As Roof Stacks, we have been carrying out innovative projects since 2015. We aim to become a global actor in Tourism Systems, Extended Reality(AR/VR), Blockchain Technologies, Game Development, and Financial Technology, which are our areas of expertise. We focus on creating a difference with the technologies we develop and designing the future. In addition to our central office in Ataşehir/İstanbul, we have branches in Antalya and Elazığ in Turkey. We have strengthened our position in the global market by opening a new office in Austin, USA, which hosts world technology giants from all over the world.  Qualifications *Bachelor's or Master's degree in Computer Science, Software Engineering or related field. *Minimum 5+ years of work experience in software development, *Excellent performance and practical experience with Microsoft Development Technologies, .NET Framework,.NET Core, C# *Excellent understanding of programming fundamentals (OOP, SOLID, DRY, YAGNI, KISS, data structures, algorithms), *Experience in at least one of the fields of Merchant Management, ISO 8583 Switch, Provisioning, EMV, Compliance (Visa, Mastercard, BKM etc.) Certification , Dispute Management, POS *Strong knowledge of RESTful API design and consumption, *Familiarity with distributed cache and messaging queue, *Experience in Object-relational mapping techniques and ORM frameworks/tools *Experience in authentication/authorization protocols *Familiarity with CI/CD flows for DevOps, *Designing infrastructure or module code development processes in accordance with protocols and analysis documents, *Unit testing habit with complete coverage, *Coding habits with quality, readable, testable and maintainable, *Good understanding of lean/agile values and implementing in SDLC, *Comfortably with Agile methods such as Scrum and/or Kanban. Communication Methods *Ability to convey ideas easily, *Ability to have professional communication with each stakeholder, *Ability to be clear, short, open, and persuasive in all kinds of communication, *Ability to detect problems and solve them in the very beginning   Teamwork Expectations *Ability to help the team while creating a sustainable product with higher quality, *Ability to offer practical solutions, *Ability to direct all kinds of technical and non-technical negotiations in a way that results in a positive outcome *Ability to have a good grasp of the team, task, and/or customer issues and collaborate with relevant managers when necessary, and swiftly prevent or resolve these, *Ability to act with common sense while solving problems