Overview In this role you own and optimize Metricool’s Mautic infrastructure hosted on AWS, delivering high-scale email sending through Amazon SES. You’ll collaborate with cross-functional teams to move from firefighting to a stable, scalable system and contribute to our data platform roadmap. You’ll own system performance, reliability, and deliverability, with a focus on process improvements and documentation. This is a remote role with strong ownership and a mission to build robust, scalable infrastructure. Compensaciones / Beneficios * Fully remote * 100% adaptable schedule * Health insurance * Language lessons (EN/ES/FR/DE) * Annual in-person Epic Weekend * Competitive salary (40k–47k) Responsabilidades * Optimize Mautic infrastructure, MySQL databases under heavy load, and queues (RabbitMQ) to support millions of emails daily * Improve Mautic processing (segments, campaigns, sending jobs) to ensure daily updates and fast sends * Maintain system stability by monitoring, troubleshooting, and scaling to ~3M emails/day * Tune deliverability settings (SPF/DKIM/DMARC, bounces,



complaints) and handle incident response during sends * Triage and respond to Marketing/Product requests; reproduce, fix, and communicate outcomes * Maintain and evolve Mautic’s PHP/Symfony plugins and modules; write documentation and runbooks * Contribute to data platform efforts (ClickHouse, Python pipelines, Go services, Aerospike) in the medium term Requisitos principales * Location: Spain * Senior experience (≥5 years) in systems, infrastructure, or technical operations * Background as senior technical support in hosting environments; servers, Linux, DNS, networking, email sending, domain reputation and security * Proven MySQL optimization under heavy load * English fluency (min B2); Spanish preferred * PHP with Symfony; AWS (EC2, SES) experience; email-sending infrastructure experience * Problem solving with a strong service mindset * Clear communication with non-technical teams * Calm and

📌 Senior Technical Operations Engineer (Barcelona)
🏢 Team.Blue
📍 Barcelona