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Offer summary
(Summary generated by AI based on the full job description)
The project is a SaaS HR platform supporting the full recruitment lifecycle. Core stack includes C#, .NET Framework, .NET 8, Microsoft SQL Server and frontend with JavaScript/TypeScript, React/Angular. Responsibilities cover developing and maintaining features in a large .NET application, modernizing components to .NET 8, building backend services and APIs (REST, SOAP, GraphQL), working with SQL Server and Entity Framework, frontend development, resolving complex production issues, contributing to CI/CD (TeamCity, Jenkins), performing code reviews, mentoring and participating in a rotational on-call schedule.
from: 5 October 2026
to: 4 November 2026
24 000 - 25 600 złgross/ mth.contract of employment (full-time)
Salary details
basic salary
Offer parameters
level:senior
working mode:hybrid
location:Kraków, Lesser Poland
Kraków, Lesser Poland
Requirements
Expected technologies
C#
.NET Framework
Microsoft SQL Server
JavaScript
TypeScript
Optional technologies
GraphQL
Claude Code
Our requirements
- 8+ years of professional software development experience.
- Strong commercial experience with C# and .NET Framework, ideally with large, mature applications and established codebases.
- Strong experience with Microsoft SQL Server, including writing queries and troubleshooting database-related issues.
- Experience developing and maintaining Web APIs, particularly REST APIs; experience with SOAP or GraphQL is an advantage.
- Good knowledge of JavaScript/TypeScript and hands-on experience with React, Angular, or another frontend framework.
- Strong debugging and problem-solving skills and the ability to work independently within a complex existing system.
- Experience writing unit and integration tests and delivering maintainable, production-ready code.
- Comfortable working across different technologies and switching between backend, frontend, and database-level tasks when needed.
- Experience using Claude Code or another AI-assisted development tool to support coding, testing, or problem-solving.
Your responsibilities
- Develop and maintain features across a large-scale .NET application, working primarily with C#, .NET Framework, and Microsoft SQL Server.
- Work with a mature codebase while gradually modernizing selected components and services using .NET 8.
- Build and maintain backend services and APIs, including REST, SOAP, and GraphQL.
- Work directly with SQL Server and Entity Framework to write queries, troubleshoot data issues, and improve application performance.
- Develop frontend functionality using JavaScript/TypeScript and frameworks such as React, Angular, and Knockout.
- Investigate and resolve complex technical and production issues across application, database, and infrastructure layers.
- Take end-to-end ownership of features, from technical design and implementation through testing and production support.
- Contribute to CI/CD and deployment processes, including TeamCity and Jenkins pipelines.
- Participate in architectural discussions, code reviews, and technical decision-making.
- Mentor less experienced engineers and share technical knowledge across the team.
- Use Claude Code and other AI-assisted tools as part of the everyday development process.
- Participate in a rotational on-call schedule related to production deployments, approximately once every six weeks.
About the project
We are hiring on behalf of our client, a global leader in HR technology, delivering an end-to-end SaaS platform that supports the entire recruitment lifecycle. Trusted by thousands of organizations worldwide, their solutions combine cloud technology, automation, and cutting-edge AI to help businesses hire smarter, work more efficiently, and deliver better talent experiences.
We are looking for a Senior Full-Stack Engineer to join an experienced engineering team working on a large-scale platform used by customers around the world. This is a hands-on role focused primarily on backend development, combining work on a mature, business-critical application with the gradual modernization of selected components to .NET 8. You will work across application code, APIs, databases, and frontend technologies, taking ownership of complex technical problems from investigation through production.
Key takeaways:
Stack: C#, .NET Framework, .NET 8, Microsoft SQL Server, JavaScript/TypeScript, React/Angular
This is how we organize our work
This is how we work
in houseyou develop several projects simultaneouslyyou have influence on the choice of tools and technologiesyou have influence on the technological solutions appliedyou have influence on the productyou develop the code "from scratch"you focus on product development
This is how we work on a project
- Continuous Deployment
- Continuous Integration
Apply now
Join an experienced engineering team where you can take ownership of complex technical challenges, work on a large-scale .NET platform, and contribute to its gradual modernization. Apply via our careers page, and please submit your CV in English.
What we offer
- Medical care
- Life insurance
- Multisport
Development opportunities we offer
- development budget
- space for experimenting
- time for development of your ideas
Benefits
- sharing the costs of sports activities
- private medical care
- life insurance
Recruitment stages
- 1.A call with Motife recruiter (30 min)
- 2.Criteria Cognitive Aptitude Test (40 min)
- 3.Technical Interview (1h)
- 4.Hiring Manager Interview (30 min)
Motife Sp. z o.o.
MOTIFE is a trusted partner for tech companies choosing Poland to build and grow their engineering and software development capabilities.
We help software companies, startups, fintechs, technology companies, and industry disruptors with their IT recruitment and, wherever necessary, advisory in setting up a presence in Poland and daily operations.
Our end-to-end support helps us build long-term relationships with new IT players, which means we can offer some of the most interesting career opportunities for skilled software and IT professionals like you.
Senior Full-Stack Engineer
24k–25.6k zł / mth. (CoE)
I apply to:
Motife Sp. z o.o.
Kraków, Lesser Poland
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