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Hire the best C Programmers & Developers in Portugal

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  • $50 hourly
    • 5.0/5
    • (10 jobs)
    Hi, I'm Andrey – a full-stack developer with 15+ years of experience in mobile, web, and cloud technologies. I develop end-to-end applications using Swift/Kotlin for mobile, React/TypeScript for web, and AWS for backend services. Working across the entire development stack helps me maintain consistent code quality and eliminate integration problems. My background spans multiple technical domains including embedded systems, graphics programming, and low-level systems development. Core Expertise: - Building native mobile and web applications with cloud backend integration - Managing software projects from initial architecture to deployment - Developing scalable systems with reliability and performance in mind - Adapting to new technologies and technical requirements Significant Project: As lead developer for a startup, I built a messaging platform for thousands of daily users. I developed: - Native iOS (Swift) and Android (Kotlin) mobile apps - React web frontend interface - AWS backend infrastructure with data storage The platform features included: - Text, image, and video messaging - User authentication and profiles - Push notifications across platforms - Secure data storage and transmission The system continues to operate with minimal maintenance, allowing the business to focus on growth. Technical Skills: - Mobile: Swift/SwiftUI (iOS), Kotlin/Jetpack Compose (Android) - Web: React, TypeScript, JavaScript - Backend: AWS (Lambda, API Gateway, S3, DocumentDB) - DevOps: Terraform, CI/CD pipelines - Additional: Firebase, Cloud Messaging, Algolia Search Specialized Experience Professional: - Embedded Systems: Developed GIS/mapping solutions with ARINC standards using C/C++ - Graphics Programming: Built OpenGL libraries and drivers for Radeon using C/C++ - Low-level System Development: Created performance-critical applications Personal Projects: - Computer Vision: Built a CNN-based detection system for a manicure app (2017) - Game Development: Created mobile games using C++ with SDL library - Blockchain: Developed smart contracts on Ethereum, TON, and Zilliqa platforms My Approach: I focus on delivering working solutions that meet business requirements. I've helped startups launch products on time and within budget, and I'm comfortable working independently on projects that span multiple technical domains.
    Featured Skill C
    ChatGPT API Integration
    DApp Development
    Prompt Engineering
    Artificial Intelligence
    Kotlin
    AWS Lambda
    Firebase
    Vue.js
    TypeScript
    Swift
    Java
    Python
    JavaScript
    C++
  • $40 hourly
    • 5.0/5
    • (31 jobs)
    Twenty-five years of experience in embedded software. Smart Home Automation Consultant & Integrator Payments integration POS software, EMV, PCI, ISO8583, ISO7816, DUKPT etc... RSA, ECC Linux, UNIX, C, C++ Pentester of POS hardware/software I like working in embedded hardware and creating new solutions, extending the base functionality of the original software/hardware Fuel Dispenser protocols Wayne, Gilbarco, Tokheim, Tatsuno, IFSF Tekelek ATG Fuel Tank Gauges Hydrogen/GPL dispensers POS apps in PAX, Ingenico, NEXGO and others Vending machines, MDB, Executive Extensive experience in debugging resource-constrained systems. RTOS, NuttX, FreeRTOS PLC Systems emulation Code porting ATtiny13, ATtiny45, ATtiny85 Pos terminal development MAX32660 MAX32520 ChipDNA STM32MP157C Kinetis Cypress PSOC6 ISO 11783 Emulator windows CE DOS Programming FreeRTOS, Gemalto, Nitrokey, Sentinel, HASP Raspberry CM4, CM3, Compute Module Jetson nano development and firmware OCPP Fire alarm systems conventional/addressable firmware Hitachi H8, TV Set Top Box USBTMC Hp-Ux, HpUX Allwinner Sunxi EVSE firmware RSL10 OSDP i.MX6, i.MX7, i.MX8 Lonworks echelon CORE3566, rockchip 3566 WaveShare ESP32-C6 ESP32-C3, STM32L55 Coral NPU LonWorks HL7 NAYAX CCI protocol
    Featured Skill C
    FreeRTOS
    Linux
    Firmware Programming
    Driver Development
    Cryptography
    Reverse Engineering
    Raspberry Pi Firmware
    STM32
    Embedded C
    C++
    Embedded System
