Comfygen builds secure, audit-ready Solana smart contracts using Rust and the Anchor framework — custom programs for DeFi, token, NFT, and DEX platforms that run on Solana's parallel-execution runtime. From architecture to deployment and post-launch audits, we write smart contracts engineers can actually read.
Rust & Anchor programs built to your exact business logic, from scratch.
Rust & Anchor programs built to your exact business logic, from scratch.
Manual review plus static-analysis tooling before you coordinate a third-party audit.
Reduce compute units and rent cost on existing Solana programs.
Lending, staking, AMM, and vault logic. See our Solana DeFi development service.
SPL token programs with custom mint, transfer, and governance logic. See token development.
Swap, pool, and order-matching programs built for high liquidity efficiency on Solana's Sealevel runtime.
Port EVM/Solidity logic to Rust/Anchor for deployment on Solana.
Unit tests, integration tests, and devnet/testnet simulation before mainnet launch.
Solana smart contract development is the process of writing on-chain programs — typically in Rust using the Anchor framework — that run on Solana's parallel-execution (Sealevel) runtime. Unlike Solidity contracts on Ethereum, Solana programs are stateless logic that operate on separate account data, which lets thousands of transactions touching different accounts execute in parallel instead of one at a time. This is what makes Solana smart contracts cheap (sub-$0.00025 per call) and fast (~400ms finality) enough to power order-book exchanges,high-frequency DeFi, and real-time gaming economies.
Most Solana smart contract problems we're brought in to fix come down to one of these.
Shipping without a structured audit process is the single biggest cause of Solana program exploits.
Program Derived Addresses and Cross-Program Invocations are easy to get subtly wrong without Solana-specific experience.
Teams coming from Solidity often misuse Solana's account/rent model, leading to costly rewrites.
Poorly optimized programs hit compute limits or bleed rent on unnecessary account data.
Contracts written without documentation or tests are expensive to hand off or extend.
Programs deployed without an upgrade authority strategy get stuck when requirements change.
The key differences that shape how we architect a Solana smart contract versus a Solidity one.
| Factor | Solana | Ethereum | |
|---|---|---|---|
| Language | Rust (Anchor framework) | Solidity | |
| Execution model | Parallel (Sealevel) — independent accounts run concurrently | Sequential — one transaction at a time per block | |
| State storage | Separate accounts, rent-based | Contract storage, gas-based | |
| Avg. transaction cost | < $0.00025 | $0.50 – $50+ depending on gas | |
| Finality | ~400ms | ~12 – 15 minutes (pre-finality confirmations vary) | |
| Audit tooling maturity | Growing (Sec3, Neodyme, OtterSec, Soteria) | Mature (Slither, MythX, OpenZeppelin) |
Language
Rust (Anchor framework)
Solidity
Execution model
Parallel (Sealevel) — independent accounts run concurrently
Sequential — one transaction at a time per block
State storage
Separate accounts, rent-based
Contract storage, gas-based
Avg. transaction cost
< $0.00025
$0.50 – $50+ depending on gas
Finality
~400ms
~12 – 15 minutes (pre-finality confirmations vary)
Audit tooling maturity
Growing (Sec3, Neodyme, OtterSec, Soteria)
Mature (Slither, MythX, OpenZeppelin)
A simplified example of the structure, documentation, and account-validation style we write into every Solana program.
use anchor_lang::prelude::*;
declare_id!("Fg6PaFpoGXkYsidMpWTK6W2BeZ7FEfcYkg476zPFsLnS");
#[program]
pub mod escrow {
use super::*;
pub fn initialize(ctx: Context<Initialize>, amount: u64) -> Result<()> {
let escrow = &mut ctx.accounts.escrow_account;
escrow.amount = amount;
escrow.authority = ctx.accounts.authority.key();
Ok(())
}
}
#[derive(Accounts)]
pub struct Initialize<'info> {
#[account(init, payer = authority, space = 8 + 40)]
pub escrow_account: Account<'info, Escrow>,
#[account(mut)]
pub authority: Signer<'info>,
pub system_program: Program<'info, System>,
}
#[account]
pub struct Escrow {
pub amount: u64,
pub authority: Pubkey,
}Every Comfygen Solana contract goes through this process before it touches mainnet — a step most agencies skip or skim.
A production-grade stack purpose-built for high-frequency, on-chain trading.
