Core Engineer

About Us
Ordo One is a dynamic startup based in Stockholm, Sweden, focused on developing cutting-edge, high-performance trading systems for professional trading firms. Our entire technology stack, from the macOS frontend to the Linux-based server side, is built using Swift. With a proven track record of successfully bringing multiple similar products to market, we’re confident that we will execute our vision for a next-generation trading system. Currently a team of 10, we are looking to expand as we grow and scale our highly available platform.

Why Ordo One?

• Join a small, focused team with a proven track record building innovative products.
• Tackle high-impact projects in a performance-critical trading environment.
• Shape the future of trading technology using a fully Swift-based stack.
• Leverage the latest tools and platforms, including the latest versions of Swift, SwiftUI and macOS and in the future support emerging technologies like Apple Vision Pro.
• Help shape our scalable, highly available trading platform while contributing to the Swift open source community.

Core Engineer

You will have the opportunity to work on highly available, high-performance server-side components and frameworks that support our platform in close cooperation with the rest of our core engineering team.

Key Responsibilities

• Design, implement and maintain core infrastructure components and libraries.
• Write unit and integration tests
• Contribute to Open Source projects relevant to Ordo One
• Build scalable high-performance server-side software using Swift on Linux and macOS.

If you’re passionate about quality, automation, and building reliable high-performance systems, we’d love to hear from you.