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Hakan O.

@hakanodev

5.0
1

2.9

2.9

100%

🌟 Top 1% Developer | 20+ yrs 💎 Proven Quality

$50 USD / Hour

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United States (5:22 PM)

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Joined on July 17, 2025

$50 USD / Hour

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I am a Senior Software Developer, Technical Architect, and Enterprise Architect with over 20 years of experience delivering complex software solutions across industries including finance, healthcare, energy, retail, banking, and industrial automation. I specialize in designing scalable, secure, and future-proof architectures, and I bring hands-on expertise across a wide tech stack: from backend systems and cloud-native applications to mobile apps, AI integrations, and industrial systems. With a background in full-cycle development and leadership roles (including CTO, Development Director, and Architecture Practice Manager), I understand both the technical and business sides of projects. My work spans PHP, .NET, C#, Python, Java, React, Angular, NodeJS, mobile development (Xamarin, React Native), cloud platforms (Azure, AWS), microservices, DevOps, AI/ML (GPT-4, LLMs, NLP), and enterprise architecture frameworks like TOGAF and ArchiMate. I am known for: • Building end-to-end software solutions, from architecture to delivery • Leading cross-functional, international teams • Driving cloud migrations and modernizing legacy systems • Implementing AI, automation, and chatbot solutions • Managing stakeholder communication, risk, and project delivery in Agile/Lean setups My client approach is centered on clear communication, solution-driven design, and a long-term partnership mindset. Whether you need technical leadership, architecture consulting, hands-on development, or integration of cutting-edge technologies like GenAI or RAG pipelines, I’m here to help. Let’s turn your vision into a reliable, scalable, and innovative solution!

Verifications

On time

100%

On budget

100%

Accept rate

33%

Portfolio

Portfolio

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5.0 · 1 Review
1 Review
M
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Mark F.

5.0

$280 USD

10 months ago

Connect Cloudflare to Internal AI App

Very patient. Took the time to walk me through step by step.

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Experience

Senior Software Developer, Technical Architect

Jun, 2024 - Jan, 2025

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7 months, 1 day

Concurrency

Jun, 2024 - Jan, 2025

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7 months, 1 day

Collect, organize, classify client requirements, create technical solutions for the clients of a consulting firm. Present technical solutions to the stakeholders, gather and organize stakeholder reviews. Design, develop, and deploy AI Automation and Chatbot applications for the clients in various industries. • Architecture definition documents, architecture diagrams, non-technical presentations • Python, Node, C#, .Net Core, Power Platform, JavaScript, Socket.io

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Chicago, United States

Jun, 2024 - Jan, 2025

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7 months, 1 day

Senior Developer Solutions Architect

Feb, 2023 - Jun, 2024

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1 year, 4 months

MPW Industrial Services

Feb, 2023 - Jun, 2024

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1 year, 4 months

Gather, analyze and classify requirements. Identify key stakeholders, arrange stakeholder review meetings, present architecture, value propositions, risks and cost. Design, development, and deployment of real-time (time-critical) industrial water systems including web application, mobile application, PLC application (embedded), desktop application, remote terminal management. • ASP.NET Core, Blazor, Angular, Telerik, SignalR, WPF • Xamarin, Maui • PowerBI, Telerik Reporting

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Columbus, United States

Feb, 2023 - Jun, 2024

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1 year, 4 months

Senior Developer, Application Architect

Jul, 2022 - Feb, 2023

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7 months

ESP Energy

Jul, 2022 - Feb, 2023

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7 months

Identify business, technical, legal and security requirements of the business initiative. Review and approve compliance requirements, confirm access management. Identify, document and communicate baseline architecture, target architecture, the gap between baseline and target architecture and define architecture roadmap. Design and development of multi-tenanted, highly configurable, cloud-native energy efficiency software as a service.

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Shakopee, United States

Jul, 2022 - Feb, 2023

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7 months

Education

University of Phoenix

2001 - 2005

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4 years

Bachelor's Degree in Computer Science

Flag of

United States

2001 - 2005

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4 years

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