Alexander Wilczewski, Developer in Denver, CO, United States
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Alexander Wilczewski

Verified Expert  in Engineering

Full-stack Developer

Location
Denver, CO, United States
Toptal Member Since
August 19, 2021

Alex是一名全栈开发人员，拥有一系列软技能和DevOps能力. 他知道定期沟通对于确保准确的方向和责任至关重要. Having worked among startups, Alex can ramp up quickly to any project. After studying within an enterprise, he is capable of leadership, task breakdown, and drawing out project designs.

Full-stackJavaScriptSQLPHPMySQLC#.NETC#.NETFront-endIISWindowsCSSGitApacheAgile Project ManagementPower AutomateFull-Stack PHPBlackboardHarvestGoogle FormsFreeCADFileMakerDiviOracle SQLDedicated PHP

Portfolio

OkaySo
Node.js, Git, GitHub, Amazon Web Services (AWS), Amazon RDS, Amazon S3 (AWS S3)...
Freelance Client
Windows Subsystem for Linux (WSL), Node.js, Auth0, JSON Web Tokens (JWT)...
Freelance Client
JavaScript, CSS, HTML, WordPress, Vue, Advanced Custom Fields (ACF), PHP...

Experience

SQL - 10 yearsJavaScript - 10 yearsGit - 10 yearsApache - 10 yearsPHP - 7 yearsArchitecture - 4 yearsC# - 3 yearsAzure - 3 years

Availability

Part-time

Preferred Environment

C#, .NET, JavaScript, MariaDB

The most amazing...

...project I've led was an aggregated logger for our many enterprise applications, allowing proactive insights and diagnostics.

Work Experience

Technical Lead

2021 - PRESENT
OkaySo
  • 通过分析和减少数据库和计算大小以满足需求，并使用托管AWS服务替换资源，将AWS成本降低了80%.
  • 为非营利性董事会管理和组织提供流程和文件决策建议.
  • Improved security for our third-party services (AWS, GitHub, Auth0), as well as within our cloud document management service (Google Drive).
  • Maintained and developed features for a React administrative web app, a Node.js/Express.js API中间层，以及我们面向用户的React Native Android/IOS移动应用.
  • Coordinated and led projects for volunteer staff. 项目包括使用谷歌表格和谷歌表格收集和测量数据, collection of geolocation from IP addresses, and replacement of third-party services to protect user data.
  • 与外部组织合作，了解用户的数据隐私需求, creating timelines to complete projects to protect our users.
  • Converted Node.js API middle tier to TypeScript from Babel. The intention is to help developers refactor code.
  • Built tooling to easily deploy within the AWS ecosystem. 自动CLI指令包括与S3、CloudFront、CodeBuild和ECS的交互.
Technologies: Node.js, Git, GitHub, Amazon Web Services (AWS), Amazon RDS, Amazon S3 (AWS S3), Amazon Simple Email Service (SES), AWS IAM, AWS CLI, AWS Fargate, MariaDB, Metabase, React, React Native, NPM, Papertrail, SendBird, Auth0, Mailchimp, JavaScript, Slack, Google, Jira, JSON Web Tokens (JWT), Express.js, SQL, TypeScript, Babel, Full-stack, Looker, Google BigQuery, Firebase, SendGrid, Google Sheets, Google Forms, Docker, Zapier, Notion, Firebase Cloud Messaging (FCM)

Full-stack Developer

2021 - 2022
Freelance Client
  • Upgraded all npm dependencies and updated source code during breaking changes.
  • 改进了登录文档，以匹配依赖项的正确版本，并记录了在Windows上为Linux设置Windows子系统(WSL)的步骤.
  • Communicated work asynchronously with the team through GitHub issues.
  • 当用户与web应用程序交互时，开发保留登录功能.
Technologies: Windows Subsystem for Linux (WSL), Node.js, Auth0, JSON Web Tokens (JWT), GitHub, JavaScript, Vue, MongoDB, NPM

WordPress Developer

2021 - 2021
Freelance Client
  • 与项目业主和设计师协调，使用Asana整合项目范围和时间表.
  • 使用Bootstrap和Vue根据设计规范创建像素完美的响应式web应用程序.
  • 使用高级自定义字段和自定义帖子类型开发WordPress管理流程.
  • Improved site performance to be 70+ for PageSpeed Insights.
Technologies: JavaScript, CSS, HTML, WordPress, Vue, Advanced Custom Fields (ACF), PHP, Bootstrap, Asana

