Hire MySQL developers
Senior MySQL developers who design and maintain high-traffic, MySQL-backed platforms and handle complex migrations. We test them on query optimisation, schema design, indexing strategy, replication, and how they verify AI-generated SQL before it runs.
01
AI writes SQL that looks correct but isn't
Engineers now produce queries faster with AI assistance, but MySQL's optimiser behaves in ways that AI tools frequently misread. A developer who can't verify the execution plan before running generated SQL creates slow or broken queries at scale.
02
Migration tooling has changed schema work
Tools like Flyway and Liquibase are now paired with AI-assisted diff generation, so engineers can draft migration scripts more quickly. The risk shifts to review: a developer must still read every generated statement and test it against a production-representative dataset.
03
Replication and HA setups demand more precision
AI-generated configuration for read replicas or Group Replication can miss edge cases in failover sequencing or GTID handling. Engineers who understand MySQL's internals catch those gaps; those who don't ship configurations that fail silently under load.
How we assess MySQL developers
Every engineer works through a fundamentals assessment with AI tools switched off and a second assessment with their own agents running. For MySQL developers, these criteria carry the most weight.
- AI output verification
The engineer is given AI-generated SQL for a multi-join query and must identify any index misuse, implicit type coercions, or optimiser hints that would degrade performance on a large MySQL table.
- Debugging
The engineer gets a slow-query log and a schema and must trace the root cause, whether it's a missing composite index, a full-table scan, or a locking issue introduced by a recent migration.
- Spec-driven development
The engineer receives a written migration spec with rollback requirements and must produce a versioned script that satisfies every stated constraint without introducing downtime on a live table.
Hiring with Miyagami
- One senior engineer, full-time, at a fixed monthly fee
- Employment, payroll and compliance included, no recruitment fee
Timeline
- Three-month minimum
- Wrong fit: we replace at our cost
What is Supabase?
Supabase is an open-source backend-as-a-service built on PostgreSQL, offering auth, storage, APIs, and real-time data without vendor lock-in.
What is Backend as a Service (BaaS)?
BaaS provides pre-built cloud infrastructure (databases, auth, storage, APIs) so teams ship apps without building or managing servers from scratch.
How to review AI-generated code
Reviewing AI-generated code changes some of what reviewers look for and keeps the rest. This entry covers both, plus the specific failure modes to check for.
Questions about hiring MySQL developers
How senior are the MySQL developers you place?
The MySQL developers we put forward have 6+ years' experience on average, and they've shipped and maintained production systems in MySQL. Every one has passed both assessments, and you see both scorecards before you meet them.
How do you test MySQL skills specifically?
The first assessment covers fundamentals in a real codebase: schema design, query optimisation, indexing, and debugging from a slow-query log, with no AI tools. The second assessment tests how they use AI agents and verify generated SQL before it runs.
How quickly can a MySQL developer start?
You'll have a shortlist within five working days. From shortlist to first commit is typically three weeks, covering final interviews and onboarding. We only do full-time placements, with a three-month minimum.
What does a MySQL developer cost?
You pay a fixed monthly fee of €5,600 to €8,000 per full-time engineer, with employment, payroll and compliance included and no recruitment fee. The pricing page compares it with the all-in cost of a senior local hire in your country. Engagements are full-time with a three-month minimum, and if a placement doesn't work out, we replace them at our cost.
Do they work in our tools and codebase or their own setup?
A full-time MySQL developer costs €5,600 to €8,000 a month. There's no recruitment fee and nothing upfront. If the fit is wrong, we replace them at our cost.
Get a shortlist within five working days
You share the roles and the stack in a short form or a thirty-minute call. Within five working days you get named senior engineers to review, each with both scorecards.
ISO 27001Certified