Isaac Adewumi

Remote, Berlin

• Shipped Solana support end to end: transaction decoding, spam token filtering, and chain-specific asset handling.
• Delivered historical balance tracking from scratch: transaction replay for fine-grained balances, archive node queries for native and ERC20 balances, with snapshotting and cache invalidation underneath.
• Migrated 10+ API endpoints off hardcoded USD valuation to a user-selected display currency.
• Integrated Balancer v1/v2, Aura Finance, Beefy, Yearn, and StakeDAO, plus Coinbase ED25519 API keys and Binance Convert trades.

Nigeria

• Delivered policy management and provider onboarding for an API-first insurance platform.
• Built the distribution workflows partners used to embed insurance products across African markets.

Part-time, Remote

• Cofounded an early Algorand payment-link platform on an Algorand Foundation grant.
• Designed and shipped the Django backend: payment links, merchant APIs, API keys, wallet setup, transaction verification, webhooks, and revenue reporting.
• Ran the payment lifecycle on-chain: creation, tracking, verification, and reconciliation.
• Published the merchant JavaScript SDK, its API surface, and the integration docs.

Remote, Berlin

• Removed the Uniswap V3 subgraph dependency by moving retrieval fully on-chain.
• Cut Electron memory usage by about 30% by revamping asset management endpoints.
• Added Average Cost Basis and HIFO accounting, Taproot BTC addresses, and spam NFT filtering.
• Decoded transactions for Uniswap V2/V3, Sushiswap, Curve, and MakerDAO.

Remote, Lagos

• Built a Swift native module for the Algorand SDK in React Native, Django REST Framework endpoints, and web wallet integrations.