Web3 & Blockchain
Decentralised Financial Protocols Engineered for Resilient Liquidity.
What we build
DeFi Development, end to end.
Automated Market Makers & DEX Protocols
Decentralised exchange engines utilising constant product (x*y=k) and concentrated liquidity models for seamless on-chain swaps.
- Concentrated liquidity pool math
- Flash swap execution contracts
- Dynamic swap fee tiers
- Slippage protection mechanisms
Lending, Borrowing & Collateral Vaults
Over-collateralized lending protocols with automated health factor calculations, interest rate models, and liquidations.
- Dynamic variable interest rate curves
- Automated liquidation auction bots
- Multi-asset collateral management
- Bad debt isolation pools
Yield Aggregators & Staking Farms
Automated smart contract vaults that rebalance liquidity across various DeFi pools to maximise annual percentage yields (APY).
- ERC-4626 standard yield vaults
- Automated auto-compounding harvest bots
- Impermanent loss mitigation logic
- Real-time protocol APY tracking
Problems we solve
Common friction, addressed directly.
The problem
Vulnerability to flash loan price manipulation attacks draining protocol liquidity.
Our approach
We implement Time-Weighted Average Price (TWAP) oracles and Chainlink multi-source price feeds with strict divergence checks.
The problem
Impermanent loss discouraging liquidity providers from depositing capital.
Our approach
We design concentrated liquidity curves and automated fee-compounding algorithms that offset market volatility.
The problem
Complicated, confusing Web3 interfaces intimidating non-technical crypto users.
Our approach
We build intuitive consumer-grade interfaces with clear slippage sliders, gas estimates, and 1-click approvals.
Capabilities
Standards we work to.
Constant Product & Concentrated Math
Implementing precise fixed-point arithmetic in Solidity avoiding precision loss.
Chainlink & Pyth Oracle Architecture
Integrating high-frequency decentralised oracles with staleness and circuit-breaker checks.
ERC-4626 Vault Implementations
Standardised tokenised yield vaults compatible with the broader DeFi ecosystem.
Liquidation & MEV Bot Engineering
Developing automated monitoring daemons that protect protocol solvency via rapid liquidations.
Kizoona Tech · Stack
Tools we typically use.
Smart Contract Core
- Solidity
- Foundry
- OpenZeppelin
- Solady
- PRBMath
Oracles & Feeds
- Chainlink
- Pyth Network
- Uniswap V3 TWAP
- Redstone
Frontend & Subgraphs
- Next.js
- Wagmi
- The Graph
- Tailwind CSS
- Viem
DeFi Financial Safety Standards
- Fixed-point math libraries (PRBMath) preventing rounding errors that accumulate into exploits
- Strict staleness and deviation thresholds on all external oracle price updates
- Non-reentrant deposit and withdrawal functions adhering to Checks-Effects-Interactions
- Emergency administrative timelocks allowing community intervention during market anomalies
Delivery
How a typical engagement runs.
- 01
Mathematical Modelling & Invariants
Simulating pool balances, slippage impact, and interest rate curves in Python.
- 02
Smart Contract Architecture
Coding the core liquidity pools, router contracts, and fee distributor vaults in Foundry.
- 03
Adversarial Invariant Fuzzing
Simulating extreme market swings, flash loan attacks, and recursive re-entrancy in test suites.
- 04
Subgraphs & Interface Integration
Deploying custom subgraphs to track TVL, 24h volume, user balances, and swap histories.
- 05
Audit & Mainnet Liquidity Launch
Passing formal security audits, bootstrapping initial liquidity pools, and launching frontend.
Representative scenarios
Where this service fits.
Illustrative examples of the kinds of problems this service addresses and how we would approach them. They are not client case studies.
Cross-Chain Algorithmic Liquidity Router
Typical challenge
A decentralised protocol needed smart contracts to route trades across multiple decentralised exchanges.
How we would approach it
An on-chain router that splits trades across venues to reduce price impact.
Over-Collateralized Lending Protocol
Typical challenge
A fintech platform required a decentralised credit facility for real-world asset collateral.
How we would approach it
An over-collateralised lending design with conservative oracles and liquidation safeguards.
Security & performance
Considerations built in from the start.
- Oracle Manipulation DefenseRequiring multi-block confirmation and multiple independent oracle price feeds.
- Solvency Invariant ChecksAutomated assertion statements verifying total assets match liabilities on every operation.
FAQ
Questions we are often asked.
How do you protect DeFi protocols against flash loan exploits?
Flash loan exploits rely on manipulating a pool's spot price within a single transaction block. We protect protocols by using decentralised oracles (like Chainlink and Uniswap TWAP) rather than instant spot reserves, preventing artificial price swings.
What is an ERC-4626 vault and why is it recommended?
ERC-4626 is the widely adopted standard for tokenised yield-bearing vaults. Using it makes your staking or yield pools easier to integrate with aggregators and dashboards that support the standard.
Can users deposit fiat currency into our DeFi platform?
Yes. We integrate fiat on-ramp aggregators (MoonPay, Transak, Ramp) allowing users to purchase stablecoins (USDC/USDT) with a debit card and deposit directly into your pools in a single seamless flow.
How are gas fees minimised for complex DeFi calculations?
We use unchecked arithmetic blocks where overflow is mathematically impossible, store packed uint128 values, and use minimal assembly in hot execution loops.
Related work
Relevant projects.
- Client2025AXNS ProtocolA decentralised liquidity and asset-management protocol, pairing a considered smart-contract architecture with a clear, institutional-grade web interface.View project
- Concept2026FinTech TreasuryAn internal concept exploring a unified treasury and multi-currency payout terminal for fast-growing international businesses.View project
- Concept2026Vortex AnalyticsAn internal concept for an on-chain intelligence console that tracks protocol yields, contract anomalies and cross-chain wallet balances.View project
Connected services
Often combined with.
- Smart Contract DevelopmentUnderlying Solidity code and mathematical vault primitives.
- Web3 Wallet DevelopmentSeamless wallet connection and token signing.
- DApp DevelopmentHigh-speed frontend terminal interfaces for swapping and staking.
Start a conversation
Planning a defi development project?
Send a short brief on WhatsApp or through the project form. We will reply with questions, a suggested approach and an indicative timeline.