BlockZenithBlockZenith
Work · Case studies

Code in production. Capital at stake.

A sample of recent work. Names redacted where required. Numbers verified. Ask for references during scoping.

DeFi · Execution·Confidential · top‑5 L2 DEX·2025

Intent router with MEV‑aware settlement

We replaced a legacy order‑router with a solver‑driven intent system. Same UX, 23% better fills.

RustFoundryFlashbotsSUAVEAnvil
+23%
Execution quality
38 ms
p50 latency
0.04%
Revert rate
DeFAI · Asset mgmt·Helios Capital·2024

Autonomous vault platform with guardian circuits

Self‑custodial vaults that rebalance autonomously. Guardian circuits suspend strategies on regime change in under 1 block.

SolidityPythonNautilusEigenLayer
$410M
TVL
+6.1%
APY delta vs. bench
0
Drawdown events
Agentic AI · Ops·A regulated EU neobank·2025

Operations agent for tier‑1 support

A role‑typed agent graph ingesting tickets, graph data and ledger state. Audit trail is the product.

Claude 4LangGraphPostgresOpenTelemetry
71%
Ticket deflection
+14 pts
CSAT
< 0.3%
Hallucination rate
Protocol · L1·A Polkadot parachain·2024

Cross‑chain asset pallet with XCMv3

Authored a production pallet and XCM extension enabling permissioned RWA transfers across the relay.

RustSubstrateXCMv3
39%
Gas saved
28k
Lines of Rust
0 critical
Audit findings
Protocol · BTC·Open source·2023

Bitcoin signet fuzz harness

A deterministic fuzzing harness targeting Bitcoin Core script interpreter. Upstreamed.

C++libFuzzerBitcoin Core
6
Bugs surfaced
11
Upstream PRs
120k
Execs / sec
Applied ML · Privacy·Stealth · quant fund·2025

Private inference for alpha models

FHE‑backed inference so signals never leave the enclave. Latency budget met at production scale.

CUDAFHERustNitro Enclaves
74 ms
Latency p99
4
Model families
0 bits
Leakage (audited)
Reception

What clients say when nobody is looking.

The sprint memo was the most honest technical document we’ve ever received. They cut the scope we should have cut and ignored the scope we should have ignored.

Head of Engineering, top‑5 L2 DEX

They shipped a vault platform that has not missed a block. That is the polite version of the review.

CIO, Helios Capital

We asked for an LLM agent. We got an operations system with observability, evals, and a runbook. Huge difference.

VP Platform, EU neobank

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