Our Services

Smart Contracts Development

Implement smart contracts to automate enforcement in RootStock and Ethereum. We can write your smart contract's code securely.

Smart Contracts Audit

Security flaws, misbehavior and inefficiency are very expensive when you deploy a Smart Contract to the Blockchain. We help companies to make the best Smart Contract code.

Exchanges

Develop safe and reliable cryptocurrency exchanges.

Blockchain Development

Implement cryptography-based technologies to store immutable data. We can help you choosing which of your processes are suitable for this technology.

Hyperledger

Develop Financial, Health Care, Retail, Manufacturing, etc. private blockchains on Hyperledger.

Private Blockchain Development

Implement a private blockchain in your institution or corporation.

Loan Data Sharing

Use the blockchain to share credit information between different banks to avoid multiple loan requests using the same documentation.

Supply Chain Blockchain

Implement a complete supply chain on a blockchain to track the whole process in a single place. Collaborative Commerce enables trade partners interact in a frictionfree manner, gaining deep visibility into their supply chain so they can make smart forecasting decisions.

Wallets

Protect traditional wallets and multi-signature wallets to guarantee s ecurity.

Crowdsale

Fund your product ideas with Initial Coin Offerings (ICO) on Ethereum. We can develop your Smart Contracts securely.

Training

Teach your team to understand the development on blockchain technologies and be prepared for the next moves.

Proof of Existence (PoE)

Create your own notary registry. We can license our document registry system built on top of Ethereum for private or public blockchains. It allows users to manage and sign documents.

About Us

We have more than 20 years of experience building and reviewing security applications, and have active in the cryptocurrency field. We have designed new bitcoin-related cryptocurrency protocols and discovered and reported various security vulnerabilities.

Our software development service includes helping customers define product specifications, designing UI & UX design, integrating applications, QA, deploying the product to a hybrid cloud environment, and continued support.

Why CoinFabrik?

Unrivaled Technical Expertise in Cryptocurrencies and Blockchain Development

Our blog is full of knowledgeable articles by our team of experts in the field. Our reputation is based on our work for many top blockchain influencers.

Quick Responders

We understand the time pressures of technology implementations and software development. Our team can efficiently integrate with yours to reach your goals.

Customizable Solutions

The market does not offer software to fit every business’ needs. We can work with you to find the best way to do what you need done. Our thorough knowledge of currently available technology allows us to write your solution on top of existing software when designing something from scratch is unnecessary. CoinFabrik provides full stack services including Smart Contract development, back-ends implementing RESTful APIs, web Dapp front ends, and mobile applications written for iOS and Android.

Security Experts

CoinFabrik's founders come from the software security industry. All team members are familiar with security threats and know how to develop secure Smart Contracts and secure code in general. We take pride in our carefully written code.

Cryptocurrency Supporters

We have been playing with and working on blockchain development from the early stages. We use and accept Bitcoins. We believe in blockchain technology’s capacity to disrupt Fintech.

Case Studies

Jaxx Wallet: Multi-cryptocurrency wallet back-end and infrastructure

Jaxx wallet is a multi-cryptocurrency wallet which is able to send and receive currencies, and convert them using ShapeShift integration.
CoinFabrik built back-end infrastructure for over 10 different cryptocurrencies. We also integrated Jaxx with Ethereum smart contracts.

Rootstock: Implement Merge-mining

RSK is an open-source smart contract platform with a 2-way peg to Bitcoin. The RSK network uses PoW rewards like Bitcoin does.
CoinFabrik modified Bitcoin Core to add opcodes for side chains, adapted pool servers for merge mining, and implemented the BIP-R10 Bitcoin improvement proposal with segregated witness support (segwit).

TrustStamp: Identity verification using smart contracts

CoinFabrik developed a smart contract which stores user identity information. This information can be viewed in the contract but can only be altered by TrustStamp.

Wayniloans: Peer-to-peer Lending

Taking out loans in South America is difficult and many people are outside of the financial system. Wayni Loans makes it easy to get a loan by using a social network based system to rate borrowers, and bitcoin to bypass local currency regulations.
CoinFabrik wrote a back end that interacts with a Bitcoin node to perform transactions. We built a database to optimize transactions and reduce fees paid by borrowers and lenders.

Sig3: Anti-fraud detection using multi-signature wallets

Multi-signature technology allows Bitcoin / Ethereum wallets to require more than one signature to approve transactions.
Using this technology, Sig3 is registered as a cosigner in a multi-signature wallet and automatically cosigns the transaction based on the user’s security policies. However, if a transaction violates a policy, Sig3 withholds its signature and notifies the user of the policy violation via email or text message.
CoinFabrik developed both the front end and the back end.

CryptoKit: Support for elliptic curve on OpenPGPJS

CryptoKit wanted to use Bitcoin and Ethereum keys for secure messages, but OpenPGP did not support the required elliptic curves (RFC 6637).
CoinFabrik added this support and created a pull request to add it to the OpenPGPJS project.

Management Team

Sergio Lerner

Sergio has been working in information security since 1994. He is currently active in the cryptocurrency community and has discovered several vulnerabilities and proposed over 50 design improvements, some of which have become part of bitcoin and is one of the creators of RootStock (RSK), the most promising smart contract platform. He also blogs frequently at Bitslog.

Pablo Yabo

Pablo began working in the computer security field in 1997. Since then he has been responsible for designing a variety of security-related products and leading product development teams, first at Core Security Technologies and later at Nektra Advanced Computing which he co-founded with Sebastian Raul Wain in 2003.

Sebastian Raul Wain

Sebastian started out as a white hat hacker in 1995. He is currently focused on software architecture and systems integration and specializes in guiding customers through the process of honing their ideas into a finished design. He continuously surveys industry trends for exciting developments.

CoinFabrik

Blockchain Technologies, FinTech and Smart Contracts Development