femi0x

Protocol Engineer

Protocol engineer at MrgnLabs and founder of YDelta. Previously engineering lead and CTO at NLX, where I led the protocol from the first commit through its acquisition by Satoshi App, now Volta Markets. I build lending and derivatives protocols on Solana.


Experience: 3 years

Yearly salary: $0

Hourly rate: $0

Nationality: 🇳🇬 Nigeria

Residency: 🇳🇬 Nigeria


Experience

Program Engineer
MrgnLabs
2025 - 2026
• Built a custom forward bump allocator with heap checkpoint/restore, letting the risk engine recycle temporary allocations across position checks and increasing supported Kamino positions from 8 to 16. • Designed and implemented the oracle circuit breaker now live on mainnet, with a tiered halt/recovery state machine based on price deviation and confidence. • Designed and implemented the mainnet sliding-window rate limiter for bank- and group-level net outflows; it now actively enforces configured withdrawal limits in production. • Added E-Mode leverage guards by deriving safe maximum leverage from collateral and liability weights and enforcing the bound at configuration time. • Built a permissionless same-asset auto-rebalancing system with persistent user policies, keeper-executed moves, and on-chain conservation and health checks.
Founder
YDelta
2025 - 2026
• Designed the curator-vault accounting model, with per-strategy shares and NAV across idle marginfi deposits and capital deployed into fixed-rate loans, while letting the same liquidity pool lend across multiple collateral markets. • Adapted Manifest’s seat-based order book for lending, using consolidated user state and indexed balances to handle partial and multi-order fills; matched loans are materialized into dedicated PDAs through a separate crank. • Designed the marginfi fallback that moves unmatched borrow demand into variable-rate debt and later refinances it into fixed-rate loans when compatible lender liquidity becomes available. • Built the loan lifecycle for repayment, maturity, settlement, and liquidation with explicit accounting conservation checks, backed by Rust unit and end-to-end tests.
Engineering Lead / CTO
NLX
2023 - 2025
• Led engineering from the first commit through the company’s acquisition by Satoshi App (now Volta Markets); NLX reached ~$10M in pool liquidity and ~$100M in cumulative trading volume before the acquisition. • Adapted the GMX v2-derived protocol to use BTC-backed liquidity on both sides of the market rather than a stablecoin-backed short side. • Owned the production contract and keeper stack handling order execution, liquidations, and funding updates against live user positions. • Built indexers and on-chain processors to track positions and reconcile protocol state.

Skills

backend
rust
solana
solidity
typescript
english