Expert LLM Engineer (AI Security)
200–240 PLN/hour + VAT (B2B) | 24 500–29 400 PLN gross (UoP)
About Us
At Framna, we partner with ambitious brands to create digital products that make a meaningful impact.
We work across the full product journey, from strategy and UX to engineering and long-term growth, combining technical expertise with a strong product mindset. Together with our partners, we build solutions that users rely on every day.
Our culture is built on trust, ownership, and fearless collaboration. We challenge ideas, support each other, and keep learning-openly sharing feedback, staying flexible in how we work, and approaching each other with empathy. Because the best products are created by teams that move forward together.
About the Role
You will work on AI-powered security solutions for a next-generation, passwordless authentication platform used by millions worldwide, leveraging advanced biometrics to protect digital identities.
Using Python and LLMs, you will develop and evaluate solutions—from data preparation and fine-tuning to prompting, context management, and integration with APIs and product tools. You will build evaluation datasets and regression tests to improve quality, reliability, performance, and cost efficiency.
Through controlled adversarial testing, you will explore how LLMs and AI agents can be manipulated or used to bypass product safeguards. You will investigate threats across Android and iOS environments, analyse agent behaviour in customer applications, and translate findings into product improvements.
We value occasional in-person meetings at our studio to support collaboration and knowledge sharing.
Preferred Skills & Qualifications
At least 7 years of experience in software engineering, machine learning engineering, or security engineering, including at least 2 years of hands-on experience developing and maintaining LLM-based solutions in production
Good knowledge of Python and the ability to build maintainable, testable software
Experience building backend components and integrating models with applications, APIs, and data sources
Understanding of model evaluation and validation principles, including data quality and data leakage between datasets
Experience with prompt engineering and managing the context provided to models
Experience building AI agents, including tool calling and orchestrating multi-step workflows
Experience designing evaluation datasets and regression tests to assess the quality, reliability, and safety of LLM-based solutions
Practical understanding of security risks related to LLMs and AI agents, with experience testing their resistance to manipulation and attempts to bypass safeguards
Ability to analyse traffic, telemetry, or behavioural patterns to investigate automated activity and identify potentially unsafe or unauthorised actions
Nice to Have
Experience fine-tuning language models, including data preparation, selecting tuning approaches, and evaluating results
Experience developing fraud or abuse detection mechanisms based on traffic, telemetry, or behavioural patterns
Experience investigating mobile application security in Android or iOS environments
Experience in security research, red teaming, or penetration testing beyond LLM-based systems
Familiarity with tools for LLM security testing, evaluation, and observability, such as garak, promptfoo, or Langfuse
Familiarity with RAG, embeddings, and vector databases
Knowledge of LoRA/QLoRA and libraries such as PEFT or TRL
Familiarity with Docker, CI/CD, and cloud services used to deploy AI solutions
What you will find at Framna
Real ownership and influence on the products you build
A focus on business value over technical perfection
Continuous feedback and open, honest communication
Regular 1:1s and a mentoring program to support your growth
Internal workshops and knowledge sharing across teams
Flexible working hours (you can start between 7:00–10:00)
Hybrid model with regular in-studio collaboration (Gdańsk, Wrzeszcz)
High-quality equipment, including MacBook and testing devices
Individual training budget
English classes in small groups
Plus the essentials:
Private medical care (Compensa) and MultiSport
Team gatherings and shared moments beyond work
If you are motivated by ownership, collaboration, and continuous improvement, and you enjoy solving real problems with a team you can rely on—you will feel at home at Framna.
Let’s build impactful products together.
- Department
- AI
- Role
- AI Engineer
- Location
- Gdańsk
- Remote status
- Hybrid
- Employment type
- Full-time
About Framna
Framna is a diverse and global team of builders, thinkers, and creators. We are united by one mission: to craft digital products that make everyday life better for millions of people worldwide. Today, over 600 of us collaborate across ten studios in Denmark, the Netherlands, Poland, Sweden, Switzerland, and the US.
Our name, rooted in Old Norse, means “to bring forward.” And that is exactly what we do. We partner with industry leaders (and those about to be) to create digital products that define markets, reshape industries, and drive meaningful growth. We call it Win by product.