Senior Full-stack Engineer (React+.Net)

About the Role

As a Senior Full Stack Developer, you will play a pivotal role in designing, developing, and maintaining our web applications, ensuring high performance and scalability. You will work closely with cross-functional teams to deliver high-quality software solutions while contributing to projects that integrate advanced machine learning models, including large language models (LLMs), to deliver personalized user experiences and innovative features. You'll be part of a small, collaborative team that values continuous improvement and embraces the latest in technology.
 
Our technology stack includes .NET Core, C#, React.js, Node.js, Typescript, SQL Server 2019, Docker, Kubernetes, Google Analytics, and Power BI.  

Our ecosystem includes 170 connected applications and services, our main database is 2 TB, our sites handle 1 million visitors a day and 2 billion requests a month, and we release changes to production several times a day. We are a continuous integration and continuous deployment (CI/CD) organization. 

What You’ll Do

• Guiding the team in making well-informed technical decisions that enhance the quality and maintainability of our solutions. 
• Collaborating with cross-functional teams to demonstrate how they can effectively leverage our infrastructure to meet their objectives. 
• Designing, developing, and maintaining robust, scalable, and efficient web applications, backend logic modules and database structure.
• Identifying and implementing strategies to improve the stability, performance, and scalability of our applications and services. 
• Responding promptly to production incidents, employing creative problem-solving skills to minimize downtime and mitigate potential issues. 
• Mentoring and supporting team members, fostering a culture of continuous learning and technical excellence. 
• Conducting code reviews and ensuring adherence to coding standards and best practices across the team. 
• Participating in the evaluation and integration of new technologies, including AI and automation tools, to drive innovation and efficiency. 

What We’re Looking For

• Minimum of 5 years of professional experience in full stack development.
• Extensive experience with React.js, including state management (Redux, Context API) and component-based architecture.
• Proficiency in .NET frameworks, C#, and data access technologies.
• Familiarity with Unit / Integration tests using any of Jest, NUnit, Playwright, React Testing Library.
• Strong knowledge of front-end technologies such as HTML5, CSS3, JavaScript, and TypeScript.
• Familiarity with database systems such as SQL Server or MySQL.
• Strong knowledge of design and architectural patterns, SOA design & web service development.
• Strong understanding of development processes.
• Experience with LLMs / Generative AI tools (e.g., OpenAI, Copilot, Cursor).
• Experience with Web Page performance optimization and measurement will be a plus.
• Degree in Computer Science, a related discipline or equivalent work experience.
• Upper-intermediate level of English.
• Excellent problem-solving and analytical skills, with a keen attention to detail.
• Strong communication and interpersonal skills, with the ability to work effectively in a team-oriented environment.
• Ability to manage multiple tasks and prioritize effectively in a fast-paced environment.
• Demonstrated leadership abilities, with a track record of mentoring and guiding junior developers.