    Real-Time Operating System
    Firmware
    Embedded Linux
  • $20 hourly
    • 5.0/5
    • (3 jobs)
    Hello, I'm Rui Casaca! I am someone very curious, commited and hardworking. I like to learn from each challenge and overcome myself. Currently working in an area related to security and civil protection for 10+ years, requiring skills such as: -Develop of basic websites. -Text summaries and text analysis. -English - Portuguese translation. -Review and script creation in Python, SQL and C++ -Basic presentation in PowerPoint and Power BI. -5+ years creating and editing products in ArcGIS Pro, ArcGIS Online and QGIS. -Create projects for Quickcapture, FieldMaps, Survey123, etc. -Basic 3D modeling with blender. I will be at your disposal, Thank you
    Featured Skill C
    Web Development
    JavaScript
    CSS
    HTML5
    Blender
    Python Script
    Translation
    Microsoft Power BI
    QGIS
    MySQL
    ArcGIS
    ArcGIS Online
    GIS
    Microsoft Excel
  • $45 hourly
    • 5.0/5
    • (2 jobs)
    With over 4 years of experience in the blockchain industry, I specialize in creating decentralized applications (Dapps), tokens, NFTs, and DAO smart contracts. Collaborating with industry experts, I'm actively working on multiple projects. My dual proficiency in business and blockchain development enables me to offer a distinctive approach to projects. I merge my knowledge of market trends and user requirements with my technical skills to design and execute blockchain solutions effectively. I can assist you with: ⚒ Crafting and rigorously testing smart contracts, ranging from basic to advanced, with a keen focus on security and efficiency. ⚒ Analyzing and optimizing existing blockchain solutions. ⚒ Offering guidance on blockchain strategy, including use case identification and feasibility analysis. ⚒ Implementing security measures and audits to ensure the safety of your smart contracts. ⚒ Monitoring and maintaining your blockchain infrastructure for continuous performance. ⚒ And much more.. Let's work together to turn your blockchain ideas into reality. Whether you're starting a new project or need help with an existing one, my experience and skills are here for you.
    Featured Skill C
    C++/CLI
    Blockchain
    Solidity
    Python
    TypeScript
    JavaScript
  • $40 hourly
    • 5.0/5
    • (1 job)
    I'm Filipe Oliveira, a computer science master's student on a mission to explore the vast realms of technology. With a profound passion for coding and an insatiable curiosity for all things tech-related, I specialize in code development and testing. However, my journey extends beyond lines of code – it delves into the exciting worlds of video games, AI, and emerging technologies. Technical Expertise: Code Crafting: As a coding enthusiast, I bring a creative touch to code development and testing, ensuring functionality meets innovation. Documentation Maestro: Proficient in both English and Portuguese, I wield my writing skills to create comprehensive and user-friendly documentation. I believe that clear communication is the key to unlocking the full potential of any tech venture. Passion Points: Videogame Aficionado: Gaming isn't just a pastime for me; it's a realm of endless inspiration. I bring this passion into my work, infusing creativity and a gamer's perspective into code and projects. AI Explorer: The possibilities of artificial intelligence captivate me. I am dedicated to exploring and applying AI concepts to create solutions that push the boundaries of what's possible. Mission Statement: My mission is simple – to create the best possible tech solutions for businesses. Whether it's through meticulous code development, comprehensive testing, or crafting clear and concise documentation, I strive for excellence in every aspect of my work. Multilingual Advantage: Being fluent in both English and Portuguese, I bridge language gaps and ensure that my work resonates with a diverse audience. Clear communication knows no bounds. Join the Adventure !!! If you're on the lookout for a dynamic and passionate computer science master's student who can transform ideas into reality, let's embark on this tech adventure together. I'm here to create, innovate, and make the digital universe a better place!
