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    2,000 freelancer code design jobs found, pricing in USD

    Api to scan smart contracts for vulnerability.

    $200 (Avg Bid)
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    I need a Fluter developer for mobile app work I need work from Pakistan or Indian developer I need work for long term and at low budget

    $6 / hr (Avg Bid)
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    I am seeking an Arduino programmer to help with a specific project. Key Responsibilities: - Writing code for controlling reed switches - Displaying data from the reed switches on an LCD Ideal Candidate: - Proficient in Arduino programming and sensor control - Experience in working with reed switches - Capable of interfacing with LCD displays This project requires a good understanding of sensor control, as well as being able to implement the desired display output. Understanding of the specific sensor, reed switches, is a plus. Please only bid if you have experience in these areas.

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    I need of a WordPress developer familiar with WPBakery Page Builder. A subtitle plugin code that should be integrated into my website. Ideal Skills: - Proficient in WordPress - Experience with WPBakery Page Builder If you're confident in your skills and can deliver a well-implemented code, feel free to bid.

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    ...introduce DTLS to an existing system for secure communication. - Tight deadline: This project needs to be completed within two weeks. Timeliness and reliability are crucial. I need the data coming from the server to the client over UDP socket to be encrypted with DTLS, and it should appear as DTLS in the protocol section of Wireshark. In addition, the code should be able to handle streaming video or live feed over the socket accordingly. This code should work in linux and windows. Ideal Skills and Experience: - Proficiency in C: Extensive experience with C language is a must. - DTLS Knowledge: Prior experience implementing DTLS is highly preferred. - Security Background: Strong understanding of encryption protocols and data integrity is necessary. - Time Management: Abi...

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    I need a Mahjong multiplayer game source code that follows Chinese rules

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    I'm in need of an expert in CSS who can tweak certain elements. The specific CSS elements or code that require modification are not yet defined but may include text styling, background color, or layout positioning, among others. Core of part of work that needs doing is defining style sheets so what the user sees is what gets printed! You will need to modify the code in an offline area and then i will import into the live system. I will provide CSS file and html snap shot of pages. We need to be able to print what we see on the screen the exact same way it is displayed. Currently we use saved 'pdf' files to print labels and we are trying to generate these at runtime. We can now generate them fine, but the last step, getting them printed requires some modifi...

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    I am in urgent need of an expert iOS developer to fix a critical code issue in my project which causes the app to crash upon launch. Key Requirements: - The bug is a code issue, not a UI layout problem or a functionality error. - The app crashes specifically during launch, not randomly throughout usage. - The project needs to be completed ASAP. Ideal skills and experience for this project: - Proven experience in iOS development, with a strong understanding of Swift and Objective-C. - Expertise in debugging and troubleshooting code-related issues. - Ability to work under tight deadlines and deliver high-quality results quickly.

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    The API you are building must 1) not rely on 3rd party honeypot scanner 2) must scan the contract code 3) must find if the code give "privileges" to another Wallet/contract so that wallet can perform minting unlimited new tokens or other actions that are supposed to be owner privileges. The primary function of this API is to identify contracts that contain a specific code, which when detected, marks the contract as a honeypot. Once a honeypot is identified, the API should upload an entry to a MongoDB database. (this is example of contract that should be considered honeypot ) open this contract. And go to line 455 _taxWallet = payable(0x6F55635a781db75bb532f94FAde4800AaB1E98a5);

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    ...functionalities of the code should include: - Fetching real-time market data: This is crucial for the functioning of the trading strategies and making informed decisions. - Placing buy and sell orders automatically: The code should be able to automatically execute the trading strategies by placing buy and sell orders as per the defined logic. - Creating custom trading strategies: The program should support the implementation of my specific trading strategies, which are the main feature of my trading approach. Ideal candidates for this project should: - Be proficient in Python and have experience with algorithmic trading. - Have prior experience working with the Fyers API or similar trading APIs. - Understand the importance of speed in the execution of the cod...

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    I'm seeking a skilled C++ coder to assist with my project. As the client hasn't specified the exact purpose, I require you to be skilled in various aspects of C++ coding including data analysis, game development, and system programming. Your application should ideally...application should ideally include: • Information on past related projects • Professional experience in C++ coding • A detailed proposal indicating how you intend to tackle the project While the timeline for project completion isn't set, a prompt demonstration of proficiency will be greatly appreciated. Please only apply if you have broad experience and proficiency in C++ coding. I need a freelancer who understands how to implement websockets using an existing http server framewo...

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    I need some Android developers in java I need work from New freelancers I need work for long term but at low budget I need a serious and hard working persons

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    I'm looking for a talented WordPress developer to help me create a dedicated freelancer hiring platform. Key Features: - Profile Creation for Freelancers: I want freelancers to be able to set up their profiles with a detailed portfolio and a comprehensive description of their skills. - Project Posting by Clients: Clients should be able to post their projects with clear specifications, budget range, and deadlines. - Ratings and Reviews System: Implement a solid ratings and reviews system to help build trust between clients and freelancers. Communication: - Direct Messaging: The platform needs to provide direct messaging functionality for seamless communication between clients and freelancers. - Project Commenting: To facilitate the discussion of the project details and requir...

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    I need some Android developers in java I need work from New freelancers I need work for long term but at low budget I need a serious and hard working persons

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    I require a skilled developer to work on an existing Android and iOS app. This app is aimed at providing a unique experience for users, combining music transmission with haptic sensations. Music vibration code /Musica Medica App requirements We need an app code for iOS and Android in FLUTTER and LAVAVEL for already existing app (android Google and iOS Apple-Musica Medica App) The wanted code effect is to make the smartphone emitting music and music vibrations generated from online downloaded music or mp3 /mp4music from the own library. The effect of the music vibration should be, by holding the phone in the palm, a haptic sensation, like the feeling by putting a hand on a speaker. Pls, take in consideration that it is not the normal vibration like in timer...

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    Hi Ayaz I., You have helped me in the past and I need some with PHPMaker Errors. Thanks, Randy

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    I'm in urgent need of an experienced Java developer for a single day job to enhance a couple of capabilities in a data management feature within an existing API. Responsibilities include: - Diagnosing the current API functionality - Refactoring a portion of the code - Developing and testing enhancements to increase its capabilities Skills and experience needed: - Proven experience as a full stack Java developer - Pattern recognition and problem-solving skills in Java/APIs - Adept at data management within APIs - Strong communication to provide updates on your progress The aim is not to only get the task completed but to improve performance and efficiency in the long run.

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    I'm in urgent need of an experienced Java developer for a single day job to enhance a couple of capabilities in a data management feature within an existing API. Responsibilities include: - Diagnosing the current API functionality - Refactoring a portion of the code - Developing and testing enhancements to increase its capabilities Skills and experience needed: - Proven experience as a full stack Java developer - Pattern recognition and problem-solving skills in Java/APIs - Adept at data management within APIs - Strong communication to provide updates on your progress The aim is not to only get the task completed but to improve performance and efficiency in the long run.

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    I need some Android developers in java I need work from New freelancers I need work for long term but at low budget I need a serious and hard working persons

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    I am in urgent need of an expert iOS developer to fix a critical code issue in my project which causes the app to crash upon launch. Key Requirements: - The bug is a code issue, not a UI layout problem or a functionality error. - The app crashes specifically during launch, not randomly throughout usage. - The project needs to be completed ASAP. Ideal skills and experience for this project: - Proven experience in iOS development, with a strong understanding of Swift and Objective-C. - Expertise in debugging and troubleshooting code-related issues. - Ability to work under tight deadlines and deliver high-quality results quickly.

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    ...who can design an e-commerce website with the following specifications: - The design should be created with a responsive layout, ensuring a seamless experience across all devices. - Interactive elements should be incorporated to engage visitors and enhance the overall user experience. - An easy to navigate structure is essential to facilitate user journey and encourage conversions. I don't have specific color schemes or branding guidelines, so I'm looking for a designer who can exercise their creativity with a modern, appealing design. Once the design is approved, I'll need the freelancer to provide the HTML/CSS code so that the site is ready for development. Ideal candidate for this project should have: - Proven experience in...

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    I'm currently encountering several problems w...issues are: - Specific issues with scaling of Images in some alignments. - Specific issues with moving objects and some of the Javascript Events. - Reporting Design inconsistencies. The ideal freelancer for this job should have the following skills and experience: - Mastery of Javascript coding and debugging, since the issue might revolve around faulty or missing Javascript codes. - A willingness to work with which is the graphics framework. No detailed knowledge is required. - Some exposure to Design Software and Mathematics, Game-Code, or CAD. - Strong understanding of UI design principles, especially consistency in design,. If you have a track record for similar jobs and are up for the chal...

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    I'm looking for an Unreal Engine 5 expert to assist me in resolving issues with specific mechanics...as the checkpoints in the project that are no longer functioning but were previously One of the cutscenes isn't rotating a spotlight correctly/showing it rotating. The ideal freelancer for this project should have: - Proficiency in Unreal Engine 5 Blueprinting. - Experience in debugging and resolving code issues within Unreal Engine 5. - Strong problem-solving skills to identify and rectify the root cause of the bugs in the movement and interaction mechanics. Please note that the successful completion of this project may also require the freelancer to provide a detailed explanation of the changes made to the code. Your prompt action and expertise i...

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    I'm seeking an experienced freelancer with a deep understanding of Delta programmable logic controllers (PLC) for a coding project. The tasks and functionality of the PLC code were not specified, so I'm looking for someone who can demonstrate creativity and a wide range of coding skills. There is no deadline for this project, so we can focus on quality instead of speed. Ideal Skills and Experience: - Proficient in Delta PLC coding - Strong technical understanding of PLC systems - Excellent problem-solving abilities - Good communication skills as the project details will be clarified further during discussions.

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    I am looking for a capable freelancer, preferably based in Texas, to assist with the critical task of integrating auto parts companies into my online website catalog. My website specializes in selling spare parts for cars, trucks, and heavy equipment. A working knowledge of automotive parts is highly desirable, with particular emphasis on the necessity of an easy-to-use online catalog format. Main requirements: • Experience in auto parts integration into online marketplace. • Efficiency in implementing and managing online catalogs while following up on integration procedures with each company. • Good communication skills to deal effectively with auto spare parts companies, in addition to integration with one of the shipping companies to ensure easy delivery of spar...

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    I need a Python developer to help me develop an optimized searching code. The main purpose of this code is to search for specific CSV files swiftly. It's crucial that these files are located with speed and accuracy. Key requirements and details: - The main goal of this task is to create a searching code that can efficiently look for CSV files amidst a large set of data - Please include your past work in your application, I'm keen to see what you've done in the past.

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    Hi I will generate the CUDA code for you Regards

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    ...and CSS expert to design and implement a data table with a broad range of functionalities. These include: - Sorting - Filtering - Pagination - Column resizing - Grouping - Column rearranging - Column hiding/showing Moreover, the table must also include extra features like dynamic totals calculation in the footer. Additionally, the data table should support dynamic cell data visualization. This feature should cover color coding, icon representation, and progress bars depending on the data type, which is to be detected when the data is assigned to the table element along with all the columns and their names. If the columns are resized, reordered, hidden or shown during runtime, these view details should be saved locally and remain persistent across sessions. The code ...

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    I need some Android developers in java I need work from New freelancers I need work for long term but at low budget I need a serious and hard working persons

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    I need a skilled developer to review the code of an existing PHP product. I'd like you to provide an in-depth analysis of how well the code is structured, and to what extent it supports security, performance, and scalability. Key focus areas for the review: - Security: Ensure the codebase is resilient to common vulnerabilities and threats. - Performance: Identify any bottlenecks or inefficiencies in the code that could be impacting performance. - Scalability: Assess how well the current codebase can accommodate future growth and expansion. I'm looking for the following in the ideal candidate: - Proficient in PHP with proven experience in code review and analysis. - Strong understanding of security best practices. - Experience in optimizing code...

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    ...modeling code for multithreading on a Windows platform. The model complexity is intermediate, requiring someone familiar with Windows-based systems and proficient in multithreading techniques, particularly parallel computing. You can use the auto parallelism function for ifort library. Thus the low budget. Key skills and experience required: - Proven expertise in Fortran development - Knowledge of scientific modelling - Familiarity with Windows platform - Proficiency in parallel computing for multithreading This project involves refining the code to ensure that multithreading functionality is both effective and efficient, contributing to the overall performance of the scientific model. You should be able to troubleshoot any potential issues and optimally integrate the c...

