Senior AI Developer

Clickup; United States; Remote; USD 140,000 - 210,000; Full time

Job summary

ClickUp is hiring a Senior AI Engineer to own the AI evaluation stack, including golden datasets, LLM-as-judge, and automated scorers, while shaping the core agent harness and model routing. You will design self-improvement loops, benchmark models, and ensure scalable AI platform services across deployment and lifecycle management.

Ideal candidates combine backend engineering depth with hands-on ML system experience and strong collaboration across product and data teams, enabling reliable

Qualifications

• 5+ years of software engineering experience, including 2+ years building production LLM or ML systems.
• Hands-on experience building LLM evaluation systems in production (golden datasets, LLM-as-judge, judge calibration, offline and online evals).
• Strong experiment design and statistical rigor, including A/B testing, offline vs. online metrics, and separating real regressions from noise.
• Proven track record applying LLMs and AI models to real-world product features.
• Proven experience integrating and managing multiple LLMs, including benchmarking, routing, and cost/latency/quality tradeoffs.
• Deep expertise in backend engineering, distributed systems, and cloud-native tech (Kubernetes, Docker, AWS/GCP/Azure).
• Strong programming skills in Python (preferred), Go, TypeScript, or similar languages.
• Proficiency in orchestration frameworks and workflow engines (LangGraph, Airflow, Ray, or similar).
• Familiarity with search and retrieval technologies and their integration into AI-driven apps.
• Excellent collaboration and communication skills in cross-functional teams.
• Passion for staying at the forefront of AI and applying new technologies at scale.

Responsibilities

• Design, build, and own ClickUp's AI evaluation system, including golden datasets, LLM-as-judge and automated scorers.
• Build and evolve the core agent harness, and the AI that performs well on evals, aligning with product and engineering.
• Build self-improvement loops where agents modify other agents or prompts and rerun evals automatically.
• Benchmark new models and own model selection, routing, and fallback strategies across providers.
• Architect, design, and implement scalable AI platform services for deployment, orchestration, and lifecycle management of LLMs.
• Build and maintain robust APIs and backend systems that integrate AI-powered features into ClickUp's core platform.
• Develop infrastructure for model serving, monitoring, logging, and automated evaluation for reliable AI services.
• Drive best practices in AI privacy, security, and compliance, including data anonymization and secure handling.
• Collaborate cross-functionally with product, frontend, and data teams to deliver reliable AI experiences.

Skills

5+ years software eng

LLM evaluation systems

Experiment design

LLM applications

LLM orchestration

Backend engineering

Python/Go/TypeScript

Orchestration tools

Search tech

Collaboration

AI leadership

Tools

Kubernetes

Docker

AWS/GCP/Azure

Job description

At ClickUp, we're building the future of work: the first truly converged AI workspace unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context‑driven AI. We are an AI‑native company. Every team member is expected to leverage AI daily, and we evaluate AI fluency as part of our hiring process. Join us and help redefine what's possible.

We're looking for a highly skilled and experienced Senior AI Engineer to join our ClickUp Engineering team, with a focus on AI evaluations. You'll own how we measure and improve the quality of ClickUp's AI: building the eval systems that tell us how well our AI is performing, the core agent harness, and the AI that performs well on those evals. You'll work on backend systems that make AI‑powered capabilities scalable, reliable, and secure, while working hands‑on with LLMs to solve real user problems and drive product innovation.

Key Responsibilities:

• - Design, build, and own ClickUp's AI evaluation system, including golden datasets, LLM-as-judge and automated scorers, regression detection, and quality tracking across AI features.
• - Build and evolve the core agent harness, and the AI that performs well on those evals, partnering closely with product and engineering to define what \"great\" looks like.
• - Build self‑improvement loops where agents modify other agents or prompts, rerun evals, and iterate automatically.
• - Benchmark new models as they're released and own model selection, routing, and fallback strategies across providers (e.g., OpenAI, Anthropic, Google, open-weight), balancing quality, latency, and cost.
• - Architect, design, and implement scalable AI platform services that support the deployment, orchestration, and lifecycle management of LLMs and other AI models.
• - Build and maintain robust APIs and backend systems that integrate AI‑powered features into ClickUp's core platform.
• - Develop infrastructure for model serving, monitoring, logging, and automated evaluation to ensure high reliability and performance of AI services in production.
• - Drive best practices in AI privacy, security, and compliance, including data anonymization, secure data handling, and regulatory adherence.
• - Collaborate cross‑functionally with product, frontend, and data teams to deliver seamless, reliable, and user‑centric AI experiences.

Qualifications:

• - 5+ years of software engineering experience, including 2+ years building production LLM or ML systems.
• - Hands‑on experience building LLM evaluation systems in production (golden datasets, LLM-as‑judge, judge calibration, offline and online evals), tied to real product quality.
• - Strong experiment design and statistical rigor, including A/B testing, offline vs. online metrics, and separating real regressions from noisy or variable results.
• - Proven track record of applying LLMs and AI models to real‑world, customer‑facing product features.
• - Proven experience integrating and managing multiple LLMs, including benchmarking, routing, and cost/latency/quality tradeoffs.
• - Deep expertise in backend engineering, distributed systems, and cloud‑native technologies (e.g., Kubernetes, Docker, AWS/GCP/Azure).
• - Strong programming skills in Python (preferred), Go, TypeScript, or similar languages used for backend and AI platform development.
• - Proficiency in orchestration frameworks and workflow engines (e.g., LangGraph, Airflow, Ray, or similar).
• - Familiarity with search and retrieval technologies and their integration into AI‑driven applications.
• - Excellent collaboration and communication skills, with a track record of working effectively in cross‑functional teams.
• - Passion for staying at the forefront of AI and applying new technologies to solve real‑world problems at scale.

Nice to Have:

• - Background in data science, applied science, or machine learning engineering.
• - Experience with eval tooling (e.g., Braintrust, LangSmith, Weave, Arize, or in‑house frameworks).
• - Experience with model routing, AI gateways, or inference optimization.

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Equal Opportunity Employer

ClickUp is an Equal Opportunity Employer, and qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.

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If you are a Philippine Job Applicant, please also see our Philippine Data Privacy Notice https://t333.s.clickup-attachments-stg.com/t333/d9a53ce2-6d2c-48cd-84b1-ed4e525f9613/Philippine%20Data%20Privacy%20Notice_2024.pdf?view=open for further details.

Visa Sponsorship

Please note we are unable to sponsor or take over sponsorship of an employment visa for roles outside of engineering and product at this time. Sponsorship for engineering and product roles is not guaranteed, but is instead based on the business needs for that specific role at that time. Please reach out to the recruiter with any questions.

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AI Processing Notice

ClickUp may use artificial intelligence and machine learning technologies to help review and screen candidates' employment applications against role‑related criteria. These tools support, but do not replace, human decision‑making. If you have questions or need an accommodation in the recruitment process, please contact us at [e-mail].