--- title: 'Senior Backend Developer at Roofstacks' canonical: 'https://feeny.ai/job/senior-backend-developer-roofstacks-istanbul-8j2wws7esz6p' type: 'job' last_seen: '2026-09-12' --- # Senior Backend Developer at Roofstacks - **Company:** Roofstacks - **Location:** İstanbul, Turkey - **Employment:** full-time - **Work type:** hybrid - **Posted:** 2025-12-15 - **Last confirmed live:** 2026-09-12 - **Apply:** https://jobs.lever.co/roofstacks/3b558b4c-4521-4283-9543-ee8ba9220c41 ## Job description 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. We're looking for someone who has *Bachelor's or Master's degree in Computer Science, Software Engineering or related field. *Minimum 5+ years of experience in backend development, preferably in large-scale distributed systems, *Experience in Digital Banking *Strong expertise in Microsoft Development Technologies, .NET Framework, .NET Core and C#, *Hands-on experience in designing and developing BFF (Backend-for-Frontend) layers for mobile applications, *Excellent understanding of core engineering principles (OOP, SOLID, DRY, YAGNI, KISS, data structures, algorithms), *Strong knowledge of RESTful API design, API orchestration and backend aggregation patterns, *Experience with integration layers, microservices, API gateways and service-to-service communication, *Strong experience using distributed cache systems (Redis or equivalent) and messaging queues (Kafka, RabbitMQ, etc.), *Experience with ORM frameworks/tools and Object-Relational Mapping techniques, *Experience with authentication/authorization standards such as OAuth2, OpenID Connect, JWT, and secure session handling, *Familiarity with CI/CD pipelines, DevOps processes and containerization (Docker, Kubernetes), *Ability to develop infrastructure or module-level code aligned with analysis artifacts, integration contracts and architecture guidelines, *Practical experience working with Agile frameworks such as Scrum or Kanban, *Ability to analyze, optimize and troubleshoot performance issues in high-traffic mobile application backends. 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. ## About Roofstacks ## Company Overview - **One-liner**: RoofStacks is a Turkish-founded technology company specializing in software development for tourism systems, augmented reality, gaming, and digital finance, operating under the "Technology as a Service" model. - **Entity Type**: Private (Pre-Seed) - **Headquarters**: Austin, Texas, United States (with major operations in Turkey) - **Founded**: 2015 - **Founders**: Not publicly available (founded within HAR Group) ## Core Business - **Primary Industry**: Software Development - **Target Customers**: B2B (enterprises in tourism, banking, and various sectors); B2C via gaming and AR products - **Mission Statement**: "To reach a leading position in the world of technology on a global scale by offering solutions that go beyond borders for our business partners and users." ## Products & Services - **Roof Travel (Bilet Dükkanı)**: A leading online ticket sales portal in Turkey, simplifying travel agency workflows for flight tickets, hotel reservations, and insurance. - **Roof Money (GoArt)**: An augmented reality platform that introduces historical places. It includes a proprietary Ethereum-based cryptocurrency ("Goarc") used for collecting virtual coins within the app. - **Roof Games**: A game development studio producing hyper-casual, mobile, and console games (e.g., *Floppy Foot*, *Olpamis*). - **Data, AI & Blockchain Solutions**: Development of software leveraging Artificial Intelligence, Natural Language Processing, and Distributed Ledger technology for enterprise clients. ## Market Standing - **Valuation**: Not publicly available (GoArt project valued at $30M in a $12M funding round) - **Total Funding**: USD $1.1M (Pre-Seed round led by Bilet Dükkanı in May 2022) - **Key Metric**: 195 employees (as of latest data, -51% YoY) - **Notable Investors/Partners**: Bilet Dükkanı (lead investor); partnership with "Turkey's largest bank" for digital transformation. - **Growth Signals**: Opened a US office in Austin, Texas (2020); transitioned from hyper-casual to mobile/console games; completed first phase of a major console game (*Olpamis*). ## Competitive Advantages - **Diversified Tech Portfolio**: Operates across four distinct business units (Travel, Money, Games, Enterprise AI/Blockchain), reducing dependency on a single revenue stream. - **First-Mover in AR Tourism**: GoArt is touted as the world's first project to introduce historical places via augmented reality with a built-in token economy. - **"Technology as a Service" Model**: Provides end-to-end, customized digital transformation solutions, giving clients speed, efficiency, and cost advantages. ## Strategic Focus - **Global Expansion**: Establishing a stronger physical presence beyond Turkey, with offices in the US and plans for Canada and the Netherlands. - **Gaming Sector Growth**: Pivoting from hyper-casual to higher-revenue mobile and console game development to capture a larger share of the $180B global gaming market. - **Enterprise Digital Transformation**: Expanding into the banking and finance sectors with blockchain and AI-based solutions for large-scale clients. ## Why Work Here - **Culture**: Prioritizes collaboration, creativity, and team spirit. Regularly hosts "happy week" gatherings, New Year celebrations, coffee chats, and team competitions. - **Work Environment**: Modern, flexible, and comfortable office spaces designed to encourage creativity and efficient work. - **Benefits**: Comprehensive private health insurance from day one; share options available after 6 months of employment; top-tier equipment provided. - **Learning & Development**: Access to "Har Institute" for training and development to keep skills current with the latest technologies. - **Recruitment**: Open to students, recent graduates, and experienced professionals. The process includes a preliminary interview. - **Work Policy**: Not explicitly stated (remote/hybrid/office), but the presence of 5 global offices suggests location-based flexibility. ## Sources 1. [roofstacks.com](https://roofstacks.com/company-overview) 2. [linkedin.com](https://linkedin.com/company/roofstacks) 3. [roofstacks.com](https://roofstacks.com/career) 4. [roofstacks.com](https://roofstacks.com/history) 5. 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