Gen AI Python Engineer
About Us
We’re more than a software company. We’re a team of visionaries turning bold ideas into real-world impact.
Here, generative AI meets brilliant engineering to craft solutions that aren’t just smart — they’re transformative. From solving the impossible to scaling with style, we do it all with passion, integrity, and a spark of personality that sets us apart.
Why Us?
🧠 A culture of innovation — Bring your wildest ideas. We make them real.
🌍 Diverse, multidisciplinary teams — Tech, business, strategy — all in one squad.
🎓 Training on demand — Your growth = our growth.
💰 Competitive salary and benefits — We reward talent. Period.
🚀 Clear career progression — No glass ceilings here.
🎉 Get-togethers that don’t suck — From tech talks to team trips.
What are we looking for?
We’re on the hunt for a Python Engineer - Generative AI to join our elite product engineering team and lead the development of next-gen LLM-based agentic applications.
If you thrive in fast-paced environments, love working with LLMs like GPT, Claude or Mistral, and want to build AI-powered systems that actually go to production — then this is your moment.
What you’ll be doing
Designing and building agentic apps using LLMs, LangChain / LangGraph or similar frameworks
Implementing RAG pipelines with chunking, hybrid search, vector DBs, and prompt tuning
Developing and deploying LLM-based microservices into cloud-native architectures (AWS or Azure)
Writing clean, scalable Python code with high test coverage
Keeping up with the latest in LLM evolution, RLHF, DSPy and all the buzzwords (that actually matter)
Leading discussions on AI capabilities, risks and opportunities with technical and non-technical folks
Monitoring models and apps with Datadog, Databricks or similar observability tools
Collaborating with other teams in agile sprints, mentoring engineers, and shipping greatness
The skills we need
✔️ Solid Python skills (this is non-negotiable)
✔️ At least 6 months of hands-on GenAI product experience (LangChain, RAG, vector stores, etc.)
✔️ Experience with cloud platforms (AWS or Azure)
✔️ Experience building microservices, REST APIs, Docker/Kubernetes-based apps
✔️ Familiar with CI/CD pipelines (e.g., GitHub Actions)
✔️ Comfortable working with Git, Agile and international teams
✔️ Ability to break down complex ideas for non-tech stakeholders
✔️ Strong communication and leadership skills
🎯 Bonus points if you’ve worked with DSPy, fine-tuning, or contributed to open-source GenAI tools
Are you ready?
If you're ready to push the limits of what's possible with AI — and have fun while doing it — then BySix is where you belong. Bring your talent, curiosity and vision. We’ll bring the challenges, the impact, and the celebration of your success.
Note:
BySix is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees — regardless of who you are or where you come from. You belong here.
person_pinLocation
Lisbon (Hybrid)
historyExperience
Min. 7 years
architectureMain skills
