Blockchain Developer · EVM / Smart Contracts / Web3
Build the
trust layer.
I engineer decentralized products where smart-contract logic, wallet UX and protocol security meet. The work is structured like a prism: one transaction, many visible layers of trust.
◆VERIFY / EXECUTE / SETTLE
01 / Protocol mindset
Transparent by
construction.
I turn ambiguous product ideas into auditable contract systems: explicit state, predictable transactions, careful permissions and interfaces that help people understand what the chain is doing.
02 / The stack
Layers of
craft.
Expertise presented as a protocol stack rather than generic percentage bars, from Solidity primitives to the product surface that makes decentralized systems usable.
Layer 01
Smart Contracts
Design and implementation of EVM contracts with explicit state transitions, access controls and gas-aware execution.
SolidityOpenZeppelinFoundry
Layer 02
Protocol Security
Threat modeling, invariant thinking, fuzzing, reentrancy analysis and adversarial test cases before deployment.
FuzzingInvariantsSlither
Layer 03
Web3 Product
Wallet connection, transaction states, signing flows and readable interfaces that reduce user uncertainty.
EthersWagmiReact
Layer 04
On-chain Data
Event-driven product logic, indexing strategies and observability for systems that need a clear transaction trail.
EventsThe GraphRPC
Layer 05
Deployment & Ops
Network-aware deployments, verification workflows, environment separation and practical post-launch monitoring.
EVMCI/CDMultichain
03 / Selected builds
Proofs of
execution.
Case studies spanning decentralized exchange mechanics, verifiable credentials and community governance.
CASE / 001 · DeFi
PulseSwap Liquidity Router
A transparent routing concept for multi-pool swaps. The build focuses on deterministic contract paths, slippage-aware UX and transaction states that remain legible from wallet signature to settlement.
SolidityEVMFoundryDApp
0x
CASE / 002 · Identity
ProofPass Credentials
Wallet-owned credential flows for verifiable access without exposing unnecessary personal data.
EIP-style claimsWallet UX
◇
04 / Journey
From code
to chain.
A career arc across application engineering, protocol development and security-minded Web3 product delivery.
Blockchain Engineer · Northstar Protocol Lab
Own Solidity architecture, deployment workflows and integration patterns for EVM products. Partner with product and security teams to turn protocol requirements into testable contract behavior.
Web3 Engineer · Meridian Labs
Built wallet-connected applications, token utilities and event-driven data flows while introducing stronger automated testing and transaction-state UX.
Software Engineer · Atlas Digital
Started in backend and distributed systems, developing the systems thinking that later shaped a focus on deterministic state, APIs and blockchain infrastructure.
05 / Contact
Let's ship
with intent.
For protocol engineering, smart-contract builds, Web3 product work or a security-minded technical collaboration, send a concise brief.
Good blockchain engineering is not about putting everything on-chain. It is about choosing the right trust boundary, making state explicit and giving users a product they can reason about.
✉ ren@example.com
☎ +65 6555 0183
◈ Singapore