Senior Platform Engineer - Cloud & DX (Hybrid, Kraków)

CQUE; Kraków; Hybrid; PLN 180,000 - 280,000; Full time

Job summary

CQUE is seeking a Software Engineer / Senior Software Engineer, Platform, to build the technical foundations powering a global cloud-based SaaS platform. You will join a high-performing Platform Engineering team owning infrastructure, services, tooling, and developer experience across multiple countries and time zones.

The role covers developers of shared libraries, internal APIs, and CI/CD pipelines, with a focus on scalable, secure platforms and strong ownership of production systems.

Qualifications

• 3+ years of backend experience with TypeScript/Node.js, ideally NestJS in production.
• Strong fundamentals: CPU, memory, I/O, concurrency, performance bottlenecks.
• Experience using AI-assisted development tools and reviewing AI-generated code.
• Knowledge of PostgreSQL: schema design, migrations, query analysis.
• Familiarity with AWS services: DynamoDB, SQS, Kinesis, Lambda.
• Experience with CI/CD pipelines and release flows.
• Experience with observability tools: Prometheus, Grafana, OpenTelemetry, Datadog.
• Willingness to learn across a broad, evolving platform landscape.
• Commitment to writing clean, reusable code.

Responsibilities

• Build and maintain shared libraries and SDKs for authentication, logging, configuration, gRPC clients, and error handling.
• Develop shared backend services and internal APIs.
• Improve developer experience with service templates, scaffolding, and local development tooling.
• Build and maintain CI/CD pipelines using GitHub Actions.
• Develop observability across metrics, logs, traces, dashboards, and alerts.
• Collaborate with product engineering teams to solve complex technical problems and review designs.
• Participate in an on-call rotation and respond to production incidents.
• Build scalable cloud platforms supporting multiple SaaS applications.

Skills

TypeScript / Node.js

NestJS

Performance optimization

AI-assisted development

Distributed systems

Team collaboration

Time zone coordination

Tools

PostgreSQL

AWS (DynamoDB, SQS, Kinesis, Lambda)

CI/CD

Prometheus

Grafana

OpenTelemetry

Datadog

Job description

CQUE is seeking a Software Engineer / Senior Software Engineer, Platform, to build the technical foundations powering a global cloud-based SaaS platform. You will join a high-performing Platform Engineering team owning infrastructure, services, tooling, and developer experience across multiple countries and time zones.

The role covers developers of shared libraries, internal APIs, and CI/CD pipelines, with a focus on scalable, secure platforms and strong ownership of production systems.