Robert is available for hire
Hire RobertRobert Pardela
Verified Expert in Engineering
Blockchain and Full-stack Developer
Location
Warsaw, Poland
Toptal Member Since
October 7, 2022
Robert是一名专注于区块链的企业家、IT经理和开发人员. He has spearheaded dozens of large-scale projects, teams of over 40, and a budget of $30 million to deliver nationwide systems. Blockchain inspired him and changed the way he looked at IT systems. Robert以他的创新能力和将项目从想法带到成功实施的能力而闻名. He enjoys creating IoT solutions on Raspberry Pi and Arduino as a hobby.
Portfolio
Bchain Partner
JavaScript, Solidity, Node.js, Blockchain, Ethereum, Web3.js, APIs, REST APIs...
R-SOFT
JavaScript, Solidity, Angular, Node.js, Xamarin, IPFS, Ethereum...
Uneedev
JavaScript, TypeScript, AngularJS, Angular, Node.js, Apache Spark, Elastic...
Experience
Availability
Part-time
Preferred Environment
MacOS, Git, Xamarin, Hardhat, Jest, Ethereum, Node.js, Blockchain, Linux, Mocha
The most amazing...
...监督实施的项目有波兰紧急情况通报系统和国家医疗救援服务指挥支持系统.
Work Experience
Senior Full-stack Developer | CTO
2019 - PRESENT
Bchain Partner
- Designed and developed a complete Blockchain platform from scratch. 它具有高性能，并提供企业级解决方案所需的最高级别的安全性. It is designed to store large volumes of data.
- Created REST APIs and WebSockets. 使用的技术堆栈:区块链(以太坊和多边形)，Solidity, Node.js, Bootstrap, LevelDB, Infura, Alchemy, and Tatum.
- Defined requirements for the system as the product owner.
- Conducted quality control of source code using Atlassian tools. Oversaw software by team members.
- Defined tasks and work for team members using Atlassian tools.
- Created iOS and Android apps in Xamarin. Experienced with Xamarin. Forms, XAML, and renderers to handle native operating system features. Handled push notifications, created communication via REST API, and prepared the library to generate charts.
Technologies: JavaScript, Solidity, Node.js, Blockchain, Ethereum, Web3.js, APIs, REST APIs, LevelDB, WebSockets, Software Architecture, Crypto, Web Applications, Web Development, Jest, WebStorm, Team Leadership, Technical Leadership, CTO
Owner
2000 - PRESENT
R-SOFT
- Developed software for a so-called durable medium using Ethereum and IPFS. Built the back end using Node.js.
- 创建智能合约(Solidity)，用于大量文档处理和用户身份验证.
- Delivered mobile applications for clients, e.g., InTrack Mobile and EnergyLogServer Mobile using the Xamarin platform.
- Developed software using the Angular and React frameworks.
- 创建了允许验证产品原创性的NFT令牌. The token runs on the Polygon platform. The smart contract was extended and complies with the ERC721 standard.
- 熟悉了Merkle等有向无环图(DAG)等数据结构.
Technologies: JavaScript, Solidity, Angular, Node.. js、Xamarin、IPFS、以太坊、智能合约、不可替代代币(NFT)、以太币.js、区块链、VS Code、jQuery、REST api、Hardhat、Web3.js, MetaMask, Directed Acrylic Graphs (DAG), gRPC, React
Senior Full-stack Developer
2017 - 2021
Uneedev
- 为ElasticStack开发软件，附带额外的事件管理和智能插件(机器学习模块).
- Prepared software for ESG scoring using Angular2+.
- 用Xamarin创建了一个库，允许在移动应用程序中绘制图表.
Technologies: JavaScript, TypeScript, AngularJS, Angular, Node.js, Apache Spark, Elastic, Machine Learning, Plugins, jQuery, Web Applications, Web Development, WebStorm, Team Leadership, Technical Leadership
Software Development Director
2015 - 2017
Engave
- Served as team leader, designer, and front-end developer. Designed and developed software to manage medical facilities.
