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DevTrios — Engineering Partner
Crypto Wallet Development

Wallets built to hold real value.

A wallet has one job it can never get wrong, and one bad day it has to survive.

We design and build secure crypto wallets that prioritise asset protection, usability, and long-term scalability — from non-custodial and mobile wallets to enterprise-grade integrations for Web3 platforms, NFT ecosystems, and payment systems.

  • Secure key management
  • Mobile, web & Web3 wallets
  • Multi-currency and NFT support
  • Enterprise-ready integrations
Vault.keystoreCHECKING 0/5
01generateSeed()
02encryptVault()
03signTransaction()
04connectDapp()
05recoverWallet()
What we build

It isn't six services. It's one wallet.

Point at any part of the wallet stack to read what we do there — and what comes back.

01

Custom Crypto Wallet Development

Bespoke wallet solutions built around your business model, asset types, and user flows — starting with the custody decision everything else depends on.

keystore · derivation
How we work

You can read our process as a build log.

Every stage runs commands and has to return clean output before the next one starts. Step through it below.

Pipeline stages

devtrios — stage 01/05

We define wallet type, custody model, supported assets, and security requirements — the custody decision first, because it constrains everything after it.

$devtrios scope --product wallet

custody: non-custodial

chains: 4

recovery model agreed

architecture signed off

// a stage only closes when its output comes back clean

Who it's for

How hard a wallet has to be depends on what it guards.

Find your position on the scale — it decides how much of the work below actually applies to you.

Web3 startups

position 01 of 05first wallet

You need users to hold assets without handing that job to a third party. The first build stays small: one custody model, a few chains, and a recovery flow that genuinely works.

Typically

non-custodial core · 1–2 chains · seed backup

Why Devtrios

We build against how wallets actually lose funds.

Wallets rarely fail at cryptography. They fail at logs, backups, confirmation screens, and dependencies. Here is that list, and what we do about each one.

RISK 01

Key material leaking

A private key that reaches a log file, a crash report, or an analytics payload.

Keys are generated and used inside secure storage, never serialised into application state, and our builds are checked to confirm no key material can reach logs, telemetry, or backups.

secure enclaveencrypted keystoreno key in logs
RISK 02

Recovery that does not work

The backup users never tested, discovered on the day their phone dies.

Recovery is treated as a first-class flow — the backup is verified at setup, restore is tested from a wiped device before release, and the wording assumes a frightened user.

verified backuprestore rehearsalplain-language flows
RISK 03

Blind signing

A confirmation screen that shows a hex blob and asks the user to approve it.

Transactions are decoded and explained in the interface — what is being sent, to whom, and what permission is granted — with unlimited approvals surfaced rather than hidden.

decoded transactionsapproval limitsscoped permissions
RISK 04

Malicious dApp connections

One careless connection handing a site more access than the user imagined.

dApp sessions are scoped per origin with explicit, revocable permissions, and connections are listed somewhere the user can actually find and cut off.

per-origin scopingrevocable sessionsconnection registry
RISK 05

Supply chain compromise

A dependency update that quietly ships someone else's code inside your wallet.

Dependencies are pinned and reviewed, builds are reproducible and signed, and the release pipeline is locked down — because a wallet is a very attractive place to hide.

pinned dependenciessigned buildslocked release pipeline

Trusted by startups, enterprises, and governments worldwide

Technology Stack

The stack behind the platforms we build.

We choose tools for the outcome they deliver, not for the trend they follow.

Wallet Engineering

8 tools
WalletConnect
Coinbase
Ethers.js
Web3.js
Solidity
Rust
thirdweb
Alchemy
Based on 0+ verified client reviews
4.9/ 5.0
4.9 on Google, 5.0 on Clutch and GoodFirms
0%
Client Satisfaction
0+
Verified Reviews
0%
Client Retention

“Knowledgeable, professional, and responsive — Devtrios added real value at every step of our project and delivered exactly what we needed.”

C
Connie Woo
Founder, Fintech Startup
Ratings & Reviews

Where Our Clients Rate Us 5 Stars

Our clients don't just work with us, they recommend us — 4.9 on Google, 5.0 on Clutch and GoodFirms. Every badge below links straight to the profile it comes from. Independent reviews keep pointing to the same three things: strong technical expertise, clear communication, and delivery you can rely on.

Recognised on

Verified reviews
Our Services
FAQ

Crypto Wallet Development FAQs

Everything you might want to know before we talk. Still unsure? A quick call clears it up.

Ask us anything

We build custodial, non-custodial, Web3, mobile, web, and enterprise wallet solutions based on your requirements.

Most wallet projects take 8–16 weeks depending on complexity, supported assets, and integrations.

We use encrypted key storage, secure signing, authentication layers, and extensive testing to reduce risk.

Yes. We provide wallet integration services for existing Web3 platforms, marketplaces, and enterprise systems.

Yes. We provide long-term maintenance, upgrades, and security updates.

Let's work together

Ready to build a secure crypto wallet?

Let's design a wallet solution that protects assets, earns user trust, and scales with your platform.

Contact

Start Your Next Project with Devtrios

Tell us about your idea or business needs. Our team will review your requirements and get back to you within one business day with a clear plan, timeline, and a free consultation call.

Contact Information
info@devtrios.com+44 7470 801776
Avenue Road, SE25 4DX, London, United Kingdom
Connect With Us

Let's Discuss Your Project