Senior Backend Developer (Node.js / Python)

Senior Backend Developer (Node.js / Python)

Portugal | Remote (Residents in Portugal)

We are strengthening our team with a Senior Backend Developer to join international projects focused on building scalable APIs, microservices, and cloud-native architectures.

If you have strong experience in backend development and modern distributed systems, this could be your next challenge.

Key Responsibilities

• Design, develop, and maintain scalable REST and GraphQL APIs;
• Define and implement microservices architectures;
• Design and optimize relational and NoSQL databases;
• Integrate third-party services and external APIs;
• Participate in code reviews and contribute to architectural decisions;
• Ensure application security standards (OWASP, OAuth2/OIDC);
• Analyze and optimize system performance;
• Collaborate with frontend teams and Product Owners;
• Produce technical documentation and follow best practices.

Technical Requirements

• Strong experience with TypeScript and Node.js (primary stack);
• Experience with Python:
• Deep understanding of API-driven design (API-first, versioning, OpenAPI/Swagger);
• Experience with ORM frameworks (Prisma, SQLAlchemy);
• Experience with message brokers (Kafka, RabbitMQ, or NATS);
• Experience with serverless architectures (AWS Lambda and/or Azure Functions);
• Hands-on experience with Docker and Kubernetes;
• Experience with CI/CD pipelines (GitLab CI, GitHub Actions, Jenkins);
• Experience with at least one cloud provider (AWS, Azure, or GCP);
• Strong knowledge of relational and NoSQL databases (PostgreSQL, MongoDB, Redis, etc.);
• Experience working in Agile environments;
• English (B2+) required | German is a plus.

Nice to Have

• Experience with Event-Driven Architecture and CQRS/Event Sourcing;
• Knowledge of API Gateway solutions (Kong, AWS API Gateway);
• Experience with SAP Commerce Cloud (Hybris);
• Certifications (AWS Certified Developer, CKAD, or similar);
• Knowledge of observability tools (Prometheus, Grafana, OpenTelemetry).

Project Context

• Integration in international teams;
• Remote work model;
• Agile environment with focus on delivery, quality, and continuous improvement.

Interested? Feel free to send me a private message or share your CV: