Senior Solidity/Blockchain Engineer to $4000

We’re a Web3 game studio creating fast-paced, technically refined games with transparent mechanics and well-crafted logic. We work with blockchain infrastructure, blending game development, decentralized technologies, and modern product design. Our mission is to deliver games that are simple to use yet rich in depth, built for a global audience.

You will

• Design and ship EVM contracts for slot mechanics, round lifecycle/settlement, a PlayHub (registry/custody/limits), and rewards (referrals, quests, rakeback).
• Integrate secure randomness (VRF / Pyth Entropy / commit-reveal) and expose clean events for realtime clients/indexers.
• Keep security/gas tight: CEI, pull-over-push, access control, pausability, exposure caps.

• Write real tests in Foundry (units + a few properties/invariants/fuzz).

   

Must-have

• 2+ yrs Solidity, 2+ production deployments you owned.
• Event-driven design (ordering, dedup by (txHash, logIndex), finality/reorg awareness).
• Experience with pro-rata distributions/claims (rounding, dust control).

• Gas & security literacy (custom errors, packing, immutables; reentrancy/MEV/oracle basics).

   

Nice to have

• Slot math (RTP/volatility tuning), jackpots, reward streaming/vesting.
• UUPS/EIP-1967 upgrades, EIP-712/permit, The Graph/Subsquid.
• VRF/Entropy in production.