Senior Software Engineer - AI-First, Scalable Systems (Remote)

Grupo QuintoAndar; Portugal; Remote; EUR 90,000 - 140,000; Full time

Benefits offered by this job

Health insurance

Life insurance

Work From Anywhere program

Home office allowance

Extended parental leave

Day off on birthday

Job summary

Grupo QuintoAndar is seeking a Staff Software Engineer in Portugal to drive technical execution for a remote-first, AI-powered platform. You will design scalable microservices, shape architecture, and push for low-latency, data-driven systems.

You will mentor engineers, own end-to-end delivery, and collaborate across teams to deliver robust backend solutions with observability and strong quality practices. You will work on an architecture that embraces AI integrations, Cloud services, and modern

Qualifications

• Solid experience building and evolving software architecture for high-volume, distributed systems.
• Strong understanding of database design, evolution, and complex data modeling.
• Skilled in creating and maintaining RESTful APIs, with a strong grasp of system integration.
• Experience with tools and practices for software monitoring, observability, and performance tracking (Datadog, New Relic, etc.).
• A true builder mindset: strong problem-solving skills, seeking to learn, and aiming to deliver real impact through high-quality, data-driven software.
• Fluency in Portuguese and advanced English.

Responsibilities

• Build at Scale: Design, develop, and maintain highly scalable and resilient microservices capable of handling 50M+ monthly accesses and high-concurrency environments.
• AI-First Integration: Architect platform evolution to integrate robust backend systems with AI/LLM capabilities and large data ecosystems.
• End-to-End Ownership: Own the full software lifecycle—definition, development, testing, production, and maintenance; foster observability and proactive post-mortems.
• Quality Guardian: Enforce excellent software practices; participate in code and design reviews.
• Mentorship: Guide mid-level and junior engineers, raise technical standards across teams.

Skills

Software architecture

Distributed systems

Database design

RESTful APIs

Observability

Problem solving

Portuguese

English

Tools

Datadog

New Relic

Kubernetes

Docker

Kafka

RabbitMQ

Job description

Grupo QuintoAndar is seeking a Staff Software Engineer in Portugal to drive technical execution for a remote-first, AI-powered platform. You will design scalable microservices, shape architecture, and push for low-latency, data-driven systems.

You will mentor engineers, own end-to-end delivery, and collaborate across teams to deliver robust backend solutions with observability and strong quality practices. You will work on an architecture that embraces AI integrations, Cloud services, and modern