Contributing and consulting with various projects with development and testing -wrote Foundry Solidity unit tests for test coverage to prepare for audits

Curvy (Won: Uniswap - Research - 2nd Prize)Uniswap V4 Custom Curve Hook using Solidity library prb-math for natural exponential and logarithmic functions. GitHub:https://github.com/MarcusWentz/eth-sf-2024

-Helped setup and maintain Ethereum RPC Archive nodes with ETH Docker:https://github.com/eth-educators/eth-docker

-Helped a developer with testing adding liquidity with ERC-20 tokens to Uniswap V2 pools in Foundry by dealing test tokens and using ethers.js scripts to perform transactions on testnets: https://github.com/MarcusWentz/Web3_Get_Set_Contract_Metamask/tree/main/Scripts/javascript/shardeum_testing/UniswapV2/UniswapV2Router02/tokenPair

-Crunch - (Won: RISC Zero - zkVM Application - 1st Prize)https://www.risczero.com/blog/ethdenver-2024-recap-Use TLS 1.3 to prove general API computations inside RISC Zero-Helped test Rust libraries to port into RISC Zero for HTTP communication-Tested HTTP string messages by slicing then comparing expected values in Rusthttps://devfolio.co/projects/risc-zero-tls-verification-14f0https://github.com/MarcusWentz/ethdenver2024

Shared ZoKrates template with developers:https://github.com/MarcusWentz/zokrates_testing

-Corrected Foundry Blockscout smart contract verification https://github.com/foundry-rs/book/pull/967-Simplified documentation for users to run Taiko RPC nodes, block proposers and block provers -Deployed Chainlink nodes https://github.com/taikoxyz/chainlink-taiko with supporting smart contracts and the LINK ERC-677 token standard https://github.com/taikoxyz/chainlink-contract-testing to get ETH/USD on chain-Deployed deterministic proxy to allow smart contracts to be upgraded https://github.com/taikoxyz/deterministic-deployment-proxy-Mentor at ETH Online 2023 -Hosted a Solidity workshop and gave Halo2 and scaling talks at ETH Warsaw 2023-Mentored at ETH Prague 2023 for deploying Solidity smart contracts to Taiko Alpha 3 testnet

Time Concentrate (Won: Scroll [Prize Pool])Uniswap V4 hook to restrict trading during NYSE hours and after hours when bots trade.Inspired by Uniswap V4 hook for NYSE trading hours:https://github.com/horsefacts/trading-days

-Smile DAO (Won: Top 11 Finalist, Gnosis Chain: Best AI Project [2nd Place] ) -Research project for adding machine learning models for smile detection as onnx files into EZKL (Easy Zero Knowledge Inference)

-Tested Ethereum RPC methods on Shardeum (example test: https://github.com/Shardeum/shardeum-bug-reporting/issues/24)-Tested custom RPC method "eth_getAccessList" using ethers.js to automate EIP-2930 accessList for shard routing mulitCall transactions for cross shard contracts on Shardeum (now automated inside Shardeum nodes)-Used Hardhat to deploy UniswapV3 contracts to create pairs and add liquidity -Resolved UniswapV2Router02.sol EIP-170 contract size deployment error in Remix IDE with optimization set to 2000 runs https://github.com/Shardeum/shardeum-bug-reporting/issues/262-Tested UniswapV2 for adding and removing liquidity to token pairs, along with doing swaps https://github.com/Shardeum/shardeum-bug-reporting/issues/263-Documented CREATE (sender address, nonce) and EIP-1014 CREATE2 (sender address, salt, creationCode (byteCode with constructor inputs) ) opcodes for deploying smart contracts deterministically cross chain-Updated and added Shardeum chains to ethereum-lists for chainlist.org while testing Shardeum explorer for EIP-3091 specification: https://github.com/ethereum-lists/chains/pull/2552-Created workshop for ETH Global's ETH India (2022) showing how to use Shardeum-Reading transactions and events using blocks and cycles for Shardeum explorer in JSON-Creating, reviewing and maintaining Shardeum docs using Docusaurus 2-Created document for using Foundry (fast Rust tool) for: -development and test contracts in Solidity -deploying with Shell commands to: -Goerli with EIP-1559 gas and verifying with Etherscan API -Shardeum with Shardeum Legacy gas-Tracking and testing bugs with the community on GitHub:https://github.com/Shardeum/shardeum-bug-reporting/issues-Added Dark and Light mode with Gray theme for Shardeum docs using Docusaurus 2 https://github.com/Shardeum/shardeum-docs/pull/88-Creating Shardeum Missions as Solidity programming challenges for the Shardeum community

Developed working Maximal Extractable Value (MEV) bots written in Golang and Rust.

GardenGrower (Won: Scroll [Prize Pool])-Proposers can create public goods proposals-Users can lock donations to public goods-Users can unlock donations to public goods if the proposal is expired by the deadline-Safe (Gnosis) Multisignature wallet verified that proposal deliverables were met, then transferred donations to proposer-Used Safe (Gnosis) Multisignature Typescript Protocol Kit SDK to create new Multisignature wallets and propose new transactions for Multisignature signers

-Tested Warp transpiler (Solidity to Cairo for Starknet) for contracts: -Solmate -Chainlink -Bulk Transfer-Juno (Golang Starknet client) proposed NewTrie max height 251 checkhttps://github.com/NethermindEth/juno/pull/514

GweiPump: (Won: Top Quality Project) Fair Price Robotic Oil Pump [solo] -Smart contract uses WTI/USD and MATIC/USD pricefeeds, and converts from 1 barrel of oil to 40 milliliters of oil-Raspberry Pi 4 controls peristaltic pump with TIP120 BJT Darlington transistor based on GPIO and smart contract events-Chainlink Keepers automates getting WTI/USD daily with Chainlink node requests-Chainlink VRFv2 picks random drink values (Left, Right or Mixed)-Golang: Geth + Gobot libraries work together as a fast robotics system communicating with the blockchain

WeiBridged: ETH and ERC-20 Wrapped Token Bridge with EVM chains:-Bridge smart contracts cross chain based on a Solidity queue -Used Golang with a local Goerli node, Quicknode, Infura and Alchemy to communicate bridge contracts on different chains: -Bridged Goerli ETH to Optimism Goerli (OG) ETH -Bridged Goerli ETH to Mumbai WETH-Mock bridge contracts automated bridge token unlock using Chainlink Keepers (ideally use CCIP + Chainlink Keepers for real cross chain contracts, but CCIP as of typing is not released)-Goerli local synced Prysm (CL) and Geth (EL) clients able to read and write to Goerli blockchain-Bridge for a 0.3% fee-Frontend has deBridge integration with connected chain gasPrice shown

LuksOracle - Chainlink Node Oracle Service on Lukso: (Won 1st Prize: Social & DAOs - Open Category) (Voted Top 6 out of 69 Projects)-Twitter Name Service: - Chainlink request verified wallet address on chain with Twitter user wallet tweet off chain -On verified request, Twitter name is wiped if in use from old address, then maps address and Twitter name in both directions. Twitter ID resolver can change address => twitter_id if user has multiple twitter_id => address.-Lukso transaction relay used for gasless LINK faucet option-Updated Lukso smart contract by running Chainlink node which fulfilled uint256 request-Created a Lukso LINK faucet which sends a user 20 LINK every 12 hours in Solidity-Deployed LinkToken.sol token contract (ERC-677) to Lukso blockchain-Geth library read, wrote (EIP-155 Chain ID) and subscribed to Lukso smart contract events

-Prevented potential reorg by detecting logsBloom panic error in Geth Merge Engine API in Hive (Go)test: https://github.com/MarcusWentz/hive/blob/master/simulators/ethereum/engine/enginetests.go#L2316-L2327 patch https://github.com/ethereum/go-ethereum/pull/24946-Tested EVM using Retesteth (Yul [Assembly] and LLL): -EIP-3675 (Merge, PoW/PoS block header parameters, block rewards removed, keep miner tips) -EIP-4399 (Merge, PREVRANDAO opcode and mixHash storage) -EIP-1559 (London, RLP new gas parameter inputs) -EIP-2930 (London, RLP access list inputs)

HighWei [Won: Top Quality Project] (solo): Tollbooth with ultrasonic sensors and servo motors. Chainlink node scrapes,filters,scales and aggregates MTA toll fee data with Adapter.js. Chainlink pricefeeds remove need for ERC20 payments. Chainlink Keepers used to close gate [servo] 15 seconds after opened. Ultrasonic sensor sends closeServoGate() Tx with web3.py when distance under 30cm AND gate open.

-Responsible for ARXML Ethernet network development (PREEvision) for Stellantis vehicle programs (ADAS, Infotainment, FOTA)-Experienced in simulating Ethernet network communication (CANoe) and analyzing Wireshark logs-Knowledgeable in applying Ethernet fundamentals (OSI Model, AVB, TCP/IP, SOAD, SOMEIP) when evaluating Ethernet specifications-Fluent in communicating Ethernet network design needs with suppliers

ElectricKeeper (Won Virtual: Top 30 ( Space and The New Frontier [1/1 Slots]) | Chainlink Grand Prize | IPFS/Filecoin Runner Up): -physical electric grid controlled by an automated Solidity contract.-Chainlink Keepers monitors for LEDs that are on with expired policies using checkUpkeep. -performUpkeep automatically turns off LEDs when an expiration is detected.Bonus project: Chainlink VRFv2 Lightshow -Converts random numbers to be from 1 to 255 for 8 bit LED display -Rinkeby to zkSync 1 WEI deposit on event as event counter

WeiGold [Won: Top Quality Project] (solo): Fair Value Commodities Vending Machine - Servo motors controlled by Ethereum smart contract reading Chainlink pricefeedsDisruptive Insurance [Won: On The Rise]: Volcano Insurance Hybrid Smart Contract - Chainlink API requests get JSON volcano eruption and present time data

-Used Python to control motor connected to VESC with a joystick for test runs-Used Python/OpenCV to detect color landmarks (green, red/magenta) in HSV for different color shades

-Detected correct foundation shades from model photos for Rihanna’s Fenty Beauty * Used Python/OpenCV for feature masking to filter color noise- Used PCA and Spectral clustering to detect patient depression levels based on high dimensional data- Optimizing autonomous micro expression detection with machine learning

-Explained circuit fundamentals in circuit labs to students. -Explained how to debug circuits while fixing circuits on the spot.-Lab material: filters, transistors [BJTs and MOSFETs], amplifiers.

-Automated pneumatic press and pins with solenoid valves to protect packages from sparking-Designed station circuits to add emergency stop button features and increase relay board lifespan -Programmed relay boards and made C# application to plot failing package data as a histogram -Laser marked gasket and lid designs for experiments

-Explained and solved problems with students with subjects up to -Physics 2 -Calculus 2

•Designed Arduino system for measuring vehicle rpm with hall effect sensor•Used carbon fiber to build car seat, and used fiberglass to build splash guard•Designed splash guard CAD model with Solidworks

-Aided DAZN USA launch press conference -set up production equipment -monitored stream quality for issues -Researched and contacted talent regarding media appearances

-Assisted with production equipment on and off sets

-Explained and solved math problems up to Calculus 2 with students