[Remote] Principal AI Engineer

Note: The job is a remote job and is open to candidates in USA. Taxwell is a leading digital tax filing platform formed from the combination of Drake Software and TaxAct. They are seeking a Principal AI Engineer to lead the design, development, and deployment of AI-powered systems across the company, focusing on customer-facing capabilities and internal platforms.ResponsibilitiesDesign and build AI-powered applications for internal users and customersArchitect and deploy agentic and multi-agent systems that automate workflows and solve complex business problemsBuild and optimize retrieval-augmented generation (RAG) systems using proprietary data and knowledge sourcesFine-tune, adapt, and evaluate foundation models for domain-specific use casesDevelop shared AI platforms, services, and tooling that enable teams to build AI-powered solutions efficientlyEvaluate and integrate commercial, open-weight, and frontier AI modelsPartner with Product, Engineering, Operations, Security, and business stakeholders to identify and deliver high-impact AI initiativesEstablish best practices for AI architecture, evaluation, observability, governance, and reliabilityMeasure system effectiveness through experimentation, telemetry, and user feedbackSkills8+ years of experience in software engineering, ML, NLP, applied AI, Data Science, or related disciplinesProven experience designing, deploying, and operating production AI systemsStrong hands-on experience with LLMs, RAG, agent orchestration, and AI-powered applicationsExperience designing and deploying agentic and multi-agent systemsExperience fine-tuning, adapting, or evaluating foundation models using techniques such as SFT, LoRA, QLoRA, reinforcement learning approaches, or other parameter-efficient methodsStrong understanding of model behavior, embeddings, retrieval systems, evaluation frameworks, and AI system performanceStrong Python development skillsExperience with vector databases and semantic retrieval architecturesExperience deploying cloud-native applications on AWS, Azure, or GCPStrong systems design and architectural skillsBackground in machine learning, NLP, information retrieval, applied AI, or data scienceExperience with MCP (Model Context Protocol), tool integration frameworks, and agent communication architecturesExperience with LangGraph, LangChain, ADK, CrewAI, AutoGen, or similar frameworksExperience building AI platforms, copilots, or workflow automation solutionsExperience developing customer-facing AI productsExperience building vertical AI applications or domain-specific AI productsExperience in regulated industries such as fintech, tax, healthcare, or financial servicesCompany OverviewTaxACT develops a tax preparation software that offers guidance and ensures a maximum tax refund. It is a sub-organization of Blucora. It was founded in 1998, and is headquartered in Cedar Rapids, Iowa, USA, with a workforce of 51-200 employees. Its website is http://www.taxact.com/.Company H1B SponsorshipTaxAct has a track record of offering H1B sponsorships, with 8 in 2025, 6 in 2024, 11 in 2023, 14 in 2022, 16 in 2021, 13 in 2020. Please note that this does not guarantee sponsorship for this specific role.