Blockchain development services

We help enterprises and startups to get the full advantage of blockchain solutions, improve business efficiency, security and enable them to boost their businesses. Leverage cutting-edge blockchain technology to propel your business into the future.

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End-to-end Web3 product services

Cross-platform designDiscovery & product design
Custom blockchain development
Digital payments and mobile wallets iconCrypto payments & wallet integrations
Smart contracts iconICO solutions
Security Boost

Discovery & product design

Our team helps turn ideas and concepts from blockchain projects into actionable product blueprints. We prepare a solid foundation for the project development before a single line of code is written.

  • Blockchain product discovery workshops – if you have unclear requirements and success metrics.
  • User journey mapping and feature scoping for dApps, dashboards, and platforms.
  • UX/UI design for Web3 products: wallets, admin panels, analytics tools – you will be able to touch the product before developing it. 
  • High-level technical architecture: components, integrations, and scalability roadmap – if you need technical expert advice.
Laptop on desk with mouse and plant

Custom blockchain development

For companies seeking custom solutions, we offer end-to-end custom blockchain development, tailoring the solution to your business goals, environment, and users. You get production-ready software that fits your business processes, not the other way around.

  • Custom dApp development for web and mobile (DeFi, NFT, exchanges, GameFi, analytics)
  • Enterprise blockchain applications on private/permissioned networks (supply chain, finance, identity, asset traceability)
  • Protocol and node components: customizing clients, consensus-related modules, and network logic to support your product stack
  • API layer, data pipelines, and third-party integrations connecting blockchain services with ERPs, CRMs, banking systems, and other core platforms
Smart contract development process

Crypto payments & wallet integrations

We help you gain access to crypto within existing products without disrupting current billing and compliance flows. A simple payment button or deeply integrated settlement logic – we make crypto a native part of your systems. 

  • Crypto payment integration for e-commerce, SaaS, and point-of-sale systems
  • On-/off-ramp integrations with fiat gateways, exchanges, and KYC/AML providers
  • ERP, CRM, and core-banking integrations to sync on-chain events with internal records
  • Wallet integrations and UX flows that guide users through safe crypto payments
A developers working on a laptop computer

ICO solutions

We support startups planning an ICO at every step of the way: Ideation and viability check, tokenomics and emission model, legal setup and compliance, all up to post-ICO support and listings. You get a technically solid foundation that makes it easier to earn and keep investor trust.

  • Tokenomics design and emission model aligned with your product roadmap.
  • Smart contract development for utility/security tokens and sale mechanics.
  • Investor dashboard and contribution portal with wallet and payment integrations.
  • KYC/AML, listing support, and ongoing technical maintenance after the ICO
Developers testing an application

Security Boost

We strengthen the security of your blockchain product across code, infrastructure, and operations, so you can launch and grow with fewer blind spots. Our work focuses on practical hardening, real-world recent threats, clear remediation steps, and continuous monitoring and alerting.

  • Smart contract audits and secure coding reviews for critical on-chain logic.
  • Security assessments of dApps, APIs, nodes, and integrations (incl. payments and KYC).
  • Hardening of keys, access control, and deployment pipelines.
  • Continuous monitoring setup: alerts for anomalies, failures, and suspicious activity
Secure and scalable infrastructure
Wallet icon
Cut the cost of business transactions
Wallet icon
Streamline your financial operations
Security icon
Secure your financial operations
Management icon
Reinforce your asset management

Blockchain solutions areas where we excel

We don’t try to “build everything on blockchain”. Instead, we focus on several solution types where we have the strongest expertise. Each of these directions is backed by solid engineering practice, security focus, and experience integrating blockchain into real products and existing business systems.

Smart contract engineering

Our team develops smart contracts that execute your essential business operations through secure on-chain execution. We provide comprehensive services, from architectural drawings to post-launch upgrade strategies.

We offer expertise in developing secure gas-efficient contracts with the help of Solidity, Byper, Rust, and EVM-compatible exosystems. This includes token standards (ERC-20, ERC-721, ERC-1155, ERC-4626) and custom tokenomics, protocol logic, staking and reward systems, access control, and role-based permissions.

Special attention is paid to architecture and maintainability. We design modular, upgradeable contract systems, apply proven patterns (UUPS, transparent proxies, etc.), and prepare them for audits. The result is a codebase that is easier to verify, extend, and operate in production.

Decentralized app (dApp) development

Our team specializes in developing complete decentralized applications from start to finish. Our team handles product discovery, UX design, and system architecture development to create dApp structures that match actual user behaviors and business operations. Our team creates secure on-chain logic while building contemporary web and mobile interfaces, establishing wallet integration with MetaMask, WalletConnect, oracles, APIs, payment rails, and off-chain service connections.

Our team establishes development environments, testing protocols, and quality assurance procedures, and handles mainnet and testnet deployment operations and audit coordination as necessary. Our team tracks system performance after deployment while collecting user feedback to support ongoing development that keeps your dApp running at top speed with your product growth and user expansion.

Exchanges & trading platforms

We design and develop trading platforms where reliability, performance, and compliance matter. This includes both decentralized exchanges and components of centralized trading systems.

On the DeFi side, we implement AMM-based, order-book, and hybrid DEX architectures with routing, fee logic, liquidity incentives, and on-chain risk parameters. On the centralized side, we build matching engines, wallet subsystems, KYC/AML flows, admin consoles, and back-office tools tailored to the regulatory and operational context of your business.

We also develop aggregators and routing logic that search across DEXs for the best execution, and tools for market makers: bots, strategy engines, and liquidity dashboards. The goal is a trading infrastructure that gives you control, visibility, and the ability to evolve the platform without rewriting it from scratch.

Wallets, custody & identity

We create wallets and identity solutions that combine strong security with a clear, frictionless user experience – for both end users and institutions.

Our team builds non-custodial browser and mobile wallets, as well as embedded wallets for apps, games, and dApps. We also work with smart contract wallets and account abstraction: social recovery, gas abstraction, programmable permissions.

For businesses and organizations, we implement custodial and multi-sig wallet solutions for teams and treasuries, with approval policies, audit trails, and separation of responsibilities. We also design decentralized identity (DID) and Web3 SSO solutions using verifiable credentials and on-chain identities.

Blockchain analytics & monitoring dashboards

These blockchain solutions refer to analytics and monitoring dashboards that make on-chain activity transparent and manageable for business, risk, and operations teams.

Our solutions aggregate data from nodes, indexers, and third-party APIs, then structure it into clear metrics: addresses, tokens, protocols, liquidity, flows, fees, and events. We design dashboards that provide a clear view of your protocol or product’s health at a glance.

We also add alerting for abnormal behavior and operational incidents (suspicious flows, unusual activity, unusual contract interactions), and support exports to BI tools and data warehouses.

Supply chain & asset traceability solutions (enterprise)

Our blockchain solutions for enterprises monitor assets throughout their entire lifecycle, maintaining a unified database that all network participants can access.

The blockchain system tracks all asset movements, transformations, and ownership changes through permissioned events, creating immutable records. Our systems integrate with core applications, including ERP, WMS, and TMS, enabling scanning and IoT sensor integration for seamless synchronization of physical and digital flows.

Smart contract engineering

Our team develops smart contracts that execute your essential business operations through secure on-chain execution. We provide comprehensive services, from architectural drawings to post-launch upgrade strategies.

We offer expertise in developing secure gas-efficient contracts with the help of Solidity, Byper, Rust, and EVM-compatible exosystems. This includes token standards (ERC-20, ERC-721, ERC-1155, ERC-4626) and custom tokenomics, protocol logic, staking and reward systems, access control, and role-based permissions.

Special attention is paid to architecture and maintainability. We design modular, upgradeable contract systems, apply proven patterns (UUPS, transparent proxies, etc.), and prepare them for audits. The result is a codebase that is easier to verify, extend, and operate in production.

Decentralized app (dApp) development

Our team specializes in developing complete decentralized applications from start to finish. Our team handles product discovery, UX design, and system architecture development to create dApp structures that match actual user behaviors and business operations. Our team creates secure on-chain logic while building contemporary web and mobile interfaces, establishing wallet integration with MetaMask, WalletConnect, oracles, APIs, payment rails, and off-chain service connections.

