We’re seeking a Senior Platform Engineer to join our dynamic platform engineering team. You care about system reliability, performance, security, and developer experience as much as product delivery. In this role, you’ll lead efforts to scale and improve our infrastructure, devex, and observability, while contributing across the stack when needed

You’ll help us make thoughtful trade-offs, simplify where possible, and build a platform that supports both our growth and our mission to elevate early childhood programs through high-quality software

At Lillio, our Product & Engineering teams are a tight-knit unit. By using strong product creation methodologies and processes, and by working closely together, we imagine and create outstanding products that immediately make an impact in the lives of millions of educators, parents, and young children

Lead System Evolution: Drive technical decisions regarding infrastructure-as-code, CI/CD pipelines, and platform architecture to ensure long-term scalability

Operational Excellence: Lead the charge on system reliability and performance

Develop and support internal team tooling

Troubleshoot,



debug and resolve issues as part of a shared on‑call rotation. You take an active role in ensuring the operational health and stability of the system as a whole

Mentor and support your peers, including through compassionate code review

Knowledgeable about industry best practices and emerging trends

Collaborative, team‑oriented mindset

Bachelor’s degree in Computer Science or equivalent experience

Ambition to work hard in order to make an impact

Evidence of independence and self‑starter attitude

Proficiency with Terrarform, Ruby on Rails, GraphQL, React

Demonstrated technical or project leadership experience

5+ years of software engineering/devops experience at scale

Hands‑on experience with observability and reliability tools like Datadog, New Relic, Papertrail, Sentry or Prometheus to monitor system health

Experience with AWS, RDS (Postgres), Heroku, Redis

Contributions to Open Source software

Experience with mobile app development

Experience with SOC2/GDPR/ISO27001 compliance

Experience with current AI tooling

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📌 Senior Platform Engineer (Quebec City)
🏢 Lillio
📍 Quebec City