01
Change data capture
Streaming WAL or binlog changes to the target database, with replication lag monitored throughout.
Principal / Lead
Hire database migration specialists for live production systems
Migration engineers who move production databases between engines and hosts — MySQL to PostgreSQL, self-managed to Aurora — while the application keeps serving traffic.
Role profile
What we look for in a Senior Database Migration Specialist
Seniority and experience are agreed in the proposal, and you interview every engineer before they start. These are the skills that interview should test.
02
Dual writes and shadow reads
Mirroring queries to the new database to compare results and performance before it takes real traffic.
03
Cutover and rollback
Rehearsed cutovers in a short, agreed window, with reverse replication kept running so you can switch back.
Typical work
What a Senior Database Migration Specialist typically works on
Examples of the scope this role is hired for. Your statement of work sets the actual deliverables and how they are accepted.
- 01MySQL to PostgreSQL migrations for large production databases
- 02Moves from self-managed EC2 databases to Aurora Serverless v2
- 03Consistency checks comparing row counts and checksums between source and target
- 04Reverse replication for rollback after cutover
Stack and tools
What this role works with day to day. Tell us your stack and we’ll say plainly which parts we can staff.
- Debezium
- Kafka Connect
- PostgreSQL
- MySQL
- AWS DMS
- pgloader
Technology guides
Related service
IT consulting servicesA written, evidence-backed answer to the technical decision you can't afford to get wrong.
How hiring works
Four steps, agreed in writing before anyone starts
01
Tell us the role
The stack, the seniority you need, the hours you want covered, and any certifications the work requires. We reply within one business day.
02
We propose engineers
A written proposal sets out who we'd put forward, their seniority and experience, the scope, and the terms. If we can't staff the role well, we say so.
03
You interview every engineer
Nobody starts on your codebase until you've interviewed them and agreed. Use the skills on the role page as your interview checklist.
04
Working arrangements go in the SOW
Working-hours overlap is agreed for each engagement and written into the statement of work — the shared window, who shifts hours, and how handoffs work outside it.
QuantmHill provides development teams from India for Indian startups and SMEs. Role profiles describe project capabilities; availability is confirmed for your engagement. Our team works on India Standard Time. Project working hours, availability and handoff responsibilities are agreed before kickoff.
Need specific certifications? Tell us at the start and we'll confirm whether we can staff to that requirement before you sign. There are no recruiting fees.
FAQ
Questions about hiring a Senior Database Migration Specialist
Answered the way we would on a call. If yours isn’t here, send it — we reply within one business day.
Replication runs until lag reaches zero, writes pause briefly for the switch, sequences are synchronized, and row counts and checksums are compared before traffic moves. Reverse replication keeps the old database current in case you need to roll back.
CDC reads the transaction log rather than querying tables, so the overhead is usually small. It isn't nothing — log retention and replication slots need monitoring — so we measure it on your system during a trial run.
Related roles
Similar and adjacent roles
Add a Senior Database Migration Specialist to your team
Tell us the stack, the seniority you need and the hours you want covered. We reply within one business day, and you interview every engineer before they start.