AffiniPay, a leading fintech company based in Austin, Texas, is seeking a Fullstack Senior Software Engineer to modernize their MyCase legal practice management software. This role offers an opportunity to work on large-scale solutions that serve thousands of legal professionals. The position combines frontend and backend development, focusing on React and Ruby on Rails, while leading and mentoring team members. The company stands out with its impressive growth, being recognized in Inc. 5000's fastest-growing companies for 13 consecutive years. They offer a comprehensive benefits package including full healthcare coverage, equity options, and 16 weeks of parental leave. The role provides a chance to work with modern technologies while making a significant impact on the legal technology sector. AffiniPay's commitment to diversity and inclusion, coupled with their focus on professional development and work-life balance, makes this an attractive opportunity for experienced engineers looking to advance their careers in a growing fintech company.