BI Architecture Design
Scalable, cloud-native BI architectures built for performance, maintainability, and growth. From data ingestion to semantic layer design.
MS FabricAzure SynapseAWS RedshiftData Lakehouse
BI Architect & Cloud Analytics Consultant
Turning complex data
into decisions
I design scalable, cloud-native BI architectures for financial institutions and enterprise clients. 18+ years. Millions of data points. Measurable outcomes.
About
Senior BI Architect.
Milestone BI.
I'm Omar Williams — a BI Architect with over 18 years of experience designing and delivering enterprise-grade analytics across banking, financial services, gaming, logistics, and manufacturing.
Through Milestone BI, I partner with organisations to build the data infrastructure that powers confident executive decision-making: cloud-native architectures, automated reporting pipelines, governance frameworks, and Power BI solutions that actually get used.
I've worked with household names including L'Oréal, Rolls-Royce, Weatherbys Private Bank, IFS, British Business Bank, and Gazprom M&T — delivering measurable impact at every engagement.
BSc
Computer Science
Kingston University
Kingston University
£M+
Value delivered across engagements
20+
Enterprise clients served
Who I Help
Built for teams who run on data.
If your organisation depends on trustworthy numbers to make decisions, and your current reporting can't keep up — that's where I come in.
Banking & Financial Services
Regulatory reporting, risk & liquidity dashboards, and audit-ready governance built for scrutiny.
Enterprise & ERP
Complex finance and operations estates that need a rationalised, high-performance semantic layer.
Gaming, Logistics & Manufacturing
Cloud-native BI at scale — high-volume data, distributed teams, product-aligned roadmaps.
Executive & C-Suite Teams
Leaders who need a single source of truth they can trust in the room, not just on paper.
Services
What I deliver
End-to-end BI architecture and analytics consulting, from strategy through to production deployment.
Power BI Solutions
Executive-grade Power BI dashboards that drive adoption. Data modelling, DAX optimisation, governance frameworks, and user enablement.
Power BIDAXPower QueryRow-Level Security
Data Governance
Governance frameworks, access controls, data quality standards, and audit compliance — built to meet regulatory requirements and internal policy.
Data GovernanceComplianceData QualityAccess Control
Reporting Automation
Replace manual Excel workflows with automated, auditable reporting pipelines. Regulatory returns, financial reporting, HR analytics — done right.
ETL / ELTSSISPythonSQL
Agile BI Delivery
Scrum Master-led BI delivery with structured backlogs, sprint planning, UAT management, and full release governance. Consistent, on-time outcomes.
Agile / ScrumAzure DevOpsJiraStakeholder Mgmt
Analytics Enablement
Training, data literacy programmes, and change management to ensure your teams actually use the analytics you've invested in.
TrainingChange ManagementData LiteracyAdoption
Case Studies
Delivered impact
A selection of client engagements with measured outcomes.
Designed and delivered a full enterprise BI architecture spanning 5 HR systems. Built 20 automated dashboards covering attrition, absence, talent, L&D, and director reporting — with zero manual intervention required at run-time.
90%Reduction in manual effort
40%Increase in analytical efficiency
100%Audit compliance
Power BIMS FabricSQLData Governance
Automated core regulatory returns using Power BI, replacing manual processes. Architected the CFO data infrastructure enabling real-time risk, capital, and liquidity dashboards.
95%Reduction in manual effort
95%First-time UAT pass rate
Power BIDAXSQLAgile
Optimised and restructured IFS's entire finance BI estate — data architecture, semantic model performance, and exec-level Power BI dashboards. Delivered cross-functional data literacy training that drove lasting adoption.
20%Increase in data retrieval speed
30%Lift in analytics adoption
Power BIAzureSQLScrum
Led the end-to-end AWS cloud BI architecture rollout. Defined data models and engineering standards while managing a team of 10 engineers. Partnered with executives to align the BI roadmap with product strategy.
10Engineers led
AWSCloud-native architecture
AWS RedshiftPythonPower BIERP
Built enterprise-grade Power BI models delivering a 50% boost in report performance and data reliability. Led the Power BI governance rollout across the organisation, dramatically reducing access issues and improving analyst self-sufficiency.
50%Boost in report performance
80%Increase in Power BI adoption
Power BIDAXGovernanceTraining
Technical Skills
The toolkit
BI & Visualisation
- MS Power BI
- MS Fabric
- Tableau
- Qlik
Data & Cloud
- SQL Server
- Azure Synapse
- AWS Redshift
- Python
Architecture & Process
- BI Architecture
- Data Governance
- Agile / Scrum
- Stakeholder Mgmt
MCSA: SQL Server 2012
CISCO CCNA
PMI Agile Practitioner
BSc Computer Science — Kingston University
Testimonials
What clients say
“Omar transformed our HR reporting landscape. What used to take days of manual effort now runs automatically. His governance framework has set us up for the next decade.”
“The Power BI dashboards Omar built gave our CFO real-time visibility into risk and liquidity positions for the first time. Exceptional delivery and technical depth.”
“Omar brought rigour and clarity to a complex data migration at IFS. His ability to manage stakeholders while delivering technically is rare. I'd work with him again without hesitation.”
* Testimonials are representative of client feedback. Names withheld for confidentiality.
Contact
Let's build something
that matters
If you're looking for a senior BI Architect to design, deliver, or transform your analytics capability — let's talk.
Get in touch