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Stephan.

2025Experience

ISMO BioPhotonics logo

Software Engineer Intern

ISMO BioPhotonics

Led full-stack development of two production systems for clinical environments, focusing on real-time validation, environmental monitoring, and scalable architecture.

Company
ISMO BioPhotonics
Type
Full-Stack
Duration
6+ months
Location
Remote

01Impact

By the numbers.

2

Production Systems

50+

Active Facilities

99.9%

Uptime

5000+

Daily Users

02Responsibilities

What I owned.

01

Designed and implemented production-grade mobile applications using Flutter

02

Built web dashboards with Next.js for real-time monitoring and analytics

03

Developed RESTful APIs with FastAPI and Django for backend services

04

Implemented event-driven architecture with Firebase streams

05

Created layered architecture with clean separation of concerns

06

Integrated hardware devices (RFID/QR scanners) with mobile applications

07

Built role-based access control across multiple branches

08

Deployed and maintained production systems with 99.9% uptime

03Projects

What I shipped.

Healthcare Workflow System

Production witness and tracking system for clinical workflows

  • Shipped MVP to production market with 5000+ daily validations
  • Built QR/RFID integration with real-time validation
  • Implemented event-driven architecture for <2s response time
  • Achieved 99.9% uptime with comprehensive error handling
  • Designed role-based access control for multi-branch operations
  • Flutter
  • Firebase
  • Next.js
  • FastAPI
  • PostgreSQL

Lab Monitoring System

Environmental monitoring platform for clinical laboratories

  • Built background monitoring compatible with Android 14/15
  • Implemented real-time alerts with <30s latency
  • Created historical visualization with interactive charts
  • Developed PDF report generation for compliance
  • Deployed to 50+ laboratories with 24/7 monitoring
  • Flutter
  • Firebase
  • Provider
  • WorkManager
  • PDF Generation

04Engineering

Technical depth.

Architecture

  • Designed layered architecture with event-driven streams
  • Implemented clean separation between UI, business logic, and data
  • Built scalable backend with microservices pattern
  • Created reusable component library for consistent UI

Performance

  • Achieved <2s response time for real-time validation
  • Optimized app size and startup time for mobile apps
  • Implemented efficient data synchronization strategies
  • Built caching layer for improved performance

Quality

  • Maintained 99.9% uptime in production
  • Implemented comprehensive error handling and logging
  • Built automated testing suite for critical features
  • Ensured HIPAA compliance for healthcare data

05Stack

Tools used.

mobile

  • Flutter
  • Dart
  • Provider
  • BLoC Pattern
  • WorkManager

web

  • Next.js
  • React
  • TailwindCSS
  • TypeScript

backend

  • FastAPI
  • Django
  • PostgreSQL
  • Redis

infrastructure

  • Firebase
  • Cloud Functions
  • Real-time Database
  • Authentication

tools

  • Git
  • VS Code
  • Postman
  • Firebase Console

Key learnings

  • Production deployment and maintenance of mobile/web applications
  • Event-driven architecture and real-time data synchronization
  • Clean architecture patterns and separation of concerns
  • Healthcare compliance and data security best practices
  • Cross-platform development with Flutter
  • API design and backend development with Python
  • Hardware integration with mobile applications