About me

(Mainly) backend developer with 5 years experience designing and building e-Commerce and other customer-facing systems.

Proactive self-starter with a strong sense of ownership, frequently leading early exploration of new projects and features.

Experience
Software Engineer
Freelancer
TypeScript
Deno
AI
PostgreSQL
Supabase
Kiel, Germany
2026 - present
  • Backend (Supabase & Deno) and frontend (NextJS) development on efficiency apps for small businesses
Software Engineer
Impulz Digital Pte. Ltd.
e-Commerce
Python
FastAPI
Java
Spring
TypeScript
PostgreSQL
Elasticsearch
MongoDB
Supabase
RabbitMQ
Kubernetes
Singapore
2021 - 2026
  • Led backend development of a new e-commerce system based on Python/FastAPI microservices, significantly increasing business self-service capabilities and achieving high customer satisfaction.
  • Developed shop directory backend built on Java/Spring microservices, PostgreSQL and Elasticsearch.
  • Maintained and continuously extended e-commerce backend based on Java/Spring, TypeScript/NestJS, and MongoDB.
  • Designed reliable, scalable event-driven architectures using RabbitMQ and Azure Service Bus to coordinate asynchronous workflows across distributed services.
  • Built microservices across multiple stacks, including Python (FastAPI), TypeScript (NestJS, Deno) and Java (Spring), collaborating effectively with engineers working in different ecosystems.
  • Optimized performance of customer-facing flows through profiling, architectural improvements, and targeted refactoring.
  • Architected complex third-party integrations in close collaboration with client business stakeholders and external service providers.
  • LLM integration into a receipt scanning app, via Supabase backend, including prompt design to improve accuracy and reliability of data extraction.
  • Created reliable deployment pipelines using Gitlab CI and Kubernetes.
  • Mentored and onboarded new engineers across a mostly remote team spanning Europe and Asia.
Software & IoT Engineer
Freelancer
Electronics
IoT
ESP32
C++
Firebase
iOS
SwiftUI
Singapore
2020 - 2021
  • Developed IoT electronics, firmware, and web interface
  • Developed iOS frontend application (SwiftUI)
Safety & Reliability Engineer
Airbus Defence and Space GmbH
Aerospace
Bremen, Germany
2017 - 2018
  • Safety & reliability engineering for spacecraft
Safety & Reliability Engineer
ZAL GmbH
Aerospace
Hamburg, Germany
2011 - 2017
  • Safety & reliability engineering for aircraft fuel cell systems
Tech Stack
Programming Languages
Python
TypeScript
Java
Kotlin
Backend Frameworks
FastAPI
Spring
NestJS
Ktor
Frontend Frameworks
Svelte
TailwindCSS
MapLibre
Bootstrap
Data Science
DBT
Jupyter
Superset
Cloud Platforms
AWS
Azure
GoogleCloud
Supabase
Firebase
Cloudflare
Databases
PostgreSQL
Elasticsearch
Algolia
MongoDB
Development Tools
Git
GitHub
GitLab
Bitbucket
VSCode
IntelliJ
Cursor
Windsurf
Linux
Docker
Kubernetes
Postman
Bruno
Nginx
RabbitMQ
Deno
GraphQL
Swagger