Jobs in the United States

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Added 3 mins ago
Lead Engineering Associate II
Aerospace
Minneapolis, MN
As a Lead Engineer Associate II here at Honeywell Aerospace, you will take a lead role in engineering projects, providing technical expertise and guidance to ensure successful project…
Added 5 mins ago
Power Engineer II
Hewlett Packard Enterprise
Sunnyvale, CA
HPE has an immediate need at its Sunnyvale, CA location for a Power Engineer. This position reports to the Manager of Power Systems Development, a subgroup of HPE’s Engineering Services…
Added 6 mins ago
AD
Software Engineer II (Hybrid - 2x/week)
Avery Dennison
Little Rock, AR
- $75,000 to $111,000 USD / year
As a Software Engineer II on the storeLink engineering team, you will design, develop, and support key features for our cloud-native retail management platform. storeLink empowers grocery…
Added 7 mins ago
Infrastructure Software Engineer II (Remote - US)
BNSF Railway
United States
Added 14 mins ago
Gas Engineer II Control Systems and SCADA
CenterPoint Energy
Houston, TX
The Gas Engineer II Control Systems and Scada will support the Company’s Gas Control and SCADA process control systems. Provide engineering design and recommendations for Gas Control…
Added 16 mins ago
AI/ML Automation Engineer/Developer (Jr, Mid and Sr.)
Parsons Technical Services, Inc.
MD
…mission-critical cybersecurity work. If you enjoy performing cutting-edge software development to develop cybersecurity capabilities using the latest and greatest technologies (including…
Added 17 mins ago
MK1-Avionics Harness Design Engineer II
Blue Origin Personnel, LLC
Space Coast, FL
Create 3D routed harness data files utilizing Creo (Pro/Engineer) Cabling
Added 17 mins ago
Launch Operations Engineer (All levels)
Blue Origin Personnel, LLC
Space Coast, FL
Experience Levels with manufacturing, industrial, or process engineering. (3+ Level II Engineer, 5+ Level III Engineer, 8+ SR Level Engineer)
Added 17 mins ago
Vehicle operation engineer II –New Glenn 9X4 Mechanical Sub System
Blue Origin Personnel, LLC
Space Coast, FL
…subsystem, including CONOPS, functional architecture, components, software, and integrated interactions. You will follow the development component hardware, autonomous software, and…
Added 17 mins ago
Tooling Design Engineer II
Blue Origin Personnel, LLC
United States
Proven experience with CAD based design software for modeling and drafting.
Added 17 mins ago
Mechanical Engineer II (Valve Design) - New Glenn
Blue Origin Personnel, LLC
United States
Proficiency in 3D CAD software (Creo preferred) and Finite Element Analysis (FEA) tools (ANSYS preferred).
Added 18 mins ago
RA
Sr. Staff Functional Safety Engineers
Rivian and Volkswagen Group Technologies
Palo Alto, CA
- $237,000 to $356,000 USD / year
…vehicles through technology that will set the standards for software-defined vehicles around the…
Added 19 mins ago
Senior COMSEC & Network Engineer (Cloud/Classified)
GD Information Technology, Inc.
United States
We are seeking a highly skilled COMSEC and Network Engineer to lead the integration and management of secure communications within a classified Azure Cloud environment. This role is…
Added 25 mins ago
Engineer II-Absolute Aviation
HEICO
Cheney, WA
Reverse engineer, troubleshoot, and lead the repair of complex aircraft components, both electrical and mechanical, using manual and automatic measuring equipment.
Added 28 mins ago
Design Engineer
Fuyao Glass America Inc
Plymouth, MI
II. Job Summary：The Design Engineer is directly responsible to ensure product CAD design, drawing and math data integrity for current and new business opportunities. Feasibility/design…
Added 30 mins ago
Design Engineer
Actalent
Albany, NY
Design. Innovate. Launch.Are you a hands-on engineer who enjoys turning ideas into real-world products? Join our growing team and help develop innovative polypropylene venting systems and…
Added 40 mins ago
Sr. Mechanical Engineer, Satellites (Starlink)
SpaceX
Redmond, WA
…user antennas that connect within minutes of unboxing, and the software that brings it all together. The Starlink constellation will continue to grow with increasingly powerful hardware,…
Added 45 mins ago
Software Engineer II - Reporting Platform
Qualtrics
Seattle, WA
As a Software Development Engineer on the Reporting Platform team, you would apply your distributed-systems knowledge, familiarity with full-stack development, databases, various…
Added 58 mins ago
Engineer- Controls II USA (Crew C)
First Solar (US)
New Iberia, LA
Proven experience using Auto Desk AutoCad drafting software to create electrical schematic and panel layouts.
Added 1 hour ago
Engineer II - Grid Planning
Alliant Energy
Cedar Rapids, IA
Help shape the future of energy, before it’s built. As an Engineer II on the Grid Planning team, you’ll play a key role in defining where and how new generation resources like wind, solar,…
Added 1 hour ago
Senior Infrastructure Security Engineer
Federato
Remote, United States
Improve Secure Software Development Lifecycle, make improvements to our Software Development Lifecycle to improve security: vulnerability scanning, remediation process; ensuring that…
Added 1 hour ago
L
Frontend Engineer, Core Platform
Lumbra
Arlington, VA
- $120,000 to $300,000 USD / year
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,…
Added 1 hour ago
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Applied AI Engineer
Lumbra
New York City, NY
- $150,000 to $300,000 USD / year
The base salary range for this role is $150,000 to $300,000, spanning our Engineer II and Senior Engineer levels. Where an offer lands depends on scope, autonomy, and technical capability,…
Added 1 hour ago
Software Engineer – Emulation and Automated Test
Intuitive
Sunnyvale, CA
The Multiport Software Group within Intuitive has an immediate opening for a Software Engineer to support automated test and the internal da Vinci emulator. You will be on the team…
Added 1 hour ago
RF/Microwave Engineer, Satellites (Starlink)
SpaceX
Redmond, WA
…allow users to connect within minutes of unboxing, and the software that brings it all together. We’ve only begun to scratch the surface of Starlink’s potential global impact and are…

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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