Director, Head of Execution

galaxydigitalservices; Greater London; On-site; GBP 150,000 - 250,000; Full time

Benefits offered by this job

Competitive base salary

Health benefits for employee andDepend

Flexible / smart working

Job summary

Galaxy Digital Inc. is seeking an experienced Algo Trading / Head of Execution to build and benchmark high-performance trading systems in a fast-paced, global environment.

You will lead development of low-latency routing and contribute to architecture decisions, collaborating with traders, product managers, and external partners. Ideal candidates have extensive experience in crypto markets or related financial ecosystems, and a strong hands-on technical background with cloud and on-premise

Qualifications

• 10+ years of experience developing routing strategies for specific markets (e.g., crypto)
• Strong knowledge of tick data analytics and real-time market data processing
• Familiarity with cloud-based market access or hybrid deployments
• Experience in high-frequency or algorithmic trading environments
• Experience building low-latency systems and working with market data feeds
• Solid understanding of trading system architecture and infrastructure
• Proficiency in FIX protocol and trading system architecture (OMS/EMS)
• Familiarity with concurrency, networking, and memory management
• Experience with Linux systems and performance profiling tools

Responsibilities

• Design and lead the development of a low-latency, high-throughput Algo Trading / SOR system
• Implement intelligent routing algorithms based on execution quality, liquidity, latency, and cost
• Collaborate with traders, and product managers to refine routing logic and build new algorithmic capabilities
• Integrate the SOR with the trading, booking and reporting stack
• Monitor and optimize system performance under real-world trading conditions
• Mentor junior developers, enforce code quality standards, and contribute to architectural decisions
• Provide support for production trading issues and continuously improve system resilience and failover mechanisms

Skills

Algorithmic trading

Low-latency systems

Linux performance profiling

Concurrency & networking

Problem solving

Tools

FIX protocol

OMS/EMS

Trading system architecture

Cloud platforms (AWS/GCP)

Market data feeds (multicast/unicast)

Job description

Who We Are:

Galaxy Digital Inc. (Nasdaq: GLXY) is a global leader in digital assets and data center infrastructure, growing the economy that runs on code. Galaxy delivers the onchain infrastructure that connects institutions to digital assets, including trading, advisory, asset management, staking, self-custody, and tokenization. Galaxy also develops and operates data center infrastructure to power AI and HPC workloads. Anchored by its Helios campus in Texas, Galaxy is building a multi-gigawatt pipeline of more than 5.7 GW of potential capacity, positioning it among the largest and fastest-growing data center developers in North America.

The Company is headquartered in New York City, with offices across North America, Europe, the Middle East, and Asia.

Additional information about Galaxy's businesses and products is available on www.galaxy.com .

What We Value:

We are a diverse team of free thinkers, and fast movers united to help investors and creators energize the global economy. We are looking for individuals who thrive in a culture of builders and overachievers and embrace high performance, transparent feedback, and a mission-first approach. Our culture shapes our way of working and gets us where we want to be.

Seek Excellence.

Be Selective To Be Effective.

Be Highly Aligned, Loosely Coupled.

Disagree Transparently.

Encourage Independent Decision-Making.

Build Dream Teams.

Who You Are:

We're seeking an experienced Algo Trading / Head of Execution to join our team. You have a proven track record of building and benchmarking execution algorithms. Ideally, you've been actively engaged with the crypto markets or have a strong curiosity about them. In this role, you will take the lead in developing greenfield algorithmic trading systems, shaping the core of our next-generation trading infrastructure.

You'll work closely with trading teams, stakeholders, and external partners to deliver critical initiatives that drive our business forward. If you're a natural problem-solver with a passion for hands‑on technical development in a global, fast‑paced environment, we want to hear from you.

What You'll Do:

• Design and lead the development of a low-latency, high-throughput Algo Trading / Smart Order Router system
• Implement intelligent routing algorithms based on execution quality, liquidity, latency, and cost
• Collaborate with traders, and product managers to refine routing logic and build new algorithmic capabilities
• Integrate the SOR with the trading, booking and reporting stack
• Monitor and optimize system performance under real-world trading conditions
• Mentor junior developers, enforce code quality standards, and contribute to architectural decisions
• Provide support for production trading issues and continuously improve system resilience and failover mechanisms

What We're Looking For:

• 10+ years of experience developing routing strategies for specific markets (e.g., U.S. equities, EU markets, crypto exchanges)
• Knowledge of tick data analytics and real-time market data processing
• Familiarity with cloud-based market access or hybrid deployments
• Experience working in high-frequency or algorithmic trading environments
• Experience building low‑latency systems and working with multicast/unicast market data feeds
• A solid understanding of the application stack and infrastructure associated with electronic and algorithmic trading
• Strong technical background, with the ability to understand system architecture and technical workflows
• Proficiency in FIX protocol and trading system architecture (OMS/EMS, market gateways)
• Familiarity with concurrency, networking, and memory management
• Experience with Linux systems and performance profiling tools
• A proactive, problem‑solving mindset and the ability to thrive in a fast‑paced, collaborative environment

Bonus Points:

• Deep understanding of electronic trading, order types, and market microstructure (equities, options, FX, Crypto etc.)
• Experience in the DeFi, or crypto space
• Exposure to regulatory or compliance-driven environments
• Familiarity with cloud-based infrastructure (e.g., AWS, GCP) or DevOps processes

What We Offer:

• Competitive base salary and discretionary bonus
• Company-paid health and protective benefits for employees and their eligible dependents
• Free virtual coaching and counseling sessions
• Opportunities to learn about the Crypto industry
• Smart, entrepreneurial, and fun colleagues
• Employee Resource Groups

*Benefits may vary depending on location.

Galaxy respects diversity and seeks to provide equal employment opportunities to all employees and job applicants for employment without regard to actual or perceived age, race, color, creed, religion, sex or gender (including pregnancy, childbirth, lactation and related medical conditions), gender identity or gender expression (including transgender status), sexual orientation, marital or partnership or caregiver status, ancestry, national origin, citizenship status, disability, militar