Software development company

Blockchain & Crypto App Development

Build the next crypto unicorn with OQTACORE

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We specialize on

DeFi Development

Decentralized Finance uses built-in blockchain features and smart contracts' security, ubiquity, and automatization capabilities. DeFi developments implement all the traditional financing in a better and more sustainable way.

DAO development

A Decentralized Autonomous Organization (DAO) is a form of shared control over an organization. The shareholders, all the decisions taken, and the rules of control are defined on the Blockchain.
DAO allows having a brand new form of organization management. The stakeholders don’t even have to know or even trust each other. It is one of the best ways for crowdfunding your project.

DApp development

DApp stands for Decentralized App. Generally speaking, a DApp means that any app has some portion of it interacting with different blockchains, such as Bitcoin, Ethereum, Polygon, Binance Smart Chain, Solana, and others. OQTACORE can easily build any DApp for your needs.

NFT Marketplace Development

NFT marketplaces are increasing in popularity. The NFT technology is just gaining traction, with the most advanced and interesting projects still in development or even on the idea stage. Currently, a very simple implementation of NFTs exists, but they already make a multi-billion-dollar market.
OQTACORE has already implemented NFT marketplaces and can help you create your own NFT marketplace for any idea.

Smart Contracts development

Smart Contracts are the basis of blockchain apps (DApps). Any blockchain app has a written part using Smart contracts. The most popular Smart contract language is Solidity.
OQTACORE has experience in writing Smart contracts since 2017 and can implement any idea in the most efficient and secure manner.

Web & Mobile app development

If you are trying to build an awesome blockchain app, you also need a great web & mobile experience for your users.
OQTACORE has the best UI & UX designers, as well as top 1% frontend and backend developers. With OQTACORE, your blockchain app will always be a step ahead of the competition in terms of usability.

ERC20 development

The ERC20 is a popular standard for tokens running on top of Ethereum. OQTACORE has created many ERC20 tokens for its customers, and it will provide your projects with a custom ERC20 token at a flat price.

Crypto exchange development

Crypto exchange platforms are still developing, with new platforms appearing almost every day. The reason for this is that the crypto market is always evolving, with new Blockchains, new concepts, and new target audiences. If you have a great idea for a crypto exchange, OQTACORE has all the experienced specialists to bring your idea to life.

Tokenization development

Many products can benefit from bringing tokenomics into the equation. With tokens, content authors can be incentivized to make new content, transaction conversion can be driven up, etc.
Then Tokens can be sold through the public crypto exchange, driving the market cap of the product to billions of dollars.
OQTACORE has many working examples of tokenizing the business logic of products, and we can work together on fueling the economy of your product.

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Our cases

Flymining Cloud Mining platform

Flymining Cloud Mining platform

  • MVP PRO budget: $98k
  • Full project budget: $1.7m (ongoing)
  • MVP length: 3 months
  • Tech stack: Java, Javascript, Angular

The investor has $1.5m invested in Bitcoin mining equipment, and our task was to build infrastructure around it to ensure maximum profitability. As a result, we developed an international cloud mining web platform that allows people all over the world to invest in crypto mining.

Gametrade Market

Gametrade market

  • MVP PRO budget: NDA
  • Full project budget: NDA
  • MVP length: 8 months
  • Tech stack: React, Next.js, Node.js, AWS, Metamask, Web3.js, Ethers.js, Solidity

GameTrade is a specialized and convenient marketplace for trading virtual in-game NFTs. Our task was to make a hybrid of social media and a trading platform for gamers and professional traders, and now the platform provides advanced communication functionality for the best trading experience.



  • MVP PRO budget: $100k
  • Full project budget: $1m (crypto exchange registration, legal stuff)
  • MVP length: 1 year
  • Tech stack: Vue.js, C#, Solidity, BTCPay, PayPal

Tyrcoin is a stablecoin based on the Russian ruble. It was implemented as an ERC20 token on top of the Ethereum blockchain. MVP PRO included token development, official website. Full project included crypto exchange registration, legal stuff.


Blockchains we support

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Bitcoin is the oldest and the best-known cryptocurrency, the one for which blockchain technology was invented. It uses Proof-of-work consensus, doesn’t support smart contracts and cannot be used for anything else except as cryptocurrency. Many call it “blockchain gold”, because its main purpose is storage of value, just like real gold. Its rank on CoinMarketCap is #1 (January 2022).


Ethereum is a blockchain that uses Proof-of-work consensus, it was the first blockchain to introduce smart contract support. Its rank on CoinMarketCap is #2 (January 2022).


