Company: Keyrock
Role: Senior Rust Engineer - High Frequency Trading (HFT)
Department: Engineering & Technology (Capital Markets Division)
Employment Type: Full-time
Location Type: Remote (European Time Zones)
Locations: Brussels; Amsterdam; Antwerp; Athens; Berlin; Budapest; Copenhagen; Dublin; Eindhoven; Frankfurt; Geneva; Istanbul; Krakow; Lisbon; London; Luxembourg; Madrid; Manama; Milan; Paris; Porto; Prague; Rome; Rotterdam; Sofia; Tallinn; Vienna; Warsaw; Zagreb; Zug; Zurich

Company Overview

Digital asset market maker founded in 2017 with over 200 team members across 42 nationalities.
Active across 80+ exchanges offering market making, options trading, high-frequency trading (HFT), OTC, and DeFi trading desks.
Global remote workforce with physical hubs in London, Brussels, Singapore, and Paris.

Role Overview

Senior individual contributor role within the core Capital Markets division responsible for high-impact, low-latency trading infrastructure.
Focuses on architectural ownership, performance optimization, exchange connectivity, and system resilience for mission-critical trading components.

Key Responsibilities

Design, develop, and optimize low-latency, mission-critical trading systems.
Own key components of the trading stack end-to-end (from architecture through production operations).
Collaborate with quants, traders, and engineers to enhance trading performance and resilience.
Maintain trading infrastructure with emphasis on performance, stability, observability, and operational excellence.
Troubleshoot complex production issues involving exchange connectivity, execution systems, and market data feeds.
Set technical direction, enforce engineering standards, conduct code reviews, and mentor engineers.
Implement agentic engineering principles: utilize AI-assisted workflows, automate operational workflows, and expand agentic tooling.
Execute functional, component, and production-readiness testing for critical trading components.

Requirements

Technical Qualifications:

Production-grade Rust experience building high-performance, concurrent systems (proficiency with Tokio is an advantage).
Hands-on experience in systematic trading environments (HFT, Market Making, Quantitative Trading) with practical knowledge of execution, market data, and operational risk.
Strong AWS and Linux engineering expertise, including latency-sensitive cloud configurations, shell scripting, debugging, and production troubleshooting.
Proficiency in Python (or related scripting languages) for strategy development, tooling, and workflow automation.
Deep familiarity with trading protocols (FIX, REST, WebSocket), exchange connectivity, and real-time market data handling.
Understanding of low-latency networking concepts: TCP/UDP, latency path analysis, dedicated network infrastructure, and kernel bypass techniques (e.g., DPDK).
Familiarity with agentic engineering tools and concepts: LLMs, MCP APIs, AI-first IDEs (e.g., Cursor, Claude Code), test harness engineering, and workflow automation.

Competencies & Seniority:

End-to-end ownership and proactive operational diligence.
Independent technical leadership and architectural decision-making.
Strong written and verbal communication in a distributed, remote team setting.

Compensation & Benefits

Competitive salary package.
Remote work arrangement with flexible working hours.
Collaborative international team culture.

Screening & Policies

Background Check: All offers are contingent upon the successful completion of standard background checks.
Equal Opportunity: Merit- and performance-based hiring and promotion across all candidate backgrounds.

Company Overview

Digital asset market maker founded in 2017 with over 200 team members across 42 nationalities.
Active across 80+ exchanges offering market making, options trading, high-frequency trading (HFT), OTC, and DeFi trading desks.
Global remote workforce with physical hubs in London, Brussels, Singapore, and Paris.

Role Overview

Senior individual contributor role within the core Capital Markets division responsible for high-impact, low-latency trading infrastructure.
Focuses on architectural ownership, performance optimization, exchange connectivity, and system resilience for mission-critical trading components.

Key Responsibilities

Design, develop, and optimize low-latency, mission-critical trading systems.
Own key components of the trading stack end-to-end (from architecture through production operations).
Collaborate with quants, traders, and engineers to enhance trading performance and resilience.
Maintain trading infrastructure with emphasis on performance, stability, observability, and operational excellence.
Troubleshoot complex production issues involving exchange connectivity, execution systems, and market data feeds.
Set technical direction, enforce engineering standards, conduct code reviews, and mentor engineers.
Implement agentic engineering principles: utilize AI-assisted workflows, automate operational workflows, and expand agentic tooling.
Execute functional, component, and production-readiness testing for critical trading components.

Requirements

Technical Qualifications:

Production-grade Rust experience building high-performance, concurrent systems (proficiency with Tokio is an advantage).
Hands-on experience in systematic trading environments (HFT, Market Making, Quantitative Trading) with practical knowledge of execution, market data, and operational risk.
Strong AWS and Linux engineering expertise, including latency-sensitive cloud configurations, shell scripting, debugging, and production troubleshooting.
Proficiency in Python (or related scripting languages) for strategy development, tooling, and workflow automation.
Deep familiarity with trading protocols (FIX, REST, WebSocket), exchange connectivity, and real-time market data handling.
Understanding of low-latency networking concepts: TCP/UDP, latency path analysis, dedicated network infrastructure, and kernel bypass techniques (e.g., DPDK).
Familiarity with agentic engineering tools and concepts: LLMs, MCP APIs, AI-first IDEs (e.g., Cursor, Claude Code), test harness engineering, and workflow automation.

Competencies & Seniority:

End-to-end ownership and proactive operational diligence.
Independent technical leadership and architectural decision-making.
Strong written and verbal communication in a distributed, remote team setting.

Compensation & Benefits

Competitive salary package.
Remote work arrangement with flexible working hours.
Collaborative international team culture.

Screening & Policies

Background Check: All offers are contingent upon the successful completion of standard background checks.
Equal Opportunity: Merit- and performance-based hiring and promotion across all candidate backgrounds.

Company Overview

Digital asset market maker founded in 2017 with over 200 team members across 42 nationalities.
Active across 80+ exchanges offering market making, options trading, high-frequency trading (HFT), OTC, and DeFi trading desks.
Global remote workforce with physical hubs in London, Brussels, Singapore, and Paris.

Role Overview

Senior individual contributor role within the core Capital Markets division responsible for high-impact, low-latency trading infrastructure.
Focuses on architectural ownership, performance optimization, exchange connectivity, and system resilience for mission-critical trading components.

Key Responsibilities

Design, develop, and optimize low-latency, mission-critical trading systems.
Own key components of the trading stack end-to-end (from architecture through production operations).
Collaborate with quants, traders, and engineers to enhance trading performance and resilience.
Maintain trading infrastructure with emphasis on performance, stability, observability, and operational excellence.
Troubleshoot complex production issues involving exchange connectivity, execution systems, and market data feeds.
Set technical direction, enforce engineering standards, conduct code reviews, and mentor engineers.
Implement agentic engineering principles: utilize AI-assisted workflows, automate operational workflows, and expand agentic tooling.
Execute functional, component, and production-readiness testing for critical trading components.

Requirements

Technical Qualifications:

Production-grade Rust experience building high-performance, concurrent systems (proficiency with Tokio is an advantage).
Hands-on experience in systematic trading environments (HFT, Market Making, Quantitative Trading) with practical knowledge of execution, market data, and operational risk.
Strong AWS and Linux engineering expertise, including latency-sensitive cloud configurations, shell scripting, debugging, and production troubleshooting.
Proficiency in Python (or related scripting languages) for strategy development, tooling, and workflow automation.
Deep familiarity with trading protocols (FIX, REST, WebSocket), exchange connectivity, and real-time market data handling.
Understanding of low-latency networking concepts: TCP/UDP, latency path analysis, dedicated network infrastructure, and kernel bypass techniques (e.g., DPDK).
Familiarity with agentic engineering tools and concepts: LLMs, MCP APIs, AI-first IDEs (e.g., Cursor, Claude Code), test harness engineering, and workflow automation.

