Jobs in the United States

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Added 1 min ago
SW
Test Technician
Spartronics Watertown LLC
Watertown, SD
- $22 to $26 USD / hour
…and equipment. You will ensure that products, services and systems meet certain standards of quality while following defined procedures and…
Added 1 min ago
Agentic Workflow Engineer
WGU Corporation
Salt Lake City, UT
The Agentic Workflow Engineer is responsible for designing, developing, analyzing, and implementing AI-enabled workflows and agentic solutions that optimize institutional business processes…
Added 1 min ago
ML
Senior Software Engineer, API
Meshy LLC
United States
- $150,000 to $300,000 USD / year
- Own the core systems behind the Meshy API and keep it secure, reliable, and performant as it scales.
Added 1 min ago
Electrical Engineer I
Generac Power Systems Inc
Waukesha, WI
The Electrical Engineer I is responsible for providing electrical engineering solutions for the product development projects assigned to them including interfacing with cross functional…
Added 2 mins ago
CO
Public Utilities Director
County of Anson
WADESBORO, NC
- $75,071 to $130,213 USD / year
· Plans, organizes, directs, and coordinates activities of all divisions and facilities involved in management of water, wastewater, and reclaimed water systems for the County.
Added 2 mins ago
Solution Architect Expert
PNC Bank NA
United States
Hands-on experience building production systems with LLMs and agentic AI: agent orchestration, tool use, RAG, evaluations, guardrails and human-in-the-loop design
Added 3 mins ago
Lead, Sol-Gel Equipment Engineering
Valar Atomics
Torrance, CA
The Lead Engineer for Sol-Gel Equipment owns the design of our sol-gel systems end to end: from skid design through fabrication, factory and site acceptance testing, commissioning, and…
Added 4 mins ago
Software Engineer Senior-1
Nationwide Children's Hospital
Columbus, OH
Oversees the documentation of systems and processes for future reference and training purposes. Audits current computational systems and processes.
Added 4 mins ago
Software Engineer II - Flows Experience
Klaviyo
Boston, MA
We want a Full Stack Engineer who likes owning features end to end, from the React canvas down to the Python services and APIs underneath. You’ll work closely with Flows Platform, the team…
Added 4 mins ago
Manufacturing Engineer - 2nd Shift
Integra
Houston, TX
The Manufacturing Engineer - Second Shift is responsible for the design, implementation, and continuous improvement of manufacturing processes within the production environment. This…
Added 5 mins ago
Field Service Engineer - Roll Forming
Cidan Machinery Inc.
Peachtree City, GA · New York, NY · MI · UT · WA · FL · IL · TX
We are seeking a highly skilled Field Service Engineer - Roll Forming to serve as a technical subject-matter expert supporting our growing roll-forming product line and the reliable…
Added 5 mins ago
SC
Senior Site Reliability Engineer, Agentic Automation
SewerAI Corporation
Remote, United States
- $150,000 to $190,000 USD / year
We're hiring a senior engineer to bring AI agents into how the whole company works. You'll find the repetitive, manual work that doesn’t need to exist, in engineering and well beyond it,…
Added 5 mins ago
GH
IGS Calibration Engineer
GE HEALTHCARE
Remote, United States
- $60,000 to $90,000 USD / year
Must have and maintain a valid Driver's License
Added 7 mins ago
A
Manufacturing Test Engineer
Actalent
Bellevue, WA
- $90 to $110 USD / hour
Job Title: Manufacturing Test Engineer Motors and ActuatorsJob DescriptionThis role focuses on designing, developing, and executing manufacturing test programs for electric motors,…
Added 7 mins ago
A
Embedded Software Engineer
Actalent
Phoenix, AZ
- $50 to $65 USD / hour
A fully onsite option is also available, based in Cedar Rapids, Iowa, five days per week
Added 7 mins ago
A
Mechanical Engineer
Actalent
GILBERT, AZ
- $41 to $65 USD / hour
Job Title: Mechanical EngineerJob DescriptionThis Mechanical Engineer role focuses on the design and development of ground control shelters and enclosures used as communications and…
Added 7 mins ago
Mechanical Engineer
Actalent
New Braunfels, TX
Job Title: Mechanical EngineerJob DescriptionThis role offers an early-career Mechanical Engineer the opportunity to support the design, development, testing, compliance, and manufacturing…
Added 7 mins ago
Senior Electrical Engineer
ASML US, LP. (US30)
Wilton, CT
Minimum of 4 years of relevant work experience required
Added 7 mins ago
Upgrade Install and Relocation Engineer - DUV
ASML US, LLC. (US01)
N Phoenix, AZ
Valid driver's license required
Added 7 mins ago
AU
Senior Electrical Engineer
ASML US, LP. (US30)
Wilton, CT
- $131,000 to $190,000 USD / year
Minimum of 4 years of relevant work experience required
Added 7 mins ago
Lead GenAI Forward Deployed Engineer, YouTube GTM Operations
YouTube
San Bruno, CA · New York, NY · Mountain View, CA
Experience designing multi-agent systems (ReAct, tool-calling), MCP, and orchestration frameworks.
Added 7 mins ago
Senior Static Timing Engineer
Google
Sunnyvale, CA
As a Static Timing Engineer on the chip implementation team, you will work on the physical implementation of ASICs using advanced technology nodes. You will work on constraint development…
Added 8 mins ago
Commissioning Engineer - High Purity
Hoffman Construction Company
Boise, ID · ID · Hauser, ID · Kuna, ID · Moscow, ID · Post Falls, ID · Lewiston Orchards, ID
Position Summary: The High Purity Field Commissioning Engineer will lead our commissioning team and information from start to finish for large semiconductor project. The High Purity Field…
Added 8 mins ago
SO
Transportation Engineer 3
State of Washington
Union Gap, WA
- $6,708 to $9,019 USD / month
WSDOT is currently seeking a skilled Transportation Engineer 3 in Union Gap, WA, to support work zone safety operations throughout the South Central Region. In this role, you will serve as…
Added 9 mins ago
Backend Developer
Comcast (CC) of Willow Grove
PA
As a software engineer in the NOMAD Engineering team you will be part of a team that is building next generation access and core networks which will help deliver HSD, Voice and Video…

