Software Engineer

Python

aleja Grunwaldzka 409, Gdańsk

DataMass

20 300 - 25 700PLN

Net per month - B2B

Full-time

B2B

Mid

Remote

Tech stack

English

B2

Python

master

API

advanced

PostgreSQL

regular

AI

regular

Job description

We are looking for a Python Engineer to join our small, remote-first team building AI-driven services for the Nordic customers. Your role will center on building and maintaining our core backend services and APIs, playing a key part in our data processing and LLM integrations. As a member of our team, you will drive technical decisions and solve complex challenges. We offer a flexible, laid-back culture, a B2B contract, and fully remote work with occasional travel to meet the team and clients.

Core Stack

• Python (FastAPI/Numpy/Pandas)

• PostgreSQL for data persistence

• Background asynchronous processing

API & Integration Expertise

• Expertise in designing, building, and consuming RESTful APIs.

• Experience with third-party API integrations and webhooks.

• Real-time data synchronization and robust background job processing.

• Strong error handling and logging for complex, asynchronous workflows.

AI/LLM Experience

• Familiarity with integrating LLM APIs (e.g., OpenAI, Anthropic).

• Interest in building or contributing to AI-powered business applications.

Database Skills

• Solid experience with PostgreSQL, including schema design and query optimization.

• Ability to model complex business logic in a relational database.

Testing

• Strong testing capabilities using frameworks like pytest.

• Ability to design and implement comprehensive unit, integration, and end-to-end test cases for backend services.

Published: 06.08.2025

Office location