The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
C Programming is a powerful, high-level and highly structured programming language used to develop a range of applications, including operating systems, processing intensive computations and embedded systems. The language is designed to create a network of instructions that tells a computer what to do and how to do it. C Programmers are highly skilled software developers who understand how to turn lines of code into working programs that can solve a wide variety of challenges.
With their deep knowledge of the language, C programmers have an arsenal of tools at their disposal. From the basics like data structures and control flow, to more intricate details such as compilers and graphics libraries, C Programmers can create low-level system components, implement complex algorithms and develop sophisticated graphical user interfaces.
Here's some projects that our expert C Programmers made real:
At Freelancer.com we have the right C Programmer for any project you might need, no matter how complex or specialty it is. Our freelancers are highly qualified to write powerful applications in C and provide creative solutions with unparalleled speed and reliability. If you need help developing an application in C Programming, don’t hesitate to post your project on Freelancer.com today – our team of experts is ready to find the perfect solution for you!
From 180,734 reviews, clients rate our C Programmers 4.9 out of 5 stars.C Programming is a powerful, high-level and highly structured programming language used to develop a range of applications, including operating systems, processing intensive computations and embedded systems. The language is designed to create a network of instructions that tells a computer what to do and how to do it. C Programmers are highly skilled software developers who understand how to turn lines of code into working programs that can solve a wide variety of challenges.
With their deep knowledge of the language, C programmers have an arsenal of tools at their disposal. From the basics like data structures and control flow, to more intricate details such as compilers and graphics libraries, C Programmers can create low-level system components, implement complex algorithms and develop sophisticated graphical user interfaces.
Here's some projects that our expert C Programmers made real:
At Freelancer.com we have the right C Programmer for any project you might need, no matter how complex or specialty it is. Our freelancers are highly qualified to write powerful applications in C and provide creative solutions with unparalleled speed and reliability. If you need help developing an application in C Programming, don’t hesitate to post your project on Freelancer.com today – our team of experts is ready to find the perfect solution for you!
From 180,734 reviews, clients rate our C Programmers 4.9 out of 5 stars.Looking for someone who is proficient in cracking/patching software that requires a usb license dongle. The person would crack the program and provide full instruction on how they did it. Program will be provided upon hiring.
I need a small Windows-only application that can take a folder of 20–100 TIFF files, apply a unique pixel shift and crop to each image, then save the processed set to disk. After that, the program should average the processed images into a single composite frame and finally assemble every frame into a short video clip. All parameters—image size, batch size, per-file pixel shift, crop dimensions, output frame rate and any other relevant image settings—must be editable from a clean, graphical interface that carries my company logo. No multilingual support is required, so the UI can stay in English. To speed things up I can supply an existing Lua script that demonstrates the core image calculations; feel free to translate or rewrite it in the language you are most comforta...
I am looking for someone who is able to develop a Windows Kernel Driver. It can be done from scratch or by using existing implementations as an idea on how to tackle it. However you do it, it must have no license and/or depend on something else which defines a license which would restrict this driver. Requirements: -> Clean Code -> No security flaws and no bugs -> Portable; no installer; possibly temporarily installs as a service (?!); [...] -> Efficient; excellent performance -> Requires Administrator rights to execute -> Must run on oldest Windows OS possible; ideally at least Windows XP / Vista -> Must include signing of built dll/sys in build process (please use and include a self-created certificate to show functionality) -> Must be built with Microsoft Visual...
I need a concise Python 3 script that will run on a Raspberry Pi 5 and do the following: • Watch a single GPIO input line for the HIGH digital signal coming from my Sony camera’s built-in AI output. . The Sony camera will be pre-loaded with images of the target - in this case a plant which is detected in the target bounding box in the camera field of view. . When the target plant is encountered in bounding box of the camera field of view, the corresponding relay will activate a spray nozzle for the time the target remains in the bounding box. •The point above is achieved as soon as that digital signal is detected, drive a separate GPIO output that energises a small 5 V solenoid for as long as the target plant remains in the bounding box of the camera, then automatical...
