Creating groundbreaking technological blockchain solutions and protocols:
- We are developing cryptocurrencies and tokens based on your preferences, building something absolutely new, or using existing solutions, based on the most popular blockchains such as Bitcoin, Ethereum, Solana, Cosmos, Tron, Fantom, Avalanche, and others.
- Using Ethereum or Cosmos SDK, we develop a Layer 2 solution for you deployed on top of existing blockchains. We will provide compatibility between your platform and other blockchains to facilitate network support and integration with other platforms.
- We've been writing smart contracts since the ICO boom in 2017. With nearly five years of experience, we have a preference for Solidity in Ethereum, Binance Smart Chain, and other EVM-compatible blockchains. In March 2021, with the introduction of the beta version of the Solana ultra-performance blockchain, we expanded our existing stack with Rust language for smart contract development.
Let's jump to the future together.
Focus Areas
Service Focus
- Blockchain Technology
Client Focus
- Medium Business
- Large Business
- Small Business
Industry Focus
- Financial & Payments
- Banking
- Gambling
Sfxdx Reviews
- All Services
- Blockchain Technology
- Relevance
- Most Recent
- Rating: high to low
- Rating: low to high

Tipping and Staking mechanism
Review Summary
What was the project name that you have worked with Sfxdx?
Odeum
Describe your project in brief
We are building a decentralised podcast and audio platform which allows users to tip content creators and share the rewards via a unique tipping and staking mechanism
What is it about the company that you appreciate the most?
Brilliant communication, strong work ethic, highly skilled, attention to detail
What was it about the company that you didn't like which they should do better?
Timezone is a few hours different

Sfxdx team helped us on developing the token (ERC20) and the smart contract on Ethereum chain for our blockchain project.
Review Summary
I want to highlight the professional and quality of work the Sfxdx team delivered to us. Our smart contract and token is audited by Certik Foundation, a leading blockchain audit firm. We got score 90+ out of 100. See the audit report from here: https://www.certik.org/projects/obortech
What was the project name that you have worked with Sfxdx?
OBORTECH - Smart Hub. https://www.obortech.io/
Describe your project in brief
We aim to create the Smart Hub, a fully digital ecosystem for all actors in supply chain, where they can remotely collaborate in a decentralized and democratic blockchain network regardless of their size and IT capability. The Smart Hub offers: · Blockchain and cloud powered communication hub, · Tamper-proof, unified and online document exchange, · IoT based real-time visibility and tracking, · Open and decentralized networking marketplace. OBOT token is a main instrument for digital economy of the Smart Hub network. Members of the network can use OBOT token on performing transactions on the platform, escrowing contract bonuses, launching crowdfunding activities to the network community, exchanging services in the Smart Hub marketplace, voting on governance policies and activities, and getting rewards based on their performance ratings.
What is it about the company that you appreciate the most?
The team was professional in communication and planning the project and delivered the task on time.
I appreciate the quality of work they did to us. We've been audited by the Certik, a leading blockchain audit company, and got scored 90+.
What was it about the company that you didn't like which they should do better?
We haven't had any issue with Maxim and the Sfxdx team.
Excellent Work and Proyects.
Review Summary
What is it about the company that you appreciate the most?
all good, very good work, and development.
What was it about the company that you didn't like which they should do better?
all good, very good work, and development.
Sfxdx is a great choice for any custom development needs a project needs!
Review Summary
Sfxdx employs a team of specialists that have expansive knowledge and experience in solution based development across the full spectrum of innovative development needs of the client.
Our large-scale project was fully integrated with blockchain, tokenomics, smart contracts, frontend and backend developments. In each area, Sfxdx worked in a consistent manner of excellence while paying close attention to detail and achieving a meaningful solution to create the reality.
To implement all aspects of development towards fulfilling the entire goal, clear and concise milestones and sprints were defined and agreed upon, contracts paid and fulfilled!
A small listing of what Sfxdx did for us is as follow;
Blockchain:
- Voting Token Sale Contract development (Store)
- Development of the factory
- Administrating SC development for Factory & Store smart contracts
Frontend:
- Metamask integration
- Function of authorization users by wallets
- Homepage layout + business logics
- Profile page layout + business logics
- Proposal list layout + business logics
- Admin panel layout + business logics
Backend:
- User registration by wallets
- Proposer: Create-edit polls
- Organization of data flows between microservices on event queues
And...our service needs needed the following individuals to reach our goals;
- 1 Analytic
- 1 blockchain developer
- 3 backend developers
- 3 frontend developers
- 1 devops
- 1 tester
- 1 project manager
- 1 sales manager
Professional communication, straight forward dialogue, and detailed Project Management were all present throughout our experience with Sfxdx - and we will be using this excellent group of highly intelligent developers again in the near future!
What was the project name that you have worked with Sfxdx?
REPRESENTDAO
What is it about the company that you appreciate the most?
Sfxdx is - knowledgeable, professional, experienced, available, organized, up front regarding costs and possibilities, eager, intelligent, current in innovations, and so much more...
What was it about the company that you didn't like which they should do better?
We did not experience any detail for improvement as Sfxdx met our goals and objectives through constant communication and negotiations.
The sfxdx team are also very proficient coders.
Review Summary
What was the project name that you have worked with Sfxdx?
poker game decentralized application
What is it about the company that you appreciate the most?
There is nothing thus far that they haven't been able to do, they either already know how to do or they study and figure it out, the latter is what separates them from past fintech companies we've worked with.
What was it about the company that you didn't like which they should do better?
nothing that i can think of at the moment