I'm Erdem Giray, a backend-focused software engineer with 10+ years of experience building scalable, maintainable systems across various industries. I specialize in cloud infrastructure (AWS and Azure), serverless architectures, and distributed systems. I focus on delivering clean, high-impact solutions and continuously improving team processes and software quality, while mentoring teammates and driving efficient delivery.

Erdem Giray

I'm Erdem Giray, a backend-focused software engineer with 10+ years of experience building scalable, maintainable systems across various industries. I specialize in cloud infrastructure (AWS and Azure), serverless architectures, and distributed systems. I focus on delivering clean, high-impact solutions and continuously improving team processes and software quality, while mentoring teammates and driving efficient delivery.

Available to hire

I’m Erdem Giray, a backend-focused software engineer with 10+ years of experience building scalable, maintainable systems across various industries. I specialize in cloud infrastructure (AWS and Azure), serverless architectures, and distributed systems.

I focus on delivering clean, high-impact solutions and continuously improving team processes and software quality, while mentoring teammates and driving efficient delivery.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

Turkish
Fluent
English
Advanced

Work Experience

Backend Engineer at Rio Mobile
December 1, 2024 - August 1, 2025
Hired as the first dedicated backend engineer to work directly with the CTO on backend infrastructure for IoT-focused SaaS products. Took ownership of backend services, maintained and extended a CoffeeScript-based system, and developed a new fleet management model. Led cost optimization by migrating data pipeline from Redshift to DynamoDB, reducing monthly AWS costs by over $1,000 while improving system performance.
Backend Team Lead at Done
July 1, 2020 - December 1, 2024
Led a 4–6 full-stack developers responsible for Done's backend services, infrastructure, and web applications (parallel to the Mobile team handling native apps). Architected and developed Webee, a multi-language hotel guest service platform deployed to 200+ hotels, enabling guests to request services directly through their phones while solving language barrier challenges. Managed the full stack including backend APIs, AWS infrastructure, CI/CD pipelines, web frontends, and team mentorship. Built serverless backends with AWS Lambda and implemented scalable data solutions with DynamoDB and PostgreSQL.
Senior Full-Stack Developer at Malliq
October 1, 2019 - July 1, 2020
Worked on Malliq's location analytics platform providing foot traffic intelligence to retail businesses. Built backend to collect and process location signals from mobile apps via Malliq SDK, enabling customers to analyze traffic patterns (e.g., tracking how many people passed specific stores in malls). Implemented multi-tenant SaaS architecture with dedicated EC2 instances and isolated databases per customer for data privacy. Developed real-time data collection pipelines and customizable analytics dashboards with Angular for visualization of location insights.
Software Developer at Digital
June 1, 2015 - December 1, 2017
Developed a full-stack web platform for image/video uploads and management, initially serving public users before transitioning to internal editorial use due to legal constraints.
Software Developer at Self-employed
August 1, 2013 - May 1, 2015
Established a digital media company generating revenue through mobile advertising and CPA partnerships. Built three high-traffic websites with 370k daily views and led full-stack development including content management, analytics tracking, and advertising optimization.
Software Developer
July 1, 2010 - August 1, 2013
Started career developing automation scripts and mobile apps for a software company serving other businesses. Progressed from writing iOS apps and PHP backends to high-performance back-end services for increased traffic. Led server administration and infra optimization to handle significant user loads, including a popular mobile game with 25,000 concurrent players. Managed over 100 App Store submissions and revenue optimization for mobile advertising campaigns. Technologies included Python, Objective-C, PHP, Node.js, Java, MongoDB, Redis, MySQL, Apache, NGINX.

Education

MBA at Istanbul Bilgi University
January 1, 2008 - January 1, 2011
Metallurgy and Materials Engineering at Yildiz Technical University
January 1, 2001 - January 1, 2008

Qualifications

Certified Scrum Professional
January 11, 2030 - March 5, 2026

Industry Experience

Software & Internet, Media & Entertainment, Retail, Travel & Hospitality, Professional Services