Hire the best C# Developers & Programmers in Seoul, KR

Check out C# Developers & Programmers in Seoul, KR with the skills you need for your next job.
  • $35 hourly
    6 years of full stack web developer. Rendering programmer for realtime renderer and free renderer for gameing or GC/VFX. React.js Next.js, Nest.js, C++, OpenGL
    Featured Skill C#
    Android
    iOS
    AOSP
    ASP.NET
    Node.js
    React Bootstrap
    React
    Web Application
    C++
    TypeScript
  • $88 hourly
    Personal Statement * Summary With over 24 years of experience in software engineering, project management, and technical architecture, I have a strong track record of leading cross-functional teams to build scalable and resilient infrastructure using On-Premise, Cloud, and Kubernetes environments. My career spans complex and large-scale projects across telecommunications, IoT, big data, and cloud infrastructure, showcasing a wide breadth of knowledge and adaptability in diverse technologies and project environments. One of the key milestones in my career was leading the Ring Back Tone (RBT) system refresh project for GlobeTelecom while working as an expatriate at RealNetworks Philippines. This 17-month project involved a complete redesign of the hardware, network, database, and application layers. Competing against global vendors like Huawei and OnMobile, I successfully secured the project by presenting a customer-focused proposal.
    Featured Skill C#
    Cloud Architecture
    Big Data
    Database Management
    Architectural Design
    Problem Solving
    DevOps
    Architecture
    Database
    Python
    Golang
    SQL
    Java
  • $40 hourly
    I am a Full Stack Developer with over 10 years of hands-on experience building business-critical systems across a wide range of industries - from government platforms to enterprise ERP, monitoring, inventory, and kiosk administration systems. My core expertise lies in designing and developing robust backend systems using Spring Framework and building responsive fronted interfaces with JavaScript and JSP. I've worked extensively with database such as Oracle, MS-SQL, PostgreSQL and MariaDB. I am also experienced in setting up servers with Apache, Tomcat, and WebSphere. If you are looking for a reliable, detail-oriented developer who thrives on system optimization and seamless integration, let's talk! I am here to help bring your business ideas to life through clean code! * Freelance Full Stack Developer * 24/7 Support * Korean/English * Multi-tasking ability * Strong interpersonal skills * Competent with Microsoft Office tools/Outlook/Excel * Expert on Java, Javascript, .Net, C#, JSP, MS-SQL, Oracle, Postgre-SQL, Tibero and Maria DB
    Featured Skill C#
    MyBatis
    JSTL
    PostgreSQL
    MariaDB
    Oracle
    Microsoft SQL Server
    MySQL
    Spring Boot
    Vue.js
    .NET Framework
    JavaScript
    Java
    Web Development
    Web Application
  • $80 hourly
    Hello, I am Sussane Cho, an 8-year B2B Business Development Manager and Business English Interpreter. I started my career as a remote English interpreter for the 2018 PyeongChang Olympics. Since then, I have worked as a business development manager in various industries, including IT, content, international security, global pharmaceuticals, and K-beauty. I help my clients exceed their business goals with advanced go-to-market strategies for international markets, building and extending their presence from scratch. Throughout my career, I have honed my communication skills in export industries, handling all tasks in English, from negotiating contracts to conducting business meetings. Below are some of my key B2B business experiences for your reference. Thank you, Suyeon Jo [Key Experiences] 2024: • Korea-Africa B2B Business Export Consultation: • Facilitated export consultations and price negotiations for Kenya’s Lintons Beauty in K-Beauty products. • Seoul International Food Industry Exhibition (B2B Export): • Managed export consultations for Chicago Food Corp. in frozen and ambient foods. • INTERBATTERY (Battery Export): • Facilitated partnership agreements for a UK buyer on sodium-ion powder, cleanroom/dry room, and battery electrode coating machines. 2023: • KPEX (International Security Industry): • Managed partnership agreements for Egypt’s Hegazy Co. with domestic companies on defense systems and anti-drone technology. • SPP (Content B2B Business): • Facilitated online global export consultations for domestic animation, webtoons, and games. • GBPP (Global Bio Pharma Plaza): • Managed partnership agreements for Mongolia’s Lenus Med LLC with domestic pharmaceutical companies. • IKS (Invest Korea Summit): • Assisted in investment evaluations for Canada’s Telus in Agri-bio machinery, private satellite development, anti-drone, and jamming military defense technology.
