Mid-level .NET Developer

Ocean Technologies Group

Middle .NET Developer designing and maintaining .NET applications for OneOcean, a leader in maritime compliance solutions. Collaborating with teams to deliver high-quality software solutions in a remote role.

Posted 5/18/2026full-timeRemote • 🇵🇱 PolandMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

AWSAzureCloudDockerGraphQLMicroservicesMongoDBMS SQL Server.NETNoSQLSQL

About the role

Key responsibilities & impact

Design, code, test, debug, and document software applications using .NET, cloud and related technologies.
Ensure the performance, quality, and responsiveness of applications.
Collaborate with the team to define, design, and ship new features.
Work with project leaders, product owners, and developers to understand business requirements and translate them into technical solutions.
Provide ongoing maintenance, support, and enhancements in existing systems.
Offer support to end-users of the application, by troubleshooting and problem solving.
Stay up to date with new technology trends and best practices in .NET development.
Continuously improve the codebase, fix bugs, and optimize performance.
Participate in code reviews to ensure code quality and shared knowledge.
Create and maintain comprehensive documentation for software solutions.
Develop and implement unit and functional tests to ensure code quality.
Assist in defining test scenarios and in testing the developed functionality

Requirements

What you’ll need

6+ years in commercial development.
Technical expertise in .NET and object-oriented programming.
Proficiency in Test-Driven Development (TDD), unit, integration, and acceptance testing.
Experience with microservices, distributed architecture, GraphQL, REST APIs, event buses, and message queues.
Understanding of Domain-Driven Design (DDD).
Understanding of client-server architecture and asynchronous programming.
Familiarity with SQL/NoSQL (MS SQL Server, MongoDB), Docker, and cloud platforms (AWS/Azure).
Excellent communication, teamwork, detail-oriented, and analytical skills.
Bachelor’s degree in computer science, Software Engineering, or a related technical field
Equivalent practical experience or certifications (e.g. Microsoft Certified: Azure Developer Associate, .NET certifications) will also be considered
A commitment to continuous learning and staying current with modern development practices is highly valued.

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account Ocean Technologies Group Website LinkedIn All Job Openings 201 - 500 employees Founded 2020 🛍️ eCommerce 📚 Education 🚗 Transport 💰 Venture Round on 2015-05 eCommerce
Education
Transport Ocean Technologies Group is a company dedicated to transforming the maritime industry through innovative e-learning and crew management solutions. They provide a comprehensive library of maritime training courses, competency management systems, and performance evaluation tools to empower maritime professionals and support organizations in meeting compliance and operational excellence. By leveraging technology, they aim to enhance the skills of seafarers and optimize vessel performance in a rapidly evolving industry. Mid-level .NET Developer Job not on LinkedIn 🔥 0 minutes ago 🇵🇱 Poland – Remote ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer AWS Azure Cloud Docker GraphQL Microservices MongoDB MS SQL Server NoSQL SQL .NET Apply Now Find Hiring Managers Customize resume + cover letter Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Design, code, test, debug, and document software applications using .NET, cloud and related technologies.
Ensure the performance, quality, and responsiveness of applications.
Collaborate with the team to define, design, and ship new features.
Work with project leaders, product owners, and developers to understand business requirements and translate them into technical solutions.
Provide ongoing maintenance, support, and enhancements in existing systems.
Offer support to end-users of the application, by troubleshooting and problem solving.
Stay up to date with new technology trends and best practices in .NET development.
Continuously improve the codebase, fix bugs, and optimize performance.
Participate in code reviews to ensure code quality and shared knowledge.
Create and maintain comprehensive documentation for software solutions.
Develop and implement unit and functional tests to ensure code quality.
Assist in defining test scenarios and in testing the developed functionality 🎯 Requirements
6+ years in commercial development.
Technical expertise in .NET and object-oriented programming.
Proficiency in Test-Driven Development (TDD), unit, integration, and acceptance testing.
Experience with microservices, distributed architecture, GraphQL, REST APIs, event buses, and message queues.
Understanding of Domain-Driven Design (DDD).
Understanding of client-server architecture and asynchronous programming.
Familiarity with SQL/NoSQL (MS SQL Server, MongoDB), Docker, and cloud platforms (AWS/Azure).
Excellent communication, teamwork, detail-oriented, and analytical skills.
Bachelor’s degree in computer science, Software Engineering, or a related technical field
Equivalent practical experience or certifications (e.g. Microsoft Certified: Azure Developer Associate, .NET certifications) will also be considered
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Hard Skills & Tools

.NETobject-oriented programmingTest-Driven Development (TDD)unit testingintegration testingacceptance testingmicroservicesDomain-Driven Design (DDD)asynchronous programmingSQL/NoSQL

Soft Skills

communicationteamworkdetail-orientedanalytical

Certifications

Microsoft Certified: Azure Developer Associate.NET certifications