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I am a Senior .NET Engineer with 13+ years of experience building scalable backend systems, APIs, distributed applications, and cloud-native solutions across banking, e-commerce, tourism, ERP, and SaaS industries. I specialize in C#, .NET 8/9, ASP.NET Core, Azure, microservices, and high-performance enterprise software development. I have delivered enterprise solutions across banking, e-commerce, tourism, ERP, and SaaS domains; led backend architecture and development for Setur, Aygaz, Teknosa, QNB Finansbank, and Enpara; designed distributed systems with microservices and event-driven patterns; and mentored engineers while establishing development standards.…I am a Senior .NET Engineer with 13+ years of experience building scalable backend systems, APIs, distributed applications, and cloud-native solutions across banking, e-commerce, tourism, ERP, and SaaS industries. I specialize in C#, .NET 8/9, ASP.NET Core, Azure, microservices, and high-performance enterprise software development. I have delivered enterprise solutions across banking, e-commerce, tourism, ERP, and SaaS domains; led backend architecture and development for Setur, Aygaz, Teknosa, QNB Finansbank, and Enpara; designed distributed systems with microservices and event-driven patterns; and mentored engineers while establishing development standards.

TUNÇ AKKOYUN

Full Stack Developer, Web Developer, Back-End Developer, +3

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I am a Senior .NET Engineer with 13+ years of experience building scalable backend systems, APIs, distributed applications, and cloud-native solutions across banking, e-commerce, tourism, ERP, and SaaS industries. I specialize in C#, .NET 8/9, ASP.NET Core, Azure, microservices, and high-performance enterprise software development. I have delivered enterprise solutions across banking, e-commerce, tourism, ERP, and SaaS domains; led backend architecture and development for Setur, Aygaz, Teknosa, QNB Finansbank, and Enpara; designed distributed systems with microservices and event-driven patterns; and mentored engineers while establishing development standards.…I am a Senior .NET Engineer with 13+ years of experience building scalable backend systems, APIs, distributed applications, and cloud-native solutions across banking, e-commerce, tourism, ERP, and SaaS industries. I specialize in C#, .NET 8/9, ASP.NET Core, Azure, microservices, and high-performance enterprise software development. I have delivered enterprise solutions across banking, e-commerce, tourism, ERP, and SaaS domains; led backend architecture and development for Setur, Aygaz, Teknosa, QNB Finansbank, and Enpara; designed distributed systems with microservices and event-driven patterns; and mentored engineers while establishing development standards.

Available to hire

I am a Senior .NET Engineer with 13+ years of experience building scalable backend systems, APIs, distributed applications, and cloud-native solutions across banking, e-commerce, tourism, ERP, and SaaS industries.

I specialize in C#, .NET 8/9, ASP.NET Core, Azure, microservices, and high-performance enterprise software development. I have delivered enterprise solutions across banking, e-commerce, tourism, ERP, and SaaS domains; led backend architecture and development for Setur, Aygaz, Teknosa, QNB Finansbank, and Enpara; designed distributed systems with microservices and event-driven patterns; and mentored engineers while establishing development standards.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Turkish

Fluent

English

Advanced

Work Experience

Senior Software Engineer at Setur A.Ş via Pablika

January 1, 2022 - Present

Deliver software consultancy services for Setur's digital transformation initiatives across tourism and travel platforms. Design and develop scalable backend services and APIs using .NET 8/9, Azure, Redis, RabbitMQ /ASB, JWT Authentication, and OAuth 2.0 based security mechanisms. Architect and implement 20+ microservices supporting high-volume business operations in tourism and booking operations. Design event-driven communication patterns to improve system scalability and service decoupling. Lead backend architecture decisions, code reviews, and engineering best practices. Collaborate with product owners, business stakeholders, and development teams to deliver enterprise-grade solutions. Mentor software engineers and contribute to technical hiring processes.

Senior Software Engineer at Undo via Pablika

January 1, 2021 - January 1, 2022

Designed and developed backend APIs and services for Undo, a health and wellness startup based in Tallinn. Worked in a multicultural, distributed team, collaborating closely with product managers, designers, and engineers. Built RESTful APIs powering both web and mobile clients, with focus on scalability and maintainability.

