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Technical Lead – Big Data & Streaming (Preferred Java)

Airtel Digital

5 - 10 years

Gurugram

Posted: 05/01/2026

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Job Description

Experience: 69 Years

Primary Skills: Java, Python, Big Data, Real-time / Streaming Systems

Role Overview

We are looking for a hands-on Big Data Technical Lead with strong expertise in Java/Python-based data engineering , large-scale distributed systems, and real-time streaming architectures . The role requires deep technical ownership, design leadership, and the ability to guide teams in building high-performance, reliable, and scalable data platforms .

Key Responsibilities

  • Own end-to-end technical design and architecture of batch and streaming data pipelines
  • Lead development of high-throughput, low-latency data processing systems using Java
  • Design and implement real-time streaming solutions (event ingestion, processing, aggregation)
  • Drive code quality, performance optimization, and scalability across systems
  • Review code, mentor engineers, and set engineering best practices
  • Collaborate with product, platform, infra, and security teams to deliver production-grade solutions
  • Ensure data reliability, fault tolerance, and observability (metrics, logs, alerts)
  • Automate operational workflows and deployment pipelines
  • Participate in capacity planning, cost optimization, and system tuning
  • Stay current with evolving Big Data and streaming ecosystems and evaluate new technologies

Required Skills & Experience

Core Technical Skills

  • Strong proficiency in Java (multithreading, concurrency, JVM tuning)
  • Hands-on experience with distributed data processing frameworks :
  • Apache Spark (Core, SQL, Streaming / Structured Streaming / Apache Flink)
  • Apache Kafka (producers, consumers, partitions, offsets, exactly-once semantics)
  • Solid understanding of batch + streaming architectures (Lambda / Kappa patterns)
  • Experience with Hadoop ecosystem components (HDFS, Hive, YARN or equivalents)

Data & Storage

  • Strong knowledge of relational databases (PostgreSQL, MySQL)
  • Experience with NoSQL / distributed datastores (HBase, Cassandra, MongoDB, Pinot etc.)
  • Understanding of data modeling, partitioning, and schema evolution

Platform & Operations

  • Experience with Linux-based systems and production deployments
  • Exposure to containerization and orchestration (Docker, Kubernetes preferred)
  • Familiarity with monitoring and observability tools (Grafana, Prometheus, ELK, etc.)
  • Experience with CI/CD pipelines and automated testing frameworks


Leadership & Soft Skills

  • Proven experience leading technical teams and driving delivery
  • Strong problem-solving and debugging skills in complex distributed systems
  • Ability to take ownership of critical systems and make architectural decisions
  • Excellent communication skills to work with cross-functional stakeholders
  • Comfortable working in a fast-paced, evolving data ecosystem


Good to Have (Plus Skills)

  • Experience with Flink / Kafka Streams / real-time analytics
  • Exposure to cloud-native data platforms (AWS, GCP, Azure)
  • Knowledge of data governance, security, and access control
  • Experience in telecom, fintech, or large-scale consumer data platforms


Why This Role?

  • Work on large-scale, real-time data systems
  • High technical ownership and architectural influence
  • Opportunity to shape next-generation streaming and analytics platforms

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