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Senior Backend Developer (C# or Node.js) @ Antal

Polska🌐 Remote💼 Full-time💰 $110–$140🗓 2026-05-29 → 2026-08-06

Core

Designing and developing backend applications and middleware components for scalable IoT platform solutions.

Role type

Senior Backend Engineer (IoT)

Builds

API and middleware layers for mobile, web, and internal systems in a distributed cloud-based environment.

Domain

Internet of Things (IoT), Cloud Infrastructure

Deliverable

production ML models | product features | infrastructure

Required skills

C#, .NET 6, Node.js, TypeScript, Microservices architecture, REST, Event-driven systems, RabbitMQ, Azure Service Bus, SQL Server, PostgreSQL, MongoDB, Redis, Cosmos DB, Docker, Kubernetes, Linux, CI/CD pipelines, TDD, Unit testing, Integration testing

Preferred skills

Git workflows, Monitoring and logging tools, Agile/Scrum methodologies

Technologies

Azure, RabbitMQ, Azure Service Bus, SQL Server, PostgreSQL, MongoDB, Redis, Cosmos DB, Docker, Kubernetes

Responsibilities

Design and develop backend applications and middleware components for scalable IoT solutions, Build and maintain REST APIs, WebSocket communication, and asynchronous integrations, Create and optimize data models using relational and NoSQL databases, Cooperate on cloud deployments, CI/CD processes, and infrastructure automation, Ensure high software quality through TDD, unit testing, and integration testing, Work closely with cross-functional teams in an Agile environment

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