Stack: Linux, Kubernetes (Helm), PostgreSQL, MongoDB, CI/CD (GitlabCI, Bitbucket Pipelines), Cloud infrastructure (OVH, bare-metal, OpenStack), IaC (Terraform, Ansible)
Company description
Textmagic AS is a publicly traded SaaS company listed on Nasdaq First North Tallinn. Our core product is a business messaging platform that enables companies to send A2P SMS and email communications. Trusted by over 25,000 businesses globally, our platform handles high-volume, time-sensitive messaging at scale.
Our team of 50+ professionals is distributed across Estonia (our headquarters), Romania, Ukraine, Serbia, and Montenegro. We offer a flexible, remote-friendly work environment that values ownership, reliability, and clear communication. You’ll be part of a lean, highly skilled team focused on building and supporting products used daily by thousands of businesses worldwide.
Role overview
We’re looking for a Senior DevOps Engineer to take ownership of the infrastructure behind textmagic.com  — a global SaaS messaging platform with main customers in the US, Canada, Australia, and the UK. Your main focus will be ensuring platform performance, stability, and scalability as we continue to grow. You’ll manage cloud infrastructure, improve CI/CD pipelines, and work closely with developers to deliver fast and reliable product updates. This is a key role with real impact—your work will directly affect the experience of thousands of businesses that rely on our product daily.
Key responsibilities
- CI/CD automation: Design, build, and maintain robust CI/CD pipelines to automate testing, code quality checks, and deployments across multiple environments
- Cloud infrastructure: Manage and scale cloud infrastructure (we use OVH) to ensure reliability, security, and performance
- Infrastructure as Code (IaC): Use tools like Terraform or similar to provision and manage infrastructure in a structured, version-controlled way
- Monitoring and alerting: Set up and maintain monitoring, logging, tracing, and alerting systems (Zabbix, Prometheus, Loki) to ensure visibility and proactive issue detection
- System security: Implement infrastructure-level security practices and participate in protecting services from DDoS and malicious traffic using tools like Cloudflare and fail2ban
- Collaboration with development: Work closely with engineering teams to investigate production issues, improve service uptime, and support the full development lifecycle (local, staging, production)
- Tooling and automation: Develop internal tools and scripts to automate routine tasks and improve developer efficiency
- Database operations: Manage and optimize production-grade databases (PostgreSQL, MongoDB) for availability, scalability, and low latency
- Environment management: Maintain and support multiple environments, ensuring consistency and reliability across dev, staging, and production setups Expected qualifications
- Strong Linux system administration experience for web applications
- Hands-on experience with Kubernetes and a clear understanding of when and why to use it
- Solid understanding of virtualization vs. containerization
- Good knowledge of networking (L2, L4, L7) and tools like tcpdump, ngrep, and iproute2
- Experience supporting full application lifecycle (prod/dev/staging/local environments)
- Familiarity with version control (Git, Gitlab) and issue-tracking tools (Jira)
- CI/CD experience: building systems and designing workflows
- Strong experience with databases, including PostgreSQL, MongoDB
- Infrastructure as Code (IaC) experience and understanding of best practices
- Experience installing and managing email servers
- Knowledge of monitoring (Zabbix, Prometheus) and log processing systems (Loki)
- Experience with config management tools (Ansible, Puppet, Chef, or Salt)
- Fluent in both English and Russian Nice to have
- Background in telecom systems or messaging services (e.g. SMPP, Asterisk, Kamailio)
- Experience with PostgreSQL clustering
- Programming or scripting skills in Bash, Go
- Experience with Kubernetes in production at scale
- Familiarity with mitigating malicious traffic and managing DDoS protection
- Understanding of backend and frontend technologies such as PHP, Node.js, or Webpack

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