Senior Software Developer, Maritime Platform (NET/Python)

OneOcean Group; Polska; Hybrid; PLN 200,000 - 280,000; Full time

Benefits offered by this job

Premier Health Coverage

Vision Care Perks

Group Insurance

Pension scheme

Multisport Gym Access

Social Benefit Fund

Employee Assistance Program

Job summary

OneOcean Group is seeking a Senior Software Developer in Poland to design, build, and maintain high‑performance maritime software. You will work closely with product managers, designers and engineers to deliver robust features and improve the platform's quality and reliability.

You will apply your extensive experience in .NET and Python, guided by best practices, to evolve capabilities, maintain the codebase, and support mission‑critical operations across global users.

Qualifications

• 7+ years in commercial development.
• Proficiency in .NET framework/core and Python.
• Experience with microservices and distributed architecture.
• Strong REST/GraphQL, asynchronous programming, and logging.
• Experience with SQL/NoSQL (MsSQL, MongoDB), Docker, and cloud (Azure).

Responsibilities

• Design, code, test, debug, and document software applications using .NET, Python, cloud and related technologies.
• Ensure performance, quality, and responsiveness of applications.
• Collaborate with team to design and ship new features.

Skills

NET/.NET Core

Python

OOP

REST/GraphQL

Asynchronous programming

SQL/NoSQL

Docker

Azure

Microservices

Tools

MS SQL

MongoDB

Docker

Azure

Job description

OneOcean Group is seeking a Senior Software Developer in Poland to design, build, and maintain high‑performance maritime software. You will work closely with product managers, designers and engineers to deliver robust features and improve the platform's quality and reliability.

You will apply your extensive experience in .NET and Python, guided by best practices, to evolve capabilities, maintain the codebase, and support mission‑critical operations across global users.