Full Stack Developer

Promise Group
is a leading Microsoft partner in CEE region, offering a wide range of products and services for clients from various economic sectors, including finance, telecommunications, media, energy, manufacturing, trade, services, public administration, education, and healthcare. The company has been operating since 1991 and, since 1996, has been the largest provider of Microsoft solutions in Poland. Promise Group specializes in software licensing optimization, IT systems design, implementation, maintenance, and business application development.

We are currently seeking talented individuals to join our team in the role of Full Stack Developer.

Key Responsibilities

• Developing the product according to the business requirements and coding standards.
• Defining the ideas for the quality improvement and limiting cost of delivering the product.
• Mentoring developers and supporting them in skill development.
• Supporting team members with technical activities like setting up environments, defining technical solutions when implementing user stories.
• Performing technical analysis, preparing ADL with Architecture and Design, Vision and Scope documents.
• Preparing technical input for offers.
• Representing Promise Group in front of a wider audience and on meetings with the customer.
• Leading meetings with the customer technical teams (trainings, handovers, requirements gathering etc.) and internal project teams.
• Acting as a partner to the analyst and providing technical support by doing feasibility studies.
• Performing code review and sharing vital comments on how to improve code quality.
• Preparing technical project documentation (Adm & Op guides, DR & Backup, etc.).

Our Requirements

• Minimum 7 years of experience in programming within the .NET platform.
• Solid experience with containerization technologies (e.g. Docker, Kubernetes, or equivalents).
• Practical knowledge of Microsoft Azure.
• Experience with at least one of the following: ASP.NET MVC, WPF, SignalR, WCF, or Web API.
• Strong understanding of object-oriented design principles (SOLID, DRY) and experience with TDD or similar agile development practices.
• Experience with Entity Framework or another ORM library.
• Hands-on experience with relational (SQL) or NoSQL databases.
• Proficiency in Visual Studio and experience developing enterprise-class applications using IIS.
• Experience building services with communication protocols such as SOAP, REST, or SignalR.
• Experience with at least one enterprise-class server (IIS) and one modern front-end framework , Angular, or React).
• Solid knowledge of HTML, CSS, and JavaScript.
• Familiarity with Web API technology.
• Experience with CI/CD pipelines, static code analysis tools, unit testing frameworks (e.g. xUnit), and version control (GIT).

• At least one of the following certifications:

• Microsoft Certified: DevOps Engineer Expert (AZ-400)

• CISSP (Certified Information Systems Security Professional)

• Fluent English.

We Offer

• Stable employment with one of Microsoft's top partners in Europe
• Flexible work model: remote or hybrid, depending on your preference
• A stable position with long-term growth and mutual commitment
• Team-building events, company trips, and employee-led initiatives
• Clear career paths and development opportunities within the organization

Our Values
Promise Group
is dedicated to collaboratively enhancing technological competencies and inspiring individuals and organizations to achieve their full potential. Our culture is built on open communication, mutual respect, responsibility, trust, and commitment. We prioritize transparent dialogue and active listening, value diverse perspectives, and maintain healthy relationships by addressing concerns constructively. We take responsibility for our actions, keeping our promises and learning from mistakes. Trust is fundamental; we avoid superficial judgments and build strong connections. Our commitment to continuous improvement drives us to hone our skills, tackle new challenges, and pursue innovative initiatives, ensuring we make a positive impact on our clients, employees, and the broader community.