Senior Software Engineer
CogniteBengaluru, Karnataka, India24 days ago
Job descriptionEngineer Spark applications with a deep understanding of Catalyst optimiser, partitioning strategies, and performance tuning Develop real-time streaming solutions processing millions of events per second with Kafka and Flink. Design efficient data lake architectures using S3 / GCS with optimised partitioning and file formats (Parquet, ORC). Implement query optimisation techniques for OLAP datastores like ClickHouse, Pinot, or Druid. Scale systems to 10K+ QPS while maintaining high availability and data consistency. Optimise JVM performance through garbage collection tuning and memory management. Implement comprehensive monitoring using Prometheus, Grafana, and distributed tracing. Design fault-tolerant architectures with proper circuit breakers and retry mechanisms. Contribute to open-source projects in the big data ecosystem (Spark, Kafka, Airflow). Research and prototype new technologies for industrial data challenges. Collaborate with product teams to translate complex requirements into scalable technical solutions. Participate in architectural reviews and technical design discussions. Distributed Systems Experience (4-6 years) - Production Spark experience - built and optimised large-scale Spark applications with understanding of internals - Streaming systems proficiency - implemented real-time data processing using Kafka, Flink, or Spark Streaming - JVM Language expertise - strong programming skills in Java, Scala, or Kotlin with performance optimisation experience. Data Platform Foundations (3+ years) - Big data storage systems - hands-on experience with data lakes, columnar formats, and table formats (Iceberg, Delta Lake) - OLAP query engines - worked with Presto / Trino, ClickHouse, Pinot, or similar high-performance analytical databases - ETL / ELT pipeline development - built robust data transformation pipelines using tools like DBT, Airflow, or custom frameworks Infrastructure and Operations - Kubernetes production experience -deployed and operated containerised applications in production environments. Cloud platform proficiency - hands-on experience with AWS, Azure, or GCP data services. Monitoring and observability - implemented comprehensive logging, metrics, and alerting for data systems. Performance Engineering - System optimisation experience - delivered measurable performance improvements (2x+ throughput gains). Resource efficiency - optimised systems for cost while maintaining performance requirements. Concurrency expertise - designed thread-safe, high-concurrency data processing systems. Data Engineering Best Practices - Data quality frameworks -implemented validation, testing, and monitoring for data pipelines. Schema evolution - managed backwards-compatible schema changes in production systems. Data modelling expertise - designed efficient schemas for analytical workloads. Technical Collaboration - Cross-functional partnership - worked effectively with product managers, ML engineers, and data scientists. Codereview excellence - provided thoughtful technical feedback and maintained high code quality standards. Documentation and knowledge sharing - created technical documentation and participated in knowledge transfer. Continuous Learning - Technology adoption - quickly learned and applied new technologies to solve business problems. Industry awareness - stayed current with big data ecosystem developments and best practices. Problem-solving approach - demonstrated a systematic approach to debugging complex distributed system issues. Execution Excellence - Rapid delivery - consistently shipped high-quality features within aggressive timelines. Technical pragmatism - made smart trade-offs between technical debt, velocity, and system reliability. End-to-end ownership - took responsibility for features from design through production deployment and monitoring. Ambiguity comfort - thrived in environments with evolving requirements and unclear specifications. Technology flexibility - adapted to new tools and frameworks based on project needs. Customer focus - understood how technical decisions impact user experience and business metrics. Open-source contributions to major Apache projects in the data space (e. g. Apache Spark or Kafka) are a big plus. Conference speaking or technical blog writing experience, Industrial domain knowledge - previous experience with IoT, manufacturing, or operational technology systems. Languages : Kotlin, Scala, Python, Java. Big Data : Apache Spark, Apache Flink, Apache Kafka. Storage : PostgreSQL, ClickHouse, Elasticsearch, S3-compatible systems. Infrastructure : Kubernetes, Docker, Terraform. Table Formats : Apache Iceberg, Delta Lake, Apache Hudi. Query Engines : Trino / Presto, Apache Pinot, DuckDB. Orchestration : Apache Airflow, Dagster. Monitoring : Prometheus, Grafana, Jaeger, ELK Stack.
Cognite is revolutionising industrial data management through our flagship product, Cognite Data Fusion - a state-of-the-art SaaS platform that transforms how industrial companies leverage their data. We're seeking a Senior Data Platform Engineer who excels at building high-performance distributed systems and thrives in a fast-paced startup environment. You'll be working on cutting-edge data infrastructure challenges that directly impact how Fortune 500 industrial companies manage their most critical operational data.
Responsibilities :
- High-Performance Data Systems : Design and implement robust data processing pipelines using Apache Spark, Flink, and Kafka for terabyte-scale industrial datasets.
- Build efficient APIs and services that serve thousands of concurrent users with sub-second response times.
- Optimise data storage and retrieval patterns for time-series, sensor, and operational data.
- Implement advanced caching strategies using Redis and in-memory data structures.
Distributed Processing Excellence :
Scalability and Performance :
Technical Innovation :
Requirements :
Technical Depth Indicators :
Collaboration and Growth :
Startup Mindset :
Bonus Points :
Technical Stack :
Primary Technologies :
Technologies You May Work With :
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Senior Software Engineer • Bengaluru, Karnataka, India
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