Cresta

AI Agent Evaluation Engineer

Remote, United States

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Job details

Posting language: English
Posted: Nov 12, 2026

Original job description

Cresta unlocks the true potential of the customer experience, turning every conversation into a competitive advantage. Cresta’s unified AI platform combines conversational AI agents, real-time human agent augmentation, and comprehensive conversation intelligence to drive revenue and efficiency gains across every channel. The world’s leading companies, including United Airlines, Cox Communications, and Marriott, use Cresta to power world-class customer experiences every day.

Born from the Stanford AI Lab, Cresta has raised more than $270 million from the world’s leading investors, including a16z, Greylock, and Sequoia. Cresta’s leadership includes some of the leading minds in AI today. Our CEO, Ping Wu, founded and led Google's Contact Center AI and Vertex AI platforms before joining Cresta to build the future of AI-driven customer experiences.

Over the next few years, AI is going to redefine how people all over the world interact with businesses every day. Come build that future at Cresta.

About the role:

Cresta’s AI Receptionist answers the phone for small businesses that would otherwise miss the call. It handles millions of conversations a month today, making sure no call goes unanswered and helping owners complete the front-office tasks that keep their business running, and it does so across hundreds of customers. Whether those conversations are actually good is the single most important question in the business, and it deserves a full-time owner. That’s you.

As our first AI Agent Evaluation Engineer, you define what quality means for every agent we run, you build the systems that measure it across every conversation, and you are the person the company trusts when the question is “how good is it, really?”

The work combines hands-on conversation analysis, rigorous evaluation design, and engineering execution: reading and annotating real conversations to learn how the agent actually fails, building the automated evaluation systems (LLM-based judges, golden sets, regression suites) that measure those failures at scale, and keeping those systems honest by calibrating them against human judgment. Fixing what you find is welcome but not the core of the job; an accurate, prioritized picture of agent quality is.

What You'll Do :

Evaluation Design & Quality Definition

Define and maintain the evaluation rubric for the agent across three axes: adherence (did it follow its design, call the right tools, respect guardrails), outcome (did the conversation achieve its goal), and conversation experience (latency, turn-taking, tone, repetition).
Write the annotation guidelines and failure taxonomy the team uses to talk about failures precisely; run calibration sessions and measure inter-rater agreement.
Classify and prioritize failure modes by severity and frequency so engineering and product work on what matters most.

Conversation Analysis & Annotation

Review production conversations by hand every week, leverage QA partners; open-code failures, cluster them, and turn the clusters into the evaluations worth automating.
Trace each failure to its likely cause (prompt, knowledge gap, tool or flow bug, speech recognition) and route it to the right owner with enough evidence to act on.
Evaluate across languages and report quality by segment (language, accent, audio quality, intent), not just in aggregate.

