backend engineer for cloud SaaS products

Innowise; Kraków; Presencial; PLN 180.000 - 260.000; Jornada completa

Descripción de la vacante

Innowise in Kraków is seeking a platform engineer to build shared libraries, SDKs, and internal backend services while ensuring CI/CD is fast, reliable, and secure.

You will advance observability through metrics, dashboards, and alerts, enhance developer tooling, and participate in on-call rotations across time zones, collaborating with distributed teams.

Formación

• 4+ years of production experience with Node.js and TypeScript.
• Deep understanding of Node.js internals, including the event loop, memory, and async I/O.
• Experience with PostgreSQL beyond CRUD (indexes, query plans, migrations).
• Hands-on AWS experience including DynamoDB, SQS, Kinesis, and Lambda.
• Experience building CI/CD pipelines, ideally with GitHub Actions.
• Observability experience with Prometheus, Grafana, OpenTelemetry, Datadog, or similar.
• Experience using AI coding tools such as Claude Code, Cursor, and Copilot.
• Experience working in distributed teams across time zones.
• Familiarity with NestJS, Kubernetes, Terraform, gRPC, SLIs/SLOs, release-flow design, mentoring or tech-lead experience.

Responsabilidades

• Build shared libraries, SDKs, and internal backend services.
• Keep GitHub Actions CI/CD fast, reliable, and secure.
• Evolve observability across metrics, logs, traces, and alerts.
• Improve developer experience with templates, scaffolds, and local development tooling.
• Support product teams with design reviews.
• Join the team's on-call rotation.

Conocimientos

Distributed teams experience

Problem solving

Team collaboration

Herramientas

Node.js

TypeScript

PostgreSQL

AWS

GitHub Actions

Prometheus

Grafana

OpenTelemetry

Datadog

AI coding tools

Kubernetes

Terraform

gRPC

Descripción del empleo

Описание

The platform team builds the foundation for product engineers, including shared libraries, core services, CI/CD, and observability for cloud SaaS products.

Задачи

• Build shared libraries, SDKs, and internal backend services
• Keep GitHub Actions CI/CD fast, reliable, and secure
• Evolve observability across metrics, logs, traces, and alerts
• Improve developer experience with templates, scaffolds, and local development tooling
• Support product teams with design reviews
• Join the team's on-call rotation

Требования

• 4+ Years of production experience with Node.js and TypeScript
• Solid understanding of Node.js internals, including the event loop, memory, and async I/O
• PostgreSQL experience beyond CRUD, including query plans, indexes, slow queries, and migrations
• Hands-on AWS experience with DynamoDB, SQS, Kinesis, and Lambda; expertise in all four is not required
• Experience building and maintaining CI/CD pipelines, ideally with GitHub Actions
• Practical observability experience with metrics, dashboards, and alerts using Prometheus, Grafana, OpenTelemetry, Datadog, or similar
• Confident and critical use of AI coding tools such as Claude Code, Cursor, and Copilot
• Experience working in distributed teams across time zones
• Будет плюсом: NestJS, Kubernetes, Terraform, gRPC, SLIs/SLOs, release-flow design, mentoring or tech-lead experience

Условия

On-site approximately 4 days per week CET