Barbara Prusiewicz

Gatsby app for non-profit fundraising. I was a senior developer on the pro bono morehumaninternet.org team. Besides general development, my tasks included copy editing and Gatsby image optimization. The morehumaninternet.org remote team is focused on helping non-profits use technology to meet their goals.

Lead developer for an orthodontic/dental CRM allowing practices to track potential patients. I joined the project as the first developer taking over an initial proof-of-concept app. Working closely with a UI designer and domain expert, I designed and implemented features to bring the app to MVP and into MMP. I defined scalable processes for onboarding new clients and ensured HIPAA compliance.
Technology stack is React (with Material UI) using AWS Amplify, Cognito, and AppSync (DyanmoDB and GraphQL).

Empiric.io provides a solution for bio-pharmaceutical labs to monitor equipment. Users can configure alerts and notifications, review incidents, and generate reports for FDA compliance. The web app consists of a React front end and a Ruby on Rails administrative back end. A separate Python back end handles the real-time monitoring of lab equipment.

As the lead developer for the web app, I was responsible for implementation and software design decisions related to the React and Rails components. Key aspects of the design and implementation include a RESTful API interface, AWS Simple Notification System (SNS) configuration for notifications (email and SMS), and a responsive user interface.

The project has progressed from the MVP stage to full customer evaluation.

ReadWriteCommunicate is a literacy analytics application enabling stakeholders (students, parents, teachers, administrators) to monitor and analyze a student's literacy level. The literacy level is determined from writing samples using educational standards like the Flesch–Kincaid algorithm.

The ReadWriteCommunicate app consists of a React front end and Python Flask back end. As the primary front-end developer, I was responsible for the front-end design and implementation and defining the API interface with the back-end lead developer. The style for the front end is based on Material-UI. React-vis was used for data visualization (charts). The project was taken from a purely conceptual phase to MVP, which was distributed to a limited set of target users for evaluation.

Tutoria.io is a non-profit organization matching volunteers with immigrants needing assistance with tasks ranging from applying for citizenship to improving English skills.

As a volunteer software developer, I implemented new features and bug fixes for both the React front end and Rails back end. I am currently one of the senior developers responsible for reviewing Git pull requests and handling deployment to staging and production systems (AWS S3 and EC2 using Electronic Beanstalk).

News4u provides users with access to news through different media outlets. It consists of a React front end with a Ruby on Rails administrative back end. The front end handles actual retrieval of news items. The Rails back end keeps track of user preferences like their favorite sources for news. This project was developed as part of the Flatiron full-stack developer bootcamp program. Aside from demonstrating concepts learned in the program, I also used React styled-components for presentation.

Source code available at https://github.com/BarbaraPruz/news4u.

Verifone's Vx Contactless Card Payment app performs contactless card-based transaction (sales, refunds) processing. The app can run on any Verifone Vx product with contactless hardware. As with all payment applications, it requires certification for each type of payment card.
As the lead architect for the project, I was responsible for the overall application and design.

Key aspects of the architecture:
- Minimize re-certification requirements. The app is designed so specific handling requirements for each card type is in a separate contained module.
-Balance the PCI user interface requirements with the needs of specific clients to customize the user experience. This was accomplished by defining a small framework for the transaction user interface. For this project, I also implemented specific requirements of the architecture and managed the international development team.

The Vx product family spans multiple processor types (ARM9, ARM11), different hardware features (color screen, touch, portable battery), and different communications capabilities (dial, Ethernet, GPRS, WiFi).  A key goal for the product family was to allow the same application to run on multiple hardware variants.

As part of the Vx architecture team, I contributed to the delivery of the project at several levels:

-Operating System drivers: Developed console device driver and printer device driver.  
-Network Middleware: Designed system tasks used for managing network communications.  
-Extensive work helping new customer developers understand best practices, so their applications could run on multiple product variants. This included writing tutorials, sample applications, and white papers, as well as on-site mentoring and trouble-shooting. 

As the primary lead developer, I refreshed the Rubicon Finance landing page and general website.

The site uses Next.js with Tailwind CSS for styling. For the 3D animation, the Atropos package is used.

The changes were done from Figma wireframes and included all screen sizes.