Senior Python Developer at ARCANYS

ARCANYS; Warszawa; On-site; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Top compensation based on expertise

Long-term work from home

Standard 5-day work week

Flexible working schedule

Flat management style

Work with latest technologies

Free nutritionist consultations

Mental Health Therapists (online)

Job summary

Arcanys is seeking a Senior Python Developer in Warsaw to lead the technical direction of our system and collaborate with the CTO. You will design complex data and visualization pipelines and guide a small cross-functional team in delivering end-to-end solutions.

You will drive AI-assisted development, orchestrate multi-agent workflows, and proactively improve the platform. Strong Python, system design, and English communication are essential.

Qualifications

• 5+ years Python development with independent, lead capability.
• Experience designing end-to-end pipelines and data workflows.
• Fluent in AI-assisted development and adoption across teams.
• Strong ability to read, review, optimize, and refactor large codebases.
• Proficient with PostgreSQL, Git, and REST/RPC services.
• Familiar with Django 4.2+ (nice to have).
• Excellent written and spoken English; collaborative, owning mindset.

Responsibilities

• Own the system's technical direction and architecture with CTO.
• Design and build complex data pipelines and 3D/visualization workstreams.
• Provide technical direction to a small cross-functional team.
• Drive AI-assisted development workflow and multi-agent orchestration.
• Proactively surface improvements and own the codebase.
• Produce clean, well-tested code; review, debug, and document.

Skills

Python

System design

Data pipelines

AI-assisted development

RESTful services

Postgres

Git

Django

English

Tools

NumPy

SciPy

PyTorch

Open3D

Matplotlib

Job description

Warszawa, MZ, PL. This Full time on site position offers great opportunities for career growth.

About Arcanys Arcanys launched in 2010 to help entrepreneurs and innovators from Australia, Europe and other parts of the globe accelerate their software development with dedicated remote engineers from the Philippines.

Why work with us?

There’s a unique spirit to Arcanys—manifested in our amazing talents, passion for technology, and a strong focus on everyone’s career and personal development. As a company rooted in people, we make a point to offer exciting work opportunities and foster a culture that everyone can meaningfully contribute to. Join us as a Senior Python Developer

In this role you’ll get to:

• Own the technical direction of the system, define and evolve the architecture and make the calls on how it's built in collaboration with the CTO.
• Design and build complex data and processing pipelines and workflows, particularly around 3D / visualization data.
• Provide technical direction to a small cross-functional team.
• Drive an AI-assisted development workflow, including multi-agent orchestration with specialized agents.
• Treat the system as your own: proactively surface and drive improvements rather than waiting for assigned tasks.
• Produce clean, well-tested code; review, debug, and document.

What you’ll need to succeed:

• At least 5+ years Python, with a track record of operating independently and leading technically.
• Proven experience designing systems and building non-trivial pipelines and workflows end to end.
• Fluent in AI-assisted development. You already build with these tools daily, are genuinely curious about pushing them further and about spearheading their adoption across the team.
• Comfortable reading, reviewing, optimizing, and refactoring large codebases against sound engineering practices.
• Solid with Postgres, Git, and RESTful / RPC services.
• Familiarity with Django (4.2+) is a plus.
• Strong written and spoken English, a collaborative mindset, and high ownership.

Nice to have:

• Cloud experience (AWS, Azure, or GCP).
• DevOps: containers, CI/CD, automated deployments, and monitoring/alerting on database and web-server performance.
• Foundational linear algebra, matrix operations and transformations, plus working comfort with statistics and probability.
• Python numerical / 3D libraries such as NumPy, SciPy, Matplotlib, Open3D, and PyTorch.

The Perks:

• Top compensation based on expertise – we are only looking for top talent and pay accordingly.
• Long-term work from home - we let you work from the comfort of your home
• Standard 5-day work week from Monday to Friday.
• Flexible working schedule. You can choose your working hours (within reason).
• Flat management style and open-door policy - no micromanagement and your voice are being heard!
• Work with the latest technologies - you can hone your skills and work with Australian and European clients.
• Free consultations with Arcanys registered nutritionist-dietitians.
• Free access to Mental Health Therapists (online)