Backend Software Engineer

A World-Changing Company

At AICONIC we believe that radical transparency and algorithmic decision making is the future. We’re passionate about building software that solves problems. We partner with the most important companies and institutions in the world to transform how they use data and technology. If you're seeking a career where you can truly make a difference in the lives of others, a career where you can work at the absolute forefront of technology with the top minds in the field, you'll find it here. We work with great clients like Pfizer, Johnson & Johnson, UEFA and many others.

Technologies We Use

• Backend languages, including Python
• Distributed systems technologies such as Elasticsearch and Spark, FastAPI, etc.
• Docker and Kubernetes for containerization and orchestration
• Industry-standard build tooling, including GitHub

The Role

• Architecting, developing, and maintaining high-performance, scalable backend services that underpin our our operational data and AI systems
• Maintaining high coding standards through the development of guidelines, active participation in code reviews, and fostering a culture of continuous improvement and knowledge sharing among your team
• Building robust APIs for use by front-end developers and interfacing external systems, and collaborating with front-end developers to integrate user-facing elements with server-side logic
• Designing efficient data structures and algorithms to manage large-scale and high throughput data
• Optimizing applications for speed and scalability through performance analysis
• Actively improve user workflows by collaborating with cross-functional teams, ensuring seamless experiences across product boundaries and a cohesive user experience

Our Proposal

• Work from anywhere (home, office, etc.)
• From 10.000 PLN/month up to 16.000 PLN/month + VAT on a B2B contract
• 26 days of paid holidays + an equivalent of public holidays in Poland
• Additional benefits tailored to your needs (We do not follow a one-size fits all approach)
• Startup atmosphere, less documentation and rules, we are open to experimenting and learning
• Never alone in a project - always together 2 people at least
• Very good place for people who are passionate about data and IT

What is Required

• Python - at least 2 years of production experience
• Ability to develop APIs in FastAPI.
• Use of best practices: testing, code formatters, typing, Pydantic
• Practical knowledge of Docker
• Basic understanding of the typical ML pipeline
• Fluent written and verbal communication in English

Nice to have

• Experience in production use of LLM models
• Experience with Langchain, Langgraph, RAG
• Experience with Langsmith or other LLM-based system performance monitoring tool, independently creating evaluation pipelines. Ability to train other team members
• Experience in building RAG-based systems, understanding of vector database applications
• Experience in all phases of software development: from prototyping solutions in the R&D phase to creating a production solution
• Basic knowledge of Streamlit (or other frontend library that allows rapid prototyping)
• Knowledge of CI/CD processes
• Experience with cloud technologies, especially with services that allow you to host containers (in particular Amazon ECS, Azure Container Instances, Google Cloud)
• Experience with Infrastructure as a Code (Terraform)