AI Engineer

Full Time

hybrid

Backend

Vilnius / Kaunas

At Saily, we’re removing the hassle from getting secure data plans while traveling.

No roaming charges, no plastic SIM cards. Just fast, secure mobile data in 200+ countries. Join the team behind Lonely Planet’s #1 eSIM—built for explorers, powered by NordVPN.

Your impact? Helping people stay securely connected, wherever they go.

Main Responsibilities

Architect scalable, maintainable backend systems that support Agent integration.
Create innovations in a company that is betting early on AI.
Collaborate with product teams to define and refine new prototypes and functionalities.
Stay updated with the latest developments in LLM (Large Language Models) and AI technologies, integrating them into our products as necessary.
Prototype new features and products using Generative AI.
Make prototypes that quickly prove the feasibility of solutions, using commercially available APIs and/or local Generative AI models.
Optimize prototypical solutions by getting them production-ready through prompt engineering, fine-tuning, etc.

Core Requirements

A proactive individual with a strong openness to new ideas and innovations
A "can-do" attitude, with the ability to present well-reasoned proposals and make informed decisions based on solid arguments.
Proven expertise in implementing Generative AI techniques, including prompt engineering, model fine-tuning, and embeddings for commercial use.
Experience with commercially available APIs (e.g., Google, Azure, OpenAI) for text/image generation, embeddings, function calling, fine-tuning, etc., and proficiency in fine-tuning prompts for high-quality outcomes.
Proficiency in deploying and optimizing open-source Generative AI models (e.g., LLaMA, Mistral), along with familiarity with related toolchains (e.g., Ollam, LangChain).
High curiosity to stay up to date with the state of the art of the fast-moving AI field.
Strong skills in Python programming.
At least 1-2 years of experience in LLM-related projects.
Capable of developing robust RESTful APIs and containerizing applications with Docker.
Knowledgeable in Linux and DevOps methodologies, including the use of Git, Jira, and Docker.

Salary Range

Gross salary range is 3400 - 6700 EUR/month

Perks we offer

Our global mission fuels our drive. But when you need that extra push - here’s a list of things to look forward to.

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Backend

Vilnius / Kaunas

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