Senior DevOps Engineer

For this position we are considering candidates based in Czechia and Slovakia.

🌍 Global SaaS Company | $28M Series B Investment | 100% Remote or Hybrid

🚀 #1 AI business communication platform

About CloudTalk

Powered by a January 2024 $28 million Series B investment from top investors like KPN Ventures, Lead Ventures, Point 9, and HenQ, CloudTalk's AI-powered business communication platform helps 4,000+ sales and support teams make customer experience the greatest competitive advantage for driving more revenue.

CloudTalk works seamlessly for businesses of all sizes, from scale-ups like Deel to big players like Nokia, Glovo, and Rakuten. Modern businesses all around the world can lead meaningful conversations while managing calls and messages from one place.

CloudTalk is on a mission to create a unified ecosystem for sales and customer service teams' communication where every professional can engage in more productive and meaningful conversations.

The Challenge Ahead:

With the newly built, fully Infrastructure-as-Code (IaC) platform in place, the Infrastructure Team is now focused on operating, improving, and scaling it. The challenge ahead lies in hardening reliability, enhancing observability, and refining automation to remove remaining manual gaps. While best practices are already embedded, there’s still room to drive maturity. We’re looking for an engineer who would thrive in continuous improvement, can spot weaknesses, and enjoy building infrastructure that’s both robust and elegant.

In addition, we are increasingly investing in the scalability and performance of our data layer. As our platform grows, we need stronger expertise in database operations — from scaling core database systems, improving reliability under load, and optimizing query performance. Supporting teams in diagnosing slow queries and designing resilient database architectures is becoming a key part of our infrastructure roadmap.

What you will do:

• Design, build, harden, and maintain the core infrastructure used by all of CloudTalk’s engineering teams running in AWS
• Help developers with finding and optimising critical database queries and tweak database servers
• Automate every aspect of our infrastructure to remove any human intervention as much as possible
• Design and deploy new services into Kubernetes cluster (AWS EKS)
• Participate in team brainstorming sessions to define future of CloudTalk’s infrastructure
• Implement security policies across cloud-based infrastructure
• Optimize existing services to achieve better performance
• Develop effective tooling, alerts, and response to both identify and address reliability risks
• Drive and promote protocols on production readiness and operational excellence
• Partner with product engineering teams to debug production outages and carry out action items to improve the reliability of those systems
• Participate in design reviews and production reviews for new features, products, or pieces of infrastructure
• Plan for the growth of CloudTalk’s infrastructure

What we are looking for:

• Knowledge of AWS
• Knowledge of Kubernetes

• Experience with optimising database systems (MariaDB, MongoDB, PostgreSQL, ...)
• Knowledge of Bash scripting
• Managing 24/7 production infrastructure and Kubernetes clusters (AWS/GCP...)
• Understanding of modern development and operations processes and methodologies
• Experience with Linux administration
• Experience with CI/CD management (Argo project)
• Experience with configuration management (e.g. Terraform, Ansible, Helm, Docker, ...)
• Knowledge of GitOps principles is nice to have (e.g. ArgoCD)
• Experience with monitoring stack (preferably Prometheus, Grafana, Alertmanager), configuration of monitoring rules, creating dashboards, etc.
• Understanding of the DevOps/SRE philosophy

Some of your attributes are:

• Good at problem-solving and debugging
• Can-do approach
• Passionate about new technologies and not afraid to try them out
• Desire to constantly improve infrastructure, internal components and whatever that you see as a problem
• You dislike temporary solutions
• Learning mindset

Our Tech Stack:

• Kubernetes (EKS), Amazon AWS, MongoDB, MariaDB, Redis, Cloudflare, Terraform (Cloud), ElasticSearch, Kafka, Ansible, Prometheus, Datadog, Sentry, ArgoCD, Argo Workflows

Why you will love to be a CloudTalker:

Growth:

💡 1-1 Coaching sessions with our resident communications advisor
📚 Leaders Academy & Learning and Development Budget

Flexibility:

🏖 Unlimited Paid Time Off

🎗️ Volunteering Days

⏳ Flexible working hours

🤩 Home office budget

💻 MacBook for work

Well-being:

🏖Recharge Fridays once per quarter

🏋🏼‍♀️Fitness Allowance

Connectedness:

💲 Referral bonuses

👥 Virtual & physical team buildings

👕 Company merchandise

What to expect from the hiring process:

1. Call with our Talent Acquisition Team
2. 30-min Intro Call with our Infrastructure Team Lead
3. 90-min Technical Interview with Assignment Presentation

4, Culture Bar Raiser Call and Offer

By submitting your application, you acknowledge that Cloudtalk will process your personal data based on Cloudtalk’s legitimate interest in finding the most suitable candidate and a pre-contractual relationship with you. For more information on how Cloudtalk processes your personal data, please refer to our Privacy Notice.