilizing your expertise to enhance our digital presence Ideal Skills: - Deep understanding of WordPress - Proficiency in Theme Customization - Experience in Plugin Development - Knowledge in Website Maintenance In your application, please include your past work. Examples demonstrating your proficiency in WordPress, theme customization, plugin development, and website maintenance are especially welcomed. We look forward to reviewing your contribution to this creative journey.

I need a React developer for immediate collaboration. The primary focus will be on frontend development, with special emphasis on creating a basic user interface, involving simple forms and buttons. Skills Required: - Proven experience in React, with a strong portfolio of work in frontend development. - Ability to work quickly and efficiently, meeting an immediate project deadline. - Familiarity with integrating APIs into a project. The ideal candidate will have: - Strong communication skills as this is an immediate requirement. - Prior experience working on simple UI/UX design. - A keen eye for detail and the ability to follow design specifications accurately. Please include examples of your work with your proposal.

I am seeking a skilled developer to create a comprehensive beauty appointment booking application that will run on both Android, iOS, and the web. As the app will be for beauty appointments, it will require a specific set of features to cater to the needs of both the service providers and the clients. Key Features: - User Registration: Allow both service providers (beauty professionals) and customers to create accounts. - Search Functionality: Clients should be able to search for beauty professionals based on their services and availability. - Booking and Payment: Seamless booking and secure payment processing. - Calendar View for Schedule: A clear and organized view of the availability of service providers. - SMS Reminder: Automated reminders to reduce no-shows. - Partial Section ...

...AWS. The tool will analyze an array of data sources and present the results using insightful visualization techniques. Here are the requirements: - Implement Amazon Cognito for user authentication and authorization - Utilize AWS Amplify for the app's development and deployment - Integrate AWS API Gateway for efficient data exchange - Integrate Stripe for payments. Need complete flow Our tech stack looks like: - Amazon Amplify for app backend, and front end - Gatsby JS coupled with AppSync for front end - Amplify UI and MUI Material for UI components Features that I need: - End to end user journey - from login/registration to offering profile capture, to custom subscriptions - User DMs, Push Messaging, Custom email notifications (using SES) - Analytics (details noted belo...

I'm in need of a proficient developer to build me a simple QuickBooks online application. This application should be geared towards triggering real-time dispatch of event data on items/products inventory to a webhook like Zapier. Below are the specific requirements: - Dispatching of Item Names, Quantities, and Prices: The application should be able to send all item/product data particularly item names, quantities, and prices from QuickBooks to Zapier. - Real-Time Data Dispatch: The application should be able to dispatch this data in real-time to ensure high responsiveness and accuracy of data. Ideal skills and experience: - Demonstrable experience in creating QuickBooks integrations - Familiarity with Zapier webhooks - Knowledge of inventory data management - Strong coding s...

I'm in search of an experienced developer skilled in Zendesk API integration for a project related to airline claim forms. I will provide you parts of the template and you will add the form, calculations, API integration and ticket creations. The website should be built in Laravel or secure platform. If you know about EC261 claims it makes it way easier to choose you. You will do the following: - Create a form which is predefined through parameters and questions. - Add airline and airport database and organize the data with live search preview. - Calculations based on airport distance and claim form. - Zendesk ticket creation along with correct ticket numer and relevant information. - Multilingual form and site (Swedish and English). Need someone to start ASAP.

I’m seeking a full stack web developer with proficiency in HTML, CSS, JavaScript, Python, Ruby, PHP, Node.js, and React to create a comprehensive hotel booking website. The primary aim of this project is to offer a user-friendly and efficient space for users to book hotels while enjoying a smooth and seamless experience. Features desired include: - Search functionality to enable effortless hotel discovery - Booking management to track and manage users' bookings - Incorporation of customer reviews to enhance customer confidence and choices - Integration of online payment solutions for smooth financial transactions - A Room availability calendar for easy checking of room availability - Multi-language support to cater to a global audience - A chat bot ...

I'm in need of a skilled Swift developer with experience in implementing in-app purchases in macOS applications. The application is already built and functioning, but I require assistance in adding a subscription-based in-app purchase feature. Key Requirements: - Have access to the Apple Developer Program and experience in submitting in-app purchase features to the Apple Store - Proficient in Swift, as the application is built using this language - Ability to implement subscription-based in-app purchases seamlessly - Experience in the development of macOS applications and complying with Apple Store guidelines Your responsibilities will include: - Implementing the subscription-based in-app purchase into the existing macOS application - Ensuring the in-app purchase featu...

I need a skilled PHP developer for a project that requires merging multiple images into a single template. The primary task is to overlay images on top of a template, creating a final image that is a combination of all the images. Key requirements include: - Merging multiple images: This project involves overlaying several images on top of each other to create a final composite image. - Positioning and Size: The ability to adjust the positioning and size of the images being overlaid is essential. While I prefer a simple drag and drop tool to adjust these parameters, the output should be precise. - Output Formats: The final image should be available in both JPEG and PNG formats. Ideal skills and experience for this job include: - Strong proficiency in PHP: Since this project will b...

