Full stack java developer interview questions and answersроботи

Looking for a proficient Web3 developer who can take my project from conception to execution. Your responsibilities will include: - Developing Smart Contracts - Building a Decentralized application (DApp) - Seamlessly integrating blockchain technology into the platform This project aims for the implementation of a smart contract for supply chain management, facilitating transparency and security in our operations. Familiarity or proficiency with Binance Smart Chain (BSC) is crucial for this project because of its notable benefits over other blockchains. Ideal candidate should have: - Prior experience in smart contract development - Proficiency in DApp development - Extensive knowledge about Binance Smart Chain network - Proven experience in blockchain integration Feel ...

I'm in need of a VtigerCRM developer who can create automated Sales Orders in my system based on certain conditions. Specifically, I need: - Sales Orders to be triggered by the creation of a new contact, based on the contact type. - Customization of the Sales Orders based on the contact type, specifically through the selection of a relevant product or service. Please note that the level of integration required with existing systems has not been specified by the user. This could involve: - Data import/export - Real-time synchronization - API connections Ideal skills for this project include: - Proficiency in VtigerCRM - Strong understanding of VtigerCRM automation and customization - Previous experience with creating automated Sales Orders - Ability to integrate with...

I'm on the hunt for an experienced Flutter developer with a minimum of 2 years under their belt. Your primary task will be to transform an existing website into a WebView. This exciting project involves developing for the Android platform only which needs to encompass these must-have features: - User Authentication: Ability to securely register and sign in users. - Push Notifications: Timely alerts and updates for users. - Share and Playstore Publish Pictures: Incorporate image sharing capability, and prepare the app for Playstore launch, including providing plublish pictures. As no in-app purchases are required for this project, attention to a slick user-interface and seamless functionality takes center stage. If you furnish these skills ...

I'm in need of a skilled Flutter developer who can extrapolate and enhance my current work on an indoor navigation system specifically for Android. The key task at hand is the creation of a function providing turn-by-turn instructions with voice directions. The Google Text-To-Speech engine should be implemented for these voice directions. This system employs BLE technology to pinpoint the user's location and suggest the quickest route to their desired destination. Ideal Skills: - Proficiency in Flutter development - Experience of working with indoor navigation systems - Prior usage of Google Text-To-Speech engine - Knowledge of BLE Technology Your task will primarily include: - Developing a function for turn-by-turn instructions - Integrating Google Text-...

I need a flutter developer to create an app that is compatible with both Android and iOS. The app will require user authentication and user profiles. Key Requirements: - Flutter Development: Proficient in Flutter with experience in mobile app development. - Cross-Platform: Ability to create applications that work seamlessly on both Android and iOS devices. - User Authentication: Skilled in implementing user authentication and user profile features. - payment gateway - rest api integration Looking for someone who can deliver high-quality, user-friendly, and secure mobile applications.

...server that ultimately receives the data and processes it in Wordpress. The Incremental link makes a POST request to this script containing the data. In the script you see 3 types of actions in a switch: Add (new vehicle) Change (vehicle exists, adjustment is being pushed) Delete (vehicle is deleted) Below is a brief explanation of the three functions involved: add_post Here I build a Wordpress Query containing data from the POST request. Then I run a "wp_inset_post" function with this query. From that Wordpress function you will then receive a "post_id" with which I will add photos to the post. change_post Same as "add_post" but I use the "update_post" function because I already know the post_id. Then I'll delete all the photos fr...

Seeking Website Developer for 3D Animated Virtual Website (in Pune) *Description:* We are looking for a skilled website developer to create a 3D-animated virtual website for our business. The website will serve as an immersive platform to showcase our products and services in a visually engaging manner. *Project Details:* - *Scope:* Develop a 3D animated virtual website with interactive elements. - *Requirements:* Proficiency in 3D web development, animation, and virtual space design. - *Deliverables:* A fully functional 3D virtual website that effectively presents our brand and offerings. - *Timeline:* Flexible, aiming to complete the project within [insert timeline here]. - *Budget:* Competitive rates based on experience and proposal. *Respons...

