N-iX is a software development service company that helps businesses across the globe develop successful software products. During 20 years on the market and by leveraging the capabilities of Easter Europe talents, the company has grown to 2000+ professionals with a broad portfolio of customers in the area of Fortune 500 companies as well as technological start-ups. With its headquarters in Lviv, Ukraine, the company also has multiple development offices in the East European region and representative entities in the United States of America, Sweden, and Malta. The Client provides comprehensive operational support and a range of expert services to the world鈥檚 leading insurers, brokers, fleet managers and automotive manufacturers. Our 3,300 employees across ten countries deliver exceptional standards on a large scale for over 1,200 clients. We help the global insurance market to handle millions of claims each year in the most cost-effective and efficient ways possible. The Group is embarking on an exciting and challenging transformation program and our software solutions are a driving force behind this strategy using cloud computing and leading-edge design patterns. The Role: This is a great opportunity for an experienced Senior Full Stack Developer to join our Software Development team, being part of one of our existing scrum teams. Each agile team includes technical leadership, development, architecture, quality, product and project management roles. We are looking for a Senior Full Stack Developer comfortable with C# and Angular, with a proven history of building high-performance apps with a strong focus on system integrations and API-driven solutions. Key Responsibilities: Work on business requests and development improvements Develop, test, document and maintain our application back end build scalable and reusable code Provide realistic estimates for requests, fixes and new ideas Create unit tests Write clear and precise technical documentation Manage realistic work deadlines Participate in all the scrum ceremonies and be part of the team performance and continuous improvement Design and maintain integrations between internal and external systems Develop and evolve RESTful APIs used for system-to-system communication Ensure reliability, performance, and data consistency across integrations Own integration-related technical decisions, including security and data exchange approaches Knowledge and Experience: 5+ years of experience of Microsoft development stack including; .NET C#, SQL Server T-SQL. Important: .Net Core SQL Server, HTML, CSS, Javascript, Git, Angular Azure, .NET core, SOLID principles, Microservices architecture, Design principles, Jira. Strong experience in API design and backend integrations Hands-on experience integrating with third-party systems Good understanding of authentication and authorization mechanisms (OAuth2, JWT, API keys) Experience with asynchronous or event-driven communication patterns Ideally, you will have experience working with Scrum methodology in a variety of contexts; different team sizes, organizational cultures, distributed development, etc. Nice to have: Up to 1 year of experience with GenAI Personal Attributes: Self-organising problem solver. Able to think outside the box (open thinking). Strong ability to work effectively in a team. Collaborating, motivating and energizing others (Team player). Encourage and drive others to deliver high-quality, cutting-edge software. You will have attention to detail and have a proactive ethos. Always looking for continuous improvement. Excellent verbal and written communication skills, in English. We offer*: Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits *not applicable for freelancers