沃伦·施瓦茨,南非海豚海岸的开发者
Warren is available for hire
Hire Warren

Warren Schwartz

Verified Expert  in Engineering

Software Developer

Location
Dolphin Coast, South Africa
Toptal Member Since
December 28, 2021

沃伦从事软件开发已经20年了, and he has delivered hundreds of successful projects. In the previous four years as a CTO, 他自豪地领导了一个由五名开发人员组成的团队,使用区块链和传统技术开发了一些很棒的应用程序.

Portfolio

Lab27
Blockchain, Web3.js, Aurelia, TypeScript, C#.NET, React, Blazor, Node.js...
Shane Richardson
Solidity,区块链,JavaScript,以太坊智能合约...
Libertas GH PTY LTD
React, Web3.js, Node.js, Smart Contracts, Truffle

Experience

Availability

Full-time

Preferred Environment

WhatsApp, Slack, Visual Studio Code (VS Code)

The most amazing...

...我开发的是一种新型的加密货币,它可以自动在稳定币和一篮子顶级资产之间进行交易,以维持和增长.

Work Experience

Chief Technology Officer

2018 - PRESENT
Lab27
  • 管理一个伟大的团队,并建立了一个行业领先的燃料管理软件称为FuelRite,帮助燃料批发商管理库存, track logistics, and facilitate customer and supplier orders.
  • 在所有项目中使用Azure DevOps,在大多数项目中使用CI/CD,并管理DevOps上的所有问题, too.
  • Launched a number of successful ICOs for clients. 最近,我主要为NFT项目设计和编写代码. Most notably, 这些图像和元数据存储在IPFS上,我们利用EIP-2981计算了版税.
Technologies: Blockchain, Web3.js, Aurelia, TypeScript, C#.NET, React, Blazor, Node.js, Azure DevOps, MacOS, OpenZeppelin, Ethereum Smart Contracts, Ethereum, Ganache, Truffle, Smart Contracts, Blockchain & Cryptocurrency, HTML, JavaScript

Solidity Developer

2022 - 2022
Shane Richardson
  • Created the main NFT contract and a marketplace contract. 网站功能类似于ArtBlocks,但有显著的改进. 通过Merkle树的项目和白名单的概念被纳入NFT合同.
  • Tracked improvements through GitHub issues, 我使用了Hardhat和Gas Reporter进行测试和优化.
  • 满足需求并编写了超过50个的广泛测试,以确保契约是可靠的.
Technologies: Solidity,区块链,JavaScript,以太坊智能合约, Non-fungible Tokens (NFT), Ethereum, Web3.js, Hardhat, Node.js, Vue

Senior React and Web3 Developer for a Blockchain Company

2022 - 2022
Libertas GH PTY LTD
  • 为他们的TSF区块链开发了一个分散的NFT市场. 该市场允许用户铸造、列出、提供和拍卖nft.
  • 为TSF网络建立了第一个市场,我们将IPFS用于所有元数据和图像存储.
  • Improved speed, given that the platform had full metamask integration, 将智能合约存储和IPFS元数据同步到MongoDB.
Technologies: React, Web3.js, Node.js, Smart Contracts, Truffle

Senior Full-stack Developer

2015 - 2017
NRTH
  • 为房地产行业开发了一个基于crm的系统,至今仍在使用和喜爱.
  • Used Jira for issue tracking and TeamCity for CI/CD.
  • 建立了一个非常酷的应用程序在赛马游戏的赌注. 这款应用帮助他们通过反向押注竞争对手来对冲巨额赌注,从而消除潜在的损失.
Technologies: Aurelia, ASP.NET, TypeScript, Web MVC, Jira, TeamCity, Node.js, AngularJS, HTML, JavaScript

Founder

2007 - 2014
Cherangani
  • 2007年成立公司,协助建立安利业务的多层次营销商追踪他们的网络. It was the only one like it in the world.
  • 构建一个系统,收集团队成员及其上下行关系,并使用SVG在线图形化地呈现信息. 用户可以注释他们的团队,并就如何进一步发展团队进行协作.
  • 使用Netcash将自动借记订单集成到平台中.
技术:DotNetNuke (DNN), c#, SQL, SVG, HTML, JavaScript

Senior Full-stack Developer

2009 - 2010
3fifteen Technology Solutions Pty (Ltd)
  • Helped start the Durban office as the first developer.
  • Implemented a safety, health, 和环境应用程序在MS SharePoint为一个非常大的和有信誉的纸张生产商.
  • 致力于一个业务流程应用程序,该应用程序促进了将新库存项目及其相应的条形码注册到全局注册商. This was for one of the largest retailers in the country.
Technologies: SharePoint, C#.NET, HTML, JavaScript

FuelRite

非洲批发经销商的燃料管理系统. 它管理车队和仓库库存以及交付的全部物流. 谷歌api被用于优化路线和司机应用程序投票位置,以通知客户距离和交付时间.

Minted History

一个独特的NFT项目,不像大多数的PFP项目. 我们的收藏展示了加密历史上重要时刻的报纸头条. 我们创建了一个铸币页面,允许早鸟铸币和公共铸币. In addition, 智能合约执行版税,允许永久享有所有二级销售的5%份额.

In order to further bolster value, 我创建了一个彩票平台,在这个平台上,这些nft可以押注,以换取代币和彩票点数. Based on token rarity, points are multiplied, and as a result, these points translate into tickets for a monthly lottery, 其中一部分的铸币厂收入的赌注和赚取利息.

Learn to Break Free

一个门户网站,为独立企业主(IBO)建立安利业务. 该平台刮掉了IBO的赞助线,并展示了他们小组的图形格式. In addition, 我们从他们的教育合作伙伴那里收集信息,并将其叠加到SVG图形上,以创建他们团队的整体实时快照.

我使用Docusign和Netcash实现了自动借记订单.

Demoverse

http://www.demoverse.com
为音乐行业的NFT平台构建了所有的web3组件. 智能合约管理艺术家版税,并提供一个市场来管理音乐nft的上市和拍卖.

Phigitals

我为一个基于服装的NFT平台构建了所有的web3组件, 其中包括一份管理这些nft上市的市场合约. 我们必须开发一个独特的赌注系统,使我们能够在托管系统中跟踪NFT的所有权到实物资产(服装项目).

Languages

C#, Solidity, TypeScript, HTML, JavaScript, SQL, C#.NET, HTML5

Frameworks

.NET, Truffle, AngularJS, Tendermint, Next.js, Aurelia, Blazor, ASP.NET, Hardhat

Libraries/APIs

Web3.js, OpenZeppelin, React, Node.js, Google Maps API, Vue

Tools

Ganache, Slack, Jira, TeamCity

Paradigms

Azure DevOps

Platforms

Ethereum, Blockchain, Windows, MacOS, Azure PaaS, SharePoint, Visual Studio Code (VS Code), DotNetNuke (DNN)

Other

Ethereum Smart Contracts, Smart Contracts, Blockchain & Cryptocurrency, Non-fungible Tokens (NFT), Cosmos SDK, Ethermint, WhatsApp, WebAssembly, Avalanche C-Chain, Web MVC, SVG, Computer Skills, Networking, DocuSign

JUNE 1999 - PRESENT

CompTIA N+

The Computing Technology Industry Association (CompTIA)

MARCH 1999 - PRESENT

CompTIA A+

The Computing Technology Industry Association (CompTIA)

MARCH 1999 - PRESENT

Microsoft Certified Solution Developer

Microsoft

Collaboration That Works

How to Work with Toptal

在数小时内,而不是数周或数月,我们的网络将为您直接匹配全球行业专家.

1

Share your needs

在与Toptal领域专家的电话中讨论您的需求并细化您的范围.
2

Choose your talent

在24小时内获得专业匹配人才的简短列表,以进行审查,面试和选择.
3

Start your risk-free talent trial

与你选择的人才一起工作,试用最多两周. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring