Senior .NET Developer

HeadHR; Województwo pomorskie; Hybrid; PLN 180,000 - 260,000; Full time

Job summary

HeadHR is seeking a Senior Software Engineer to develop and enhance a configurable heating and cooling software tool used globally. You will design event-driven services, cloud infrastructure and frontend applications, collaborating with backend, frontend and platform engineers in energy and smart building domains.

Required are 5+ years with C#/.NET, Kubernetes, Azure basics, Python and PostgreSQL, plus experience with event-driven architectures and asynchronous messaging.

Qualifications

• Senior level with at least 5 years of commercial experience with C# and .NET.
• Hands-on Kubernetes experience and basic Azure cloud knowledge.
• Practical Python and strong PostgreSQL experience.
• Experience with event driven architecture and asynchronous messaging systems.
• English proficiency at minimum B2 level.
• Ability to work independently and as part of a cross functional engineering team.

Responsibilities

• Develop and improve a software tool for tailor made heating and cooling solutions used by customers worldwide.
• Design and develop event driven services, cloud infrastructure and user facing applications.
• Build scalable analytics, distributed event processing and real time operational insights for intelligent heating and hot water management.
• Work with backend, frontend and platform engineers in the energy and smart building industry.

Tools

C# and .NET

Python

Apache Kafka

Apache Iceberg

PostgreSQL

GreptimeDB

Time series databases

React

TypeScript

Kubernetes

Azure Cloud

SpiceDB

ReBAC

Job description

Project and responsibilities:

• Develop and improve a software tool for tailor made heating and cooling solutions used by customers worldwide.
• Design and develop event driven services, cloud infrastructure and user facing applications.
• Build scalable analytics, distributed event processing and real time operational insights for intelligent heating and hot water management.
• Work with backend, frontend and platform engineers in the energy and smart building industry.
• Use C#, .NET, Python, Apache Kafka, Apache Iceberg, PostgreSQL, GreptimeDB, time series databases, React, TypeScript, Kubernetes, Azure Cloud, SpiceDB and ReBAC.

What the offer provides:

• Work on sustainable, cost efficient and climate friendly heating and cooling solutions.
• Flexible hybrid work from Gdynia, Kraków, Warszawa or Rzeszów.
• Regular integration meetings within the Jit community.

Kogo poszukujemy?

Key requirements:

• Senior level and at least 5 years of commercial experience with C# and .NET.
• Hands on Kubernetes experience and basic Azure cloud knowledge.
• Practical Python and strong practical PostgreSQL experience.
• Experience with event driven architecture and asynchronous messaging systems.
• English proficiency at minimum B2 level.
• Ability to work independently and as part of a cross functional engineering team.

Nice to have:

• Experience with migration and platform transformation projects.
• React and TypeScript skills.
• Python experience in data engineering, analytics, ETL and data processing.
• Hands on Apache Kafka experience.
• Experience with modern data platform ecosystems and cloud native architecture design.