Senior DevOps Engineer

Job Title: Senior DevOps Engineer

Location: Sofia
 

Overview of the Role

Each tribe consists of squads (typically 5–8 engineers) responsible for delivering features, services, and platform capabilities within their technical domain.

As a DevOps Engineer, you will design, automate, and maintain the infrastructure, CI/CD, cloud orchestration, and deployment tooling that drive reliability, scalability, and engineering velocity. You will collaborate closely with software engineers, QA, architects, and product teams to ensure secure, predictable, and efficient delivery across environments.

You will be hands-on—building infrastructure with Terraform, deploying workloads via Helm charts, managing Kubernetes/EKS/ECS clusters, optimizing pipelines, and improving overall engineering systems.

What You’ll Do

Engineering, Automation & System Ownership

• Design, maintain, and optimize CI/CD pipelines using GitHub Actions, Jenkins, and other automation tools.

• Build and manage cloud infrastructure using Terraform (IaC for AWS, VPC, ECR, networking, IAM, policies, autoscaling).

• Deploy and maintain containerized applications using:

  • Kubernetes

  • AWS EKS/ECS

  • Helm charts for packaging, versioning, and rolling out workloads

• Implement and evolve Kubernetes standards for namespaces, ingress, RBAC, resource limits, autoscaling (HPA/VPA), and monitoring.

• Optimize container build pipelines (Docker, multi-stage builds, security scanning, caching).

• Collaborate with developers to enhance build systems, testing frameworks, and optimized deployment workflows.

• Use GitHub and Git-based workflows (branching, PR policies, automation triggers) to ensure code and pipeline quality.

• Troubleshoot issues across infrastructure, pipelines, deployments, clusters, and cloud environments.

• Participate in on-call rotations for production support and incident response.

• Ensure compliance with security, audit, and regulatory standards in infrastructure and deployments.

Foster a Sustainable & Scalable Engineering Culture

• Contribute directly through coding, scripting, automation, Terraform modules, Helm chart creation, cluster configuration, and performance tuning.

• Work with tools and technologies including:
  GitHub, GitHub Actions, Helm, Terraform, Kubernetes, AWS EKS, AWS ECS, Jenkins, BitBucket, Grafana, Prometheus, Logstash, CloudWatch, Nginx, Kafka, Ubuntu
  and languages such as Java, JavaScript, NodeJS, PHP, Go, Groovy

• Promote DevOps best practices:

  • Infrastructure as Code (Terraform)

  • Kubernetes management

  • Reusable Helm charts and pipelines

  • Zero-downtime deployments

  • Automated rollbacks and progressive delivery

• Drive adoption of technical enablers such as:

  • GitHub Actions workflows

  • Protected branches, PR approvals, automated checks

  • Terraform modules & pipelines

  • Helm chart repositories and versioning

  • EKS/ECS deployment automation

  • Static analysis & security scanning

  • Monitoring, logging & alerting using Grafana, CloudWatch, Prometheus, OpenTelemetry

• Contribute to engineering documentation, playbooks, standards, and knowledge sharing.

• Support backlog refinement to balance feature work with infrastructure and operational improvements.

Champion Quality & Continuous Improvement

• Participate in planning, estimation, and prioritization of DevOps and cloud infrastructure tasks.

• Build resilient, secure, scalable infrastructure using Terraform, Helm, and Kubernetes best practices.

• Improve deployment reliability, scalability, and performance across EKS/ECS clusters.

• Lead diagnostics, incident resolution, root cause analysis, and remediation follow-up.

• Collaborate with QA, Architecture, Product, and Software Engineering to ensure system quality.

• Ensure the Definition of Done includes documentation, tests, observability, IaC updates, and deployment validation.

• Promote experimentation, innovation, automation, and internal knowledge-sharing initiatives.

Stakeholder Collaboration & Communication

• Act as a key technical partner for engineering, QA, architecture, and product teams.

• Communicate infrastructure changes, risks, and dependencies clearly and transparently.

• Participate in design reviews and architecture discussions, especially regarding cloud, Kubernetes, and deployment approaches.

• Ensure DevOps practices align with business, architectural, and platform objectives.

What You’ll Bring

Experience & Technical Skills

• 6+ years of experience in DevOps, cloud engineering, platform engineering, or supporting modern distributed systems.

• Strong hands-on experience with:

  • Terraform (modules, state management, backend configs, AWS resource provisioning)

  • Kubernetes (deployments, services, ingress, RBAC, autoscaling, troubleshooting)

  • AWS EKS (cluster provisioning, workload deployment, networking, scaling, security)

  • AWS ECS (task definitions, services, Fargate, scaling, health checks)

  • Helm (chart authoring, templating, packaging, versioning, automated deployments)

• Solid experience with GitHub & GitHub Actions automation.

• Proficiency with CI/CD concepts, pipelines, artifact management, and automation patterns.

• Strong understanding of AWS cloud services and cloud-native application architectures.

• Experience with observability tools (Grafana, Prometheus, CloudWatch, Elasticsearch, Logstash, OpenTelemetry).

• Proficiency with Linux environments

• Knowledge of containers, Docker, networking fundamentals, and security best practices.

• Experience in Agile/Scrum environments.

• Proficiency with Jira & Confluence.

• Advanced English proficiency.

Personal & Professional Competencies

• Strong ownership, independence, and delivery mindset.

• Proactive problem-solving approach with a focus on stability and performance.

• Excellent communication and cross-team collaboration.

• Ability to adapt to changing priorities and operate in dynamic environments.

• Solid organization and time management abilities.
   

• Why choose us:

  Aside from a generous base salary, we have a fantastic benefits & rewards program that is designed to encourage personal and career development.
   

• 30 days paid leave

• Health and Dental Insurance for you, your partner and your children (if you all live at the same address)

• Personal life insurance and disability coverage

• Wellbeing fund

• A sports’ card membership valid across the country

• Discounts as a compliment form us among different services

• Monthly food vouchers

• Free snacks, fruits and drinks in the office
  Equal opportunities:
  At Flutter we are committed to creating an inclusive environment where our people can be their authentic selves and thrive. We embrace and celebrate diversity, respecting all our uniqueness and differences.
  We welcome you to let us know whether you have any accessibility needs. All you need to do is email us at  [email protected]  .  Your journey with us is focused on ensuring you have what you need to be your best self.
  Learn more about the works we are doing on Inclusion and Belonging here:  https://careers.flutterinternational.com/working-at-flutter-international/diversity-equity-inclusion/
  The group:
  Flutter CEE is a proud member of the Flutter Entertainment family, a global leader in sports betting, iGaming, and entertainment. We're not just another company; we're listed on both the prestigious FTSE 100 index on the London Stock Exchange and the New York Stock Exchange (NYSE). What sets us apart is our world class brands, cutting-edge products, and our International division includes our operations in over 100 global markets and offers sports betting, casino, poker, rummy and lottery, mainly online. What truly defines us is our commitment to ensuring that the excitement of gaming and entertainment is experienced in a responsible and sustainable way. Our remarkable team of over 8,000 colleagues drives this vision, spread across 28 offices worldwide.