Reviewed by Dr. Dmytro Nasyrov, Founder and CTO
Our blockchain development process prioritizes security at every stage.
Aligned with these frameworks. Audit reports and certifications available on request.
Reviewed by Dmytro Nasyrov
Founder and CTO
23+ years in custom software development. Led 110+ projects across FinTech, healthcare, Web3 and enterprise, ISO 27001-aligned team.
When to use a specialized blockchain security partner versus building internal smart contract capabilities
| Factor | Pharos Blockchain Delivery | In-House Solidity Team |
|---|---|---|
| Security track record | Zero critical post-deployment findings across 60+ mainnet contracts | Depends on team experience and audit history |
| Audit network | Pre-established relationships with 5 top audit firms | Must source and negotiate audit engagements individually |
| Cost (first contract) | $50K-180K including internal review and audit coordination | $300K-500K for 2 Solidity engineers (salary + audit costs) |
| Time to mainnet | 8-15 weeks with parallel audit scheduling | 12-24 weeks including audit queue wait times |
| Formal verification | Standard practice for fund-handling invariants | Rarely adopted due to tooling learning curve |
| Cross-chain experience | Deployed on 8+ EVM chains and Solana | Typically deep expertise on 1-2 chains |
Our blockchain delivery framework operates in five phases: architecture and threat modeling (1-2 weeks), smart contract development with unit and fuzz testing (3-6 weeks), internal security review and formal verification (1-2 weeks), external audit coordination and remediation (2-4 weeks) and staged mainnet deployment with monitoring (1 week).
Pharos Verified Delivery applied to 110+ production applications since 2013
How our blockchain delivery methodology translates to secure, audited production deployments
In-house team shipped lending contracts without formal audit. $180K in user funds at risk from reentrancy vulnerability found by white-hat researcher.
Rebuilt with Pharos methodology: proxy upgradeable architecture, 100% branch coverage fuzz tests, two independent external audits. Zero critical findings on mainnet. $12M TVL within 3 months.
The original code worked correctly for the happy path. The vulnerability was in the liquidation flow that only triggered under specific collateral ratio conditions. Our fuzz testing harness found it in 8 minutes because we model adversarial scenarios, not just user journeys.
Marketplace using third-party contract templates with no customization. 22% royalty bypass rate. No on-chain governance for fee changes.
Custom ERC-721A contracts with enforced royalties via operator filter registry. Multi-sig governance for marketplace parameters. Royalty bypass rate dropped to 0.3%.
We deployed on testnet for 6 weeks with a bug bounty before mainnet. Three medium-severity findings came from the bounty program. All three were edge cases in the batch minting flow that our unit tests missed because we had not modeled gas-limit-triggered partial mints.
Bridge operating with single relayer and no fraud proofs. Industry peer bridges suffering exploits. Board demanded security overhaul.
Rebuilt with optimistic verification, multi-relayer consensus and automated circuit breaker that halts transfers if anomaly detection triggers. Two external audits with zero critical findings.
The circuit breaker was the most controversial design choice. It introduces centralization, but the alternative is $200M loss events. We implemented time-locked governance to remove the circuit breaker once the protocol matures and fraud proofs are battle-tested.
Client names anonymized under NDA. Full case studies at /cases/.
We decline roughly 30% of RFPs we receive. Forcing a bad fit costs both sides 3-6 months and damages outcomes. Here is how we think about scope:
We will not ship unaudited smart contracts to mainnet if they handle user funds. If your timeline cannot accommodate a proper security review, we will recommend a phased approach: deploy non-financial components first, then add fund-handling contracts after audit. We have declined projects where the client insisted on skipping audit to meet a marketing deadline.
Pharos blockchain portfolio
Observations from 22 smart contract and blockchain engagements 2019-2026 across DeFi, NFT, RWA, payments and enterprise chain portfolios.
16 of 22 projects we inherited had unit-only test coverage; invariant testing found exploitable issues on 11 of those 16 within the first sprint.[6]
Upgrade path exploits accounted for 4 of 7 post-launch incidents we were called to triage. All 4 used hand-rolled proxy patterns; none used audited OpenZeppelin UUPS or transparent proxy.
