US-based Solidity developers · Blockchain
Senior Solidity developers for blockchain and Web3 teams, based in the US
Engineers who treat security and testing as non-negotiable and build protocols and back-ends ready for outside audit.
- Every engineer lives and works in the US
- Works your hours, joins your standups
- NDA and full IP assignment from day one
Book your 15-minute call Free, no-obligation. Takes 15 minutes.
Most teams interview matched engineers within a week
Not the right fit? We bring in a replacement
Book your call: tell us what you need
"NextGen scaled us from 2 to 7 dedicated engineers in under a quarter. Enterprise-grade capacity, zero agency drag."
"Their R&D tax credit workflow platform paid for itself in the first filing season."
"AI-native from day one. Our IRS transcript pipeline runs 24/7 without a human in the loop."
"Property tax appeals used to take weeks. Their comp analysis tooling turned it into hours."
"The AI intake agent handles our tier-1 patient calls with a hand-off cleaner than our old call center."
"POS, inventory, ordering — all unified. We finally have one source of truth across every location."
"The procurement platform paid for itself in the first quarter of use."
"They shipped our matching engine in 6 weeks. Our old team would've taken 6 months."
"Enterprise-grade delivery without the enterprise-agency price tag."
"Their team plugged into our sprint on day one. Zero ramp time."
"NextGen scaled us from 2 to 7 dedicated engineers in under a quarter. Enterprise-grade capacity, zero agency drag."
"Their R&D tax credit workflow platform paid for itself in the first filing season."
"AI-native from day one. Our IRS transcript pipeline runs 24/7 without a human in the loop."
"Property tax appeals used to take weeks. Their comp analysis tooling turned it into hours."
"The AI intake agent handles our tier-1 patient calls with a hand-off cleaner than our old call center."
"POS, inventory, ordering — all unified. We finally have one source of truth across every location."
"The procurement platform paid for itself in the first quarter of use."
"They shipped our matching engine in 6 weeks. Our old team would've taken 6 months."
"Enterprise-grade delivery without the enterprise-agency price tag."
"Their team plugged into our sprint on day one. Zero ramp time."
// trusted by
// partners & platforms
// certifications & recognition
// conferences & events
Sound familiar?
- Security mistakes are permanent and expensive.
- Vetting offshore Web3 talent is hard.
- Audits keep finding issues late.
- You need senior people who can own protocol decisions.
Get matched engineers this week One call. Matched profiles. You pick who to interview.
What our Solidity engineers build for blockchain and Web3 teams
Protocols & infrastructure
Contracts, indexers, and node tooling built and documented for audit.
Smart contracts
Solidity contracts with full test coverage, built for audit.
Security review prep
Code hardened and documented before it goes to an outside auditor.
How it works
- 01
15-minute call
Tell us what you need built or fixed and where it's stuck.
- 02
Matched profiles
You meet US-based engineers with directly relevant work behind them.
- 03
You interview
Run your own technical interview. You only move forward with people you pick.
- 04
They start shipping
Onboarded into your repo, tools, and review process, with a weekly written update.
// faq
Frequently asked questions
- Are your developers really based in the US?
- Yes. Every engineer lives and works in the United States. No offshore subcontracting and no hand-offs to another team. That's written into the contract.
- How fast can someone start?
- Most teams interview matched engineers within a week of the first call. Start dates depend on your interview process.
- Who owns the code?
- You do. Every engineer signs an NDA and full IP assignment before touching your code.
- What if the fit isn't right?
- Tell us and we'll bring in a replacement with a proper hand-over, so nothing gets lost.
// let's build something
Start your project request
Tell us what you're building — engineering capacity, AI, QA, cloud, or a fixed-scope software engagement. Our NYC team responds within one business day.
// what to expect
- Response within 1 business day
- 30-minute discovery conversation
- Recommended engagement model & pricing
- NYC-focused — in-person available
Start Project Request
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