Fullstack Developer – Node.js, Next.js, React

HumanIT Digital Consulting

. Provide application development services for the Secure GPT service .

Posted 9/21/2026full-timeLisbon • PortugalMid-LevelSenior💰 €1,500 - €1,900 per monthWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in back-end web application development, particularly within Azure environments, with a strong focus on API design, implementation, and automation. Proficient in collaborating within international teams while ensuring compliance with security and regulatory standards.

Highest-signal resume keywords

Back-End Web Application DevelopmentAPI Design and ImplementationAzure DevOps and CI/CD PipelinesJavaScript/TypeScript ProficiencyPrompt Engineering

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Back-End DevelopmentAPI DesignUnit TestingEnd-to-End TestingAutomation ScriptingInfrastructure as Code (IaC)Document UnderstandingWeb UsageAgentic CapabilitiesMonitoring and Observability

Soft Skills

Collaborative MindsetProactive Problem-SolverClear CommunicationAdaptabilityAutonomous Working Style

Tools & Technologies

Azure App ServicesCosmos DBApplication InsightsAzure DevOpsTerraformBicepOpenAIAnthropicGeminiAzure AI

Certifications & Qualifications

Azure CertificationAPI Certification

Industry Keywords

Regulated IndustriesData SecurityComplianceKPI TrackingProcess Improvement

Tech Stack

Tools & technologies

AzureJavaScriptNext.jsNode.jsReactTerraformTypeScript

About the role

Key responsibilities & impact

Provide application development services for the Secure GPT service
Develop primarily back-end capabilities, with limited front-end contributions
Design, develop, and enhance features including document understanding, translation, agentic capabilities, web usage, APIs, and automation
Execute end-to-end development from study and analysis through technical design, implementation, documentation, testing, and monitoring
Define and track KPIs to support data-informed decisions
Collaborate within an international team with regular alignment with the Tech Lead and Product Owner
Implement solutions compliant with security, regulatory, and internal standards
Identify opportunities for process and automation improvements

Requirements

What you’ll need

Minimum 5 years of experience in web application development, ideally within Azure environments
Strong expertise in web application development, focused on back-end technologies with limited front-end activity
Proficiency in JavaScript/TypeScript: Node.js (back-end), Next.js/React (front-end)
Expertise across the full testing lifecycle, including unit and end-to-end (E2E) tests, owning the full testing cycle
Expertise in API design, implementation, and operation
Hands-on expertise with Azure, including App Services, Cosmos DB, Application Insights, and Monitoring
Expertise with DevOps practices and tools, including Azure DevOps and CI/CD pipelines
Knowledge of Infrastructure as Code (IaC) fundamentals and automation scripting
Expertise in prompt engineering
Expertise with AI APIs and/or frameworks (OpenAI, Anthropic, Gemini, Azure AI), including RAG and agentic/agent-based capabilities
Demonstrated ability to own features end-to-end
Autonomous, proactive working style
Collaborative mindset in cross-functional, international teams
Adaptable and comfortable with shifting priorities
Clear communicator in English (B2 Upper Intermediate or above), written and verbal
Proactive, solution-oriented problem-solver
Terraform and/or Bicep for infrastructure deployment preferred
Observability and monitoring tools preferred
Background in regulated industries preferred
Azure and/or API certification preferred
Knowledge of data security and compliance preferred
Availability for occasional travel to France, Spain, or Portugal, depending on service needs

Benefits

Comp & perks

15th month salary
Health insurance covering your family
Birthday off
Mobility program for digital nomads
Real work-life balance