How do I find remote Web3 jobs?

Visit hashtagweb3.com/jobs and use the search bar to filter by "remote". You can also use the REST API: GET https://hashtagweb3.com/api/jobs?search=remote&limit=20

What is the average salary for a Solidity developer?

Solidity developers typically earn between $120,000-$250,000 USD per year depending on experience, seniority, and protocol. Use the salary calculator at hashtagweb3.com/salary-calculator for current market benchmarks.

Does Hashtag Web3 have a public API?

Yes. Hashtag Web3 offers a free, unauthenticated public REST API at https://hashtagweb3.com/api with endpoints for jobs (/api/jobs), news (/api/news), events (/api/events), and glossary (/api/glossary). The OpenAPI 3.1.0 spec is at /openapi.json.

Web3 refers to a decentralized internet built on blockchain technology, smart contracts, and token-based economics. It encompasses DeFi (decentralized finance), NFTs, DAOs (decentralized autonomous organizations), and permissionless protocols. See the full glossary at hashtagweb3.com/learn.

How can AI agents use Hashtag Web3?

AI agents can use the public REST API at /api/jobs, /api/news, /api/events, and /api/glossary with no authentication required. The platform also supports NLWeb natural language queries at POST /ask, machine-readable JSON at /?mode=agent, and the OpenAPI spec at /openapi.json for function calling.

Dapp Launch Checklist for Frontend Developers

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Wallet Integration

Ensure smooth wallet connectivity.

Support all major wallets

critical

MetaMask, WalletConnect, Coinbase Wallet, Rainbow at minimum.

Handle wallet not installed gracefully

important

Show installation links when wallet extension is missing.

Persist connection across sessions

important

Remember connected wallet. Auto-reconnect on page load.

Support mobile wallet browsers

critical

Test in MetaMask mobile, Trust Wallet, and Coinbase Wallet browsers.

Handle account changes correctly

critical

React to accountsChanged event. Update UI and refetch data.

Handle chain changes correctly

critical

React to chainChanged event. Prompt network switch if wrong chain.

Implement clean disconnect flow

important

Clear connection state and cached data on disconnect.

Show connected wallet address

important

Display truncated address and ENS name if available.

Transaction Handling

Manage the full transaction lifecycle.

Show clear transaction preview

critical

Display what will happen before user signs. Show amounts, recipients.

Estimate gas accurately

important

Show estimated gas cost in native token and USD.

Handle pending state correctly

critical

Show loading indicator, disable retry, display pending toast.

Track transaction confirmation

critical

Poll for receipt. Update UI when confirmed.

Handle transaction failure gracefully

critical

Parse error messages. Show user-friendly failure reason.

Provide block explorer links

important

Link to Etherscan/explorer for transaction details.

Handle user rejection

critical

Detect when user cancels in wallet. Reset UI appropriately.

Support transaction speed-up/cancel

nice-to-have

Allow users to speed up or cancel pending transactions.

Error Handling & Edge Cases

Handle all error scenarios gracefully.

Handle RPC errors

critical

Catch and display RPC failures. Offer retry option.

Handle insufficient funds

critical

Check balance before enabling actions. Show clear message.

Handle insufficient allowance

critical

Detect when approval is needed. Guide user through approval.

Handle contract reverts

critical

Parse revert reasons. Display human-readable error.

Handle network congestion

important

Suggest higher gas when transaction is stuck.

Handle stale data

important

Show loading states. Prevent actions on outdated data.

Handle offline state

important

Detect offline. Show appropriate message and disable actions.

Implement global error boundary

important

Catch unexpected errors. Show recovery option.

Security & Safety

Protect users from attacks and mistakes.

Validate all user inputs

critical

Sanitize addresses, amounts, and other inputs.

Verify contract addresses

critical

Hardcode or validate contract addresses. Never trust URL params.

Show transaction simulation results

important

Use Tenderly or similar to show expected outcome.

Warn on high slippage

important

Alert users when slippage exceeds safe thresholds.

Implement phishing protection

important

Show domain verification. Warn about suspicious sites.

Secure API keys

critical

Use environment variables. Never expose private keys in frontend.

Validate network before transactions

critical

Confirm user is on correct chain before sending.

Rate limit sensitive operations

important

Prevent rapid-fire transactions that could drain wallets.

Performance & Reliability

Ensure fast, reliable user experience.

Configure RPC fallbacks

critical

Multiple RPC providers with automatic failover.

Implement request caching

important

Cache contract reads. Use SWR or React Query.

Optimize bundle size

important

Tree-shake unused code. Lazy load heavy components.

Set up CDN and caching

important

Use CDN for static assets. Configure cache headers.

Implement loading skeletons

important

Show placeholder content during data fetching.

Test under poor network conditions

important

Verify app works on slow/unstable connections.

Set up error monitoring

important

Use Sentry or similar for production error tracking.

Monitor RPC usage and costs

nice-to-have

Track API calls. Optimize to reduce costs.

Production Deployment

Deploy and verify production build.

Update contract addresses for mainnet

critical

Switch from testnet to mainnet contract addresses.

Configure production RPC endpoints

critical

Use paid RPC services for reliability.

Enable production analytics

important

Set up Mixpanel, Amplitude, or custom analytics.

Verify CSP and security headers

important

Configure Content Security Policy to prevent XSS.

Test production build thoroughly

critical

Full end-to-end testing on production deployment.

Set up IPFS backup

nice-to-have

Deploy to IPFS for censorship-resistant hosting.

Configure custom domain

critical

Set up domain, SSL, and DNS correctly.

Monitor uptime

important

Set up uptime monitoring and alerts.

Key Recommendations

Test with real wallets on testnet first: Don't rely only on local testing. Real wallets behave differently.

Parse every possible error type: Users blame your app, not their wallet. Make errors crystal clear.

Cache aggressively, invalidate correctly: Balance between fast UI and accurate data. Invalidate on tx confirmation.

Support hardware wallets explicitly: Ledger and Trezor have different flows. Test them specifically.

Build for mobile-first: More users access dapps via mobile wallets than desktop extensions.

Looking for Web3 Opportunities?

Explore curated, high-impact roles across top blockchain protocols and Web3 startups.

Dapp Launch Checklist for Frontend Developers

Wallet Integration

Transaction Handling

Error Handling & Edge Cases

Security & Safety

Performance & Reliability

Production Deployment

Key Recommendations

More Guides for Web3 Frontend Developers

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