Senior Node.js Developer

LionHires is hiring specialists who have already relocated from Russia.

LionHires is a global recruitment partner for Fintech, iGaming, and Product Development.

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Important: This is an On-Site Position in Valencia

This is an on-site position based at our office in Valencia. 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 Valencia or are eager to relocate to Spain. To make your transition smooth, we provide full relocation support and visa sponsorship for successful international candidates.

See where you'll be working: Spain

• We are looking for an experienced Senior Node.js Developer to join our development team in Valencia and help build and scale the backend of our platforms. This is a hands-on role where you will design, code, and optimize high-performance systems while working on exciting projects in a fast-paced environment.

Your Mission

Contribute to the design and development of scalable backend systems and services, ensuring robustness, high performance, and maintainability. Work closely with cross-functional teams to integrate third-party APIs, build new features from scratch, and enhance the core architecture of our platforms.

Responsibilities

• Develop and maintain in-house backend platforms with Node.js and Nest.js.
• Design and implement third-party API integrations.
• Build new features and services from scratch in a microservices environment.
• Optimize performance and scalability for high-load systems.
• Write clean, testable, and maintainable code following best practices.
• Participate in code reviews, knowledge-sharing, and continuous improvement initiatives.
• Collaborate with frontend, QA, and product teams to ensure high-quality deliveries.

Requirements

• 5+ years of professional experience in web development.
• 3+ years of hands-on experience with Node.js and Nest.js.
• Strong knowledge of JavaScript (ES6+).
• Experience with high-load SQL and/or NoSQL databases (MongoDB, MySQL, etc.).
• Proven experience implementing REST, GraphQL, and WebSockets.
• Understanding of TDD principles and experience writing automated tests.
• Solid understanding of microservice architecture principles.
• Experience with Git and modern CI/CD workflows.
• Experience with Redis and RabbitMQ.
• Advanced level of English.

Nice to Have

• 2+ years of experience with CI/CD, microservices, and containers.
• Experience with Kubernetes.
• Experience with NATS.
• Strong knowledge of TypeScript.

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.

Bold moves start here. Make yours. Apply today!