Backend Engineer (LLM/AI focused)

APPLICATION DEADLINE: September 3rd

We will first start processing the applications once the deadline is over.

Who is Bitrefill?

Bitrefill is the global leader in crypto commerce since 2014. We are the one stop shop where people go to buy real world things with their crypto. We unlock the power of internet money for the global spender and strive to enable financial freedom for everyone. We have four main product lines: Bitrefill Card, Gift Cards, eSIMs, and our mobile app. 

Your Mission

As a Backend Engineer at Bitrefill, your mission is to drive the development of our new AI automation functions. In this role, you will leverage your system engineering skills to manage AI agents. You will design, develop, and monitor pipelines to evaluate AI agent performance by tracking conversations and outcomes, addressing the challenges of nondeterministic AI outputs. As a key contributor to this new initiative, you will build the foundation for our AI operations from the ground up, collaborating across departments to implement backend solutions and ensure seamless integration of AI driven automation processes.

Our Tech Stack

• Node.js/TypeScript
• Express.js
• MongoDB, MySQL
• Amazon AWS, Kubernetes

Your Responsibilities 

• Manage AI agents and ensure system availability for internal teams
• Design and monitor pipelines to evaluate AI agent performance, tracking conversations and outcomes to measure and improve reliability
• Design and implement evaluation pipelines to assess AI agent performance, report on results, and drive iterative improvements
• Track the performance of AI tools and pipelines, identifying opportunities for enhancement and implementing solutions to boost efficiency
• Work closely with cross functional teams to understand team needs and turn them into technical solutions
• Communicate technical concepts clearly to nontechnical stakeholders
• Leverage your understanding of company workflows to streamline processes and enhance operational efficiency

Who you are

• Mid/Sr Level (BE/OPS)
• Experience with our tech stack (Python is a plus but not required).
• Familiarity with Docker, machine configuration, and system engineering.
• Exposure to AI/LLM technologies, with an understanding of their practical applications.
• Experience with AI/ML frameworks, agent-based systems, or evaluation pipelines is a plus.
• Enthusiasm for staying updated on AI advancements and industry trends
• Excellent interpersonal skills, able to engage with all teams to understand business processes, and turn road blocks into technical solutions.
• Thrives in a fast paced, remote environment while taking initiative to drive projects forward.

You Bring With You

• Located in Europe/Americas time zones (GMT-1 to GMT+3)
• Excellent communication and interpersonal skills, with fluency in written and spoken English
• 4+ years of backend experience, mainly within our tech stack (python is a plus)
• Proof of work with AI via a portfolio or contributions to open source libraries using large language models (LLMs) or AI agent frameworks
• Familiar with cloud platforms (AWS, GCP, or Azure) for deploying and managing AI systems.
• Prior experience in a fast paced startup environment

Our Hiring Process is here

Why Bitrefill

Apart from the perks of working with us, you will become part of a passionate and talented team with high ambitions for a world where crypto is money for everyday use. You will find a challenging workplace and a great education regarding everything crypto.

We are a remote-first company, since before it was cool. We believe in the freedom to work remotely and flexibly. You will work with an amazing group of people who like to try and do new things. Everyone together tries to build different things, and we try to make a difference to everyone. To all of us, the team members, but above all, to our customers. You’re given real ownership over your work and the trust to get things done. You just need to roll up your sleeves and start. There’s always someone around to bounce ideas off and collaborate with, as well as regular on-sites, meetups, and conferences to keep things connected beyond the screen.

If you are wondering if this is for you, you can always check out Who we are and How we work.

Listed in: Crypto Jobs, Full Time Web3 Jobs, Node.js Crypto Jobs, AI Crypto Jobs, Python Crypto Jobs, Remote Crypto Jobs, Web3 Crypto Jobs.