---
title: 'Rust Engineer - Trading Systems at Keyrock'
canonical: 'https://feeny.ai/job/rust-engineer-trading-systems-keyrock-brussels-rzc8ga2e1ppn'
type: 'job'
last_seen: '2026-09-06'
---

# Rust Engineer - Trading Systems at Keyrock

- **Company:** Keyrock
- **Location:** Brussels, Belgium
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-07-15
- **Last confirmed live:** 2026-09-06
- **Apply:** https://jobs.ashbyhq.com/keyrock/7329eacf-83d2-419c-b519-8288659bf71b

## Job description

## RUST ENGINEER - TRADING SYSTEMS

## ABOUT KEYROCK

Since our beginnings in 2017, we've grown to be a leading change-maker in the digital asset space, renowned for our partnerships and innovation.

Today, we rock with over 200 team members around the world. Our diverse team hails from 42 nationalities, with backgrounds ranging from DeFi natives to PhDs. Predominantly remote, we have hubs in London, Brussels, Singapore and Paris, and host regular online and offline hangouts to keep the crew tight.

We are trading on more than 80 exchanges, and working with a wide array of asset issuers. As a well-established market maker, our distinctive expertise led us to expand rapidly. Today, our services span market making, options trading, high-frequency trading, OTC, and DeFi trading desks.

But we’re more than a service provider. We’re an initiator. We're pioneers in adopting the Rust Development language for our algorithmic trading, and champions of its use in the industry. We support the growth of Web3 startups through our Accelerator Program. We upgrade ecosystems by injecting liquidity into promising DeFi, RWA, and NFT protocols. And we push the industry's progress with our research and governance initiatives.

At Keyrock, we're not just envisioning the future of digital assets. We're actively building it.

## MISSION STATEMENT

We are seeking a Senior Rust Engineer with deep trading systems experience and strong AWS knowledge to join our core Capital Markets division. Candidates with a passion for the Rust ecosystem and a proven track record designing, building, and operating mission-critical trading systems will be at a significant advantage.

As part of the engineering team in Capital Markets, you will take ownership of high-impact trading infrastructure, set technical direction in your domain, and drive continuous improvement in system performance, reliability, and operability. You will join a highly-profitable, fast-paced division within Keyrock, where you will be expected to make a senior individual-contributor impact while collaborating with a global, fully-remote team. This role is open to candidates located in European time zones.

## JOB DESCRIPTION

- Design, develop, and optimise low-latency, mission-critical trading systems
- Own key trading stack components end-to-end — from architecture through to production operation
- Collaborate closely with quants, traders, and engineers to deliver solutions that improve trading performance and resilience
- Maintain and evolve trading infrastructure with a focus on performance, stability, observability, and operational excellence
- Troubleshoot complex production issues across exchange connectivity, execution, and market data handling
- Drive engineering standards through technical leadership, code reviews, and mentoring
- Embrace agentic engineering principles: leverage AI-assisted workflows, drive automation of operational tasks, and help evolve the team's agentic tooling
- Contribute to functional, component, and production-readiness testing for critical trading components

## BACKGROUND AND EXPERIENCE

## TECHNICAL SKILLS

- Production-grade Rust experience building high-performance, concurrent systems; proficiency with Tokio is a strong advantage
- Hands-on experience in a systematic trading environment (HFT, Market Making, Quantitative Trading, or similar), with solid understanding of execution, market data, and operational risk
- Strong AWS and Linux expertise, including cloud infrastructure trade-offs for latency-sensitive workloads, shell scripting, debugging, and production troubleshooting
- Proficiency in Python or other scripting languages for strategy development, automation, and operational tooling
- Deep familiarity with trading system protocols (FIX, REST, WebSocket), exchange connectivity, and market data feeds
- Solid grasp of low-latency networking: TCP/UDP, packet and latency path analysis, dedicated network infrastructure, and kernel bypass techniques (DPDK)
- Familiarity with agentic engineering tools and concepts: LLMs, MCP APIs, AI-First IDEs (e.g. Cursor, Claude Code), harness engineering, and workflow automation
- Ability to make sound architectural decisions, articulate trade-offs clearly, and guide implementation across complex systems

