Middle/Senior JavaScript/Node.js Developer Jobs

Ascendix Tech

Location:
Portugal

Category:
IT - Software Development

Contract Type:
B2B

Salary:

Not provided

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Job Description:

Ascendix Technologies is a software and services technology company. We are specifically looking for a JavaScript/Node.js Developer with experience working with AI integrations, and we are ready to offer assignments on ongoing AI-related projects.

Job Responsibility:

Development of new functionality
Investigate and integrate AI services
Constantly learn and extend the expertise
Take part in code reviews
Create and maintain tech documentation

Requirements:

4+ years of commercial experience with back-end development using Node JS
1+ years of commercial experience with integrations with LLMs (OpenAI ChatGPT, Anthropic Claude or similar)
Willing to keep up with AI trends, ability to investigate new approaches
Intermediate or higher English

Nice to have:

Experience with Azure AI Services or Amazon Textract
Experience with Langchain or LLamaIndex
Experience with Nest JS
Experience with modern frontend framework React.js or Vue.js
CI/CD processes experience
Knowledge of Unit Testing frameworks

What we offer:

Health insurance
Vacation days: 22 days per year
Paid Time off Benefits
Meal Card
Friendly and calm atmosphere in the company
Individual development plan
Technical leads and mentors
Open management and well-established processes
Regular performance reviews
Free access to the company accounts on educational platforms (Udemy, Pluralsight)
Variety of training opportunities and knowledge sharing

Additional Information:

Job Posted:
December 06, 2025

Employment Type:

Fulltime

Work Type:

Remote work

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Middle/Senior JavaScript/Node.js Developer