Our team establishes development environments, testing protocols, and quality assurance procedures, and handles mainnet and testnet deployment operations and audit coordination as necessary. Our team tracks system performance after deployment while collecting user feedback to support ongoing development that keeps your dApp running at top speed with your product growth and user expansion.

Exchanges & trading platforms

We design and develop trading platforms where reliability, performance, and compliance matter. This includes both decentralized exchanges and components of centralized trading systems.

On the DeFi side, we implement AMM-based, order-book, and hybrid DEX architectures with routing, fee logic, liquidity incentives, and on-chain risk parameters. On the centralized side, we build matching engines, wallet subsystems, KYC/AML flows, admin consoles, and back-office tools tailored to the regulatory and operational context of your business.

We also develop aggregators and routing logic that search across DEXs for the best execution, and tools for market makers: bots, strategy engines, and liquidity dashboards. The goal is a trading infrastructure that gives you control, visibility, and the ability to evolve the platform without rewriting it from scratch.

Wallets, custody & identity

We create wallets and identity solutions that combine strong security with a clear, frictionless user experience – for both end users and institutions.

Our team builds non-custodial browser and mobile wallets, as well as embedded wallets for apps, games, and dApps. We also work with smart contract wallets and account abstraction: social recovery, gas abstraction, programmable permissions.

For businesses and organizations, we implement custodial and multi-sig wallet solutions for teams and treasuries, with approval policies, audit trails, and separation of responsibilities. We also design decentralized identity (DID) and Web3 SSO solutions using verifiable credentials and on-chain identities.

Blockchain analytics & monitoring dashboards

These blockchain solutions refer to analytics and monitoring dashboards that make on-chain activity transparent and manageable for business, risk, and operations teams.

Our solutions aggregate data from nodes, indexers, and third-party APIs, then structure it into clear metrics: addresses, tokens, protocols, liquidity, flows, fees, and events. We design dashboards that provide a clear view of your protocol or product’s health at a glance.

We also add alerting for abnormal behavior and operational incidents (suspicious flows, unusual activity, unusual contract interactions), and support exports to BI tools and data warehouses.

Supply chain & asset traceability solutions (enterprise)

Our blockchain solutions for enterprises monitor assets throughout their entire lifecycle, maintaining a unified database that all network participants can access.

The blockchain system tracks all asset movements, transformations, and ownership changes through permissioned events, creating immutable records. Our systems integrate with core applications, including ERP, WMS, and TMS, enabling scanning and IoT sensor integration for seamless synchronization of physical and digital flows.

Our tech stack

Blockchain networks

  • Ethereum
  • Polygon
  • BNB Chain
  • Arbitrum
  • Solana
  • Polkadot
  • Cosmos
  • Hyperledger Fabric
  • Quorum

Smart contract languages & frameworks

  • Solidity
  • Vyper
  • Rust
  • Hardhat
  • Foundry
  • Truffle
  • OpenZeppelin

Web3 & wallet integrations

  • Ethers.js
  • Web3.js
  • WalletConnect
  • MetaMask
  • Coinbase Wallet
  • Phantom

Infrastructure & DevOps

  • AWS
  • Google Cloud
  • Azure
  • Docker
  • Kubernetes
  • GitHub Actions
  • GitLab CI/CD

What makes our tech stack different

Web tools icon

End-to-end coverage

We cover all areas that might be involved in blockchain-powered software development. It encompasses purely blockchain competencies like chain selection and smart contracts, as well as UX, Business Analysis, Backend development, and DevOps.

Responsible approach to deadlines

Vendor-agnostic approach

We work across public, Layer 2, and enterprise networks, selecting platforms based on your specific needs, not our preferences.

Business Goals Focus

Production focus

Our success metrics are the value the software brings to your business. From day one, we focus on the business benefits aspect of the software, selecting the most appropriate tools, services, and tech stack to offer.

Engagement models we offer

Depending on your business state, project needs, and required software services, we offer 6 different cooperation formats that we’ve successfully implemented across 12+ industries.

Audit
Software development outsourcing
Staff augmentation
Dedicated team

Audit

It’s a concise, fixed-price deep dive to understand your current state, identify what works, and determine the cost to fix and grow. We review the codebase, architecture, infrastructure, security, and delivery process to assess the safety of scaling and identify the risks you face.

