Backend & integrations
Services and APIs, systems integration and event-driven solutions. Building new software and working with the systems you already have.
Java, Kotlin, Spring Boot, Kafka, PostgreSQL
Backend and cloud,
from architecture to production.
Trefjorton is an independent software development and architecture consultancy. Modern Java and Kotlin, Spring Boot, Kubernetes and Terraform, with AI-assisted development as a natural part of the work.
Supporting an existing team or taking responsibility for a defined part of the development. Code that goes all the way to production.
Services
Architecture & cloud platforms
Technical decisions that work in practice. Experience modernising systems, moving services to the cloud and bringing development and operations together.
AWS, Azure, Google Cloud (GCP), Kubernetes, Terraform
Assignments
Behind Trefjorton is over 20 years of development in payments, gaming, telecom and the public sector. Assignments include:
SJ
Current assignment, backend services on Azure
PayPal / Zettle
Payment services and integrations
Kambi
Real-time services and cloud migration
NetEnt
Backend development and technical leadership
Own products
Alongside consulting, Trefjorton builds its own services. It is also where new technology and ways of working are tried first.
Bussradar
Closed beta, login required
Finds the nearest stop, lists departures and shows the buses on the map as they approach. Built for SL’s buses in Stockholm, with real-time data from SL and Trafiklab.
Spring Boot, React, Cloud Run, Cloudflare
bussradar.sePrisapan
Coming
Get money back on things you’ve bought.
Spring Boot, React, Cloud Run, Cloud SQL
Let’s talk about your next project.
Get in touch about consulting, collaboration or an initial conversation about what you need.