Fullstack Developer

Fundraise Up

Senior Fullstack Developer for Fundraise Up, building scalable features in a Russian-speaking team. Focus on Node.js, React, and TypeScript in a remote setting.

Posted 6/22/2026full-timeRemote • 🇵🇹 PortugalSeniorLead💰 €4,650 - €5,800 per monthWebsite

Tech Stack

Tools & technologies

JavaScriptNode.jsReactVue.jsWebpack

About the role

Key responsibilities & impact

Design, build, and maintain resilient frontend and backend features using React and Node.js.
Develop our core products, including donation checkouts, embeddable widgets, and donor/partner portals.
Architect and develop system components that scale across millions of monthly transactions.
Write clean, well-documented, and thoroughly testable code.
Drive architecture and technical design discussions to find elegant solutions to complex problems.
Mentor peers by conducting thoughtful code reviews and providing constructive feedback.
Partner with product managers and designers to clarify requirements and shape the roadmap.
Proactively identify and resolve bugs, performance bottlenecks, and optimization opportunities.

Requirements

What you’ll need

7+ years of professional fullstack development experience.
Deep understanding of modern JavaScript (event loop, closures, promises, prototypes).
Expert-level proficiency with React and its ecosystem (familiarity with Vue is a plus).
Strong backend expertise with Node.js (experience with Koa or NestJS is highly preferred).
Experience with Webpack configuration, performance optimization, and profiling.
A keen eye for detail and a high sense of ownership and accountability for your work.

Benefits

Comp & perks

Private medical insurance for the employee and their family.
22 paid vacation days per year.
Up to 14 paid public holidays per year.
5 company-paid sick leave days.
English learning courses.
Relevant professional education.
Gym or swimming pool.
Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace.
Co-working.
€50 monthly allowance to cover internet and mobile phone expenses.
Remote working.

ATS Keywords

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Hard Skills & Tools

ReactNode.jsJavaScriptKoaNestJSWebpackperformance optimizationfrontend developmentbackend developmentfullstack development

Soft Skills

mentoringcode reviewsconstructive feedbackproblem-solvingattention to detailownershipaccountabilitycommunicationcollaborationtechnical design discussions