Ripple is a blockchain that uses Ripple Protocol consensus and doesn’t support smart contracts. Its cryptocurrency token is XRP, ​​ the purpose of which is to serve as an intermediate mechanism of exchange between two currencies or networks — as a sort of temporary settlement layer denomination. Its rank on CoinMarketCap is #6 (January 2022).


Cardano is a blockchain built on a Proof-of-Stake consensus protocol that aims to enable cross chain transfers via side chains, which conduct transactions between two parties off chain. It supports smart contracts. Its rank on CoinMarketCap is #8 (January 2022).


Solana is a blockchain that aims to host decentralized, scalable applications. It uses Proof-of-History (PoH) consensus and supports smart contracts, including NFTs and a variety of DApps. Its rank on CoinMarketCap is #9 (January 2022).


Avalanche is a blockchain built for the scale of global finance. It uses Proof-of-Stake consensus and supports smart contracts. Its rank on CoinMarketCap is #10 (January 2022).

Binance Smart Chain

Binance Smart Chain is a blockchain with smart contract capability compatible with Ethereum Virtual Machine (EVM). It was developed by Binance to extend functionality of the crypto exchange. It uses Proof-of-Stake Authority (PoSA) consensus. Its rank on CoinMarketCap is #11 (January 2022).


Polkadot is a blockchain that allows for distributed computing, and serves three distinct purposes: governance over the network, staking, and bonding. It uses Proof-of-stake consensus. Polkadot is designed as a web of standalone blockchains connected to a relay chain. The Polkadot relay chain itself doesn’t support smart contracts. However, since the parachains that connect to Polkadot can support arbitrary state transitions, they can support smart contracts. Its rank on CoinMarketCap is #12 (January 2022).


Polygon is a blockchain targeting the expansion of Ethereum’s capacity and resolving its scalability problems. It became popular due to its similarity to Ethereum and very low price. It uses Proof-of-Stake consensus and supports smart contracts. Its rank on CoinMarketCap is #16 (January 2022).


Tron is a blockchain that aims to host a global entertainment system for the cost-effective sharing of digital content. It uses Proof-of-Stake consensus and supports smart contracts. Its rank on CoinMarketCap is #25 (January 2022).


Algorand is a blockchain that aims to handle the volume of transactions needed for DeFi, financial institutions, and governments. It uses Pure Proof-of-Stake (PPoS) consensus and supports smart contracts. Its rank on CoinMarketCap is #29 (January 2022).


Stellar is a blockchain with a built-in decentralized exchange for crypto, forex, or securities, that uses Stellar Consensus Protocol (SCP) and supports smart contracts. Its rank on CoinMarketCap is #31 (January 2022).

Hedera Hashgraph

Hedera Hashgraph is a public ledger that uses hashgraph consensus, a faster, more secure alternative to blockchain consensus mechanisms. It supports smart contracts. Its rank on CoinMarketCap is #34 (January 2022).


Tezos is a blockchain for powering DApps that uses Liquid Proof-of-Stake (LPoS) and supports smart contracts. Its rank on CoinMarketCap is #45 (January 2022).


EOS is a blockchain that enables the development, hosting, and execution of DApps, it uses Delegated Proof of Stake (DPoS) consensus and supports smart contracts. Its rank on CoinMarketCap is #49 (January 2022).


Flow is a blockchain built on a Proof-of-Stake consensus that supports smart contracts and is targeted at metaverse development. Its rank on CoinMarketCap is #50 (January 2022).


NEO is a blockchain running on the delegated Byzantine Fault Tolerance (dBFT) consensus that supports smart contracts. NEO is unique in that it is focused on being regulatory-compliant. Every individual, business, or other entity operating on the NEO platform is required to have a unique digital identity that can be verified. Its rank on CoinMarketCap is #60 (January 2022).


WAX is a blockchain purpose-built for e-Commerce through DApps, NFTs, gaming, virtual worlds, and unique collectibles. It uses the Delegated Proof-of-Stake (DPoS) consensus, supports smart contracts and is backward compatible with EOS. Its rank on CoinMarketCap is #108 (January 2022).

supported blockchains

Technologies we work with

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Javascript is one of the main languages in startup development. Originally created for animating web pages only, it is now a full stack language of quick prototyping due to its simplicity and power. Software written in js is slow compared to other languages (but only in cases when CPU load is extremely high).


