Jobs in the United States

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Added 11 mins ago
Software Development Engineer- Product Reliability Engineering
Denver, CO
…automation as a strategic advantage. You’ll write Python, build agentic AI tools, manage data platforms, and contribute to the distributed systems that process billions of real-time…
Added 37 mins ago
TT
Full Stack Engineer
True Talent Solutions Partners
San Francisco, CA
- $230,000 to $300,000 USD / year
- Hands-on experience with AI agents, LLM-powered products, or agentic systems, including relevant tooling such as evaluation or debugging tools.
Added 44 mins ago
SI
Senior Manager, Competitive Intelligence PACE & Agentforce
Salesforce, Inc.
Remote, United States
- $150,100 to $227,000 USD / year
Ready to level-up your career at the company leading workforce transformation in the agentic era? You’re in the right place! Agentforce is the future of AI, and you are the future of…
Added 47 mins ago
Senior System Software Engineer, DGX Cloud AI Infrastructure
NVIDIA USA
CA
We’re looking for a Senior Software Engineer for the NVIDIA Recovery and Resilience team. You’ll own our AI infrastructure services, tools and open-source projects to support resilient and…
Added 47 mins ago
Senior AI Engineer, AI Safety
NVIDIA USA
Remote, United States
Serving as an AI Engineer on our AI Safety Engineering team, you will have a key and adaptable role in scaling methods to secure and align advanced AI systems. Your early work will center…
Added 47 mins ago
Senior Machine Learning Data Pipeline Engineer
NVIDIA USA
CA
We are hiring a Senior Machine Learning Data Pipeline Engineer to invent and build the next generation of data pipelines for end-to-end autonomous driving foundation models. You will…
Added 47 mins ago
Machine Learning Engineer, Data Curation - Autonomous Vehicles
NVIDIA USA
CA · WA
We are looking for a Machine Learning Engineer for our Autonomous Vehicles Data Curation team. The role involves applying state-of-the-art techniques to search, curate, and evaluate…
Added 1 hour ago
TT
Founding Senior Engineer
True Talent Solutions Partners
New York, NY
- $175,000 to $225,000 USD / year
- Develop agentic growth systems that assess operations, identify opportunities, and execute improvements automatically.
Added 1 hour ago
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Founding Account Executive
Flint
San Francisco, CA
- $220,000 to $260,000 USD / year
Flint is the agentic platform that ships pages from your brand and ad campaigns. AI doesn't replace marketers. It removes the work that should never have been theirs: building a one-off…
Added 1 hour ago
Director of Growth Sales, Enterprise
Skai
los angeles, CA
Genuine curiosity for AI-powered products - you don't need to be an engineer, but you should be able to hold a credible conversation about how agentic workflows create value for marketers
Added 1 hour ago
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Core Infrastructure Engineer 2
Oracle
Nashville, TN
- $70,000 to $166,100 USD / year
As a Core Infrastructure Software Engineer, you will:
Added 2 hours ago
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SF Standard Job Posting
Harvey
San Francisco, CA
- $180,000 to $250,000 USD / year
At Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how…
Added 2 hours ago
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NY Standard Job Posting
Harvey
New York, NY
- $180,000 to $250,000 USD / year
At Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how…
Added 2 hours ago
Offensive Security AI Engineer
Micron Technology
Boise
The Offensive Security AI Engineer will plan and implement adversary-informed security testing across Micron's technology environment. The role is intentionally broader than AI security:…
Added 2 hours ago
SRAM Design Lead
Micron Technology
Boise · Albany
Micron is seeking an experienced SRAM Design Engineer to develop high-performance, low-power embedded memory IP and testchip content. This is for advanced semiconductor technologies. The…
Added 2 hours ago
Principal Software Engineer - Agentic AI & Simulation Automation
Irving, TX
This Principal Engineer role is a hands-on technical leadership position responsible for architecture, critical implementation, engineering standards, cross-team alignment, and mentoring.
Added 2 hours ago
Solution Architect (AWS / AI)
CapNexus
NY
CapNexus is an AWS consulting partner specializing in AI and cloud engineering. We build and deliver software through agentic engineering: we build and operate the systems that produce…
Added 2 hours ago
Forward Deployed Solution Engineer – Applied AI FDE
ServiceNow
Remote, United States
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 3 hours ago
Junior Data Engineer
ARAMARK
Philadelphia, PA
We are seeking a Junior Data Engineer who will work hands-on and collaboratively with our enterprise and line of business stakeholders to support the continued evolution of our enterprise…
Added 3 hours ago
Sr. Model Engineer, Imagine
SpaceXSI
Palo Alto, CA
As a multimodal engineer on the Imagine Model Team, you will develop cutting-edge AI experiences beyond text, with a strong focus on enabling high-fidelity understanding and generation…
Added 3 hours ago
Software Design Engineer Intern
DataRobot, Inc.
Boston, MA · Seattle, WA · San Francisco, CA
Apply AI to Developer Tooling: Explore using LLMs and agentic scripts for practical site health tasks, such as flagging stale screenshots or enhancing doc indexing and retrieval for AI…
Added 3 hours ago
PI
Senior Principal AI Research Engineer
Pfizer Inc
WA · CA · MA · CT · NY
- $139,100 to $231,900 USD / year
As a Senior Principal AI Research Engineer, you will build the machine learning systems that transform innovative models into secure, reliable, and scalable capabilities for scientists…
Added 3 hours ago
PI
Senior AI Research Engineer
Pfizer Inc
WA · CA · MA · CT · NY
- $106,000 to $176,600 USD / year
As a Senior AI Research Engineer, you will build the machine learning systems that transform innovative models into secure, reliable, and scalable capabilities for scientists across Pfizer.
Added 3 hours ago
Applied AI Engineer Intern
Parspec
San Mateo, CA
We’re seeking an Applied AI Engineer Intern to join Parspec. This role is part of the AI team and works closely with Product and Engineering on fast-moving, real-world applications of AI.
Added 3 hours ago
AI Engineer 4 (AI Foundations: World Model, RL, Causal Inference, Sequential Data)
Capital One
McLean, VA · Cambridge, MA · San Jose, CA · NY
Experience in building agentic AI systems and agentic workflows