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    I am in need of an experienced Fortran developer who can compile my scientific computing code for multithreading use. Key Requirements: - The successful applicant must have experience in Fortran multithreading code compilation, particularly for scientific research applications. - The final compiled code must be Windows compatible. - Delivereables are the compiled code as well the source code. What To Include In Your Proposal: Please focus on your relevant experience, particularly any past work relating to the compilation of Fortran code for scientific modeling. Details of similar projects you've worked on will be highly beneficial in the selection process.

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    I need an expert to integrate the XPrinter with Code barcode labels on Windows using the Java programming language. Build new project from scratch and just make api run in local server windows, to receive data of product to be printed using xprinter device. You Need also to write code for connect to this printer. Key Requirements: - The integration must support Windows OS. - The barcode integrated . Ideal Skills: - Proficient in Java programming. - Experience in integrating hardware with software. - Knowledge of barcode systems. - Familiarity with XPrinter will be an added advantage. Please bid if you have the required skills and experience for this project. - device to working on windows:

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    I'm aiming at developing a robot that employs basic movement controls, thereby necessitating a detailed circuit diagram backed by Arduino code. Essential aspects to consider encompass: - The robot's main purpose: Robotics - Level of complexity: Basic movement controls - Sensors involved: Pir sensor, Tilt sensor Ideally, I am searching for a freelancer who possesses have an extensive background in robotics, especially with movement controls, and a strong understanding of Arduino. Proficiency in working with Pir and Tilt sensors would be a crucial addition as well. Knowing your way around servo, stepper, and DC motor styles would be helpful, even though this particular project might not necessarily utilize them.

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    Hello, We are presently seeking a script capable of accepting multiple pre-existing .psd files (Batch ordering is not required.) and storing them efficiently. Additionally, the script should allow for the transmission of PNG images to the backend via an API. Ultimately, we anticipate using smart objects as replacements and then receiving the output as JPEG images. For a clearer grasp of our requirements, I recommend referring to the functionalities showcased on

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    I...items to project papers. This ensures that items can be easily linked to the relevant projects, facilitating smooth issue tracking and project management. - **QR Code Scanning**: Additionally, the system should have a feature that allows me to scan QR codes. This will help me to easily link items in the physical inventory to their respective digital representation or project papers. I'm looking to have this project completed within a month. The ideal freelancer for this project should have experience in web application development, as well as a strong understanding of inventory management systems, image recognition, and QR code integration. Please only apply if you are confident in your ability to deliver a high-quality, efficient and user-friendly system wi...

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    I have an existing project written in C++, it's a simple plane simulator. What I am looking for is a complete rewrite for the project to change the game type. Currently, the code is based on a simple plane simulator, but I want it to be transformed into a different game. Ideal skills and experience: - Proficiency in C++ - Experience in code refactoring - Prior game development experience - Sound understanding of game mechanics and development - Ability to modify existing code to accommodate new game type

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    We need a dynamic and innovative API integration specialist specialized in no-code mobile application platforms! In this exciting position, you will work closely with our team to build integrations with third-party APIs, significantly expanding the functionality and data access of our mobile apps. A successful candidate is expected to have the following qualifications: Experience with no-code mobile app platforms (Adalo, AppSheet, Bubble, Thunkable, Glide, etc.) Extensive experience with REST APIs, live APIs, SDK APIs, cloud APIs and other API types Strong technical skills in API integration and data processing Problem solving and analytical thinking skills Written communication and oral communication skills Ability to work in a team and flexibility

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    I'm in need of an experienced Arduino programmer to make simple amendments to existing functions in my code. This project involves code which interacts with external devices - understanding of these interactions will be crucial. Requirements for this task: - Expertise in Arduino programming and language - Experience with code that interfaces with external devices - Strong attention to detail as subtle changes are required - Ability to ensure system functionality post modification I look forward to your comprehensive responses. Ability to deliver promptly and accurately will be considered for ongoing work.

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    Small update to the android app. Change the payment gateway "cryptomus" to stripe. After that. Compile the code to obtain the apk version and an .aab version that will be used in the Google Play Store. In turn, upload the updated code to the app server. Send me the updated source code as well. **************************************** The app is made on react Native, and the backend is Python. All the API's are made on Python.

