Staff Product Engineer, AI

About the role

Fin is seeking experienced engineers to join our AI Group and advance our customer agent technology. You will collaborate with machine learning scientists and product teams to translate research into functional, production-ready features for our global user base. In this capacity, you will own the design and execution of systems that bridge the gap between innovative AI research and reliable, user-facing functionality. The role requires you to build and maintain the foundational infrastructure that powers our primary AI products using Python and Ruby on Rails. You will be responsible for transitioning experimental proof-of-concept code into scalable, reliable production environments that meet strict operational standards. Furthermore, you will coordinate with cross-functional product teams to define and refine AI-driven user experiences, ensuring technical feasibility and product excellence. You will mentor team members and contribute to hiring and professional development initiatives, fostering a culture of technical excellence. Finally, you will establish high technical standards for performance and operational reliability across the organization, ensuring our systems are robust and efficient.

Key facts

What you'll do

• Architect and develop systems that support our primary AI products using Python and Ruby on Rails, focusing on scalability and maintainability.
• Translate complex machine learning concepts into robust production services, transitioning proof-of-concept code into scalable, reliable production environments.
• Partner with data scientists and product managers to coordinate and refine AI-driven user experiences, ensuring alignment between technical implementation and product goals.
• Manage the full software development lifecycle, from initial concepts and prototyping through design, implementation, testing, and final deployment.
• Implement and enforce high technical standards for performance, reliability, and operational excellence across the organization's software stack.
• Mentor team members by providing technical guidance and leadership, contributing to hiring decisions and professional development initiatives to build a strong engineering culture.
• Optimize existing systems to improve efficiency, reliability, and scalability, ensuring they can handle current and future demands.
• Collaborate with cross-functional stakeholders to gather requirements, define technical specifications, and ensure successful implementation of AI features.
• Conduct code reviews and ensure best practices are followed to maintain code quality and system integrity across the development lifecycle.
• Explore and evaluate new technologies and methodologies to drive innovation and continuous improvement in product development.

Requirements

• 10+ years of professional experience in software development, demonstrating a deep understanding of engineering principles.
• BSc degree in Computer Science, Mathematics, Statistics, or a related field providing a strong technical foundation.
• Strong technical fundamentals and a history of delivering high-impact work that drives business value.
• Proficiency in at least one high-level programming language such as Ruby, Python, or JavaScript, with the ability to write clean, efficient code.
• Ability to prioritize progress and outcomes over perfect solutions, making informed decisions in fast-paced environments.
• ML experience is not required, provided you possess strong engineering skills and a willingness to learn new concepts quickly.
• Demonstrated experience working in agile development environments, collaborating effectively with diverse teams.
• Excellent problem-solving skills and the ability to debug complex issues in production systems.

Nice to have

• Prior experience in statistical analysis or data-focused roles, providing insight into data-driven decision-making.
• Familiarity with machine learning systems, supervised and unsupervised learning algorithms, and transformer neural networks.

Practical notes

Compensation includes a competitive salary, equity, and regular performance-based reviews. Benefits include a pension scheme with a 4% match, comprehensive health and dental insurance for you and your dependents, life assurance, and a flexible paid time off policy. We provide daily lunches, a stocked kitchen, MacBooks, and relocation assistance to support your move. Parents receive paid maternity leave and 6 weeks of paternity leave, ensuring a supportive environment for all team members. We also offer a Cycle-to-Work scheme with secure storage, promoting sustainable and healthy commuting options. Fin maintains a neutral policy regarding social and political topics to ensure a focused work environment where collaboration can thrive. The engagement is hybrid, requiring a minimum of 3 days per week in the office located in Dublin, Ireland, to facilitate in-person collaboration and team cohesion. Candidates must be eligible to work in Ireland and comply with all local employment regulations. No specific deadlines for application submission are published; interested candidates are encouraged to apply at their earliest convenience to be considered for upcoming opportunities.