Senior Rust Engineer at Keyrock

Since our founding in 2017, Keyrock has evolved from a small team of three into a dynamic group of over 30 professionals. As a premier European liquidity provider and market maker, we specialize in building advanced algorithmic trading technology for the digital asset sector. We are proud to be one of Belgium’s fastest-growing fintech companies, backed by venture capital and trusted by a global client base. We are currently looking for a Senior Rust Engineer to join our Options Business Unit, specifically focusing on the Americas timezone, to help us scale our infrastructure and refine our trading systems.

What you'll be doing

• You will build and maintain essential internal and external tools that support our daily trading operations.
• You will integrate various APIs from banks, brokers, and cryptocurrency exchanges into our existing infrastructure.
• You will manage the setup and deployment of trading algorithms while implementing complex financial logic across our microservices.

What you'll bring

To succeed in this role, you should have at least 3 years of professional programming experience and a deep understanding of low-level system architecture. We are looking for someone who possesses the following qualifications:

• Strong proficiency in Rust and experience working with SQL databases.
• A solid grasp of the full web technology stack, including HTTP, REST, and Websocket APIs.
• Experience with functional or component-based testing.
• A basic understanding of financial markets, order books, and trading concepts.
• Strong communication skills and the ability to maintain a high-level view of trading strategies.
• Fluency in English.
• Bonus points if you have experience with Node.js, Python, or developing options trading systems.

What you'll get

We offer a flexible work environment that prioritizes your autonomy and professional growth. You can expect the following:

• Complete flexibility in your time management and the ability to work remotely.
• The opportunity to work within a team dedicated to excellence and an entrepreneurial spirit.
• A supportive culture that values merit, performance, and inclusivity.

Our recruitment process is designed to be transparent and typically spans 3 to 6 weeks. It begins with an initial HR interview, followed by a technical discussion with our leadership team. You will then complete a take-home technical challenge, which we will review together during a debrief session to discuss your thought process and approach.