Software Engineer (FullStack .NET/React) Maritime development team

Traffit; Warszawa; Hybrid; PLN 150,000 - 210,000; Full time

Benefits offered by this job

medical care

life insurance

trainings

Multisport card

Job summary

KUBO in Poland seeks a Software Engineer (FullStack .NET/React) to join a maritime development team. You will work on a web platform built on microservices, Azure cloud, and on-premise solutions, with hybrid work in Gdynia.

The role emphasizes designing, developing, testing, and deploying robust software, building scalable AI-enabled workflows, and collaborating with an international team to improve performance and reliability.

Qualifications

• 5+ years of professional software development experience.
• Experience with Microsoft tech stack: .NET, React, TypeScript.
• Fluent English and strong communication across teams.

Responsibilities

• Design, develop, test, and deploy solutions using the Microsoft stack and Azure.
• Build AI workflows and optimize them for cost and latency.
• Create scalable, fault-tolerant Azure-based services that are user-friendly.
• Collaborate in an international team and participate in agile processes.

Skills

English proficiency

Agile practices

Team collaboration

Software design

Problem solving

Education

Degree in CS/SE

Tools

NET (C#)

React

TypeScript

WebComponents

WebAPI GraphQL

NServiceBus

MS SQL

Job description

Software Engineer (FullStack .NET/React) Maritime development team

Join a global team focused on development in the maritime industry, which is working on building a web platform based on microservices, Azure cloud, and on-premise solutions. As the maritime industry faces the need to reduce CO2 emissions, the platform leverages machine learning and artificial intelligence to provide data and reports on fleet CO2 emissions, supporting end users in verifying this data and making informed decisions aimed at reducing greenhouse gas emissions.

As a consultant, you’ll work hybrid in Gdynia with a passionate, international team. Collaboration with team members is essential, involving regular discussions to brainstorm ideas and tackle complex problems. Testing and deploying solutions is a routine part of the job, with a focus on optimizing performance and reliability. You will also work on building scalable, fault-tolerant systems on Azure infrastructure, ensuring they are user-friendly and manageable.

Key responsibilities

• Design, develop, test, and deploy solutions using various tools and technologies
• Create solutions that facilitate the usage and building of artificial intelligence workflows, optimizing them for cost and latency
• Build solutions on top of Azure infrastructure that are user-friendly, scalable, fault-tolerant, and easy to manage
• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience).
• 5+ years of professional experience in designing, developing, and delivering robust, scalable, and maintainable software solutions using the Microsoft technology stack, including: .NET (C#), React, TypeScript, WebComponents, WebAPI GraphQL, NServiceBus, MS SQL.
• Strong understanding of microservice architecture, APIs, and modern system design principles.
• Experience in the full lifecycle of the application.
• Experience with agile development practices.
• Fluent in English with strong communication skills to collaborate effectively across teams and stakeholders.

Conditions

• Work model: hybrid in Gdynia (3 days per week)
• Employment type: B2B
• Benefits: medical care, life insurance, trainings, Multisport card

At KUBO, we genuinely care about people. We welcome candidates of all ages, backgrounds, identities, family constellations, health situations, and ways of thinking and interacting with the world. You’re welcome to be yourself — we value authenticity, and we’re committed to creating a fair and inclusive process for everyone.