I am in need of a Flutter Developer with over 2 years of experience for a small project. The main task involves integrating our website into a mobile Webview. Additional assistance is required for the app design, particularly the incorporation of our company logo into it. Requirements: - Over 2 years of experience in Flutter development - Ability to create a modern app design - Experience in incorporating logos into app designs - Capability to integrate push notifications Experience in Webview integrations and logo design is a must for this project. A skill set that combines these two key factors is what I am looking for. A bonus would be your ability to provide guidance and suggestions on the most effective way to set up push notifications. Looking forward to your p...

I'm looking for a seasoned Node JS developer proficient in: - Creating APIs - Developing server-side applications - Implementing real-time functionality These tasks are vital to my project and I need a freelancer who can handle them effectively. Understanding of libraries and frameworks such as , , and are crucial for delivering high-quality work. Although I did not specify any third-party services to be familiar with, having a broad knowledge of popular integrations would be a plus. So, if you're a Node JS developer who can create robust APIs, build server-side applications and incorporate real-time functionality, this job is for you. Skills & Experience Required: - Proficiency in , , - Advanced understanding of Node JS - Exper...

I need a Go developer experienced with websockets to resolve some issues from a real-time chat and live data updates. - I'm currently using Goland, so knowledge of this is essential. I'm seeking a simple implementation without the need for advanced features like authentication and authorization. The focus is on the core functionality and performance of the websocket. Ideal applicant will: - Have strong experience with Go and websockets - Be proficient with real-time systems - Be able to work on a simple implementation without additional complexities - Understand the importance of performance and scalability in the context of websockets.

...a catastrophe, where they must cope with resource scarcity, the struggle for survival, and conflicts between factions. Base Building: Players have the opportunity to build and expand their own base, which serves as shelter from the dangers of the outside world. Resource Gathering: To survive, players must gather resources such as food, water, building materials, and weapons by exploring the surrounding areas. Combat and Exploration: Players will face various threats such as mutant hordes, bandits, and other factions while exploring territories in search of resources and information. Social Interactions: Players can cooperate with other players, trade with them, form alliances, or compete for resources and territories. Requirements: Exper...

I just need assistant to help me create some pages of my website using the reference website.. the website is already create now you need to use chatgpt to rewrite some pages and move them to my website. i will be online working with you. (this is a job for a assistant, junior wordpress).

I am seeking an experienced developer to resolve a CORS error present in my .NET 8 website. I am learning full stack development. I created a web-api project in .net 8 which is having simple login, register and account controller and it works perfectly fine when I test using postman. Then, I develop a simple website in react and typescript to consume my web-API. And now I get CORS error. If you work with me, You need to resolve my CORS and probably authentication issue. Acceptance criteria: 1. signup should work (all coding done you only need to troubleshoot the CORS issue) 2. Login should work and JWT token return (all coding done, probably you need to check if I have done correctly) 3. after successful login user details (...

We're looking for multiple competent native English editors to trim content and help us improve English language usage across a large batch of tutorials. Starting with a paid trial. Please bid $18.

...talented UI developer with advanced skills in HTML and CSS. The ideal candidate should have experience working on modern design styles. Key Requirements: - Advanced proficiency in HTML and CSS. - Experience working with modern design styles. - Full time freelancer preferred. -Only individual freelancer not a company -Long term work We will start with this small work so please share your prices to do this: -It needs to be responsive -Its scroll feature should work: Top-bottom and vise versa -It should support these browsers: Chrome, Microsoft Edge, Firefox, and Safari -It should be div based only -Design and html should match 100% From our side there will be always support and no much pressure

I'm looking for an experienced Magento 2.0 developer who can create a medium-sized B2C single vendor eCommerce website. The website must have the following features: • User registration and login: Customers should be able to create their own accounts and subsequently log in to access our services. • Product catalog and search: A system for listing products and a search function to allow customers to easily find what they're looking for. • Payment gateway integration: A seamless method for customers to make secure payments. The website should have the capabilities to handle moderate product variables and an average traffic flow seamlessly. Key Magento 2.0 functions to be incorporated include, but are not limited to: ...

