Architecture + decisions

Evidence behind the outcome.

Five project deep dives, with the decisions, architecture, and measured results behind each one.

DataGuard compares source and reporting data to find discrepancies

Data Engineering · Reliability

Completed case study

DataGuard

Reconciles a simulated core-banking source against a reporting replica. Partition checks narrow the work before row hashing; labeled fault tests reached 100% precision and recall, and the 1M-row run was 6.4× faster than a naive SQL EXCEPT baseline.

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ACAS multimodal credibility assessment research project

AI / ML · Academic group research

Completed case study

ACAS

A four-agent social-media credibility research pipeline. Lahiru's contribution covered privacy masking, orchestration, routing, audit records, and API integration; teammates developed the classification and similarity models.

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Uber Eats Sri Lanka analytics dashboard project cover

Data Analytics / BI · Machine learning

Completed case study

Uber Eats Sri Lanka Analytics

A five-page marketplace dashboard over 70,000+ simulated orders, exploring restaurant operations, price elasticity, and Random Forest churn-risk signals.

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RevenueLift checkout experiment analytics project cover

Data Analytics / BI · Experimentation

Completed case study

RevenueLift

Analysis of a simulated checkout A/B test, including power analysis, significance testing, multiple-testing correction, and a Power BI decision report.

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Data Engineering · In progress

Engineering progress

F1 Data Pipeline

An OpenF1-fed streaming architecture with Kafka, PostgreSQL, Spark and Cassandra. Explore the two storage patterns, memory constraints and work remaining on orchestration.

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