Node.js is a leading, open-source, cross-platform JavaScript run-time environment to easily build fast and scalable backend applications. Also the main language for cloud backends on AWS and other cloud platforms.


Golang is a relatively young language created for backend development of high-performance (or low-energy consumption) software. As it does not yet have a huge library of solutions, golang is mostly used for building side tools in projects, Docker configs, etc. But not limited to: golang can also be used for building server code, IoT firmware or blockchain nodes.


PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. It was created in 1995 and has a huge library of tools and extensions, but the language itself is lacking many modern features.


C++ is an old-school programming language used by real experts. Having a steep learning curve, C++ is usually used only when performance is a must. C++ is often used for writing critical sections of blockchain source code.


Python is a favorite language of DevOps engineers and machine learning experts. Both cases are due to the extensive variety of Python libraries in these topics. Most devops tools use Python as a main language, and for machine learning there are dozens of great solutions for Python.


Rust is just like Go, a relatively young programming language created for backend development. It has much more functionality than Go. But since it does not yet have a huge library of ready solutions to common problems, it is mostly used for side tools development. But just as Golang, Rust can also be used for building server code, IoT firmware or blockchain nodes.


Solidity is a script language specifically created for implementing smart contracts on Ethereum, though smart contracts on Ethereum can be implemented in other languages as well.


Vyper is a script language specifically created for implementing smart contracts on Ethereum. It is deliberately made simpler than Ethereum to make smart contracts more secure.


C# is a backend programming language. Constantly being updated, it is quite powerful with all the current trends. It also has a huge base of ready solutions and can be used for building a large enterprise system, as well as a small side tool. It might be considered for building DApps, smart contracts, and infrastructure in a blockchain environment.


Web3.js is a collection of libraries that allow you to interact with a local or remote Ethereum node.


Ethers.js is a lightweight javascript library which can be used as an alternative to Web3.js to build javascript frontend and interact with the Ethereum blockchain.


Angular.js is an open-source JavaScript framework for building web applications. Being popular in the early 2010s, it is now dropping in popularity.


React.js is a free and open-source front-end JavaScript library for building user interfaces based on UI components. The most popular js frontend framework, especially with its next.js distribution maintained by Vercel.


Infura is a Web3 backend and Infrastructure-as-a-Service (IaaS) provider that offers a range of services and tools for blockchain developers from testing to scaled deployment.

Hyperledger Fabric

Hyperledger Fabric is a distributed ledger framework for developing solutions and applications. It is a kit of everything a blockchain might need, and developers can build almost any blockchain using the toolset of hyperledger fabric.


AWS is a cloud services platform by Amazon.


GCP is a cloud services platform by Google.


Azure is a cloud services platform by Microsoft.


Metamask is a software cryptocurrency wallet used to interact with the Ethereum blockchain.

Wallet connect

Wallet connect is the web3 standard to connect blockchain wallets to an application.

Remix Ethereum

Remix Ethereum is a browser-based compiler and integrated development environment (IDE) that enables users to build Ethereum contracts.


Chainlink is a decentralized oracle network that provides real-world data to smart contracts on the blockchain.


Truffle is a world-class development environment, testing framework and asset pipeline for blockchains using the Ethereum Virtual Machine (EVM).


is a partner
not a dev shop
next door

Working with OQTACORE means it will guard the project in its first four years. We go through 1-2 investment stages together with the founder.

Every 1-2 years, the project will need to go for another financing round. Our task is to do the best possible combination of quality and functionality in the given time.

At the beginning of each period, we develop a roadmap, starting from marketing research and ending with specific investment strategies, such as VC, startup accelerator, crowdfunding, crypto funding, etc.

We have done dozens of pitch decks for our projects and know what investors want to see. We also build projects with a target investor in mind.

Your project needs to have maximum traction right before the start of the investment round to get the maximum valuation and interest of investors. The count of active customers values startups at the time of the deal.

We see the best results when founders spend equal amounts for development and advertising (50/50).

If you do not have free ‘unfair’ advertising channels like friend celebrities, your own TV show, etc. OQTACORE does not take projects where development consumes more than 70% of the total investment.

Every IT company is 30-50% about its software, and 50-70% of the business success is about execution.

OQTACORE’s company culture has a concept of “Execution culture”:
  1. Never overpromise
  2. Everything that is said to be done - must be done

All our employees are constantly reminded not to overpromise to their managers. And we as a company do not overpromise to our customers. Since we always do what we promise, take a deep breath and trust every word we commit. That is why OQTACORE is such a reliable partner, even though we might promise less than many of the dev shops.

