# Harjinder Singh

Harjinder Singh is a remote worker on Himalayas, Programmer Analyst Trainee at Cognizant Technology Solutions, based in India.

Source: https://himalayas.app/@harjindersingh1

```text
Data and AI engineer who built a LangChain government scheme advisor and Azure player analytics pipeline.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | India |
| Authorized to work in | India |
| Salary expectations | 30k+ USD |
| Job categories | Data Engineer, AI Engineer |
| Skills | Data Engineering, ETL ELT Design, Data Quality, Data Profiling, Data Warehouse, Medallion Architecture, AI Agents, RAG, Model Context Protocol (MCP), Prompt Engineering, Agentic Workflows, Azure Data Factory, Data Lake Storage Gen2, Azure Databricks, PySpark |
| LinkedIn | https://linkedin.com/in/harjindersinghs |
| GitHub | https://github.com/harjindersingh10 |

## About

```text
At Cognizant Technology Solutions, I built ETL workflows with Informatica PowerCenter and Python to profile data and address integrity issues in banking datasets. I also designed regulatory data validation pipelines using Informatica Data Quality.

I automated data quality checks with Python multithreading and T-SQL, then reviewed edge cases and wrote unit tests to catch silent failures before production.

At L&T Technology Services, I built a mental health chatbot using Retrieval-Augmented Generation and developed its document retrieval and Python backend workflow. I evaluated responses and refined prompts to reduce hallucinated or off-context answers.

On Schemify AI, I built a multi-agent government scheme advisor with LangChain and Mistral AI, adding inter-agent validation to check outputs. I also built Click to Insight, an Azure data pipeline and dashboard for player engagement analytics.
```

## Experience

### Programmer Analyst Trainee

[Cognizant Technology Solutions](https://himalayas.app/companies/cognizant). Feb 2026 - May 2026

```text
Built end-to-end ETL workflows using Informatica PowerCenter and Python, performing data profiling and rule-based validation to resolve data integrity issues across banking datasets. Designed regulatory data validation pipelines ensuring completeness, accuracy, and consistency using Informatica Data Quality (IDQ).
```

Skills: Informatica-PowerCenter, Informatica-Cloud-Data-Quality, Python, T-SQL, Data-Profiling, Data-Quality, ETL, Multithreading, Unit-Testing

### Front-End & AI Developer Intern

[L&T Technology Services](https://himalayas.app/companies/l-t-technology-services). Jun 2025 - Jul 2025

```text
Built a mental health chatbot using Retrieval-Augmented Generation (RAG) to provide context-aware responses grounded in curated mental health resources. Developed the application workflow integrating document retrieval, contextual prompt generation, and a Python-based backend.
```

Skills: RAG, Python, Prompt-Engineering, Backend-Development, Chatbot-Development

## Education

### Sri Sairam Institute of Technology

B.Tech, Information Technology. 2022 - 2026. Grade: 8.15/10.0

```text
Pursued a B.Tech in Information Technology, achieving a CGPA of 8.15/10.0.
```

### Oracle University

Oracle Agentic AI Foundations Associate, Artificial Intelligence

```text
Earned the Oracle Agentic AI Foundations Associate certification.
```

### Databricks

Databricks Fundamentals Accreditation, Data Engineering

```text
Earned the Databricks Fundamentals Accreditation.
```

### Udemy

Intro to Data Analytics & AI, Data Analytics

```text
Completed the Intro to Data Analytics & AI course on Udemy.
```

### GUVI

AI Fundamentals, Artificial Intelligence

```text
Completed the AI Fundamentals certification from GUVI.
```

### Cisco

Python Essentials 1, Programming

```text
Completed the Python Essentials 1 certification from Cisco.
```

## Tech stack

- GitHub Actions
- PySpark
- MySQL
- Python
- FastAPI
- Linux
- Git
- Docker
- BeautifulSoup
- SQL
- Delta Lake
- Mistral AI
- Bash
- Model Context Protocol (MCP)
- Retrieval-Augmented Generation (RAG)
- Informatica PowerCenter

To contact Harjinder, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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