Senior .NET Backend Engineer: Microservices & Kubernetes

GROWE; Polska; Híbrido; PLN 170.000 - 250.000; Jornada completa

Descripción de la vacante

GROWE is seeking a seasoned backend engineer to design, build, and maintain scalable services using C# and .NET 6+. You will work with microservices, asynchronous messaging, and Kafka, ensuring robust authentication/authorization and strong data modeling with PostgreSQL.

You'll contribute to observability, deployment in Kubernetes, and GitOps workflows, collaborating with DevOps and QA, while participating in on-call rotations and continuous performance improvements.

Formación

• 5+ years of commercial backend development with C#/ .NET 6+ and ASP.NET Core.
• Solid understanding of microservices architecture and distributed systems.
• Experience with asynchronous communication and event-driven architectures.
• Experience with relational databases and SQL performance tuning (PostgreSQL a plus).
• Familiar with ORMs such as Entity Framework.
• Strong knowledge of authentication/authorization (OAuth 2.0, OpenID Connect).
• Understanding observability and monitoring in production systems.
• Experience with AWS, Kubernetes, Terraform is a plus.

Responsabilidades

• Design, build, and maintain backend services using .NET (C#).
• Develop and evolve microservices in production environments.
• Support existing functionality and ensure backward compatibility of releases.
• Work on core domain flows such as accounts, registration, authentication, wallet.
• Participate in task analysis, decomposition, and effort estimation.
• Deliver tasks for testing and collaborate with QA during test phases.
• Build integrations using asynchronous communication and event-driven patterns.
• Work with relational databases and optimize query performance.
• Identify performance bottlenecks and contribute to system design improvements.
• Participate in on-call rotation and handle production incidents.
• Perform high-quality code reviews focusing on maintainability and performance.

Conocimientos

C#

.NET

ASP.NET Core

Microservices

Event-driven architecture

Kafka

PostgreSQL

Entity Framework

Unit testing

OAuth 2.0/OpenID Connect

Observability & monitoring

Kubernetes

Terraform

AWS

Herramientas

PostgreSQL

Kubernetes

Terraform

AWS

Grafana

Descripción del empleo

GROWE is seeking a seasoned backend engineer to design, build, and maintain scalable services using C# and .NET 6+. You will work with microservices, asynchronous messaging, and Kafka, ensuring robust authentication/authorization and strong data modeling with PostgreSQL.

You'll contribute to observability, deployment in Kubernetes, and GitOps workflows, collaborating with DevOps and QA, while participating in on-call rotations and continuous performance improvements.