# Senior AI Engineer at LGG Advisors

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Responsibilities: - Architect, develop and deploy complex LL

- **Company:** LGG Advisors (https://jobs.trythestack.co/companies/lgg-advisors)
- **Location:** Portugal
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 5–10 years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** Python, Large Language Models, Prompt Engineering, LangChain, LangGraph, LlamaIndex, Anthropic Claude Agent SDK, Pydantic, REST APIs, ML Engineering, Data Engineering, AWS, Azure, GCP, Agile Methodology, Fine-tuning
- **Posted by employer:** 2026-07-09
- **Added to The Stack:** 2026-07-10
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://lggadvisors.zohorecruit.com/jobs/Careers/552115000005728051/Senior-AI-Engineer (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/senior-ai-engineer-lgg-advisors

## About the role

Responsibilities:
- Architect, develop and deploy complex LLM-based agents and production AI applications for clients
- Lead design of system architecture, APIs, orchestration and monitoring for scalable AI solutions
- Implement prompt engineering, fine-tuning and data pipelines to improve model behaviour and reliability
- Develop and maintain Python codebases and integrate AI components with client systems
- Troubleshoot, optimise and document AI software; mentor junior engineers and contribute to best practices
- Collaborate with research, product and client teams across the project lifecycle

Requirements:
- Undergraduate degree in Computer Science, Engineering, Data Science or related field
- 4–6 years of experience in ML, data engineering or software engineering with strong Python skills
- 1+ year of practical production experience with LLM systems, agents or LLM-based products
- Hands-on experience with Anthropic Claude SDK, LangGraph, LlamaIndex, LangChain or similar frameworks
- Solid prompt engineering and fine-tuning experience; familiarity with Pydantic for validation/config
- Experience with cloud platforms (AWS/Azure/GCP), REST APIs and production deployment practices; excellent communication skills

## Responsibilities

Develop and deploy scalable AI applications and complex LLM-based agents for the financial services industry. Research new AI technologies and maintain AI software components using Python and REST APIs.

## Requirements

Requires a degree in Computer Science or related field with 3-5 years of ML/Data engineering experience and at least one year of production LLM experience. Proficiency in Python and AI frameworks like LangChain or LlamaIndex is essential.

## FAQ

- **Is this Senior AI Engineer role still open?** It was posted on 2026-07-09. Listings more than 30 days old may no longer be active, so check LGG Advisors's site before applying.
- **Does LGG Advisors offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on LGG Advisors's site.
- **Where is this role located?** The listing gives the location as Portugal. It is marked on-site.
- **What skills does this role ask for?** The listing names: Python, Large Language Models, Prompt Engineering, LangChain, LangGraph, LlamaIndex, Anthropic Claude Agent SDK, Pydantic, REST APIs, ML Engineering, Data Engineering, AWS, Azure, GCP, Agile Methodology, Fine-tuning.

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## Notes for agents

- Apply on the employer's page (https://lggadvisors.zohorecruit.com/jobs/Careers/552115000005728051/Senior-AI-Engineer). The Stack does not take applications.
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