...intermediate Javascript developer to assist me with a few tasks on my project. I am looking for someone who can primarily work on front-end development but is also capable of bug-fixing. Key Requirements: - Front-end development: You should be able to take care of the front end development tasks efficiently. - Bug-fixing: You should be able to handle and fix bugs in the existing codebase. Skills and Experience: - Intermediate level experience in Javascript development - Proficiency in html, simple js - Familiarity with frameworks like AngularJS, ReactJS, or Vue.js would be a plus, but not a strict requirement. This project would be ideal for a developer with an intermediate level of experience who is looking to expand their portfolio. i just want to mak...

PRIORITY IS TO HAVE A DEVELOPER ON OUR TEAM (LONG TERM) THAT CAN WORK WEEKENDS!! 1st task (IMMEDIATE): Fix pagination -> our webapp uses an api endpoint to load data from stored procedure that takes 30 seconds to run. Pagination + cache was implemented but the pagination was implements AFTER the api runs (30 second wait) and should be executed inside the stored procedure to start sending data to the front end immediately, after it has the first 30-50 records instead of waiting to receive the entire 6000+ current records. We implemented cache but would like developer to evaluate the possibility of using redis to improve performance. If you are awarded the task we expect you to accept IMMEDIATELY and if the project is not accepted immediatly we will award i...

...AEM developer with a strong background in back-end development and intermediate level of expertise to help optimize the performance of my AEM site. Key Requirements: - Expertise in back-end development: As I'm looking to improve the performance of my site, I need someone with a solid understanding of how back-end development can impact this. - AEM experience: You should have a good knowledge of AEM,slightly,osgi,sling model,experience fragment,content frangment,component,editable templates. While intermediate level is sufficient, the more experience you have with this CMS, the better. Main Objectives: - Optimize site performance: Your primary focus will be on enhancing the speed and performance of my AEM site. This involves looking at back-end processes, id...

I'm looking for a skilled developer to create a web application using Bubble platform. I am working on a couple projects that I need help building.

I'm looking for a Google App Script developer who can create intermediate custom functions for me. These functions need to handle data processing across multiple sheets or documents, and also fetch data from external sources. The ideal candidate should have experience in: - Creating intermediate complexity custom functions on Google App Script - Handling data processing across multiple sheets or documents - Fetching data from external sources using APIs or other services Additional expertise in Google Apps and data analysis is a plus. A detailed understanding of the entire Google Apps ecosystem and the ability to work with external APIs will be essential to deliver the project effectively.

...undetermined internal server errors in my Orange HRM application. I am in need of a reliable and experienced PHP developer who can help identify and rectify these issues. Key aspects of this project include: - Determining and rectifying the causes of the internal server errors. - Experience with Orange HRM is not mandatory but could be a major plus. - Though the problem is currently limited to server errors, there may be potential for further tasks such as optimizing existing features or creating new ones. I have made attempts previously to solve these errors. However, the remaining issues suggest that the expertise of a knowledgeable PHP developer is required. If you have experience in handling similar situations and have consistently resolve...

I'm looking for a qualified developer with MERN stack (MongoDB, , React, and Node.js) expertise to create an e-commerce website selling physical products which is intended for a general consumer audience. Key functionalities essential to the project include: - Integration with Razorpay for smooth and secure payment transactions - Development of a admin interface with features such as: - Product uploading: Enables easy and efficient product listing and categorization. - Sales tracking: Provides real-time sales data analysis for business decisions. - Inventory management: Helps keep accurate stock records and prevents over/under stocking. The ideal candidate should have proven experience in MERN stack development, e-commer...

I have a presentation that needs to be done in 2 hours today. Very simple and straightforward. I will send complete details of the project which you will use to answer the following questions. Need to answer the following. • Integration into Project Lifecycle: Explain how value management will be integrated throughout the project lifecycle, from planning to construction to post-construction stages. • Identifying Stakeholder Needs: Describe how your team will identify the needs and expectations of stakeholders, including the client, end-users, investors, and the community. • Value Engineering Workshops: Highlight the plan to conduct value engineering workshops where team members from different disciplines brainstorm ideas to optimize value while...

I need an experienced cucumber expert to write down test cases using the Gherkin language for the testing of my Java-built REST API. • The testing will involve a Java-based REST API implementing OAuth 2.0 for authorization. • You will require knowledge and experience in both Java and REST APIs. • Proficient in API testing methodologies, and identifying endpoints and corresponding HTTP methods. • The ability to build comprehensive Gherkin scenarios is critical. An ideal freelancer should be proficient in Java, familiar with REST APIs, and experienced in using Gherkin language for API testing. Experience in OAuth 2.0 authentication method is also necessary.

