Senior Software Engineer

Complexio

Warszawa

On-site

PLN 167,400 - 279,000

Full time

14 days+

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Benefits offered by this job

Join a pioneering joint venture at the intersection of AI and industry transformation

Work with a diverse and collaborative team

Opportunity for professional growth

Job summary

A pioneering AI firm located in Warsaw is seeking a Mid-Senior Software Engineer to enhance business processes through advanced technologies. Candidates should have over 5 years of software development experience, strong Python skills, and familiarity with cloud platforms like Azure or AWS. The role offers opportunities for professional growth in a collaborative team environment.

Qualifications

5+ years of experience in software development.
Strong experience with Python.
Experience with JavaScript and relational databases.

Skills

Software development

Python

JavaScript

PostgreSQL

Redis

Azure

AWS

GCP

CI/CD

GitHub Actions

Event-driven systems

Distributed architectures

Docker

Kubernetes

English (min B2)

Tools

Docker

Kubernetes

Job description

Overview

Complexio’s Foundational AI platform automates business processes by ingesting and understanding complete enterprise data—both structured and unstructured. Through proprietary models, knowledge graphs, and orchestration layers, Complexio maps human-computer interactions and autonomously executes complex workflows at scale. Established as a joint venture between Hafnia and Símbolo—with partners including Marfin Management, C Transport Maritime, BW Epic Kosan, and Trans Sea Transport—Complexio is redefining enterprise productivity through context-aware, privacy-first automation. The project focuses on enhancing business processes through the use of artificial intelligence and advanced technologies. It enables intelligent data handling and supports automated decision-making. Built with modern, high-performance solutions, it ensures efficiency, security, and scalability.

Requirements

5+ years of experience in software development
Strong experience with Python.
Experience with vanilla JavaScript.
Experience with relational databases (PostgreSQL) and KV stores (Redis)
Experience in cloud platform (Azure / AWS / GCP)
Experience with CI/CD pipelines and tools like GitHub Actions
Strong understanding of event-driven systems and distributed architectures
Experience with containerization tools (Docker / Podman) and orchestration platform (Kubernetes)
English min B2

Nice to have

Experience with graph databases (Neo4j) and vector databases (Milvus)
Experience with NLP libraries and frameworks (spaCy / Transformers)
Proficiency in compiled languages (Rust, Go, Java, C#)
Experience with machine learning concepts and the ability to work with NLP datasets
Experience in building web applications using modern frameworks (React, Vue.js) or desktop applications (Electron, Tauri)

Benefits

Join a pioneering joint venture at the intersection of AI and industry transformation
Work with a diverse and collaborative team of experts from various disciplines
Opportunity for professional growth and continuous learning in a dynamic field

Job details