Senior Fullstack Engineer (React, Node.js)

Our client company is a rapidly growing UK-based fintech building a next-generation international payments and FX platform. Regulated by the FCA as an Electronic Money Institution, they help businesses around the world pay and get paid in multiple currencies — simply, fast, and without borders.

As they scale their core R&D team, they’re looking for a Senior Fullstack Engineer who’s product-oriented, proactive, and thrives in an environment where engineering drives business impact. If you enjoy autonomy, smart teammates, and real ownership — this is a place where your work matters.

🔧 What you'll be working on:

• Building and evolving core features across the platform using React, Node.js, PostgreSQL, and MongoDB
• Designing scalable APIs (REST, GraphQL) and robust backend architecture
• Shipping features end-to-end in collaboration with design, product, and ops
• Owning technical decisions in a modern cloud-native setup (AWS, Docker)
• Driving best practices, improving performance, and mentoring teammates
  
   

🚀 We’re looking for someone who:

• Has 5+ years of experience in fullstack role
• Writes clean, scalable code and cares about architecture as much as execution
• Is confident working with React, Node.js, and cloud environments (preferably AWS)
• Speaks English at B2+ level — you’ll be collaborating with an international team
• Enjoys autonomy, thrives in a startup-style setup, and is comfortable making decisions
• Will be a plus fintech or payment-related experience
  
   

✨ What makes this opportunity special:

• You’ll join a lean, senior team where decisions are fast and your voice matters
• You’ll work closely with product and business teams to deliver real customer value
• You’ll enjoy minimal meetings, async communication, and focus time
• You’ll use a modern, well-maintained stack: PostgreSQL, MongoDB, Node.js, React, GraphQL, Cypress, Jest, Docker, AWS
  
   

💼 Contract & perks:

• Full-time B2B cooperation
• Paid vacation and sick leave
• Hybrid or remote setup — you can work from anywhere, or optionally join team hubs in Lisbon or Bucharest
• Transparent roadmap, supportive culture, and direct access to leadership
  
   

If you're looking for a role where you can build, own, and grow — this team is ready for you.