Platform Engineer

WHO ARE WE Cognism is the leading provider of European B2B data and sales intelligence. Ambitious businesses of every size use our platform to discover, connect, and engage with qualified decision-makers faster and close more deals. Headquartered in London with global offices, Cognism’s contact data and contextual signals are trusted by thousands of revenue teams to eliminate the guesswork from prospecting. OUR WORK MODEL Hybrid: This is a hybrid role, requiring you to work from our Warsaw office 2 days per week, with flexibility to work remotely on other days. YOUR ROLE As a Platform Engineer at Cognism, you will design, build, and maintain the infrastructure that powers our high-scale development and deployment environment. Working as part of a small but mighty Platform team, your expertise will be instrumental in driving performance, scalability, and developer efficiency across the business. YOUR CHALLENGES & OPPORTUNITIES • Design Resilient Systems – Architect and maintain secure, scalable, and observable infrastructure to support Cognism’s growing platform needs. • Streamline Deployments – Build and manage infrastructure-as-code to enable fast, standardized, and reliable deployments across teams. • Advance CI/CD Pipelines – Evolve and maintain CI/CD systems that minimize downtime and maximize deployment speed and consistency. • Boost Developer Experience – Create tooling and automation to reduce friction in development workflows and accelerate delivery. • Foster Collaboration – Work cross-functionally with Security, Data, ML, and Product teams to ensure infrastructure aligns with both technical and business goals. • Lead Incident Readiness – Own systems post-deployment, driving observability, failover planning, and incident response. • Drive Continuous Improvement – Participate in architecture discussions, retrospectives, and planning to improve infrastructure processes and resilience. • Champion Documentation – Create and maintain documentation and post-incident reviews to support shared learning and onboarding. OUR EXPECTATIONS • Cloud Expertise – 3+ years experience managing production systems on AWS (experience with Azure and AliCloud a bonus). • Container Orchestration – 2+ years using Kubernetes in production environments. • Infrastructure as Code – 3+ years experience with Terraform and GitOps workflows. • Observability First – Proficient with Prometheus, Grafana, OpenTelemetry, Coralogix, Loki, or similar tools. • System-Level Thinking – Analytical mindset with the ability to consider the whole system, not just the task at hand. • Automation & Scripting – Solid command of Linux and scripting languages (Python, Bash, etc.). • CI/CD Familiarity – Experience with Github Actions, ArgoCD, or similar tools. • Strong Communicator – Excellent collaboration skills with an ability to explain technical concepts clearly. • Certifications Welcome – AWS, Kubernetes, or Terraform certifications are a plus, but not required. • Proficiency in coding with Python or Golang OUR TECH STACK • Cloud Providers – AWS, Azure, AliCloud, plus various SaaS platforms • Orchestration – ECS, EKS (Kubernetes) • Serverless – Step Functions, EMR, Lambdas, API Gateway • CI/CD – GitHub Actions, FluxCD, ArgoCD, Terraform • Databases – A mix of SQL and NoSQL technologies • Cloud Services – VPC, EC2, ELB, S3 (and equivalents across clouds) • Observability – Prometheus, Loki, OTEL, Coralogix, Thanos WHY COGNISM At Cognism, we’re not just building a company - we’re building an inclusive community of brilliant, diverse people who support, challenge, and inspire each other every day . If you’re looking for a place where your work truly makes an impact , you’re in the right spot! Our values aren’t just words on a page—they guid