Seeking a Senior Backend Engineer to architect and scale a core in-house platform using Node.js/Nest.js. Responsibilities include microservice development, API integrations, and high-load database optimization. Requires 5+ years of experience, modern JavaScript proficiency, and TDD principles.
Key Highlights
Key Responsibilities
Technical Skills Required
Benefits & Perks
Nice to Have
Job Description
About the Role
Are you a Senior Backend Engineer who thrives on building high-performance architectures and scaling complex systems from scratch? We are looking for a Node.js/Nest.js expert to spearhead the development of our core, in-house platform, driving innovation across high-load environments. If you want to own your code, work with cutting-edge microservices, and make a tangible impact on a rapidly growing ecosystem, this is your next big move.
About the Client
Our partner is a tech company building product engineering across Fintech, iGaming, and Marketing. They turn innovative ideas into high-performing engines and launch them at scale. As their exclusive recruitment partner, Lionhires manages their full-cycle talent acquisition.
What You Will Do
- Architect and develop the core in-house platform, taking new, high-impact features from initial concept to production scale.
- Design and implement robust microservices and build seamless integrations with various third-party APIs.
- Optimize database performance for high-load systems, working extensively with both SQL and NoSQL solutions.
- Champion code quality by applying TDD (Test-Driven Development) principles and writing comprehensive automated tests.
- Collaborate cross-functionally to ensure scalability, reliability, and high availability across all backend services.
Looking to advance your Development & Programming career with relocation support? Explore Development & Programming Jobs with Relocation Packages that include comprehensive packages to help you move and settle in your new role.
What You Bring
- Deep Backend Expertise: 5+ years of commercial web development experience, with a heavy focus on Node.js and Nest.js.
- Modern JavaScript Proficiency: Strong mastery of modern JavaScript and ECMAScript 6+ standards (TypeScript is a major plus).
- High-Load Database Management: Proven experience handling high-load database environments, specifically using MongoDB and MySQL.
- Advanced Communication Protocols: Practical experience implementing RESTful APIs, GraphQL, and WebSockets.
- Message Brokers & Caching: Hands-on experience working with RabbitMQ and Redis (experience with Nats is a plus).
- Architectural Mastery: Solid understanding of microservice architecture and version control via Git.
- Quality & Testing Mindset: Strong grasp of TDD principles and a habit of writing clean, testable code.
- Language Skills: Professional working proficiency in English (Intermediate level or higher).
Discover our full range of relocation jobs with comprehensive support packages to help you relocate and settle in your new location.
Nice-to-Haves:
- 2+ years of hands-on experience working with CI/CD pipelines, containerization, and microservices.
- Direct experience with Kubernetes.
What's in It for You
- Financial Growth: Highly competitive salary with structured annual compensation reviews.
- Full Relocation Support: A complete relocation package including covered flight tickets and a 2-week hotel stay upon arrival.
- Legal Peace of Mind: Official EU/Spain employment contract, including registration and support for your family members.
- Work-Life Balance: 23 working days of paid annual vacation to ensure you rest and recharge properly.
- Professional Development: Continuous learning opportunities, challenging tasks, and language development support with partial class compensation.
- Culture & Community: Vibrant team-building activities, custom birthday gifts, and access to our upcoming Social Club featuring over 50 events per year.
Similar Jobs
Explore other opportunities that match your interests
Haystack
AI Agent Engineer
Nexthink
Platform Engineer