# AI Software Engineer (Research Assistant) (Ref. LAB/26/18) at IRB Barcelona

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> Responsibilities: - Design, implement and maintain LLM-based

- **Company:** IRB Barcelona (https://jobs.trythestack.co/companies/irb-barcelona)
- **Location:** Spain
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 2–5 years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** Python, LLMs, Agentic systems, Software engineering, RAG, Prompt engineering, Git, GitHub, Machine learning, Deep learning, Bioinformatics, Cancer genomics, Nextflow, Docker, Singularity, Cloud computing
- **Posted by employer:** 2026-11-05
- **Added to The Stack:** 2026-11-06
- **Listed until:** 2027-01-04
- **Status:** Active
- **Apply:** https://recruitment.irbbarcelona.org/jobs/8671061-ai-software-engineer-research-assistant-ref-lab-26-18 (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/ai-software-engineer-research-assistant-ref-lab2618-irb-barcelona

## About the role

Responsibilities:
- Design, implement and maintain LLM-based and agentic applications for lab projects (scientific collaboration agent, Cancer Genome Interpreter chatbot).
- Integrate AI components with lab databases, knowledge sources and existing bioinformatics tools.
- Improve quality and reliability of LLM systems: prompt engineering, context management, retrieval-augmented generation (RAG), tool use and evaluation.
- Apply software engineering best practices: version control, automated testing, code review, CI and documentation.
- Support research teams with technical development, attend project meetings and contribute to technical reports.
- Keep abreast of AI advances and propose practical improvements for lab applications.

Requirements:
- Bachelor’s degree in Computer Science, Engineering, Bioinformatics, Computational Science, Physics, Mathematics or related field.
- Minimum 1 year of professional software development experience.
- Hands-on experience with LLMs and agentic systems (APIs, prompt/context engineering, RAG, tool-enabled agents).
- Strong Python skills and familiarity with collaborative development using Git/GitHub.
- Comfortable with containerization and cloud deployment concepts (Docker, Singularity, cloud services preferred).
- Excellent English (written and spoken) and strong communication/collaboration skills.
- Proactive, curious about biology and willing to learn cancer genomics; prior bioinformatics experience is a plus.

## Responsibilities

Design, develop, and maintain LLM-based and agentic applications to support biomedical research projects. Integrate AI components with laboratory tools and databases while applying software engineering best practices.

## Requirements

Requires a bachelor's degree in a technical or scientific field and at least one year of software development experience. Candidates must have hands-on experience with LLMs, agentic systems, and strong Python programming skills.

## FAQ

- **Is this AI Software Engineer (Research Assistant) (Ref. LAB/26/18) role still open?** It was posted on 2026-11-05 and is listed as active on The Stack. Confirm on IRB Barcelona's application page before applying.
- **Does IRB Barcelona offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on IRB Barcelona's site.
- **Where is this role located?** The listing gives the location as Spain. It is marked on-site.
- **What skills does this role ask for?** The listing names: Python, LLMs, Agentic systems, Software engineering, RAG, Prompt engineering, Git, GitHub, Machine learning, Deep learning, Bioinformatics, Cancer genomics, Nextflow, Docker, Singularity, Cloud computing.

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