
Mustansir G.
Senior Data Engineer
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Portfólio
Experiência profissional
Senior Data Engineer
Dev • Período integral
Feb 2026 - Present • 6 mos
Building enterprise data pipelines for 11:11 Systems, a US-based cloud infrastructure SaaS company. Designed and maintained a CDC pipeline across 100+ tables from Salesforce, ServiceNow, Oracle, Zuora, and Okta into Snowflake using hash-based change detection and medallion architecture. Resolved a $10.4M MRR billing discrepancy caused by a 430x fan-out bug. Built SnowWatch, a Streamlit monitoring dashboard covering 47 pipelines with Slack alerting and schema validation. Also building pipelines on Microsoft Fabric, Databricks, and Azure Data Factory.
Data Engineer & Backend Developer
Labelbox • Freelance
Dec 2025 - Present • 8 mos
Built and delivered production freelance projects across data engineering and backend development. Key engagements include: 8tivity — a WhatsApp-native event coordination platform for a UK-based client (Seiki Sakei LLP). Built end-to-end on Node.js, Supabase PostgreSQL, and Meta WhatsApp Cloud API v21.0. Handles event creation, 4 RSVP payment modes, multi-person group bookings, custom questions, and real-time participant notifications. Live in production. Snowflake and Power BI mentoring — delivered structured one-on-one tutoring sessions for a client on Snowflake architecture, dbt transformations, and Power BI reporting. 5-star review on Upwork. AI model training — contracted by Labelbox via Alignerr to evaluate Python code quality and technical accuracy for AI model training. Effective rate $75-90/hr.
Data Engineer
Radixweb • Período integral
Oct 2023 - Jan 2026 • 2 yrs 3 mos
Built production data pipelines processing 800M+ records daily on Snowflake. Delivered 50+ Power BI dashboards across fleet, maritime, shipping, and operations domains. Implemented dbt transformation layers reducing pipeline runtime by 70%. Built data quality frameworks achieving 98% data trust scores. Stack included Snowflake, dbt, Airflow, PySpark, Python, Azure, and Power BI.