Fullstack Developer (.Net/Angular)

We are looking for an experienced C# Fullstack Software Engineer to join a team responsible for the further development and maintenance of a specialized scientific platform used in the pharmaceutical research domain. The solution leverages high-performance computing capabilities to support advanced biomolecular modeling and analysis, enabling scientists to gain insights into antibody structures and developability characteristics. This role offers the opportunity to work on modern and legacy systems while contributing to the evolution of a business-critical platform. This is a 1 FTE position. Work model: 100% remote Responsibilities Design, develop, and maintain enterprise-grade applications using C# , .NET Framework , and .NET Core Define system architecture, technical solutions, and development best practice Build and optimize scalable, secure, and high-performance APIs and microservices Collaborate with product managers, architects, and cross-functional teams Drive code quality through code reviews and engineering standards Mentor and support junior and mid-level developers Identify and resolve performance bottlenecks and system issues Contribute to DevOps practices, CI/CD pipelines, and automation initiatives Maintain and enhance legacy .NET applications and services Support frontend development activities using Angular and AngularJS Requirements 10+ years of experience in software development with strong expertise in C# and .NET technologies Deep understanding of ASP.NET Framework , Web API , MVC , Windows Services , WinForms , and WCF Services Strong knowledge of Object-Oriented Design (OOD) and design patterns Expertise in Entity Framework Core , LINQ , and ORM tools Extensive experience with RESTful APIs and microservices architecture Strong experience with SQL Server , database design, and performance optimization Experience with multithreading , asynchronous programming , and application performance tuning Proficiency with Git and modern version control practices Experience with Angular and legacy AngularJS applications Experience managing SQL Server Databases and On-Premises SQL Server environments Strong problem-solving skills and ability to work independently in a complex technical environment We offer Ongoing support from a dedicated agent , taking care of your project continuity, client contact, necessary formalities, work comfort and development, Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors, Access to 7N Learning & Development – a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events – technical, business, and lifestyle, Spectacular integration events , both for you (e.g., annual Kick-Off trip , Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres), Professional development not only during the project – you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients, Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years, A complete benefits package , including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad. About 7N Constantly searching for projects, difficult rate negotiations, lack of development support – sound familiar? At 7N, you gain not only stability of contracts but also the personal involvement of a dedicated agent who ensures your professional comfort and continuous access to development initiatives. Our goal is to provide you with stable and comfortable cooperation, contributing to your success as an IT expert and the success of our clients. We build long-lasting relationships based on Scandinavian values and 30 years of experience in creating IT solutions for over 200 organizations.