# Senior DevOps Engineer at Railsware > Remote · region unclear · Senior · DevOps / SRE / Infra · open. Source: https://alderhq.app/jobs/greenhouse%3Arailsware%3A4951385101 (read 2026-11-11). ## Facts (observed) - Company: [Railsware](https://alderhq.app/companies/railsware) - Location text: remote; Remote - Where it can be done from (inferred): Remote · region unclear (evidence: "Location: remote; Remote") - Posted: 2026-08-13 (90 days ago) - First seen by alder: 2026-11-07 · last verified: 2026-11-07 - Reposted: 0 times · edited: 0 times - Apply on the employer's site: https://job-boards.eu.greenhouse.io/railsware/jobs/4951385101 - Skills listed (inferred): Python, Ruby/Rails, PostgreSQL, Redis, Kafka, Elasticsearch, AWS, GCP, Kubernetes, Docker, Terraform ## Pay and sponsorship - Posted pay: not posted ## Description (the employer's text) 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. You will also lead a key strategic initiative: planning and executing a partial migration of selected workloads from AWS to rented bare-metal / colocation infrastructure to cut costs — a hybrid-by-design effort, not a full cloud exit. You will decide what moves and what stays, design the target platform (likely Kubernetes or a similar orchestrator on bare metal), and own the migration end to end, from business case to cutover. 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) - Proven experience planning and executing migration to on-prem, colo, or private cloud (partial/hybrid OK — full exit not required) - 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 - Colo/bare-metal ops: IPAM (NetBox), Ansible, image-based provisioning (Packer or equivalent), HAProxy/Nginx - 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 ### Responsibilities day-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 - Maintain the hybrid estate (AWS and rented bare metal) as one operable platform ### 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 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 --- Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/greenhouse%3Arailsware%3A4951385101 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.