Senior Software Engineer

2018 - 2021
City and County of Denver
  • Researched new technology and how it could be integrated, including Azure TTS, a Cisco phone system call tree, Twilio, Mailchimp, state systems, and Microsoft Power Automate API.
  • Built technical designs for the development team, including a client portal, a deployment tool, an aggregate log, and a mass messenger.
  • Created an architectural vision for our technology stack that covered tokens, queues, Pub/Sub, system agnostic locks, API wrappers, and object-oriented patterns.
  • Mentored two interns for a CronJob migration from SQL Server procedures to C#.
  • Oversaw the project to convert Oracle to SQL server, coordinating between our team and the project manager.
  • 开发了一个内部自定义应用程序，使用Visual Basic和c#编写，每天有600名员工使用.
  • 与项目经理讨论产品设计，并为windows应用程序的内部开发团队分解任务, web apps, internal tools, and long-running services.
  • Assisted in developing a C# web app used by internal and external teams. The front end combined ASP.NET, vanilla JavaScript, and Vue 2.
Technologies: Git, Windows, Visual Studio, Visual Studio Code (VS Code), C#, .NET, ASP.NET, IIS, SQL Server 2017, Oracle SQL, JavaScript, Vue, Windows PowerShell, Azure, Architecture, Design, Pub/Sub, APIs, C#.NET, ASP.NET MVC, ASP.NET Core, Agile Project Management, Project Design & 管理，Web项目管理，Vanilla JS，前端，Microsoft Excel, SQL, Full-stack, SignalR

Senior Web Developer

2014 - 2018
HospitalityPulse
  • 创建了几个基于web的单页应用程序(SPA)，使用PHP和Angular编写，通过JSON格式的HTTP api进行通信.
  • Acted as a product owner of five applications, all of which were 90% unit tested.
  • 使用管道和过滤器模式(PHP)的组合设计并实现了洞察体系结构, Blackboard, and OOP.
  • 建立了具有IE8最低要求的PulseLink:它是由前台使用的，需要快速加载和快速使用.
  • 将RoomPulse重建为AngularJS单页应用程序:它具有IE9的最低要求，并作为后台实用程序使用.
  • Designed multiple reusable Angular components, including typeahead, dropdown, list multi-selection, and modal.
  • Developed an open-Source script to watch GitHub repositories for version changes.
  • Created a UI by bootstrapping JavaScript to accelerate ATF loading.
Technologies: Kubuntu Linux, VirtualBox, Git, Apache, NetBeans, Visual Studio Code (VS Code), NPM, Bower, Grunt, TypeScript, JavaScript, Angular, HTML, CSS, PHP, MySQL, Object-oriented Programming (OOP), Grunt Command Line Interface (CLI), ParcelJS, Web Project Management, Vanilla JS, Front-end, APIs, Ubuntu, SQL, Full-stack

Full-stack Web Developer

2011 - 2014
Nor1
  • Redeveloped our guest-facing upsell solution by utilizing Node.js and AngularJS which decreased page load size by 50%.
  • Educated coworkers on technologies including Node.js, AngularJS, Canvas, and Google App scripts through presentations showing the pros and cons and usage.
  • 与营销副总裁一起介绍了2013年Tnooz THack的api发布.
  • Created an Android application that utilized internal API calls; my focus was on usability and performance.
  • 通过支持延迟加载关键字增强了我们的内部化系统，提高了管理员的效率.
  • Worked closely with the UX designer to implement a mobile design.
  • 在协作式Scrum环境中使用CakePHP编写了一个基于管理服务的web应用程序.
Technologies: Jira, MacOS, Git, Subversion (SVN), Apache, NetBeans, Eclipse, Android Studio, Genymotion, PHP, CakePHP, Node.js, JavaScript, jQuery, Angular, HTML, CSS, MySQL, Agile Project Management, Web Project Management, Vanilla JS, Front-end, Ubuntu, SQL, Full-stack

Web Developer

2007 - 2011
HPN WorldWide
  • 改革了汇总报表系统，将脚本运行时间从10分钟减少到2分钟.
  • 优化了网页可打印的16页HPA报告，使其向后兼容IE6.
  • 开发了一个实用程序来导入数千个独特的筛选集合-每周节省几个小时.
  • Created several tracking systems to implement client-specific requests.
Technologies: PHP, Symphony, FileMaker, HTML, CSS, MacOS, Git, Apache, Eclipse, Doctrine, JavaScript, MySQL, Front-end, Vanilla JS, SQL, Full-stack

CAD Handwheel Generator

这是一个海军挑战项目:海军舰艇携带额外的手轮成本太高, and each naval craft may have many different-sized handwheels.

As an alternative solution, vehicles will have a computer and a 3D printer. 操作员可以输入手轮尺寸并输出程序生成的CAD文件进行3D打印，以替换任何损坏的手轮.

