Senior Engineer, Execution Technology

Balyasny Asset Management L.P.; Warszawa; On-site; PLN 300,000 - 420,000; Full time

Job summary

Balyasny Asset Management L.P. is seeking a Senior Engineer for the Execution Technology team to shape the next generation of trading platforms. You will design high-performance, microsecond-aware systems and lead strategic engineering initiatives from concept to production.

You will mentor engineers, drive architecture decisions, and collaborate with traders and risk teams to align tech with business needs. Deep Java experience and proven leadership in distributed systems are required.

Qualifications

• 10–15+ years of experience building financial or trading systems in Java.
• Extensive experience with multithreaded/concurrent programming, including lock-free algorithms.
• Strong experience designing and developing distributed systems.
• Proven track record of leading complex technical projects from start to finish.
• Demonstrated ability to mentor engineers and contribute to a high-performing team.
• Excellent verbal and written communication skills.
• Thrives in a fast-paced environment.
• Familiarity with AI-assisted development tools for planning, code generation, and testing.
• Comfortable reading and maintaining systems built in C#.

Responsibilities

• Design and build high-performance trading algorithms and distributed system components.
• Lead the delivery of strategic engineering initiatives from concept through production rollout and post-production support.
• Own complex technical projects end-to-end, coordinating with engineering, trading, and business stakeholders.
• Provide technical leadership to shape architecture, standards, and development practices.
• Mentor engineers through coaching, design collaboration, and hands-on support to raise team capability.
• Raise the bar through rigorous design and code reviews.
• Optimize for efficiency, scalability, latency, and stability across systems.
• Bridge technology and business by collaborating with traders, portfolio managers, and risk teams.
• Identify opportunities to simplify, modernize, and strengthen the execution platform.

Skills

Java

Multithreaded programming

Distributed systems

Leadership/mentorship

Communication

AI-assisted development tools

C# familiarity

Job description

The Execution Technology team at Balyasny sets the standard for innovative, effective, and user-centric technologies that empower our Investment and Business divisions to achieve breakthrough performance. BAM's Execution Technology team builds microsecond-aware systems that sit at the core of our business. Our platforms support large-scale transaction flows with microsecond latency and high fault tolerance.

As ambassadors of leading-edge design and engineering, we are looking for a Senior Engineer to help shape the next generation of execution platforms. This role is suited to a hands-on technical leader who thrives on solving complex engineering problems, driving projects from inception through delivery, and elevating the capability of the wider team through mentorship and technical leadership.

We are looking for candidates who share a passion for tackling complexity and building platforms that can scale through multiple orders of magnitude.

Responsibilities

• Design and build high-performance trading algorithms and distributed system components.
• Lead the delivery of strategic engineering initiatives from initial concept and design through implementation, rollout, and post-production support.
• Take ownership of complex technical projects end-to-end, coordinating across engineering, trading, and business stakeholders to ensure successful outcomes.
• Provide technical leadership across the team, helping shape architecture, engineering standards, and development practices.
• Mentor and up-skill engineers through coaching, design collaboration, and hands-on support, helping raise the overall technical capability of the team.
• Raise the bar through rigorous design and code reviews.
• Optimize relentlessly — improving efficiency, scalability, latency, and stability across our systems.
• Bridge the gap between technology and the business, collaborating directly with traders, portfolio managers, and risk teams.
• Identify opportunities to simplify, modernize, and strengthen the execution platform as business needs evolve.

Minimum Qualifications

• 10–15+ years of experience building financial or trading systems in Java.
• Extensive experience with multithreaded/concurrent programming, including lock-free algorithms.
• Strong experience designing and developing distributed systems.
• Proven track record of leading complex technical projects from start to finish.
• Demonstrated ability to mentor engineers and contribute to the growth and development of a high-performing team.
• Excellent verbal and written communication skills.
• Thrives in a fast-paced environment.
• Familiarity with AI-assisted development tools for planning, code generation, and testing.
• Comfortable reading and maintaining systems built in C#.

Even if your experience doesn't match every requirement, we'd still love to hear from you—if you're excited about this role, we encourage you to apply!