Senior Software Engineer

The role

You will lead the design and implementation of platform services and own technical decisions for AI products. You will build backend systems in TypeScript and Python and shape frontend experiences in JavaScript.

What you will do

• Lead the design and implementation of platform services
• Own technical decisions including architecture, APIs, data models, performance, and security
• Build and extend backend systems in TypeScript and Python
• Shape frontend experiences in JavaScript
• Drive the integration of LLM-based and agentic AI capabilities into production systems
• Define and enforce engineering standards including code review, testing, deployment, and incident response
• Embed AI-native tooling into daily workflow
• Work side-by-side with product, design, and data in the office

Required qualifications

• 3+ years of software engineering experience
• Track record of shipping impactful, production-grade systems
• Portfolio of work you led
• Deep proficiency in TypeScript and/or Python
• Solid JavaScript for frontend contributions
• Strong platform engineering instincts in distributed systems, API design, cloud architecture (AWS/GCP), and observability
• Fluent in AI/ML engineering including building on top of LLMs and prompt engineering
• Experience designing systems under constraints like latency, reliability, cost, and scale
• BS/BA in Computer Science
• In SF, committed to 5 days/week

Nice to have

• Graduate degree
• Production experience with conversational AI, dialogue systems, NLP pipelines, or agentic architectures
• Background in fintech, banking infrastructure, or regulated financial environments
• Experience being an early engineer at a startup that shipped successfully

Benefits

• 100% paid health, dental & vision care
• 401(k) & financial wellness perks
• Daily meals
• Commuter benefit
• Monthly wellness stipend
• Claude Enterprise + frontier AI tools
• Brand-new 21st-floor SF office
• Discretionary PTO
• Paid parental leave
• Mental health, wellness & family benefits
• Founding-team-tier equity
• Top-of-market base

About the company

interface.ai is the agentic AI platform for financial services, serving over 100 banks and credit unions. The company is cash-flow positive and backed by $30M in Series A funding.