Conference Attendance Web App

A Node.基于js的CMS，允许用户注册有趣的演讲并通过PayPal支付. Added administrative functionality to organize attendees, batch email attendee assignments, and export attendance as CSV. The web application is re-run by the client yearly.

EE Lessons

授权教育(EE)是一个非营利组织，为教育工作者提供正念内容，让他们把这些内容带到课堂上. 用户将登录到在线服务访问课程，下载内容，并查看使用示例.

这个项目选择的解决方案是在WordPress中构建一个自定义的帖子类型，并集成已有的功能. This allows the EE editors to manage the lessons entirely by themselves. Including managing content, the template, additional data, and user access.

This project allowed me to work with WordPress and extend its feature base. I was able to create a custom post type. I integrated with advanced custom fields to build the form. EE已经选择Divi作为他们的模板引擎，我可以创建一个自定义模板. Lastly, they use Memberful for user role access. 通过利用现有的每个集成，EE可以自己管理这个特性.

WordPress Page Speed Optimization

http://candleinc.org
Candle Inc. was looking to improve its Core Web Vitals to support better SEO. With only access to WordPress, I configured several plugins to speed up the site. As a result, the company's Core Web Vitals went from 25 to 65.

Power Automate Flow for Non-technical Users

The project served as a business process intermediary and proof-of-concept. We used Microsoft Forms as a front end, Microsoft Excel as a database, Power Automate as a business layer, and Power BI as an administrative tool. 内部用户可以在Power BI系统中查找客户端，并在Microsoft Forms中输入唯一的ID以允许更新. Several Power Automate flows were built from Microsoft Form triggers. One Microsoft Form was a 100+ questionnaire. 所选择的Power automation设计对于非技术用户来说易于维护. For example, 条件分支的深度永远不会超过一层——来自块编辑器的管理将是复杂的.

Automation of Accounting Needs for a Freelancer

The client required an API connection between Harvest time tracking and Wave. The requirement was to copy over invoicing data. I researched and found MakeHQ that would support their needs within their budget. 使用MakeHQ，我创建了一个自动化的无代码API web流，他们可以在必要时进行管理.

Languages

C#, JavaScript, PHP, SQL, C#.NET, Java, HTML, CSS, Flash ActionScript, C++, Assembly, Python, TypeScript, Sass

Frameworks

.NET, CakePHP, Angular, ASP.NET, Windows PowerShell, Vanilla JS, ASP.NET MVC, ASP.NET Core, Windows Presentation Foundation (WPF), .NET Core, Divi, Bootstrap, JSON Web Tokens (JWT), React Native, Express.js

Storage

MySQL, SQL Server 2017, Oracle SQL, MongoDB, MariaDB, Amazon S3 (AWS S3)， Amazon DynamoDB

Other

Full-stack, Operating Systems, Data Structures, IIS, Architecture, Design, Front-end, APIs, Web Project Management, Algorithms, Networking, Symphony, Pub/Sub, ParcelJS, Project Design & Management, Windows Subsystem for Linux (WSL), Amazon RDS, Metabase, Google, Wave, Harvest, Google BigQuery

Libraries/APIs

Vue, Node.js, jQuery, Doctrine, PayPal API, React, SendBird, SignalR

Tools

Git, Apache, Visual Studio, Grunt Command Line Interface (CLI), Asana, FreeCAD, FileMaker, Jira, Subversion (SVN), Android Studio, Genymotion, VirtualBox, NPM, Bower, Grunt, Advanced Custom Fields (ACF), Microsoft Power BI, Microsoft Excel, Webpack, Auth0, GitHub, Amazon Simple Email Service (SES), AWS IAM, AWS CLI, AWS Fargate, Papertrail, Mailchimp, Slack, Amazon CloudFront CDN, Babel, Looker, SendGrid, Google Sheets, Google Forms, Zapier, Make, Notion, Firebase Cloud Messaging (FCM)

Paradigms

Agile Project Management, Object-oriented Programming (OOP), Automation

Platforms

Windows, Ubuntu, MacOS, NetBeans, Visual Studio Code (VS Code), Azure, Eclipse, Kubuntu Linux, KeystoneJS, WordPress, Microsoft Power Automate, Amazon Web Services (AWS), AWS Elastic Beanstalk, AWS Cloud Computing Services, Firebase, Docker

2007 - 2011

Bachelor's Degree in Computer Science

Elmhurst College - Elmhurst, IL, United States

AUGUST 2021 - AUGUST 2025

AWS Certified Developer - Associate

Amazon Web Services

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