Salary
$69k – $90k per year
Location
In office (Kraków)
Seniority
Junior · 2+ years exp
Employment
Full-Time
First seen by Alion on Oct 14, 2026.
Overview
Company
Impact
Profile match
We’re looking for a Senior Full-Stack Engineer who brings deep technical expertise and a collaborative mindset to our product development team. You will work with a modern microservices architecture, building scalable backend services using the ASP.NET Web API with C#, and intuitive frontend interfaces using mainly React and TypeScript. This is a hands-on engineering role with a 70/30 front-/backend focus.
We leverage AI in our SDLC and we are seeking for a Full-Stack Engineer who is capable of producing high quality code with the support of AI, yet having the maturity and self-expectation to review and understand the granter scheme of the code in the complexity of the product and adjust accordingly.
This role is ideal for for you if you like to take ownership, thrive in a dynamic product team, and enjoy mentoring others. If you're passionate about designing high-impact software in a cloud-native environment, we’d love to hear from you.
We leverage AI in our SDLC and we are seeking for a Full-Stack Engineer who is capable of producing high quality code with the support of AI, yet having the maturity and self-expectation to review and understand the granter scheme of the code in the complexity of the product and adjust accordingly.
This role is ideal for for you if you like to take ownership, thrive in a dynamic product team, and enjoy mentoring others. If you're passionate about designing high-impact software in a cloud-native environment, we’d love to hear from you.
Zakres obowiązków
- Design, implement and maintain modern React micro frontend applications
- Implement and deliver Full-Stack Features including the infrastructure for it using both, ASP.NET and React/Typescript
- Work closely with Product Owners to clarify feature requirements and ensure business context is well-understood and the product build accordingly
- Ensure features meet Definition of Done, with state-of-the-art unit, integration, and end-to-end test coverage.
- Support incident response and production issue resolution as per team standards.
- Actively contribute to team knowledge sharing and coach colleagues in technical best practices.
Wymagania
Essential Qualifications:- MSc+ in Computer Science or equivalent
- 5 years of proven experience in building solid front-end applications with React is a non-negotiable must have.
- At least 2 years of experience in building secure REST APIs using ASP.NET
- Comprehensive knowledge of contemporary web application architectures, with a focus on microservices and cloud design patterns.
- Demonstrated ability of high technical Ownership is requirement for this role.
- Hands-on experience with AWS infrastructure.
- Experience working in cross-functional product teams using Agile practices and following Domain-Driven Design (DDD).
- Clear and adaptive communication with both technical and non-technical stakeholders.
- Strong sense of ownership, accountability, and proactive problem-solving.
- Languages:
- English: B2 - (No certificate required, but Fluency)
- German: desired, not required
Tech stack
- .NET
- React
- REST API
- AWS
- DDD
- Claude
- TypeScript
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