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Fin is an AI Customer Agent company building the highest-performing AI customer support solution on the market. The platform enables businesses to deliver always-on customer support across service, sales, and ecommerce channels, powered by proprietary AI models. Founded in 2011, Fin is one of the largest private software companies globally with nearly 30,000 customers.
As a Senior Product Engineer, you will solve real customer problems through smart application of technical expertise within multidisciplinary product teams. You'll work alongside designers, product managers, researchers, and data analysts to build both backend and frontend systems.
Key responsibilities include:
- Developing technical plans and contributing to architectural decisions as the platform scales to serve tens of millions of users daily
- Writing Ruby code that integrates AWS, infrastructure, platform, and SaaS technologies forming Fin's backend core
- Shipping production changes on day one and features within the first week, with 100+ deployments per weekday
- Building with industry-leading AI-powered developer tools that reduce friction and enable focus on meaningful problems
- Mentoring engineers and interviewing candidates to grow team capacity
You'll tackle exciting scaling challenges across areas including messenger composer, rule matching, deliverability, security, app availability, and machine learning.
Required qualifications:
- 5+ years of software engineering experience, preferably building SaaS products, with demonstrated significant impact
- Deep knowledge of a high-level programming language (Ruby, Python, JavaScript, etc.); language flexibility is valued
- Experience collaborating directly with product teams and designers with proven track record of customer value delivery
- Experience with distributed systems
- Pragmatic approach to cross-disciplinary teamwork
