Middle .Net Full Stack engineer (#6062)

N-iX LTD; Poland; Hybrid; PLN 120,000 - 180,000; Full time

Benefits offered by this job

Flexible working format

Competitive salary

Professional development tools

Active tech communities

Job summary

N-iX LTD in Poland seeks a skilled .NET web developer to build new features on top of our existing platform, using .NET, JavaScript, React and jQuery. You will also support the application via bug fixes, security updates, and performance improvements.

The role operates within a SAFe environment, requires mentoring of junior developers, and collaboration across teams. Strong communicator with GitHub Actions, Octopus, TeamCity, Azure, and testing frameworks is essential.

Qualifications

• 3+ years of experience developing .NET-based web apps.
• Strong knowledge of .NET Framework 4.7, ASP.NET.
• Practical JS/HTML/CSS, React, jQuery experience.
• Familiarity with microservices architecture.
• Oracle 19c experience.
• Hands-on with Octopus, TeamCity, GitHub Actions.
• Azure experience and VS tooling proficiency.
• Understanding of version control, security, Agile (Kanban).
• Experience with MSTest/xUnit and TDD is a plus.
• Ability to use AI tools to improve coding efficiency and quality.
• Excellent communication and mentoring skills.

Responsibilities

• Build new features on top of the existing web app using .NET, JS, React, and jQuery.
• Support the application with bug fixes, security updates, and improvements.
• Work in SAFe, participate in code reviews, sprint planning and design discussions.
• Troubleshoot and debug production and staging issues.
• Write clean, maintainable code following standards and best practices.

Skills

.NET

ASP.NET

JavaScript

React

jQuery

Microservices

Oracle 19c

Azure

CI/CD

GitHub Actions

Octopus

TeamCity

Visual Studio

Postman

Security best practices

Kanban

MSTest/xUnit

Mentoring juniors

Communication teamwork

Tools

Octopus

TeamCity

GitHub Actions

Visual Studio

Postman

Job description

World’s leading provider of intelligent solutions

Our client is a comprehensive site lifecycle management solution tailored for the telecommunications and energy industries. It enables organizations to efficiently manage sites, assets, projects, and leases, enhancing operational visibility and resource allocation throughout the site lifecycle.

Responsibilities:

• Building new features on the top of existing web application, using .Net, JS, React, jQuery
• Support of existing web application (bug fixes, security updates, technical improvements)
• Work, using SAFe methodology, to deliver incremental value, actively participating in code reviews, sprint planning, and design discussions.
• Troubleshoot and debug complex issues in production and staging environments.
• Write clean, maintainable, and efficient code while adhering to coding standards and best practices.

Requirements:

• 3+ years of experience in development of .Net-based web applications
• Good experience with .NET Framework 4.7, ASP.NET
• Practical experience with JS, HTML, CSS, XML, React, jQuery
• Familiarity with microservices architecture
• Knowledge of Oracle 19c database
• Hands-on experience with Octopus, TeamCity, Github Actions
• Working experience with MS Azure
• Proficient in using development tools like Visual Studio, Postman
• Strong understanding of version control, security best practices, and Agile methodologies, especially Kanban
• Familiarity with MSTest, xUnit and test-driven development
• Effectively use AI-powered tools to improve coding efficiency, code quality, and development workflows.
• Excellent communication and teamwork skills, with the ability to mentor junior developers

Nice to have:

• Experience with Sencha and Bootstrap
• Experience with Veracode
• Expertise with OpenSearch

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing