---
title: "Trading platform modernization"
description: "A proprietary multi-asset platform built from the ground up at roughly a third of the traditional five-year cost of ownership."
canonical_url: https://sumantic.ai/work/trading-platform-modernization/
last_updated: 2026-06-17
---

# Trading platform modernization

Multi-asset brokerage - Delivered. A proprietary multi-asset platform built from the ground up at roughly a third of the traditional five-year cost of ownership.

- **~$8M** -- 5-year cost of ownership, build and ongoing
- **68%** -- lower than the traditional approach
- **~700k** -- lines of reviewed production code in two months

**Challenge**

A multi-asset brokerage needed to modernize on a tight budget with no time to spare. Traditional approaches were too slow and too expensive. The question was direct: how do you build a proprietary, competitive platform fast and at low cost without cutting corners on quality?

**Approach**

We built the platform from the ground up using our agentic software development lifecycle as the accelerant, with a senior engineer owning every gate. Rather than incrementally modernizing a three-tier monolith, we delivered a proprietary platform with no third-party licensing ceiling on instruments, and value landed continuously instead of only at the end.

| Traditional method | Sumantic agentic method |
| --- | --- |
| Incremental modernization of a three-tier monolith | Proprietary platform built from the ground up |
| Instrument scaling capped by third-party licensing | No third-party licensing ceiling on instruments |
| Sequential delivery -- benefits only at the end | Parallel delivery -- value lands continuously |
| Excessive sharding of business logic to scale | Every artifact reviewed and owned by senior engineers |
| 5-year cost of ownership: $25.5M | 5-year cost of ownership: ~$8M |

**Outcome**

The agentic process produced approximately 700,000 lines of production code in two months -- every line reviewed and owned by our engineers. The result was a five-year cost of ownership near $8M against a traditional $25.5M: roughly 68% lower, a saving on the order of $17.5M.

Stack: Agentic SDLC, Senior-engineer oversight, Multi-asset platform.

---
Canonical HTML: https://sumantic.ai/work/trading-platform-modernization/