AI Senior Engineer

Do you want to revolutionize digital transformation and impact the future of IT? Then this opportunity is for you!

Who are we?

ITSector is a software development company specialized in digital transformation for the financial sector. Our goal is to change people’s lives, revolutionizing the way they interact with the banking system.

Success is our keyword, and that is why we have been growing since 2005. We are team workers, we are visionaries and, most importantly, we are people that make it happen!

Our team has great software developers with the best attitude. Our employees are the most important partners and we want them to be happy and feel valued.  

ITSector has six Strategic Nearshore Centers: Aveiro, Braga, Bragança, Castelo Branco, Lisboa and our headquarters are in Porto.

Do you want to be part of this innovative team with a healthy work environment?

Let's take a look at the profile we are looking for:

• Ambitious people with a passion for this area;
• Degree in Computer Engineering, Artificial Intelligence or similar;
• Minimum 5 years of professional software engineering experience, including 3+ years designing and implementing AI-based solutions in production environments;
• Hands-on experience with state-of-the-art LLMs such as GPT, Gemini, Claude, Llama, Mistral, or equivalent models;
• Ability to design effective prompting and context-engineering strategies, structured outputs, and evaluation approaches to optimize LLM performance for production use;
• Experience building AI agent applications using frameworks such as LangChain, LangGraph, Google ADK, Microsoft Agent Framework, or comparable technologies;
• Understanding of agent workflows, multi-step reasoning, memory management, tool calling, and state orchestration;
• Strong Python development skills;
• Experience with additional programming languages like .NET (mandatory);
• Knowledge of asynchronous programming, API development, relational and NoSQL databases, and scalable service-oriented architectures;
• Experience designing and implementing AI pipelines for document ingestion, indexing, retrieval, and response generation;
• Understanding of AI quality evaluation, latency optimization, and cost monitoring;
• Experience working with Azure, Google Cloud Platform, or equivalent cloud environments;
• Knowledge of Docker, Kubernetes, Infrastructure as Code (Terraform), and CI/CD practices;
• Familiarity with cloud security, identity management (IAM), and deployment automation;
• Familiarity with AI-powered software development tools, including GitHub Copilot and AI-assisted testing, code review, and development workflows;
• Experience implementing secure secret management and applying data governance and privacy best practices, including GDPR compliance;
• Written and verbal communication skills (Portuguese and English);
• Passion for learning and staying up to date with the rapidly evolving AI ecosystem; 
• Strong analytical and problem-solving skills;
• Self-driven mindset with a focus on continuous improvement;
• Ability to work effectively in cross-functional and agile teams;
• Sense of responsibility, commitment and integrity;
• Focus on innovation, dynamism, autonomy and teamwork.

Main responsibilities:

• Design, develop, and maintain AI-powered applications and intelligent agents;
• Build integrations between AI models and enterprise systems through APIs and custom tools;
• Develop scalable pipelines for knowledge retrieval and information processing;
• Ensure AI solutions are secure, reliable, scalable, and production ready;
• Promote engineering best practices across LLMOps, MLOps, observability, testing, and continuous delivery;
• Evaluate emerging AI technologies and contribute to the evolution of the organization's AI capabilities. 

What can you expect?

• Hybrid working model;
• National and international projects;
• Health Insurance Benefit for all employees;
• A fair system of competitive rewards upon knowledge and experience;
• Certification, technical and behavioral training to become the best version of yourself;
• Team Building and Happy Hours;
• Committed and successful teams;
• Opportunity to work in a challenging environment with dynamic teams and innovative projects;
• Happiness, well-being at work and physical and emotional health, with initiatives that promote a work-life balance culture;
• Benefit scheme along with partners.

What are you waiting for?

Join the ITSector family and apply through our website https://www.itsector.pt/en/careers.