CODEFUSION

CODEFUSION is a Polish software house founded in 2010, based in Opole. The company grew from a fusion of two individual software practices that had been operating since 2007. Today it operates across 30+ employees—20+ programmers, 4 testers, 3 UX designers, and management—and works on intercontinental projects. The team is led by Jacek Jarczak (programmer-designer with extensive web and UX experience) and Marcin Kawalerowicz (software developer and author of "Continuous Integration in .NET" published by Manning; holds a PhD in Computer Science). CODEFUSION specializes in general software engineering across desktop, web, mobile, and hardware control systems, with particular strength in interoperability between managed (.NET/C#) and native (C++/Clarion) code.

Services and capabilities

CODEFUSION's core offering spans several domains. In legacy system modernization, they bridge old codebases (C, C++, Delphi, Visual Basic, Clarion) with new .NET functionality using C++/CLI wrappers and Unmanaged Exports—an approach they've proven in production systems at a large Swiss credit bank. For the financial sector, they build systems on Oracle and Microsoft .NET, handling event-driven data processing via Windows Services and SOAP/WCF communication. They've worked with banks, leasing firms, and car manufacturers on enterprise integration.

On mobile development, CODEFUSION delivers native applications for Android (Java), iOS (Objective-C), Windows Phone (C#), and web-based solutions. Recent projects include leasing and credit applications and transaction authorization systems. Web development covers traditional sites to Angular-based applications; they build web shops on Magento and manage content via WordPress and Joomla. Cloud work includes Azure, Machine Learning, and IoT projects. They also develop AI-integrated assistants using retrieval-augmented generation (RAG) and the Semantic Kernel library—interactive guides that reduce support burden by walking users through app features and executing tasks.

For industry and manufacturing, CODEFUSION works with partners like Stuttgart-based GBUmbH on process optimization. They build geo-data visualization systems that interpret GPS and RFID signals in real time, displaying results on Windows Forms and WPF dashboards. In tourism, they've integrated booking systems across multiple technologies (Microsoft .NET, Ruby on Rails, PHP) for agents across Poland and abroad, using WCF to deliver distributed data to various client configurations.

Notable work

CODEFUSION has shipped work across multiple verticals. In finance, they integrated a BPMN engine into a legacy Clarion application for a large Swiss credit bank—a production system still running. They created a mobile client application for transaction systems deployed across four mobile platforms. For civil engineering, they built software that calculates concrete constructions. In tourism, they deployed multi-technology booking and order management systems for Almatur-Opole, coordinating agents across countries. They've also developed InGame HR, a gamified recruitment platform that uses interactive games to engage job candidates and rank them via in-game surveys.

How they work

CODEFUSION operates as a project-based firm with a pragmatic approach to engagement. The company emphasizes self-steering teams, careful planning, and organic growth rather than aggressive recruitment tactics. They do not publish explicit hourly rates or fixed-price models on their site, but their model appears geared toward longer-term partnerships—they retain 3+ clients for over 5 years. The team communicates across time zones from Opole (Coordinated Central European Time). The company has published a brochure with more engagement details, though specifics are not detailed in public material.

Team and credentials

The company was formed by two experienced programmers and designers with roots at Opole University of Technology. It now comprises 30+ staff members broken down as: 20+ developers, 4 testers, 3 UX designers, and management. Marcin Kawalerowicz holds a PhD in Computer Science and is a published author and conference speaker on software engineering and CI/CD. CODEFUSION received its first Clutch reviews in May 2025. The company is active in local tech community engagement, co-organizing opole.dev (a series of meetups for Opole developers) and running a Summer Internship Program. No ISO certifications, SOC 2, or major partner badges (AWS, Microsoft, Google) are mentioned in available material.

Products

Beyond custom development, CODEFUSION offers InGame HR, a standalone product—a gamified job recruitment platform accessed via ingame.hr. It allows employers to contact candidates through interactive games and rank applicants via in-game surveys.