Gas regression on inherited projects averaged 18% drift over 6 months without gas CI. Projects with gas budget CI held drift under 4%.
Oracle manipulation was the #1 unmodeled attack surface on 9 of 22 projects. Adding attack scenarios plus fallback oracles was a 2-sprint investment that prevented 2 documented exploit attempts post-launch.[3]
Blockchain build methodology outlook 2026-2027 moved decisively from monolithic L1 deployments toward L2-native, account-abstraction-aware architectures with invariant-driven testing and formal verification on critical paths.
Arbitrum, Optimism, Base and zkSync replaced L1-only deployments for most dApp and wallet builds as gas economics made L1-only designs uneconomic outside settlement scenarios.[9]
ERC-4337, smart wallets and gas sponsorship became the default user-facing wallet surface rather than an experimental add-on.[8]
Foundry invariants, Echidna and Medusa plus audit-grade formal verification on settlement paths became the baseline rather than coverage-only unit tests.[6]
UUPS, transparent proxy and beacon patterns replaced hand-rolled proxy designs after multiple 2023-2024 upgrade-path exploits.[4]
Evaluate a blockchain engagement at the 90-day mark using this 8-point check before signing off on production deployment.
At least 20 protocol invariants covering reentrancy, access control, arithmetic and upgrade paths.
Echidna or Foundry invariants run in CI with named corpora.
External audit from a named firm or 2-week Trail of Bits / Consensys Diligence-style internal audit.[6]
P50 and p99 gas for each user-facing flow documented and tracked in CI with regression alert.
UUPS or transparent proxy with timelock, tested on fork of current state.[4]
Every imported contract pinned, audited and documented.
Price and data oracles have attack model, fallback and manipulation test coverage.
Multisig signers, deployer keys in KMS and post-deployment verification checklist.
Production post-mortem
TVL target 180M. The original contract set had 91% line coverage and passed every unit test. Day 3 of our pre-audit pass, Foundry invariant testing found a reentrancy path via an upgradeable hook that unit tests had missed because every unit test used the same mock hook. We added 14 protocol-level invariants covering solvency, collateralization ratios and upgrade invariants. Those invariants found 3 more issues including a rounding error that would have drained 0.4% of TVL per day under adversarial borrowing. We also formalized the settlement path with a Certora spec.[3]
The rule every Pharos blockchain engagement now ships with: invariant tests are primary; unit tests are secondary; formal verification on settlement paths is non-negotiable for any protocol above 5M TVL.
Published record
Technical articles, comparison guides and methodology deep-dives we write from our own delivery experience.
Trusted by Coinbase, Consensys, Core Scientific, MicroStrategy, Gate.io and 10+ more Web3 and enterprise platforms
16+ partnersOur 16 technology partners include:
Founder and CTO Pharos Production
I design and build reliable software solutions - from lightweight apps to high-load distributed systems and blockchain platforms.
PhD in Artificial Intelligence, MSc in Computer Science (with honors), MSc in Electronics & Precision Mechanics.
13 years in architecture of great software solutions tailored to customer needs for startups and enterprises
23 years of practical enterprise customized software production experience
Lecturer at the National Kyiv Polytechnic University
Doctor of Philosophy in Artificial Intelligence
Master's degree in Computer Science, completed with excellence
Master's degree in Electronics and precision mechanics engineering
Pharos Production offers three project models, MVP, Full-fledged Production and Full-cycle Development, priced from $10,000 to $80,000. An MVP prototype takes about 3 months.
Current-state audit, use-case validation and strategic roadmap for your leadership team.
Deep-dive assessment, technology selection, architecture blueprint and phased implementation plan.
Full advisory retainer covering strategy, delivery oversight, governance and change management.
Prices vary based on project scope, complexity, timeline and requirements. Hourly rates range from $35 to $75 depending on role and seniority. Contact us for a personalized estimate.
Need extra hands on your software project? Our developers can jump in at any stage - from architecture to auditing - and integrate seamlessly with your team to fill any technical gaps.
Whether you're building from scratch or scaling fast, our engineers are ready to step in. You stay in control, and we handle the code.
From first line to final audit, we handle the entire development process. We will deliver secure, production-ready software, while you can focus on your business.
