Platform Engineer Mid Senior

We’re looking for an experienced Platform Engineer to join our growing infrastructure team. If you enjoy working across cloud and bare-metal systems, value pragmatic automation, and thrive in a small, high-impact team - this is for you.

Role Summary

As a Platform Engineer, you'll be responsible for building and maintaining our hybrid infrastructure - a mix of AWS-based cloud workloads and on-prem systems. You'll help us scale our platform with Kubernetes (EKS), automate environments, improve security and observability, and support product engineering with robust tooling and deployment workflows.

This is a hybrid role - part-remote, part-on-site (Warsaw area). You'll join a team of 2 engineers, working closely with developer teams and the CTO.

What You’ll Be Working On

Build and maintain infrastructure across AWS (EKS, EC2, RDS, Aurora, Redis, CloudFront) and Proxmox VE / Backup .

Support containerized workloads using Docker , orchestrated via Kubernetes (EKS) with Helm and Karpenter for scaling.

Manage IaC pipelines with Terraform and Ansible for consistent environment provisioning.

Optimize app serving stack : nginx / passenger , HAProxy , Varnish , Cloudflare , and Let's Encrypt integrations.

Enhance platform observability using Prometheus, Grafana, AlertManager , and centralized logging via Elastic, Wazuh , and Netdata .

Support internal tooling : secrets with Vault , secure access via Boundary , and GitLab-based CI / CD.

Build and maintain internal developer platform (self-hosted Gitlab) , CI runners, CI pipelines and deployment automation

Enable zero-downtime deployments for monolithic Rails and Inertia.js applications.

What We’re Looking For

Must-Have Skills

3+ years in Platform, DevOps, or Infrastructure Engineering.

Strong Linux fundamentals (Debian / Alpine).

Production-grade experience with AWS (EC2, EKS, RDS, IAM, Cloud networking (VPC)).

Proficiency with Terraform , Ansible , and GitLab CI / CD .

Experience operating Kubernetes , ideally EKS , with Helm and Karpenter .

Solid understanding of containers and service orchestration .

Familiarity with logging, monitoring, and alerting systems.

Collaborative mindset, autonomy in hybrid / remote work, and strong problem-solving skills.

Nice-to-Have Skills

Experience with Proxmox VE , custom hardware deployments, or hybrid cloud / on-prem setups.

Knowledge of PostgreSQL RDS Proxy , Aurora , or ElastiCache Redis .

Familiarity with Vault , Boundary , or other HashiCorp tooling.

Experience optimizing high-traffic web stacks (Rails / Nodejs) or performance-tuning Nginx / Passenger / Varnish.

Awareness of infrastructure security, SSL / TLS, and zero trust principles.

Interest in future MLOps work (e.g., GPUs, ML infra) is a bonus.

How We Work

We’re a small team , with high trust and shared ownership.

You’ll work across the stack - from cloud architecture to deployment tooling.

Our infra is built for scale, reliability and cost-efficiency , but we avoid unnecessary complexity.

We value clarity, async communication, thoughtful automation and learning skills.

Work Model

Location : Hybrid (remote + on-site in Warsaw)

Schedule : Flexible, with some team-aligned core hours

Language : English (tech), Polish (team communication)

How to Apply

If you’re interested, send us :

Your CV

Examples of past infrastructure work (public repos, blog posts, or short summary)

Any questions you might have for us

We’ll share a short, practical take-home exercise after the screening call.

Benefits

Salary range PLN 17 000 - 25 000 + VAT (B2B) , based on experience

Flexible working hours

Modern office space in Old Mokotów

Company MacBook Pro laptop

Multisport card

Enel-Med healthcare package

Secure bike storage and on-site shower facilities