Hire a Web3.js Developer for your team.
Builds and maintains JavaScript integrations using the web3.js library. Available full-time, part-time, hourly or by project.
- 7-day risk-free trial
- NDA and IP protection
- Onboard in 48 hours
Tell us who you need.
What a Web3.js Developer does for you.
Builds and maintains JavaScript integrations using the web3.js library. This role is useful when you have an existing codebase built on web3.js, or need to maintain or migrate one.
Core skills
- web3.js
- JSON-RPC
- Contract calls
- Library migration
- Build dApp interfaces and wallet flows
- Connect contracts to APIs and indexers
- Handle transactions, errors and chain switching
- Monitor infrastructure and user journeys
When this role makes sense.
Contracts exist but the product does not
Wallet drop-off is hurting conversion
You are adding Web3 to an existing app
Ready to hire a Web3.js Developer?
Share your requirements and get matching profiles within 24 hours.
Three simple steps, no hiring fees.
Share your requirements
Tell us the role, the work and your goals. We share matching profiles within 24 hours.
Interview and select
Interview the people you like. Technical rounds and trial tasks are up to you, at no charge.
Onboard and start
Sign the NDA and the person joins your tools and meetings, usually within 48 hours.
Flexible terms, low risk.
7-day risk-free trial
Not satisfied in the first 7 business days? Get a replacement or end it at no charge.
NDA and IP protection
We sign both before work starts, and you own everything that is produced.
Free replacement
If the fit is wrong, we arrange a replacement with a structured handover.
Easy exit
Scale down or stop with 15 days’ written notice.
Looking for a different role?
Hiring a Web3.js Developer, answered.
Still unsure? Talk to a strategist.
- Profiles within 24 hours
- NDA signed before any discussion
- 7-day risk-free trial
What does a Web3.js Developer do?
Builds and maintains JavaScript integrations using the web3.js library. Typical work includes: build dApp interfaces and wallet flows; connect contracts to APIs and indexers; handle transactions, errors and chain switching; monitor infrastructure and user journeys.
How do we evaluate a Web3.js Developer?
Ask how they handle provider errors, event subscriptions and library upgrades. They should know when moving to a newer library would be worth the effort.
What skills should a Web3.js Developer have?
Look for hands-on experience with web3.js, JSON-RPC, Contract calls, Library migration, plus clear communication and evidence of similar work.
When should we hire a Web3.js Developer?
This role is a good fit when: contracts exist but the product does not; wallet drop-off is hurting conversion; you are adding Web3 to an existing app.
How quickly can a Web3.js Developer start?
We share matching profiles within 24 hours. After you interview and choose, onboarding usually takes 48 hours.
Who owns the work?
You do. We sign an NDA and an IP assignment agreement before work starts, and everything produced belongs to your business.
What if the person is not the right fit?
Every hire starts with a 7-day risk-free trial. After that, you can request a replacement or end the engagement with 15 days’ written notice.