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Senior Backend Engineer (f/m/x)
  • Warsaw
Senior Backend Engineer (f/m/x)
Warszawa, Warsaw, Masovian Voivodeship, Polska
Breitling SA
29. 11. 2025
Informacje o stanowisku

technologies-expected :


  • SAP
  • PostgreSQL
  • Docker
  • Kubernetes
  • AWS
  • Microsoft Azure
  • DynamoDB
  • Git

responsibilities :


  • You will maintain and deliver e-commerce features as part of the business strategy.
  • You will operate and extend our Saleor-based commerce platform, including configuration and plugin development.
  • You will own and improve integrations with external systems such as search/content (Algolia, Yext), payments (Adyen, Stripe, etc.), DAM, PIM, CMS, ERP/OMS, CRM, tax/VAT (Avalara/Avatax), shipping, and fraud detection (Riskified).
  • You will build and evolve Python/FastAPI services with async I/O (asyncio), REST/OpenAPI, and GraphQL.
  • You will implement event-driven workflows using Azure Service Bus with idempotency, DLQs, retries, and backpressure.
  • You will containerize and run services on Kubernetes, managing deployments via GitOps with Argo CD.
  • You will investigate and resolve operational issues using Datadog (APM, logs, metrics), Sentry (error monitoring and release health), and Azure Service Bus Explorer for message tracing and DLQ analysis.
  • You will configure CDN/WAF solutions with Cloudflare or Akamai, including caching, rate limiting, bot mitigation, and edge rules.
  • You will use Git effectively (branching, PRs, code reviews, feature flags) and maintain CI/CD pipelines.
  • You will document designs and decisions, mentor engineers, and lead technical initiatives.

requirements-expected :


  • You have 5+ years of professional backend engineering experience with production ownership.
  • You have demonstrated experience in designing and operating distributed, event-driven systems.
  • You are familiar with Agile methodologies such as Scrum and Kanban.
  • You are fluent in English, both written and spoken.
  • You have strong time management and organizational skills.
  • You communicate clearly and document designs effectively.
  • You have an ownership mindset with a strong bias for action.
  • You have hands-on experience with PostgreSQL, including indexing, migrations, and query tuning.
  • You are proficient with Docker and Kubernetes.
  • You use Git effectively, including branching, pull requests, and code reviews.
  • You understand security fundamentals, including OAuth2/OIDC, secrets management, least privilege principles, and dependency scanning.
  • You are experienced with CI/CD pipelines and testing frameworks such as pytest (unit and integration).
  • You are familiar with AWS (EKS, SQS/SNS, RDS, DynamoDB, IAM) in addition to Azure.
  • You maintain high code quality using tools such as type hints/mypy, ruff/flake8, Black, and pre-commit.
  • You are skilled in performance profiling and problem-solving in distributed systems.

offered :


  • Home office (depending on position requirements)
  • Medical Insurance
  • Watch to wear / watch to buy program
  • Referral program
  • Development opportunities
  • Culture of feedback

benefits :


  • sharing the costs of sports activities
  • private medical care
  • life insurance
  • corporate products and services at discounted prices
  • employee referral program
  • Watch to wear / watch to buy program

  • Praca Warszawa
  • Warszawa - Oferty pracy w okolicznych lokalizacjach


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