Platform Engineer (Senior)
Prague - Czech Republic
Job Summary
Job Description
We are looking for a Platform Engineer to join our DevEx Platform team. You will help build and operate the internal platform that other engineering teams depend on GitOps delivery a Kubernetes-based runtime infrastructure automation and developer self-service.
This is a role for builders. We need someone who picks up a mission drives it across teams and ships outcomes not tickets. You will work shoulder-to-shoulder with CloudOps DevSecOps FinOps and SRE and use AI and agentic AI as everyday tools to accelerate everything you do. We expect AI fluency not curiosity.
Who You Are
A team player who builds with people not around them
Assertive and decisive you propose defend and drive technical direction
Mission-driven you finish what you start
AI-native you use AI assistants and agentic workflows daily to multiply your output
What Youll Do
Build and operate the internal platform: GitOps delivery Kubernetes runtime infrastructure automation and developer self-service
Use AI coding assistants and agentic workflows to automate platform tasks investigation remediation documentation scaffolding
Operate ArgoCD as a core platform capability: GitOps workflows multi-environment delivery ApplicationSets progressive delivery
Maintain and extend Infrastructure as Code (Terraform / OpenTofu) for platform components
Manage the GitHub organization as a platform service: reusable Actions workflows branch and environment protections OIDC to AWS CI bots and Copilot org policies
Operate JFrog Artifactory as the artifact backbone: registries retention promotion and vulnerability scanning
Design and troubleshoot AWS networking across multi-VPC topologies
Collaborate with CloudOps DevSecOps FinOps and SRE; mentor and bring new tools and patterns to the team
What Youll Bring
Required:
7 years in Platform Engineering SRE or closely related roles
Platform mindset you build platforms and self-service capabilities not a ticket queue
Hands-on daily use of AI coding assistants and agentic AI workflows
AWS proficiency: EKS IAM S3 RDS Lambda CloudWatch
AWS networking: VPC subnets CIDR planning route tables security groups peering / Transit Gateway VPC endpoints Route53 confident designing and troubleshooting multi-VPC topologies
Kubernetes: strong operational proficiency deploying troubleshooting and instrumenting workloads
ArgoCD & GitOps: multi-environment deployments ApplicationSets progressive delivery
Terraform / OpenTofu
CI/CD pipeline design (Azure DevOps GitHub Actions or both)
GitHub as a platform: org/team/repo administration reusable Actions workflows OIDC to AWS CI bots Copilot org policies
Artifact management: JFrog Artifactory or directly comparable (Nexus GitHub Packages at scale)
Scripting: Python Go Bash or similar
Big advantages:
IDP tools (Port Backstage)
Crossplane for Kubernetes-based infrastructure management
Argo ecosystem depth (Rollouts Workflows Events)
SRE practices (SLOs/SLIs error budgets incident response) and DORA metrics
Experience building or operating internal AI-powered developer tools
A plus:
Observability (Datadog OpenTelemetry Prometheus & Grafana)
Service mesh (Istio Linkerd) FinOps Policy as Code (OPA Kyverno)
Certifications: CKA/CKAD AWS Solutions Architect / DevOps / Advanced Networking HashiCorp Terraform
If you are a team player assertive mission-driven and you build with AI as a daily partner your place is with us.
What We Offer
Exciting work in a great team global projects international environment
Opportunity to learn and grow professionally within the company globally
Pension and health (Canadian Medical) contributions
Internal reward system plus referral program
5 weeks annual leave 5 sick days 15 days of certified sick leave paid above statutory requirements annually 40 paid hours annually for volunteering activities 12 weeks of parental contribution
Cafeteria for tax free benefits according to your choice (meal vouchers sport culture health travel etc.) Multisport card Vodafone Raiffeisen Bank and Foodora discount programs
Up-to-date laptop and iPhone parking in the garage showers refreshments
Competitive salary incentive pay and many more
Ready to take up the challenge Apply now!
Know anybody who might be interested Refer this job!
The date shown below is the earliest possible closing date for this posting. However we sometimes extend the job posting period as needed so please feel free to apply anytime you see the Apply button may also reach out to the recruiter directly via Skills:
Amazon Web Services (AWS) Argo CD Artificial Intelligence (AI) CI/CD GitHub GitOps JFrog Artifactory Kubernetes Platform Engineering Scripting Site Reliability Engineering Terraform (Software)Preferred Skills:
Service Mesh Architecture SRE ObservabilityCurrent Employees apply HERE
Current Contingent Workers apply HERE
Search Firm Representatives Please Read Carefully
Merck & Co. Inc. Rahway NJ USA also known as Merck Sharp & Dohme LLC Rahway NJ USA does not accept unsolicited assistance from search firms for employment opportunities. All CVs / resumes submitted by search firms to any employee at our company without a valid written search agreement in place for this position will be deemed the sole property of our company. No fee will be paid in the event a candidate is hired by our company as a result of an agency referral where no pre-existing agreement is in place. Where agency agreements are in place introductions are position specific. Please no phone calls or emails.
Employee Status:
RegularRelocation:
VISA Sponsorship:
Travel Requirements:
Flexible Work Arrangements:
HybridShift:
Valid Driving License:
Hazardous Material(s):
Job Posting End Date:
08/4/2026*A job posting is effective until 11:59:59PM on the day BEFOREthe listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.
Required Experience:
Senior IC
About Company
Merck & Co., Inc., Kenilworth, New Jersey, USA is known as “Merck” in the United States, Canada & Puerto Rico. We are known as “MSD” in Europe, Middle East, Africa, Latin America & Asia Pacific. We are a global biopharmaceutical leader with a diverse portfolio of prescription medicine ... View more