Smart Contract Solutions
OQTACORE designs upgradeable smart contracts with careful proxy architecture, governance controls, storage layout safety, migration planning, testing, and operational guardrails.
Keep the ability to fix bugs and ship new features without giving any single key the power to drain the protocol.
Senior engineers, security-aware architecture, and an operations-ready handoff. Every engagement is scoped to your specific product, chain, and timeline.
Senior Solidity (and Rust where the chain demands it) with explicit invariants, role separation, and upgrade paths defined up front.
Unit, integration, fork, fuzz, and invariant tests — not coverage theater. Tests catch regressions and stop bad upgrades.
Threat modeling per module, automated scanning, manual review, and audit-prep so external auditors find nothing surprising.
Deterministic deployment scripts, source verification, network bootstrapping, role configuration, and admin handoff.
Pause flows, multisig wiring, alerting, dashboards, runbooks, and on-call coverage for the first weeks of production.
Frontend, backend, indexers, wallets, payments, custodians, and analytics so contracts ship as part of a working product.
Predictable milestones, clear ownership, and a security pass on every meaningful change. No mystery between scoping and launch.
Map assets at risk, user roles, integrations, regulatory context, and acceptance criteria so we agree on what success looks like before any code is written.
Choose chain, language, contracts, services, and integrations. Lock in scope, milestones, ownership, and how third-party teams plug into the build.
Senior engineers ship in short cycles with code review on every change, security checklists per module, and tests written next to the code that needs them.
We re-read the code as adversaries: reentrancy, oracle and MEV exposure, access control, accounting precision, upgrade safety, and operational keys.
Deploy to testnets and staging environments with full frontend, indexer, and monitoring integration. Fix what only shows up under realistic conditions.
Coordinate audit findings, plan rollout, deploy with verification, set up monitoring and alerts, and stay on for the first weeks of production.
Tell us about your product, chain, timeline, and the outcome you need. We will reply within one business day with a clear next step — a scoping workshop, an audit, or a delivery plan.
Five fields. We respond within one business day.
We pick tools because they make the product safer, faster, or easier to operate — not because they are trending. Here is what tends to show up in upgradeable smart contracts work.
We design upgrade paths the way infrastructure teams design deployments — with documented procedures, role separation, and rollback plans.
We are particularly useful for teams in fintech, DeFi, RWA tokenization, digital asset custody, exchanges, gaming, and enterprise blockchain — domains where software reliability has direct financial consequences.
We begin with a short technical scoping workshop. Together we identify the target chains, standards, user roles, admin permissions, upgrade needs, integrations, and launch timeline. From there we propose a delivery plan with milestones and acceptance criteria.
You can engage OQTACORE for a focused contract build, audit preparation, security remediation, integration sprint, or a full product squad covering frontend, backend, smart contracts, QA, DevOps, and analytics.
Most engagements pair upgradeable smart contracts with a few neighbours. Open the ones closest to your project to see how we deliver them.
Design, build, test, and deploy production smart contracts for DeFi, tokens, RWA, payments, DAOs, and Web3 apps.
Security review, automated scanning, manual exploit analysis, and remediation guidance before mainnet launch.
Solidity engineering for Ethereum and EVM chains: account abstraction, upgradeable contracts, and protocol integrations.
AMMs, lending, staking, vaults, derivatives, liquidity incentives, and risk-controlled DeFi protocol modules.
Launch a focused MVP with product discovery, UX, backend, integrations, analytics, and investor-ready delivery.
Build blockchain networks, protocols, integrations, wallets, data services, and production Web3 applications.
The answers most teams ask for before scoping a project with us.
A small, well-scoped module can take 2–4 weeks. A protocol, tokenization workflow, marketplace, or DeFi system can take 6–16+ weeks depending on integrations, testing depth, audit requirements, and governance complexity.
Yes. We can review existing contracts, improve tests, fix vulnerabilities, add features, prepare for audit, or integrate the contracts with backend and frontend systems.
Yes. We provide internal security review and audit-preparation support, and we can also help resolve third-party audit findings. For high-value launches, an independent external audit is still recommended.
We commonly work with Ethereum and EVM-compatible networks, and can support other ecosystems depending on scope. Chain choice is usually part of the architecture discussion.
Yes. OQTACORE can deliver the frontend, backend, wallet flows, APIs, indexing, analytics, admin panels, CI/CD, monitoring, and documentation needed to turn contracts into a product.
Send a few lines about your project. We will reply within one business day with a clear next step — a scoping workshop, a security review, or a delivery plan with milestones.
Prefer a longer brief or want to share an NDA before we exchange details? Mention it in the message and we will route it appropriately.
One business day reply. NDA on request.