Scalable Evaluation Systems

Build and operate the evaluation pipeline that scores every production conversation, combining automated checks, LLM-based judges, and human review.
Calibrate every automated judge against human labels before trusting it; treat judge error as the primary measurement risk.
Design sampling strategies (stratified by intent, language, caller type, audio conditions) so that reported changes in quality are real.
Build and maintain the golden set and regression suite that every prompt, model, knowledge, and flow change is validated against before release.

Coverage & Edge Cases

Maintain the failure-mode coverage map: which behaviors are tested, partially tested, or unmeasured; close the gaps.
Design evaluations for behaviors no standard harness covers: high-stakes conversation types such as handoffs to a human, misuse and unwanted-caller handling, and resilience under upstream failures.
Define the quality and latency thresholds the agent is held to.

Reporting & Cross-Functional Collaboration

Report quality trends to internal stakeholders and customers clearly, with uncertainty stated and without burying bad news.
Partner with forward-deployed engineers, backend engineers, product managers, and the voice/language engineering team to turn findings into prioritized recommendations.
Document methodology so results are reproducible and the evaluation practice outlives any one person.

What We're Looking For:

3+ years of professional experience in software engineering, applied ML, or data-intensive research roles, including at least 1–2 years working hands-on with LLM-based systems in production.
Bachelor’s or Master’s degree in Computer Science, Computational Linguistics, Cognitive Science, Statistics, or a related field, or equivalent practical experience.
Built and operated an end-to-end evaluation system for a production LLM product (agent or otherwise): rubric, human labels, automated judge, regression suite.
Deep understanding of evaluation methodology: what golden sets, judges, regression suites, and calibration are for, and when each fails. Tool-agnostic; you will work in our in-house tooling.
Fluent in how LLM agents work: prompts, tool calls, context handling, multi-turn state. You can read a trace and tell what the agent was doing and why.
Strong programming skills in Python and experience with LLM APIs; able to build and ship evaluation tooling independently. Fine-tuning and ML frameworks are not required.
Able to write a rubric that independent reviewers would score the same way, and to measure whether they do.
Able to design a test from an open-ended quality question: you decide what to measure and how, rather than executing a predefined plan.
Willing to do non-scalable work weekly, both yourself and by directing our QA partners: listening to calls, labeling conversations, building a failure taxonomy from scratch.
Professional fluency in at least one language other than English, sufficient to evaluate multilingual agent behavior directly.
Strong written communication; you author the guidelines others follow.

Note on Our Hiring Process

We highly value your time and engineering craftsmanship. To ensure a streamlined and objective process, the first step for qualified applicants following an initial resume review is a self-paced CoderPad technical assessment. This allows you to showcase your practical coding and problem-solving skills in a real-world environment before moving into conversational interview rounds.

Perks & Benefits:

We offer a comprehensive and people-first benefits package to support you at work and in life:

Comprehensive medical, dental, and vision coverage with plans to fit you and your family
Flexible PTO to take the time you need, when you need it
Paid parental leave for all new parents welcoming a new child
Retirement savings plan to help you plan for the future
Remote work setup budget to help you create a productive home office
Monthly wellness and communication stipend to keep you connected and balanced
In-office meal program and commuter benefits provided for onsite employees

Compensation at Cresta:

Cresta’s approach to compensation is simple: recognize impact, reward excellence, and invest in our people. We offer competitive, location-based pay that reflects the market and what each individual brings to the table.

The posted base salary range represents what we expect to pay for this role in a given location. Final offers are shaped by factors like experience, skills, education, and geography. In addition to base pay, total compensation includes equity and a comprehensive benefits package for you and your family.

Our use of AI in recruiting: We may use AI tools in our recruiting process, which require human review and oversight. If you have questions about our use of AI or wish to opt out, please contact recruiting@cresta.ai (if you are opting out, please use the subject ‘Opt-Out’ in your email).

Recording & AI transcription: We do not authorize candidates to record or use AI transcription of any interview by phone, notetaker app, AI glasses, or other device. Candidates may request an exception or accommodation for review during the interview process as needed.

Recruiting impersonation scams: We have noticed a rise in recruiting impersonations across the industry, where scammers attempt to access candidates' personal and financial information through fake interviews and offers. All Cresta recruiting email communications will always come from the @cresta.ai domain. Any outreach claiming to be from Cresta via other sources should be ignored.

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Jobs in the United States