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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on developing modern web applications with emphasis on .NET and React. Required expertise includes C#, Web API, SQL Server, and DevOps involving CI/CD and automation. Responsibilities cover architecture design, implementing solutions following best practices, UI improvements, change management, and customer support. Flexible cooperation models are offered alongside benefits such as healthcare, Multisport card, and training opportunities.
from: 11 August 2026
to: 10 September 2026
24 000 - 30 000 złnet (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:senior
working mode:hybrid
location:Kraków, Lesser Poland
Kraków, Lesser Poland
Requirements
Expected technologies
C#
Web API
React
SQL
Microsoft SQL Server
Operating system
Windows
Our requirements
- 7+ years of professional experience in developing production applications within the .NET ecosystem, including front-end development and DevOps activities.
- Proficiency in C# and Web API development, with strong knowledge of building scalable and secure backend services.
- Hands-on experience with React, focusing on dynamic, interactive, and high-performance web applications.
- Expertise in database design and SQL, particularly with SQL Server, including advanced T-SQL scripting, query optimization, and performance tuning.
- Solid experience in DevOps practices, including continuous integration and continuous delivery.
- Strong understanding of the Software Development Life Cycle (SDLC).
- Exceptional problem-solving skills and attention to detail, ensuring high-quality deliverables and efficient resolution of complex technical challenges.
Your responsibilities
- Implement solutions following best design patterns and coding practices.
- Analyze requirements to understand solutions and recommend improvements.
- Lead UI changes and enhancements to improve user experience and application stability.
- Actively participate in DevOps automation and improve the CI/CD lifecycle.
- Manage changes through the service management lifecycle.
- Contribute to software architecture design and develop application prototypes to validate concepts.
- Provide exceptional customer support, addressing and resolving issues promptly.
- Communicate effectively with stakeholders to understand needs and deliver appropriate solutions.
- Note: Detailed project information will be shared during the recruitment process.
About the project
We are looking for a Fullstack Engineer to lead the development of modern web applications, combining strong backend expertise in .NET with advanced front-end skills in React. This role involves working on UI improvements, DevOps automation, and application stability, while actively contributing to architecture design and continuous integration processes.
Sounds like your kind of challenge?
This is how we organize our work
This is how we work
agilescrum
This is how we work on a project
- Continuous Deployment
- Continuous Integration
- DevOps
Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.
What we offer
- Flexible cooperation model – choose the form that suits you best (B2B, employment contract, etc.)
- Hybrid work setup – 6 days onsite per month in Krakow
- Collaborative team culture – work alongside experienced professionals eager to share knowledge
- Continuous development – access to training platforms and growth opportunities
- Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
- High quality equipment – laptop and essential software provided
Benefits
- sharing the costs of sports activities
- private medical care
- sharing the costs of professional training & courses
- life insurance
Mindbox Sp. z o.o.
At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe.
Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.
Fullstack Engineer
24k–30k zł / mth. (B2B)
I apply to:
Mindbox Sp. z o.o.
Kraków, Lesser Poland
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