MySQL Expert

Dyflexis; Den Haag; On-site; EUR 66,000 - 79,000; Full time

Benefits offered by this job

Fixed salary up to €6,500 gross per月

Personal development budget

25 vacation days plus your birthday

In-house chef lunch

Parties, drinks and trips

ARJ Training boxing gym membership

Pension plan and 8% holiday allowance

Buy or sell vacation days

Travel allowance and WFH compensation

Friday chair massages

Job summary

Dyflexis is seeking a MySQL Expert to keep production databases fast, stable, and scalable. You’ll work with the Platform team and developers to ensure the database is designed from the start and kept in sync with product growth.

You’ll own performance, migrations, and evolving infrastructure, collaborating across teams to raise data quality and reliability at scale. This role offers a generous Dutch salary and benefits package.

Qualifications

• 5+ years of experience as a database engineer (MySQL).
• Experience in fintech, HR tech, SaaS, or ticketing/ordering platforms is a plus.
• Deep expertise in MySQL, with solid experience in at least one other Database Management System (PostgreSQL/Oracle/MSSQL).
• Familiarity with PHP to read and review how developers write queries.
• Excellent written and spoken English.

Responsibilities

• Own production database performance: review and optimize queries, indexing, and execution plans using MySQL.
• Run migrations across our database clusters, including working with Atlas.
• Improve and evolve our database infrastructure, including scaling strategies like sharding and partitioning, as we restructure how our systems are set up.
• Write and maintain the standards that keep database work consistent across teams, from data modelling to how migrations get done.
• Handle regular database maintenance, from monitoring and mutations to schema changes.
• Review merge requests and PHP code for how they touch the database and join project kick-offs to shape the database approach early.

Skills

MySQL

PHP

English

Fintech

Tools

Atlas

PostgreSQL

Oracle

MSSQL Server

Job description

At Dyflexis, we help millions of employees worldwide with our workforce management software. From the bakery around the corner to international hotel and retail chains. The software is powerful, customer questions are diverse, and no two days are the same. You'll get to know the product inside out and contribute to something that's growing rapidly in more than 20 countries.

How do we do it? We work in a fast-paced environment with short communication lines. There are no unnecessary meetings and no politics. Our Focus? Ownership, clear communication, and getting things done together. We move quickly, learn by doing, and continuously improve. As our MySQL Expert, you’ll keep our complex database fast, stable, and ready to scale, while helping developers understand the impact of their queries on performance.

This is what you’ll do

You’re responsible for the performance, stability, and scalability of our database infrastructure, spread across multiple clusters. You’ll review and optimise queries, oversee migrations, and make sure our infrastructure keeps up as we grow, all while raising the bar on how we manage data internally. You’ll work closely with our Platform team, and with developers directly to make sure the database side is considered from the start.

• Own production database performance: review and optimize queries, indexing, and execution plans using MySQL.
• Run migrations across our database clusters, including working with Atlas.
• Improve and evolve our database infrastructure, including scaling strategies like sharding and partitioning, as we restructure how our systems are set up.
• Write and maintain the standards that keep database work consistent across teams, from data modelling to how migrations get done.
• Handle regular database maintenance, from monitoring and mutations to schema changes.
• Review merge requests and PHP code for how they touch the database and join project kick-offs to shape the database approach early.

This is what you’ll need

• 5+ years of experience as a database engineer (MySQL), ideally across large or complex databases.
• Experience in fintech, HR tech, SaaS, or ticketing and ordering platforms is a plus. A relevant certification helps too, though it’s not a requirement.
• Deep expertise in MySQL, with solid experience in at least one other Database Management System. Postgres, Oracle, or MSSQL Server are all a plus.
• Familiarity PHP skills, enough to read and review how developers write queries and loops.
• Excellent written and spoken English. You can communicate clearly enough so that there’s no room for misinterpretation.

What you'll get

At Dyflexis, you'll be part of an ambitious, energetic, and customer-focused team. We offer:

• Fixed salary up to €6,500 gross per month based on a 40-hour week (experience based).
• Personal development budget to level up your skills.
• 25 vacation days plus your birthday off in exchange for cake.
• An in-house chef surprising you daily with fresh lunch.
• The best parties, drinks and trips (Winter sports, Ibiza and more).
• Membership at ARJ Training boxing gym (home of champion Tarik and Levi Rigters).
• Solid pension plan and 8% holiday allowance.
• Buy or sell vacation days, you decide.
• Travel allowance and WFH compensation.
• Friday chair massages to kick off your weekend.