> Markdown version of [/jobs/ext/651940-data-engineer](https://www.wearedevelopers.com/jobs/ext/651940-data-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Data Engineer - **Company:** Insight Global - **Location:** Oakland, CA, United States - **Contract:** Permanent contract - **Skills:** Big Data, Data Validation, Extract Transform Load (ETL), Oracle Databases, Oracle SQL Developer, Performance Tuning, Query Optimization, PL-SQL, Data Streaming, Database Optimization, Software Troubleshooting, Sql Tuning - **Published:** June 26, 2026 - **Apply:** https://www.juju.com/job/00000000gb3xsz ## About the Role Strong expertise in Oracle SQL and PL/SQL, with a focus on performance tuning Proven experience in query optimization, including execution plan analysis and indexing strategies Hands-on experience designing and tuning materialized views (refresh strategies, performance impact, dependencies) Experience working with large-scale datasets and high-volume data environments Solid understanding of ETL pipelines and data validation techniques Strong troubleshooting and problem-solving skills in complex data environments ## Description We are seeking a highly skilled Data Engineer with deep expertise in SQL performance tuning and Oracle database optimization to join our Reporting Instance (RI) team on a contract basis. This role will play a critical part in the Self-Managed Hosting (SMH) initiative, working closely with RI and Infrastructure teams to set up new environments, validate end-to-end data flows, and ensure high-performing, scalable data solutions. This is an ideal opportunity for a hands-on engineer who thrives in solving complex data performance challenges at scale. ## Related Videos - [Making Data Warehouses fast. A developer's story.](https://www.wearedevelopers.com/videos/302-making-data-warehouses-fast-a-developer-s-story) - [Alibaba Big Data and Machine Learning Technology](https://www.wearedevelopers.com/videos/37-alibaba-big-data-and-machine-learning-technology) - [From Messy Queries to Scalable Systems - How Data Engineering actually works](https://www.wearedevelopers.com/videos/100203-from-messy-queries-to-scalable-systems-how-data-engineering-actually-works) - [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data) - [Modern Data Architectures need Software Engineering](https://www.wearedevelopers.com/videos/1030-modern-data-architectures-need-software-engineering) - [Fine-Tuning Small Language Models for Agentic AI](https://www.wearedevelopers.com/videos/100352-fine-tuning-small-language-models-for-agentic-ai) ## Related Articles - [Making Data Warehouses Fast: A Developer’s Story](https://www.wearedevelopers.com/magazine/107-making-data-warehouses-fast-a-developer-s-story) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Top Big Data Technologies That You Need to Know](https://www.wearedevelopers.com/magazine/108-top-big-data-technologies-that-you-need-to-know) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)