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Back End Developer

Infinity Quest

 

Kraków, Poland

Posted On: 13 days ago
Experience: 5+ years
Availability: Remote
Openings: 2
Category: Back End Developer
Tenure: No Preference/Any
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Description

We are looking for a Backend Engineer to build resilient, cloud-native services powering customer-facing and store-operational applications, within a distributed, output-based delivery team.

Key Responsibilities

  • Design and develop scalable backend services and APIs
  • Build and maintain event-driven, microservices-based systems on GCP
  • Own data modelling and persistence across relational (PostgreSQL) and NoSQL/analytical stores (Firestore, BigQuery)
  • Implement caching strategies (Memorystore) and edge/security configurations (Cloudflare)
  • Maintain CI/CD pipelines and infrastructure-as-code (GitHub Actions, Terraform)
  • Support cloud migration and modernisation initiatives
  • Ensure observability, monitoring, and production support in line with agreed SLAs
  • Collaborate with frontend engineers, QA, and product/engineering leads within a cross-functional squad

Required Tech Stack

  • Languages: TypeScript, Node.js; Go (working knowledge)
  • Cloud & Infrastructure: GCP — Cloud Run, Cloud Functions, GCS
  • Data: PostgreSQL, BigQuery, Firestore / MongoDB Atlas
  • Caching: Memorystore
  • CDN / Security: Cloudflare
  • CI/CD & IaC: GitHub Actions, Terraform
  • Testing: Jest, Vitest

Experience & Qualifications

  • 4–8 years backend engineering experience, ideally with retail/e-commerce systems
  • Strong grounding in microservices, API design, and event-driven patterns (Pub/Sub or equivalent)
  • Experience with cloud migrations and modernisation of legacy systems is a strong plus
  • Familiarity with distributed/nearshore delivery models
  • Strong written and spoken English for cross-team collaboration

Education

Any Graduate

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