I'm looking for a seasoned full stack developer with expertise in Flutter, React JS, and Node JS to build a comprehensive web application. The project will include, but not limited to: - Building a User authentication system - Implementing real-time notifications - Integrating data visualization tool The ideal candidate will have a proven track record of developing complex web applications. Familiarity with Firebase and Google Cloud is also a plus. Through this project, we aim to create a responsive, efficient and user-friendly platform. Your role will be crucial in achieving this goal. Please provide examples of web applications you have built previously that applied these skills, especially with real-time notifications and data visualization. I look forward to...

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: token refresh functionality ignore battery optimize permission run at startups functionality UI change 2 new api's refactor code for easier maintenance currently displayes persistent notification dont want it 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 relevant work.

I'm looking for a skilled blockchain developer with hands-on experience in Smart Contracts and DApps. The ideal candidate should also have proficiency in Frontend technologies like React. Key requirements include: - Developing Smart Contracts - Building DApps I'm open to suggestions for specific functionalities or features to be included in the Smart Contracts or DApps. Please respond with your relevant experience and a proposed roadmap for the project.

AUTO-BIDS WILL BE REMOVED. I'm in search of an experienced developer skilled in Zendesk API integration for a project related to airline claim forms. I will provide you parts of the template and you will add the form, calculations, API integration and ticket creations. The website should be built in Laravel or secure platform. If you know about EC261 claims it makes it way easier to choose you. You will do the following: - Create a form which is predefined through parameters and questions. - Add airline and airport database and organize the data with live search preview. - Calculations based on airport distance and claim form. - Zendesk ticket creation along with correct ticket numer and relevant information. - Multilingual form (Swedish and English). Need someone to...

...exception. * Where: Script '/home/beemo/dev/flutter/packages/flutter_tools/gradle/src/main/groovy/' line: 1419 * What went wrong: Execution failed for task ':app:compileFlutterBuildDebug'. > Process 'command '/home/beemo/dev/flutter/bin/flutter'' finished with non-zero exit value 1 * Try: > Run with --stacktrace option to get the stack trace. > Run with --info or --debug option to get more log output. > Run with --scan to get full insights. * Get more help at BUILD FAILED in 20s Running Gradle task 'assembleDebug'... 21.0s Error: Gradle task assembleDebug failed with exit code 1...

I'm in search of an experienced developer skilled in Zendesk API integration for a project related to airline claim forms. I will provide you parts of the template and you will add the form, calculations, API integration and ticket creations. The website should be built in Laravel or secure platform. If you know about EC261 claims it makes it way easier to choose you. You will do the following: - Create a form which is predefined through parameters and questions. - Add airline and airport database and organize the data with live search preview. - Calculations based on airport distance and claim form. - Zendesk ticket creation along with correct ticket numer and relevant information. - Multilingual form (Swedish and English). Need someone to start ASAP.

I'm seeking an experienced .NET programmer to add a new feature to my existing application. Specifically, I need a modification to bypass member search by using a querystring. The page concerned is this:- We wish to have a direct url that replaces the process of searching for a member (eg member no 161068) and arrives at page two directly. For example, entering 161068 in the search box and selecting Checkedandvetted then pressing 'review this company' moves the user to page 2- review your experience. This is what we want to achieve with a single url. This is so that we can provide a url like that will do the same as the previous steps. Ideal skills for this job will include: - Strong knowledge of .NET programming - Experience in modifying applications - Techni...

I'm in need of a skilled designer for our YouTube channel. Your task is to create visually appealing green screen templates. The goal is to enhance the visual quality of our interview videos. Key requirements: - Professional & Sleek: The templates should match the channel's theme of professionalism and sleekness. - Subtle & Integrated: The handling of text and graphics should be subtle and integrated, without overpowering the video content. Ideal skills and experience: - Proficiency in green screen design - Prior experience in creating templates for YouTube or similar platforms - Ability to understand and work with a professional and sleek design style - Expertise in subtle and integrated text and graphic placement Your work will play a critical role in enhancin...

I'm in need of a proficient developer with very specific skills for an exciting project. This project involves creating a poster maker for mobile platforms and should contain features like customizable templates and image importing. Key features and requirements of this project include: - Mobile platform compatibility: The poster maker should be intended for use on mobile platforms. - Feature implementation: It should possess two main features, 1. Ability to utilize customizable templates, and 2. Capability to import images. - Supported image formats: Importing of JPEG and PNG formats should be seamlessly facilitated. Ideal Skills: Expertise in mobile app development is required, with a profound understanding of integrating the required features aforementioned. Prior experie...

