RoofStacks is hiring a

Web3 Senior Software Developer (Virtual POS)

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. 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.

- Design, develop, and maintain secure, high-volume, 24/7 active transactional systems

- Contribute to architecture and design, with a focus on API Gateway layers and microservices

- Analyze complex business requirements and collaborate with cross-functional teams

- Write clean, scalable, testable code following modern development best practices

- Participate actively in Agile methodologies (Scrum, Kanban)

- Provide technical insight during design, implementation, and testing phases

- Define and execute test and research activities based on business needs

- Ensure customer expectations are fully understood and reflected in project outcomes

- Experience in developing software for large-scale, enterprise-level projects

- Strong command of object-oriented programming (OOP) principles

- 7+ years of experience in software development

- Proficiency in .NET (C#) and/or Java is highly preferred

- Prior experience in Virtual POS (Sanal POS) projects is a strong plus

- Alternatively, experience in internet-facing, high-security, high-availability, transactional systems

- Solid understanding of Payment Systems

- Familiarity with Mastercard, Visa, BKM process simulators

- Knowledge of EMV, Switch, Provisioning, Dispute Management

- Understanding of Card Production and Smart Card Technologies

- Experience in Merchant Management and POS operations

- Strong analytical, communication, and problem-solving skills

- Ability to prioritize, plan, and deliver tasks effectively

- Demonstrated ability to understand and align with customer and business expectations