Samuel Tettey-Nartey
Backend and distributed systems engineer
MSc Software Engineering at unibz · Bolzano, Italy
# about
Hey, I’m Sam. I’m a backend engineer who likes the hard, quiet parts of a system: how data moves, where it breaks, and what keeps it running when something goes wrong.
I went to high school in Accra, did my bachelor’s in Chengdu, and I’m now finishing a master’s in Bolzano. Somewhere along the way I got hooked on distributed systems and never really looked back. These days I work mostly in Go and C++ when it needs to be fast, and Python or TypeScript for everything around it.
I care about code that holds up in production, not just in a demo. When I’m not building, I’m usually reading about how other people built theirs.
# work
- Software Engineer
Fruit-Service GmbH, Bolzano, Italy
Built data-extraction and entity-resolution pipelines in Python (PostgreSQL, pgvector, Azure OpenAI vision) deployed on Azure Container Apps Jobs across 41 EU retail markets. Designed the bronze/silver ingestion flow: structured data extracted from leaflet PDFs, then validated and normalized into PostgreSQL. Built the internal React and TypeScript control panel for tracking extraction runs, with a custom PDF viewer and per-document status views. Secured the APIs with Keycloak; CI/CD through GitHub Actions.
- Backend Engineer (part-time)
NOI Techpark, Open Data Hub, Bolzano, Italy
Rewrote legacy Java Spring Boot data collectors as Go services, cutting memory usage and simplifying deployment. Maintained and extended core Open Data Hub APIs delivering regional mobility and tourism data to third-party consumers.
- Backend Engineer Intern
NOI Techpark, Open Data Hub, Bolzano, Italy
Supported third-party integrators building on the Open Data Hub APIs. Contributed fixes to the OpenTripPlanner and IMPACT open-source repositories, and automated repository classification across the organization’s open-source codebase.
- IT Technician Intern
Ghana Armed Forces, Accra, Ghana
Maintained networks, hardware, and end-user systems in a security-sensitive military environment.
# projects
Tolerant
MSc Thesis: Analyzing performance and energy consequences of circuit breakers.
Python · Locust · Docker
FORGE
An LSM-tree storage engine built from scratch.
C++20 · CMake · Linux
Scorepact
A deterministic football predictions app.
Python · FastAPI · React · PostgreSQL
CONDUCTOR
A distributed workflow orchestration over Redis Streams
Python · Redis Streams
Metron
A household ledger app for tracking spending.
Python · FastAPI · PostgreSQL · React Native
Skill Link
A platform for connecting with mentors and like-skilled peers.
Go · Gin · PostgreSQL · Docker
# education
- Free University of Bozen-Bolzano
MSc Software Engineering, Bolzano, Italy
- Southwest Petroleum University
BSc Computer Science and Technology, Chengdu, China
- Achimota Senior High School
General Science, Accra, Ghana
# tools
- Apache Kafka
- CMake
- C++
- Docker
- FastAPI
- GitHub Actions
- Go
- Grafana
- gRPC
- Keycloak
- Kubernetes
- Linux
- Azure
- MongoDB
- Node.js
- Java
- Playwright
- PostgreSQL
- Prometheus
- Python
- React
- Redis
- Spring Boot
- Tailwind CSS
- Terraform
- TypeScript