...Laravel developer who can integrate Dialogflow with my Laravel 7 application. Key Requirements: - The primary goal of the integration is to automate responses for user inquiries. Hence, you should be well-versed in both Laravel and Dialogflow to achieve this automation efficiently. - You'll need to set up a Dialogflow account and project from scratch as I haven't done this yet. Your experience in Dialogflow will be instrumental in ensuring that the setup is seamless and optimized for my application's needs. Ideal Skills: - Proficiency in Laravel 7 or 8 - Extensive experience in Dialogflow, including setting up accounts and projects - Strong understanding of automation and how DialogFlow can be leveraged to optimize user inquiries I'm looking for a proacti...

I urgently require a Framer developer to improve the user experience of our existing designs through the implementation of new interfaces, bug fixes, and the addition of animation effects. The project involves the creation of interactive prototypes to test user experience and responsive design. As the project is time-sensitive, it is crucial that the selected developer can commit to working on this project immediately. Ideal Skills and Experience: - Proficiency in Framer and its features - Strong understanding of user experience and design principles - Experience in creating interactive and responsive prototypes - Ability to fix bugs efficiently and effectively - Strong communication and time management skills

I'm in need of a Junior Full Stack Engineer who is proficient with Java, with beginner level experience. The primary task will be to work on implementing Go Live for an assigned project. Ideal skills for the job: - Understanding of Java programming language - Ability to work collaboratively on a team - JSON - XML - SQL - Data Mapping Some experience with project implementation is a plus. Dedicated beginners are also welcome to take their first steps in a real project.

Hello, I have a dating app that was developed 4 years ago and is published on Google Play. It was made in JAVA, but now the version is depreciated on the market. What I want for this app is to rewrite the code using Kotlin or Flutter, because this app was made in Java 4 years ago. Within the app it has many functions. Apply for this project and tell me the price at which you would do it. and The estimated time. - Implement in the app (Membership - payment plan with Google)

Project for a soccer video game. A stadium mounted on a floating island. The theme around the stadium is jungle, with many trees of the same style as the references, also with a few buildings or houses with lighting as if they had the internal lights on. The stadium must have 5 rows of spectators around it, the texture and colors of the grass on the playing field must be ...come out, there will be no throw-ins or corners. The dimensions of the playing field must have enough space for 18 players. of normal size are inside and do not create the impression that they are very close together. The floating island effect should be like the attached examples, the rock and water textures generating a kind of downward tip. The format in which I need the project is FBX. Any questions I will be...

Our goal is to develop a Reactive Web App that would help match care-providers with care-seekers (similar to what SitterCity does). We have requirements specs that we can provide to help get started on the project. The App must have web and mobile user authentication, as well as e-commerce integration and social media integration. For the e-commerce aspect, we would need features like checkout, payment processing, billing, etc. The social media integration should include features like logging in using social accounts, etc. We’re looking for in-depth knowledge of Web App development process, someone who can develop efficiently and according to our design specifications. Experience with creating an App with similar functionalities is a major plus. Building must be done with latest tech...

I urgently need a C++ developer to assist in expanding my project. Your task will be to implement a unique feature which requires capturing low-level screenshots directly from the GPU. The key responsibilities include: - Developing a new, specialized feature that captures and handles GPU screenshots. - Ensuring the smooth and efficient performance of this new feature. It's beneficial if you have prior experience with similar GPU-related tasks and a solid understanding of C++ programming, API integrations, and screenshot capture techniques. Please bid now if you believe you have the skills and can deliver swiftly.

I'm in need of a talented front-end developer to work on my corporate website. Your primary tasks will include the creation of a professional and corporate-styled landing page, login page, and selection page. Key Responsibilities: - Designing and implementing a professional and corporate-style for the landing page, login page, and selection page. - Developing a responsive layout that ensures a seamless experience across all devices. - Implementing interactive features where necessary. - Using HTML, CSS, and JavaScript to bring the design concept to life. Ideal Candidate: - Proven experience in developing corporate websites and landing pages. - Proficiency in HTML, CSS, and JavaScript. - A strong eye for design and a portfolio that demonstrates your ability to create professio...

I'm in need of a talented graphic designer who can create a design for our personalized beer glasses. Framework: - Output file as Vector file. - only two colors: The white design on a brown background - No need to place it on the beer glass; just show us the design - Design size: 3-inch wide x 3,5 inch tall. It can be oval, rectangle or something in betwee...Output file as Vector file. - only two colors: The white design on a brown background - No need to place it on the beer glass; just show us the design - Design size: 3-inch wide x 3,5 inch tall. It can be oval, rectangle or something in between - Must include the text " Alexander's Beer Glass" - This is not a Logo design; do NOT send me designs on business cards!!! Let me know if you have any questions. Tha...

Seeking a professional laravel developer and tester to test my website and create a list of GUI and functionality issues. Must be a comprehensive test of all functionality and GUI

Looking for a flutter developer for changes in an existing flutter project. Please provide examples of your previous Flutter projects and experience with flutter.