Senior Data Scientist – Data Architecture & Governance

Nysonian is seeking a Senior Data Scientist to enhance and manage its data environment across multiple business verticals, including Operations, Finance, Marketing, Sales, Customer Support, eCommerce, and Travel Technology. This full-time, in-person role based in Islamabad requires working hours from 6 PM to 2 AM PKT. The successful candidate will take ownership of the company’s primary PostgreSQL database and broader data architecture, ensuring data integrity, scalability, and security while balancing urgent business needs with long-term infrastructure reliability.

Key Responsibilities

- Own and optimize the PostgreSQL database structure, including schemas, indexes, views, and analytical models. Document existing architecture, data flows, and dependencies.
- Improve database performance through query optimization, indexing, and data modeling best practices.
- Define clear boundaries and reduce duplication between PostgreSQL and other systems such as MongoDB, Supabase, Firebase, and AWS-hosted infrastructure.
- Design, build, and maintain robust ETL/ELT pipelines integrating data from various internal and third-party sources.
- Develop standardized processes for data extraction, transformation, synchronization, and validation, ensuring pipelines are scalable, documented, and recoverable.
- Establish company-wide data governance protocols covering data lifecycle management, ownership, retention, access controls, and security.
- Create and maintain data dictionaries, lineage documentation, architecture diagrams, and source-of-truth registers.
- Translate business problems into analytical questions and develop forecasting, segmentation, anomaly detection, and optimization models.
- Build automated data quality checks and lead root-cause analysis for data incidents, ensuring dashboards and reports use validated datasets.
- Collaborate cross-functionally with Engineering, DevOps, Finance, Marketing, Sales, Product teams, and executives to align technical solutions with business goals.
- Train teams on data governance and responsible usage, communicate clearly during high-pressure situations, and manage competing priorities without compromising data integrity.

Required Qualifications

- Bachelor’s or Master’s degree in Data Science, Computer Science, Statistics, Mathematics, Engineering, or related fields.
- Minimum of five years’ experience in data science, analytics engineering, data engineering, or data architecture.
- Advanced proficiency in PostgreSQL and SQL, with demonstrated experience designing and optimizing relational databases.
- Strong skills in Python for data processing, automation, and modeling.
- Experience building and maintaining production-grade ETL/ELT pipelines and integrating relational databases with APIs and third-party systems.
- Working knowledge of MongoDB, Supabase, Firebase, and AWS-hosted data services.
- Proven experience establishing data governance, lineage, access control, and quality management processes.
- Familiarity with version control, CI/CD, database migrations, testing, monitoring, and production deployment.
- Experience supporting BI tools, dashboards, and executive reporting environments.

Preferred Qualifications and Benefits

- Experience in eCommerce, travel technology, warehousing, logistics, finance, or subscription-based businesses.
- Familiarity with Shopify, WMS platforms, CRM, accounting, advertising, or customer-support systems.
- Knowledge of data orchestration tools such as dbt, Airflow, Dagster, or Prefect.
- Experience with AWS services including RDS, S3, Redshift, Glue, Lambda, CloudWatch, and IAM.
- Background in designing data warehouses or centralized analytical layers.
- Experience deploying and monitoring machine-learning models in production.
- Understanding of data privacy, security, auditability, and regulatory compliance.
- Comfortable working in fast-evolving environments with changing systems and processes.

Nysonian offers a culture driven by speed, accountability, and innovation, with senior leaders closely involved in execution. The company invests in tools and management practices that empower employees to deliver their best work. Employees enjoy competitive pay, performance-based advancement opportunities, and ownership of strategic initiatives across two consumer brands. Nysonian is proud to be an equal opportunity employer, welcoming applicants from diverse backgrounds without discrimination.