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    ...developer who can fully analyze and understand a large code base. The key requirements for this project include: - Comprehensive documentation of all classes, methods, fields, and libraries within the code base. - Clear explanation of class hierarchy and their relationships. - Detailed overview of method usage and parameters, including field descriptions and data types. The code base is primarily built using Unity Engine and includes a considerable amount of custom code. Therefore, it's essential that the freelancer has excellent knowledge and experience with these platforms. Expertise in code analysis and documentation is also a must. Your documentation should enable any developer to understand the architecture and details of the co...

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    ...Implementing my existing design: Although I already have a clear design concept of what I want, I will need you to translate this into code efficiently and effectively. 2. Emphasizing on speed and performance: It is critical to me that the 3D animations and visualizations developed don't just look good, but also perform well under a variety of conditions. 3. Creating a 3D animation: The primary purpose of the application being developed is 3D animation. I expect lifelike, smooth, and detailed animations. Below are the key traits that the ideal freelancer for this job would possess: - Extensive experience with , GSAP, and VanillaJS. - The ability to write highly optimized, performant code that can run smoothly in a variety of situations. - A keen ...

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    I’m in need of an intermediate-level C++ coder for a bitcoin mining initiative. The successful applicant must be comfortable with coding for solo mining. This project doesn't require expertise in multi-threading or pool mining, but a firm grasp on the creation and development of bitcoin mining algorithms is essential. An understanding of SHA-256 algorithm implementation is a plus, though not mandatory. Looking forward to your bids, and to our potential collaboration.

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    I need a Figma Designer for mobile apps at low budget. I need a new freelancer I need designer for long term from Pakistan and India I need a serious and hard working person

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    • I would like to create VisaNet QR and payment links for invoices. • I would like the user to be able to scan that code or click that link and be directed to a payment page. With the details of the invoice and the possibility to make a payment. • After the payment is done by the user the funds will go to a bank account.   Thanks

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    ...content with Elementor Pro. Specifically: Flexible Content, Repeater and other Layout ACF Pro Fields. I'm in need of ongoing part-time support, which could include things like: custom ACF implementation, updating or revising design elements to match branding or style guidelines, training users on best practices etcetera. The ideal freelancer should hold advanced knowledge in Elementor Pro and ACF Pro, and be able to demonstrate this experience in the application. Detailed project proposals are expexted to demonstrate how the work will be approached and completed. The freelancer should have at least 3-4 years of experience in the industry, or have previously worked on similar projects. I'm looking for someone that can offer reliable communication and fu...

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    I'm looking for a developer to create a two-page website calendar for showcasing events utilizing ASP.NET and VB code. The project entails two key components. 1. Admin Page - You'll be coding an admin page that provides the ability to add new events. Even though I've skipped on choosing specific features for this page, keeping it functional and user-friendly is a priority. 2. Public Page - The public page's primary purpose is to display these events. While I haven't specified the exact display format, you should aim for a clean, easily navigable design, keeping viewer accessibility in mind. Ideal freelancer skills: - Strong experience with ASP.NET and VB Code - Demonstratable experience in user interface development - Good understan...

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    The task involving the completed code currently uploaded on Github. The focus is on implementing it to operate with AWS S3 for the CI/CD process. The required services are exclusively S3 since it is the only selected AWS service. An existing AWS account is already available, minimizing the time needed for account setup. I am preferably looking to contract someone with: - Expertise in DevOps - Extensive knowledge of Github and AWS S3 - Experience in CI/CD - Familiarity with AWS accounts

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    Hello, On Our website we have 4 submission box where a person should type information, we need to check that the submission boxes work correctly as one of them sometimes shows numbers instead of letters, I just need a freelancer to type information in those boxes for the first task, thank you

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    We have completed phase one of our project and now we are looking for UI developer to add more features into the exiting project. Our project is currently written with HTML, CSS, Node.JS and REACT and we would only want to continue the same technology stack with the same baseline code that will be shared once developer is awarded the project. We are in need of experienced UI developer with a proven experiences in HTML/CSS, JavaScript, User Experience (UX) Design, Node.js, and React and can quickly scan and debug the exiting codes, add new features and ensure the same pattern and structure is followed. ****************************************************************************************************** As part of this project, ONLY UI is needed and the backend APIs and Data...

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