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Job · Senior

Senior Backend Engineer, Deliveries and Orders

Backend Developer • Senior • On-site • Full-time • 📍 Warszawa

A senior backend engineering role in the Deliveries and Orders squad of the Consumer Mega Alliance at HelloTech in Warsaw. The mission is to build high-performing, scalable systems that power HelloFresh's core actions, ensuring millions of global users can place orders and manage deliveries quickly and without frustration. The role plays a critical part in modernizing core domains by decoupling them from legacy monolithic systems and building robust Order Management APIs and Delivery Services to unlock new capabilities like B2B ordering, ad-hoc changes and dynamic delivery cutoffs.

Responsibilities

  • Deliver high-quality architecture, design and development for microservices with robust deployment and operational stability using DevOps practices
  • Provide expertise within autonomous, cross-functional agile teams, collaborating with Product Owners, front-end engineers and designers
  • Act as a technical authority on core product architecture and share knowledge with other contributors
  • Execute technical tasks using a stack including Golang, Kafka, Docker and Kubernetes
  • Perform problem-solving across a wide range of platforms to ensure system reliability and performance

Requirements

  • Solid experience in backend development across monolithic, microservice and distributed event-driven architectures
  • Hands-on experience using AI coding agents (e.g. Claude Code, Cursor, Copilot) as thought partners, with habits around verifying, testing and setting boundaries on AI-generated work
  • Proficiency in languages such as Golang
  • Proven track record delivering services using Docker and Kubernetes
  • Extensive experience implementing true CI/CD pipelines
  • Practical application of TDD, BDD, DDD and distributed architectural patterns
  • Background in developing event-driven architectures using Kafka and/or RabbitMQ
  • Experience with MongoDB and PostgreSQL

Nice to have

  • JVM/Kotlin experience
  • Familiarity with e-commerce and subscription-based business models
  • GraphQL integration experience

Soft skills

Technical leadershipCross-functional collaborationKnowledge sharingProblem-solving

What we offer

  • Global collaboration with experienced engineers and product partners across international teams
  • Building and operating modern systems at global scale for 6+ million customers
  • Technical, product and design leadership in an autonomous, product-led setup
  • End-to-end development and delivery ownership
  • Access to the Warsaw Centre Point workspace with showers, breakout zones, outdoor space, cycle parking and refreshments

About the company

HelloTech is HelloFresh's global technology backbone with more than 1000 people, building the digital products that power an end-to-end food experience across a subscription-based, direct-to-consumer model.