Competencies & Seniority:

End-to-end ownership and proactive operational diligence.
Independent technical leadership and architectural decision-making.
Strong written and verbal communication in a distributed, remote team setting.

Compensation & Benefits

Competitive salary package.
Remote work arrangement with flexible working hours.
Collaborative international team culture.

Screening & Policies

Background Check: All offers are contingent upon the successful completion of standard background checks.
Equal Opportunity: Merit- and performance-based hiring and promotion across all candidate backgrounds.

Company Overview

Digital asset market maker founded in 2017 with over 200 team members across 42 nationalities.
Active across 80+ exchanges offering market making, options trading, high-frequency trading (HFT), OTC, and DeFi trading desks.
Global remote workforce with physical hubs in London, Brussels, Singapore, and Paris.

Role Overview

Senior individual contributor role within the core Capital Markets division responsible for high-impact, low-latency trading infrastructure.
Focuses on architectural ownership, performance optimization, exchange connectivity, and system resilience for mission-critical trading components.

Key Responsibilities

Design, develop, and optimize low-latency, mission-critical trading systems.
Own key components of the trading stack end-to-end (from architecture through production operations).
Collaborate with quants, traders, and engineers to enhance trading performance and resilience.
Maintain trading infrastructure with emphasis on performance, stability, observability, and operational excellence.
Troubleshoot complex production issues involving exchange connectivity, execution systems, and market data feeds.
Set technical direction, enforce engineering standards, conduct code reviews, and mentor engineers.
Implement agentic engineering principles: utilize AI-assisted workflows, automate operational workflows, and expand agentic tooling.
Execute functional, component, and production-readiness testing for critical trading components.

Requirements

Technical Qualifications:

Production-grade Rust experience building high-performance, concurrent systems (proficiency with Tokio is an advantage).
Hands-on experience in systematic trading environments (HFT, Market Making, Quantitative Trading) with practical knowledge of execution, market data, and operational risk.
Strong AWS and Linux engineering expertise, including latency-sensitive cloud configurations, shell scripting, debugging, and production troubleshooting.
Proficiency in Python (or related scripting languages) for strategy development, tooling, and workflow automation.
Deep familiarity with trading protocols (FIX, REST, WebSocket), exchange connectivity, and real-time market data handling.
Understanding of low-latency networking concepts: TCP/UDP, latency path analysis, dedicated network infrastructure, and kernel bypass techniques (e.g., DPDK).
Familiarity with agentic engineering tools and concepts: LLMs, MCP APIs, AI-first IDEs (e.g., Cursor, Claude Code), test harness engineering, and workflow automation.

Competencies & Seniority:

End-to-end ownership and proactive operational diligence.
Independent technical leadership and architectural decision-making.
Strong written and verbal communication in a distributed, remote team setting.

Compensation & Benefits

Competitive salary package.
Remote work arrangement with flexible working hours.
Collaborative international team culture.

Screening & Policies

Background Check: All offers are contingent upon the successful completion of standard background checks.
Equal Opportunity: Merit- and performance-based hiring and promotion across all candidate backgrounds.

Rust Engineer - Trading Systems

Senior Rust Engineer - High Frequency Trading (HFT)

Staff Backend Engineer (Rust)

Senior Software Engineer - Protocol

Senior Systems Engineer

Backend Developer

Senior Rust Engineer

Company Overview

Role Overview

Key Responsibilities

Requirements

Compensation & Benefits

Screening & Policies

Company Overview

Role Overview

Key Responsibilities

Requirements

Compensation & Benefits

Screening & Policies

Company Overview

Role Overview

Key Responsibilities

Requirements

Compensation & Benefits

Screening & Policies

Company Overview

Role Overview

Key Responsibilities

Requirements

Compensation & Benefits

Screening & Policies

Rust Engineer - Trading Systems

Senior Rust Engineer - High Frequency Trading (HFT)

Staff Backend Engineer (Rust)

Senior Software Engineer - Protocol

Senior Systems Engineer

Backend Developer

Senior Rust Engineer