Software Developer

Hans Voll

Building high-performance, low-maintenance systems with a focus on scalability and user experience.

About Me

Crafting Digital Experiences

Results-driven Full Stack Developer with a passion for building scalable, maintainable, and efficient software systems. Adept at translating complex requirements into technical solutions. Leverages comprehensive skill set that spans front-end and back-end development. Skilled in collaborating across teams and delivering high-quality code that aligns with both business goals and technical excellence

Full Stack

Crafting end-to-end solutions with modern frameworks and best practices, from database architecture to responsive user interfaces.

Backend

Building robust server-side systems with C# and Python, implementing scalable APIs and efficient data processing pipelines.

Frontend

Creating intuitive and responsive user interfaces using React and Angular, focusing on performance and user experience.

Experience

Professional Journey

My career path in software development and engineering

Software Developer

Mar 2022 - Present

MRS BPO

  • Developed backend systems to handle business-critical logic, ensuring accuracy and scalability for financial operations across multiple departments.
  • Designed and implemented cloud-based architectures using AWS services like Lambda, S3, Aurora, and EC2, optimizing data storage and workflows.
  • Created ETL pipelines in C# to process high-volume financial datasets, reducing data latency and improving reporting accuracy across business units.
  • Maintained and extended reusable code libraries, standardizing solutions and promoting efficient development practices aligned with team standards.
  • Built responsive front-end applications with Angular, delivering user-friendly interfaces and supporting operational efficiency.

Full Stack Developer

Feb 2021 - Mar 2022

CDYNE Corp.

  • Designed, developed, and maintained software applications using C# and ASP.Net. Worked in full stack capacity on both front end websites and back end applications
  • Created single-page applications in Blazor and Angular. Incorporated Entity Framework on both code- first and database-first projects. Reverse engineered existing databases to generate data models in .Net, and used LINQ to SQL to communicate with database.
  • Created and maintained databases using Microsoft SQL Server. Designed tables, wrote stored procedures, created user defined types, and utilized data views.
  • Built and consumed RESTful web APIs using HTTP methods. Utilized Swagger for automated documentation and Postman for testing endpoints.
  • Collaborated with team on development projects using Azure DevOps. Incorporated Git source control, work tracking, and continuous integration and delivery. Generated pull requests, completed work items, and created new features.
  • Used Identity Server to provide single-sign-on functionality across multiple software products. Used JWT Authentication with web tokens, claims, and schemes to verify access.

Geophysicist

May 2017 - Jan 2021

NAEVA Geophysics Inc.

  • Automated ETL workflows with Python scripts enabling seamless flow across data sources.
  • Designed and developed a Xamarin mobile app with local data storage functionality in SQLite.
Skills

Technical Expertise

A comprehensive toolkit of technologies and methodologies

Frontend
React
Angular
Flutter
HTML/CSS
JavaScript
TypeScript
Backend
C#
Python
Java
ASP.NET
REST APIs
Microservices
Database
SQL Server
PostgreSQL
MySQL
SQLite
Database Design
Stored Procedures
DevOps & Cloud
Azure
AWS
CI/CD
Git
Agile
Identity Platform

Published Apps

Mobile Applications

Cross-platform mobile applications built with Flutter and published on the App Store and Google Play Store.

Scorecard
Scorecard screenshot

I developed Scorecard based on the idea of a clean intuitive interface for keeping score for any type of game.

Flutter
Dart
SQLite
MVVM
WeatherView
WeatherView screenshot

I've always liked the detailed forecasts of the National Weather Service, but could never find an app that integrated it with a clean UX. So I built my own.

Flutter
Dart
REST API
Projects

Featured Work

Showcasing some of my most impactful projects and solutions

Financial Data Processing System

Developed a high-performance ETL pipeline for processing financial datasets, reducing data latency by 40%.

C#
AWS
ETL
Financial Services

Identity Management Platform

Built a single sign-on solution with JWT authentication for multiple software products.

Identity Server
JWT
Azure
Security

Responsive Angular Dashboard

Created a user-friendly interface for operational efficiency with real-time data visualization.

Angular
TypeScript
UI/UX
Data Visualization

Mobile Data Collection App

Designed and developed a Xamarin mobile app with local SQLite storage for field data collection.

Xamarin
SQLite
Mobile
C#
Education

Academic Background

Educational qualifications that have shaped my professional journey

Economics (BA)

Metropolitan State University of Denver

GraduationMay 2011
GPA3.8

Geology (BS)

Radford University

GraduationMay 2017
GPA3.6
Contact

Get In Touch

Let's connect and discuss how I can contribute to your team

Phone

(719) 429-1997

Feel free to call during business hours

Email

hvoll44@gmail.com

Shoot me an email anytime