Rajesh Kumar Singh

Data Architect I Mentor I Technology Leader I PMP I M.Tech in Data Science (BITS Pilani)

Transforming complex data into scalable, actionable insights

Rajesh Kumar Singh

20+ Yrs of Experience in Data Architect I Mentor I Technology Leader I PMP I Educator I B.Tech in Computer Science I M.Tech in Data Science (BITS Pilani).

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Rajesh Kumar Singh portrait

About

About Me

I am a Data Architect ,Mentor and Technology Leader with over 20 years of experience across data engineering, analytics, cloud platforms, and enterprise systems. I specialize in designing scalable data architectures, modernizing legacy systems, and translating complex business problems into practical, high-impact solutions. I have led large data and cloud initiatives , working extensively with Azure, Databricks, Snowflake, and Python, Oracle, SQL Server . Alongside industry work, I actively mentor professionals on data architecture, career transitions, certifications, and leadership growth.

I enjoy teaching, Math , Backend Coding ,problem-solving, and helping individuals and teams move from data to decisions with clarity and confidence.

I help organisations turn scattered data into trusted products-through solid architecture, robust pipelines, and governance-driven delivery.

Data Architecture Azure Databricks ADF Snowflake ADF / ETL Data Governance Data Lakehouse Tableau / Power BI Oracle PL/SQL/T-SQL Python / PySpark .NET /C#/ASP.NET
Quick facts

Experience: 20+ years
Focus: Data Architect I Mentor I Technology Leader I Project Management I Educator
Based: UK (open to opportunities)

Let’s collaborate →

Highlights

Cloud & Modernization

Migration strategy workshops, lakehouse patterns (Bronze/Silver/Gold), governance and cost-aware design, Data Modeling and Front end Development-.Net and Java script

Performance & Reliability

SQL/PLSQL,DataPipe tuning,scalable orchestration, data quality checks, logging and production support playbooks.

Selected work

TERI → Azure Migration Blueprint

Designed an 8-week migration strategy and target architecture using Kusto, SQL Server and Databricks.

Data Lakehouse & Analytics

Built medallion pipelines (ADF/Databricks) and enabled BI consumption with Tableau/Power BI.

Production-grade SQL Processing

Created large-scale Oracle SQL preprocessing scripts with reference tables, fuzzy logic and systematic logging.

Articles & thought leadership

From Data to Decisions

A practical view on why modern technology leaders must think like architects—systems, governance, and people.

Read on Medium →
Data Engineering 2030

How trends like lakehouse, AI/ML and data product thinking reshape what “good” delivery looks like.

Read article →

Let’s connect

Ready to collaborate?

Open to discussing data architecture, cloud migration strategy, modern data platform build-outs, and analytics enablement ,Education and Maths. If you’re hiring or need a hands-on architect for a critical delivery, let’s talk.

Email me LinkedIn GitHub
Details

Email: errajeshcs@gmail.com
Location: UK
Availability: By appointment Let’s collaborate →