Senior Node.js Developer at Lionhires

✨ The Stack take on this Lionhires job

• 🏢 Lionhires has 10 jobs here, 10 with visa sponsorship see all
• 🛂 Visa: EU Blue Card. Salary: At least 1.5 times the national average annual salary (1.2 times in some cases) guide
• 💡 No salary shown. Ask Lionhires if it is above the minimum.

Updated 2026-11-05, from our data and official sources.

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About the role

Responsibilities:
- Design, implement and maintain backend services and microservices using Node.js and Nest.js.
- Build new features, APIs (REST/GraphQL/WebSockets) and third-party integrations with a focus on scalability and reliability.
- Optimize performance and latency for high-load systems; tune SQL/NoSQL databases (MongoDB, MySQL) for throughput and resilience.
- Implement messaging and caching solutions (Redis, RabbitMQ) for distributed workflows.
- Write clean, testable code and apply TDD practices; maintain CI/CD pipelines and participate in code reviews.
- Collaborate with frontend, QA and product teams to deliver end-to-end solutions and ensure operational readiness.

Requirements:
- 5+ years in web/backend development with at least 3 years hands-on with Node.js and Nest.js.
- Strong JavaScript (ES6+) skills; TypeScript experience is a plus.
- Proven experience with both SQL and NoSQL databases in high-traffic environments.
- Familiarity with REST, GraphQL and WebSocket APIs and microservice architecture.
- Practical experience with Redis, RabbitMQ or similar messaging/caching systems.
- Good testing practices (TDD), Git and CI/CD workflows; strong communication skills in English.
- Bonus: containerisation (Docker), Kubernetes experience, and prior exposure to finance/gaming domains.

Responsibilities

Design and develop robust, scalable backend platforms and microservices using Node.js and Nest.js. Collaborate with cross-functional teams to integrate third-party APIs and optimize system performance for high-traffic applications.

Requirements

Requires over 5 years of web development experience, with at least 3 years specializing in Node.js and Nest.js. Candidates must be proficient in JavaScript, database management, and microservice architecture with fluent English skills.

Key skills

• Node.js — in 172 other listings on The Stack
• Nest.js — in 6 other listings on The Stack
• JavaScript — in 141 other listings on The Stack
• SQL — in 545 other listings on The Stack
• NoSQL — in 52 other listings on The Stack
• MongoDB — in 57 other listings on The Stack
• MySQL — in 93 other listings on The Stack
• REST — in 32 other listings on The Stack
• GraphQL
• WebSockets
• Microservices
• Redis
• RabbitMQ
• TDD
• Git
• CI/CD

On The Stack (as of 2026-11-05)

• Lionhires has 9 other listings on The Stack, 9 of them marked as offering visa sponsorship.
• 20 visa-sponsored jobs in Portugal on The Stack, posted in the last 60 days.

Frequently asked questions about Lionhires

Is this Senior Node.js Developer role still open?

It was posted on 2026-07-07. Listings more than 30 days old may no longer be active, so check Lionhires's site before applying.

Does Lionhires offer visa sponsorship?

This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Lionhires's site.

Where is this role located?

The listing gives the location as Portugal. It is marked on-site.

What skills does this role ask for?

The listing names: Node.js, Nest.js, JavaScript, SQL, NoSQL, MongoDB, MySQL, REST, GraphQL, WebSockets, Microservices, Redis, RabbitMQ, TDD, Git, CI/CD.