    Featured Skill C#
    Game Development
    Game Art
    Game Design
    Game Background & Environment
    Windows Presentation Foundation
    Windows Forms
    Visual Basic
    Visual Basic for Applications
    Vue.js
    NodeJS Framework
    JavaScript
    Java
    Bootstrap
    Unity
  • $30 hourly
    Experienced Software Developer with over 5+ years of expertise in game development, simulation technology, and digital twin systems. Skilled in leveraging modern game engines like Unity and Unigine, as well as low-level technologies such as DirectX 3D. Passionate about creating games of various genres on all platforms, immersive simulations, from golf physics to digital twins for factory optimization. Proficient in developing real-time systems using machine vision, VR technology, and advanced camera sensors. Looking for opportunities to contribute to cutting-edge projects in game development, VR, or simulation software. Programming Languages: C++, C#, Python Game Engines: Unity, Unigine, Unreal Technologies: DirectX 3D, Machine Vision, VR Development Simulation & Visualization: Digital Twin Systems, Factory Simulation, Physics Engines Tools: Visual Studio, Git, JIRA
    Featured Skill C#
    VR Application
    Image Processing
    Android App Development
    App Development
    iOS Development
    Desktop Application
    Mobile Game
    Game
    DirectX
    Unity
    C++
  • $25 hourly
    -Software engineer -Native Korean lived in Korea for 30 years. -Proficient in English. -Voice recording / proofreading
    Featured Skill C#
    React
    CSS
    HTML
    C++
    JavaScript
    Python
    Java
    English
    Korean
  • $30 hourly
    I prioritize efficiency and strive to eliminate any unnecessary elements in my work. Emphasizing on streamlining and optimizing processes can become an asset to any development team.
    Featured Skill C#
    Java
    JavaScript
    Node.js
    Redis
    SQL
    PC Game
    C++
    Python
    Blockchain Architecture
    NFT
    Desktop Application
    Game
  • $30 hourly
    I’m a software and web developer with 16 years of experience in building enterprise systems for businesses. Whether you need to develop an ERP, CRM, or POS system, integrate APIs, or automate business processes, I can help. Proficient in C#, Java, Javascript, PHP, VB.NET, SQL Server (T-SQL/PLSQL), and VBA Experienced in database design, stored procedures, and system automation Have worked on full project development from start to deployment Regular communication is important to me, and I’m committed to delivering high-quality solutions that meet your business needs. Let’s connect and discuss how I can help with your next project!
    Featured Skill C#
    Transact-SQL
    Oracle
    ASP.NET
    .NET Framework
    .NET Core
    LINQ
    Entity Framework
    PHP
    Bootstrap
    jQuery
    VB.NET
    Java
    JavaScript
    Python
  • $40 hourly
    🔹 Senior WPF/.NET Developer | 10+ Years of Real-World Experience 🔹 I’m a seasoned software developer with over 10 years of experience delivering reliable, scalable desktop and web solutions across industries such as healthcare, manufacturing, e-commerce, and logistics. 🖥️ **Desktop Development** - Specialized in WPF, C#, and DevExpress to build robust and user-friendly desktop applications - Deep knowledge of MVVM architecture, performance tuning, and custom UI/UX components - Experience with hospital information systems (EMR, clinical systems), MES platforms, and Smart Factory solutions 🌐 **Web & Backend Development** - Full-stack capable with Java, Spring Boot, JavaScript, Nexacro, Vue.js, and RESTful APIs - Strong database skills using Oracle, PostgreSQL, and PL/SQL - Experience working with MSA architectures, batch processing, and 3rd-party API integrations (e.g. shipping & logistics) ⚙️ **How I work** - Detail-oriented and reliable, with a strong focus on code quality and long-term maintainability - Comfortable working independently or as part of a remote team - Experienced in Agile environments using Git, JIRA, and CI tools Let’s work together to turn your business needs into solid technical solutions — with clean code and clear communication.
    Featured Skill C#
    UI/UX Prototyping
    Asynchronous I/O
    Git
    REST API
    Entity Framework
    SQL
    Windows App Development
    Microsoft Visual Studio
    XAML
    Desktop Application
  • $25 hourly
    Highly qualified, tenacious and enthusiastic young professional, armed with broad-based background and skills in the areas of providing the appropriate solution to business needs and problems. Training and display outstanding ability to plan, coordinate, implement practices and procedures to bring significant improvements in efficiency, productivity and technology processes, towards the successful attainment of organisational objectives and goals. Determined to implement earned skills and knowledge for the rapid growth of the prospective organisation by working effectively and consistently, independently and under the pressure, as well as being a part of a team. Knowledge about many engines and languages (Unreal Engine, Unity3D, C++, C#, Java). Love to travel enjoys working with people, passionate about new technologies.
    Featured Skill C#
    Next.js
    Game Development
    Flutter
    Smartphone
    Web Application
    iOS Development
    App Development
    Android App Development
    Mobile Game
  • $19 hourly
    I am a software engineering graduate from Centennial College, with a bachelor's degree in computer information engineering from Inha Technical College. I have completed an internship as a fullstack developer at Faubert Applied Research Center. If you're trying to create an online store, I'm here for you. Have skills in C#,JavaScript, Android, MERN Stack, HTML and CSS Project management experience with Jira Your feedback values for me, so feel free to contact.
    Featured Skill C#
    Next.js
    TypeScript
    FastAPI
    Microservice
    Node.js
    MongoDB
    React
    Java
    Python
    Android
    MERN Stack
  • $30 hourly
    • OOP – CLASS DESIGN, ABSTRATION, ENCAPSULATION, INHERITANCE • C#.NET, VB.NET, C/C++, PYTHON • WINFORM – SYNCFUSION, DEVEXPRESS • WPF – XAML, MVVM, PRISM • WEB – Blazor, ASP.NET MVC, ASP.NET Core • .NET – ENTITY FRAMEWORK, NuGet, ADO.NET • IoT Platform GUI, IoT Platform Service • TASK, ASYNC&AWAIT, Multi-Threading, Parallel Programming, LINQ, LAMBDA • DESIGN PATTERN –SINGLETON, DI/IoC, FACTORY, BUILDER, MEDIATOR, ETC • PLC OPEN (IEC61131-3) – ST, SFC, FB, LD, State Machine • STRATON, CODESYS, BECKHOFF (TWINCAT3) • WCF, MQTT, RabbitMQ, gRPC, REST API(Swagger API) • Industrial Protocol – MODBUS TCP & RTU, ETHERCAT, DEVICENET, OPC UA, Classic OPC, Secs&Gem • MACHINE INTERFACE – Focas(Fanuc), MML(Makino), DNC(Heidenhein), MT Connect(Standard) • SMTP, FTP, SMB, SSH, ETC • ETHERNET, ETHERCAT, RS485, RS422, RS232C • DATABASE – MS-SQL, MySQL, SQLITE, MongoDB, REDIS ; Dapper, EF Core • Industrial PLC & SCADA & HMI • SENSORS & CONTROLLER, PID Control ; Barcode/QR/DataMatrix, Arduino(ESP32) ; NFC, RFID • MOTION & DRIVE (Stepping, Servo, Inverter) • XML, CSV, JSON, YAML, … • Windows / Linux(Ubuntu) • SVN, GitHub, BitBuicket ; Jira, Axosoft ; Teamcity, Jenkins • Visual Studio, Visual Studio Code, PyCharm • P&ID, Electrical document investigation • IT/OT Network
    Featured Skill C#
    CNC Programming
    Azure IoT HuB
    REST API
    Linux
    Blazor
    ASP.NET
    MQTT
    PLC
    Web Application
    XAML
    Desktop Application
    API Development
    Database
    Modbus
  • $15 hourly
    I`m a software developer that has a lot of experience for various domain. Basically, I want a job of Full-stack Web development but other software development jobs can be handled. My skills of programing languages, frameworks and databases are below. - Java, Python, C# and JavaScript - Spring MVC, Spring Boot, Flask, Django, FastAPI, ASP.NET, React, Node.js, vue.js, and jQuery - Oracle, MySQL, MariaDB, MSSQL and other databases.
    Featured Skill C#
    ASP.NET
    FastAPI
    Django
    Flask
    Spring MVC
    Spring Boot
    Python
    React
    JavaScript
    Java
    Web Development
  • $22 hourly
    Hello! I am a freelance developer specializing in a wide range of projects including web/app development, bug fixing, and code review. With hands-on experience in automation, data processing, and scalable solutions, I deliver fast and reliable results. Key Skills - Web/mobile application development (React, Vue, Node.js, Django, etc.) - Bug fixing and code optimization - Automation scripts and tool development - Data analysis and processing - Clean code and effective communication I always prioritize understanding clients’ needs and providing prompt, accurate solutions. From minor bug fixes to complex projects, I aim to be a trustworthy development partner you can rely on.
    Featured Skill C#
    C++
    C
    Kotlin
    Python
    JavaScript
    Java
    Scripting
    Web Development
    Script
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