    Featured Skill C
    Machine Learning
    Blockchain
    Blog Writing
    Written Comprehension
    Writing Critique
    Computer Engineering
    Presentation Design
    Subtitling
    Game Testing
    AI Content Writing
    Generative AI Prompt
    DJing
    Python
    LaTeX
  • $32 hourly
    • 4.9/5
    • (56 jobs)
    I am a systems analyst, software developer, professor and researcher with many years of experience and a PhD in Computer Science. I have developed systems for diverse industries and researched/published mostly in the areas of artificial intelligence and games. I'm also a polyglot with a long experience with languages such as English, French and Spanish.
    Featured Skill C
    Portuguese
    Academic Writing
    Apex
    Artificial Intelligence
    Prolog
    Lisp
    Visual Basic
    Java
    .NET Framework
  • $9 hourly
    • 5.0/5
    • (1 job)
    I’m a 26-year-old self-taught developer from Portugal, fluent in English and Portuguese. My journey into coding has equipped me with a broad skill set in front-end and back-end development. Here’s a snapshot of my expertise: Frontend Development: • JavaScript • HTML • CSS • React • WordPress Backend Development: • Python • C • SQL • PHP • WordPress Projects and Accomplishments: • Developed a Python-based to-do web app, showcasing my backend and frontend integration skills. • Created and maintained my live website, demonstrating my ability to manage and deploy web applications. I'm passionate about learning and continuously improving. My proactive approach to problem-solving and eagerness to explore and tackle new projects make me a valuable asset to any team. I'm responsible, with a proactive approach, always prioritizing on-time delivery and maintaining high organization and efficiency.
    Featured Skill C
    Portuguese
    Customer Support
    PHP
    SQL
    Python
    JavaScript
    CSS
    HTML
    WordPress
    Problem Solving
  • $9 hourly
    • 5.0/5
    • (1 job)
    I'm a native English speaker living in Portugal. Straight out of high school and looking for a job in IT, preferably online but can also travel to wherever I am needed. I have experience programming in C, Java, PHP and HTML.
    Featured Skill C
    Java
    Microsoft Access
    HTML
    Android App Development
    Microsoft Excel
    Microsoft Word
    Virtual Assistance
    Google Workspace
  • $20 hourly
    • 5.0/5
    • (6 jobs)
    Hello, I'm a dynamic Portuguese professional with a versatile skill set in multimedia production, programming, and creative technology. I have extensive experience in audio recording and editing, ensuring high-quality sound for a variety of projects. My programming expertise, particularly in languages such as Python and C++, enables me to develop efficient and robust solutions tailored to client needs. Additionally, I am proficient in Blender, where I create detailed 3D models and animations that bring ideas to life. Alongside these technical and creative skills, I also offer translation and localization services between English and Portuguese (European and Brazilian), ensuring accuracy and cultural relevance when required. I am always eager to embrace new challenges and deliver exceptional work across diverse creative and technical fields.
    Featured Skill C
    Blender
    C++
    Python
    Adobe Photoshop
    Translation
  • $7 hourly
    • 4.9/5
    • (1 job)
    Hello, im Rafael and i live in portugal. Current studying Software Engineer and i want to put in practice what i learn
    Featured Skill C
    Axure RP
    Django
    Java
    Web Scraping
    Web Development
    Arduino
    Python
  • $10 hourly
    • 5.0/5
    • (2 jobs)
    I am a developer that loves to write efficient code. If you have any time critical application or need an algorithm optimized i am the person for you. - Knows SQL and noSQL - Programing languages such as Java, C#, C, Python, Assembly
    Featured Skill C
    Microsoft Excel
    Internet of Things
    Translation
    Android
    Network Engineering
    Cloud Computing
    Assembly Language
    Python
    C#
    Java
    SQL
  • $15 hourly
    • 5.0/5
    • (2 jobs)
    I’m Bruno Teixeira, a game programmer. My main skills involve programming videogames in Unity (C#). I've done some prototypes in Unreal Engine (Blueprints) and Phaser (Javascript). I started my journey in game programming in high school and continued it through a technical course and some internships. Since then, I've worked professionally in the area for a year and I've developed and released a game of my own. Now I am currently looking for my next opportunity! If you're interested, please check my portfolio with some of my projects.