Scope of Work 1. Broker Integration Connect the system with my broker terminal via API. The system must be able to place, modify, and cancel orders automatically. 2. Data Input (JSON Source) The system will continuously read a JSON file from a predefined source (folder). The JSON file will contain stock names and order instructions (buy/sell). The system should monitor the source regularly and execute trades immediately upon receiving valid data. 3. Order Execution All trades must be executed immediactely. The system should support both: Long (Buy) trades Short (Sell – intraday/MIS) trades 4. Position Sizing I will preset the amount per stock (capital or quantity) in system settings. The system will use this preset automatically for each trade. 5. Risk Management (SL &...
1️⃣ n8n Automation & Media Pipeline Integration Developer We are looking for a developer to help organize and connect an existing automation system. Most of the system is already built so the main work is reviewing the current structure and connecting or adjusting existing modules rather than building new features from scratch. Tasks include connecting and organizing n8n workflows, integrating existing automation modules, and adjusting FFmpeg-based media generation such as bulk processing, retry logic, subtitle/voice resolrution settings, and template-based design layout. Some small adjustments to existing Chrome Extension made by Playwright scripts may also be required if necessary. Its optional The current system structure is documented in Notion. The work should be done by review...
I need a seasoned LUA developer who also speaks the language of audio engineering to extend the processing palette on Symetrix, RANE and Allen & Heath DSP platforms. The work sits squarely inside each manufacturer’s SDK, so the GUI framework is already included what we need from you is efficient signal-flow code that drops straight into the existing interface. Primary tasks • Write well-commented LUA modules for DSP • Add pitch and general frequency-management routines that can be chained with, or operate independently of, the above effects. • Optimise code and supply test files that we can provide feedback on Further details on request..
Comat antigravity 2️⃣ Browser Automation & UI Integration Developer We are looking for a developer to help connect browser automation with an existing system UI. The system has already been built by another developer, so the work mainly involves reviewing existing code and connecting components rather than building everything from scratch. Tasks may include reviewing Playwright-based browser automation scripts, making small modifications if needed, and connecting them with the existing system UI or automation flow. Some small adjustments to Chrome Extension scripts may also be add grok The system structure is documented in Notion. Work should be performed by comparing the Notion documentation with the actual implementation step-by-step to identify missing connections or adjustme...
I need a seasoned system-level engineer to build a truly standalone mobile operating system—not just an Android or iOS fork. The goal is to deliver a fully bootable image that ships with: • A visually distinctive, lightweight user interface designed from the ground up for touch • Security enhancements at kernel, system service, and application layers (hardened permissions, secure boot, encrypted storage, etc.) • A native app-store framework so third-party developers can publish, sign, and update apps over-the-air You’ll own everything from low-level board support through to UX polish, so experience with toolchains such as GCC/Clang, device tree configuration, kernel customization, and UI frameworks (Wayland, Qt, or similar) is essential. If you have previ...
My Verifone VX520 is already working fine online, but I still have to keep business running when the network goes down. I need the terminal to keep a complete, reliable record of every purchase while it is offline, then upload the data once connectivity returns. In short, I want transaction logging fully activated and tested in offline mode. If you have hands-on experience with VX520 parameter setup, EMV kernel options and the usual Verifone configuration tools (VX Manager, PC Load, or comparable utilities), you will feel right at home here. I can provide remote access to the terminal or share current parameter dumps—whatever you need to move quickly. Acceptance criteria • VX520 successfully stores each sale locally with all mandatory fields (amount, PAN mask, date/time, aut...
I’m building an intraday futures setup on NinjaTrader 8 and need the entire workflow coded and tested within the next month. The core logic is a trend-following strategy written in C# / NinjaScript, but key calculations and data handling will sit in a companion Python module, so smooth, low-latency communication between the two languages is essential. Here’s what the job entails: • NinjaScript side: create a clean, well-commented NT8 strategy that reads signals, submits/updates orders, manages stops & targets, and records trade metrics for later review. • Python side: expose functions that generate my trend-following entries, manage position sizing, and push any analytics back to the NinjaScript layer. • Integration: set up whichever bridge you prefer&m...
