On-chain programs in Rust and Anchor, plus the clients around them, for DeFi, NFTs, payments, and consumer applications that need throughput and fees a general-purpose chain cannot offer.
Solana does not work like an EVM chain, and code written as though it does tends to fail in expensive ways. State lives in accounts that must be passed into every instruction, execution is parallel wherever accounts do not overlap, compute is metered per transaction, and rent-exemption governs what stays on chain. Building well here means designing the account model first and the business logic second.
We build Solana programs in Rust, usually with Anchor for its account validation and IDL generation, and we build the client layer that goes with them: wallet adapters, transaction construction, priority fee handling, and indexers that turn account state into something an application can query. Security review is part of delivery, not an afterthought: signer checks, owner checks, PDA derivation, and arithmetic safety are where Solana exploits actually come from.
Slot 298 441 902
412 ms · 1,842 txs · finalized
Slot 298 441 901
Anchor invoke · vault deposit · 0.000005 SOL
Slot 298 441 900
SPL transfer · 24 accounts written
Programs, clients, and infrastructure for applications that live at Solana speed.
On-chain programs in Rust and Anchor, designed around Solana’s account model rather than ported from EVM patterns.
SPL and Token-2022 assets and the protocols around them: swaps, staking, vaults, and lending markets.
Collections, marketplaces, and compressed assets built on the Metaplex standards the ecosystem actually uses.
The client half of a Solana product: transaction building, wallet connection, and a UX that survives network congestion.
Review focused on the vulnerability classes that Solana programs actually suffer from.
The infrastructure that keeps a Solana application responsive when the network is under load.
The program, client, and infrastructure toolchain behind a production Solana application.
On-chain programs written in Rust, structured with Anchor.
The SDKs and wallet adapters your users actually touch.
Account state turned into something an application can query quickly.
Validator and RPC infrastructure, plus the test tooling programs need before mainnet.
Working with something else? Our teams pick up new tools quickly. Tell us about your stack.
The specifics that separate a program that ships from one that gets drained.
Signer, owner, and seed checks on every account, since missing constraints, not clever math, are the root of most Solana exploits.
Instructions profiled against the compute unit limit, with heavy work split so a transaction never fails at the worst possible moment.
Priority fees, versioned transactions, and retry logic that keep an application usable when block space is contested.
Rent-exempt sizing, account reallocation, and closure paths planned up front so on-chain storage costs stay predictable.
Account layouts designed to avoid write contention, so Sealevel can actually execute your transactions in parallel.
Program upgrade authority managed through multisig or timelock, with a documented path to making a program immutable.
Where sub-second confirmation and negligible fees change what is possible.
Order books, AMMs, perpetuals, and lending markets that need low latency and cheap order updates.
Large collections, in-game assets, and compressed mints at a cost per asset that makes consumer scale viable.
Point-of-sale, streaming payments, and payouts where fees have to stay below the value transferred.
Social, loyalty, and rewards products where users expect an app to respond immediately, not in thirty seconds.
From account architecture to a program running on mainnet-beta.
We design the account model first, covering what state lives where, which PDAs derive from what, who owns each account, and how instructions compose, because on Solana this decision constrains everything after it.
Anchor programs written in Rust with instruction-level tests from the start, running against a local validator so your team can exercise real flows early.
Transaction construction, wallet adapter integration, indexing, and front-end work, including the congestion and retry behaviour that decides whether the app feels reliable.
Integration tests against a local validator, fuzzing of instruction inputs, compute profiling, and a security review pass over account validation and arithmetic.
Devnet deployment for real-world testing, external audit where value at risk warrants it, remediation, then a staged mainnet-beta rollout with upgrade authority controls in place.
RPC and indexer monitoring, alerting on failed transaction rates, and ongoing program upgrades as the product and the network evolve.
What teams ask before starting a Solana build.
The execution model is genuinely different. Solana programs are stateless code; all state lives in separate accounts that every instruction must declare up front, which is what allows parallel execution. Programs are written in Rust rather than Solidity, storage is paid for through rent exemption instead of per-slot gas, and transactions have a compute unit budget. Solidity experience transfers conceptually, but the account model has to be learned properly, and teams that skip that step are where most Solana bugs come from.
Anchor for almost everything. It handles account validation, serialisation, and IDL generation, which removes an entire class of security bugs and makes client integration far easier. Native programs make sense when you need to squeeze compute units in a very hot instruction or need control Anchor does not expose. Many production protocols use Anchor for the bulk of their code and hand-optimise only the instructions that need it.
Deployment cost is driven by program size, typically a few SOL for the rent-exempt program account, recoverable if the program is later closed. Each stateful account your program creates also needs a rent-exempt balance proportional to its size. Transaction fees are a fraction of a cent, with optional priority fees during congestion. We model these costs during architecture, because account sizing decisions are what actually drive them.
By reviewing for the classes that actually occur: missing signer checks, missing account owner checks, unvalidated PDA derivation, type confusion between account structs, arithmetic overflow and rounding in favour of the user, and unsafe cross-program invocation. Anchor’s constraint system prevents many of these when used properly. On top of that we fuzz instruction inputs and recommend an external audit before meaningful value is at stake.
For anything with real usage, yes. Public endpoints are rate limited and unreliable under load, and Solana applications are chatty: account subscriptions, transaction simulation, retries. We normally deploy dedicated RPC with a provider or run our own nodes, plus an indexer so the front end reads from a queryable database rather than scanning accounts on every page load.
A focused program with a client integration, such as a staking vault, a token distribution, or a simple marketplace, is typically 8 to 14 weeks. A full DeFi protocol or a consumer application with multiple programs, indexing infrastructure, and an audit usually runs 4 to 8 months, with the audit and remediation cycle a meaningful part of that.
Teams often ship on more than one chain. We build across all of these.
Tell us what your program has to do and we will come back with an account architecture, a security plan, and a delivery timeline.