Being trusted is extremely important for OQTACORE’s business model, as we only benefit from long-lasting relationships.

We are different from other dev shops. The OQTACORE team will not come with an echo of your words when asked to improvise. We know how to fill in blank spaces in the global vision of a startup founder.

You can focus on achieving the right vision for your business development while we take care of billing, payment systems, account management, support systems and other routine subsystems that exist in any software product.

It is up to you to decide whether you want to control the implementation of standard features or completely trust it to OQTACORE.

If you are a visionary startup founder, you may have a $20m idea that cannot be built with a $500k investment.

If you do not have a technical co-founder, it might be hard for you to understand what can and what cannot be implemented in short terms and with a tight budget.

OQTACORE will do the heavy lifting for you. We at OQTACORE have experience working with such cases. Together as a team, we come up with a bootstrapped version of your idea. In the beginning, it might look small compared to your vision, but it will get traction and move forward into the investment rounds until you reach the full potential of the product.

(An entirely fictional story, all similarity to real ideas/projects is coincidental)

A founder comes to OQTACORE with a pre-approved investment of $500k for building a new blockchain that would hold NFTs with artificial intelligence.
Each NFT has some personality. Some of them are constantly joking, others are very serious. NFTs can communicate with each other, and they can also be combined in super-NFTs that have a character built of individual NFTs.

Of course, such a project cannot be built with $500k; it would need around $20m.

We at OQTACORE offer our vision:

Build a blockchain from scratch
Build on top of already existing Polygon blockchain
Create a unique NFT technology
Use ERC721, a pre-existing NFT standard
Model personalities with AI
Hire some of the best authors to write unique chatbot dialogues and work on the interaction between various NFTs
Spend all budget on the development
Spend a considerable amount of investment, up to $200k, on advertising

This way, the product might get traction, get the next investment of $3-5m and move to the founder’s big idea. OQTACORE will come with an actual AI implementation for the next round.

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Supply Chain Management

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The supply chain management areas across different sectors are in need of transparency about their finances and decision-making. Blockchain DApps are the solution to prevent further complications. We can take a look at your business, analyze what is affecting your productivity, and explore the options for a solution.


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Blockchains will provide your business with high-standard security, transparency at all management levels, keeping accountability for every dollar, whether you are a startup business or a large corporation. Do you have problems with your finances, payments, or trading? We provide solutions to these and more problems using the latest algorithms and AI.


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The healthcare system manages a lot of sensitive data. Blockchains are often used to secure patients' information. HIPAA asks for advanced encryption on every single piece of data logged into any healthcare facility in the US.

Retail & eCommerce

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Crypto payments, secure data management, organized retail network, reduction costs, and more applications can be done for eCommerce businesses using DApps. Blockchains have prevented eCommerce platforms from being hacked, saving tons of money in useless firewalls and protection fees.

Social Sector

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Politics and social organizations have implemented Blockchains to protect someone’s privacy, democracy concerns, or any sensitive information related to these sectors.

Real Estate

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Every industry is moving towards a digital area, and the Real Estate sector is not falling behind. OQTACORE facilitates every transaction done between two parties, seller and buyer, eliminating the tedious paperwork we still have to deal with nowadays.

Governmental sector

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Blockchain technology is prepared to face the challenge in the governmental sector. Municipalities and governmental authorities have invested millions in making their institutions closer to the population. Implementing the use of DApps they’ve reached people who live the furthermost enabling more participation in decision-making processes.

Gaming Industry

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NFT Blockchain games are creating a furor in the financial market at the moment. Launch your project and bring to life the vision for a new currency or digital asset in the gaming industry.

We partner up with


You have an idea, and we help you make it happen. We reach inside your project’s vision and develop a step-by-step guide to meet your business goals and expectations. We will be in charge of:

  • Full Stack Development (Programming)
  • Crypto development
  • Whitepaper development
  • Tokenomics development
  • NFT development
  • UI/UX Design
  • Project & Product management
  • QA testing
  • Marketing Campaigns

Your startup will be the next unicorn, and we’ll just ride alongside to make your dream vision come true.


In enterprises, we take a deep look inside your business to pinpoint which Blockchains will be incorporated. After a thorough analysis, we can let you know the solutions on:

  • Specific needs
  • Business processes
  • Future developments
  • Financial organization

We will estimate the value of incorporating Blockchain DApps into your business.

