Skill & Experience

Skill & Experience

About Kastelo

We provide consultancy services in specific service areas, delivered by only the most skilled & experienced consultants. Our customers range from independent software studios to international telecommunications companies and retail chains. We have our roots in the Open Source movement and believe in contributing back to the community. Kastelo is a corporate sponsor and steward of the Syncthing project.


Products & Services


Arigi is a tool for managing Syncthing instances in bulk. Arigi lets you eliminate repetitive manual work, reduce the time to deployment, and increase consistency and efficiency.

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Syncthing Enterprise Support

First class support and maintenance on your Syncthing deployment. We offer choices of coverage and SLA levels to be cost effective at any size.

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We also offer a wide spectrum of general consultancy services.

Software Development

Software architecture, development and auditing with a laser focus on security and clarity. Specialities include networking and distributed systems.

Bash, C, C++, Docker, FreeBSD, Full Stack, Go, Javascript, Linux, MySQL, Node.js, PostgreSQL, Python, Ruby, Solaris

Development Process

Team coaching, introduction to lean and agile methods and Kanban. We set up and teach continuous integration, continuous delivery and modern code review workflows.

Agile, CD, CI, Confluence, Git, GitHub, Jenkins, Jira, Kanban, Phabricator, Scrum, Subversion, TeamCity

Networking & Infrastructure

Design and implementation services in carrier or enterprise networks. Our expertise is focused on secure and highly available networks and server infrastructure.

BGP, Cisco, DNS, Ethernet, Firewalls, High Availability, IS-IS, Juniper, Monitoring, OSPF, Procera, Routing, SNMP, Storage, Switching, Vertica, ZFS

A modern consulting firm with a focus on providing the most skilled and experienced consultants in their area

We're based in Malmö, Sweden — probably the best place to be in the Nordics.

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