Sr. Cloud Platform Engineer

About Unlimit
Unlimit is the global fintech powerhouse behind the world's largest proprietary payments infrastructure.

Founded in 2009, Unlimit operates across 17 global offices with 700+ experts, seamlessly integrating 1,000+ payment methods into a single platform. From London to São Paulo, we empower businesses to scale across borders with a unified suite of financial tools — including payment processing, alternative payment methods, multicurrency business accounts, card issuing, banking-as-a-service, and crypto on- and off-ramps.

Our mission is to break down financial barriers and enable seamless money movement across borders. We give forward-thinking businesses the tools to accept, send, and manage payments effortlessly, wherever they operate.

We are looking for a Senior Cloud Platform Engineer to design, build, and scale the platform that powers our entire engineering organization. You will design and implement scalable, multi-region cloud infrastructure in AWS, create self-service capabilities, implement observability systems, and set the guardrails for reliability and security—ensuring our platform is resilient, compliant, and ready to support AI-driven innovation across Unlimit.

What You'll Be Doing

• At Unlimit, our platform is the foundation on which everything else is built—applications, services, and even AI-enabled solutions depend on it. As a Senior Cloud Platform Engineer, your first mission will be to design and implement multi-region AWS infrastructure that can scale reliably and securely to meet the demands of our fast-growing business
• From there, you will manage Kubernetes clusters at scale, define golden paths that enable developers to build and deploy quickly, and implement Infrastructure-as-Code and GitOps workflows that make provisioning and delivery seamless. You'll build self-service portals that let teams spin up environments within minutes—while ensuring that guardrails, governance, and security standards are always in place
• This role goes beyond automation. You'll embed observability, resiliency, and zero-trust security into the fabric of our platform. Where AI can add value, you'll pave the way—introducing AIOps bots, automated remediation, and ChatOps integrations that reduce toil and improve responsiveness. Your work will ensure the platform is not only reliable today, but also ready to support the AI-powered services of tomorrow
• As a Cloud Platform Engineer, you will set the standards for how infrastructure is built, secured, and operated—directly influencing the speed, reliability, and scalability of everything Unlimit delivers

Qualifications You Bring:

• 5+ years of experience running distributed systems in production
• 3+ years of hands-on experience with: AWS, Azure, or GCP services, including:Compute: EC2/Compute Engine, Lambda, EKS.Networking | VPC, Load Balancers, CDN, ALB/NLB, Cloudflare WAF, Route53.Storage | S3 or other blob storage, EBS.Security | IAM, KMS, Security Groups, GuardDuty, CloudWatch
• 3+ years of production Kubernetes experience, including: Cluster management, upgrades, capacity planning | Kubernetes networking (CNI, Ingress Controllers, Service Mesh) | Helm charts and Kustomize for packaging | Multi-tenancy and resource quota management
• Expert-level knowledge of Terraform (module development, state management, backend configuration, hardening, Terragrunt)
• Strong scripting and automation skills in Python, Go, or Bash
• Experience with event streaming and event-driven architecture (Kafka, RabbitMQ, SQS/SNS)
• Proficiency with configuration management (Ansible) and CI/CD platforms (Jenkins, GitLab CI, GitHub Actions)
• GitOps tools (Argo CD, Flux) and artifact management (Artifactory, Nexus, or cloud-native registries)
• Understanding of microservices architecture and distributed systems
• Proven ability to deliver AI-ready solutions (e.g., internal RAG systems)
• Strong communication skills, ability to balance competing priorities, and experience mentoring engineers

Nice-to-Have:

• Certifications such as: AWS Solutions Architect Professional | Certified Kubernetes Administrator (CKA) | Google Cloud Professional Cloud Architect
• Experience with zero-trust architectures, PCI DSS, DORA, and SEPA compliance frameworks
• Hands-on knowledge of observability stacks (Prometheus, Grafana, VictoriaMetrics)
• Exposure to AIOps/ChatOps automation tools (n8n, Tines, Windmill)

We offer:

• Attractive monthly salary paid in line with experience
• Vacation, sick, and paid holidays
• Flexible working hours
• Full-time: 5/2
• Modern workplace with all necessary equipment
• A team of top international professionals to learn from
• Multicultural working environment

Join Unlimit Team now
Unlimit is an equal opportunity employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We welcome applications from all members of society irrespective of age, sex, disability, sexual orientation, race, religion or belief.