Senior Full Stack Developer (Node.js & React)

❗️ Important: This is an On-Site Position in Lisbon❗️

This is an on-site position based at our office in the Lisbon Metropolitan area. Remote or hybrid arrangements are not available once you join the team.

Are you ready for an international move? We are looking for candidates who are either already based in Lisbon or are eager to relocate to Portugal. To make your transition smooth, we provide full relocation support and visa sponsorship for successful international candidates.

📍 See where you'll be working: BrainRocket Portugal

⚡ We are looking for an experienced Senior Full Stack Developer (Node.js & React) to join our development team in Lisbon. This role is 80% Backend (Node.js) and 20% Frontend (React), where you’ll help build and scale a next-generation payments integration platform that connects businesses with multiple financial service providers through secure, high-performance APIs.

🎯 Your Mission
Design and implement robust solutions that power our payments platform, ensuring scalability, security, and reliability. You will contribute to building seamless integrations with banks and payment providers while actively participating in the evolution of a cutting-edge fintech product.

✅ Responsibilities
• Design, implement, and optimize backend-heavy solutions for our proprietary payments platform
• Develop and maintain complex integrations with banks, PSPs, and other third-party providers
• Actively participate in the full feature lifecycle, from concept and design to implementation and release
• Contribute to the continuous evolution of our fintech payments solution, ensuring adaptability to market needs
• Collaborate within agile development cycles (Scrum), including grooming, sprint planning, and bi-weekly releases
• Identify opportunities to improve technical approaches, performance, and development processes
• Work closely with design, product, and business teams to align features with user and business needs

✅ Requirements
• 5+ years of professional experience in web development
• 3+ years of hands-on experience with Node.js
• 3+ years of frontend experience with React
• Solid experience with Next.js, Nest.js, Apollo, and Material UI
• Strong proficiency in TypeScript
• Experience with high-load SQL and/or NoSQL databases
• Hands-on experience with REST, GraphQL, and WebSockets
• Knowledge of TDD and experience writing automated tests
• Understanding of microservice architecture principles
• Proficiency with Git workflows
• Hands-on experience with RabbitMQ and Redis
• Experience with MongoDB and MySQL
• Advanced English skills (written and spoken)

✅ Nice to Have
• Experience in Fintech or payment systems
• Exposure to Kubernetes or containerized environments
• Familiarity with DevOps practices (CI/CD, cloud deployment)

✅ Recruitment Process:

1. Interview with the Recruiter: An introductory conversation to get to know you better, discuss your background, and align expectations about the role and the company.
2. Technical Assessment (HackerRank): A short coding challenge designed to evaluate your technical skills and problem-solving abilities.
3. Technical Interview: An in-depth discussion about your technical expertise, hands-on experience, and approach to solving real-world problems.
4. Final Interview with the Hiring Team: A conversation with team members and leadership to assess cultural fit, collaboration style, and alignment with the team’s goals.
5. Offer: If everything goes well, we’ll move forward with a formal offer to join our team.

✅ We offer excellent benefits, including but not limited to:
💻 Learning and development opportunities and interesting, challenging tasks.
✈️ Relocation package (tickets, staying in a hotel for up to 2 weeks, and visa relocation support for our employees and their family members).
📚 Opportunity to develop language skills, with partial compensation for the cost of English and Portuguese language classes (for localization purposes).
🎾 Partial compensation for tennis and padel lessons.
🏀 Urban Sport membership benefit (the most diverse sports and wellness offering in Europe, with more than 50+ activities).
🏥 Private medical coverage, including inpatient, outpatient, dental care, annual check-ups, and maternity support.
🏝 Time for proper rest, with 24 non-business days per year and an additional 6 paid sick days.
🚌 Transport compensation - 200 euros net per month.
📈 Competitive remuneration level with annual review.
🤝 Teambuilding activities.