Senior Full-Stack Developer (with Optimizely)

We are looking for an experienced Senior Full-Stack Developer (with Optimizely) to join the team of our client, based in our Poznań or Warsaw. The project focuses on building a modern e-commerce and marketing platform based on composable, headless, cloud architecture, with the goal of delivering a seamless and fully personalized end-to-end customer experience.

Who we are:

We are Inspeerity (part of DevelopX group), a modern software house, providing software development, consultancy, and maintenance services. We specialize in full stack development – from defining project requirements, to designing, building, and deploying software applications for web, backend, enterprise and mobile. We are crazy about technology, serious about people.

TL;DR

• Who: Senior Full-Stack Developer (with Optimizely)

• Contract Type: B2B

• Salary range: Up to 210 PLN/h + VAT

• Start date: ASAP

• Project lenght: ~12 months, with the possibility of extension.

• Company: Software House

• Project topic: Building Materials Industry

What you’ll be doing:

• Developing scalable technical solutions.

• Building and maintaining automated build and deployment pipelines.

• Developing features across the full technology stack, from data access and business logic to the user interface.

• Writing unit tests, fixing bugs, and preparing documentation.

• Troubleshooting and resolving production issues.

• Collaborating closely with business stakeholders to translate requirements into effective technical solutions.

You will be the best fit if you have:

• At least 4 years of practical experience working with Microsoft .NET / ASP. NET Core and SQL Server.

• Strong understanding of software architecture, design patterns, and engineering best practices.

• Hands-on experience in full-stack development using C# and web technologies.

• Solid knowledge of web application performance, quality standards, and security principles.

• Genuine interest in Generative AI and its application in optimizing and automating the software development lifecycle.

• Experience working in Agile environments, including CI/CD pipelines, TDD, and peer code reviews.

• In addition to the stack mentioned above, experience in working with Apache Kafka, Webpack, TailwindCSS, Storybook, Chromatic, Rider, Visual Studio, Git, Github, Gitflow.

• Experience with React is a plus.

• English level B2 or higher.

What we offer

• Hybrid work model from our client’s office in Poznań or Warsaw – 3 days in the office, 2 days remote.

• You’ll join a collaborative team of 12 specialists.

• Great working conditions and best equipment.

• Private, comprehensive medical cover.

• Training budget.

• Physical and psychological care with Multisport Card and Mindgram application.

About process:

• Step 1 - Call with with someone from our People Team.

• Step 2 - Meeting with our .NET Team Lead as a technical interviewer.

• Step 3 - Final stage. A technical interview with the client-side representatives.

Time for your turn! ;)