Tired of agencies that need six weeks of onboarding to understand what a nullifier is? Visoft builds for cryptography-heavy, high-stakes domains — web3 protocols, zero-knowledge systems, TLSN-based verification, fintech infrastructure — where "we'll figure it out as we go" isn't good enough.
Every engagement starts with engineers who already speak your stack. You get production-grade code, reviewed cryptographic assumptions, and a team that ships on the timeline a fundraising round or research deadline actually demands.
See how we workWorking with a specialized team isn't about hiring extra hands — it's about removing the translation layer between what you need and what gets built.
Engineers are matched to your stack from day one — Solidity, circom, halo2, TLSN, Rust — so the first two weeks are spent shipping, not explaining what a Merkle proof is.
Code ships with test coverage, audited-style review practices, and documentation a future auditor or new hire can actually follow.
Scale from one embedded engineer to a full team, month to month, without long-term contracts or scopes that stop making sense mid-research.
Every engagement — a zero-knowledge circuit, a TLSN integration, a fintech settlement layer — follows the same four-stage process.
We map the protocol, threat model, and integration points with your team, so the architecture is validated before it's expensive to change.
We design the system — circuits, contracts, or verification flows — and validate the riskiest assumptions first with a working proof-of-concept.
Engineers build in short, reviewable cycles with your team looped in continuously — no month-long silence before a surprise delivery.
Code ships with documentation and test coverage your team can maintain independently, with optional support for audits, upgrades, or scaling.
Four domains, one engineering standard.
Protocol and smart contract development across EVM and non-EVM chains, built for teams that need code ready for an audit, not just a testnet demo.
Circuit design and implementation using circom, halo2, and related toolchains, for privacy-preserving or scalability-focused ZK applications.
Integration of TLS Notary-based proof systems for teams that need to verify off-chain data without trusting a centralized oracle.
Trading engines, escrow logic, and settlement systems for fintech startups building products where correctness bugs mean lost funds.
Engineers arrive already fluent in the primitives — commitments, threshold signatures, selective disclosure — so discussions move at the pace your team expects.
Every deliverable is written assuming it will eventually face an external audit, a research reviewer, or a skeptical technical co-founder.
The same engineers who scope the architecture ship the code and support it post-launch — context never gets lost in a handoff.
Practical experience across proving systems, applied to real constraints around circuit size, prover time, and verification cost.
Implementation of TLSN-based attestation flows that let applications verify real-world data without a trusted intermediary.
Design and implementation of threshold signing schemes for teams that need to remove single points of control from fund movement.
Contract architecture and implementation across EVM and non-EVM environments, written with audit-readiness as a default.
Working with a specialized partner still means a few things are on you to get right.
All code, circuits, and documentation produced under an engagement are owned by the client on delivery — Visoft retains no rights to project-specific work.
Fixed-scope estimates are only as accurate as the discovery phase; skipping it to save time typically costs more time later.
Confidentiality agreements are signed before any technical discovery call, since most clients work on unannounced protocols or unpublished research.
Yes. We commonly work as the technical execution arm for non-technical founders, though we recommend at least one technical stakeholder on the client side to own long-term maintenance decisions.
The client does, fully, on delivery. Visoft does not retain licensing rights, equity stakes, or reuse rights over project-specific code or circuits.
Yes — embedded engagements are designed to plug into your existing team and workflow rather than operate as a separate silo.
An NDA is signed before any technical discovery call. Research-stage clients can request that scoping discussions happen without any public-facing artifacts being created.
Flexible and fixed-scope engagements both include a defined re-scoping checkpoint, so a pivot doesn't require canceling and restarting.