Principal Application Modernization Engineer

Liatrio

Principal Engineer leading technical direction for modernization in AI-driven projects at Liatrio. Collaborating with clients to deliver innovative solutions and guide engineering practices.

Posted 4/20/2026full-timeRemote • 🇺🇸 United StatesLead💰 $170,000 - $200,000 per yearWebsite

About the role

Key responsibilities & impact

Define the scope of technical work related to deliverables and milestones of the engagement
Own the architectural direction of your workstream — making key technical decisions, documenting tradeoffs, and ensuring the team is building toward something coherent and maintainable
Responsible for code quality, architecture, and technical direction across the team
Write and review production code across the stack — your technical judgment sets the bar, and you're in the work alongside the team
Integrate AI and LLM capabilities into client applications — designing the architecture for agentic workflows, RAG pipelines, intelligent automation, and AI-augmented developer tooling, and guiding your team through implementation
Anticipate technical risk before it becomes delivery risk — surface issues early, define mitigation strategies, and communicate proactively
Participate in scoping discussions and SOW architecture for new and existing customers
Generate ideas, be willing to fail fast, and demonstrate with POCs
Drive knowledge sharing in and out of client engagements
Serve as the senior technical point of contact for your workstream — engaging directly with client engineering managers and directors on architecture, delivery strategy, and technical risk
Build trusted relationships with client technical leaders
Proactively identify opportunities to improve engineering practices and technical quality at the client, and drive that change
Participate in business development including client expansion conversations and SOW development
Responsible and accountable for the technical outcomes of your team
Write monthly feedback for all engineers on your workstream in collaboration with the Delivery Lead
Mentor engineers through real technical challenges — pairing on hard problems, reviewing architecture decisions, giving feedback that raises their game
Organize and break down complex work so the team can execute with clarity
Share responsibility for the morale and well-being of the Liatrio team on your engagement

Requirements

What you’ll need

8+ years of hands-on software engineering experience, with demonstrated ownership of complex technical workstreams
Must be authorized to work in the United States or Canada without sponsorship
Travel availability: 25-50% depending on client needs

Benefits

Comp & perks

Full benefits including unlimited PTO
Funded HSA option
401k match
Monthly LiveWell stipend
Quarterly company bonus

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

software engineeringcode qualityarchitectureAI integrationLLM capabilitiesRAG pipelinesintelligent automationPOC developmenttechnical risk managementengineering practices

Soft Skills

leadershipcommunicationmentoringrelationship buildingproblem-solvingknowledge sharingproactive identificationcollaborationorganizational skillsteam morale