What do you need from us to start?

The business problem and the party you do not trust. That is enough for the first conversation, which is about architecture rather than scope: whether blockchain is the right answer, which network your constraints point to, and what has to be settled before anyone writes code. Existing contracts, an integration list, and any compliance constraints speed things up, but none is required to begin.

Blockchain App Development Company for Products That Need to Work in Real Life

Q: Which blockchains do you build on?

In production Neti has shipped on Ethereum and EVM-compatible chains, Polygon, Celo, Filecoin's FEVM, Substrate-based chains, and a permissioned Hyperledger Besu network. Chain choice is a set of trade-offs rather than a preference: cost per transaction, throughput, security model, Layer 1 versus Layer 2, and whether the protocols you need already exist there. In most projects the decision was made by a compliance or ecosystem constraint, not a technical one.

Q: Can you take over a project from another vendor, or work alongside our own developers?

Both, and both are common. On a takeover Neti starts with a read of the existing contracts and architecture before committing to anything, because the state of the deployed code decides whether it is extended or replaced. Alongside an in-house team we usually take the blockchain layer and the parts nobody owns yet: indexing, wallet onboarding, admin tooling, production infrastructure.

We help companies build complete blockchain applications, not just smart contracts. From product planning and architecture to backend, frontend, integrations, testing, and launch, Neti takes care of the full delivery process.

Talk About Your Blockchain App See Our Projects

16+

years of software delivery

7+

years in blockchain

120+

projects delivered

Senior

Solidity and Rust engineers

Experience

across Filecoin, Golem, Substrate and Hyperledger Besu

What Blockchain Application Development includes

A blockchain app development company builds all, not just the Solidity: product architecture, smart contracts, backend and APIs, wallet and onboarding UX, admin tooling, and production deployment. Neti does the whole list with one team. We start by working out how much of your product actually belongs on-chain. Sometimes the answer is none of it, and we will say so.

What We Build

Product architecture

The first decision is what goes on-chain and what stays in the backend. We draw that line before anything is written, because moving it later means rewriting both sides. This is also where we say no if a blockchain is not the right answer.

Blockchains and Technologies We Build On

Everything below is from delivered work, not a capability list.

Layer	What is included
Networks	Ethereum and EVM-compatible chains, Polygon, Celo, Filecoin FEVM, Substrate-based chains, permissioned Hyperledger Besu
Languages	Solidity, Rust
Protocol level	Substrate runtime development, EVM-compatible Layer 1 engineering, live-chain upgrades
Product stack	Next.js, NestJS, PostgreSQL, PWA, REST and GraphQL APIs
Payments and settlement	USDC and stablecoin settlement, Stripe for fiat
Ecosystems	Filecoin, Golem, Liberland, Celo

Blockchain Apps Neti Has Delivered

Each of these needed more than a contract. They needed a product someone could actually use, which is where most blockchain projects run into trouble. The interesting decisions were rarely in the Solidity.

MaxxChain freight factoring platform built by Neti

MaxxChain: freight factoring where drivers never touch a wallet

Independent US truck drivers wait weeks to get paid. MaxxChain wanted that workflow on chain without asking them to learn Web3. Neti built the whole product: Solidity contracts for invoice records and USDC payouts, an admin dashboard for KYC and broker confirmation, and the driver app as a PWA. An invoice only reaches the contract layer after a human broker confirms the shipment.

Read the MaxxChain case study

Art of Reason NFT art marketplace built by Neti, where buyers pay by card through Stripe and never use a crypto wallet

Art of Reason: an NFT platform with no wallets and no crypto payments

Art collectors do not own crypto wallets, and few will open one to buy a painting. Art of Reason wanted an NFT marketplace those buyers could use without knowing it was one. Neti built the whole product: Solidity contracts for ownership, Stripe for payment in ordinary currency, a Next.js and NestJS application, and a multilingual CMS the client runs alone. The contracts also stop the artwork being reused on other platforms.

Read Art of Reason Case Study

PropertyVerce: a tokenization MVP that deliberately shipped less

PropertyVerce: a token sale the founders run themselves

Three founders were funding a real estate tokenization platform with their own money, and had the whole ecosystem mapped before a single investor had put anything in. Neti built the machinery of the raise: a token sale contract with configurable rounds, quantities and pricing, a vesting contract with per-group schedules, and panels the founders operate themselves. Changing the terms of a round takes a form, not a redeploy.

Read PropertyVerce Case Study

FAQs

A blockchain app development company builds the whole product around the chain, not only the contracts on it. In practice that means product architecture, smart contracts, backend and APIs, wallet and onboarding UX, admin tooling, and production deployment. Vendors differ enormously in how much of that list they cover, so the useful question in a first call is which of those six they do in-house and which they subcontract.

No. Smart contracts are only one part of most blockchain applications. Neti can also deliver backend systems, frontend interfaces, APIs, integrations, data infrastructure, admin tools, and production deployment.

Often you do not, and that is the cheapest question to answer early. A blockchain earns its place when multiple parties who do not fully trust each other need to agree on the same record, when the history has to be verifiable by someone outside your company, or when the logic has to execute without an operator. If one company owns the data and the rules, a database is faster, cheaper and easier to change. The test we apply first: name the party you do not trust, and name what breaks if they can quietly edit the record. If you cannot answer both, blockchain is decoration.

Cost is driven by four things, and none of them is the number of developers: how much of the system has to be on-chain, whether the contracts are standard or carry real business logic, how many external systems you integrate with, and whether a third-party security audit is in scope. A token sale with standard contracts and a multi-party settlement platform with custom escrow logic differ by an order of magnitude. We scope after stage one of the process above, not before, because a number given before that decision is a guess.

Scope drives the timeline far more than headcount, because contract work needs a small senior team rather than a large one. Two data points from our own delivery: we rebuilt an EVM-compatible Layer 1 for Kyoto Protocol and shipped a working testnet in three months, and the Liberland live-chain upgrade was over 20,000 lines of new code delivered in about two months by two Substrate engineers. Budget a third-party security audit and its remediation round separately, on top of development rather than inside it.

In production we have shipped on Ethereum and EVM-compatible chains, Polygon, Celo, Filecoin's FEVM, Substrate-based chains, and a permissioned Hyperledger Besu network. Chain choice is a set of trade-offs rather than a preference: cost per transaction, throughput, security model, Layer 1 versus Layer 2, and whether the protocols you need already exist there. In most of our projects the decision was made by a compliance or ecosystem constraint, not a technical one.

Yes, and for most business products they have to. The Web3 layer can sit behind a normal interface, with wallets created and managed for the user rather than by the user. On MaxxChain's freight factoring platform the drivers use a mobile app and never touch a wallet directly, while invoices and USDC payouts settle on chain underneath. On Art of Reason the buyers pay with Stripe in ordinary currency. The decisions that matter are who holds the keys, whether KYC is required, and what happens when a user loses access.

Both, and both are common. On a takeover we start with a read of the existing contracts and architecture before committing to anything, because the state of the deployed code decides whether it is extended or replaced. Alongside an in-house team we usually take the blockchain layer and the parts nobody owns yet: indexing, wallet onboarding, admin tooling, production infrastructure.

The business problem and the party you do not trust. That is enough for the first conversation, which is about architecture rather than scope: whether blockchain is the right answer here, which network your constraints point to, and what has to be settled before anyone writes code. Existing contracts, an integration list, and any compliance constraints speed things up, but none of them is required to begin.

Connect with Neti on Your Blockchain Roadmap

We partner with teams building blockchain infrastructure, payment systems, tokenization platforms, and protocol-based products. Our initial consultations focus on architecture, technical direction, delivery risks, and production readiness. If blockchain is the optimal path, we’ll help you define the most strategic next step.

Sławomir Paśko

Founder & CEO

/slawomirpasko

Sylwia Chmurkowska

COO

/sylwia-chmurkowska

Seweryn Ostrowski

CTO

/seweryn-ostrowski

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You Started Building, but the Product Is Still Incomplete

Your smart contracts may already exist, but the product still needs backend logic, wallet integration, onboarding, transaction tracking, admin tools, monitoring, or production infrastructure. We help identify what is missing and bring the separate parts into one working application.

