Jobs in the United States

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Added 2 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 2 mins ago
Site Reliability Engineer
Booz Allen Hamilton_United States
Reston, VA
As a Site Reliability Engineer (SRE) on our team, you'll help support and sustain a production Kubernetes-based platform operating within the Intelligence Community. You'll perform platform…
Added 2 mins ago
Cloud Infrastructure & Core Services DevOps Engineer
Booz Allen Hamilton_United States
North Charleston, SC · Washington, DC
Everyone is trying to “harness the cloud,” but not everyone knows how. As a DevOps engineer, you’re eager to build, manage, and secure a container platform that meets your client’s needs…
Added 2 mins ago
DevOps Engineer
Booz Allen Hamilton_United States
Beavercreek, OH
As a DevOps engineer, you know how to set up cloud environments and provision computer networking, storage, and virtual networks - ultimately, how to “harness the cloud.” We’re looking for…
Added 2 mins ago
A
Principal Research Scientist I
AbbVie
North Chicago, IL
- $124,500 to $236,500 USD / year
…analytical scientists to frame high-value scientific questions, engineer and integrate complex analytical data, and develop fit-for-purpose models, visualizations, and digital solutions…
Added 3 mins ago
Senior Software Engineer (REST API & Springboot )
U.S. Bank National Association
Irving, TX · Atlanta, GA · Hopkins, MN · Minneapolis, MN · San Francisco, CA
Responsible for designing, developing, testing, operating and maintaining products.
Added 3 mins ago
CS
Cloud Engineer II (Full Time) - United States
Cisco Systems, Inc.
Milpitas, CA
- Full-time
Our Security Policy and Access team is at the heart of Cisco’s mission, building and operating market-leading platforms like the Cisco Identity Services Engine and Meraki Access Manager to…
Added 4 mins ago
Senior Software Engineer - AI Platforms
US: Mastercard International Incor
Atlanta, GA
Mastercard is seeking a Senior Software Engineer to design and build production-grade AI platform capabilities that enable AI-powered products and agentic experiences across B&MI.
Added 4 mins ago
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Infrastructure Engineer
TEKsystems
Reston, VA
- $70 to $127 USD / hour
…guide strategy and architecture for secure mission services operating under constrained connectivity. This role focuses on operating at the intersection of tactical communications, systems…
Added 5 mins ago
MA
Infrastructure Engineer
Midtown Athletic Clubs
Chicago, IL
- $105,000 to $125,000 USD / year
…Midtown has grown from one tennis club in Chicago to owning and operating eight luxury athletic clubs across the United States and…
Added 6 mins ago
DC Manufacturing Team Lead
ABEC Inc
Wilson, NC
…value is based on combining long experience with the ability to engineer, design, manufacture, commission, qualify, and service the entire bioprocess to reduce overall cost, shorten time to…
Added 7 mins ago
Full Stack Software Engineer II (Angular, Java)
Global Payment Holding Company
CINCINNATI, OH · ATLANTA, GA · DENVER, CO
Make your mark at one of the biggest names in payments. We’re looking for a Full Software Engineer II (Angular, Java) to join our ever-evolving software engineering team and help shape the…
Added 7 mins ago
Lead Data Governance Engineer
Global Payment Holding Company
CINCINNATI, OH · ATLANTA, GA
Make your mark at one of the biggest names in payments. We’re looking for a Lead Data Governance Engineer to join our ever-evolving Data Products team and help shape the future of global…
Added 8 mins ago
License Renewal Engineer 3 - Nuclear
Sargent & Lundy
Wilmington, DE
We are seeking an experienced License Renewal (LR) and Subsequent License Renewal (SLR) engineer in the nuclear industry. We support various nuclear power plants’ license extensions and…
Added 10 mins ago
Sr. Software Development Engineer
LPL Financial Corp
Austin, TX
Creates operating mechanisms to ensure all voices are heard within the project team; commits to team decisions once made
Added 10 mins ago
Distinguished Engineer, Trading
LPL Financial Corp
United States
Experience establishing or scaling an AI Center of Excellence or federated enterprise AI operating model.
Added 10 mins ago
AVP, DevOps Engineer
LPL Financial Corp
Austin, TX
We are seeking an experienced AVP of DevOps Engineering to lead a team responsible for building and operating an AI-driven observability and reliability platform for enterprise-scale…
Added 11 mins ago
Lead QA Engineer
Ambry Genetics Corporation
United States
…results to our patients as quickly as possible. As a Lead QA Engineer, you will own the quality engineering strategy for a portfolio of in-house developed clinical software, including a…
Added 11 mins ago
CAD/CAM Engineer
BG MC US Holdings LLC Force Motion Group
Brecksville, OH
HYSON is seeking an experienced CAD/CAM Engineer to program CNC machines and prepare production-ready designs and documentation across Hyson’s product lines. In this role, you will turn…
Added 13 mins ago
Sr. Full Stack Engineer, Launch Software
SpaceX
Hawthorne, CA
Experience with UNIX-like operating systems and tools like Terraform, Ansible, Puppet for managing them
Added 15 mins ago
MS
Principal Software Engineer - Digital Media - Dallas, TX
Military Spouse Jobs & VetJobs
United States
- $120,000 to $180,000 USD / year
Lead the "0-to-1" Phase: Architect and develop software solutions for digital screens and ESL integrations, operating initially as a single contributor.
Added 17 mins ago
Senior Tech Delivery Lead Open Text
Sysco Payroll, Division of Sysco Resources Services, LLC
United States
May sometimes provide hands-on assistance with exceptionally complex technical solutions, operating as a senior engineer
Added 18 mins ago
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QC Lab Technician
TEKNOVA
Hollister, CA
- $25 USD / hour
…novel products that help our customers get reliable results, engineer formats that fit their systems, and find ways to ship out their orders one day sooner. Every time we help our customers…
Added 18 mins ago
Signal Integrity Engineer III
Hewlett Packard Enterprise
Roseville, CA
Signal Integrity Engineer III – R&D Networking Platforms
Added 18 mins ago
Shaft Technician
Cementation USA
Elko, NV
Provides effective and accurate survey control to the shaft by operating plumb bobs, hanging steel tapes, survey instruments and auxiliary equipment.

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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