About the role

Aplyr's Quick Take

This role is about designing and building the infrastructure for LLM applications, focusing on full-stack development and AI-driven features for a web platform. It's an individual contributor position that requires hands-on work with data pipelines, retrieval systems, and user interfaces.

Good fit

Ideal candidates have at least 2 years of full-stack development experience, particularly with LLM frameworks and a solid grasp of both backend and frontend technologies. A collaborative mindset and a passion for creating intuitive AI experiences will help you thrive here.

Worth noting

The role emphasizes a hybrid approach, blending engineering with AI application design, which may appeal to those looking to work at the intersection of software development and advanced AI. The company is also focused on transforming scientific research through innovative tools.

Thank you for your interest in Uncountable Engineering!

Description

Uncountable is seeking experienced engineers to lead the transformation of our platform into an AI-first R&D ecosystem. We are building the next generation of tools that empower scientists at Fortune 500 companies to accelerate discovery through Generative AI.

As an LLM Applications Engineer, you will be the architect of our LLM infrastructure. You won't just be building interfaces; you will be designing the retrieval systems, agentic workflows, and data pipelines that bridge the gap between complex experimental data and actionable AI insights. Your work will directly modernize how the world’s leading researchers interact with their data.

Primary Responsibility

Your primary responsibility is to design, build, and scale the LLM infrastructure and user-facing AI features of the Uncountable Web Platform. This is a hybrid role requiring a deep understanding of full-stack development and the unique challenges of deploying LLMs in production.

Infrastructure: Implement and optimize RAG (Retrieval-Augmented Generation) pipelines, vector databases, and prompt management systems.
Feature Development: Build intuitive, AI-driven UI components that allow scientists to query, analyze, and visualize complex experimental datasets.
Integration: Connect LLM capabilities with our core SQL databases and data analysis engines to ensure high-fidelity, grounded AI responses.

Salary Range: $130K–$175K + Equity

Requirements

2+ years of software development experience with a focus on full-stack web applications.
Proven experience with LLM orchestration frameworks (e.g., LangChain, LlamaIndex, or Haystack).
Proficiency in Python and JavaScript/TypeScript: Ability to work across the AI backend and the React frontend.
Solid Engineering Fundamentals: Experience with API design, asynchronous processing, and performance optimization.

Preferred Qualifications

B.S. in Computer Science or a related technical field.
Experience with LLM Evaluation: Knowledge of how to measure and mitigate "hallucinations" in a scientific/technical context.
Familiarity with SQL: Specifically optimizing queries that serve as the context for LLM prompts.
Product Mindset: A passion for creating "LLM-first" user experiences that feel seamless rather than bolted-on.

Our Current Stack

Backend: Flask (Python), Postgres
Frontend: React (Typescript), Redux, Sass

Benefits

Competitive Salary and Equity
Health and Dental Insurance
401K with Employer Contribution

What's next? Learn more about Interviewing at Uncountable

Learn more about our engineering team: Check out our blog

Skills & Tags

react python java typescript javascript ai frontend backend

Aplyr's read

Uncountable is a niche technology firm specializing in data management for R&D in materials science, attracting professionals with a passion for innovation and precision.
Synthesized from recent postings & public sources

What's promising

•Uncountable offers a specialized platform catering to the unique needs of the materials science sector.
•The company is expanding its team across diverse roles, indicating growth and stability.
•Focus on advanced technologies like generative AI suggests a forward-thinking approach.

What to watch

•Niche focus may limit opportunities for those outside materials science.
•Rapid expansion can lead to growing pains and integration challenges.
•Limited public information about company culture and work-life balance.

Why Uncountable

•Specializes in data management solutions specifically for R&D in materials science.
•Integrates cutting-edge AI technologies into its platform offerings.
•Provides roles that blend scientific expertise with technological innovation.

Aplyr’s read is generated by AI from public sources. Was it useful?

About Uncountable

Uncountable

uncountable.com

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Uncountable Inc is a technology company that provides a platform for managing and analyzing data in the research and development sector, particularly in materials science.