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As an experienced Python programmer with a focus on OCR and deep learning, I'm looking for a savvy Python developer who can help develop an OCR Model using machine learning or deep learning. The model will be used specifically for complex math equations. The details are as follows: - Dataset: Unfortunately, I currently do not have a dataset available. This will need to be sourced or created, so previous experience in this area would be highly beneficial. - Accuracy Level: The intended target for accuracy is a moderate level, between 80-95%. A capability to improve this rate in the future would be seen as a significant plus. My ideal candidate will have experience with: - OCR and ML/DL model development - Sourcing or creating datasets - Achieving optimal acc...

I'm seeking an advanced C# developer with prior experience in creating desktop applications on Windows. Familiarity with TWAIN integration is crucial. Key Requirements: - Advanced C# Knowledge: The ideal candidate should be comfortable and well-versed in advanced concepts. - Windows Desktop Application Development: Previous experience in developing desktop applications on Windows is a must. - TWAIN Integration: You should have prior experience integrating TWAIN for image scanning functionalities. This is a challenging project that requires a high level of expertise in C# and experience in developing Windows desktop applications, particularly with TWAIN integration. If you're confident in your skills and have a solid track record in similar projects,...

I'm in need of a proficient developer who can code a typing program specifically designed for Thai text. The ideal candidate should have: - A strong proficiency in software development - A deep understanding of Windows OS The program should possess an essential feature which is a correct word-breaking routine. Furthermore, it should empower users to define their own word-breaking rules. Prior experience programming in languages compatible with Windows OS is vital. Preferred skills for the job would include: - Programming languages, C++, Java, Python - Windows application development - Ability to work with language processing algorithms This project requires someone who understands the intricacies of typing programs and the Thai language, someone who can create...

I need a skilled Android developer to update my existing Android app's code to generate a signed APK for submission on Playstore. Key requirements: - The current version of the app is not specified, but I need the code to be updated to the latest standards. - The task is focused on code improvements and updating; there are no specific changes or enhancements to be made to the app's UI/UX, resolving bugs, or adding new features. Ideal Skills: - Proficiency in Java and Android Studio. - Experience with app updates on Google Playstore. - Ability to efficiently navigate and modify existing code. - Capability to generate a signed APK. This is a straightforward task for an experienced Android developer. I look forward to receiving your bids...

...of complex mathematical equations into editable LaTeX code, Word, or text/markdown formats. Responsibilities: - Develop an OCR model using Python and relevant machine learning/deep learning libraries. - Integrate the OCR model into a user-friendly web interface for easy upload and conversion of screenshots. - Implement preprocessing techniques to enhance image quality and improve OCR accuracy. - Handle complex mathematical symbols and equations during text conversion. - Conduct testing and debugging to ensure the functionality and accuracy of the OCR system. Work Flow: - Users should upload images/PDFs. The system will extract information and display it in LaTeX code. A preview will be shown below alongside the LaTeX code to verify ...

...Website Rebranding and Marketing Campaign for Agile Coach Project Description: We are looking for a skilled and experienced freelancer to undertake a comprehensive website rebranding project for our client, an Agile Coach. The objective is to revamp the existing website to align with the client's LinkedIn profile and create a cohesive brand identity. Additionally, the freelancer will be responsible for developing a targeted marketing campaign to promote the client's abilities as an Agile Coach. Project Scope: 1. Website Rebranding: - Conduct a thorough analysis of the client's existing website and identify areas for improvement. - Develop a new website design that reflects the client's personal brand and aligns with their Li...

I am in need of a talented graphic designer ...pull-up banner, primarily for branding purposes. The banner will be used at a tradeshow, thus should adequately represent and grab the attention of passers-by. Key Requirements: -Company logo and product images must be incorporated into the design. -Ensure the design speaks to the caliber of our brand and products. -Preference will be given to those with a strong background in branding and tradeshow graphics. -I'm open to suggestions for a main message or slogan on the banner. Ideal Skills: -Creativity and innovation -Demonstrated graphic design experience -Expertise in designing for tradeshows -Proficiency in Adobe Suite Please don't hesitate if you have any questions regarding this pro...

