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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 just now
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Early Career Software Engineer
Pacific Northwest National Laboratory
Richland, WA
- $83,100 USD / year
We are seeking a motivated Early Career Software Engineer to join our dynamic team at PNNL and contribute to cutting-edge projects that shape the future of critical technology supporting…
Added 4 mins ago
Stationary Engineer
State of Connecticut
Southbury, CT
…equipment? If so, we invite you to consider the Stationary Engineer position with Connecticut Developmental…
Added 4 mins ago
Mechanical Engineer – HVAC/Building Systems
Farnsworth Group
Phoenix, AZ
Farnsworth Group is seeking a Mechanical Engineer – HVAC/Building Systems. In this role, you will design and coordinate mechanical building systems for healthcare, commercial, industrial,…
Added 10 mins ago
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Senior Software Engineer, Autonomous Systems (C2/Backend/Service)
True Talent Solutions Partners
Palo Alto, CA
- $145,000 to $275,000 USD / year
- Develop services that process data from diverse sensors for real-time state estimation and threat detection.
Added 12 mins ago
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Senior Infrastructure Security Engineer
Jobgether
Remote, United States
- $170,000 to $210,000 USD / year
…Our partner is looking for a Senior Infrastructure Security Engineer based in United…
Added 12 mins ago
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Java Product Engineer / Full Stack Java Developer
Jobgether
Remote, United States
- $90,000 to $110,000 USD / year
…applications and next steps. Our partner is looking for a Java Product Engineer / Full Stack Java Developer based in the United…
Added 12 mins ago
IBM Maximo Senior Business Analyst
Jobgether
Remote, United States
You will also drive process automation, identify opportunities for continuous improvement, and ensure solutions align with regulatory and organizational standards.
Added 12 mins ago
Engineering Manager- Data Collection & Scanning
Jobgether
Remote, United States
Previous professional experience as a software engineer or systems engineer, building and operating production-grade systems.
Added 13 mins ago
Firmware Engineer - GPU
NVIDIA USA
CA
We are searching for an outstanding software engineer to fill an exciting, yet fun role on our GPU Firmware team. You will be joining a team whose primary mission is solving the intricate…
Added 13 mins ago
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Entry Level Civil Design Engineer
Actalent
Brooklyn, NY
- $75,000 to $100,000 USD / year
HIRNG: Entry Level Civil Engineer!Job DescriptionWe are seeking a talented Civil Engineer to perform civil design tasks, focusing on roadway geometrics, grading, and drainage systems. This…
Added 16 mins ago
Associate Engineer
Unilever United States, Inc.
Trumbull, CT
You will be responsible for formulation, process development and validation (bench and pilot scale) cross brand and technologies in Hair North America. You will interact with Marketing,…
Added 20 mins ago
Sr. Sustaining Mechanical Engineer
MURRYSVLLE-RIUS
Murrysville, PA
Sr. Sustaining Mechanical Engineer (Murrysville, PA)
Added 21 mins ago
Principal Engineer
B10 Wells Fargo Bank, N. A.
CHANDLER, AZ · IRVING, TX
Wells Fargo is seeking a Principal Engineer to lead the design, development, and delivery of Generative AI (GenAI) and Agentic AI solutions across enterprise platforms. This role will…
Added 22 mins ago
SETA Systems Engineer
SAIC
Sterling, VA
Are you a highly motivated Systems Engineer looking for a rewarding opportunity to make a significant impact? SAIC has an immediate opening for a mission driven Systems Engineer to support…
Added 23 mins ago
Ground Systems Engineer I, Electrical
Rocket Lab USA
Stennis Space Center, MS
…execution history with the Electron program. GROUND SYSTEMS ENGINEER I, ELECTRICAL Based out of Rocket Lab's Test Facility at Stennis Space Center in Mississippi, the Ground Systems…
Added 23 mins ago
AI
Manufacturing Process Engineer / JR00048000
ABB Inc
Senatobia, MS
- $68,600 to $109,760 USD / year
Added 23 mins ago
Field Coordinator
Entergy
Clinton, MS
…field construction problems in coordination with Construction Engineer and project…
Added 24 mins ago
Process Engineer for New Programs SG 24
PACCAR Inc
Columbus, MS
Added 24 mins ago
Trainmaster 106635
Canadian Pacific
Meridian, MS
Added 24 mins ago
Utility Engineering Analyst 1/2/3 Flex (PCN 086095)
State of Alaska
Anchorage, AK
The new UEA 1/2/3 will receive hands-on internal training, coaching and support throughout the process, as well as opportunities for outside specialized training at both the state and…
Added 24 mins 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 24 mins ago
EG
Quality Assurance Engineer - PHP
Eliassen Group
Jackson, MS
- $40 to $50 USD / hour
Our client seeks a results-driven Senior Quality Assurance Engineer to support Policyholder Portal applications. The role requires manual, automation, mobile, API, and database testing…
Added 24 mins ago
EG
Workday Adaptive Planning Engineer
Eliassen Group
Jackson, MS
- $65 to $75 USD / hour
Our client is seeking a Workday Adaptive Planning Engineer to design, build, and maintain financial planning and forecasting solutions. The role partners with FP&A, Accounting, and Finance…
Added 30 mins ago
Lead Software Engineer
B10 Wells Fargo Bank, N. A.
COLUMBUS, OH
Wells Fargo is seeking a Lead Software Engineer within the Consumer Technology (CT) organization- providing technology solutions to the LOBs and manage the application portfolios through…

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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