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Job Details

Millennium logo
Hedge Funds

Software Engineer - Java

at Millennium

ExperiencedNo visa sponsorship

Posted 17 days ago

No clicks

Experienced Java developer to build and maintain server-side services for a systematic trading platform supporting order execution, positions/holdings, and post-trade workflows. The role focuses on high-performance, latency-sensitive Java systems (predictable low latency and high throughput), designing distributed, scalable components and applying strong engineering practices around concurrency, performance, reliability, and testability. Requires close collaboration with PMs, traders, and engineers and familiarity with CI/CD, automated testing, observability, and trading workflows.

Compensation
Not specified

Currency: Not specified

City
Not specified
Country
Not specified

Full Job Description

Software Engineer - Java

Overview

We are looking for an experienced Java Developer to support our Systematic Portfolio Managers. You will work on a strategic platform that handles order execution, positions/holdings, and related trading workflows. The environment is high-performance, latency-sensitive Java, focused on predictable low latency, high throughput, and scalability (not ultra–low-latency HFT).

Key Responsibilities

  • Design, develop, and maintain server-side Java services for trading and post-trade workflows.
  • Build and enhance distributed, scalable components for orders, executions, positions, and holdings.
  • Apply strong engineering practices around concurrency, performance, reliability, and failure handling.
  • Work closely with PMs, traders, and engineers to turn requirements into robust, testable solutions.
  • Participate in code reviews, design/architecture discussions, and engineering standards.
  • Use modern CI/CD and automated testing practices for safe, repeatable deployments.
  • Improve operability and observability (metrics, logging, tracing, alerting).

Required Skills:

  • BA/BS in Computer Science or equivalent experience.
  • Strong knowledge of data structures, algorithms, and problem-solving.
  • 5+ years of server-side Java with solid concurrency experience.
  • Experience building high-performance, distributed, scalable systems in production.
  • Strong automated testing experience in Java (e.g., JUnit) and testable system design.
  • Experience with modern CI/CD (automated builds/tests, quality gates, deployment automation).
  • Knowledge/experience with Kafka, Spring Boot, JUnit, Redis.
  • Working knowledge of Unix/Linux.
  • Financial industry experience (buy-side or sell-side) in trading/execution/order workflows.

Strongly desired:

  • Buy-side experience (hedge fund, asset manager, prop, systematic platform teams).
  • Experience with OMS and execution pipelines (order lifecycle, routing, fills, allocations, bookings).
  • Experience writing high-performance, GC-aware Java for predictable latency.
  • Some C/C++ experience focused on performance and memory control.
  • Experience with performance profiling tools (Java Flight Recorder/JMC, async-profiler, YourKit).
  • Python or shell scripting for tooling and automation.

What We Look for in Culture

  • Self-starter with strong ownership and follow-through.
  • Clear, open communication and strong collaboration; prioritizes team success.
  • Demonstrated desire to learn and improve, raising the bar on performance, reliability, and engineering quality.

Job Details

Millennium logo
Hedge Funds

17 days ago

clicks

Software Engineer - Java

at Millennium

ExperiencedNo visa sponsorship

Not specified

Currency not set

City: Not specified

Country: Not specified

Experienced Java developer to build and maintain server-side services for a systematic trading platform supporting order execution, positions/holdings, and post-trade workflows. The role focuses on high-performance, latency-sensitive Java systems (predictable low latency and high throughput), designing distributed, scalable components and applying strong engineering practices around concurrency, performance, reliability, and testability. Requires close collaboration with PMs, traders, and engineers and familiarity with CI/CD, automated testing, observability, and trading workflows.

Full Job Description

Software Engineer - Java

Overview

We are looking for an experienced Java Developer to support our Systematic Portfolio Managers. You will work on a strategic platform that handles order execution, positions/holdings, and related trading workflows. The environment is high-performance, latency-sensitive Java, focused on predictable low latency, high throughput, and scalability (not ultra–low-latency HFT).

Key Responsibilities

  • Design, develop, and maintain server-side Java services for trading and post-trade workflows.
  • Build and enhance distributed, scalable components for orders, executions, positions, and holdings.
  • Apply strong engineering practices around concurrency, performance, reliability, and failure handling.
  • Work closely with PMs, traders, and engineers to turn requirements into robust, testable solutions.
  • Participate in code reviews, design/architecture discussions, and engineering standards.
  • Use modern CI/CD and automated testing practices for safe, repeatable deployments.
  • Improve operability and observability (metrics, logging, tracing, alerting).

Required Skills:

  • BA/BS in Computer Science or equivalent experience.
  • Strong knowledge of data structures, algorithms, and problem-solving.
  • 5+ years of server-side Java with solid concurrency experience.
  • Experience building high-performance, distributed, scalable systems in production.
  • Strong automated testing experience in Java (e.g., JUnit) and testable system design.
  • Experience with modern CI/CD (automated builds/tests, quality gates, deployment automation).
  • Knowledge/experience with Kafka, Spring Boot, JUnit, Redis.
  • Working knowledge of Unix/Linux.
  • Financial industry experience (buy-side or sell-side) in trading/execution/order workflows.

Strongly desired:

  • Buy-side experience (hedge fund, asset manager, prop, systematic platform teams).
  • Experience with OMS and execution pipelines (order lifecycle, routing, fills, allocations, bookings).
  • Experience writing high-performance, GC-aware Java for predictable latency.
  • Some C/C++ experience focused on performance and memory control.
  • Experience with performance profiling tools (Java Flight Recorder/JMC, async-profiler, YourKit).
  • Python or shell scripting for tooling and automation.

What We Look for in Culture

  • Self-starter with strong ownership and follow-through.
  • Clear, open communication and strong collaboration; prioritizes team success.
  • Demonstrated desire to learn and improve, raising the bar on performance, reliability, and engineering quality.