Our client, a leading innovator in the FinTech space, is seeking a highly skilled Senior Full-Stack Developer to join their collaborative team in Boston, Massachusetts, US . This hybrid role offers the opportunity to work on cutting-edge financial technology solutions, combining in-office synergy with the flexibility of remote work. The ideal candidate will possess a strong command of both front-end and back-end development, with a passion for creating robust, scalable, and user-friendly applications. As a Senior Full-Stack Developer, you will be instrumental in designing, developing, and deploying complex web applications and APIs. Responsibilities include writing clean, maintainable, and efficient code, collaborating with product managers and designers to translate requirements into technical solutions, and contributing to architectural decisions. You will work with modern technology stacks, including frameworks like React or Angular for the front-end, and Node.js, Python, or Java for the back-end, alongside databases such as PostgreSQL or MongoDB. Experience with cloud platforms like AWS or Azure, microservices architecture, and CI/CD pipelines is highly valued. The successful candidate will also mentor junior developers, participate in code reviews, and advocate for best practices in software development, security, and performance. Qualifications: Bachelor's degree in Computer Science, Engineering, or a related field; Master's degree is a plus. 5+ years of professional experience in full-stack web development. Proficiency in front-end technologies (HTML5, CSS3, JavaScript, TypeScript) and modern frameworks (e.g., React, Angular, Vue.js). Strong experience with back-end development languages and frameworks (e.g., Node.js/Express, Python/Django/Flask, Java/Spring). Solid understanding of database technologies (SQL and NoSQL, e.g., PostgreSQL, MySQL, MongoDB). Experience with cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes). Familiarity with microservices architecture, RESTful APIs, and GraphQL. Knowledge of testing frameworks and methodologies (unit, integration, end-to-end testing). Excellent problem-solving, debugging, and analytical skills. Strong communication and collaboration abilities, with experience working in an Agile environment. Ability to thrive in a hybrid work model, contributing effectively both remotely and in-office. This is a remarkable opportunity to join a forward-thinking company, contribute to innovative FinTech solutions, and grow your career in a dynamic and supportive environment.