# Shivanjan Singha Roy

Shivanjan Singha Roy is a remote worker on Himalayas, Associate Prompt Engineer at NVIDIA, based in India.

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

```text
I build AI-powered backend applications, including secure RAG document search platforms with Java and Spring Boot.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | India |
| Authorized to work in | India |
| Salary expectations | 800k+ INR |
| Job categories | Full Stack Engineer, Backend Engineer, AI Engineer, Prompt Engineer, Data Quality Analyst, Machine Learning Engineer, Software Engineer, Full Stack Engineering, Full Stack Web Developer, Full Stack Developer, Full Stack Engineer Jobs, Full Stack Product Engineer, Full Stack Software Engineering, Full Stack JavaScript Engineer, Full Stack Software Developer, Full Stack Engineering Jobs |
| Skills | Java, Python, JavaScript, SQL, Spring Boot, Spring MVC, REST APIs, Hibernate, JPA, Hibernate Spring Data, JDBC, Spring Security, JWT, Dependency Injection, And Exception Handling Tools, RAG, Semantic Search, Embeddings, Prompt Engineering, Generative AI, Gemini API, PostgreSQL, Pgvector, MySQL, Database Design, HTML, CSS, API Integration, Responsive Design, Git, GitHub, Postman, Maven, IntelliJ IDEA, Flyway, Apache PDFBox, Computer Vision, Multimodal AI, Data Quality Assurance, Spring Data, Gemini, Temporal |

## What I'm looking for

```text
I’m looking to build production-ready AI applications and intelligent backend systems, especially work involving Generative AI, RAG, semantic search, Java, and Spring Boot.
```

## About

```text
I built Dronzer, a multi-user AI document search and question-answering platform using Java, Spring Boot, PostgreSQL, pgvector, Gemini API, Spring Security, and JWT.

I developed PDF and TXT ingestion, text extraction, chunking, indexing, Gemini embeddings, semantic search, multi-tenant document isolation, and grounded RAG responses with source attribution. I also added validation and automated tests for retrieval, authentication-aware access, and fallback responses.

At NVIDIA via Spectrum Consultants India Pvt. Ltd., I performed quality assurance for computer vision and multimodal AI training data, validating annotations, pseudo-labels, bounding boxes, spatial relationships, and contextual events. I’m interested in building production-ready AI applications and intelligent backend systems.
```

## Experience

### Associate Prompt Engineer

[NVIDIA](https://himalayas.app/companies/nvidia). Jan 2026 - Aug 2026

```text
Performed quality assurance and validation of AI/ML training data for computer vision and multimodal AI workflows. Reviewed and corrected annotations to improve data quality and support reliable model development.
```

Skills: AI-Data-Quality, Computer-Vision, Multimodal-AI, Quality-Assurance, Spatial-Reasoning, Grounding, Bounding-Boxes, Referring-Expressions

## Education

### Future Institute of Technology

Bachelor of Technology, Computer Science Engineering. 2021 - 2025. Grade: CGPA: 7.95

```text
Pursued a Bachelor of Technology in Computer Science Engineering, achieving a CGPA of 7.95.
```

### ISC Higher Secondary

Higher Secondary Certificate, General Studies. Grade: 83%

```text
Completed higher secondary education with a score of 83%.
```

### ICSE Secondary

Secondary School Certificate, General Studies. Grade: 77.5%

```text
Completed secondary education with a score of 77.5%.
```

## Tech stack

- Postman
- GitHub
- Spring Data
- MySQL
- PostgreSQL
- Spring Boot
- Spring MVC
- IntelliJ IDEA
- JavaScript
- Java
- Gemini
- Spring Security
- SQL
- Temporal
- pgvector

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

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