Senior DevOps Engineer

We are looking for a Senior DevOps Engineer to join our team!

You will own and evolve Mailtrap's production infrastructure — a multi-region AWS platform powering high-volume email sending and testing. You will keep it reliable, secure, and cost-efficient day-to-day.

Our engineering team thrives in an agile, continuously improving, and automation-oriented environment. We value ongoing evolution, objective evaluation of our processes, and taking action to make things better.

What are we looking for?

Must-have skills:5+ years DevOps/platform (senior), production ownership

Deep AWS (VPC, ECS, IAM, RDS/Elasti

Cache or equivalents, networking)

Terraform at scale (modules, remote state / Terraform Cloud)CI/CD with GitHub Actions, including automated deploys to production (e.g. blue/green deployments)

Containers (Docker); comfortable operating services on ECS or K8sStrong Linux networking (DNS, TLS, load balancing, firewalls, VPN/hybrid)

Comfortable owning a multi-quarter infra initiative: TCO, design, vendors, cutover, rollback

Comfortable automating operational tasks with shell and/or Python

Fluent English (both spoken and written)

Strongly preferred:

Replacing managed AWS services with self-hosted (Postgres HA, Redis/Valkey, Kafka, Open

Search)

Email infrastructure (MTA, SMTP, IP reputation, DKIM/SPF/DMARC) — Halon or similar

Cloudflare (DNS/WAF/Access)

Observability beyond CloudWatch (Prometheus/Grafana/Loki or equivalent)

Prior work with multi-region SaaS or EU data residency

• Cost-driven architecture / Fin
• Ops mindset
• Would be a plus:

GCP (BigQuery/certificates)

Comfortable reading Ruby or Go (used in our services and tooling)AWS Certificates Experience planning or/and executing migration to on-prem, colo, or private cloud (both partial or hybrid)

Colo/bare-metal ops: IPAM (NetBox), Ansible, image-based provisioning (Packer or equivalent), HA

Proxy/Nginx

ResponsibilitiesDay-to-day:

Operate and evolve AWS multi-account / multi-region infra

Terraform modules/workspaces

Ensure safe infrastructure changes across network, storage, and services, with zero-downtime deployments.

ECS services, blue/green deploys, Docker image pipelines

• Reliability: CloudWatch/PagerDuty/Sentry, capacity, cost tags
• Security baseline: IAM, secrets (SSM), Cloudflare edge rules
• Partner with engineers on release automation and production readiness
• Migration leadership:

Build the business and technical case for what moves off AWS vs what stays

Design the rented bare-metal / colo landing zone (compute, network, storage, observability, secrets)

Produce migration waves, dependency maps, cutover/rollback plansStand up hybrid connectivity and dual-run periods; shift traffic safely (e.g. via Cloudflare)

Replace or re-home managed services where it pays off (compute, queues, search, cache, MTA nodes)

Coordinate colo/vendors, timelines, and eng teams; report progress and risk