Hire the Best QT Developers

C++ / Qt engineer, 20+ years. I build the software that runs machines and instruments: embedded Linux firmware, Qt/QML operator HMIs, and the cross-platform desktop workbench engineers use to configure, calibrate and log. RECENT WORK - HPLC syringe pump - control software for an analytical laboratory instrument. - Firmware, control suite and workbench for the Multistage cable-stripping machine. - ScanScore / Forte / Bandora - 8 years on cross-platform music-notation software in Qt: optical score recognition, MIDI, PDF export. - Debian POS server - multithreaded C++ service, PostgreSQL, ESC/POS thermal printing, deployed onsite. 18,000 hours on Upwork at 100% Job Success, Top Rated Plus. WHAT YOU GET I lead a small Lviv team - firmware, HMI and desktop under one contract - and I stay hands-on in C++/Qt myself. You talk to me, not to an account manager. - Embedded & HMI: STM32, Arduino, embedded Linux, Qt/QML touch panels, industrial operator screens. - Desktop: cross-platform Qt for Linux and Windows; C#/.NET (WPF, WinForms, DevExpress) when the Windows side needs it. - Data: PostgreSQL, MS SQL, multithreaded C++ services, reporting, printing, installers. HOW I RUN PROJECTS - YOU SEE EVERYTHING Offshore teams fail on visibility, not on code. The process is built to remove that risk: - Private Jira server - you get an account and watch the board in real time. - Every code change is linked to its Jira task. Nothing lands untracked. - Code lives on our BitBucket Git server; you get access. - Every reported developer hour carries the developer's own comment explaining it. - Weekly and monthly reports, generated - not improvised. - A working demo build every week. You judge progress by running it, not by reading a status update. Scope is agreed as Work / Time / Budget with defined milestones before anything starts. Background: SoftServe 2002-2008, developer to tech lead; then my own team since 2014. ALSO AVAILABLE: legacy Windows rescue - MFC, Win32, COM/ATL, Visual C++ 6.0, WinForms/.NET. The desktop applications other developers won't touch. I have been maintaining and modernizing them since 2002. Send me the machine, the instrument or the old application - I will tell you honestly whether we are the right fit.

**Skills**: API Integration 🚀, .NET Core Development 💻, Angular Dashboards 📊, SQL Server Optimization 📈, Data Migration 🗄️ My name is Sheheryar, and I specialize in building and fixing enterprise-grade backend systems. With over 5 years of experience and several completed projects, I ensure efficient process automation and robust data protection. I am proficient in integrating third-party APIs, migrating complex data, and constructing secure multi-tenant dashboards from scratch. My goal is to deliver production-ready code efficiently and transparently. My expertise includes API integration, backend bug fixes, secure business dashboard creation, and database engineering, with a focus on optimizing performance and ensuring data security. 🚀 **API Integration**: Seamlessly connect your software with CRMs, Payment Gateways, and Public APIs using robust .NET Worker Services and RESTful APIs. 💻 **.NET Core Development**: Develop enterprise-grade backend systems with C#, .NET Core 8/9, and Entity Framework to ensure stability and scalability. 📊 **Angular Dashboards**: Craft custom admin panels and POS/HR systems with Angular and Role-Based Access Control (RBAC) to enhance system usability and security. 📈 **SQL Server Optimization**: Optimize SQL Server performance with T-SQL query enhancements, complex data extraction, and strategic schema design. 🗄️ **Data Migration**: Smoothly migrate data, whether from old SQL .bak files or other sources, maintaining data integrity and minimizing downtime. Let’s fix your immediate problem today. Send me your requirements, and I’ll provide a quick 1-minute video demonstration or a prototype to show how I would solve it.

