Enterprise Open Source Infrastructure... Without the Lock-In or Hidden Costs
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.
Services
6 Disciplines One Service Layer
Each service is a module of the same precision machine, engineered to interlock, calibrated to your mission.
Consultancy
Strategic guidance for open-source architecture decisions. We assess, design, and roadmap infrastructure that aligns with your mission.
- Architecture review
- Technology selection
- Migration planning
- Feature Implementation
Support
Sirius provides comprehensive 24/7/365 Open Source support, ensuring your critical systems remain operational, secure, and perform at their peak, around the clock.
- 24/7 response
- SLA-backed
- Patch management
- Root-cause analysis
Deployment
Precision deployment of open-source solutions into production. Engineered for scale, security, and long-term maintainability.
- Automated provisioning
- Security hardening
Managed Service
Fully managed open-source infrastructure. We operate your systems so your team can focus on the mission, not the machinery.
- Monitoring & alerting
- Backup & recovery
- Capacity planning
- Continuous optimisation
Outsourcing
Dedicated open-source engineering teams embedded in your workflow. Specialised talent without the overhead of permanent recruitment.
- Dedicated engineers
- Agile delivery
- Flexible scaling
- Clear governance
Training
Bespoke training programmes that transfer deep operational knowledge. Your team gains the expertise to own and evolve the systems.
- Knowledge transfer
The Manifesto
Freedom from lock-in. Zero licensing cost. Built by experts worldwide.
Open source is not a trend — it is an engineering philosophy. Developed by experts across the globe, it rivals and often surpasses proprietary software in resilience, security, and precision.
We help clients progressively realise these benefits, achieving their mission through systems they own completely.
Solutions Architecture
What do you need?
Six solution domains covering the full spectrum of enterprise open-source infrastructure. Each is a discipline in its own right - together they form a complete operational platform.
Identity Management
Authentication, access control, and identity federation built on proven open-source foundations.
Infrastructure Solutions
Cloud, virtualisation, and container platforms engineered for resilience at scale.
Data Management
Open-source databases and data pipelines — from high-throughput transactional stores to analytics.
Enterprise Search
Powerful, self-hosted search infrastructure that scales with your knowledge base. ElasticSearch, SOLR and Lucene.
Online & Internet
Build and manage a future-proof digital infrastructure that drives engagement, scales dynamically, and prioritizes security, all powered by the flexibility and innovation of open source.
Digital Solutions
Digital transformation through composable, open-source application architecture.
Open Source
Our Expertise Spans Every Critical Area
We're not just experts in a few select technologies; we're your comprehensive partner for all enterprise-class Open Source software. No vendor lock-in, no limited options – just the freedom to choose the best tools for your needs.
Cloud Computing
Cybersecurity
Software Development
Operating System
Database
Networking
Virtualization / Containerization
DevOps & Infrastructure Automation
Identity Management
The Logbook
Proof, not promises
Selected engagements - public/private sector
Cabinet Office Digital Service
Nationwide open-source identity infrastructure serving millions of citizens with zero vendor lock-in.
ABN AMRO Infrastructure
Migrated mission-critical banking systems to managed open-source infrastructure with full compliance.
Gatwick Airport Systems
Real-time enterprise search and data infrastructure keeping one of the world's busiest airports running.
Expert Open Source Guidance · Response Guaranteed Within 1 Business Day
Ready to Modernize, Secure, or Audit Your Open Source Stack?
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...
Speak with a Senior ArchitectSirius Sales
Learn more about Sirius' services or enquiry about your existing accounts.
(509) 254-5005 sales@siriusopensource.com
Sirius Technical Support
24/7/365 Open Source support. We have your back.
(509) 254-5007 support@siriusopensource.com
Office Address
PO Box 48555, Spokane WA 99208-9998, USA
Pacific Standard Time. Office Hours: Monday to Friday, 9am to 5:30pm