Senior Web3 Engineer

2 weeks ago

Ahmedabad, Gujarat, India CognyX AI Full time ₹ 8,00,000 - ₹ 16,00,000 per year


Hiring: Senior Web3 Engineer (EVM Perps)
— Matrix DEX (No-KYC Derivatives Platform)

We're building Matrix DEX
— a global, no-KYC, non-custodial perpetuals platform. V1 will ship on an EVM-only stack using GMX v2 for crypto perps (BTC/ETH/SOL) and Gains Network for equity/index exposure (TSLA/SPX). Later phases may add Gains, DyDX, Hyperliquid/SOR and internal LP vaults.

What you'll build (first 6–8 weeks):

  • (TypeScript) trading app:
    markets list, trade ticket (long/short, leverage, TP/SL), positions/PnL, order history, funding display.
  • GMX v2 integration (Arbitrum)
    : ExchangeRouter writes, Reader/DataStore reads, Subsquid history, REST market data.
  • Gains/dydx Network integration
    : trading calls + event/indexing for stocks & indices.
  • Fee plumbing
    : UI fee receiver & referrals routed to Gnosis Safe; daily fee dashboard.
  • GeoIP gate + legal pages (front-end only, contracts permissionless).
  • Stateless indexer services: funding, OI, liq levels, oracle heartbeat; metrics to Grafana/Prometheus with Slack/Telegram alerts.

Must-have skills

:

  • T
    ypeScript, , Zustand/Redux, React Query.
  • EVM tooling
    : wagmi/viem, Ethers basics, event decoding, calldata building.
  • DeFi/perps experience with GMX v
    2 (ideally GMX v2 or similar): opening/closing perps, TP/SL orders, funding/PnL math.
  • Subgraphs/GraphQL (Subsquid/The Graph)
    and REST/WS market data ingestion.
  • Security + ops mindset:
    multisig flows (Gnosis Safe), RPC failover, observability.

Nice-to-have:

  • Gains Network (gTrade) integrator experience.
  • Exposure to Hyperliquid APIs (EIP-712 signing), dYdX/Injective/Drift ecosystems.
  • micro-services, PostgreSQL, Redis; AWS/GCP; Grafana/Prometheus.
  • Chainlink/oracle sanity checks; runbooks for market pauses/oracle issues.

Day-1 environment:

  • + TS + wagmi/viem
  • Arbitrum RPC (dual vendor), GMX REST endpoints + Subsquid, contract ABIs (ExchangeRouter/Reader/DataStore/ReferralStorage/EventEmitter)
  • Gnosis Safe for fee routing; Slack/Telegram for alerts

Success looks like:

Place/close perp trades on GMX v2 mainnet with accurate PnL, funding, liq in UI.

  • UI fee captured to our Safe and visible in daily reports.
  • GeoIP gate + disclaimers live; monitoring & alerts green.
  • Engagement & compensation
    Full-time contract (2–3 months) with option to extend/convert.
  • Competitive compensation (USD/INR) based on experience; immediate start.

How to apply:

Send a DM with subject "Matrix DEX — Senior Web3 Engineer" and include:

  • GitHub/portfolio + 1–2 relevant perps/DeFi repos.
  • A short note on your GMX v2 or similar integrations (bullets).
  • Your timezone, availability, and expected monthly/weekly rate.
  • If you've shipped a createOrder flow (GMX v2) or a PnL/funding module before, you'll be fast-tracked. Let's build the cleanest no-KYC perps experience on EVM.

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