Solidity & Rust Smart Contracts
Production-grade smart contracts in Solidity (Ethereum, Polygon, BSC) and Rust (Solana). We follow battle-tested patterns, implement access controls, and write comprehensive NatSpec documentation.
BLOCKCHAIN & WEB3
Smart Contract Development & Audit
We write, audit, and deploy production-grade smart contracts across Ethereum, Solana, Polygon, and BSC. Zero exploits on our audited contracts. $500M+ TVL secured across 100+ deployments.
100+
Contracts Audited
$500M+
TVL Secured
ETH/SOL/BSC
Chain Expertise
Fixed scope, fixed price
A number before we write code
Your IP from day one
Full ownership on final payment
Senior engineers only
No juniors on your budget
Reply within 1 working day
From an engineer, not a bot
Get Your Custom Project Plan
Share your project details — a senior engineer responds within one working day.
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💬Free Consultation
Our Capabilities
Contract Security Auditing
Thorough manual review and automated analysis (Slither, Mythril, Echidna) for reentrancy, integer overflow, access control flaws, and logic vulnerabilities. Detailed audit reports with severity ratings and remediation guidance.
Gas Optimization
Systematic gas profiling and optimization — storage layout improvements, function visibility tuning, loop optimization, and efficient data structures. We typically reduce gas costs by 20–40% without sacrificing safety.
Upgradeable Contract Patterns
Implement proxy patterns (UUPS, Transparent Proxy, Diamond/EIP-2535) that allow contract logic upgrades while preserving state. We analyze trade-offs and implement the appropriate pattern for your use case.
Multi-Sig & DAO Contracts
Gnosis Safe integrations, custom multi-signature contracts, Governor Bravo and OpenZeppelin Governor implementations for on-chain governance, timelock controllers, and treasury management.
Testnet → Mainnet Deployment
Full deployment pipeline from local testing to testnet verification to mainnet launch. Includes Hardhat/Foundry test suites, contract verification on Etherscan, and post-deployment monitoring setup.
How we work
Fixed milestones, working software every fortnight, and no surprises on the invoice.
- 01
Requirements & Architecture
We map out your contract architecture — state variables, access control roles, function interfaces, and upgrade strategy — before writing a single line of code. Clear specs prevent costly post-deployment mistakes.
- 02
Development
Contracts are written following OpenZeppelin standards, with comprehensive unit and integration tests using Hardhat or Foundry. Every function is tested against expected and edge-case inputs.
- 03
Security Audit
Multi-stage security review combining automated scanning tools with deep manual code review. We test all attack vectors relevant to your contract type and provide a full written audit report with findings.
- 04
Mainnet Deploy
Staged mainnet deployment with a final pre-launch checklist, multisig deployment for key functions, Etherscan verification, and post-deployment integration testing. We stay on-call for 48h post-launch.
Work we have shipped
Accountable partners, not outsourced vendors
How we price, who we staff and what happens after launch — the parts that decide whether a project actually lands.
Fixed scope, fixed price
You know the cost and the timeline before a line of code is written. No hourly billing, no scope-creep surprises.
You own everything
Full source code, credentials and intellectual property transfer to you on final payment. We sign the IP assignment on day one.
Senior engineers only
Every project is staffed by engineers with years of production experience — no juniors learning on your budget.
Canadian data residency
Built for PIPEDA and provincial privacy law, with data kept on Canadian infrastructure where it matters.
8-week MVP programme
A focused, fixed-price path from idea to a launched product, refined across dozens of startup engagements.
Support after launch
Tiered SLAs from monitoring and bug fixes to a dedicated team with 24/7 response. Most clients stay for years.
Recognition
Independent awards and partner tiers, each one earned on delivered work.
Top Generative AI Company
Top App Development Company
Webby Honoree
Best App Award, Personal Growth
Advanced Tier Services Partner
Top 100 North America
Compliance
Regulation is a design constraint here, accounted for from the first architectural decision rather than audited in at the end.
Privacy
Personal data handled to the letter of Canadian and international law.
PIPEDAGDPRHIPAACCPA
Security
Threat modelling, least-privilege access and audited controls.
SOC 2 Type IIISO 27001Zero trust
AI governance
Model evaluation, human oversight and an audit trail.
ISO 42001AIDA-readyModel cards
Sector
The regulations your industry answers to, designed in from day one.
PCI DSSHL7 / FHIROSFI
Cloud
Regional residency, encryption in transit and at rest, tenant isolation.
Canadian data residencyAWS Well-Architected
Accessibility
Built and tested so the people who need it can actually use it.
WCAG 2.2 AAAODA
Common questions
If your question is not here, a senior engineer will answer it within one working day.
Ask our teamIt depends on your audience, cost requirements, and ecosystem. Ethereum mainnet offers the deepest liquidity and DeFi composability but has the highest gas costs. Polygon and Arbitrum give Ethereum compatibility with lower fees. Solana offers the lowest fees and highest throughput but requires Rust and a different mental model. BSC suits projects targeting Asian markets. We help you evaluate trade-offs against your specific requirements before choosing.
Security is built in from day one, not bolted on. We use established OpenZeppelin library components instead of rolling custom implementations, apply the checks-effects-interactions pattern to prevent reentrancy, use SafeMath for arithmetic, implement role-based access controls, and add timelocks on critical admin functions. Before any deployment, contracts undergo both automated scanning (Slither, Mythril) and manual line-by-line review.
Blockchain is immutable by design, but upgradeability can be added via proxy patterns. The most common approaches are Transparent Proxy and UUPS, which separate logic and storage so the logic contract can be replaced while state persists. The tradeoff is added complexity and a potential trust assumption around the upgrade key. We recommend multisig + timelock controls on upgrade permissions to maintain decentralization.
Every operation in a smart contract costs "gas" — paid in ETH by users. Unoptimized contracts can make transactions prohibitively expensive, harming UX and adoption. We profile gas costs for every key function and apply targeted optimizations: packing storage slots, using calldata instead of memory, batching operations, and choosing gas-efficient data structures. A 30% gas reduction directly translates to 30% lower transaction costs for all your users.
Audit duration scales with contract complexity. A single ERC-20 token or simple escrow contract can be audited in 3–5 days. A complex DeFi protocol with multiple interacting contracts typically takes 2–4 weeks. The audit report includes all findings categorized by severity (Critical, High, Medium, Low, Informational), with specific code references and remediation recommendations. We also offer post-fix re-audits to verify issues are resolved.
Let’s build something worth keeping.
Tell us what you are trying to build. A senior engineer will come back within one working day with a scope, a timeline and a fixed price.