Sirius Open Source | Open Source Consultancy, Support and Services

We help enterprise IT leaders deploy, scale, and support mission-critical open source software with 24/7 SLA-backed expertise and guaranteed zero licensing fees.
Strategic guidance for open-source architecture decisions. We assess, design, and roadmap infrastructure that aligns with your mission.
Precision deployment of open-source solutions into production. Engineered for scale, security, and long-term maintainability.
Fully managed open-source infrastructure. We operate your systems so your team can focus on the mission, not the machinery.
Dedicated open-source engineering teams embedded in your workflow. Specialised talent without the overhead of permanent recruitment.
Bespoke training programmes that transfer deep operational knowledge. Your team gains the expertise to own and evolve the systems.
Authentication, access control, and identity federation built on proven open-source foundations.
Cloud, virtualisation, and container platforms engineered for resilience at scale.
Open-source databases and data pipelines — from high-throughput transactional stores to analytics.
Powerful, self-hosted search infrastructure that scales with your knowledge base. ElasticSearch, SOLR and Lucene.
Digital transformation through composable, open-source application architecture.
Selected engements - public/private sector
Nationwide open-source identity infrastructure serving millions of citizens with zero vendor lock-in.
Migrated mission-critical banking systems to managed open-source infrastructure with full compliance.
Real-time enterprise search and data infrastructure keeping one of the world's busiest airports running.
Whether you need 24/7 SLA emergency support, a fixed-fee architecture audit, or a complex version migration, our engineering team is here to help...