Senior Full-Stack .NET Developer at Undo

January 1, 2020 - Present

Developed web and mobile applications for Undo, a health and wellness startup based in Tallinn. Worked in a multicultural, distributed team, collaborating with product managers, designers, and developers. Implemented full-stack features including APIs, web UI, and mobile app integrations.

Senior Full-Stack .NET Developer (Contract) at Undo

January 1, 2020 - Present

Developed web and mobile applications for Undo, a health and wellness startup. Worked in a multicultural, distributed team, collaborating with product managers, designers, and developers. Implemented full-stack features including APIs, web UI, and mobile app integrations.

Co-Founder & Senior Software Consultant at Pablika

January 1, 2020 - Present

Co-founded Pablika and built a team of 10+ developers delivering enterprise solutions. Led architecture, technical roadmaps and best practices; delivered consultancy to Koç Holding across multiple units to support digital transformation and modernization initiatives. Designed microservices-based web applications using modern .NET technologies and cloud-first practices; collaborated with stakeholders, product teams, and developers.

Senior Software Engineer at Aygaz A.Ş via Rise Consulting

January 1, 2018 - January 1, 2021

Led a 15-person engineering team delivering the Retail ERP platform. Architected and developed backend services and APIs for ERP modules consumed by web and cross-platform mobile clients. Owned team growth, mentoring, code reviews, and conducted technical interviews for new hires. Established backend coding standards, performance benchmarks, and scalability guidelines across services.

Technical Lead / Senior Software Engineer at Rise Consulting

January 1, 2018 - January 1, 2020

Led a 15-person full-stack development team for Aygaz, overseeing team growth, mentoring, code reviews, and technical interviews. Designed and developed Retail ERP system components, including web applications and cross-platform mobile apps. Ensured coding standards, performance, and scalability across services and applications.

Senior Software Engineer at Netix

January 1, 2015 - January 1, 2018

Acted as backend engineer and consultant for the relaunch of Teknosa.com, a major e-commerce platform. Led API development using ASP.NET Core and contributed to mobile app initiatives. Built scalable services integrating with e-commerce, catalog, and order domains.

Senior Software Engineer at Strategia IT

January 1, 2014 - January 1, 2015

Developed a university information system automation as a SaaS product used by 12 universities. Designed and implemented modules for student information, academic operations, and administrative processes.

Fullstack .NET Developer at QNB Finansbank

January 1, 2013 - January 1, 2014

Backend developer for QNB's Internet Investment Projects, building secure and scalable online banking services. Implemented new features and enhancements using ASP.NET MVC. Collaborated with business analysts and QA teams to ensure regulatory compliance and security requirements.

.NET Developer at QNB Bank

January 1, 2013 - January 1, 2014

Full-stack developer for QNB’s Internet Investment Projects; built secure and scalable online banking solutions. Worked with proprietary frameworks and ASP.NET MVC to implement features and enhancements, collaborating with analysts and QA to ensure regulatory and security requirements.

Junior Developer at Ibtech via Strategia IT

January 1, 2012 - January 1, 2013

Worked as a consultant on QNB Internet Banking and Enpara Digital Banking Projects, developing backend and frontend features for banking, payments, and customer account management. Implemented features and integrations using ASP.NET MVC and internal banking frameworks. (Veribranch) Contributed to performance improvements, bug fixes, and overall code quality enhancements.

Junior Developer at Yapı Kredi via Accenture

January 1, 2011 - January 1, 2012

Developed backend Java web services for YapıKredi Bank's technology department. Implemented integrations with core banking systems and supported deployment activities. Gained experience in enterprise-grade software development processes and standards.

Junior Java Developer at Accenture

January 1, 2011 - January 1, 2011

Developed backend Java web services for YapıKredi Bank’s technology department. Implemented integrations with core banking systems and supported deployment activities; gained exposure to enterprise-grade software development processes and standards.

Junior .NET Developer at Strategia IT

January 1, 2011 - January 1, 2013

Full-stack .NET developer for QNB Internet Banking Projects as a consultant. Implemented features for online banking, payments, and customer account management; fixed bugs, improved performance, and contributed to code quality improvements.