Senior Software Engineer - C++

At Shapr3D, we’re transforming how industries design and innovate. From automotive and aerospace to consumer tech and industrial design, our platform powers some of the boldest ideas across industries that shape 16% of the global GDP. Our multi-platform product has earned the Apple Design Award and is regularly featured in Apple Keynotes. With Series B backing and a rapidly growing user base, we’re scaling fast - and this is your chance to be part of the journey.

Interested in finding out what Shapr3D and Budapest have to offer? Check out this page!

“Our focus is on making sure that all our teams are empowered and incentivized to make decisions independently. People aren’t afraid of taking risks, setting ambitious goals, and in some cases, failing. We know how to learn from our mistakes.” - Ákos Kapui, Chief Technology Officer

Why this role?

Shape the future of CAD. As a Senior Software Engineer, you’ll contribute to the backbone of Shapr3D’s next-gen CAD engine. Your work will directly impact millions of users globally, transforming how they design and manufacture.

Drive innovation on a global scale. Play a key role in building a multi-platform, world-class application that helps companies revolutionise their industries.

Join at a pivotal moment: With ambitious plans and significant growth, you’ll be part of a mission-driven team creating solutions that define the future of design.

What you'll do

• Build and enhance our cutting-edge CAD features, creating an unparalleled user experience across platforms
• Develop world-class, testable, and maintainable code that continuously pushes boundaries
• Collaborate closely with cross-functional teams to align technical innovations with business goals
• Play a key role in evolving our technical architecture and shaping the engineering excellence that defines Shapr3D

Our tech stack

• Core CAD Engine: Written in C++20
• iPadOS/macOS: Built in Swift
• Windows: Developed with C# and XAML, shipped as Universal Windows Apps (UWP)
• Rendering Engine: Uses Metal APIs on Apple devices and DirectX11 on Windows

What you'll bring

• Strong proficiency in modern C++ and a proven track record of delivering high-quality software
• Solid experience in architectural design and a strong understanding of algorithms, linear algebra, and geometry
• A passion for building scalable, robust solutions that delight users
• Bonus: Experience in mobile app development (especially iOS) or working in the CAD industry

Why you'll love working here

Ownership & impact – Be part of a startup shaping the future of design and manufacturing, with equity options.

Relocation support – Full relocation package if you’re moving to Budapest, one of Europe’s fastest-growing tech hubs.

Learning & growth – Work alongside some of the industry’s best minds and continuously evolve your skills.

Comprehensive benefits – Private healthcare, life insurance, gym membership, and more.

Office-first culture – We believe in in-person collaboration to build something extraordinary.

Shapr3D is a Budapest-based CAD company building a modern, multi-platform 3D design tool used by hundreds of thousands of engineers and designers worldwide.

The product runs on iPadOS, macOS and Windows on top of an in-house C++ CAD engine.