Too Many Vendors, No One Owning the Whole Product

A blockchain app usually requires blockchain, backend, frontend, UX, QA, DevOps, and integration expertise. Managing these areas through separate providers creates gaps, delays, and unclear responsibility. Neti brings the full delivery team together under one partner.

The Product Works, but Users Struggle to Use It

Your customers should not need to understand wallets, gas fees, signatures, networks, or confirmations to complete a basic task. We design blockchain applications so the technology supports a clear, familiar user experience instead of becoming a barrier.

Blockchain App Development Company for Products That Need to Work in Real Life

What Blockchain Application Development includes

What We Build

Product architecture

Smart contracts

Backend and APIs

Wallet and onboarding UX

Admin tools and monitoring

Deployment and production

Blockchains and Technologies We Build On

Blockchain Apps Neti Has Delivered

MaxxChain: freight factoring where drivers never touch a wallet

Art of Reason: an NFT platform with no wallets and no crypto payments

PropertyVerce: a token sale the founders run themselves

FAQs

Connect with Neti on Your Blockchain Roadmap

Contact form

You Started Building, but the Product Is Still Incomplete

Too Many Vendors, No One Owning the Whole Product

The Product Works, but Users Struggle to Use It

What Blockchain Application Development includes

What We Build

Product architecture

Smart contracts

Backend and APIs

Wallet and onboarding UX

Admin tools and monitoring

Deployment and production

Blockchains and Technologies We Build On

Blockchain Apps Neti Has Delivered

MaxxChain: freight factoring where drivers never touch a wallet

Art of Reason: an NFT platform with no wallets and no crypto payments

PropertyVerce: a token sale the founders run themselves

FAQs

Connect with Neti on Your Blockchain Roadmap

Contact form

You Started Building, but the Product Is Still Incomplete

Too Many Vendors, No One Owning the Whole Product

The Product Works, but Users Struggle to Use It

Blockchain App Development Company for Products That Need to Work in Real Life

What Blockchain Application Development includes

What We Build

Product architecture

Smart contracts

Backend and APIs

Wallet and onboarding UX

Admin tools and monitoring

Deployment and production

Blockchains and Technologies We Build On

Blockchain Apps Neti Has Delivered

MaxxChain: freight factoring where drivers never touch a wallet

Art of Reason: an NFT platform with no wallets and no crypto payments

PropertyVerce: a token sale the founders run themselves

FAQs

What does a blockchain app development company actually deliver?

Do you only build smart contracts?

How do we know if we actually need a blockchain?

How much does it cost to build a blockchain app?

How long does it take to build a blockchain app?

Which blockchains do you build on?

Can people use the app without a crypto wallet?

Can you take over a project from another vendor, or work alongside our own developers?

What do you need from us to start?

Connect with Neti on Your Blockchain Roadmap

Contact form

You Started Building, but the Product Is Still Incomplete

Too Many Vendors, No One Owning the Whole Product

The Product Works, but Users Struggle to Use It

What Blockchain Application Development includes

What We Build

Product architecture

Smart contracts

Backend and APIs

Wallet and onboarding UX

Admin tools and monitoring

Deployment and production

Blockchains and Technologies We Build On

Blockchain Apps Neti Has Delivered

MaxxChain: freight factoring where drivers never touch a wallet

Art of Reason: an NFT platform with no wallets and no crypto payments

PropertyVerce: a token sale the founders run themselves

FAQs

What does a blockchain app development company actually deliver?

Do you only build smart contracts?

How do we know if we actually need a blockchain?

How much does it cost to build a blockchain app?

How long does it take to build a blockchain app?

Which blockchains do you build on?

Can people use the app without a crypto wallet?

Can you take over a project from another vendor, or work alongside our own developers?

What do you need from us to start?

Connect with Neti on Your Blockchain Roadmap

Contact form

You Started Building, but the Product Is Still Incomplete

Too Many Vendors, No One Owning the Whole Product

The Product Works, but Users Struggle to Use It