Lumbra

Frontend Engineer, Core Platform

Arlington, VA, United States

$120,000 to $300,000 USD / year

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Job details

Pay: $120,000 to $300,000 USD / year
Posting language: English
Posted: Nov 4, 2026

Original job description

About Lumbra

Lumbra builds the vendor-neutral operating system for agentic AI in high-consequence environments. In our first ten months we won four fully competed prime contracts across the U.S. Government, every one of them deploying into classified spaces. We are live on JWICS. We were selected from a field of 200+ companies for a defense innovation challenge and won it. We beat two established defense primes on the same program and earned the follow-on, now in execution.

About the Role

Nebula, our agentic harness, turns days of manual synthesis into minutes of analysis. Whether analysts trust it depends heavily on the interface: how an agent's work streams in, how its sources and reasoning are shown, and how quickly someone can move through dense, connected data under pressure.

We want a frontend engineer to own that experience. You build the React and TypeScript application analysts use every day, make it fast and legible, and make sure it works the same in commercial cloud and on disconnected, classified networks.

This role is on site in Arlington, Virginia. It is not eligible for remote or hybrid work.

How the Role Is Structured

~70% building. Product features in React and TypeScript, from conversation interfaces to workflow and graph views.
~20% quality and performance. Testing, render performance, accessibility, and the shared components the rest of the team builds on.
~10% users and product. Working with Forward Deployed Engineers and analysts to turn feedback from the field into interface changes.

What You'll Own

Conversation and streaming interfaces for agent output, including tool calls, citations, confidence, and long-running work that has to recover cleanly from timeouts and reconnects.
Workflow and knowledge-graph visualization that keeps dense analytical data legible.
Front-end architecture: state management, data fetching, API contracts with the backend, and patterns that survive constant change.
Shared components and the design system in code, so new features look and behave consistently.
Performance and accessibility, measured rather than assumed. You profile before guessing and treat slowness as a defect.
Front-end testing: component, integration, and end-to-end tests that cover the spec rather than the implementation.
Builds that work disconnected, with no reliance on external CDNs, fonts, or services, so the same app runs inside air-gapped deployments.

You'll Work Alongside

CIA officers, MIT engineers, Special Operations combat veterans, and applied AI engineers from frontier labs including Anthropic and Google. You will make decisions that immediately affect national security. You will own part of a company early and when it matters.

What This Role Is Not

A pixel-pushing role. You shape the experience, not just implement mockups.
A role where performance is someone else's problem.
A backend role. You'll read and shape API contracts, but your depth is the front end.

Required Qualifications

Real depth shipping production front-end software in React and TypeScript. We care about what you have owned and the depth of your experience, not a year count; engineers with 2+ years who have owned meaningful front-end systems are welcome.
Experience building interfaces for real-time or streaming data, such as WebSockets or server-sent events, including the state model behind them.
Real depth in component design, state management, and render performance, with examples of problems you profiled and fixed.
Clean, well-tested code, including component and end-to-end tests.
Enough backend fluency to read and shape API contracts; Python is a plus.
Comfort taking a loose ask and turning it into a working interface without a finished design.
A humble, hands-on approach.
Willingness to work on site in Arlington, Virginia.

Preferred Qualifications

Experience building LLM or agent interfaces, including streaming output, tool-call visualization, and citation surfacing.
Experience with data visualization or graph exploration libraries.
Experience building or maintaining a design system.
Experience with accessibility (WCAG) in complex applications.
Experience building analytical, intelligence, financial, or developer-facing tools.
Experience shipping front ends into restricted or offline environments.
An active U.S. security clearance, or eligibility to obtain one.

Compensation

The base salary range for this role is $120,000 to $300,000, spanning our Engineer II and Senior Engineer levels. Where an offer lands depends on scope, autonomy, and technical capability, which we assess through the interview process rather than by years or title. Our ranges are a real guide, and we are flexible for the right person: if your experience clearly exceeds this role's scope, we will consider you at a higher level, with that level's range. Base salary is one part of total compensation, alongside equity and the benefits below.

What We Offer

Health, dental, and vision insurance. 99% of your premiums covered, and 100% of your dependents' premiums.
Optional HSA plan. Lower premium, HSA eligible, fully portable, self-directed or managed.
Health Reimbursement Account for qualified healthcare expenses.
Life insurance of $150,000 plus AD&D, 100% company paid.
401(k) with a 100% match on the first 6%, immediately vested. No cliff, no waiting period. Yours from day one.
Wellhub Gold. Everything from Gold's Gym to Lifetime, fully covered, plus [solidcore], F45, and hundreds of other studios.
Unlimited PTO. Real time off, not accrual-based. Take what you need, no counting required.
Every federal holiday, plus additional paid days off over the winter break.
Supportive leave of absence program, including time off for military service, medical events, and parental leave.
Breakfast, lunch, and endless snacks every day you are in the office.
Pre-tax commuter benefits.
Company phone plan. A new iPhone, fully company paid.

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