Senior Backend Engineer (Kotlin/Java)

TL;DR

Senior Backend Engineer (Kotlin/Java): Building and optimizing high-scale, event-driven backend services for a meal-kit delivery platform with an accent on supporting and expanding payment capabilities, implementing new payment methods, and ensuring recurring payments are successful. Focus on extending existing systems, integrating with third-party payment providers, and ensuring all changes are well-tested, documented, and smoothly integrated in an AWS/Kubernetes environment.

Location: Wroclaw, Poland

Company

hirify.global provides engineering expertise to build scalable backend services that power one of the world’s leading meal-kit delivery platforms.

What you will do

• Design, build, and maintain high-scale, event-driven backend microservices.
• Add and maintain payment options through existing providers and implement new payment methods.
• Work with AWS, Kubernetes, and CI/CD pipelines for automated delivery.
• Design and maintain REST/gRPC APIs, integrating with Kafka, SNS/SQS, PostgreSQL, and Redis.
• Strengthen observability and system reliability through logging, metrics, tracing, and runbooks.
• Participate in code reviews, share knowledge, and contribute to team growth within an Agile environment.

Requirements

• 5+ years of professional backend development experience.
• Strong expertise in Kotlin and Java, building scalable microservices, ideally in high-traffic or e-commerce environments.
• Hands-on experience with Kubernetes, AWS, and CI/CD pipelines.
• Familiarity with event-driven architectures and message brokers (Kafka, SNS/SQS).
• Solid understanding of PostgreSQL.
• Experience in testing best practices (unit, integration, contract, TDD).
• English: C1 required

Nice to have

• Knowledge of Grafana for monitoring and observability.
• Experience with A/B testing frameworks.

Culture & Benefits

• Paid Vacation and Sick Days.
• Sport/Insurance Compensation.
• English Classes and Training Compensation.
• Charity programs.
• Agile work environment focused on quality, security, and resilience.