Senior/Staff Frontend Engineer
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Senior/Staff Frontend Engineer (Next.
Js/JavaScript)
- Portugal Full RemoteABOUT THE OPPORTUNITYWe're looking for a Senior/Staff Frontend Engineer who has spent years building fast, reliable web products used by large audiences.
You'll own architectural decisions on complex Next.
Js applications.
You'll shape how the frontend scales, performs and gets tested, in a self-organized environment that trusts senior engineers to lead.
PROJECT & CONTEXTYou'll join a product-driven digital company that builds high-traffic, web-native platforms for a global audience.
Performance, SEO and accessibility are core to the product here.
You'll drive the architecture of large Next.
Js applications, including scaling within the App Router ecosystem.
You'll also push a strong testing culture that keeps production reliable.
Teams work with a high degree of autonomy, and engineers own their decisions, their impact and how their careers grow.
WHAT WE'RE LOOKING FOR (Required)9+ years of professional software engineering experience, mainly on high-traffic, web-native products (SaaS, consumer web or large-scale digital platforms)Proven experience driving the architecture of complex Next.
Js applications (App Router, Next.
Js 13+)Deep understanding of rendering strategies: SSR, SSG, ISR and React Server Components (RSC), plus caching strategiesExperience moving to or scaling within the App Router ecosystemStrong command of Vanilla JavaScript (ES6+), DOM manipulation and browser mechanics, and how the web works beneath the frameworksHands-on focus on web performance: Core Web Vitals, SEO optimization and accessible, fast user interfacesA shift-left mindset with rigorous automated testing practices for production web appsOwnership, self-motivation and the ability to thrive in a self-organized environmentFluent English (written and spoken)NICE TO HAVE (Preferred)
- Experience building reusable frontend architecture, tooling and abstractions that speed up internal AI development across multiple teamsCompensation: €2,800 – €3,650/month net, depending on experience and seniority level.
Why HumanIT people stay (4.4 Glassdoor, 89% recommend)15th month salaryHealth insurance covering your familyBirthday offMobility program for digital nomadsReal work-life balanceFull
benefits:
it's really like: