Senior DevOps Engineer @ Railsware

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.

Must-have skills

5+ years DevOps/platform (senior), production ownership
Deep AWS (VPC, ECS, IAM, RDS/ElastiCache 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 K8s
Strong 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, OpenSearch)
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 / FinOps mindset

Would be a plus:

• GCP (BigQuery/certificates)
• Comfortable reading Ruby or Go (used in our services and tooling)
• AWS Certificates
• Proven experience planning and executing migration to on-prem, colo, or private cloud (partial/hybrid OK — full exit not required)
• Colo/bare-metal ops: IPAM (NetBox), Ansible, image-based provisioning (Packer or equivalent), HAProxy/Nginx

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.

,(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, Maintain the hybrid estate (AWS and rented bare metal) as one operable platform, 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 plans, Stand 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) Requirements: AWS, DevOps, Terraform, Docker, IPAM, Cloudflare, FinOps, Ruby, Golang, AWS certificate, GCP certificate Additionally: Training budget, International projects, Free coffee, Bike parking, Free snacks, Free beverages, Free parking, Modern office, No dress code.