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: