Platform Engineer: Build Reliable Cloud & DevTools

Sensor Tower; Kraków; On-site; PLN 180,000 - 240,000; Full time

Job summary

Sensor Tower is seeking a Platform Engineer to improve the infrastructure, tooling, and delivery workflows used by a large engineering team. The role blends infrastructure work with software development to deliver reliable, scalable cloud-based systems.

You will focus on CI/CD, automation, observability, and developer experience, using AWS, Terraform, Ansible, and bespoke tooling while collaborating across squads to streamline releases and reduce build times.

Qualifications

• Experience building and maintaining complex CI/CD workflows.
• Software development experience including internal tools, APIs, or automation.
• Experience with AWS or another cloud provider.
• Telemetry and monitoring experience (OpenTelemetry, Grafana, Kibana).
• Strong Computer Science and System Design fundamentals.

Responsibilities

• Improve developer experience by building tools and workflows for development, testing, and shipping software.
• Maintain infrastructure automation with Ansible, Terraform, and Terragrunt.
• Improve reliability and performance of CI/CD workflows.
• Identify causes of slow builds, failed pipelines, and flaky tests.
• Develop internal tools, improve test infrastructure, and occasionally work on product features.
• Improve observability using OpenTelemetry, ELK.
• Leverage AI to improve engineering workflows with cloud-based agent tools.

Skills

CI/CD workflows

Software development

Cloud experience

Telemetry/Monitoring

System design

Go/Ruby willingness

Tools

AWS

Terraform

Terragrunt

Ansible

Jenkins

Docker

ELK

ClickHouse

MongoDB

PostgreSQL

Ruby-on-Rails

Job description

Sensor Tower is seeking a Platform Engineer to improve the infrastructure, tooling, and delivery workflows used by a large engineering team. The role blends infrastructure work with software development to deliver reliable, scalable cloud-based systems.

You will focus on CI/CD, automation, observability, and developer experience, using AWS, Terraform, Ansible, and bespoke tooling while collaborating across squads to streamline releases and reduce build times.