I need someone to post 300 items to both my eBay and Poshmark stores. It’s about 300 totals and each item will be posted to both stores. I have all of the images of the items stored on Google Photos as well as a document that has the item date 1. Create a title and description for the item with ChatGPT 2. Post the item on eBay first with the images 3. Remove remove the background from the main image 4. Post the item on postmark with the background removed from the image as the main image just like you do for eBay You may use the same images and item description for both the eBay and Poshmark listings I will provide you with a few videos that provide detailed instructions on how to make the postings. Also, I will provide you with a Google Pho...

I'm seeking a professional web developer, extremely proficient in PHP and MySQL who can add an inventory module into our POS system. - Abilities: You should have substantial experience and demonstrated proficiency in building complex, user-friendly websites. Your PHP and MySQL skills must be exemplary. - Preferred Framework: I don't have a particular PHP framework preference. You can use the one you're comfortable with.

...in need of a Java Developer with a high level of proficiency in Java programming. The main purpose of this project is system integration. Key Requirements: - Expertise in Java programming and object-oriented programming is essential. - Prior experience and track record in developing applications for system integration would be a big plus. - Knowledge of software development practices and methodologies. The ideal candidate should be able to understand complex system requirements, design and develop Java-based applications that can seamlessly integrate disparate systems for efficient data flow and communication. Your ability to ensure the application is scalable and robust will be crucial for the overall succes...

Full stack developer needed to join our dynamic team. Responsibility: - Strong knowledge in backend and frontend : React, Angular, Vue, TailwindCSS, Web3, Java, ASP.NET, Django, Flask, Restful API, - Good Communication - Work at EST Time - English Proficiency - Pakistan Developer Only If you are interested in this position, please schedule an interview.

I'm in need of an experienced CodeIgniter developer who can assist with a project that involves user authentication and CRUD operations. Key Requirements: - **User Authentication**: - It should be simple and standard, users must be able to sign up with an email and password. - Implementation of basic security measures is a must. - **CRUD Operations**: - CRUD functionality must be implemented for basic data management. - This includes creating, reading, updating, and deleting records from the database. Ideal Skills and Experience: - Proven experience in CodeIgniter framework. - Strong understanding of user authentication and CRUD operations. - Ability to implement basic security measures. - Good communication skills a...

I urgently need a web developer to fix a couple of issues on my website. The main problems are that text is not displaying correctly and the footer is cutting into my content. Key Tasks: - Adjusting text alignment to ensure it displays correctly - Resizing the footer so it doesn't interfere with the main content - Modifying CSS styling to make the website look more professional and visually appealing I am looking for a developer who can complete this task within the shortest possible time frame. Experience with website design and development, particularly in CSS and HTML, is essential. A keen eye for detail and the ability to work quickly and efficiently are also highly valued traits for this project.

The website is: In a nutshell, we need a banner plugin added and some things moved around, but here is a more detailed brief: Please only bid on the job if you have read and understand the brief and can start today.

...seeking a highly skilled Full-Stack Developer to create a Telegram channels and groups directory website from scratch. This project requires you to develop both the UI/UX design and the backend code. You will not receive any pre-existing design templates such as Figma, but you may refer to a competitor's website for inspiration. The goal is to build a platform that efficiently categorizes Telegram channels and groups by country and category, facilitating easy navigation. This website will be developed using React, Node.js, and PostgreSQL. It must be fast, secure against common web threats including SQL injections, Cross-Site Scripting, and IDOR's. It should also be optimized for search engines to achieve high vis...

I'm in need of a skilled professional to help me in developing a cross-platform application and website. Key Project Details: - The primary goal of the website is still under consideration. Currently, the focus is on the application, but there is a possibility of expanding to include an eCommerce website, a portfolio display, or an informational site. Ideal Candidate: - Proficient in app and web development, particularly in cross-platform applications. - Experience in developing eCommerce websites, portfolio sites, or informational websites would be an added advantage. - Strong communication skills and ability to understand and work with my evolving project needs.

