Himalayas Candidate
candidate@example.com
Remote
Dear Ms. Lim,
I am excited to apply for the Database Architect position at Grab. With over eight years designing and operating large-scale data platforms across financial services and technology companies, I am drawn to Grab's mission to drive everyday economic empowerment across Southeast Asia and eager to contribute by ensuring your data foundation is highly available, performant, and secure.
In my current role as Senior Database Engineer at OCBC (Singapore), I led the migration of a customer-facing transaction platform from on-prem Oracle to a hybrid architecture using PostgreSQL and Amazon RDS, reducing infrastructure costs by 28% and improving query response times by 40%. I architected multi-AZ replication, implemented row-level security, and introduced capacity planning processes that decreased production incidents by 60% year-over-year. Previously at a regional fintech startup, I designed a Cassandra-based time-series store and integrated it with Kafka and AWS Lambda to support real-time analytics for fraud detection, which shortened mean-time-to-detect by 70%. I bring deep expertise in relational and NoSQL data modeling, performance tuning (indexes, partitioning, query optimization), backup and recovery strategies, database security (encryption, IAM, audit logging), and automation using Terraform, Ansible, and CI/CD pipelines. I am also familiar with Google Cloud Spanner and BigQuery from cross-cloud projects with Google Cloud Platform teams.
Grab's focus on building resilient, scalable services for millions of users across diverse markets strongly aligns with my career goals to design data systems that enable business agility and trust. I admire Grab's use of data to optimize logistics, payments, and financial services — areas where a robust, well-governed database architecture directly impacts both customer experience and regulatory compliance. I am particularly enthusiastic about partnering with product and ML teams to create low-latency data paths for real-time decisioning and to introduce data governance practices that balance speed with safety.
I would welcome the opportunity to discuss how my experience in database architecture, cloud migration, and operational excellence can support Grab's continued growth across Southeast Asia. Thank you for considering my application; I look forward to the possibility of contributing to your engineering organization and helping scale Grab's data capabilities.
Sincerely,
Sofia Tan
