Remote jobs in the United States

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Added 8 mins ago
Principal Software Engineer
Highmark Health
Remote, United States
We are seeking a visionary Principal Software Engineer responsible for building scalable public-facing software applications across Digital Member Experience channels. As a key player…
Added 16 mins ago
Power Platform Engineer
NewGen Technologies
Remote, United States
Power BI, Azure integration (Azure OpenAI, Azure AI Foundry, Logic Apps), or Python and SQL for the cases where low-code isn't enough
Added 25 mins ago
DevSecOps Engineer Principal
SAIC
Remote, United States
SAIC is seeking an experienced and dedicated DevSecOps Engineer Principal to support the design, deployment, operation, and maintenance of secure, scalable Cloud products and services…
Added 26 mins ago
SC
IoT Engineer - Special Projects & Innovation
SmartTech Contracting LLC
Remote, United States
- $99,750 to $120,225 USD / year
Position Title: IoT Engineer - Special Projects & Innovation
Added 36 mins ago
Software Engineer II - Offboard Python Application
Latitude AI
Remote, United States
…framework. In terms of implementation, this involves a lot of Python coding, interacting with open source packages and various AWS/GCP services. In terms of analysis, we’re constantly…
Added 39 mins ago
I
Data Engineer
InductiveHealth
Remote, United States
- $130,000 to $145,000 USD / year
Build and optimize ETL/ELT pipelines using NiFi, Kafka, Python, and SQL.
Added 43 mins ago
Network Engineer - Cloud Operations **US Remote**
x Varian Medical Systems, Inc.
Remote, United States
Varian is seeking a Network Engineer position in support of our Managed Services global business. Our goal is to provide good operational practices and support for the operations,…
Added 48 mins ago
CI
Full Stack Engineer
CareQuest Institute for Oral Health Inc
Remote, United States
- $109,140 to $128,400 USD / year
The Full Stack Engineer designs, builds, deploys, and supports production-grade web applications that advance CareQuest Institute’s mission and organizational priorities. The role owns…
Added 49 mins ago
Co-Simulation Engineer III
DLB Associates
Remote, United States
The Co-Simulation Engineer III will have the opportunity to work with and collaborate with senior design staff to develop multi-domain co-simulation and digital twin capabilities for data…
Added 57 mins ago
CA
Senior Data Engineer
Care Access
Remote, United States
- $120,000 to $160,000 USD / year
The Senior Data Engineer is responsible for designing, developing, implementing, and maintaining scalable data pipelines and enterprise data solutions that support the organization's…
Added 1 hour ago
AS
Principal Software Engineering - Reliability and FinOps Engineer
AT&T Services, Inc.
Remote, United States
- $155,400 to $261,100 USD / year
As a Principal System Engineer, you will serve as a senior technical leader across FinOps, cloud optimization, system reliability, and AI-driven automation. You will shape and execute…
Added 1 hour ago
Lead Python Engineer
Bright Vision Technologies
Remote, United States
We are seeking an experienced Lead Python Engineer to design, build, and continuously enhance complex enterprise-grade applications, data-intensive services, and automation platforms. This…
Added 1 hour ago
BV
Oracle Cloud Infrastructure Engineer
Bright Vision Technologies
Remote, United States
- $110,000 to $140,000 USD / year
Oracle Cloud Infrastructure Engineer – Remote
Added 1 hour ago
Infrastructure Automation Engineer
Bright Vision Technologies
Remote, United States
As we continue to grow, we’re looking for a skilled Infrastructure Automation Engineer to join our dynamic team and contribute to our mission of transforming business processes through…
Added 1 hour ago
BV
Oracle Security Engineer
Bright Vision Technologies
Remote, United States
- $100,000 to $130,000 USD / year
We are seeking an experienced Oracle Security Engineer responsible for designing, implementing, and operating security controls across Oracle Cloud Infrastructure (OCI), Oracle Cloud…
Added 1 hour ago
GTM Engineer
Nash
Remote, United States
…internal platform, tying them together. We are hiring a GTM Engineer to run that motion and build the agents and data layer it depends…
Added 1 hour ago
Senior Software Engineer - External Products
Silverchair
Remote, United States
We're looking for a Senior Software Engineer to help build the next generation of tools for researchers and publishers. You'll work on external-facing products that serve scholarly content…
Added 1 hour ago
TV
Staff Software Engineer, Platform Team
The Voleon Group
Remote, United States
- $325,000 to $410,000 USD / year
As a Senior Software Engineer on the Software Platform team, you will design and evolve the distributed systems that power research and trading workflows across on-premises and cloud…
Added 1 hour ago
I
Senior Collections Data Engineer (US-Remote)
iCOUNTER
Remote, United States
- $140,000 to $180,000 USD / year
We are looking for a Senior Software Engineer / Data Engineer to join our Threat Intelligence Collections team. You will design, build, and operate large-scale data collection systems that…
Added 1 hour ago
BV
Cloud Networking Engineer
Bright Vision Technologies
Remote, United States
- $100,000 to $150,000 USD / year
We are looking for a Cloud Networking Engineer to design, deploy, and operate service mesh platforms - primarily Istio and Linkerd - that provide secure, observable, and reliable…
Added 1 hour ago
Container Platform Engineer
Bright Vision Technologies
Remote, United States
As we continue to grow, we’re looking for a skilled Container Platform Engineer to join our dynamic team and contribute to our mission of transforming business processes through technology.
Added 1 hour ago
BV
Telemetry Engineer
Bright Vision Technologies
Remote, United States
- $100,000 to $150,000 USD / year
We are seeking a Telemetry Engineer to design, implement, and manage enterprise observability platforms that provide actionable insights through metrics, logs, traces, and alerting. The…
Added 1 hour ago
BV
Service Infrastructure Engineer
Bright Vision Technologies
Remote, United States
- $100,000 to $150,000 USD / year
We are looking for a Service Mesh Engineer to design, deploy, and operate service mesh platforms - primarily Istio and Linkerd - that provide secure, observable, and reliable…
Added 1 hour ago
BV
AI Platform Engineer
Bright Vision Technologies
Remote, United States
- $100,000 to $180,000 USD / year
We are seeking an AI Platform Engineer to design, build, and operate scalable AI inference platforms for production ML workloads. The ideal candidate will have expertise in distributed…
Added 1 hour ago
BV
DevOps & SRE Engineer
Bright Vision Technologies
Remote, United States
- $100,000 to $150,000 USD / year
We are seeking an experienced DevOps & SRE Engineer to ensure the availability, performance, and operational excellence of large-scale distributed systems in production. As an SRE you will…

