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Added 2 mins ago
Senior Full-Stack Software Engineer (Java, Angular)
Global Payment Holding Company
CINCINNATI, OH · ATLANTA, GA
Make your mark at one of the biggest names in payments. We’re looking for a Senior Full-Stack Software Engineer (Java, Angular) to join our ever-evolving software engineering team and help…
Added 5 mins ago
Sr DevOps Engineer
ACI Worldwide
Norcross, GA
As a Sr DevOps Engineer in Norcross, GA, you will join a diverse, passionate team, dedicated to powering the world’s payments ecosystem!
Added 5 mins ago
DevOps Engineer
ACI Worldwide
Norcross, GA
Plans, designs, develops and tests Development Operations automation streams, including continuous integration and delivery. Actively contributes to daily development and delivery business…
Added 8 mins ago
Sr. Full Stack Engineer, Launch Software
SpaceX
Hawthorne, CA
The application software team is the central nervous system of SpaceX – we create mission critical applications that are used throughout SpaceX to accelerate launch vehicle production and…
Added 8 mins ago
Power Electronics Engineer - High Voltage (Starlink)
SpaceX
Redmond, WA
…deploy Starlink, the world’s most advanced broadband internet system. Starlink is the world’s largest satellite constellation and provides fast, reliable internet to 10M+ users worldwide.…
Added 8 mins ago
Sr. Software Technical Support Manager (Remote)
A.C. Coy
Merrifield, VA
Maintaining Optimal System performance and proactively mitigating risks early.
Added 9 mins ago
TP
Automation Engineer
Tetra Pak
Brooklyn Park, MN
- $72,500 to $103,400 USD / year
We are looking for an Automation Engineer who will work independently in project and/or pre-project teams. You will design, implement, and validate complex automation solutions and provide…
Added 10 mins ago
MS
Principal Software Engineer - Digital Media - Dallas, TX
Military Spouse Jobs & VetJobs
United States
- $120,000 to $180,000 USD / year
…clarify business needs, contribute to development of long-range system plans, ensure software-related products and services meet the needs of the business, and drive technical standards to…
Added 13 mins ago
Power Engineer II
Hewlett Packard Enterprise
Sunnyvale, CA
· Front End Power System development process involves elements of System Level Conceptualization, and getting involved in the full cycle of engineering development with HPE Supplier(s),…
Added 13 mins ago
HPE Labs - Principal Research Engineer - HPE Quantum
Hewlett Packard Enterprise
Milpitas, CA
The HPE Quantum team at HPE Labs is developing new approaches for quantum computing, including integration with high-performance computing (HPC). As a Principal Software Engineer, you will…
Added 14 mins ago
Technical Services Engineer
National Electrical Engineering Consultants LLC
Pembroke Pines, FL
…Energy Storage Systems (BESS), Solar, and Renewable Energy Integration. NEEC’s commissioning team ensures that every system operates safely, efficiently, and in compliance with the highest…
Added 14 mins ago
Senior Specialist, Mechanical Engineer (Mechanisms)
L3Harris Technologies
Carlsbad, CA · Chantilly, VA · Palm Bay, FL
Job Title: Sr. Specialist, Mechanical Engineer (Mechanisms)
Added 16 mins ago
System Administrator I – 1 Year Position
Deseret Mutual Benefit Administrators
Salt Lake City, UT
…applications software ensuring scalability and appropriate integration with other systems. You will detect, diagnose, and report problems on server systems and proactively plan maintenance…
Added 18 mins ago
Missile Integration Technical Lead - 20695
CORP-Corporate Office
United States
Northrop Grumman Defense Systems is seeking a Missile Integration Technical Lead - Senior Staff Systems Test Engineer to join the Sentinel program in enhancing the US Space Force’s ICBM…
Added 18 mins ago
Principal / Sr Principal Modeling Simulation Systems Engineer - 18976
CORP-Corporate Office
United States
Northrop Grumman Defense Systems is seeking a Principal / Sr Principal Modeling Simulation Engineer Systems. This opening is in Roy, UT and will support the Sentinel Program. Northrop…
Added 18 mins ago
Sentinel - Principal / Sr Principal Systems Engineer - 18977
CORP-Corporate Office
United States
Northrop Grumman Defense Systems is seeking a Principal / Sr Principal Systems Engineer. This opening is in Roy, UT and will support the Sentinel Program. Northrop Grumman supports the Air…
Added 18 mins ago
Senior Principal Systems Engineer *
CORP-Corporate Office
United States
Northrop Grumman’s Space Systems Sector is seeking a Systems Engineer – Level 4 to join our team in our Fairfax, VA or Morrisville, NC locations.
Added 18 mins ago
Staff Engineer Embedded Software
CORP-Corporate Office
United States
…our customer’s high expectations. The Staff Embedded Software Engineer designs, develops, operates, and maintains software and firmware components and computing systems software to be…
Added 18 mins ago
Sentinel - Systems Engineer / Principal Systems Engineer - 20060
CORP-Corporate Office
United States
Northrop Grumman Defense has an opening for a Systems Engineer (level 2)/Principal Systems Engineer (level 3) to support a Futures Program within the Command Systems Business Unit (BU)…
Added 18 mins ago
Sr Principal Engineer Systems
CORP-Corporate Office
United States
As an Integration and Test (I&T) Lead on this team, you will define and develop processes to be implemented at the segment, and element levels that verify, and validate requirements for the…
Added 18 mins ago
CO
2027 Spring Co-op Software Engineer Intern – McClellan CA
CORP-Corporate Office
United States
- $21.5 to $48 USD / hour
Perform unit, integration, and system‑level testing using automated test frameworks and continuous integration pipelines.
Added 18 mins ago
DevOps Engineer - Level 3 or 4
CORP-Corporate Office
United States
Northrop Grumman Space Systems, Multi-Domain Operations, and Missile Defense Integration Business Unit (BU) has an exciting career opportunity for a Principal DevOps Engineer – Level 3 or a…
Added 18 mins ago
Reliability Systems Safety Engineer 3/4
CORP-Corporate Office
United States
The Reliability/Systems Safety Engineer Level 3 /4 we are seeking will be an individual who thrives in a diverse work environment, has outstanding communication skills and possesses a…
Added 18 mins ago
DE
Principal Software Engineer
Disney Entertainment & Sports LLC
Glendale, CA
- $191,300 to $256,500 USD / year
As the Principal Software Engineer for the Rights & Accounting team within Content Platforms, you will serve as a senior technical leader, driving engineering standards, leading…
Added 18 mins ago
Software Engineer in Test (Python)
Hitachi Global
San Jose, CA
Build and scale continuous integration/continuous deployment (CI/CD) pipelines in Jenkins for continuous testing of infrastructure components.

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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