<p data-start="106" data-end="394"><strong>Overview:</strong></p><p data-start="106" data-end="394">This role focuses on building and evolving the backend and AI capabilities of <em data-start="184" data-end="195">Secure…
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Full-time
Permanent Job Contract, Tech Equipment, SIM Card, Personal Smartphone, Health Insurance, Life Insurance
Posted 62d ago
~40 hrs/week
Responsibilities
Design and develop backend services and AI capabilities for the SecureGPT platform, focusing on LLM integrations and RAG workflows. Take full ownership of features from initial design and planning through to testing and delivery.
Requirements
Requires 3 to 5 years of software engineering experience with strong proficiency in Node.js, JavaScript, and TypeScript. Candidates must have practical experience implementing AI-based features, LLM APIs, and a solid understanding of software engineering best practices.
Full job description
Overview:
This role focuses on building and evolving the backend and AI capabilities of SecureGPT, a Generative AI platform used internally within the group. The product includes a ChatGPT-like web interface and a Model Hub that exposes APIs and models for teams building AI-powered applications.
You will work mainly on backend engineering, AI integrations, RAG, Agentic AI capabilities, document processing, testing strategy, and end-to-end delivery of new features. This is not a traditional developer role: we are looking for a Software Engineer who can understand business and technical problems, design solutions, plan implementation, and take full ownership from idea to delivery.
The team is supported by Tech Leads and Managers, but you are expected to work with a high level of autonomy, critical thinking, and engineering maturity.
What will you do?
Design and develop new features for the SecureGPT platform
Build backend services and APIs using Node.js, JavaScript and TypeScript
Integrate LLMs into production applications and internal tools
Implement RAG workflows, knowledge base processing, and document management capabilities
Build and integrate Agentic AI features into the platform
Explore and implement Web Search capabilities in AI workflows
Contribute to the technical design and planning of complex solutions
Define and execute testing strategies, including End-to-End testing
Work on DevOps practices, deployment readiness, maintainability, and reliability
Collaborate with distributed teams across France, Spain and Portugal
Take ownership of features from design through development, testing and delivery
Contribute with critical thinking, innovation mindset, and technical recommendations
What are we looking for?
3 to 5 years of experience as a Software Engineer
Strong backend development experience with Node.js
Solid experience with JavaScript and TypeScript
Proven ability to design, plan and deliver technical solutions end-to-end
Practical experience implementing AI-based features in real applications
Hands-on experience with LLM APIs
Knowledge of RAG frameworks and Retrieval-Augmented Generation patterns
Knowledge of Agentic AI frameworks and agent-based workflows
Experience with Prompt Engineering and LLM-based automation
Strong understanding of software engineering best practices
Experience with End-to-End testing
Good knowledge of GitHub and collaborative development workflows
DevOps awareness and ability to work with modern delivery practices
Minimum B1 English level for an international environment
Critical thinking
Problem-solving ability
Curiosity for new technologies
Ownership and accountability
Ability to collaborate with distributed teams
Innovation mindset and willingness to explore new approaches
Nice to have:
Experience with React and Next.js
Experience building POCs or simple front-end interfaces when needed
Experience with Microsoft Azure
Knowledge of Azure AI Services
Experience with Azure App Services
Experience with Azure Databases
Good understanding of the current AI ecosystem and major model providers
What can you expect from us?
A permanent job contract for a long term project;
Tech equipment + SIM Card + personal smartphone;
Health and Life Insurance;
Social events and team buildings;
The commitment of letting you grow with us, and be rewarded accordingly;
A dynamic and young team that will be always there to support you;
Training in the latest technologies;
Coffee, fruits, snacks and a warm welcoming when you pass by the office.
Related keywords
Node.jsJavaScriptTypeScriptGenerative AILLMRAGAgentic AIPrompt EngineeringBackendAPIAzureAzure AI ServicesAzure App ServicesAzure DatabasesDevOpsGitHub
Caixa Mágica Software is a Portuguese SME and a recognized leader in the open source ecosystem. Founded in 2000 as a spin-off from a university research project, we’ve grown into a trusted technology partner for both public institutions and private companies across Europe.
Our journey began with the development of the Linux Caixa Mágica distribution, and over the years, we’ve expanded into embedded systems, cloud platforms, mobile and web applications and digital identity solutions. We're also the official LPI certification provider in Portugal and a consistent contributor to EU-funded research and innovation projects.
With a strong foundation in open source values, we believe in building sustainable, secure and future-ready technology. Always through collaboration, transparency and innovation.
How many Software jobs are open in Lisbon, Portugal right now?
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