Circle

Lead Engineer, AI Platform

Remote, United States

$170,000 USD / year

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Job details

Pay: $170,000 USD / year
Experience: 7+ years of experience building and shipping production software, ideally including LLM-powered agents that take real actions in a product.
Posting language: English
Posted: Oct 30, 2026

Original job description

ABOUT US

Circle is building the world’s leading AI-powered, all-in-one platform for digital businesses. We make it possible for creators, coaches, educators, and businesses to bring together their audience with engaging discussions, live streams, events, chat, courses, and payments - all in one place, all under their own brand.

We’re proud to be a fully remote company of around 270 (and growing!) team members from 30+ countries around the world. We seek exceptional individuals around the world, set them up to do the best work of their lives, and in turn, create a meaningful impact in their own lives. We don't track hours, but we do manage for high expectations very closely. We collaborate across time zones, are highly async, and like to document a lot.

Every year, we bring the whole company together in beautiful places around the world for our company offsites. So far, we’ve hosted offsites in Turkey, Portugal, Mexico, Thailand, Colombia, Italy, Ireland, and more, with still more to come!

Check out our Careers https://careers.circle.so/ page for more about working at Circle.

ABOUT THE ROLE

The AI Quality engineering team at Circle owns the foundation for measuring, diagnosing, and improving the quality of Circle's AI-powered features. This team focuses on building the infrastructure to measure, diagnose, and improve production AI systems, rather than ML research or model training.

We're looking for a Lead Engineer to help us build out the evaluation frameworks, observability tooling, and diagnostic infrastructure that tell us whether our AI Agents are working well, where to improve them, and how to make them faster and more cost-efficient.

This is a hands-on player-coach role. You’ll also lead and manage the AI Quality engineering team, with an ambitious and growing roadmap.

If you're excited about making AI systems work reliably, efficiently, and at scale, this is for you.