React js
Angular jsVue.js
HTML5
CSS3
JavaScript
Nodejs
Django
Python
Java (Spring Boot)
NET Core
PostgreSQL
MongoDB
MySQL
Redis
Google Maps API
Mapbox
Geolocation APIs
React Native
FlutterSwift (iOS)Kotlin (Android)
AWS
GCP
Docker
Microsoft Azure
Kubernetes
Razorpay
Stripe
PayPal
Plaid (for banking APIs)
UPI Integration
End-to-End Encryption
OAuth Authentication
JWT AuthenticationPCI-DSS ComplianceApache
HadoopSparkReal-time AnalyticsBusiness Intelligence Tools
Solidity
Go (Golang)PythonJavaScript / TypeScript
Ethereum (EVM)
BNB Smart Chain
Polygon
Solana
Avalanche
TRON
ERC-20 / BEP-20
ERC-721 (NFT)
ERC-1155 (Multi-Token)TRC-20 / TRC-10
SPL Token
OpenZeppelin
Remix IDE
Truffle
Foundry
Ganache
MetaMask
Trust Wallet
Coinbase Wallet
MyEtherWallet
Hardware WalletsWe map your business logic to Solana's account model before writing code.
Account structures, PDAs, and CPI flows are designed and documented.
Modular, tested program development against devnet.
Manual review plus automated tooling before external audit.
We prepare documentation and liaise with your chosen audit firm.
Deployment with a defined upgrade-authority strategy.
Ongoing monitoring and upgrades aligned with Solana network changes.
Get a free consultation and a detailed cost estimate for your Solana smart contract project.
Starting at $10,000. Includes architecture design, development, internal review, and test coverage. Full pricing depends on contract complexity and audit scope — every engagement starts with a free consultation.
| Project Type | Estimated Cost | Timeline | |
|---|---|---|---|
| Single-purpose contract (e.g. token vesting, staking) | $10,000 – $20,000 | 4 – 8 weeks | |
| Multi-contract system (e.g. lending protocol) | $20,000 – $45,000 | 8 – 14 weeks | |
| Enterprise-grade suite with full audit coordination | $45,000+ | 14+ weeks |
Single-purpose contract (e.g. token vesting, staking)
$10,000 – $20,000
4 – 8 weeks
Multi-contract system (e.g. lending protocol)
$20,000 – $45,000
8 – 14 weeks
Enterprise-grade suite with full audit coordination
$45,000+
14+ weeks
Every account relationship starts with Program Derived Address design, giving your contract deterministic, collision-free storage instead of structure that gets bolted on after the logic is already written.
Static analysis, manual internal review, and third-party audit coordination happen in sequence, not as a single rushed pass before launch, so vulnerabilities surface while they're still cheap to fix.
We profile compute-unit usage and account rent during development, not after a costly Mainnet bill, so your program runs lean without sacrificing functionality or security.
Every program ships with inline documentation and test coverage, so a future developer — on your team or ours — can read, trust, and extend it without reverse-engineering it first.
We define who can upgrade your program and under what process before deployment, so a necessary change later doesn't become an unplanned security decision made under pressure.
Saddam Husen, Comfygen's Co-Founder and CTO, stays hands-on in Rust/Anchor delivery oversight, so contract-level decisions get senior technical judgment rather than just junior execution.
Need extra Rust and Anchor capacity without the overhead of a full-time hire? Bring Comfygen's smart contract engineers onto your team on a dedicated, hourly, or project basis — specialists who already write PDA-based, audit-ready Solana programs and can plug straight into your sprint cadence.
Specialized in Rust and Anchor for custom Solana program development
Experienced across DeFi, token, NFT, and DEX smart contract systems
Flexible engagement: dedicated, hourly, or project-based hiring models
Direct communication with developers throughout the project lifecycle
Defined scope, cost, and timeline for a clearly-specced contract.
A full-time Rust/Anchor engineering pod embedded with your team.
Flexible scope for evolving contract requirements.
Hear what our clients have to say about their experience working with us
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Froge Flex
Solana smart contracts are primarily written in Rust, usually with the Anchor framework, which handles serialization, account validation, and other boilerplate so your code stays focused on actual program logic.
Pricing starts at $10,000 for a single-purpose contract such as token vesting or staking, while multi-contract systems like a full lending protocol typically run $20,000 to $45,000 or more.
Yes, any contract that handles user funds should go through static analysis, manual internal review, and a coordinated third-party audit before it's deployed to mainnet and starts holding real value.
A single-purpose contract typically takes 4 to 8 weeks, while a multi-contract system such as a lending protocol takes 8 to 14 weeks with audit coordination.
Yes, we port EVM and Solidity logic to Rust and Anchor, re-architecting the account structure for Solana's parallel-execution model rather than translating the original code line by line.
Yes, post-launch monitoring, bug fixes, and upgrades aligned with Solana network changes are part of our standard delivery process, not a separate retainer you have to negotiate later.
Mr. Saddam Husen, CTO at Comfygen, is a renowned Blockchain expert and IT consultant with extensive experience in blockchain development, crypto wallets, DeFi, ICOs, and smart contracts. Passionate about digital transformation, he helps businesses harness blockchain technology's potential, driving innovation and enhancing IT infrastructure for global success.
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