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Hourly rates

Senior Product Strategist

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A Senior Product Strategist defines product vision and roadmap, focusing on generating business value for the client, rooted in a strong understanding of the market and current technological capabilities/constraints. They also communicate with the client to gather future requirements in projects by applying technical and business expertise.

Senior Technical Architect

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A Senior Technical Architect is responsible for designing the hardware and software infrastructure, choosing the right on-premise or cloud platform and tech stack, managing the process of development, deployment, and maintenance, and coordinating the software development team to ensure a predictable release process, data safety and security. They have at least 8 years of experience in software design and managing software development.

Senior Software Developer

More information Hide information $50/hr
A Senior Software Developer has advanced knowledge of programming languages and frameworks, understands the business value behind the software, and writes high-quality, feature-complete, robust code. They have 6+ years of commercial experience in software development.

Middle Software Developer

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A Middle Software Developer is tech-savvy with different programming languages and frameworks. They may be tasked with developing a part of the application to prepare it for the further transition to a senior developer. A middle software developer has 4+ years of working experience in commercial software development.

DevOps Engineer

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A DevOps Engineer has a deep understanding of applications development environment, database, data management, and infrastructure capabilities and constraints for software infrastructures of high complexity. A DevOps engineer ensures data safety and security, implements security protocols, and backups, as well as maintains an optimal amount of resources for cost optimization and quick rollovers during updates.

Senior Blockchain Developer

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A Blockchain Developer knows how to write smart contracts in the most efficient and secure manner. Each team member is involved in the current blockchain community and stays close with relevant updates in the industry.

Product Manager

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A Product Manager can define the product goals and roadmap, ensuring alignment with business objectives and company strategy. They prioritize product features based on customer needs, business potential, and technical scalability.

UX/UI Design

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A UX/UI designer is business savvy while keeping users’ needs at the forefront of the product’s designs. They have experience conducting customer research ranging from qualitative data analysis to hands-on usability testing. Our team includes top-notch UX and UI professionals with experience in designing B2B/enterprise-level products and services.

Business Analyst

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A Business Analyst at OQTACORE can develop, drive, and analyze existing and new workflows while building a clear understanding of the needs of the particular business. They work closely with the product owner and development team to enhance software solutions.

Project Manager

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A Project manager is a self-disciplined professional who can bring projects to closure with minimum direction, guidance, and oversight. They review deliverables prepared by the development team before they are passed to the client and provide clients with regular communication and updates.

Marketing Analyst

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A Marketing Analyst has 5+ years of experience with marketing campaigns and controls sales and pricing using marketing data, current and historical company data, competitive data, and trends. They track analytics across digital platforms and implement data-driven decisions to improve and evolve marketing strategies.

QA Lead

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A QA Lead provides process improvement, oversight, and technical guidance to the QA team in the analysis, design, testing, and deployment of applications ensuring all titles meet business deadlines while upholding a high level of quality.

QA Engineer

More information Hide information $25/hr
A QA Engineer organizes the creation and execution of test scripts for multiple products, tracks the quality performance of the product, reports testing results, and provides performance recommendations to development teams.


blockchain game

Launching your own turnkey blockchain game

Non-fungible token (NFT) blockchain games are creating a furor in the financial market at the moment...

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NFT marketplace

How to build your own NFT marketplace from scratch

Most of the existing NFT marketplaces are aimed at the world of digital art, sports cards...

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shaking hands

9 Steps to Create Your Own DeFi Project From Scratch

DeFi has already gained the status of a serious market for IT products, which is suitable for...

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Photo of Nikolay E
Nikolay E.

OQTACORE team built for me a cloud mining platform This is the second project that we are conducting together with OQTAСORE. Their staff has done miracles in terms of the speed of developing the first working MVP. In 2 months after the start, we have seen the first registrations of real users and the first revenue. An important detail - the MVP was built so that it could be scaled and extended upon with new functionality to become a fully functional enterprise-level system without refactoring.

Unknow user photo

OQTACORE was recommended by one of our partner companies. We worked with many development companies for comparison. The best part of a partnership with OQTACORE team is that in addition to exceptional quality specialists, the founders Dmitriy and Saveliy, take care of all the details and let me focus on strategic thinking. I give them the main direction and they tackle how the product should look and feel. The quality of their specialists and the price that we are paying for that quality is fair.

Photo of Mark Galdin
Mark Galdin

OQTACORE built reliable solutions, and they collaborated well with us to generate results meeting your standards, timeline, and budget. They offer a broad scope of knowledge and can bring a variety of technologies into a project. They are a great partner with a goal-oriented mindset.

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