Senior Frontend Engineer – Real-Time Cyber Ops UI

Posted today

jobleadsusArlington (VA)

Software Developers Computer Systems Design Services

SENIORITY

Senior

Apply

About the role

Twenty Technologies is seeking a senior frontend engineer who will build mission-critical operator interfaces in React/TypeScript. You will own features end-to-end, work with cross-functional teams, and ship reliable interfaces for real-time cyber operation data in cloud and on-prem environments. The role emphasizes performance, testing, and secure engineering practices, with collaboration across frontend, backend, product, design, and operations to deliver high-quality user experiences on-site

Before you apply

Applying takes about a minute. These four things decide how fast it moves after that.

Your profile is current

It's what we read first. Occupations, seniority and locations matter more than a long history.

Two examples you can talk through

Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.

A number in mind

What you're on now and what would make you move. We negotiate better when we know both.

Your notice period

Employers plan around it, and it's the question that stalls offers most often.

Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.