Senior Full Stack Engineer (AI/LLM Platform)

Senior Full Stack Engineer (AI/LLM Platform)

Location: Remote
Department: Engineering
Reports to: Chief Product & Innovation Officer

About Kasisto

Kasisto is the creator of KAIgentic , the leading conversational and agentic AI platform for financial institutions. Our mission is to enable banks to deploy intelligent digital agents that are trusted, compliant, and deeply knowledgeable. With KAIgentic , we are redefining enterprise AI by giving organizations the power to build and orchestrate humanlike agents across customer, employee, and operational journeys.

Role Overview

We are seeking a Senior Full Stack Engineer to join our core platform team. You will design, build, and scale the next generation of KAIgentic , integrating large language models, retrieval systems, and intelligent orchestration across channels. This role blends hands-on development with architectural leadership in a highly collaborative and fast-moving environment.

What You’ll Do

• Design and implement scalable full stack applications using React , TypeScript , and FastAPI


• Build backend microservices in Python with SQLAlchemy and PostgreSQL (including vector extensions)


• Develop and orchestrate LLM workflows using LangChain and LangGraph , integrating multi-provider models (OpenAI, Anthropic, Google)


• Implement RAG patterns , embedding pipelines, and vector search for intelligent knowledge retrieval


• Optimize application performance, reliability, and security across Docker/Kubernetes environments


• Collaborate with AI researchers, product managers, and UX teams to deliver intuitive, production-grade AI experiences


• Uphold testing, observability, and CI/CD best practices across the stack


• Contribute to system design discussions, documentation, and technical roadmap decisions

Core Skills

• Frontend: React (hooks, routing, state management), TypeScript (strict mode), Material-UI, Vite


• Backend: FastAPI, async Python, REST API design, Pydantic validation


• Database: PostgreSQL, schema design, migrations, vector search


• AI/LLM: LangChain, LangGraph, RAG workflows, multi-LLM orchestration


• Infrastructure: Docker, Kubernetes, Helm, Kong Gateway, RabbitMQ, Redis


• Security: OAuth2/OIDC, Keycloak, API authentication


• Testing: Vitest/Jest, Playwright, pytest, CI/CD pipelines

Nice to Have

• Experience with Java-based legacy systems or modernization projects


• Familiarity with enterprise compliance (SOC2, GDPR, FedRAMP)


• Background in multi-tenant SaaS or large-scale distributed systems

Why Join Kasisto

• Work on KAIgentic , one of the most advanced agentic AI platforms in financial services


• Collaborate with a world-class team shaping the future of digital banking and intelligent automation


• Build products used by leading financial institutions worldwide


• Competitive compensation, equity, and flexible remote work