A Windows-based trading bot has to sit between a Telegram signal channel and my Bybit account, duplicating every position with absolute accuracy. Two limit orders per direction, hedge mode, dynamic leverage, automatic re-entry, and a five-step pyramid that increases both margin and leverage are mandatory. Once price reaches my defined level, the position must move to break-even and follow a trailing (talking) stop; old trades should be closed and cleared from the log after a user-set number of hours. The bot must stay online 24/7, recover gracefully after a restart, and send every fill, modification, and error message back to me via Telegram. Stability and robustness are non-negotiable, but the most critical acceptance tests are: • Pyramid logic executes each of the five layers wi...
We are looking for a smart card specialist with proven experience encoding and programming IC cards using the ACS ACR38 Smart Card Reader. Please apply only if you have hands-on experience with smart card encoding and programming using ACR-series readers. This is not a general software development job. We specifically need someone experienced with IC card encoding/programming. Project Goal We need assistance to: Install and configure the ACR38 smart card reader on our computer Encode 5 sample IC cards containing user biodata Confirm that the encoded cards can be successfully read using our CRT-288 Creator Card Reader Train us on how to encode additional cards ourselves Sample Card Data Each card will store simple user biodata such as: Card ID Name Phone Number Age Gender The freelance...
Project Scope We would like to proceed with the prototype development of the SoilKare Agricultural Monitoring & Crop Quality Device as described in the engineering specification document we shared earlier. The system includes the following main subsystems: • STM32-based embedded controller • LTE communication module (SIM7600 or equivalent) • Soil monitoring sensors (pH, EC, moisture, temperature) • Water quality sensors (pH, EC/TDS, temperature) • Crop / leaf health sensors (chlorophyll / multispectral sensor) • Agricultural produce quality testing sensors (Brix, nitrate, crop moisture) • External ADC interface (ADS1115 or similar) • RS-485 interface for industrial sensors (Modbus RTU support) • Camera module for pest detection (ima...
Senior Python Developer – Containerized Geospatial Processing Library (Azure) Project Overview: We are seeking an experienced Senior Python Developer with deep expertise in geospatial data handling (GIS) and Docker containerization. The objective of this project is to build a robust, standalone Python library and execution environment that performs standardized geoprocessing tasks on vector and raster datasets. The final deliverable must be a highly secure, containerized microservice capable of reading from and writing to Azure Blob Storage, with strict input validation. Core Tech Stack: Language: Python 3.11+ Geospatial Libraries: GeoPandas, Rasterio, Shapely, PyProj, Fiona Validation: Pydantic Cloud: Azure SDK (Blob Storage, Key Vault, Identity) Infrastructure: Docker (Alpi...
We are launching a new premium skincare brand rooted in Ayurveda and advanced actives, and we’re looking for a freelance Social Media Intern to help drive early buzz and waitlist signups before is a hands-on growth role, ideal for someone who enjoys experimenting with content, trends, and community OverviewYour primary goal will be to drive signups to our website waitlist through engaging social media content and growth tactic
I am looking for an embedded systems developer to write Arduino code to communicate with the MCP3903 energy measurement IC from Microchip using the SPI interface. The goal of the project is to read voltage measurements from three channels of the chip and output the values through the Arduino serial monitor. Hardware: Arduino board (Arduino Uno or compatible) MCP3903 analog front-end IC SPI communication Requirements: The code should: Initialize SPI communication between Arduino and the MCP3903. Configure the MCP3903 registers correctly for basic operation. Read measurement data from the following channels: CH0 CH1 CH2 Convert the raw ADC data into readable voltage values (or at least raw measurement values). Print the measured values continuously to the Arduino Serial Monitor...
I have a C# application that is now locked behind WinLicense + Themida 3.x. My only goal is to regain access to the project so I can open it in Visual Studio and continue working on it. I do not need a ready-to-run executable; what I’m after is clean, compilable source code. Once unpacked, I want to see: • the full user-interface layout and resources, • the core functionality and algorithms, and • all data-processing and storage routines. A straightforward Visual Studio solution (.sln, .csproj, assets, references) with clear build instructions will be considered a complete delivery. If any sections remain obfuscated, please document the reasons and suggest next steps.