- Created complex user screens with scheduling components.
- Conducted code quality check with Mantis issue tracker and SonarQube.
Technologies: JavaScript, Git, jQuery, Bootstrap, Microsoft SQL Server, SonarQube, Software Architecture, IT Management, Management Information Systems (MIS), Team Leadership, Technical Leadership
Program Manager
2013 - 2015
行政和数字化部信息技术项目中心
- 管理全国突发事件通报系统和国家紧急医疗服务指挥保障系统的启动和实施.
- Spearheaded over a dozen projects under the program, a team of more than 40 people, and a budget of $30 million.
- Coordinated the work of many external suppliers and internal teams.
- 对正在实施的技术解决方案进行评估并提供意见.
Technologies: IT Projects, IT Management, Program Management, Management Information Systems (MIS), Team Leadership
Experience
TOPASS NFT
http://topass.inTOPASS代币提供了一种独特的保护措施，防止单一包装准确性的假冒商品的可能性. 消费者将能够在购买后立即验证产品的原创性.
使用TOPASS令牌的安全性可防止仿冒产品的安全特性复制和倍增, which is possible with hologram security features. TOPASS令牌还有许多其他用途，在网站上有介绍.
The TOPASS smart contract runs on a public blockchain platform. We use the efficient L2 Polygon platform for this purpose. It guarantees high performance and low transaction fees. 我们可以根据您的要求在另一个以太坊兼容的平台上运行我们的智能合约.
我负责实现NFT令牌并根据客户需求修改它们. I also programmed a middleware server using Node.js and Express.js，它提供了一个REST API，使客户端系统能够使用令牌.
使用TOPASS令牌的安全性可防止仿冒产品的安全特性复制和倍增, which is possible with hologram security features. TOPASS令牌还有许多其他用途，在网站上有介绍.
The TOPASS smart contract runs on a public blockchain platform. We use the efficient L2 Polygon platform for this purpose. It guarantees high performance and low transaction fees. 我们可以根据您的要求在另一个以太坊兼容的平台上运行我们的智能合约.
我负责实现NFT令牌并根据客户需求修改它们. I also programmed a middleware server using Node.js and Express.js，它提供了一个REST API，使客户端系统能够使用令牌.
S3DOC
http://s3doc.comS3DOC信息系统是具有数字签名(eIDAS)的新一代持久介质。, the so-called softWORM, 通过在软件中实现的算法和加密方法领域应用世界上最好的实践和标准来保证耐用性. S3DOC是一个创新的欧盟范围内的信息系统，具有持久介质的特点.
我设计并开发了基于以太坊和IPFS的S3DOC持久介质. I created complex smart contracts, e.g., data storage, user management (user register, personal data, authentication), and document management (document register, document metadata). 我构建了去中心化的软件，将文档存储在IPFS上，并将其元数据存储在以太坊上. In the second version of the system, I moved all the software to a new blockchain platform written in Node.与以太坊和IPFS相比，实现了更好的性能和安全性.
我设计并开发了基于以太坊和IPFS的S3DOC持久介质. I created complex smart contracts, e.g., data storage, user management (user register, personal data, authentication), and document management (document register, document metadata). 我构建了去中心化的软件，将文档存储在IPFS上，并将其元数据存储在以太坊上. In the second version of the system, I moved all the software to a new blockchain platform written in Node.与以太坊和IPFS相比，实现了更好的性能和安全性.
BCHAINNODE
http://bchainpartner.com/bchainnode-wiecej-niz-blockchain/A proprietary blockchain platform designed for enterprise corporations. The platform provides the highest level of security and performance. It is designed to store large volumes of data, run smart contracts, create performance and reliability clusters, and use zero-knowledge-proof procedures to secure data. The platform is written in JavaScript and runs in the Node.js environment. 它采用模块化设计，每个模块负责其技术特性.g.， P2P模块管理区块链网络节点之间的通信.
