Database Administrator

Who we need

Reporting to the Director of Infrastructure, Operations, and Security, our growing engineering team seeks a Database Administrator – MySQL to architect, manage, and optimize our Percona-based MySQL clusters in a high-throughput, ultra-low-latency environment. The successful candidate will demonstrate mastery in query tuning, high availability design, and database automation, supporting mission-critical services without reliance on public cloud infrastructure. You will be responsible for a multi‑master, multi‑cluster on‑prem architecture, ensuring stability, performance, and scalability across all environments.

This is a full-time, hybrid opportunity working Mondays, Tuesdays, and Thursdays in our downtown Toronto office. Our headquarters are located within minutes of St. Andrew and Union subway stations.

What is in it for you

Impact and influence. As part of a small team within a publicly traded, product‑led company, you will play a pivotal role in optimizing our on‑premises database systems to add redundancy and resiliency in a multi‑data‑centre environment. You will lead the design and implementation of new management solutions that improve performance, stability, and observability across our infrastructure.

Technical exposure. Our platform processes nearly 150 billion requests daily, driving programmatic traffic globally across all devices, streaming services, and out‑of‑home targeted advertising. Working with data and infrastructure at this scale is a rare opportunity. This is a chance to apply your expertise in distributed systems, high‑throughput database operations, and infrastructure automation to support the evolution of a scalable, real‑time AdTech platform.

Professional development. You want to grow your skills, your influence, and your career. We push the limits to improve and to reach our full potential, individually and as a company. We are committed to building the strengths of our team. You will be supported by your manager and have access to one‑on‑one coaching with our Chief Empowerment Officer team. Your accountabilities, learning opportunities, and scope for ownership and career growth will rapidly expand as we continue to step up to meet the increased value and shifting needs of AdTech.

How you will make an impact

• Architect. You will design, operate, and optimize multi‑master MySQL Percona clusters to meet strict SLAs for throughput, latency, and uptime. You will define and implement replication topologies across multiple data centres to ensure consistency, fault tolerance, and seamless failover.
• Troubleshoot. You will diagnose and resolve complex locking, replication, transaction conflicts, and query performance issues under high load. You will identify and address root causes quickly to maintain system stability.
• Manage databases. You will be responsible for the health, maintenance, and performance of our MySQL environments. You will oversee schema migrations, plan and execute backup strategies, and maintain disaster recovery processes to minimize service disruptions.
• Automate. You will script database tasks using Python, Bash, or similar tools to automate routine processes, reduce manual effort, and improve efficiency across environments.
• Monitor. You will proactively monitor database health and performance using PMM and Netdata. You will detect trends, address anomalies, and prevent failures before they impact operations.
• Collaborate. You will work closely with developers to improve schema design and optimize application queries. You will analyze execution plans and indexing strategies to support performance at scale.
• Improve processes. You will maintain and continuously enhance database lifecycle practices across development, staging, and production environments, ensuring consistency and reliability.
• Ensure security. You will enforce security and compliance protocols, including encryption, auditing, and access control. You will ensure all data is protected and handled in accordance with company policy.

What you bring

What else should you know about us?

We are undergoing a transformative shift. We are embracing change and the opportunities that come with it, empowering every illumineer to innovate, experiment, and bring forward new ideas. Whether accessing new technology, restructuring workflows, or expanding your team, you will have full support if you can make the business case.

Apply now

If you want to seize the opportunity to impact a company and influence an industry, and you have 70% of what we are looking for, apply now. We can't promise an interview, but we will consider your whole application.

What you can expect from our interview process :

illumin is firmly committed to diversity within its community and welcomes applications from racialized persons / persons of colour, Indigenous People of North America and the world, persons with disabilities, 2SLGBTQIA+ persons, and those who may contribute to the further diversification of ideas.

We are committed to providing equitable opportunities in employment and to providing a workplace which is free from discrimination and harassment. We are equally committed to providing an inclusive and accessible workplace. If you require accommodations at any stage of the interview process, please email us at hr@illumin.com .

#LI-Hybrid

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Information Technology

Industries

Advertising Services

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