Senior Data Engineer (PostgreSQL, AWS) - Banking

Keyrus; Hong Kong; On-site; HKD 800,000 - 1,200,000; Full time

Job summary

Keyrus in Hong Kong is seeking a Senior Data Engineer to support a major banking database migration programme, focusing on migrating PostgreSQL workloads to AWS. This hands-on role requires delivering production-critical database or cloud migration projects.

You will lead migration activities, assess databases and workloads, design strategies using AWS RDS, Aurora PostgreSQL and AWS DMS, and work with cross-functional teams to ensure data integrity and minimal disruption in a banking environment.

Qualifications

• 4–7+ years in Data Engineering or similar role.
• Strong PostgreSQL and SQL expertise.
• Experience migrating PostgreSQL/enterprise databases to AWS.
• Experience with AWS RDS, Aurora PostgreSQL and AWS Database Migration Service (DMS).
• Banking/financial services experience preferred.

Responsibilities

• Lead PostgreSQL → AWS database migration activities.
• Assess databases, schemas, dependencies and workloads.
• Design and execute migration strategies using AWS RDS, Aurora PostgreSQL and AWS DMS.
• Manage data migration, validation, reconciliation and performance tuning.
• Support testing, cutover, production deployment and stabilisation.
• Work closely with application, cloud, infrastructure, security and architecture teams.
• Ensure data integrity and minimal disruption to critical banking systems.

Skills

PostgreSQL

SQL

AWS

Data migration

Banking domain

Python

Terraform

CloudFormation

DMS

Tools

AWS DMS

RDS

Aurora PostgreSQL

Terraform

CloudFormation

Job description

Keyrus is looking for a Senior Data Engineer to join our team in Hong Kong and support a major banking database migration programme, focused on migrating PostgreSQL workloads to AWS.

This is a hands-on role for someone who has experience delivering production-critical database or cloud migration projects, ideally within banking or financial services.

What you’ll be working on:

• Lead and support PostgreSQL → AWS database migration activities
• Assess databases, schemas, dependencies and workloads
• Design and execute migration strategies using AWS RDS, Aurora PostgreSQL and AWS DMS
• Manage data migration, validation, reconciliation and performance optimisation
• Support testing, cutover, production deployment and stabilisation
• Work closely with application, cloud, infrastructure, security and architecture teams
• Ensure data integrity, security and minimal disruption to critical banking systems

What we’re looking for:

• 4-7+ years in Data Engineering, Database Engineering or a similar role
• Strong hands-on PostgreSQL and SQL expertise
• Proven experience migrating PostgreSQL or enterprise databases to AWS
• Strong experience with RDS, Aurora PostgreSQL and AWS Database Migration Service (DMS)
• Experience with production-critical database migration programmes
• Strong understanding of data validation, reconciliation, performance tuning and troubleshooting
• Banking / financial services experience strongly preferred
• Experience delivering similar cloud or database migration programmes within a bank is a strong advantage
• Python, Terraform, CloudFormation or AWS certifications are a plus

The ideal candidate is a senior, hands-on engineer who can independently drive migration activities and is comfortable operating within the security, governance and change-management requirements of a banking environment.