Senior Fullstack AI Engineer

Role Description

We're looking for a SENIOR FULLSTACK AI ENGINEER to join our team! As a Senior Fullstack AI Applied Engineer, you will combine strong software engineering fundamentals with modern AI-assisted development practices to deliver high-quality software faster and more effectively.

• Leverage AI coding assistants, agentic development workflows, and AI-powered engineering tools throughout the Software Development Life Cycle.
• Work alongside product, engineering, and design teams to build scalable solutions while continuously improving development practices through the effective use of AI.

AI-Assisted Software Development

• Use AI coding assistants such as OpenAI Codex, Claude Code, Cursor, GitHub Copilot, or equivalent tools as part of daily development workflows.
• Apply AI-assisted approaches to software design, implementation, testing, debugging, refactoring, and documentation.
• Develop and maintain reusable prompts, workflows, skills, and agent instructions that improve engineering effectiveness and consistency.
• Use agentic development techniques to accelerate feature delivery while maintaining engineering quality standards.
• Contribute to the evolution of AI-enabled engineering practices across teams and projects.

Full Stack Development

• Design, build, and maintain modern web applications across frontend and backend systems.
• Develop scalable APIs, services, and user interfaces using modern engineering practices.
• Contribute to architectural decisions and system design discussions.
• Ensure software solutions meet performance, security, reliability, and maintainability requirements.
• Collaborate with multidisciplinary teams to deliver high-quality customer experiences.

Quality, Trust & Engineering Excellence

• Review and validate AI-generated code to ensure production readiness.
• Implement automated testing and quality assurance practices throughout the SDLC.
• Participate in code reviews and contribute to engineering standards and best practices.
• Design and implement mechanisms that increase trust in AI-generated outputs, including automated validation, testing strategies, specification conformance checks, evaluation frameworks, and feedback loops.
• Establish guardrails and verification workflows that ensure agent-generated code and artifacts meet functional, security, performance, and maintainability requirements.
• Evaluate the effectiveness, reliability, and quality of AI-assisted development workflows and continuously improve them.
• Contribute to the development of reliable engineering practices for agentic software development.

Collaboration

• Work closely with Product Owners, Designers, QA Engineers, and other Software Engineers.
• Support the adoption of AI-enabled engineering practices across teams.
• Share knowledge, workflows, and best practices related to AI-assisted software development.
• Mentor other engineers on effective and responsible use of AI throughout the software development lifecycle.

Qualifications

• At least 5 years of professional experience relevant for the role.
• Relevant experience in React and Node.js.
• Strong experience delivering software across the Software Development Life Cycle.
• Experience building production-grade software applications.
• Experience working within Agile product development teams.
• Strong communication and technical collaboration skills.

Requirements

• Demonstrated experience using AI coding assistants in professional software development.
• Experience using AI for code generation, refactoring, debugging, testing, documentation, and software design.
• Familiarity with agentic development workflows and AI-powered engineering tools.
• Experience creating and maintaining prompts, workflows, skills, agent instructions, or similar reusable AI assets.
• Ability to critically evaluate and validate AI-generated outputs.
• Experience designing workflows that improve confidence and trust in AI-generated outputs.
• Understanding of validation techniques for AI-assisted development, including testing, specification-based verification, evaluation frameworks, and human-in-the-loop review processes.
• Experience working with AI agents to execute multi-step development activities.

Benefits

• Health Insurance, because health comes first.
• Flexible working hours.
• Open holidays, take the time you need for yourself.
• Profit distribution for everyone.
• Mindera Annual Trip, Sports, and sharing groups to connect and have fun!
• Training & conferences, create your own training plan.
• Child Care vouchers.
• Choose Laptop & Peripherals that best suit your needs.
• Hotspot with unlimited usage (PT), for work or Netflix.
• Amazing offices in Porto, Aveiro, and Coimbra if you want to physically connect with minders. Remote is also an option.
• A wide range of snacks to keep you fed and healthy at the offices.
• Partnerships with local businesses.
• Work with a bunch of great people in a politics-free environment.
• Encouragement to take risks, make decisions, and enhance communication.
• Freedom and Responsibility go hand in hand, valuing commitment, feedback, and empathy.