    Featured Skill C
    PHP
    SQL
    Bug Fix
    JavaScript
    CSS
    HTML
    Unity
    Phaser
    C#
    Game
    Video Game
  • $13 hourly
    • 5.0/5
    • (1 job)
    I'm a software Engineer with experience in small to medium programs in Java and small projects in OCAML, Python and C. With experience in SQL. If you need someone to guide you and build something you desire, I'm your guy. - Full project development in Java - Can do small projects in other languages - Enjoy regular communication to ensure satisfaction
    Featured Skill C
    SQL
    Algorithms
    Git
    GitHub
    Software
    Python
    Java
    OCaml
  • $45 hourly
    • 0.0/5
    • (1 job)
    Hi, I'm Sebastião Miranda, an AI/ML engineer with a background in physics and computer science. What I Can Help With: -Crafting Machine learning models for prediction and classification -Chatbots and AI assistants -Data cleaning, feature engineering, and analysis I’m curious, resourceful, and always open to new challenges. Let’s collaborate to solve interesting problems!
    Featured Skill C
    FastAPI
    Data Analysis
    PyTorch
    Machine Learning
    Flask
    SQL
    LaTeX
    Python
    Physics
    Mathematics
  • $50 hourly
    • 0.0/5
    • (1 job)
    An accomplished and driven Software/Hardware Engineer specializing in Robotics, Electronics, and Automatic Engineering, holding a Master's in Robotic, Electronic, and Automatic Engineering and a Bachelor's in Mechatronics Engineering. A detail-oriented professional with extensive experience in developing robust systems for the industrial market, spanning from proof of concept to final deployment. My training in electronic development enables a holistic understanding of product design, facilitating enhanced hardware and so ware integration with continuous improvement throughout the development process. Proficient in Python, SQL, C/C++, Assembly, MATLAB, and VHDL, I bring a comprehensive skill set to engineering projects. Passionate about integrating AI into tech solutions for innovation.
    Featured Skill C
    AWS Application
    PCB Design
    MATLAB
    Python
    C++
  • $67 hourly
    • 0.0/5
    • (1 job)
    Senior Software Engineer with 14+ years of diverse experience as a Full-Stack Software Developer, contributing to enterprise corporations, startups, and freelance projects while delivering innovative, high-quality solutions across multiple industries. Self-driven and proactive professional: Capable of independently managing projects with minimal supervision, provided clear context. Adept at engaging key stakeholders, eliminating ambiguity, managing scope, and effectively escalating issues, all while maintaining a sharp focus on priorities. Strong verbal and written communication skills, enabling seamless collaboration with cross-functional teams and stakeholders. Expertise in Agile methodologies and sprint-based development, including end- to-end involvement in planning, execution, testing, and delivery of robust software solutions.
    Featured Skill C
    Open Source
    Database
    API
    Windows App Development
    Docker
    Agile Software Development
    AI Development
    Git
    Linux
    Full-Stack Development
    Microcontroller Programming
    Embedded System
    Python
    Software Development
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    Software developer with a neck for out-of-the-box solutions and keen on problem solving. Used to be a one man team am also quite keen on working and leading teams up to 10 developers.
    Featured Skill C
    Python
    SwiftUI
    Swift
    Objective-C
    Techno
    Tech & IT
    Technical Support
    Technical Project Management
    Phone Communication
    Server
    Customer Service
  • $40 hourly
    • 0.0/5
    • (1 job)
    Now also on Upwork [ itcontractor telmoamaro com ] - Experienced software developer with over 20 years of expertise delivering cutting-edge solutions across industries like media, entertainment, education, safety, security, automotive, and aerospace. With an extensive portfolio of mobile apps, websites, and IoT solutions, my experience guarantees quality results and happy clients. Here are just a few examples of projects I specialize in: ✔ iOS and Android App Design and Development ✔ Native and Cross-Platform Mobile Apps ✔ E-commerce Websites ✔ API and SDK Development ✔ CRM Platforms ✔ Smart IoT Apps ✔ Drone solutions Development A few testimonials from satisfied clients: "Telmo's work on my project was of the highest quality. I would highly recommend anybody to hire him for any iOS or Android work that you need doing." — Mitchell L., United Kingdom ★★★★★ "My second carry-over project with Telmo was excellent. As expected, very professional and thorough." — Andy B., Belgium ★★★★★ My profile and successful track record demonstrate mastery in the following technologies: Mobile Development: ✔ Flutter ✔ Swift ✔ Objective-C ✔ Java ✔ Kotlin Web Development: ✔ Ruby on Rails ✔ Javascript ✔ Python ✔ Firebase ✔ API Development ✔ Backend & Database Design IoT & Hardware Integration: ✔ BLE Devices ✔ Robotics ✔ Drone Technology Server and Deployment: ✔ AWS S3 ✔ Google Maps & Apple Maps APIs ✔ CI/CD Pipelines If you are looking for someone who: ✔ Understands your product and its potential ✔ Can deliver exceptional results on time and budget ✔ Communicates clearly at every stage of development ✔ Treats your project like a top priority You’re in the right place! Let’s connect and make your vision a reality. I look forward to building a successful and rewarding partnership with you.
    Featured Skill C
    CAD
    Web Development
    Drone
    Python
    Flutter
    Kotlin
    SQL
    Software Development
    Ruby on Rails
    iOS Development
    Android App Development
    Swift
    Objective-C
    Java
  • $30 hourly
    • 5.0/5
    • (4 jobs)
    Web Developer, C programming, Android, Java, MySQL, PHP, HTML, CSS, Angular.js. From Braga, Portugal
    Featured Skill C
    Docker
    React
    Spring Boot
    Jenkins
    Django
    Portuguese
    Gatsby.js
    C++
    CSS
    HTML
    Python
    JavaScript
    Java
  • $35 hourly
    • 0.0/5
    • (0 jobs)
    I’m a front-end developer with over 8 years in software development and the last 3 years focused on modern front-end frameworks like React, TypeScript, and Next.js. I’ve worked remotely for international teams — including a leading private aviation company in Switzerland — building fast, responsive UIs and scalable CMS tools. 🔧 Skills & Tools: React.js, Next.js, TypeScript, JavaScript Tailwind CSS, Module CSS, Git Craft.js, Editor.js, Electron Backend with Java and SQL (other when needed) Strong communication in remote Agile teams 🚀 What I offer: Clean, maintainable, component-based front-end development CMS-focused interfaces and reusable UI libraries Consistent collaboration and thoughtful implementation Flexible availability for both one-off projects and long-term work
    Featured Skill C
    Redux
    Tailwind CSS
    TypeScript
    React
    Git
    Microsoft Excel
    Visual Basic
    C#
    JavaScript
    Java
    Python
  • $15 hourly
    • 0.0/5
    • (0 jobs)
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    Featured Skill C
    Autodesk Fusion 360
    Systems Engineering
    Control Engineering
    Mechatronics
    Robotics
    3D Printing
    PCB Design
    Simulink
    MATLAB
    C++
    Python
    CAD
  • $10 hourly
    • 5.0/5
    • (1 job)
    Are you looking for a highly reliable Electrical Engineer to support your industrial or energy project? I specialize in delivering safe, efficient, and standards-compliant electrical and instrumentation solutions for complex environments — including Oil & Gas, solar PV, and high-demand industrial facilities. 🔧 What I can do for you: • Design and dimension electrical systems (LV/MV) using Caneco and ETAP – including power flow, short-circuit, and protection coordination studies. • Create accurate single-line diagrams, panel layouts, and 3D cable routing with AutoCAD, EPLAN, and Revit. • Plan and optimize lighting systems with Dialux, and simulate solar PV systems using PVsyst. • Prepare detailed technical documentation: Load Lists, MTOs, hook-ups, cable schedules, and specs. • Apply field knowledge in instrumentation (PT, TT, LT, etc.) with understanding of ISA standards. 💡 I bridge the gap between engineering software and real-world implementation — using Excel to connect and validate data from all platforms. Let’s work together to make your project safer, smarter, and on time.
    Featured Skill C
    Project Management
    Solar Energy
    Power Systems Engineering
    Calculation
    Microsoft Excel
    Autodesk Revit
    DIALux evo
    PVSyst
    ETAP
    Autodesk AutoCAD
  • $10 hourly
    • 0.0/5
    • (1 job)
    Faculty of Sciences, University of Porto Masters degree in Network Engineering and Computer Systems (MERSI). Passionate about distributed systems/networks, cybersecurity, computational complexity and networking. - Professional experience integrating APIs and developing WordPress plug-ins. - Experienced in Python, PHP, C, Rust and Bash.
    Featured Skill C
    DevOps Engineering
    Linux System Administration
    PHP Script
    Computer Network
    Bash Programming
    Rust
    Python Script
    Computing & Networking
    Network Engineering
    API
    System Security
    Bash
    Python
    PHP
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    Skilled Software Engineer with a foundation in Industrial Engineering and over two years of experience in software development, consulting, and AI integration. I specialize in building robust full-stack applications using C, C++, Python, JavaScript, and frameworks like Django, React, and Bootstrap. My portfolio includes a range of projects from 2D games to network servers and web applications, each showcasing a commitment to problem-solving and innovation. I’m also experienced with Docker, PostgreSQL, RESTful APIs, and Agile methodologies. Ready to bring impactful solutions and technical expertise to your project. Let’s go!
    Featured Skill C
    Docker
    UX & UI
    VPN
    API
    JavaScript
    Python
    C++
    Django Stack
    Django
    PostgreSQL
    Web UI
    Web Application
    Web Design
    Web & Mobile Design Consultation
  • $5 hourly
    • 5.0/5
    • (1 job)
    If you are looking to develop an application or need help with your content strategy, I am here to help. With my skills and expertise, I can help you reach your goals and take your business to new heights. So, if you are looking for a writer and developer who can deliver high-quality work that exceeds your expectations, look no further.
    Featured Skill C
    Writing
    Arduino
    Editorial Writing
    C++
    C#
    Firebase
    Android Studio
  • $10 hourly
    • 5.0/5
    • (2 jobs)
    Finalist of a Bachelor's Degree in Computer Science and Software Engineering at Instituto Superior Técnico. His skills include Python, Java, C++, C and a few others that he learned both in his academic career and individually. He is a cheerful person, motivated and with great ease in working for a team, he learns and adapts quickly to any situation, making him an ideal worker/co-worker.
    Featured Skill C
    Discord Bot Development
    Web Scraping
    Computer Science
    TypeScript
    Python
    JavaScript
    Java
    React
  • $10 hourly
    • 5.0/5
    • (1 job)
    I'm a software engineering student with a passion for creativity and looking for any kind of work to get some life experience! - Experienced with Java programming, as well as some experience with SQL and C, currently learning web development with JavaScript(React). - I'm good at graphic design, especially images due to my experience with Photoshop. Can also work with video editing with Premiere at a moderate level. - I also very frequently cook as a hobby and I'm more than happy to apply these skills with my work. - Despite a lack of professional experience, I'd be very interested in working with creative writing if such work is available. I'm fluent in English and very capable of working with people, as well as having a passion for learning. Let's keep in touch!
    Featured Skill C
    Graphic Design
    IT Infrastructure
    Cooking
    Writing
    QA Testing
    Adobe Premiere Pro
    Adobe Photoshop
    SQL
    Java
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Top cities for C Programmers & Developers in Portugal
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