Software Engineer (.NET)

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 Software Engineer (.NET) to join the Salesforce Middleware team. You will develop the integration layer connecting the Salesforce-based platform with internal and external services used by customers. This is a hands-on engineering role suited to someone with solid foundations in C# and .NET who wants to deepen their experience in middleware, APIs, and distributed system integrations while gradually taking ownership of increasingly complex solutions.

Key takeaways:

Stack: C#, .NET, .NET Framework, Salesforce (nice to have)

Salary: 14 000 PLN - 19 000 PLN gross on the Contract of Employment

Working model: hybrid - 3x weekly from the office

Location: Krakow

Recruitment process:

• A call with Motife recruiter (30 min)

• Criteria Cognitive Aptitude Test (30 min)

• Hiring Manager Interview (30 min)

• Technical Interview (90 min)

Responsibilities:

• Build and maintain middleware integrations connecting Salesforce with internal and external services using C# and REST/SOAP APIs.

• Write clean, tested, and maintainable code and improve solutions through code reviews and technical feedback.

• Diagnose integration issues, including API failures, data mapping problems, and performance bottlenecks.

• Collaborate with Engineering, Product, QA, and Professional Services throughout the software development lifecycle.

• Contribute to technical documentation and continuously improve integration workflows and engineering practices.

Requirements:

• 3+ years of professional software engineering experience.

• Good practical knowledge of C# and the .NET ecosystem.

• Understanding of REST and/or SOAP APIs, HTTP, and system-to-system communication.

• Familiarity with integration concepts including data mapping, JSON/XML serialization, error handling, and retry mechanisms.

• Ability to troubleshoot problems across multiple systems and understand data flows between services.

• Familiarity with Agile development practices and iterative software delivery.

• Strong analytical, communication, and collaboration skills with openness to code reviews and technical feedback.

• Interest in using AI tools in software development and exploring AI as part of technical solutions.

• A proactive approach to learning, ownership, and continuous improvement.

• Experience building and maintaining middleware integrations connectingSalesforce would be a plus.

What we offer:

• Medical care

• Life insurance

• Multisport

Apply now

If you enjoy solving problems across systems and want to grow into designing reliable middleware solutions, we would like to hear from you! Apply via our careers page and please submit your CV in English.