Haydar Şahin
Verified Expert in Engineering
Software Developer
Munich, Germany
Toptal member since October 3, 2022
Haydar is a passionate software engineer focused on mobile systems with experiences in various industries. He loves developing software products and helping development teams reach their goals. Haydar's main strengths are a highly-structured mindset that helps him break down complex problems into something simple to solve, a passion for improving the products from end-to-end by taking over responsibility, and a genuine attitude that reveals the best from the people around him.
Portfolio
Experience
Availability
Preferred Environment
MacOS, Xcode, Android Studio, Visual Studio Code (VS Code), Slack, GitHub, Jira, Confluence
The most amazing...
...thing I've developed is an eye-glass eCommerce mobile application with a unique domain and specific features using augmented reality.
Work Experience
Senior Consultant
NetLight Consulting AB
- Started the development of the cross-platform mobile app and attended meetings with stakeholders and external development teams to inform our team about the requirements. The client was a healthcare startup, and I was the senior software engineer.
- Developed a complicated subsystem, a virtual try-on using AR for a mobile eCommerce app using iOS, Unity 3D, and Vapor. The client was a German eye-wear company, and my role was a senior software engineer.
- Built a department of three product teams, comprising around 20 people, and hired talents to develop the products. The same German eye-wear company was the client, but I was the technical lead this time.
- Brainstormed product ideas with given requirements and designed solution options by iterating over multiple possible solutions options and collecting feedback. I also scoped the products and planned the roadmaps.
- Acted as product owner, defining transparent OKRs with the key stakeholders and team members, and transformed the requirements into user stories for the development team to work on.
- Led the development of an Android car appl, which will be installed in the next generation of cars. I was the mobile application architect.
- Designed the app's architecture in an environment with constantly changing requirements.
- Coached junior team members and improved the Agile methodologies used in the team.
Co-founder
Teniscim
- Kicked off and led the development of the Teniscim mobile app using React Native.
- Headed the development of the back-end server of the Teniscim mobile app using Express.js.
- Brainstormed and decided on MVP as one of the three co-founders.
Software Engineer | iOS and Augmented Reality
Siemens
- Researched the applicability and scalability of ARKit in industrial environments.
- Developed multiple proofs-of-concept to visualize the capabilities of ARKit in industrial environments with object scanning and detection topics.
- Designed a system that generates 3D mapping and reconstruction of industrial environments with semantic information using a mobile app.
- Created a mobile app with a custom-developed back end for the designed system.
Software Engineering Intern
Volkswagen
- Developed and maintained the internal use case and user management tool of Volkswagen data lab.
- Created a permission management tool that enabled setting unique permissions for each user, which was mapped directly from the organizational permissions.
- Built an auto-generation tool for financial graphs and reports that lowered the workload of the finance teams.
Software Developer
Physioh
- Developed and maintained PhysioHealth iOS and Android apps. It is an employee health and wellness engagement platform that increases employees' health and productivity and decreases healthcare costs for companies.
- Created and launched MiBo iOS app from scratch. It is a B2C/B2B healthcare consultancy app that enables users to have video chats with psychologists, nutritionists, and personal trainers.
- Consulted the company's co-founders on technical topics and became a trusted advisor to them.
Software Developer
Valensas
- Developed Pisti, a Turkish card game iOS app with single-player and multi-player functionalities. Built the AI of the different levels of difficulties.
- Created Sozluk from scratch, an offline Turkish-English dictionary iOS app.
- Built Tekfen HR from scratch, an iOS interface for potential employees and customers for one of the largest construction firms in Turkey called Tekfen.
Experience
An Eye-glass eCommerce Application
TIK | Tekfen IK
Pisti
Sozluk
https://apps.apple.com/tr/app/sozluk/id306926242?l=trEducation
Master's Degree in Informatics
Technical University of Munich - Munich, Germany
Bachelor's Degree in Management Engineering
Istanbul Technical University - Istanbul, Turkey
Bachelor's Degree in Computer Engineering
Istanbul Technical University - Istanbul, Turkey
Skills
Libraries/APIs
REST APIs, Node.js, Socket.IO
Tools
Xcode, Android Studio, GitHub, Jira, Confluence, Mongoose, Slack
Languages
Swift, Kotlin, Objective-C, JavaScript, Python, C#, TypeScript
Frameworks
ARKit, React Native, AngularJS, Angular, Flask, Unity3D, Express.js, Jest, Flutter
Paradigms
REST, Agile Project Management, Agile Product Management, Design Patterns, Objectives & Key Results (OKRs)
Platforms
iOS, MacOS, Firebase, Android, Visual Studio Code (VS Code), Docker
Storage
MongoDB, MySQL
Other
Software Engineering, Agile Product Delivery, Mobile Applications, Mobile Apps, Mobile App Development, Software Design, Software Architecture, Software Project Management, Augmented Reality (AR), Entrepreneurship, Machine Learning, Artificial Intelligence (AI), Full-stack Development, Leadership, Product Discovery, Coaching
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