RemoteLeaf Logo
Log in Sign up

Fullstack Developer

1 week, 1 day ago
Spain
Full-time
Senior
Full-stack Engineer
Software Development
Bull CI/CD ClickHouse Docker Elasticsearch JavaScript Kafka Koa MongoDB NestJS Node.js React Redis TypeScript Vue.js
Apply Now
Fundraise Up

Fundraise Up

Fundraise Up specializes in enhancing online donation processes through AI-driven conversion optimization and integrated payment solutions, enabling organizations to maximize their fundraising potential and improve donor engagement.

Capital Markets
51-250
Founded 2017
View All Jobs 94

Description

  • Design, build, and maintain resilient frontend and backend features using React and Node.js.
  • Develop 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 solve complex problems.
  • Mentor peers through thoughtful code reviews and 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.
  • Actively use AI in day-to-day work and apply it to improve problem-solving and delivery.

Requirements

  • 7+ years of professional fullstack development experience.
  • Deep understanding of modern JavaScript, including the event loop, closures, promises, and 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.
  • High sense of ownership and accountability for your work.
  • Experience with MongoDB, ClickHouse, or Elasticsearch is a plus.
  • Familiarity with Docker, CI/CD pipelines, or cloud infrastructure is a plus.
  • Contributions to open-source projects or a strong personal portfolio are preferred.
  • Curiosity, a hypothesis-driven mindset, and comfort working in fast-paced, data-rich environments are a plus.

Benefits

  • €4,900 - €6,100 gross per month compensation range.
  • Private medical insurance for the employee and their family.
  • 23 paid vacation days per year plus 11 paid public holidays.
  • 5 company-paid sick leave days.
  • Equity options with a long-term focus on sustained contribution.
  • English learning courses and relevant professional education.
  • Gym or swimming pool benefit.
  • Home office setup assistance for furniture and equipment.
  • Remote working and co-working support.

Interested in this position?

Apply directly on the company website

Apply Now

Similar Roles

INFUSE

Sr. Full Stack .NET Developer (Remote, Contract)

INFUSE 251-1K Professional Services

INFUSE is hiring a Senior Full Stack .NET Developer to build and evolve internal automation products for its Intelligent Automation Department, spanning backend, frontend, integrations, and operational tooling.

Poland Contract Senior Full-stack Engineer
Angular Azure C# CI/CD CSS Docker Git HTML JavaScript MongoDB .NET Playwright Python React REST API Selenium TypeScript Vue.js
14 hours, 39 minutes ago
Jobrack

Downeast Cider - AI Full Stack Developer

Jobrack 11-50 Professional Services

Downeast Cider is hiring an AI Full Stack Developer to become its first technical employee and build production-ready internal tools that improve operations across the business.

South Africa North Macedonia Poland Romania Serbia Georgia Contract Senior AI Engineer Full-stack Engineer
$60k-$72k
CRM GCP JavaScript NetSuite Python Shopify Snowflake SQL TypeScript
14 hours, 53 minutes ago
Cresta

Senior Product Engineer, Cresta Labs

Cresta 51-250 Professional Services

Cresta is hiring a Labs software/ML engineer to help design, prototype, test, and ship AI-native product experiences for enterprise customer interactions.

United States Full-time Senior Full-stack Engineer
LLM Machine Learning Prototyping
15 hours, 9 minutes ago
AssureSoft

FullStack Developer - Magento

AssureSoft 51-250 Internet Software & Services

AssureSoft is hiring a remote Magento 2 Developer to build and maintain e-commerce storefronts, integrations, and supporting backend systems for long-term client projects.

Latin America Full-time Mid Level Full-stack Engineer
Agile AWS CI/CD CSS Docker Elasticsearch Git GitHub Actions GraphQL HTML JavaScript Jenkins Linux Magento Microservices MySQL PHP Python RabbitMQ React Redis REST API Shell Scripting SQL Vue.js
15 hours, 24 minutes ago

You're on a roll! Sign up now to keep applying.

Sign Up

Already have an account? Log in

Used by 14,729+ remote workers