I have already drafted a full specification for a simplified television remote control aimed at older users, complete with ergonomics, button layout, and overall product vision. While I finish the patent application, I now need a skilled partner to bring the electronics and software to life. On the hardware side, the priority is circuit design. I will share detailed functional blocks, power-budget targets, and regulatory constraints; you would translate these into a clean schematic that is ready for board layout (I will also welcome help on the actual PCB routing once the schematic is locked). For software, I need both the embedded code that will run on the microcontroller and the on-screen user interface logic that appears on the TV. Simplicity and reliability for elderly users are the ...
I’m building a ROS 2 pipeline that must reliably spot nuts and bolts in a live camera feed and publish their positions to the rest of my stack in real time. Your job is to create the complete vision-detection module—from model training or fine-tuning through to a clean ROS 2 node that subscribes to an image topic and spits out the detected objects with bounding boxes (or masks) and a confidence score. OpenCV, TensorFlow/PyTorch and any of the common ROS 2 image-transport plugins are all fine as long as the final node runs on Humble and stays GPU-agnostic (CUDA acceleration is a bonus, not a requirement). I already have a test rig with a standard USB camera; if you need specific calibration images I can capture them for you. Please deliver: • Source code for the detection...
I’m looking to license or purchase a complete, already-finished Triple Chance slot game that runs smoothly on Windows desktop PCs. The build should be plug-and-play for me: install, launch, and the reels spin exactly like the classic Triple Chance experience. A key requirement is a built-in print function so the game can immediately send ticket or voucher information—winnings, session data, or simple receipts—to any standard Windows printer without extra configuration. The printer call must fire automatically after each game session or via a clear “Print” button inside the UI. I’m flexible on the underlying technology; Unity, C++, C#, or any stable framework is acceptable as long as it installs cleanly on current Windows versions and does not depen...
We are looking for a Senior Embedded Software Engineer with strong experience in Telecom/O-RAN to work with us on a client project. The role involves development, optimization, and maintenance of embedded software components in a Linux environment, with a focus on performance, reliability, and clean code. Responsibilities: Design, develop, and maintain embedded C/C++ modules for telecom/O-RAN systems Work on Linux-based environments, including debugging, optimization, and performance tuning Integrate and test software components within existing telecom infrastructure Collaborate with our internal engineering team and client’s technical team Write clean, maintainable, and well-documented code Participate in code reviews and propose improvements Requirements: Strong hands-on e...
-Project Title: ISO 38500 & ISO 10006 System Documentation Development (Manuals, Procedures, Policies & Forms) -Project Description: We are looking for an **experienced ISO consultant / technical documentation specialist to develop complete management system documentation for a technology services company based on the requirements of: ISO/IEC 38500 – IT Governance ISO 10006 – Quality Management in Projects The objective of this project is to create structured and professional system documentation, including manuals, procedures, policies, and forms aligned with both standards. Important Note: The client has already implemented several ISO management systems, and the main framework of the management system already exists. This is not a project starting from scratch, ...
My current Python script runs without throwing syntax or runtime exceptions, yet the results it produces are clearly off. I need a fresh set of expert eyes to trace the logic, pinpoint why the calculations deviate from what I expect, and then adjust the code so it returns accurate outputs every time. You will get the full source file and a quick note on what the correct outcome should look like. From there, I’m counting on you to: • Identify the specific logical missteps in the flow or calculations • Correct them cleanly, keeping the code readable and well-commented • Hand back a working version along with a brief explanation of the fix, so I understand what went wrong and how you resolved it The task should be straightforward for someone comfortable with Python...
I want a clean, well-documented Python application that plugs into the Fyers REST API and runs a fully automated intraday strategy. The logic is straightforward: a Moving Averages crossover confirmed by a Relative Strength Index (RSI) filter triggers entries, then the system exits when the opposite MA crossover appears or a user-defined RSI level is hit. Time-frames (1-min, 5-min, etc.) and all indicator parameters should be editable from a single config file so I can tweak the behaviour without touching the code. The program must: • Authenticate to Fyers using my API keys, refresh tokens automatically, and reconnect on dropouts. • Stream live market data, compute the MAs and RSI in real time (pandas_ta or TA-Lib are fine), and generate long/short orders the instant conditions...
I am ready to acquire a fully-packaged trading solution that has already been stress-tested in live conditions and is verifiably profitable—minimum 60 % return over a meaningful sample of trades. The system must trade across Forex, Crypto, and CFD markets, and it has to be plugged into an automation layer (bot or API integration) so I can deploy it immediately. Risk management is my top priority. Your method should demonstrate clearly defined position sizing, draw-down limits, and safety nets that have held up in both back-tests and live accounts. Without robust controls, the proposal will not be considered. To streamline selection, send a detailed project proposal that includes: • Strategy documentation explaining the logic, indicators, and time-frames • Proof of perf...
Don't forget to write your Github or Gitlab profile on the top of bid. If not, will ignore it. I’m building a full-featured desktop application and need an experienced Qt developer who is completely comfortable working in modern C++. The core of the job is to take my functional requirements, translate them into a clean Qt-based architecture, and deliver a polished, installable application that runs smoothly on Windows (and ideally macOS/Linux if you can accommodate cross-platform targets). You’ll be responsible for designing and wiring up the entire UI with Qt Widgets or Qt Quick—whichever best suits the final UX—while also implementing the underlying logic in efficient, well-documented C++. Robust error handling, responsive layout behaviour, and adherence to ...
I need help steering an LLM through a realistic engineering workflow on an open-source Python library. Your first step will be to choose a mature, well-documented GitHub repo that ships as a library or package and can be cloned and built with nothing more exotic than standard pip dependencies. Once the repo is agreed upon, you will frame a single, well-bounded engineering assignment for the model—perhaps a small feature, a non-trivial refactor, or a robust test suite—something neither superficial nor sprawling. From there you will run an iterative review loop: prompt the model, inspect its MR, request changes, and continue until the contribution is truly production-ready. That means the patch must follow project style, cover edge cases, include unit/functional tests, update do...
It's maths has to be ready by the 8th latest no ai or plag
computing and it Isn’t hard has to be ready by 6th latest no ai orplag
I have a 32-bit native Windows program that is still wrapped with Enigma Protector 4.x. I need the protection completely removed so I can freely modify and rebuild the binary. My own disassembly workflow is done in IDA Pro, so the final file must load cleanly there without any of Enigma’s obfuscation layers, virtual machines or anti-debug tricks. What I expect from you: • A fully unpacked, runnable executable whose behaviour matches the original one‐to‐one. • All sections properly restored, with imports, relocations and resources intact. • No remaining Enigma stubs; the file should be traceable and patchable in a standard debugger. Fast turnaround is important—I’m ready to test your output as soon as it is delivered and approve payment immediately...
I need a small utility that hooks into a PC game built on a custom engine and, at run-time, captures three things per frame: • the full 4×4 view-projection camera matrix • the depth buffer in linear space • the raw, uncompressed RGB back-buffer All data should be written straight to disk in a clean, well-documented CSV schema so I can feed it directly to my AI training pipeline later. Resolution, frame interval and output folder must be user-configurable through simple flags or an .ini file. I am comfortable providing you with a private build of the game plus symbols; the rest of the reverse-engineering or graphics API interception logic is yours to implement. Feel free to rely on tools such as RenderDoc, NVIDIA Nsight, Detours, or your own DLL injection met...
I need a Windows-based desktop application that turns a single still image into an AI-generated video, entirely offline. The workflow should rely on a local Stable Diffusion installation and incorporate the WAN2.6 model to drive the final animation—no external API calls, cloud processing, or telemetry of any kind. Core requirements • Runs natively on Windows 10/11 and installs with minimal user setup. • Accepts at least JPEG files for input; adding PNG or BMP later should remain possible. • Generates a short video (MP4 preferred) by feeding the image through Stable Diffusion and WAN2.6. • Interface must feel intuitive for non-technical users while exposing advanced settings in an “expert” panel. • Conversion speed is critical; please op...
