Senior Fullstack Engineer - .NET/Angular | Remote, High Impact

Applandeo; Kraków; On-site; PLN 179,000 - 207,000; Full time

Job summary

Cautus Geo in Kraków is seeking a Senior Fullstack Engineer to contribute to our Geotech project, spanning frontend and backend with a focus on real-time data and large data handling. You’ll work on Cautus Web, maps, and data visualization for critical infrastructure.

Join a small team with ownership, collaborate with geologists and engineers, and grow in an environment that values practical impact and a balance of on-site collaboration in Kraków.

Qualifications

• At least 5 years of professional fullstack development experience.
• Writing C# code that handles very large data sets quickly and with care for memory use.
• Good knowledge of modern Angular: signals, standalone components, @if, @for and OnPush with RxJS/TypeScript.
• Knowledge of the Azure DevOps ecosystem: pipelines, artefacts, releases and agents.
• Knowledge of OpenID Connect and OAuth 2.0 protocols.
• Experience with ASP.NET Core APIs, CQRS, DI and EF Core with SQL Server.
• Experience with distributed systems where services talk via message queues and tracing.
• Experience building live-updating web apps with backend push notifications.
• Automated tests on both ends: .NET unit/integration and frontend unit/E2E tests.
• Experience with Docker and container-based builds.
• Fluent in both English and Polish.

Responsibilities

• Cautus Web, our real-time monitoring platform, aggregates data from many sensors, issues alerts, and distinguishes anomalies from normal variation.
• Maps and GIS: build interactive maps showing sensor locations and activity from a single meter to a mountainside.
• Data visualization: create plots and charts showing ground/building movement and highlight unusual changes; handle large datasets efficiently.
• Develop apps for field engineers and clients used on-site and by personnel responsible for critical infrastructure.

Skills

Fullstack development

C# coding

Angular

Azure DevOps

OpenID Connect

OAuth 2.0

ASP.NET Core

CQRS pattern

Dependency Injection

Entity Framework Core

SQL Server

Distributed systems

Message queues

Unit tests

Docker

English & Polish

Job description

Cautus Geo in Kraków is seeking a Senior Fullstack Engineer to contribute to our Geotech project, spanning frontend and backend with a focus on real-time data and large data handling. You’ll work on Cautus Web, maps, and data visualization for critical infrastructure.

Join a small team with ownership, collaborate with geologists and engineers, and grow in an environment that values practical impact and a balance of on-site collaboration in Kraków.