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Data Engineer

Data Engineer

OWOWHyderabad, IN
1 day ago
Job description

What You'll Build

Core Responsibilities

Data Architecture & Infrastructure (40%)

  • Design and implement a multi-database architecture (MongoDB, Redis, Milvus, Neo4j, BigQuery)
  • Build scalable data pipelines for real-time conversation processing and personalization
  • Architect ETL / ELT workflows for data migration from legacy systems
  • Implement data partitioning, sharding, and optimization strategies for high-throughput systems
  • Create data governance frameworks ensuring quality, security, and compliance Vector & Graph Database Systems (25%)
  • Design and optimize Milvus vector collections for semantic search (1024-dim embeddings)
  • Build graph schemas in Neo4j for customer journey mapping and persona relationships
  • Implement HNSW indexing strategies and similarity search optimization
  • Create hybrid search systems combining vector, full-text, and graph queries
  • Monitor and tune database performance (query latency, throughput, resource utilization)

ML Data Infrastructure (20%)

  • Build data collection pipelines for LLM fine-tuning (conversation logs, tool executions)
  • Create feature stores for GNN training (customer interactions, engagement signals)
  • Implement data versioning and lineage tracking for ML experiments
  • Design A / B testing data infrastructure with CUPED variance reduction
  • Build real-time feature computation pipelines for contextual bandits
  • Analytics & Monitoring (15%)

  • Design BigQuery schemas for marketing analytics and performance tracking
  • Create materialized views and aggregation pipelines for real-time dashboards
  • Implement data quality monitoring and anomaly detection
  • Build observability infrastructure (Prometheus metrics, Grafana dashboards)
  • Develop cost optimization strategies for cloud data warehousing
  • Technical Stack You'll Work With

    Databases & Storage

  • MongoDB (conversation state, active sessions)
  • Redis (caching, rate limiting, real-time data)
  • Milvus (vector embeddings, semantic search)
  • Neo4j (customer journey graphs, persona networks)
  • BigQuery (analytics warehouse, historical data)
  • Data Processing & Orchestration

  • Apache Airflow or Prefect (workflow orchestration)
  • Pandas , Polars (data transformation)
  • Apache Spark (optional - for large-scale processing)
  • dbt (data transformation and modeling)
  • ML / AI Data Pipeline

  • vLLM (LLM inference serving)
  • MLflow (model registry, experiment tracking)
  • Sentence Transformers (embedding generation)
  • PyTorch , TensorFlow (ML model training)
  • Cloud & Infrastructure

  • Google Cloud Platform (BigQuery, Cloud Storage, Compute)
  • Docker & Kubernetes (containerization, orchestration)
  • Terraform (infrastructure as code)
  • GitHub Actions or GitLab CI (CI / CD pipelines)
  • Programming & Tools

  • Python 3.10+ (primary language)
  • SQL (complex queries, query optimization)
  • Shell scripting (Bash / Zsh)
  • Git (version control)
  • Requirements

    Must-Have Skills

  • 5+ years of data engineering experience with production systems
  • Expert-level SQL and database design skills
  • Strong Python programming (async / await, type hints, testing)
  • Experience with at least 3 different database technologies (SQL, NoSQL, Vector, Graph)
  • Proven track record building high-scale data pipelines (>
  • 1M records / day)

  • Deep understanding of data modeling (dimensional, normalized, denormalized)
  • Experience with cloud data warehouses (BigQuery, Redshift, or Snowflake)
  • Strong knowledge of data quality, validation, and governance
  • Excellent debugging and optimization skills
  • Highly Desirable

  • Experience with vector databases (Milvus, Pinecone, Weaviate, Qdrant)
  • Experience with graph databases (Neo4j, ArangoDB, Neptune)
  • Knowledge of embedding models and semantic search
  • Experience with ML data pipelines (feature stores, model training data)
  • Understanding of A / B testing and experimental design
  • Experience with real-time streaming (Kafka, Pub / Sub, Kinesis)
  • Knowledge of LLMs and conversational AI systems
  • Experience with data migration projects (especially large-scale)
  • Background in marketing technology or customer data platforms
  • Nice-to-Have

  • Experience with PyTorch Geometric or graph neural networks
  • Knowledge of marketing analytics (attribution, segmentation, personalization)
  • Familiarity with LangChain , LangGraph , or agent frameworks
  • Experience with cost optimization in cloud environments
  • Contributions to open-source data engineering projects
  • Experience with data compliance (GDPR, CCPA)
  • Key Projects You'll Own

    Phase 1 : Foundation

  • Migrate 10M+ conversation vectors from Pinecone to Milvus
  • Design and implement MongoDB schemas for real-time agent state
  • Set up Neo4j graph database with customer journey models
  • Create BigQuery data warehouse with partitioned tables
  • Phase 2 : Optimization

  • Build automated data quality monitoring system
  • Implement caching strategies (Redis) for 10x latency reduction
  • Optimize vector search queries (target :
  • Create real-time analytics dashboards (Grafana)
  • Phase 3 : ML Infrastructure

  • Build LLM fine-tuning data pipeline
  • Implement feature store for GNN training
  • Create A / B testing data infrastructure
  • Design multi-armed bandit state management
  • Work Environment

  • Collaborative team : Work with ML engineers, backend developers, and data scientists
  • Modern stack : Latest technologies and tools
  • Impact : Your work directly affects millions of marketing interactions
  • Autonomy : Own your projects end-to-end
  • Growth : Clear path to Senior / Lead / Principal roles
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