Seeing the limitations of the Ethereum platform in enterprise applications, 我提出从零开始创建一个新的区块链平台，它具有大型金融机构所需的高性能和安全级别. I designed the architecture and developed the core modules of the platform.
Seeing the limitations of the Ethereum platform in enterprise applications, 我提出从零开始创建一个新的区块链平台，它具有大型金融机构所需的高性能和安全级别. I designed the architecture and developed the core modules of the platform.
PENNYCUT
http://pennycut.comA micropayment platform that enables pay-per-content billing. 用户创建一个预付帐户，并购买令牌来支付访问门户等数字内容的费用, newspaper articles, movies, and blogs. PENNYCUT operates on a blockchain platform.
Unit-test-script-generator
http://www.npmjs.com/package/unit-test-script-generatorunit -test-script-generator是一种工具，它允许开发人员快速准备运行在Jest和Mocha等流行框架上的单元测试脚本. 该包可以在npm平台上使用，并且完全是在Node中编写的.js and JavaScript. The package can be used to test smart contracts.
Smartcontract-api-generator
http://www.npmjs.com/package/smartcontract-api-generator开发在区块链平台上运行的软件通常需要创建一个智能合约和一个与之交互的后端程序. 该包允许用户根据智能合约的ABI配置生成API库. After calling the generator, 用户将获得一个完整的库来与智能合约中的所有功能进行交互. 这个生成器是用TypeScript编写的，可以在npm的存储库中找到.
S3DOC Mobile
http://apps.apple.com/pl/app/s3doc-mobile/id1501858274A mobile application dedicated to S3DOC users. It allows you to access documents stored on persistent media, view them, and review the history of events. 该应用程序支持关于新文档的推送通知，还支持生物识别登录. It works on Android and iOS platforms.
渲染器用于支持操作系统的独特属性.
The application supports a secure REST API.
渲染器用于支持操作系统的独特属性.
The application supports a secure REST API.
Intrack Mobile
http://apps.apple.com/app/id1614265223An application that allows access to the Intrack system data. It is characterized by an advanced UI and many charts. A .. NET库是专门为这个项目创建的，用于绘制动画图表.
The application runs on Android and iOS. 渲染器用于支持操作系统的独特属性.
The application supports a secure REST API.
The application runs on Android and iOS. 渲染器用于支持操作系统的独特属性.
The application supports a secure REST API.
Skills
Languages
JavaScript, Solidity, XAML, TypeScript, CSS, HTML
Libraries/APIs
Node.js, REST APIs, Xamarin.iOS, Xamarin.Android, jQuery, JSON-RPC, Web3.js, React
Paradigms
REST, Unit Testing, Testing
Platforms
Xamarin, Blockchain, Ethereum, Mobile, MacOS, Visual Studio Code (VS Code)， Linux, Docker
Other
Software Development, Smart Contracts, Ethereum Smart Contracts, Ethers.js, Software Architecture, Web Applications, Web Development, Application Binary Interface (ABI), Digital Signatures, Xamarin.Forms, Decentralized Systems, Decentralized Applications, Back-end, Front-end, Full-stack, Full-stack Development, CTO, Portfolio Management, IT Management, IPFS, Management Information Systems (MIS), Program Management, WebSockets, Non-fungible Tokens (NFT), Crypto, Charts, Web 3.0, Team Leadership, Technical Leadership, Global Project Management, IT Projects, Software Design, Machine Learning, Plugins, APIs, Hardhat, Directed Acrylic Graphs (DAG)
Frameworks
Angular, AngularJS, Bootstrap, Jest, Apache Spark, gRPC
Tools
WebStorm, Git, Elastic, MetaMask, SonarQube, Mocha, NPM
Storage
LevelDB, Microsoft SQL Server
Education
2006 - 2008
Master's Degree in MBA IT
Kozminski University - Warsaw, Poland
2000 - 2001
Postgraduate Studies in Computer Science
SGH Warsaw School of Economics - Warsaw, Poland
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