VeriSystems Advisory – Data Architecture & MLOps Consulting

Understanding complex domains through reliable data, rigorous measurement, thoughtful testing, and intelligent automation. Partner with VeriSystems for architecture and MLOps.


Partnering Scopes

Enterprise Data & MLOps Engineering

Unified Data Platform, Analytics & MLOps on Azure Databricks

From raw data ingestion to executive dashboards, controlled A/B experimentation, and production MLflow pipelines—we architect, build, test, and support your entire data lifecycle.

Azure Databricks PySpark & Delta Live Tables Databricks SQL MLflow Unity Catalog & ADLS Gen2
01 / Strategy & Blueprint

High-Level Consulting & Solution Architecture

We eliminate fragmented data silos by designing a unified Azure Databricks Lakehouse architecture that aligns data engineering, business intelligence, and machine learning under one governance layer.

Governance & Storage

Medallion Lakehouse Foundation

Structured Bronze, Silver, and Gold Delta tables on ADLS Gen2 secured with Unity Catalog RBAC, PII masking, and automated end-to-end data lineage.

Delta Lake Unity Catalog ADLS Gen2
Processing & Warehousing

Unified Compute & BI Layer

Scalable PySpark distributed processing paired with serverless Photon-accelerated Databricks SQL warehouses for sub-second executive analytics.

PySpark Databricks SQL Photon Engine
Experimentation & ML

Production MLOps & CI/CD/CT

Closed-loop MLflow experiment tracking, statistically validated A/B rollouts, and automated CI/CD/CT model deployments with drift-triggered retraining.

MLflow Registry CI/CD/CT Model Serving
02 / Hands-On Delivery

Core Services & Low-Level Engineering Design (LLD)

Production-grade engineering blueprints tailored to transform raw enterprise data into governed KPIs, validated experiments, and self-service intelligence.

Pillar A • Infrastructure & Ingestion

Setting Up an Enterprise Data Platform

Our Approach: Provision a secure, auto-scaling Azure Databricks environment using Infrastructure-as-Code (Terraform) and Medallion best practices.

Low-Level Design: Modular PySpark ingestion pipelines powered by Auto Loader (cloudFiles), Delta Live Tables (DLT) quality rules, Liquid Clustering, and Z-Ordering for fast query execution.

Terraform IaC Auto Loader Delta Live Tables Liquid Clustering
Pillar B • Strategic Decision Intelligence

Identifying Key Metrics & Strategic Data Analysis

Our Approach: Translate executive business goals into governed, single-source-of-truth KPIs and uncover actionable growth levers from historical data.

Low-Level Design: Semantic Gold star-schemas in Databricks SQL tracking customer lifetime value (LTV), churn propensity, funnel conversion, and unit economics, backed by PySpark cohort and root-cause correlation models.

Gold Star-Schemas Databricks SQL PySpark Cohorts LTV & Churn Modeling
Pillar C • Controlled Experimentation

Running A/B Tests & Analyzing Experiment Results

Our Approach: Validate product changes, pricing strategies, and ML model upgrades through statistically rigorous controlled experiments.

Low-Level Design: Deterministic user/traffic splitting in PySpark, full parameter and metric logging in MLflow, and automated statistical significance pipelines (Welch’s t-test, Bayesian uplift, and Sample Ratio Mismatch checks).

PySpark Splitting MLflow Logging Welch’s t-test / Bayesian SRM Validation
Pillar D • Visual Analytics & Alerting

Creating Dashboards & Visualizing Data

Our Approach: Empower business and engineering teams with real-time, self-service visual reporting directly on top of live Lakehouse tables.

Low-Level Design: Parameterized Databricks SQL queries, materialized views, and interactive AI/BI Dashboards with automated anomaly alerts delivered to Slack, Teams, or email.

AI/BI Dashboards Materialized Views Parameterized SQL Anomaly Alerts
03 & 04 / Reliability & Quality Gates

Dev/Test/Prod Support & End-to-End Testing Solutions

Keep your data pipelines, dashboards, and ML models running reliably across every environment with proactive SLA support and four-layer automated validation.

03 • L2 / L3 Environment & Incident Support

Dev, Test & Production Fixes Support

  • Dev & Sandbox Support: Resolve PySpark wheel/dependency conflicts, configure Unity Catalog permissions, tune Photon cluster policies, and standardize MLflow tracking.
  • QA & Staging Support: Fix DLT schema evolution failures, eliminate PySpark data skew and shuffle bottlenecks, and debug MLflow Model Registry staging webhooks.
  • Production Fixes (L3 / SRE): Rapid root-cause resolution for executor Out-Of-Memory (OOM) crashes, broken upstream API schemas, instant MLflow model rollbacks on drift, and automated Continuous Training (CT) triggers.
OOM & Skew Fixes Schema Evolution Instant MLflow Rollback
04 • Four-Layer Automated QA Framework

End-to-End (E2E) Testing & Quality Assurance

  • Data & Schema Testing: Automated PySpark and DLT expectations verifying null thresholds, primary key uniqueness, and feature distribution drift.
  • SQL Metric Reconciliation: Automated cross-checks reconciling Databricks SQL dashboard KPIs against source ERP/CRM databases.
  • A/B & MLflow Quality Gates: Pre-deployment checks enforcing statistical power, Sample Ratio Mismatch (SRM) integrity, model accuracy thresholds, and slice fairness.
  • Load & Chaos Testing: High-concurrency stress testing across Databricks SQL warehouses and Model Serving endpoints to guarantee SLA latency under peak traffic.
DLT Expectations KPI Reconciliation Stress & Load Testing
Engagement Models

Flexible Consulting, Build & Managed Support Plans

Start with a focused Lakehouse architecture blueprint, commission a full custom build, or retain dedicated L2/L3 SRE engineers.

Phase 01 • Advisory

Architecture & KPI Blueprint

Starting At Fixed Sprint 2-Week Discovery & HLD Delivery

Ideal for teams needing a clear Azure Databricks roadmap, KPI definitions, and FinOps cost optimization plan.

  • Current Data & Cloud Readiness Audit
  • High-Level Lakehouse & Unity Catalog HLD
  • Core Business KPI & Gold Schema Mapping
  • Cluster Sizing & Photon Cost-Reduction Plan
  • 90-Day Phased Implementation Roadmap
Phase 03 • Managed Ops

Dev/Test/Prod Support & SRE

Starting At Custom Retainer Flexible Monthly SLA Coverage

Dedicated L2/L3 engineering coverage to resolve pipeline failures, optimize queries, and monitor model drift 24/7.

  • Dev & QA Environment Debugging Support
  • L3 Production RCA for OOM & Skew Issues
  • Automated Drift Monitoring & MLflow Rollbacks
  • Ongoing SQL Dashboard & KPI Enhancements
  • Dedicated Incident Response SLA Tiers
Get Started

Schedule Your Azure Databricks Consultation

Share your current data stack, bottlenecks, or project timeline. Our principal data and MLOps architects will prepare a tailored scope and custom quote within 1 business day.

  • Direct consultation with Principal Databricks & PySpark Architects
  • Complimentary 30-minute Lakehouse & FinOps posture review
  • NDA-protected architecture & low-level design scoping

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Pallavi Priyadarshini

Pallavi Priyadarshini

Risk technology consultant with a software engineering background, working across Python, data, and I provide solutions for banking and trading risk.