Senior Backend Engineer - Node.js, MongoDB, AI-ready APIs

Planet Paymet; Lisboa; Híbrido; EUR 65 000 - 90 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Hybrid work model

Resumo da oferta

Planet is seeking a Senior Backend Engineer to design, build, and scale high-performance backend services in a hybrid cloud environment. You will shape API design, data models, and system architecture to support modern applications and evolving workloads for a RESTful backend consumed by Angular frontends.

You will implement efficient MongoDB schemas, optimize queries and caching, and design stateless services for horizontal scalability, including AI-enabled data workflows where relevant.

Qualificações

• Experience building scalable backends with REST APIs.
• Strong knowledge of Node.js and TypeScript.
• Experience with MongoDB data modeling and performance tuning.

Responsabilidades

• Design and develop RESTful APIs using Node.js.
• Build backend services optimized for Angular frontend consumption.
• Ensure consistency in API structure and response formats.
• Write clean, maintainable, and testable code.
• Design efficient MongoDB schemas aligned with application and data usage patterns.
• Optimize queries, indexing strategies, and aggregation pipelines.
• Structure data models to support analytics and AI use cases.
• Architect systems for high throughput and low latency.
• Identify and resolve performance bottlenecks.
• Implement caching strategies (Redis or similar).
• Design stateless services for horizontal scalability.
• Design predictable, frontend-friendly REST endpoints.
• Optimize payloads for Angular services and UI performance.
• Implement pagination, filtering, and consistent error handling.
• Support integration of AI-powered features (insights, automation, recommendations).
• Expose clean, structured data usable by AI/ML and LLM-based systems.
• Contribute to pragmatic use of data pipelines or AI services.

Conhecimentos

REST API design

Node.js

System design

AI concepts for data workflows

Ferramentas

MongoDB

TypeScript

Redis

Descrição da oferta de emprego

Planet is seeking a Senior Backend Engineer to design, build, and scale high-performance backend services in a hybrid cloud environment. You will shape API design, data models, and system architecture to support modern applications and evolving workloads for a RESTful backend consumed by Angular frontends.

You will implement efficient MongoDB schemas, optimize queries and caching, and design stateless services for horizontal scalability, including AI-enabled data workflows where relevant.