## SENIORITY & COMPETENCIES

- Ownership & Reliability – Take full responsibility for your work. Deliver high-quality service, meet deadlines, and follow through on commitments. Anticipate and proactively address potential issues before they arise.
- Initiative & Problem-Solving – Approach challenges with a problem-solving entrepreneurial mindset. Make sound, independent judgments and take the initiative to drive solutions rather than waiting for instructions.
- Operational Diligence – Respond strategically to technical and operational challenges, ensuring robust and reliable trading infrastructure while instilling confidence in the team’s processes.
- Technical Leadership – Influence system design, raise engineering standards, mentor other engineers, and help the team make pragmatic, high-quality technical decisions.
- Curiosity & Growth Mindset – Continuously seek to improve your technical skills and knowledge. Stay ahead of industry trends and take the initiative to practice and explore new technologies that excite you.
- Agentic Engineering – Embrace AI-assisted workflows and autonomous agents, pushing the boundaries of what engineering teams can achieve through intelligent automation.
- Excellent Communication Skills with a team player mindset, collaborating within a fully remote global team.

## OUR RECRUITMENT PHILOSOPHY

We value self-awareness and powerful communication skills in our recruitment process. We seek fiercely passionate people who understand themselves and their career goals. We're after those with the right skills and a conscious choice to join our field. The perfect fit? A senior engineer and crypto enthusiast who’s driven, collaborative, acts with ownership, raises the bar for others, and delivers solid, scalable outcomes.

## OUR OFFER

- A competitive salary package
- Autonomy in your time management thanks to flexible working hours and the opportunity to work remotely
- The freedom to create your own entrepreneurial experience by being part of a team of people in search of excellence

As an employer we are committed to building a positive and collaborative work environment. We welcome employees of all backgrounds, and hire, reward and promote entirely based on merit and performance.

Due to the nature of our business and external requirements, we perform background checks on all potential employees, passing which is a prerequisite to join Keyrock.

https://keyrock.com/careers/

## About Keyrock

## Company Overview
- **One-liner**: Keyrock is a global digital asset investment firm that provides institutional-grade market making, OTC trading, options, and asset management services to tokenised economies.
- **Entity Type**: Private (funded: Seed 2018, Series A 2020, Series B 2022, Series C 2026)
- **Headquarters**: Brussels, Belgium
- **Founded**: 2017
- **Founders**: Kevin de Patoul (CEO), Juan David Mendieta (CSO), Jeremy de Groodt (CTO)

## Core Business
- **Primary industry**: Digital asset financial services (crypto market making, trading, liquidity provision, asset management)
- **Target customers**: B2B – institutional investors, crypto foundations, corporations, and token projects
- **Mission**: “Changing the course of finance” – building the future of financial services with digital assets, combining performance with integrity. [keyrock.com](https://keyrock.com/)

## Products & Services
- **Market Making**: Provides liquidity and tight spreads across 85+ exchanges and 1,400 markets, optimising pricing and reducing slippage. [keyrock.com](https://keyrock.com/)
- **OTC Trading**: Facilitates large block trades for institutions outside of public order books.
- **Options**: Digital asset options desk for hedging and yield strategies.
- **Asset Management**: Institutional-grade, quant-led investment strategies (traditional funds and onchain alternatives) designed for the tokenised economy.
- **Solutions**: Tailored liquidity and infrastructure for token projects, including launch support and custom algorithms.
- **Insights**: Proprietary research and market intelligence to guide decision-making.

## Market Standing
- **Valuation/Market Cap**: The company states a valuation of $1.1 billion (per CEO biography on company site). [keyrock.com/about-us/](https://keyrock.com/about-us/)
- **Key Metric**: Total funding of $78.1 million across 5 rounds. Annual revenue estimated at $10 million. [be.linkedin.com](https://be.linkedin.com/company/keyrock)
- **Notable Investors**: Volta Ventures (Seed/Series A), SIX FinTech Ventures (Series A), Middlegame Ventures (Series A), Ripple (Series B), SC Ventures (Series C), Tenity. [be.linkedin.com](https://be.linkedin.com/company/keyrock)
- **Growth Signals**: 220+ employees across 36 countries; opened OTC and Options desk in 2023; team grew from 100+ (2022) to 220+ (2026); acquired Turing Capital Management and Fija Finance; Series C round in 2026 led by SC Ventures. [keyrock.com/about-us/](https://keyrock.com/about-us/), [be.linkedin.com](https://be.linkedin.com/company/keyrock)

