Senior Node.js Developer – Portugal Full Remote

ABOUT THE OPPORTUNITY Join an established international software engineering company delivering cloud-based products for clients across Europe, North America and Asia. You'll work in a politics-free, self-organised environment where the whole team owns the project together — freedom and responsibility go hand in hand, and engineers are trusted to take risks and make decisions. This is a fully remote role for candidates based in Portugal. PROJECT & CONTEXT You'll build highly performant and secure backend services used by thousands of customers and handling millions in monthly transaction revenue. Expect to design and implement cloud-native solutions, work closely with front-end engineers, and take full ownership of your code from development through deployment, monitoring and production troubleshooting. The team works in an Agile, iterative setup with a strong operational mindset — metrics collection, performance and platform-wide thinking are part of everyday engineering, not an afterthought. WHAT WE'RE LOOKING FOR (Required) 5+ years experience with Node.js 18/20 LTS and modern JavaScript (ES2022+) Strong TypeScript 5.x skills, including typing of asynchronous and event-driven code Proven track record building performant, resilient and secure backend services Experience with asynchronous and event-driven workflows (queues, streams, pub/sub) Deep understanding of HTTP, REST and/or GraphQL and service-oriented architectural patterns Testing as a first-class practice: unit and integration testing (Jest, Vitest or equivalent) with maintained coverage Git-based version control within a continuous delivery process Comfortable working autonomously with little supervision towards shared team goals Fluent English (written and spoken) — the working language of the team NICE TO HAVE (Preferred) Hands-on experience with AWS, GCP or Azure SQL (PostgreSQL 14+, MySQL 8) and NoSQL (MongoDB 6+, DynamoDB, Redis 7) data stores React 18+ exposure for closer collaboration with front-end teams Code quality tooling: ESLint 8+, Prettier, static analysis and type checkers Agile delivery experience with Scrum or Kanban Integration work between systems such as warehouse management and eCommerce platforms Docker and CI/CD pipeline experience Portuguese language skills (not required) Compensation: €2,500 – €3,250/month net, depending on experience and seniority level. Why HumanIT people stay (4.4 Glassdoor, 89% recommend) 15th month salary Health insurance covering your family Birthday off Mobility program for digital nomads Real work-life balance Full benefits: https://www.humanit.pt/careers/#perks What it's really like: https://www.humanit.pt/careers/#work-at