Senior Fullstack Engineer

🕒 August 3

🇪🇸 Spain – Remote

💵 €4.9k - €6.1k / month

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 31%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

Apply Now

Find Similar Remote Jobs

Set Up Email Alert For New Jobs

📊 Check your resume score for this job

Improve your chances of getting an interview by checking your resume score before you apply.

Upload Resume

Fundraise Up

WebsiteLinkedInAll Job Openings

51 - 200 employees

🤲 Charity

💳 Fintech

☁️ SaaS

Charity • Fintech • SaaS

Fundraise Up is a digital platform that revolutionizes the way nonprofits conduct online fundraising. It offers a suite of tools designed to enhance donor engagement and boost conversion rates, including optimized campaign pages, a checkout system, and pre-built UI components. Fundraise Up supports global fundraising with multi-language capabilities and provides comprehensive security features to protect both donor data and the fundraising process. It integrates seamlessly with various platforms and uses artificial intelligence to personalize the donation experience. Its mission is to maximize donations for causes worldwide through innovative technology and strategic partnerships with nonprofits.

📋 Description

• Design, build, and maintain resilient frontend and backend features using React and Node.js • Develop donation checkouts, embeddable widgets, and donor/partner portals • Architect and develop system components scaling across millions of monthly transactions • Write clean, well-documented, and thoroughly testable code • Drive architecture and technical design discussions • Mentor peers through code reviews and constructive feedback • Partner with product managers and designers to clarify requirements and shape the roadmap • Identify and resolve bugs, performance bottlenecks, and optimization opportunities • Actively use AI in day-to-day work and identify opportunities for AI to improve engineering workflows

🎯 Requirements

• 7+ years of professional fullstack development experience • Deep understanding of modern JavaScript, including event loop, closures, promises, and prototypes • Expert-level proficiency with React and its ecosystem • Strong backend expertise with Node.js • Experience with Webpack configuration, performance optimization, and profiling • High sense of ownership and accountability • Experience with Koa or NestJS is highly preferred • Familiarity with Vue.js is a plus • Experience with MongoDB, ClickHouse, or Elasticsearch is nice to have • Familiarity with Docker, CI/CD pipelines, or cloud infrastructure is nice to have • Contributions to open-source projects or a strong personal portfolio are nice to have

🏖️ Benefits

• Equity options • Private medical insurance for the employee and their family • 23 paid vacation days per year • 11 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 for furniture and other workspace items • Co-working • Remote working