WHAT YOU'LL BE DOING

Build and own our evaluation infrastructure. Design the CI/CD pipelines, scorers, and datasets that tell us whether Circle's AI agents (planners, tool-callers, and sub-agents) are actually working, from a single tool call to a full multi-turn conversation.
Diagnose exactly where quality breaks down. Trace failures across the agent pipeline including plan creation vs. execution, tool selection, tool trajectory in complex areas like workflows, site builder, and analytics. Turn what you find into prototypes that solve the issue or identify priorities for AI core engineering can help.
Grow the datasets that make evaluation possible. Stand up annotation workflows and build out AI-generated and simulated conversations so we can cover more of the product faster than manual labeling alone.
Run structured experiments across prompts, models, and the agent harness. Evaluate new and open-source models against our production baseline, build the framework we use to decide when to shift models, and chase cost and latency wins through model swaps, caching, and routing by plan complexity.
Lead and grow the AI Quality engineering team. Set technical direction and manage day-to-day priorities, all while staying hands-on in the code yourself.
Partner closely with AI Core engineering. Work with the engineers building Circle's AI products so they have real confidence that their changes are actually improving quality, not just shipping.

WHAT YOU'LL NEED TO BE SUCCESSFUL

7+ years of experience building and shipping production software, ideally including LLM-powered agents that take real actions in a product. You've worked on complex, tool-using systems (multiple tools, planning or orchestration, sub-agents) not just simple, single-turn assistants, and you can walk us through something you shipped and how you knew it was actually working.
Comfortable in Ruby on Rails / Python or ready to pick them up quickly. Ruby on Rails is our production system and the foundation that Circle’s AI Agents are built on and proficiency in Python is a strong plus, especially for the data and evaluation side of the work.
Experience building evaluation or observability infrastructure for ML/AI systems. You've built eval pipelines, scorers, dashboards, or CI/CD for evals before and have experience with evaluation frameworks like Braintrust, LangSmith, or similar.
Experience designing datasets, annotation workflows, or labeling pipelines for ML/AI evaluation. You know how to turn raw examples into a dataset you can trust through human annotation, AI-generated data, or simulation.
Learn fast, experiment aggressively, and thrive in a highly dynamic environment. You’ll need to be comfortable running a lot of experiments and letting the results settle the argument, including the ones that don't work (which will be many of them in the beginning).
Comfortable in a fast-paced environment with ambiguity. You’ll need to learn and pick up new technologies when projects require it.
Strong alignment with our company values https://circle.so/careers.
You are proficient in English (spoken, written, and reading) at a CEFR Level C2 https://magoosh.com/english-speaking/english-proficiency-levels-a-guide-to-determining-your-level/ / ILR Level 5 https://www.govtilr.org/.

COMPENSATION & BENEFITS

Circle offers U.S.-benchmarked compensation globally, equity in the company with ongoing refresh grants, and 35 days of paid time off each year.

We’re a remote-only team that comes together twice a year for company retreats in incredible destinations around the world. Alongside incredible flexibility and autonomy, we offer a benefits package that supports health, wellbeing, and professional growth. Learn more in our Candidate Hub. https://circleco.notion.site/circle-candidate-hub

LEARN MORE

Candidate Safety & Interview Process Notice https://app.notion.com/p/circleco/Circle-Candidate-Hub-374b655313b7803d9580fb7da4f51acf?source=copy_link#374b655313b780e5b681c4d56b962790
Diversity, Equity & Inclusion https://app.notion.com/p/circleco/Circle-Candidate-Hub-374b655313b7803d9580fb7da4f51acf?source=copy_link#374b655313b7807a8e3ff5c25a1d93ba
How We Use Candidate Data https://app.notion.com/p/circleco/Circle-Candidate-Hub-374b655313b7803d9580fb7da4f51acf?source=copy_link#374b655313b780e49e98f390eec6bb51
Equal Employment Opportunity https://app.notion.com/p/circleco/Circle-Candidate-Hub-374b655313b7803d9580fb7da4f51acf?source=copy_link#374b655313b7807a967dea67e68f31f0
Visit our Candidate Hub https://circleco.notion.site/circle-candidate-hub to learn more about working at Circle, our benefits, and our hiring process.

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Skills

ML
Research
CI/CD
Industrial software
Ruby on Rails
Python

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