Performance Engineer – Low Latency Trading Systems

Net

Performance Engineer – Low Latency Trading Systems

Net
Aleja Zwycięstwa 96, Gdynia

Sky Quant Sp. z o.o.

Full-time
Any
Senior
Hybrid

Job description

About SKY QUANT

SKY QUANT is a rapidly growing algorithmic trading firm operating on traditional financial exchanges as well as cloud-based markets. Our success is driven by technology excellence, precision engineering, and continuous latency optimization across our trading stack.

One of our core strategic areas is the continuous monitoring and improvement of latency within trading systems — both internal components and external exchange connectivity.

Performance optimization in low-latency trading is a highly complex, multi-layered challenge involving infrastructure, hardware, operating systems, networking, software architecture, and deep instrumentation.

We are looking for a Performance Engineer who will take a holistic approach to performance management and latency optimization across our technology ecosystem.

If you have strong expertise in at least several of the areas listed below, we would love to hear from you. We fully understand that no one is an expert in everything.

Key Responsibilities

  • Instrument trading systems and infrastructure to collect meaningful performance and latency metrics

  • Continuously analyze collected data to identify and prioritize the highest-impact optimization opportunities

  • Optimize end-to-end latency across software, infrastructure, and exchange connectivity layers

  • Conduct deep profiling, micro-benchmarking, and performance diagnostics

  • Collaborate with trading and engineering teams to implement measurable performance improvements

Required / Desired Expertise

You should feel confident in several of the following areas:

Systems & Hardware

  • Linux tuning for low-latency workloads

  • Hardware-level performance tuning

  • Strong understanding of modern CPU architecture:

    • Multicore systems

    • Memory hierarchy (RAM, L1/L2/L3 caches)

    • Execution pipelines

    • Instruction sets

    • SIMD and vectorization

  • Micro-benchmarking and performance profiling

  • Proficiency with perf and interpretation of its output

Networking

  • High-performance networking concepts

  • Kernel bypass technologies

  • NIC and network hardware tuning

  • Optimization of exchange connectivity

  • Experience with exchange protocols:

    • Binary protocols (traditional exchanges)

    • WebSocket / JSON (crypto exchanges)

Software Performance Engineering

  • Deep understanding of algorithms and data structures with performance focus

  • Compiler-level optimization awareness

  • Ability to combine high-level languages with low-level performance-critical components

    • e.g., replacing networking or protocol layers in .NET with specialized C/C++/Rust modules

  • Strong experience in C# performance optimization (modern .NET, ideally .NET 10)

Cloud Infrastructure

  • Performance optimization in cloud environments (AWS, Azure)

  • Minimizing exchange access latency

  • Tuning cloud VM parameters for low-latency workloads

What We Offer

  • Highly competitive compensation

  • Direct collaboration with experts across trading, infrastructure, and systems engineering

  • Technically challenging problems with measurable business impact

  • A performance-driven engineering culture

  • Opportunity to influence the core latency strategy of a growing algorithmic trading firm

Who You Are

You are analytical, deeply technical, and driven by measurable performance improvements. You enjoy working close to hardware while still understanding high-level system architecture. You care about nanoseconds, not just milliseconds.

If this sounds like you — we would love to explore what you can bring to SKY QUANT.

Apply now and help us push latency boundaries.

Tech stack

    Polish

    C2

    English

    B2

    C

    advanced

    C++

    advanced

    C#

    advanced

    Linux networking

    advanced

    Linux

    advanced

    OpenTelemetry

    nice to have

    Azure

    nice to have

    Amazon AWS

    nice to have

Office location

Performance Engineer – Low Latency Trading Systems

Summary of the offer

Performance Engineer – Low Latency Trading Systems

Aleja Zwycięstwa 96, Gdynia
Sky Quant Sp. z o.o.
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