Senior .NET Backend Engineer - High-Scale Logistics (Hybrid)

Allegro Ltd.; Polska; Hybrid; PLN 19,000 - 26,000; Full time

Benefits offered by this job

Hybrid work model

Occasional remote days

Dell Laptop

Cafeteria plan

English classes

Training budget

Volunteer day

Social events

Job summary

Allegro Ltd. is hiring a Senior Software Engineer to design and own high-performance backend services in .NET/C#. You will work within the Logistics team, delivering scalable RESTful APIs, microservices, and data-driven solutions with PostgreSQL and Redis, in a hybrid Warsaw-based setup.

You will contribute to the end-to-end SDLC, mentor engineers, and participate in architecture reviews while collaborating across teams to solve complex logistics challenges.

Qualifications

• Extensive experience architecting high-throughput, low-latency backend systems using C# and .NET Core / ASP.NET Core.
• Mastery of resilient RESTful APIs, modular monoliths, and microservices.
• Deep expertise in relational database optimization with PostgreSQL and Entity Framework Core under high-concurrency workloads.
• Experience with legacy protocols (SOAP/WCF) and cloud-native environments using Docker, Kubernetes, CI/CD.

Skills

C#

.NET Core

ASP.NET Core

REST

PostgreSQL

Azure

Docker

Kubernetes

Entity Framework

Redis

English (B2)

Tools

Docker

Kubernetes

CI/CD

PostgreSQL

Azure

Job description

Allegro Ltd. is hiring a Senior Software Engineer to design and own high-performance backend services in .NET/C#. You will work within the Logistics team, delivering scalable RESTful APIs, microservices, and data-driven solutions with PostgreSQL and Redis, in a hybrid Warsaw-based setup.

You will contribute to the end-to-end SDLC, mentor engineers, and participate in architecture reviews while collaborating across teams to solve complex logistics challenges.