Agentic AI Engineer (Xora Portfolio Company)
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Before you apply
SalaryNo pay range posted
LocationSan Diego, California, United States
Work modehybrid
Typefull-time
SenioritySenior
Experience5+ yrs
DepartmentXVL
Company size10+ people
PostedAug 2, 2026 · 3mo ago
Verified live1d ago
May no longer be actively hiring
Posted by the company on Aug 2, 202650% of this company's open roles have been listed for 90+ daysNo pay range listed, though California requires one
At a glanceSummarised by Seekless from the posting.
Bachelor's or Master's degree in Computer Science or a related engineering field
5+ years building and shipping production software
Real depth building LLM or agent systems in production
Strong Python and solid engineering practice: async code, typing, testing, modular design, and code review
Hands-on experience building agentic or LLM systems in production: orchestration loops, tool-calling, structured outputs, and context and memory management for reliable long-running workflows
Experience working across multiple model providers behind a single abstraction, with routing, fallback, and a feel for the cost and latency trade-offs
Experience building retrieval systems end to end: embeddings, chunking, hybrid search, reranking, and vector databases
Experience with LLM evaluation and guardrails: building eval sets and harnesses, LLM-as-judge scoring, regression gating, and output-quality and safety checks
Experience instrumenting LLM systems for observability: tracing model and tool calls, versioning prompts, and using traces to debug and improve real behavior
Comfort owning ambiguous systems end to end in a fast-moving early-stage environment
Stateful agent-orchestration frameworks such as LangGraph or AutoGen, and durable-execution engines such as Temporal for long-running workflows
Experience building MCP tools or servers, or similar tool-calling integration layers
LLMOps and evaluation tooling such as MLflow or Langfuse for tracing, prompt versioning, and evaluation
Human-in-the-loop and interrupt-driven agent patterns for review and control
Applying LLMs to scientific or technical workflows, grounding reasoning in tool outputs and structured data
Fluency with modern AI coding assistants, or open-source contributions to AI or agent tooling
Skills
Python
async code
typing
testing
modular design
code review
LLM systems
agent orchestration
tool-calling
structured outputs
context management
memory management
vector databases
embedding
chunking
hybrid search
reranking
LangGraph
AutoGen
Temporal
MCP tools
MLflow
Langfuse
AI coding assistants
ABOUT ELEMYNT
ELEMYNT is an early-stage startup built by Xora Innovation. We develop applied intelligence that brings AI into the real world. Our platform combines advanced machine learning, high-performance simulation, and modern software engineering to accelerate the design, validation, and deployment of new materials. Our work sits at the intersection of AI, physics, and large-scale computation. The problems are hard, the stakes are high, and the impact is tangible.
ABOUT THE ROLE
This role builds the layer every LLM-powered feature on our platform is built on: one interface over many model providers, the agent orchestration that runs multi-step workflows, the retrieval and prompt systems that ground them, and the tracing and evaluation that keep them honest. It is foundational and deeply hands-on.
In this role, you’ll design agents that plan, call tools, and reason over the results, then make them dependable in production: traceable, evaluated, and safe to run with a person in the loop where it counts. Because the platform runs inside customers’ own secure environments, on their compute clusters, in their cloud, or across a hybrid of the two, the reasoning it produces has to stay auditable and its guardrails have to travel with the software.
Every LLM feature the team ships stands on this layer: what it can do sets what they can build, and how faithfully it reasons sets how far they can trust it.
WHAT YOU WILL DO
•
Build the provider abstraction that lets any workflow call, swap, or add a model provider by configuration, across commercial APIs and self-hosted endpoints, with structured-output validation, retries, and cost tracking.
•
Build the agent orchestration where a planning agent dispatches specialized sub-agents in parallel on a stateful framework, with durable checkpoints, conditional branching, and the context and memory management that keeps multi-step workflows coherent across long task horizons.
•
Build human-in-the-loop checkpoints so low-confidence or high-stakes steps route to a person before an agent proceeds.
•
Wrap existing platform capabilities as typed, registered tools the agents call, with a clean boundary between the agent layer and the systems it builds on.
•
Design retrieval end to end, from ingestion, embeddings, and chunking through hybrid search and reranking, and assemble the context that grounds each model call.
•
Build the prompt layer: versioned prompts, few-shot sets, and captured reasoning, so every change is tracked and every call is inspectable.
•
Expose agents and guardrailed model access as tools behind one integration point that backend services, the frontend, and notebooks all consume.
•
Instrument every model call, tool invocation, and agent run as traced spans with prompt, model, and tool lineage, so behavior and cost stay debuggable.
•
Build the evaluation framework, deterministic trace metrics alongside LLM-as-judge scoring for faithfulness, that gates changes and catches regressions before they ship.
WHAT WE ARE LOOKING FOR
•
Bachelor’s or Master’s degree in Computer Science or a related engineering field, and 5+ years building and shipping production software, with real depth building LLM or agent systems in production.
•
Strong Python and solid engineering practice: async code, typing, testing, modular design, and code review, plus a track record of shipping systems others depend on.
•
Hands-on experience building agentic or LLM systems in production: orchestration loops, tool-calling, structured outputs, and context and memory management for reliable long-running workflows.
•
Experience working across multiple model providers behind a single abstraction, with routing, fallback, and a feel for the cost and latency trade-offs.
•
Experience building retrieval systems end to end: embeddings, chunking, hybrid search, reranking, and vector databases.
•
Experience with LLM evaluation and guardrails: building eval sets and harnesses, LLM-as-judge scoring, regression gating, and output-quality and safety checks.
•
Experience instrumenting LLM systems for observability: tracing model and tool calls, versioning prompts, and using traces to debug and improve real behavior.
•
Comfort owning ambiguous systems end to end in a fast-moving early-stage environment.
NICE TO HAVE
•
Stateful agent-orchestration frameworks such as LangGraph or AutoGen, and durable-execution engines such as Temporal for long-running workflows.
•
Experience building MCP tools or servers, or similar tool-calling integration layers.
•
LLMOps and evaluation tooling such as MLflow or Langfuse for tracing, prompt versioning, and evaluation.
•
Human-in-the-loop and interrupt-driven agent patterns for review and control.
•
Applying LLMs to scientific or technical workflows, grounding reasoning in tool outputs and structured data.
•
Fluency with modern AI coding assistants, or open-source contributions to AI or agent tooling.
LOCATION
Singapore or United States. We’re hiring in both to reach the right person. Work model is on-site or hybrid, set per location.
CLOSING NOTE
If you don’t tick every box but this is clearly your kind of work, get in touch.