Senior Software Engineer

KUBO Show all offers

230 PLN / hour

Gdynia

Expires Sep 28, 2026

11 days ago

In short

Senior Software Engineer for a global digital maritime platform. Develop C# framework, frontend components, and docs. Requires .

NET 8.0, C#, React/StencilJS, event-driven archs, EF Core, DBs, Docker/K8s, REST APIs. B2B contract, 100% remote. Salary up to 230 PLN/h.

Keywords

.NET C# React.js StencilJS Kafka PostgreSQL Docker Kubernetes RESTful APIs Agile

AI-written summary based on the listing content.

Join an experienced team developing a global digital platform for the maritime industry. As a Senior Software Engineer, you will contribute to a product that helps shipowners and fleet operators manage data effectively, improve operational safety, and achieve their decarbonisation and CO₂-emission reduction goals.

This is a role for someone who wants to have a genuine impact on the product’s direction - from making architectural decisions and shaping business logic to building scalable features used by clients across the maritime sector.

You will work in an international environment alongside technology and domain experts with extensive experience, contributing to a platform that brings together data, applications, and digital services to support more efficient and sustainable maritime operations.

Key responsibilities

Extend and develop custom C# framework for workflow migration
Build and maintain frontend components
Writing technical documentations
Extending automated tests framework
Support pilot deployments with responsive issue resolution
Collaborate with stakeholders to validate solutions against business requirements Balance evolving pilot priorities with ongoing development workIdeal candidate profile
Strong proficiency in .

NET 8.0 and C# for building scalable microservices and extending custom frameworks

Frontend development with React.js and/or StencilJS (Web Components) Experience with event-driven architectures (Kafka, Mass

Transit)

Hands-on experience with Entity Framework Core and databases (PostgreSQL, MongoDB, SQL Server) Container orchestration (Docker, Kubernetes, Helm Charts)RESTful APIs with ASP.

NET Core (OpenAPI Standard)

Observability and monitoring (Open

Telemetry, Prometheus, Grafana)

Strong communication skills for technical documentation and customer interaction

Familiarity with Agile methodologies and CI/CD workflows (Azure

DevOps, GitHub)

Experience with AI-assisted development tools (Microsoft Copilot)

ConditionsB2B cooperation - the contract will be signed with KUBO

Minimum 12-month engagement100% remote work, with 2-4 business trips per year to the office in Gdynia or Norway
Salary: up to 230 PLN/hNon-salary benefits available from day one: private medical care, life insurance, 50% co-financing of the MultiSport card, and funding for cloud certification exams
Equipment will be provided by the client
Recruitment steps
Screnning call with Recruiter (around 30 min.)

Interview with Tech Lead (30 min.)

Technical session with the Team (2h)

Final meeting with Line Manager (30 min.)