Senior Engineer, Full-stack Custom Solutions

Company Overview

Clio is the global leader in legal AI technology, empowering legal professionals and law firms of every size to work smarter, faster, and more securely. We transform the legal experience by bettering the lives of legal professionals while increasing access to justice.

We are currently seeking a Senior Full‑stack Engineer to join our Engineering team. This role is available to candidates across Barcelona and Madrid, with preference in Barcelona. The Senior Full‑stack Engineer for the Customer Tooling Squad will play a critical role in Clio, overseeing complex technical challenges across the customer's ERP ecosystem and related systems. You will mentor junior engineers, collaborate with cross‑functional teams, and deliver high‑quality solutions that improve the customer experience and operational workflows.

• Work across the complete stack to design, develop, and implement new features and modern web components.
• Write and maintain clean, efficient, and reliable code for both front‑end and back‑end systems.
• Identify and resolve issues in existing and new code to ensure the smooth, continuous operation of web applications.
• Maintain and optimise APIs to ensure high performance and reliability.
• Implement dynamic user interfaces in the front‑end application, prioritising seamless user experiences.
• Lead projects through all phases from conception to finished product, collaborating with cross‑functional teams and stakeholders.
• Drive the modernisation of the tech stack, migrating legacy systems to modern frameworks and cloud‑native architectures to ensure scalability, maintainability, and performance.

• Bachelor’s degree in Computer Science, Engineering, or a related technical field.
• Delivered end‑to‑end solutions by combining 4+ years of solid experience in Ruby on Rails backend development with proficiency in JavaScript/Type Script frameworks to create high‑performance frontends.
• Proven experience with web components, including design and implementation, to build dynamic and reusable UI elements.
• Strong expertise in cloud‑based solutions, focusing on AWS environments, to build scalable and reliable systems.
• Strong knowledge of API design and management, ensuring high availability and performance.
• Excellent problem‑solving skills and the ability to troubleshoot and optimise complex codebases.
• Experience in Legal Tech, content platforms, or large‑scale data systems is desirable but not essential.
• Familiarity with search technologies.
• Fluent in Spanish and English.

Clio’s Total Rewards Program includes competitive, equitable salary and comprehensive benefits to support our teams.

• Competitive, equitable salary.
• Top‑tier medical and dental coverage at preferred employee pricing for you and your family, with access from Day
  1.
• Clio offers a flexible hybrid work environment with intentional in‑person gatherings to build connection.
• 23
  
  Days Paid Time Off + Company Observed Holidays including short Fridays as well as a summer schedule for work‑life balance.
• Professional development and growth options.
• Pet‑friendly workspace in our Barcelona office.
• Company events and social‑impact programs that reinforce our shared values, community, and culture.
• Clioversary recognition program with special acknowledgement at 3, 5, 7, and 10years.

Our team shows up as their authentic selves, and we are united by our mission. We are dedicated to diversity, equity, and inclusion and foster an environment where our teams feel included, valued, and enabled to do the best work of their careers, wherever they choose to log in from.

We believe that different perspectives, skills, backgrounds, and experiences result in higher‑performing teams and better innovation. We are committed to equal employment and encourage candidates from all backgrounds to apply. Clio provides accessibility accommodations during the recruitment process and will work with you to meet your needs.