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senior observability jobs near lisboa, p11

Senior Node.js Developer

Nearshore Portugal
Lisboa

Candidate-se agora

Detalhes da oferta

Período Integral

Descrição completa da oferta

Apply to one of our open positions or send us a spontaneous application to [email protected]

Description

We are looking for a Senior Node.js Developer with strong hands-on experience building, scaling, and maintaining production backend systems.
This role requires more than theoretical knowledge: we are looking for someone who can demonstrate senior-level expertise in Node.js, API architecture, performance troubleshooting, distributed systems, and technical decision-making.

Requirements

Proven experience with Node.js backend development in production environments
Strong knowledge of scalable API architecture
Experience with performance optimization and troubleshooting
Solid understanding of asynchronous programming and event-driven systems
Experience with SQL and/or NoSQL database design and optimization
Experience with Docker and containerized deployments
Knowledge of monitoring, logging, and observability practices
Understanding of distributed systems concepts
Ability to explain Node.js internals, including the Event Loop, Worker Threads, and Child Processes
Experience handling race conditions, duplicate requests, and idempotency
Strong debugging and root cause analysis skills

Responsibilities

Design, develop, and maintain scalable backend services using Node.js
Build and optimize APIs capable of handling high traffic volumes
Investigate and resolve production performance issues
Contribute to architectural decisions and technical planning
Ensure backend systems are reliable, observable, and maintainable
Collaborate with teams to improve system performance and scalability
Mentor junior developers and support technical growth within the team
Implement preventive measures after production incidents

Nice to have

Experience designing systems handling millions of API requests per day
Experience with microservice architectures and monolithic-to-microservice trade-offs
Strong background in production incident management
Previous experience in technical leadership or mentoring roles
Experience working with high-availability or distributed systems

Working conditions

Senior-level backend development role
Focus on production-grade Node.js systems
Opportunity to contribute to architecture and technical decisions
Work with scalable APIs, distributed systems, monitoring, and performance optimization
Collaboration with a technical team that values ownership, structured problem-solving, and high-quality engineering

Work type

Full-time

Location

Portugal | NP Lisbon

Candidate-se agora

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senior observability vagas para: lisboa, p11

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