Customer.io

Listing 6 positions with a Dublin presence, jobs at Customer.io span software engineering, site reliability, sales, and customer success at a messaging automation platform used by thousands of companies to send targeted emails, push notifications, SMS, and in-app messages. As a remote-first company with a strong EMEA base in Dublin, Customer.io offers the technical depth of a product-led SaaS business with the flexibility of a distributed team.

Engineering roles anchor the listings. The Senior Software Engineer, Full Stack and Senior Software Engineer, Backend positions build and scale the core messaging platform — the systems that process billions of customer interactions monthly. If you're wondering what the tech stack involves, jobs at Customer.io reference Ruby, Go, Elasticsearch, PostgreSQL, Redis, Kafka, and cloud infrastructure (AWS) — a high-throughput, event-driven architecture designed for reliability and performance at scale.

The Senior Site Reliability Engineer ensures the platform's uptime and performance across its distributed infrastructure. This role involves monitoring and observability (Datadog, Prometheus), incident response, capacity planning, and infrastructure automation — the operational backbone of a platform where delivery speed and reliability directly impact customer revenue.

On the commercial side, the Mid-Market Account Executive, EMEA drives new business acquisition across the European market, while the Account Manager, EMEA (listed as a 2026 opportunity) focuses on expanding relationships with existing customers. These roles suit B2B SaaS sales professionals with experience in marketing technology, customer engagement platforms, or messaging infrastructure — and a track record of selling to product and marketing teams.

The Contract Customer Success Manager, EMEA works with mid-market and enterprise customers to ensure they're realising value from the platform — a role that blends technical consultancy with relationship management and involves onboarding, adoption analysis, and expansion planning.

For professionals exploring jobs at Customer.io, the company's remote-first culture, product-driven engineering environment, and Dublin EMEA hub offer a compelling alternative to larger marketing cloud vendors — with the ownership and impact typically found in a growth-stage SaaS company.