Senior Backend Engineer - Fynn (AI Credit Coach)
Core
Building the backend intelligence layer for an AI credit coach that analyzes user financial profiles to deliver personalized guidance, automate debt negotiation, and prevent credit mistakes at scale.
Role type
Senior Backend Engineer (AI/LLM Systems)
Builds
Conversational AI layer, personalization engine, LLM-powered agent workflows, and orchestration systems connecting users to financial tools.
Domain
Fintech / Consumer Credit / AI
Deliverable
production ML models | product features
Required skills
distributed systems design, background job processing, database optimization, caching strategies, API design, observability, reliability engineering
Preferred skills
LLM product development (RAG, agentic workflows, prompt engineering), AI quality/safety systems (evaluation, guardrails), payment systems infrastructure, fintech domain knowledge, technical leadership, mentorship
Technologies
LLM providers, retrieval systems, voice agents, credit bureau data integrations, background job queues (Sidekiq/Resque)
Responsibilities
Design and implement core backend systems for conversational AI and personalization; build LLM-powered workflows and agents with tool-calling; own evaluation infrastructure for accuracy, tone, and compliance; build systems to detect financial challenges and surface tailored next steps; integrate with internal services and third-party credit/financial providers; enhance observability and fault tolerance for AI-critical systems; evolve systems from reactive to proactive guidance.
Seniority
Senior, hands-on IC with technical leadership