 

When it helps: When you already have a product or prototype and need an independent view on code quality, architecture, risks, and a realistic budget/timeline for the next phase.

 

What are the outputs: A short report with key findings and risks, a prioritized roadmap of improvements, and effort/budget estimates you can use for planning.

Developers, with code on their screens, working together

Software development outsourcing

A classic approach to software development involves assembling a highly skilled team of designers, developers, and QA specialists to manage the entire project lifecycle. We take 100% responsibility for execution and management while you act as a stakeholder, providing input, setting goals, and reviewing progress to ensure alignment with your vision.

 

When it helps: When you have an idea and a budget and want to turn it into software. 

 

What are the outputs: A released product (MVP or full version) with agreed features, documentation, and support/maintenance plan.

A developers working on a laptop computer

Staff augmentation

We source the best-fit candidates to complement your team with the skills you need. You gain access to top-tier software developers, Scrum Masters, designers, QA specialists, software architects, and more. Our experts integrate into your in-house team, becoming full-fledged members from day one.

 

When it helps: When you have an existing team and processes but lack specific skills or capacity.

 

What are the outputs: Vetted specialists onboarded into your team, working under your processes and tools.

A developer working on a laptop

Dedicated team

A fully dedicated team tailored to your specific requirements and focused exclusively on the tasks you need to complete. They take full responsibility for execution while you retain control over management and team oversight. 

 

When it helps: When you plan a long-term development and need a development team for that purpose.

 

What are the outputs: A professionally assembled team of specialists working full-time under your direction.

A developer sketching ideas in a notebook next to a laptop

The system has produced a significant competitive advantage in the industry thanks to SumatoSoft’s well-thought opinions.

They shouldered the burden of constantly updating a project management tool with a high level of detail and were committed to producing the best possible solution.

I was impressed by SumatoSoft’s prices, especially for the project I wanted to do and in comparison to the quotes I received from a lot of other companies.

Also, their communication skills were great; it never felt like a long-distance project. It felt like SumatoSoft was working next door because their project manager was always keeping me updated. Initially.

We tried another company that one of our partners had used but they didn’t work out. I feel that SumatoSoft does a better investigation of what we’re asking for. They tell us how they plan to do a task and ask if that works for us. We chose them because their method worked with us.

SumatoSoft is the firm to work with if you want to keep up to high standards. The professional workflows they stick to result in exceptional quality.

Important, they help you think with the business logic of your application and they don’t blindly follow what you are saying. Which is super important. Overall, great skills, good communication, and happy with the results so far.

SumatoSoft is flexible, efficient, and extremely good at planning and being proactive. They have also been very proactive in their approach throughout the project, seeking to understand the needs and the reasons behind them before launching into development, which has been helpful for maintaining direction and consistency, especially because the end client is regularly generating new ideas for added features.

The Rivalfox had the pleasure to work with SumatoSoft in building out core portions of our product, and the results really couldn’t have been better.

SumatoSoft provided us with engineering expertise, enthusiasm and great people that were focused on creating quality features quickly.

Since 2012 we have been responsible for your projects and we are proud of it!

98%
of our Clients are satisfied with our software development services
250+
successful projects we deployed
70%
of our development team are senior-level engineers
100+
talented professionals in the team
25+
countries our activity area covers
14+
years on the market

Benefits of choosing SumatoSoft as the blockchain development service provider

Build on

Proven workflows, Dedicated QA specialists

Lessons learned after 36000 hours of custom software development

Openness to share knowledge and experience with your teams

Go faster with

Agile methodology

100% transparency

Dedicated Technical

PO / PM / BA

Stay in control

Clear and detailed estimates

Sprint / monthly reports, custom reports

Regular communications: calls, emails, chats, personal meetings

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    If you have any questions, email us info@sumatosoft.com

      Please be informed that when you click the Send button Sumatosoft will process your personal data in accordance with our Privacy notice for the purpose of providing you with appropriate information. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

      Elizabeth Khrushchynskaya
      Elizabeth Khrushchynskaya
      Account Manager
      Book a consultation
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