System Engineer | Email Team

Join the team building an AI-first company.Hostinger serves more than 5.5 million clients across 150 countries, but we're still excited about what we're creating next.AI is changing how we build products, support customers, work together, and solve problems. It helps us move faster, spend less time on repetitive work, and focus on bigger ideas.If you want your work to influence both what we build and how we build it, we'd like to meet you.Our culture: Guided by 10 company principlesYour role at HostingerAs System Engineer, you'll join one of the few places left where a single team owns the whole stack end to end - compute, storage, networking, and the services running on top of it. Email is what makes that infrastructure hard: it's stateful, latency-sensitive, adversarial, and it never stops. You'll join at a point where large parts of the platform are being modernized, so there's genuine architectural work ahead, not just maintenance of someone else's decisions. This isn't a role where you follow playbooks - you'll write them.Curious to learn more? Connect with your team: Edgaras Lukoševičius, Engineering Manager, Email Hosting.

• Strong Linux experience (5+ years) — deep and hands-on, not just comfortable at a shell.
• On-prem and cloud. We run most of our systems on our own hardware, with parts in the cloud (GCP, AWS, Cloudflare). We're looking for either a strong on-prem and virtualization background (Proxmox, KVM, bare metal) with cloud exposure, or a strong cloud background with real hands-on on-prem experience.
• Infrastructure as Code — Ansible, Terraform, or equivalents. You trust automation, and know how to do it right.
• Programming or scripting in Go or Python (bonus if both).
• Production experience with databases, caches, and queues — MySQL, PostgreSQL, Redis/Valkey, Memcached, or similar.
• Containers and orchestration — you've experience running workloads on Kubernetes and Docker
• Storage fundamentals — filesystems, distributed storage, replication (Ceph or similar) is a plus
• Networking fundamentals — DNS, TCP/IP, TLS, HTTP, and routing.

Nice to have

• Hands-on experience with an MTA at scale — Postfix, Exim, KumoMTA, GreenArrow, PowerMTA, ZoneMTA, or similar.
• Experience running an IMAP/mail store — Dovecot, Cyrus, or equivalent.
• Spam filtering and email security tooling — Rspamd, SpamAssassin, or similar.
• Understanding of email authentication and deliverability — SPF, DKIM, DMARC, ARC, rDNS, blocklists, feedback loops.
• Experience with IP reputation, warmup, or high-volume sending.
• Familiarity with data pipeline and analytics tooling — ClickHouse, Kafka/Redpanda, Flink.
• CI/CD beyond GitHub Actions, and open-source contributions.
• Certifications like RHCSA or RHCE.

• 360° Growth: You'll never stop learning here. Get access to and CoachHub, go to global conferences, and borrow from our physical and digital libraries.
• Freedom & responsibility: Work where you do your best work: our offices in Vilnius, Kaunas, Jakarta, or Luxembourg, your home, or anywhere in the world. You plan your own day and own your results, and good ideas go live fast.
• Wellness simplified: Your wellbeing comes first. You get time off to recharge, a subscription, and events focused on wellbeing. Depending on your location, you also get health insurance from day one, a gym membership, regular health checks, and clubs for sports, arts, and hobbies.
• Work hard – play hard: We celebrate wins together at & Summerfest, Town Halls, team-buildings, and workations. Meet the Client sessions connect you directly with the people you build for. Milestones outside work matter too, so we celebrate weddings, new parenthood, and graduations with you.