Middle Full-Stack Software Engineer (.NET)

United States Digital Space LLC; Poland; Hybrid; PLN 336,000 - 561,000; Full time

Benefits offered by this job

International projects

Hybrid/Remote flexibility

Medical healthcare

Recognition program

Learning reimbursement

Well-being program

Team events

Sports compensation

Referral bonuses

Equipment provision

Job summary

United States Digital Space LLC is seeking a skilled software engineer to design, build, and maintain cloud-based applications and services that power a broad product ecosystem. You will integrate with third-party systems and partner apps, delivering robust backend services using C#, .NET, and ASP.NET.

In this role, you will deploy cloud-native services on Microsoft Azure, including App Services and Container Apps, and leverage AI tools to accelerate coding, testing, and operations while

Qualifications

• Proven professional experience in software development with deep expertise in object-oriented languages (C#/.NET).
• Experience with Typescript/Angular.
• Hands-on experience managing and optimizing Azure SQL Database.
• Demonstrated capability in leveraging AI tools—such as Claude, Copilot, Cursor—to accelerate development workflows.
• Proficiency in system monitoring/diagnostics with Application Insights and SQL Profiler.
• Proven track record in API design/versioning, RESTful services, and OpenAPI/Swagger standards.
• Background in automated testing with unit testing frameworks (xUnit, NUnit) and test-data builders.
• Extensive experience building and scaling microservices architectures and event-driven patterns.
• Proficiency with Entity Framework Core for data access.

Responsibilities

• Design, develop, and maintain cloud-based applications and services supporting our product ecosystem.
• Build and maintain integrations with third-party systems and external partners.
• Develop backend services using C#, .NET, ASP.NET, and Web APIs.
• Design, deploy, and operate cloud-native services on Microsoft Azure (Azure App Services, Azure Container Apps).
• Leverage AI tools to automate processing, generate source code, and automate unit testing.
• Apply strong engineering practices related to OO design, security, performance, and maintainability.

Skills

C#/.NET

Typescript/Angular

Azure SQL Database

API design

TDD/DDD

Microservices

Entity Framework Core

Unit testing (xUnit/NUnit)

Tools

Github Copilot

Claude

Cursor

Application Insights

SQL Profiler

OpenAPI/Swagger

Job description

Why Join the company

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.

What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client

The leading provider of vehicle lifecycle solutions, with headquarters in Chicago, enables the companies that build, insure, and replace vehicles to power the next generation of transportation. Its platform delivers advanced mobile, artificial intelligence, and car technologies. It connects a network of 350+ insurance companies, 24,000+ repair facilities, hundreds of parts suppliers, and dozens of third-party data and service providers. The customer's collective solutions enhance productivity and help clients deliver better experiences for end consumers.

What You’ll Do

• Design, develop, and maintain cloud-based applications and services that support our product ecosystem
• Build and maintain integrations with third-party systems and external partners
• Contribute to the development of backend services using C#, .NET, ASP.NET, Web APIs
• Design, deploy, and operate cloud-native services on Microsoft Azure, including Azure App Services and Azure Container Apps
• Efficiently utilize AI tools such as Github Copilot, among others, to automate processing of information, generate source code, and automate unit testing
• Apply strong engineering practices related to object-oriented design, security, performance, and maintainability

What You Bring

• Professional experience in software development, with deep expertise in object-oriented languages (C#/.NET required)
• Еxperience with Typescript/Angular
• Hands-on experience in managing and optimizing Azure SQL Database
• Demonstrated capability in leveraging modern coding assistants and AI tools - such as Claude, Copilot, and Cursor—to accelerate development workflows
• Proficiency in system monitoring and diagnostics using observability tools like Application Insights and SQL Profiler
• Proven track record in API design and versioning, including RESTful services and OpenAPI/Swagger standards
• Background in automated testing, utilizing unit testing frameworks (xUnit, NUnit) and test data builder patterns
• Extensive experience in building and scaling microservices architecture and event-driven patterns
• Proficiency in working with Entity Framework Core for efficient data access
• Demonstrated expertise in Test-Driven Development (TDD) and Domain-Driven Design (DDD) to build clean, maintainable software domains

English Level

Upper-Intermediate

Legal & Hiring Information

• the company is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more.
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions.
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs.
• Compensation details are shared with candidates at the early stage of the recruitment process.
• The offer is not binding until a signed contract is in place.

Your Benefits at the company

the company benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement
• Well-being program
• Team events & local benefits
• Sports compensation
• Referral bonuses
• Top-tier equipment provision

the company Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.