Sr. AI Engineer, Labs

Higharc

1d • Remote

About The Position

Higharc is a VC-backed startup that is changing how new homes are designed and built. Join a founding team who’ve shipped products for Autodesk, Electronic Arts, Nike, and Apple. We have raised a total of $83M with support from top-notch venture capital firms and more than 18 strategic investors—industry leaders in construction, building products manufacturing, and distribution.
We are hiring a Senior AI Engineer as a foundational member of Higharc Labs. This is a role for an entrepreneurial AI engineer who can move from problem definition to shipped software quickly, building agent workflows that are useful, reliable, and safe in production.

Requirements

• 7+ years experience shipping production software, including customer-facing AI/LLM features
• Ownership of ambiguous, high-impact problems from concept through deployment and iteration
• Experience building AI agent systems: tool use, context management, and orchestration loops
• Experience designing and operating RAG systems, including vector DB-backed retrieval pipelines
• Experience defining or operating evaluation systems for non-deterministic AI outputs
• Strong backend systems skills, including stateful services and real-time/streaming workflows
• Experience managing AI costs in production (model selection, context budgeting, caching, and usage controls)
• Experience collaborating across research, ML platform, and product teams to move models into production
• Product engineering instincts: you can simplify scope and prioritize what creates measurable value
• Clear written and verbal communication in a remote, async environment

Nice To Haves

• Experience as a technical founder or early engineer at a high-growth SaaS company
• ML depth: fine-tuning, rigorous model evaluation, and the ability to apply current ML/LLM research in product systems

Responsibilities

• Own AI experiments end-to-end: shape hypotheses, define success criteria, build, ship, measure, and iterate
• Partner with ML Engineering to productize ML prototypes and harden them for production, while leading graduation criteria across technical readiness and product readiness: contracts, failure modes, eval harnesses, user validation, reliability, controlled model updates, and cost controls
• Design agent action schemas and tool contracts that make model behavior predictable under real-world variance
• Build retrieval systems (RAG) for agent context: chunking/indexing strategies, vector search quality, and grounding behavior
• Build orchestration systems for agent workflows: stateful sessions, streaming, async job coordination, and failure recovery
• Build evaluation loops that combine deterministic validation, domain heuristics, and model-based review
• Design human-in-the-loop flows for approvals, intervention, and safe execution of high-impact actions
• Talk directly with users and internal stakeholders to refine problem framing and validate assumptions early

Benefits

• Higharc offers competitive salaries with significant equity, in a fast-growing, well-funded company.
• Personal healthiness is an important value for us- we provide comprehensive medical, dental, and vision coverage, with unlimited PTO, and meaningful maternity/paternity leave to all U.S based employees that are full-time.
• You'll also have access to other big-company benefits such like short and long-term disability plans and a 401K.
• Haven't worked remotely before? We provide a stipend to create the ideal home office.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed
• Number of Employees: 1-10 employees