We are building an AI-powered technical interview and remote assessment platform designed to automate and enhance hiring processes for global companies. The system will integrate real-time video communication, screen sharing, browser-based coding assessment, and AI-driven interview intelligence including automated question generation, live evaluation, and structured answer suggestions. We are seeking a highly experienced Full Stack Engineer to lead architecture and development of this scalable SaaS product. Russian Developer should be high priority for skilled people. Don't apply Indian people don't waste your time
IMPORTANT UPDATE – READ CAREFULLY This is NOT a design contest. This project was mistakenly posted as a contest. It is actually a highly technical Android development task. Only serious Android developers with experience in LSPosed, Zygisk, Magisk modules and Camera2 internals should participate. Generic diagrams, flowcharts, AI-generated explanations or conceptual images will NOT be considered valid submissions. Technical Objective Device: Pixel 8a (akita) ROM: EvolutionX 15 (Android 15) Root: Magisk + Zygisk + LSPosed Goal: Force a USB UVC external camera to behave as the ONLY usable system camera. Requirements: Any app requesting a camera must open ONLY the external USB UVC camera. Internal physical cameras must be unusable or invisible. No ROM building. No vendor mod...
I’m building an Android-based equalizer app whose very first mission is solid, low-level I2C communication. The app must be able to discover and talk to an external audio-amplifier chip on the bus, read and write its registers in real time, and let a physical remote-control key trigger those same EQ changes inside the UI. I2S handling can follow later, but rock-steady I2C comes first. You may choose any practical route—GPIO lines available on an Android SBC, a USB-to-I2C bridge, or another proven method—so long as it runs on a stock Android build. I can supply the amplifier’s data-sheet and register map as soon as the project starts. Deliverables • Full Android Studio project (Kotlin or Java) with clean, well-commented source • Working APK that finds...
We are seeking a highly skilled Mechatronics & Embedded Systems Engineer responsible for motor calibration, mechanical-electronic system integration, PCB quality enhancement, firmware optimization, and robust communication architecture development. The role demands strong cross-disciplinary expertise in electromechanical systems, embedded firmware, and wireless communication protocols. This position requires hands-on execution capability, system-level thinking, and ownership from prototyping to validation. --- Key Responsibilities 1. Motor Control & Calibration - Calibrate and tune BLDC motors (FOC / trapezoidal control). - Develop and optimize motor control algorithms. - Perform current sensing, torque tuning, PID optimization, and efficiency improvement. - Analyze motor performa...
I need help getting a working simulator of the Utimaco Atalla AT1000 Payment HSM up and running so my team can prototype against it before we commit to physical hardware. If you have direct experience installing, licensing, or configuring this specific simulator, I’d like you to: • Supply or point me to the correct, up-to-date installer and any mandatory libraries. • Walk me through the complete setup on a clean virtual machine (Windows Server or Linux—whichever you feel is smoother). • Verify that standard commands for PIN block translation, key import/export, and EMV transaction scripts all execute without errors. • Hand over a brief usage guide outlining start-up, shutdown, and basic test commands so my developers can continue on their own. A shor...
MetaTrader 5 Expert Advisor (Full Auto – ICT-Based – Strict Risk & Margin Control) Project Description: I am looking for an experienced MQL5 developer to build a fully automated Expert Advisor (EA) for MetaTrader 5. The strategy should be based on simplified ICT concepts and must include strict prop-firm style risk management. Strategy Logic (Mechanical ICT Approximation) The EA should: Trade Forex major pairs only (EURUSD, GBPUSD, USDJPY, AUDUSD) Detect Market Structure Shift (break of structure logic) Detect Fair Value Gap (FVG) Enter on retracement into FVG after MSS confirmation Include trend filter (e.g., EMA filter – adjustable) Set Stop Loss below/above structure swing Minimum Risk:Reward = 1:3 (adjustable) All logic must be fully automated (no man...
I am building a robot named GrowBuddy using ESP32. I need an experienced embedded developer to write clean and optimized firmware for the ESP32. Project Overview: GrowBuddy is a mobile service robot with the following features: 1. Face-following movement (commands will be sent from Android app via WiFi) 2. Obstacle avoidance using Ultrasonic sensor (HC-SR04) 3. Motor control using L298N motor driver 4. Servo motor control for grabbing objects 5. WiFi communication between Android app and ESP32 6. Stable and responsive real-time movement 7. Clean modular code (well structured, commented) ⸻ Hardware Being Used: • ESP32 Dev Board • L298N Motor Driver • 2 DC Motors • Ultrasonic Sensor (HC-SR04) • Servo Motor (for grabbing arm) • WiFi communication ...
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Learn how to find and work with a top-rated Google Chrome Developer for your project today!
Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.