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Senior Full-Stack Developer (Optimizely)

World leader in stone wool solutions, transforming volcanic rock into sustainable products since 1937.
Poznań, Poland
Backend
Senior Software Engineer
Hybrid
5,000+ Employees
4+ years of experience
Enterprise SaaS · E-Commerce

Description For Senior Full-Stack Developer (Optimizely)

ROCKWOOL, a global leader in stone wool solutions, is seeking a Senior Full-Stack Developer to join their digital transformation journey. This role is part of an exciting initiative to build a new e-commerce and marketing platform based on composable, headless, cloud architecture. The position is based in Poznań, Poland, where you'll be part of a collaborative web development team known for its strong cooperation and positive culture.

The tech stack is modern and comprehensive, including .NET 8+, Episerver/Optimizely CMS, Microservices, Apache Kafka, and SQL Server on the backend, with NextJS, React, and TailwindCSS on the frontend. The DevOps environment utilizes Azure DevOps and Github Actions, with modern development tools like Rider and Visual Studio.

As a Senior Full-Stack Developer, you'll be responsible for developing scalable solutions, implementing automated pipelines, and working across the full stack. The role requires 4+ years of experience with .NET/ASP.NET Core and SQL Server, along with strong knowledge of software design patterns and web technologies.

ROCKWOOL offers an attractive compensation package including hybrid work options, flexible hours, comprehensive healthcare, and various lifestyle benefits. The company, with over 12,200 employees across 40+ countries, is committed to sustainability and has pledged to contribute to 11 UN Sustainable Development Goals.

The position offers an opportunity to work on cutting-edge technology while contributing to sustainable development through innovative stone wool solutions. The company culture, known as "The ROCKWOOL Way," emphasizes ambition, responsibility, integrity, and efficiency.

Last updated 3 hours ago

Responsibilities For Senior Full-Stack Developer (Optimizely)

  • Developing robust, scalable technical solutions
  • Implementing and maintaining automated build and deployment pipelines
  • Developing features across the stack—from data access and business logic to UI
  • Writing unit tests, fixing bugs, and documenting when needed
  • Troubleshooting and resolving production issues
  • Collaborating closely with business stakeholders

Requirements For Senior Full-Stack Developer (Optimizely)

JavaScript
TypeScript
Node.js
React
  • 4+ years of hands-on experience in Microsoft .NET/ASP.NET Core and SQL Server
  • Solid grasp of software design patterns and architectural principles
  • Proven experience in full-stack development with C# and web technologies
  • Strong understanding of performance, quality, and security in web applications
  • Familiarity with Agile practices like CI/CD, TDD, and code reviews
  • Experience with React is a plus
  • English proficiency at B2 level or higher
  • Excellent communication skills and collaborative mindset
  • Experience with serverless/microservices architectures
  • Knowledge of RESTful APIs on .NET
  • Experience with Optimizely DXP

Benefits For Senior Full-Stack Developer (Optimizely)

Medical Insurance
Dental Insurance
Vision Insurance
  • Competitive salary
  • Permanent contract after probation
  • Development package
  • Team building events
  • Modern office in city center
  • Home office up to 2 days per week
  • Flexible working hours
  • Home office subsidy
  • Private Medical Care
  • Multikafeteria MyBenefit
  • Wellbeing program
  • Extra day off for voluntary activities
  • Modern office amenities
  • Subsidized canteen

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