Salary
$62k – $66k per year
Location
In office (Warsaw)
Seniority
Senior · 5+ years exp
Employment
Contractor
First seen by Alion on Sep 24, 2026.
Overview
Company
Impact
Profile match
Square One Resources is an IT recruitment and IT outsourcing company operating in Poland. Its vacancies cover SAP architecture, full stack and Rust development, DevOps, cybersecurity and IT project management for clients in Warsaw, Krakow and the Tri-City area. The company is based in Warsaw, Poland.
- project focused on replacing the existing POSEOR application, currently based on Access 97, with a modern web-based solution
- develop a new application and migrate existing reporting functionality to data provided by the Central Warning Database
- serve as the target source for warning-related data, including ad-hoc, permanent and one-time warnings, provide full data archiving and integration with cooperating systems including EDR/SERWO2
- analysis of existing POSEOR reports, definition of their equivalents in the new solution, preparation of requirements, and implementation of reports based on the new data source
Zakres obowiązków
- designing and developing a modern web application using .NET and Angular
- developing backend services, business logic and REST APIs
- designing and developing relational databases using MS SQL Server
- integrating the application with external systems and services
- implementing application security mechanisms
- preparing and configuring development and test environments
- analyzing existing POSEOR reports and translating them into the new solution
- developing new reports based on data from the Central Warning Database
- developing responsive and user-friendly interfaces
- performing internal functional and integration testing
- supporting business acceptance and testing activities
- preparing technical and project documentation
- working with Git and Git Flow
- supporting CI/CD processes using Azure DevOps
- collaborating with developers, testers, business stakeholders and other project participants
Wymagania
- at least 5 years of professional experience as a backend .NET and frontend Angular developer
- strong knowledge of .NET / .NET 10
- good knowledge of MS SQL Server and SQL
- practical experience in designing and consuming RESTful APIs
- solid knowledge of Angular, TypeScript and JavaScript
- good knowledge of HTML5 and CSS3
- experience in developing responsive layouts and understanding of UX/UI principles
- experience with Git and Git Flow and working with team-based repositories
- knowledge of CI/CD, particularly Azure DevOps
- experience with Jira
- ability to work effectively in a team and prepare technical documentation
- experience with RabbitMQ
- knowledge of Azure Service Bus
- experience with Apache Kafka
- experience integrating applications with external systems
- experience working on modernization or replacement of legacy applications
Tech stack
- .NET
- Angular
- JavaScript
- TypeScript
- MS SQL
- RabbitMQ
- Kafka
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