Impactful Data Engineering roles at product companies, MNCs, or consulting firms — building and scaling cloud-native pipelines on Snowflake, GCP, or AWS. Open to all work modes. Aiming to grow into a Senior / Lead DE driving architecture decisions and mentoring teams.
Looking for a job
Raj Kumar ray
@rajkumarray
Big Data & Cloud Engineer | 3 YoE | SnowPro Certified | GenAI · RAG · BigQuery | Snowflake · BigQuery · PySpark · Airflow · dbt · AWS Glue
IndiaWhat I'm looking for
I'm a Data Engineer with 3 years of hands-on experience designing and optimizing large-scale data pipelines, cloud data warehouses, and AI-integrated workflows. Currently at Infosys, I work across the full data stack — from authoring PySpark and SQL transformations to orchestrating complex Airflow DAGs on GCP Cloud Composer, building Snowflake frameworks, and deploying GenAI solutions using Vertex AI and RAG architectures.
Previously at CEAT Limited, I architected end-to-end data platforms on AWS (Glue, Athena, S3, QuickSight) and built production GenAI agents using AWS Bedrock and Claude Sonnet — delivering measurable outcomes including a 15% lift in customer satisfaction and 200+ minutes/day saved through automated OCR pipelines.
Core strengths: Big Data Engineering · ETL/ELT Pipeline Development · Snowflake (SnowPro Certified) · Apache Airflow · PySpark · dbt · GCP (BigQuery, Cloud Composer, GCS, Dataproc) · AWS (Glue, S3, Athena, Bedrock, QuickSight) · SQL Optimization · Data Modeling · Generative AI · RAG · LangChain · LLMs (LLaMA, GPT, Groq) · Python · GitLab CI/CD · Jenkins
I'm passionate about building data systems that don't just move data — they create business value. I've been recognized with Infosys's Q3 Rookie Award and Performance Excellence Award, and hold a Snowflake SnowPro Core Certification. LeetCode Top 4.48% (Max Rating: 1898) | CodeChef 4★ (1940).
Open to Senior Data Engineer, Cloud Data Engineer, Big Data Engineer, and ML/AI Data Engineer roles — on-site, hybrid, or remote.
Experience
Work history, roles, and key accomplishments
IL
Current
Data Engineer
Infosys Limited
Nov 2024 - Present (1 year 4 months)
Refactored SQL and restructured Airflow DAGs to cut batch execution time from 6 hours to 20 minutes (zero data loss), saving 5.5 hours/day and $108,000/year in compute costs. Migrated 250+ production DAGs from Managed Airflow to GCP Composer with zero failures, zero data loss, and 100% on-time cutover.
CL
Associate Data Engineer
CEAT Limited
Dec 2023 - Nov 2024 (11 months)
Built an Energy Analytics dashboard using AWS Glue, Athena, and QuickSight to improve accuracy by 25% and operational efficiency by 20% while increasing cross-department visibility. Launched a GenAI Sales AI Agent with AWS Bedrock and Claude Sonnet, and implemented OCR-based automation for new SKU tyre images using Azure Document Intelligence and Bedrock.
RT
Intern to Software Engineer
Raymedis Medical Technology
Nov 2022 - Dec 2023 (1 year 1 month)
Promoted from Intern to Associate Software Engineer and built clinical software modules in C#/.NET with SQL backend support for record management and diagnostic image handling. Wrote optimized SQL for retrieval, performance tuning, and validation, and managed scan storage to ensure efficient processing within the repository infrastructure.
Education
Degrees, certifications, and relevant coursework
DU
DRIEMS University
Bachelor of Technology (B.Tech), Computer Science Engineering (CSE)
2019 - 2023
Grade: CGPA: 9.26
Completed a B.Tech in Computer Science (CSE) with a CGPA of 9.26 from DRIEMS University.
DB
DAV Public School, Balasore
Class 12, Higher Secondary
2018 - 2019
Grade: Percent: 90.4%
Completed Class 12 at DAV Public School, Balasore with 90.4% in 2018–2019.
DB
DAV Public School, Balasore
Class 10, Secondary
2016 - 2017
Grade: CGPA: 10.00
Completed Class 10 at DAV Public School, Balasore with a CGPA of 10.00 in 2016–2017.
Tech stack
Software and tools used professionally
Availability
Looking for a job
Location
IndiaAuthorized to work in
Social media
Skills
SQLPythonAirflowPysparkDBTSnowflakeSnowpipeGCSBigQueryData ModelingJenkinsGitlabREST APIsAWS GlueAmazon S3Amazon AthenaDMSQuickSightAWS AI BedrockAzure Blob StorageAzure AI Document IntelligenceShell ScriptingGenerative AIRAGVertex AILang ChainChromaDBEmbeddingsSentence TransformersGROQClaude Sonnet 3.5C.NETStreamlitGitHubGmailIncreaseJupyterLinuxMySQLPostgreSQLRayStack AI
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