... and can provide you with any footage and music that you want to use from there. You must use a nice clear AI voice that sounds natural and not like an AI voice. I like the way the one sounds in the videos above. I will provide you with a detailed script for each video that will have the text of what the AI voice should say along with what the scene should show. I will need you to create the video. If this goes well, I may hire you for more videos. The video should be 90-seconds. I hate auto-bidders and I always delete the bids. I took the time to create a details project description so please take the time to read it and not just sending a canned message to every job in hopes of getting work. Please put “I have read the entire project...

...Laravel developer who can help advance a personal accounting website I've started. The main functionalities needed are: - SASS functionality for website use - Managing and reporting transactions and bills - Help group transactions and subscriptions - Bank account synchronization via APIs. While I do want this function, I'm not locked into a specific bank API yet. I'm eager to hear your recommendations on this. - Reporting the synchronized transactions. The ideal candidate is someone with substantial experience in Laravel development. Specific skills in integrating banking APIs or creating data reporting features will be a plus. I've provided a full and detailed brief for the project. The very basics of the site has been st...

I'm in need of an experienced Python developer to assist with the development of critical web security tools. While specific tools aren't outlined below - Subdomain Enumeration: Subdomains to be listed and categorized. - Directory Enumeration - Sensitive Parameter Detection - XSS Testing - SQL Testing

...looking for an expert in VBA and macros to help streamline my processes in Excel. Key Requirements: Shifts: Defined two shifts in the "task tap": Morning: 6:00 to 15:30 Afternoon: 14:00 to 22:30 Quality: Updated the agreed-upon columns in the "quality tap." And remove the error code if there is no any number Delays: Ensured delays are reflected as discussed. Task Order: Arranged tasks in the "task tap" from oldest to newest. Please review the file and let me know if you have any questions or require further changes. Requirements: 1- Required an option in this file (Excel) that when the planner change the completion date of any task in column K in the TASKS tap, the color of the cell will be changed to ye...

I'm actively seeking an experienced Python/Flask developer. Detailed specifications for the project were not provided, so a willingness to work collaboratively to clarify project requirements will be crucial in this role. Ideal Skills: • Python/Flask programming prowess • Experience with user authentication processes • Knowledge on data storage and retrieval • Proficiency with integrating external APIs Given that the design preference and platform compatibility weren't specified, a flexible mindset toward these aspects would be appreciated. Please be prepared to adapt to different styles and multiple device functionalities. Your input and expertise will be invaluable to shaping this project's success.

Description: We are seeking a highly experienced website design professional to assist with refinements and ongoing updates to our current website, which utilises WordPress and the BeTheme. This is a long-term opportunity for a skilled individual who excels in a dynamic, fast-paced environment. Work Arrangement and Expectations: - Hourly Rate: We are looking for a competive hourly rate. Please indicate your hourly rate expectations in your application. - Work Hours: Flexibility in the number of hours you can commit per day, with a minimum expectation of 2 hours between 9 AM to 3 PM Australian time. Please note, we require that work is performed during these hours to align with our team’s operations. - Direct Collaboration: We are specifically looking for indiv...

...need of a part-time, permanent WordPress developer who can both update and maintain my airline company's website. Main duties will include: - Regular maintenance to ensure optimum functionality and performance. - Deployment of robust security measures for data protection. Please note that the role is not solely limited to fixing bugs or addressing performance issues. A successful freelancer must possess an advanced understanding of WordPress, with proven experience in optimizing website performance and securing data. Specific upgrade features haven't been established yet, but I look forward to discussing potential improvements with the selected candidate. I am particularly interested in freelancers who constantly stay abreast of industry trends ...

I'm in need of a Java developer to create a student project using Java and MySQL. The main features of this project will revolve around 'Student Enrollment and Management.' Key Project Components: - **Student Enrollment and Management:** The core of this project, where students will be able to register and their details can be efficiently managed. User Interface Design: - **Simple and Intuitive UI:** The user interface should be seamlessly easy to navigate, aiming for user-friendly experience. Frameworks and Libraries: - **JavaFX for the Desktop Interface:** The project is expected to utilize JavaFX for the desktop interface. Ideal skills and experience for the job: - Proficient in Java (espe...