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Capital Markets Firm Upgrades Execution Platform for Peak-Market Resilience

About the Client

The client was a European brokerage supporting high-volume retail and professional trading across multiple venues. Its legacy execution engine performed adequately during normal conditions, but struggled during market spikes when latency, queuing, and throttling caused order delays and operational risk. To modernize execution performance and improve reliability under stress, the brokerage partnered with Zymr to rebuild its trading engine with a modular, scalable architecture.

Key Outcomes

65% Reduction in Order Execution Time
1M+ Daily Transactions Supported

Business Challenges

During volatile market windows, the legacy engine could not maintain consistent execution speed or stability. The platform lacked modern scalability patterns, making it difficult to absorb burst traffic without increasing latency or introducing outages. The brokerage also needed multi-exchange connectivity via FIX, real-time liquidity routing, and clean modularity so execution services could evolve without risky platform-wide releases. The modernization had to deliver measurable latency improvements while maintaining strict uptime expectations and operational continuity.

Business Impacts / Key Results Achieved

Zymr helped the brokerage replace a brittle legacy engine with a modern execution platform built for volatility. The new architecture improved speed, routing intelligence, and reliability at scale, giving the brokerage the resilience needed to compete during peak-market conditions without outages or performance trade-offs.

  • 65% Reduction in Order Execution Time
    Faster processing improved fill performance during high-velocity trading.
  • Real-Time Liquidity Routing Enabled
    The brokerage improved execution quality across venues.
  • 1M+ Daily Transactions Supported
    The system handled sustained high throughput without performance degradation.
  • Zero Downtime Under Market Spikes
    Stability improved materially during volatility windows.

Strategy and Solutions

Zymr designed and delivered a high-speed, modular trading system built on a microservices framework, engineered for low-latency execution and peak-load stability.

  • Modular Microservices Execution Engine
    Rebuilt core execution services as independently scalable components.
  • FIX Connectivity to Multiple Exchanges
    Implemented FIX-based integrations for reliable multi-venue connectivity.
  • Real-Time Liquidity Routing
    Enabled intelligent routing based on venue liquidity and execution conditions.
  • Peak-Load Performance Engineering
    Optimized latency paths and scaled services to handle burst traffic smoothly.
  • Reliability and Uptime Controls
    Implemented resilience patterns to maintain continuity during volatility.
  • Operational Monitoring and Alerting
    Added real-time observability for execution health, latency, and throughput.
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