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Hey! I'm Charles

I'm a full stack software developer with demonstrated expertise in both front-end and back-end development. Passionate about building efficient and scalable applications.

Work Experience

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Trude

Full Stack Developer

  • Led end-to-end software development at a startup, owning frontend, backend, DevOps, AI, and infrastructure to deliver full-stack solutions independently.
  • Built and maintained full-stack applications using Python FastAPI, PostgreSQL, and React, deploying and scaling services on AWS.
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Inkwell

Full Stack Developer

  • Developed an e-learning mobile app, using ChatGPT, to generate lessons and interactive quizzes tailored to a user’s interests and learning pace.
  • Actively contribute to all stages of the development lifecycle, from initial architecture design to deployment, focusing on scalability, security, and user experience.
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Apple

Frontend Developer

  • Designed and developed internal security tools using React and FastAPI, utilizing AWS S3 and SQS.
  • Worked closely with cross-functional teams to develop end-to-end solutions capable of processing high volumes of data.
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Nucleus Healthcare

Frontend Developer

  • Developed sequential test scheduling and compliance management program for companies, schools, events, and long-term care facilities, built with React and React Native.
  • Lead developer for Shoutout: Online Therapy & Addiction Treatment, built with React Native.
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Svadhi

Full Stack Development Intern

  • Engineered data visualization dashboard for college admissions profiling using Express, React, and D3.
  • Worked collaboratively, leading front-end team.
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Pennsylvania DOT

Research Fellowship

  • Developed crowdsensing mobile app for pavement monitoring using mobile camera and accelerometer in Java.
  • Prototyped Python cryptocurrency for distributed computer vision processing and crowdsensing incentive mechanism.
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Teaching Assistant

Software Engineering

  • Mentored over 80 students on app development projects written in Java, JavaScript, and SQL.
  • Redesigned course curriculum to integrate software design patterns; recorded instructional videos.
  • Held office hours to assist students in solving technical and conceptual issues.
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EY

Cybersecurity Intern

  • Wrote Linux shell scripts for security analysis of mobile apps.
  • Designed guides and testing environments for iOS and Android.
  • Developed Python framework for generating security reports for iOS apps.
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Olympus

Capstone Project

  • Built custom software for image and voice recognition on augmented reality glasses for medical use.
  • Full-stack application built with Node.js and Google Cloud Platform backend, and Android/Java frontend.

Education

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M.S in Computer Science

Lehigh University

  • Elizabeth Major Nevius Award
  • Researched mobile crowd-sensing for public works, and LDA for topic modeling related to NLP.
Lehigh University logo

B.S in Computer Science and Business

Lehigh University

  • Dean's List
  • Capstone Project partnered with Olympus Corporation to prototype AR for use in medicine.

Volunteering

Code and Coffee

Code and Coffee

Organizer, Instructor

  • Code and Coffee is a community of developers who meet up to code and drink coffee. Over 9000 members
  • Founded Speaking/Workshop Program, Organized hackathon, Given 20+ talks
Charles Inwald