* 11 years of writing performant and reliable C++ code * 3 years of experience with Golang * Good experience in developing desktop applications employing GPU and VR capabilities * Ability to debug complex scenarios and work with legacy code without breaking anything * Fluent English

I build high-performance interactive 3d applications using Unity game engine. My work spans Interactive Application, Digital Twins, 3D Simulations, Gamification, Games, AR Applications, 3D Web configurators, Product Configurators, Enterprise tools, Industrial Application, Mobile Apps and advanced interactive experiences for startups, businesses, and large organizations. For over a decade, I’ve delivered production-ready Unity projects across mobile, desktop, WebGL, and XR devices including iOS/Android, Oculus Quest, HTC Vive, and HoloLens. I’m comfortable joining an existing team, taking over a legacy project, or building a complete module from scratch with clean architecture and optimized performance. Core Expertise - Unity Development - SaaS App Development - Full Stack - AI Integration - Interactive 3D applications and simulations - Mobile/desktop/WebGL games & experiences - Gameplay systems, physics, AI, multiplayer foundations - Comprehensive optimization & performance troubleshooting - Bug fixing, refactoring, legacy code recovery - C# scripting, UGUI, Cinemachine, Addressables, Asset Bundles - 3D and virtual walkthrough video generation AR/VR Development - ARKit, ARCore, AR Foundation, Vuforia - Room-scale VR and PCVR (Quest, Vive) - Product visualization & 3D configurators - Spatial computing workflows - 3 commercial AR apps published on google play Digital Twins - Real-time monitoring using Unity + IoT pipelines - Industrial simulations with live data (Kafka, MQTT, REST, AWS) - AEC visualization and construction workflows Browser-based 3D configurators (WebGL) Web Games and Android Games published on play store and itch Supporting Tech (for full-pipeline delivery) Python/C# automation, data workflows, GIS processing Web integrations (PHP, JavaScript, NodeJS, .NET, REST APIs) Databases: MySQL, SQLite, MS SQL Server, Firebase Selected Achievements - Built a Unity AR MVP (RoomPlan + ARKit) for the retail furniture industry that helped a startup secure pre-seed investment - Led the development of a SaaS digital twin platform that improved 3D digital twin project delivery and client retention. - Creating an AR workbook app for Grade 4 students. - Developed a 200+ km streaming WebGL environment using asset bundles for a 3D railway line project. - Built digital twins for industrial sites, including power-plant monitoring systems - Delivered factory/building digital twin PoCs improving operational visibility - Published AR apps in healthcare, education, and retail - Automated workflows with Python/C#, increasing team efficiency by 25–30% - Designed and developed a 3D talking avatar solution for interactive services - Created Unity WebGL 3D Configurator for Room Apartments and Car Configurator Tech Stack Unity, C#, UGUI, Cinemachine, Addressable, Asset Bundles, WebGL, ARKit, ARCore, AR Foundation, RoomPlan API, Vuforia, Firebase, iOS/Android, Quest/Vive integrations C#, Python, JavaScript, PHP WordPress (custom development), ASP NET MVC, .NET Core REST APIs, JSON, SQL MySQL, MS SQL Server, SQLite What You Get A senior Unity engineer with 11+ years building real, shipped products. Technical leadership experience with Product Development Acumen Solid architectural thinking Production-grade code Ability to handle Unity + backend + integrations Fast onboarding into existing teams Clear communication and predictable delivery Services Unity development & performance optimization AR/VR application development 3D Industrial Applications Digital twin systems WebGL configurators 3D walkthrough and construction animation videos Workflow automation (Python/C#/API-based tools) Selective web development (WordPress / .NET) for Unity-connected systems Availability & Rate Hourly: $35/hr If you have a Unity project that needs reliability, stability, and someone who knows how to ship, I can help. Send your requirements and I’ll map out a clean plan and timeline.

With more than 20 years of experience in the IT industry, I have developed a solid foundation in software architecture, design, and development. My expertise spans across multiple programming languages and frameworks, including C/C++, Qt/QML, C#/.NET, JavaScript, Node.js, Python, and Golang, allowing me to create robust web services, backend systems, as well as client-server and rich desktop and mobile applications. My background also includes strong capabilities in database architecture and design, specifically with PostgreSQL. I also possess extensive experience working with REST APIs, MS Bot Framework, and neural network algorithms. My proficiency in managing foreign customer relationships, along with my excellent command of English and negotiation skills, make me a valuable asset to any team. I am a self-motivated leader with a penchant for project management. I have a proven track record of effectively solving complex problems and working well in team environments. I enjoy proposing and implementing universal solutions that benefit everyone involved, and I am committed to maintaining my physical fitness in order to optimize my work performance.

I am a self-learner software engineer. I love designing and making software more than anything else. I have worked on a lot of software projects professionally, during my studies, and as a hobby. I can use a wide variety of programming languages and platforms. Whatever your needs are, I can make them real quickly and efficiently.