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AI R&D Software Engineer

On-site in Maia·Full-time·Added 3 days ago (last checked 26 Oct)

Sonae MC

656 open roles

Our summary

Work mode
On-site, Maia
Contract
Full-time
Experience
3+ years

Skills

This job advert was originally written in Portuguese.

Requirements

What we're looking for

  • Higher Education in Computer Engineering, Data Science, Artificial Intelligence, or similar areas
  • 3 or more years of experience in software development, with a history of production systems
  • Solid experience in Python and/or TypeScript/Node.js, adapting to different stacks
  • Knowledge of how LLMs and agent architectures work (e.g., tool use, RAG, multi-agent orchestration)
  • Experience in model evaluation techniques (e.g., evals, LLM-as-a-judge, test datasets, quality and performance metrics)
  • Knowledge of local implementations of AI models, using open-source tools (Ollama, llama.cpp, vLLM or similar)
  • Hands-on experience with coding agents such as Claude Code, GitHub Copilot, Codex, or equivalent tools
  • Experimental rigor and critical thinking: formulating hypotheses, measuring, and drawing conclusions from data
  • Knowledge of Linux, bash scripts, and SSH
  • Ability to communicate results to technical and non-technical profiles, with a team spirit
  • A permanent growth mindset and active monitoring of emerging trends in AI and the models and agents ecosystem

Nice to have

  • We value experience in model fine-tuning, performance/load testing, and observability tools

The role

We appreciate your interest in this opportunity! Your application will only be considered complete after completing a digital assessment. At the end of the application, and if you meet the necessary criteria for the role, you will receive a link to access it in your registration email. This step is mandatory, as our recruitment process is based on skills assessment.

We are a company for everyone and by everyone. At MC, we put people at the center: customers, employees, and the community. We create value together, innovate at every step, and lead closely, recognizing each individual's qualities. Different stories and ideas unite us in the same purpose: to grow and reach the best version of ourselves. Because everything we are, we achieve together.

MC Digital is the Information Technology area of MC. We are firmly convinced that technology can revolutionize the retail sector, bringing more convenience and exceeding customer expectations. In this context, we are focused on boosting the use of Artificial Intelligence in our technological products and systems, contributing to accelerating MC's digital transformation.

Want to get to know what we do better? Visit Caixa Central, the MC Digital blog and podcast: https://caixacentral.mcdigital.tech/.

For all this, join us!

We are looking for an AI R&D Software Engineer for our MC Digital Labs & AI Transformation team and we believe we will be #betterwithyou!

We are counting on you to...

What you'll do

  • Conduct applied AI R&D across the team's various work fronts, such as SDLC.AI (AI First Software Development) and AGENTS.AI (Technological ecosystem for agent development), transforming hypotheses into experiences with measurable results.
  • Design and execute evaluation techniques (evals) for models and agents, defining metrics, datasets, and success criteria aligned with our real-world tasks.
  • Benchmark commercial and open-weight models against MC's reality, comparing quality, performance, latency, and cost in concrete use cases, both in software development and business processes.
  • Follow community releases and new models, instantiating and testing them in our context.
  • Prototype and test agentic architectures, frameworks, SDKs, and low-code/no-code platforms, evaluating their impact and scaling potential.
  • Explore model adaptation techniques (e.g., prompting, RAG, fine-tuning) to improve results in specific tasks.
  • Define and evolve the AI laboratory tools and infrastructure that support continuous experimentation.
  • Share findings and recommendations with technical and business teams, supporting decisions on what to adopt and scale.

Therefore, bring with you...

What do we have for you?

Discover here all our benefits in the areas of Health and Well-being, Compensation and Benefits, Family and Parenthood, Career Development, and Flexibility.

MC Sonae D&I commitment

We work to create a work environment based on the richness of profiles and focused on uniqueness, ensuring that everyone feels respected, valued for their skills, and has confidence in the organization.

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