Crypto · DeFi · Fintech
Projects of any complexity: smart contracts, DeFi protocols, exchanges, trading systems, blockchain infrastructure. The full cycle sits inside the team — from architecture to on-call after launch.
In business since 2018. The team grew out of fintech: payment systems, processing, exchange engines. That background shapes the approach — we treat a blockchain project as a financial system with money, risk, reconciliation and reporting.
Protocols, staking, tokenization, vesting, multisigs in Solidity and FunC/Tolk. Covered with tests and fuzzing, prepared for external audit, findings closed.
Nodes, indexers, on-chain monitoring, custody and signing schemes, cross-chain bridges. We hold the load and keep chain state and database in agreement.
Matching engine, order book, clearing, deposits and withdrawals, risk limits. We know the bottlenecks of a trading system and how to measure each one.
Payment gateways, card issuing, processing, KYC/AML, reconciliation and reporting. We have delivered integrations with banks, issuers and data providers.
We take an idea down to a technical spec: model, chain selection, contracts, integrations, risks, effort estimate. The result is a document for an investor or for your own engineering team.
We take the whole project: contracts, backend, frontend, infrastructure, launch. Two-week sprints with a demo at the end of each.
We write the contracts, model the economics, cover them with tests and fuzzing. We walk through the external audit and fix findings before release.
Matching, order execution, market making, low-latency bots, slippage monitoring. On centralized venues latency is counted in micro- and nanoseconds; in DeFi, in milliseconds and position within the block.
Nodes and indexers, Kubernetes, deploys, metrics, alerts, on-call. We leave runbooks detailed enough for your engineer to resolve a night incident without calling us.
Engineers plugged into your process: from a single contract developer to a team with a lead and QA. Repository, code and rights stay with you.
Six directions we cover end to end, from architecture to production. Each one has engineers with hands-on experience and working solutions we adapt to your task.
A card tied to a crypto balance: debit at authorization time, conversion at the current rate, limits and holds. We build the processing, the issuer integration and the KYC/AML flow, and reconcile daily settlement with the provider.
A protocol with liquidity pools and rewards: on-chain logic, economic model, liquidity migration from a previous version. We take the contracts through external audit and close every finding.
Issuing and tracking tokenized assets on smart contracts: holder whitelists, transfer restrictions, payouts, issuer reporting. We add an investor account area and an admin panel with role separation.
A centralized exchange from scratch: matching engine, order book, wallets, deposits and withdrawals, risk limits, admin panel. We split hot and cold circuits, set up balance reconciliation and alerts on mismatches.
Low-latency trading and market making in two arenas. In DeFi the clock runs in milliseconds and block position: a custom execution path, sandwich and MEV protection, a strategy simulator on historical blocks. On centralized venues it runs in micro- and nanoseconds: colocation, network stack, quote feed processing.
Liquid staking on TON: pool contracts, a jetton as the proof of share, reward distribution across validator rounds, entry and exit without waiting for a round. We add a dashboard and node monitoring.
One half-hour call and you have a budget range and a timeline. Free, with no commitment. We sign the NDA before you show any details.
A half-hour call: what the project is, where it stands, what the deadlines are. Then a scope estimate and a budget range.
We sign the NDA before you show the details. Then we work through requirements and draw the architecture: chains, contracts, integrations, milestones.
Two-week iterations, a demo at the end of each, repository and tracker access from day one. When priorities shift, we rebuild the backlog.
We prepare the code for external audit, ship it, set up monitoring and on-call. After that we hand over to your team or stay on support.
It depends on scope: auditing one contract and building an exchange with a matching engine differ by two orders of magnitude. After a half-hour call we give a budget range and a timeline, then tighten both during discovery. The estimate is free and commits you to nothing.
A standard contract — staking, vesting, a token with transfer restrictions — takes two to four weeks including tests and audit preparation. A protocol with its own economics is scoped separately; there most of the time goes into modelling rather than code.
The audit itself is done by an independent team: reviewing your own code is not a valid setup. That said, we have contacts among auditors we have worked with, and we accompany the whole procedure — preparing the code (tests, fuzzing, economic model, a pass over known vulnerability classes), helping you select an auditor, answering questions during the review, closing findings and going through re-verification.
Yes: matching engine, order book, wallets, deposits and withdrawals, risk limits, admin panel, split hot and cold circuits. Licensing and legal stay on your side; the technical part we take in full.
EVM chains (Ethereum and L2s), TON, Solana, Bitcoin, Tron. Contracts in Solidity, FunC and Tolk, Rust. For a chain we have not shipped on, the ramp-up time goes into the estimate as a separate line.
The code, the repository and the rights are yours from the first commit. We sign the NDA before you show project details.
Yes. We provide engineers who plug into your process: from a single contract developer to a team with a lead and QA. They work in your tracker and follow your code review rules.
Describe the task in a couple of paragraphs — we answer within one business day. If you would rather talk, message us on Telegram and we will set up a call.