Jobs in the United States

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Project Manager - Structural | Civil
Alaska Contract Staffing
Anchorage, AK
Oversees the structural quality assurance/quality control (QA/QC) program for in-house designs.
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Design Engineering Lead
Actalent
Raymond, OH
- $50 to $60 USD / hour
As a Mechanical Design Engineer, you will direct and approve engineering output by reviewing design specifications, calculations, drawings, and documentation to ensure accuracy, quality,…
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Design Engineering Lead
Actalent
Raymond, OH
- $50 to $60 USD / hour
The role is based in an office-based R&D design environment focused on mechanical and chassis system development. The engineer works primarily with 3D design and CAE tools, as well as…
Added 1 min ago
Associate, Finance Engineer (Data & Analytics)
SoFi University
Cottonwood Heights, UT
SoFi’s Finance Leadership Program (FLP) is an exciting opportunity for recent graduates and early-career professionals who are passionate about data, analytics, and using technology to…
Added 1 min ago
CATIA Data Management
Actalent
Marysville, OH
Job Title: CATIA Data Management Engineer (Mid Level)
Added 2 mins ago
Quality Engineer Intern (Summer 2027)
Sierra Nevada Company, LLC
Dayton, OH
Come start your career with some of the brightest and most innovative minds in the country! As a Technical Intern, you will participate in a comprehensive summer internship program designed…
Added 3 mins ago
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Mobile Building Engineer
CBRE
Cleveland, OH
- $27.16 to $40.64 USD / hour
…and experience. The minimum salary for the Mobile Building Engineer position is $27.16 per hour and the maximum salary for the Mobile Building Engineer position is $40.64 per hour. The…
Added 3 mins ago
Transmission Line Project Engineer (Central) - Remote
WSP USA
Columbus, OH
WSP is seeking a Transmission Line Project Engineer to join our Power Delivery Team. This position offers a flexible work arrangements, with the option to work remotely or from one of our…
Added 3 mins ago
PN
Electrical Engineer 3
Pacific Northwest National Laboratory
Columbus, OH
- $122,100 USD / year
The Operational Systems Engineering group within the Earth Systems Science Division seeks a mid-career Electrical Engineer to support research, development, and deployment activities…
Added 4 mins ago
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Physical Design Engineer II
Microsoft
WA · OR · CA · TX · NC · DC · Redmond, WA · Hillsboro, OR · Mountain View, CA · Austin, TX · Raleigh, NC · Washington, DC · Redmond · Hillsboro · Mountain View · Austin · Raleigh · Washington
- $102,100 to $219,200 USD / year
…insight and industry knowledge to envision and implement future technical solutions that will manage and optimize the Cloud infrastructure. We are looking for a Physical Design Engineer II…
Added 40 mins ago
Transmission Line Project Engineer (Rocky Mountain)- Remote
WSP USA
Bozeman, MT · Billings, MT
WSP is seeking a Transmission Line Project Engineer to join our Power Delivery Team. This position offers a flexible work arrangements, with the option to work remotely or from one of our…
Added 44 mins ago
VI
System Test Lead
Viasat, Inc.
Carlsbad, CA · Reston, VA · Germantown, MD
- $190,500 to $285,500 USD / year
We have an exciting new opportunity for a System Test Engineer to join our Government team! You will work with a cross functional team in the development of our latest generation government…
Added 45 mins ago
PN
Senior Software Engineer III
Pacific Northwest National Laboratory
Richland, WA · Seattle, WA
- $133,100 USD / year
We are seeking a Senior Software Engineer to join PNNL's advanced SI engineering team and help build next-generation systems across agentic SI platforms, large-scale data orchestration, and…
Added 45 mins ago
PN
Lead Software Engineer IV
Pacific Northwest National Laboratory
Richland, WA · Seattle, WA
- $161,300 USD / year
We are seeking an exceptional Lead Software Engineer to architect and build next-generation SI systems at PNNL, spanning agentic SI platforms, petabyte-scale data orchestration, and…
Added 45 mins ago
PN
Early Career Software Engineer
Pacific Northwest National Laboratory
Richland, WA
- $83,100 USD / year
…Environmental Molecular Sciences Laboratory, a Department of Energy, Office of Science user facility housed on the PNNL…
Added 45 mins ago
PN
Software Engineer II
Pacific Northwest National Laboratory
Richland, WA · Seattle, WA
- $109,000 USD / year
…Environmental Molecular Sciences Laboratory, a Department of Energy, Office of Science user facility housed on the PNNL…
Added 1 hour ago
Sr. Sustaining Mechanical Engineer
MURRYSVLLE-RIUS
Murrysville, PA
Sr. Sustaining Mechanical Engineer (Murrysville, PA)
Added 1 hour ago
Utility Engineering Analyst 1/2/3 Flex (PCN 086095)
State of Alaska
Anchorage, AK
…also calculates amounts for the power cost equalization (PCE) program and serves as an information resource for the executive and legislative branches of…
Added 1 hour ago
Mechanical Engineer - Boston, MA
Serco
Gulfport, MS · Pascagoula, MS
As the Mechanical Engineer for our LCU 1700 program, you will work onsite at our office in either Boston, MA or Pascagoula, MS, where will you will be part of a 12-person Engineering team…
Added 1 hour ago
TC
Distribution Engineer I
TRC Companies, Inc.
Asheville, NC
- $24.5 to $30 USD / hour
TRC is hiring a Distribution Engineer I. This position will be working within our Power Distribution engineer team and is a part of our growing Power Sector.
Added 1 hour ago
Manufacturing Engineer Intern (Summer 2027)
Sierra Nevada Company, LLC
Sparks, NV
Come start your career with some of the brightest and most innovative minds in the country! As a Technical Intern, you will participate in a comprehensive summer internship program designed…
Added 1 hour ago
Transmission Line Project Engineer (Pacific) - Remote
WSP USA
Las Vegas, NV · Reno, NV
WSP is seeking a Transmission Line Project Engineer to join our Power Delivery Team. This position offers a flexible work arrangements, with the option to work remotely or from one of our…
Added 1 hour ago
Water / Wastewater Engineer (entry - level) - Virginia Beach, VA
Brown and Caldwell
Virginia Beach, VA
Brown and Caldwell is seeking a self-motivated, entry-level environmental engineer to join our team in Virginia Beach, VA. In this new role, you will work with and be mentored by strong,…
Added 1 hour ago
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Cybersecurity AI Forward Deployed Engineer - FDE - Manager
Accenture
Nashville, TN
- $94,400 to $316,300 USD / year
Do you have the deep functional and technical experience to help implement security solutions that align with our clients’ business objectives? Do you have the expertise to design and…
Added 1 hour ago
FN
Deputy Public Works Director
Fairbanks North Star, Borough of (AK)
Fairbanks, AK
- $115,584 to $124,622 USD / year
The incumbent performs a full range of technical and administrative duties of a complex nature. Work is performed under the general direction of the Public Works Director and is evaluated…

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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