## Competitive Advantages
- **Pioneering longevity**: Operating since 2017, before the major crypto bull runs, giving it deep experience and battle-tested algorithms.
- **Proprietary technology**: In-house V1/V2 market making algorithms and custom infrastructure that process billions of dollars daily.
- **Hybrid talent pool**: Combines crypto natives with traditional finance veterans from Goldman Sachs, Bank of America Merrill Lynch, UBS, and Roland Berger.
- **Global reach**: Integrated with 85+ exchanges and 1,400 markets, covering both centralised and decentralised venues.
- **Full‑service offering**: From market making and OTC to asset management and research – a one‑stop shop for institutional digital asset needs.

## Strategic Focus
- **Onchain expansion**: Acquisitions (Fija Finance) and product development to deepen DeFi and tokenised asset capabilities.
- **Institutional scaling**: Building out corporate sales and asset management for the growing tokenised economy.
- **Long‑term infrastructure**: Investing in technology and compliance to support mainstream institutional adoption.

## Why Work Here
- **Remote‑first culture**: Based in the EU, UK, and Switzerland, with team members across 36 countries and hubs in Brussels, London, Zurich, New York, and more. [keyrock.com](https://keyrock.com/)
- **Fast‑paced growth**: Team has more than doubled in size since 2022, offering rapid career progression and exposure to cutting‑edge digital asset markets.
- **Cross‑disciplinary teams**: Work alongside engineers (Rust, data), traders, compliance experts, and financial strategists in a flat, high‑ownership environment.
- **Active hiring**: Over 260 open positions at the time of writing, including engineering, sales, compliance, and data roles. [jobs.ashbyhq.com/keyrock](https://jobs.ashbyhq.com/keyrock)
- **Perks & culture**: Not explicitly listed, but the company emphasises excellence, integrity, and long‑term thinking. Benefits typical of well‑funded fintech/crypto firms (equity, remote flexibility, learning budget likely).

## Sources
1. [keyrock.com](https://keyrock.com/) – Main website, corporate overview, product descriptions, mission.
2. [keyrock.com/about-us/](https://keyrock.com/about-us/) – Company history, team bios, funding milestones, valuation claim.
3. [keyrock.com/careers/](https://keyrock.com/careers/) – Careers page with open roles and culture descriptions.
4. [jobs.ashbyhq.com/keyrock](https://jobs.ashbyhq.com/keyrock) – Active job listings (266 as of search).
5. [be.linkedin.com/company/keyrock](https://be.linkedin.com/company/keyrock) – LinkedIn profile with financials, funding rounds, employee growth, and industry classification.

## Other roles at Keyrock

- [Head of Marketing (Director)](https://feeny.ai/job/head-of-marketing-director-keyrock-new-york-qbv1y3vnqk31) — New York, NY
- [Head of Marketing (Director)](https://feeny.ai/job/head-of-marketing-director-keyrock-chicago-43n6tktcfwm7) — Chicago, IL
- [Head of Marketing (Director)](https://feeny.ai/job/head-of-marketing-director-keyrock-london-mwv9101s27fz) — London, United Kingdom
- [Senior Rust Engineer - High Frequency Trading (HFT)](https://feeny.ai/job/senior-rust-engineer-high-frequency-trading-hft-keyrock-brussels-7g0anmpzwfa5) — Brussels, Belgium
- [Senior Data Engineer](https://feeny.ai/job/senior-data-engineer-keyrock-brussels-dtn7ms1yc1cf) — Brussels, Belgium
- [Compliance Officer / MLRO Switzerland & Liechtenstein](https://feeny.ai/job/compliance-officer-mlro-switzerland-liechtenstein-keyrock-zurich-wgasbt5sqpce) — Zurich, Switzerland
- [Head of Engineering - Options](https://feeny.ai/job/head-of-engineering-options-keyrock-new-york-q2w7wytkjk9c) — New York, NY
- [Engineering Lead- Options](https://feeny.ai/job/engineering-lead-options-keyrock-new-york-athhwsfrh210) — New York, NY