Fidelity Investments

MILL5 partnered with Fidelity to modernize its next-generation trading platform through a comprehensive architectural rewrite, advanced UX/UI, and secure, high-performance system design. The engagement delivered a 200% improvement in platform responsiveness, enhanced startup reliability, and deep telemetry-driven diagnostics integrated into Fidelity’s CI/CD pipeline. MILL5 also enabled cross-platform remote application sharing, resolving long-standing customer support limitations and improving overall client experience.

Fidelity Investments is an international provider of financial services and investment products to individuals and institutions with over $16 billion in annual revenue. They faced several performance, scalability, and support challenges that limited the efficiency and reliability of its next-generation trading platform.

• Platform performance and responsiveness did not meet the demands of high-volume, real-time trading
• Legacy architecture constrained scalability and limited modernization efforts
• Limited visibility into system performance made it difficult to identify and resolve bottlenecks
• Application startup times and reliability issues impacted user experience
• Inadequate tooling for cross-platform remote support of customer applications
• Lack of integrated performance analysis within the CI/CD pipeline

• Delivered a comprehensive rewrite of Fidelity’s next-generation trading platform with a modern, high-performance architecture and redesigned UX/UI.
• Increased platform responsiveness and overall performance by 200% through optimization and architectural improvements.
• Improved user experience and usability through intuitive interface design aligned with the needs of active traders and internal support teams.
• Implemented advanced telemetry and diagnostics to power real-time dashboards for identifying performance bottlenecks and optimization opportunities.
• Integrated performance engineering and analysis directly into the CI/CD pipeline to ensure sustained performance at scale.
• Introduced an innovative asynchronous startup architecture to improve application startup speed and reliability.
• Enabled secure, cross-platform remote application sharing to overcome long-standing customer support limitations and enhance client support experiences.