Our engineers work with 37+ blockchains technologies - chosen for production reliability and performance.
Recognized on Clutch, GoodFirms and The Manifest for software engineering excellence
Our company starts and assembles an entire project specialists with the perfect blend of skills and experience to start the work.
We'll design, build and launch your MVP, ensuring it meets the core requirements of your software solution.
We'll create a complete software solution that is custom-made to meet your exact specifications.
Our company will be right there with you, keeping your software solution running smoothly, fixing issues and rolling out updates.
Original research on smart contract audit cost trends, bug density per 1k LOC, common vulnerability classes 2024-2026 and what audit quality actually means - drawn from 30+ Pharos engagements and tier-1 industry data.
This guide breaks down the Web3 development stack in 2026 and explains how modern teams choose blockchain tools that hold up in production. You will learn how wallets, smart contracts, nodes, indexing, storage and observability fit together and what tradeoffs developers should consider for security, performance and cost. Use it as a practical reference for planning architecture and shipping reliable Web3 applications.
A DeFi protocol is the hardest kind of software to ship well: the code is public, the money is real and a single missed edge case can drain the whole treasury in one transaction. Building one is less about writing clever contracts and more about a disciplined architecture and a security process that assumes attackers […]
How long does blockchain development take? Blockchain development timelines range from 2 weeks for simple token contracts to 12+ months for complex multi-chain ecosystems. The timeline depends on smart contract complexity, security requirements, number of chain integrations and regulatory compliance needs. Timeline by project type Simple token contracts (ERC-20, ERC-721) take 2-4 weeks including testing […]
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The discovery phase maps your business process to on-chain versus off-chain responsibilities, selects the appropriate network (Ethereum, Polygon, Avalanche or a private chain) and identifies regulatory requirements such as MiCA or AML obligations. Output is a system architecture document, a smart contract interface specification and a risk register reviewed with you before any code is written.
A single-token or staking contract with standard patterns takes 8-12 weeks to reach mainnet. A multi-contract DeFi protocol or tokenized-asset platform with formal verification and external audit runs 20-32 weeks. Pharos budgets four weeks minimum for external audit and remediation - skipping or compressing audit to hit a launch date is a risk Pharos will not accept on behalf of a client.
A scoped smart contract deployment (one to three contracts, standard patterns, internal testing) starts around $30,000-$60,000. A full protocol with custom tokenomics, multi-contract architecture and external Certik or Trail of Bits audit ranges from $100,000-$300,000+.
Audit costs are third-party and quoted separately; Pharos coordinates the engagement and manages remediation cycles.
Pharos applies defense-in-depth: OpenZeppelin audited libraries for standard patterns, custom invariant testing with Foundry's fuzzer, static analysis via Slither and Mythril and a mandatory external audit before any mainnet deployment. Access control follows least-privilege principles - owner keys are replaced by timelocks and multisig wallets so no single key can drain a contract unilaterally.
Formal verification uses mathematical proofs to guarantee that a smart contract behaves exactly as its specification requires under all possible inputs - not just the ones a test suite covers. Pharos applies formal verification on high-value contracts where a single logic error could expose material funds, using tools such as Certora Prover or Halmos to model critical invariants before audit.
Pharos prepares a full audit package: NatSpec-documented source code, a test coverage report (targeting 95%+ line coverage), a threat model and an architecture diagram. The package goes to the selected auditor - Certik, Trail of Bits, OpenZeppelin or a client-nominated firm.
Pharos manages the remediation cycle, re-tests all fixes and provides an updated deployment package with the auditor's final report attached.
Pharos writes Solidity for EVM-compatible chains (Ethereum, Polygon, Avalanche, BNB Chain) and Rust for Solana programs. Chain selection is driven by gas economics, ecosystem maturity and client liquidity requirements - not toolchain convenience.
Pharos does not recommend a chain before understanding transaction volume, token model and geographic user base.
Blockchain projects fail in production not because the chain is wrong but because the test harness is coverage-driven, the upgrade path is ad-hoc and the oracle design lacks attack modeling. Pharos ships blockchain engagements with invariant testing, OpenZeppelin-based upgrade patterns, audit-grade pre-release checklists and gas-budget regression gates wired in at week one.[1]
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