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Fiverr Pro
English
$
USD
I will build custom software and data solutions
Alejandro Araya
About this gig
Are you looking for a reliable partner to build high-performance software and scalable data solutions?
I am a Software Engineer & Technical Lead with 4+ years of experience delivering robust systems for the Financial, Real Estate, and Industrial sectors. I dont just write code; I design architectures that solve real business problems using Clean Code standards.
What I offer:
- Custom Software Development: High-quality backend and full-stack solutions.
- Data Engineering: Advanced SQL optimization, database design, and Python automation.
- Scalable Architecture: Systems built to grow with your business.
- Technical Consulting: Expert requirement analysis and strategic planning.
Tech Expertise:
- Core: .NET, Java, Kotlin.
- Data: SQL Server, Oracle, Python, Power BI.
- DevOps: Azure, GitFlow, API Integrations.
Why choose me?
- Proven Track Record: Experience in complex sectors like Fintech and Proptech.
- Quality First: I prioritize maintainability and performance.
- Professional Documentation: Clear insights into how your system works.
Lets discuss your project and build the right solution today!
Get to know Alejandro Araya
Alejandro Araya
Software Engineer
- FromCosta Rica
- Member sinceMar 2026
- Avg. response time8 hours
Languages
Spanish, English
Software Engineer with 4+ years of experience in .NET and Data Engineering (SQL Server, Oracle, Python). I build scalable solutions that improve efficiency and drive business growth.
• Full-Stack: .NET (C#, ASP.NET Core, Blazor)
• Data: SQL optimization + Python (Pandas)
• Mobile: Java, Kotlin, REST APIs
• DevOps: Azure DevOps, CI/CD, GitFlow
Experience in Sustainability, Real Estate, and Finance, combining strong technical skills with business understanding.
FAQ
Will the code be easy to maintain?
Yes. I apply Clean Code standards and scalable architectures to every project. I don't just deliver a working solution for today; I build professional, documented systems that any developer can easily understand and scale tomorrow.
Can you work with my current tech stack?
Absolutely. As a Software Engineer, I am proficient in multiple languages including .NET, Python, SQL, and Java. My focus is not just writing code, but choosing and applying the best technical architecture to solve your specific business problem.
What happens if I need changes after delivery?
Client satisfaction is my priority. My packages include revisions to fine-tune details. Additionally, the Premium package includes one month of technical support to ensure your system remains stable in production.
