Senior Software Engineer - Algo Development at Millennium | NY, US | Rezi

Senior Software Engineer - Algo Development at Millennium

Senior Software Engineer - Algo Development

Millennium · NY, US

2 weeks ago

Senior Software Engineer - Algo Development

Millennium · NY, US

15 days ago
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About the Role

The Algo Development Technology team builds the execution algorithms and trading platform that Millennium's portfolio managers use to trade equities and futures globally. This role involves building real-time algorithmic trading systems focused on execution optimization and developing a Java-based proprietary trading framework.

Responsibilities

  • Build real-time algorithmic trading systems focused on execution optimization.
  • Develop, support and enhance a Java-based proprietary trading framework, a sequencer-based platform designed to be scalable, replayable and reproducible.
  • Tune and optimize system performance to support low-latency, high-throughput trading workflows.
  • Own automated testing for algorithms, including simulation, backtesting, regression suites and replay frameworks.
  • Partner with the production support team to ensure systems are effectively monitored and supported.
  • Partner with quants, execution traders and global technology teams, facing off with the business to help define and deliver new features.

Requirements

  • 7+ years of experience with equities execution systems, ideally buy-side.
  • Experience developing execution algorithms, including VWAP, TWAP, inline and pairs strategies.
  • Experience working with matching engines, dark pools and algorithm container frameworks.
  • Experience implementing automated testing strategies for algorithms, including simulation, backtesting, regression suites and replay frameworks.
  • Deep understanding of market microstructure, pre-trade risk checks, limit frameworks, regulatory requirements and their impact on execution algorithm performance.
  • Expert-level Java experience building low-latency, GC-aware, high-throughput distributed systems, with a strong grasp of event-driven architectures and messaging platforms such as Kafka, Solace or similar technologies.
  • Experience building financing or post-trade systems, working with futures trading platforms, using KDB/Q, or familiarity with AI-based code-generation tools is a plus.

Skills

  • Java
  • Kafka
  • Solace
  • KDB/Q
  • AI-based code-generation tools

Location

  • New York

Work Type

  • Full-time

Experience Level

  • Senior
  • 7+ years

Education Level

  • Bachelor's degree in Computer Science or a related field.

Salary/Compensations

  • $175,000 to $250,000

Benefits

  • Base salary
  • Discretionary performance bonus
  • Comprehensive benefits

About the Company

  • Millennium is a global, diversified alternative investment firm, founded in 1989.
  • Millennium's mission is to deliver results for our investors.
  • Our people are empowered with both independence and support: the autonomy to pursue ideas with conviction and the backing of a global network committed to collaboration, disciplined risk management and continuous learning.
  • With opportunities to deepen expertise and accelerate development, talent at Millennium is equipped to adapt, evolve and build lasting impact over time.