Opero
Management system that brings an SMB's sales, customers, inventory, invoicing and finances together in a single web platform.
ReactTypeScript.NET / C#SQL Servern8nREST API
See the live projectThe process, step by step
Hi, I'm Octavio Fakiani
Full Stack
Developer
Full Stack Developer with 3+ years building custom web applications, REST APIs and AI integrations with React, Node.js and C#/.NET on SQL Server and PostgreSQL. Remote experience with teams in the United States and India.
English B2 / C1Remote — US & AsiaAvailable for freelance
Fromproblemtosolution.Ibuildmodern,scalablesoftwareforSMBsthatneedtogrow—automatingprocesses,integratingartificialintelligenceandmakingdata-drivendecisions,withReact,.NETandPython.
Tech Stack
Technologies and tools I work with
React
TypeScript
Tailwind CSS
Next.js
Node.js
C# / .NET
REST APIs
PostgreSQL
MySQL
SQL Server
Python
Power BI
n8n
React
TypeScript
Tailwind CSS
Next.js
Node.js
C# / .NET
REST APIs
PostgreSQL
MySQL
SQL Server
Python
Power BI
n8n
React
TypeScript
Tailwind CSS
Next.js
Node.js
C# / .NET
REST APIs
PostgreSQL
MySQL
SQL Server
Python
Power BI
n8n
Services
What I Do
Fast, scalable, custom-built web applications.
- Building modern web applications with React and Next.js
- Designing and integrating REST APIs and databases (SQL Server, PostgreSQL, MySQL)
- Focus on performance, UX and responsive design
01
Web Development
Fast, scalable, custom-built web applications.
- Building modern web applications with React and Next.js
- Designing and integrating REST APIs and databases (SQL Server, PostgreSQL, MySQL)
- Focus on performance, UX and responsive design
My path
My Journey
ExperienceCurrentRemote
Full Stack Developer
Code Assurance
2025 — PresentCórdoba, Argentina
I lead end-to-end development of business management web applications with React, C# (.NET Web API) and SQL Server, defining the data model and REST API architecture from scratch. I design automations with LLMs and n8n that eliminate 12 hours of manual data entry per week, and I build Power BI dashboards for 8 clients/business areas. Full development cycle under Scrum in 2-week sprints.
ReactC#.NETSQL ServerREST APIsn8nPower BIScrum
EducationCurrent
Systems Analysis & Software Development
Colegio Universitario IES
2024 — Nov 2026Córdoba, Argentina
Degree in progress, focused on software development, databases, systems analysis and agile methodologies.
Systems analysisSQLSoftware development
ExperienceCurrent
Freelance Web Developer — Opero & JoinMe
Independent Projects
Jan 2024 — PresentCórdoba, Argentina
Opero: web-based ERP for SMBs (React + .NET/Node + PostgreSQL) with sales, inventory and user modules, role-based access control and automated reports via n8n; actively used by 4 companies. JoinMe: event and digital invitation platform (React + REST APIs + PostgreSQL) with automated notifications and real-time RSVP. Responsible for the full stack of both products, from data modeling to deployment.
ReactNode.js.NETPostgreSQLREST APIsn8nVercel
ExperienceRemote
Software Analyst
Fortek Solutions
2024 — 2025Córdoba, Argentina
Built full-stack business management web applications (React + .NET Web API + SQL Server) for SMB clients, from requirements gathering to deployment. Relational database modeling, design of REST APIs reused across modules and integration of automations with n8n and LLMs. Worked in agile teams with testing and quality control before every release.
React.NETSQL ServerREST APIsn8nAIScrum
ExperienceRemote
Full Stack Developer
RCM Technologies
2023 — 2024United States
Developed internal and client-facing web applications with React, Node.js and .NET, including database modeling and REST API design. Built business dashboards and reports, and integrated external services via APIs. Collaborated in distributed teams using agile methodologies, covering analysis, development, testing and deployment.
ReactNode.js.NETREST APIsSQLDistributed teams
ExperienceRemote
Full Stack Developer
Detect Technologies
2022 — 2023India
Developed full-stack industrial monitoring platforms with React, Node.js and SQL/NoSQL databases. Built REST APIs and real-time alerting systems, along with data visualization modules for operators. Took part in the full product cycle: frontend, backend, data modeling and production deployment.
ReactNode.jsSQLNoSQLREST APIsReal-time
Experience
IT Technician
NeuTech
Jan 2022 — Oct 2022Córdoba, Argentina
Hardware technical support and database administration for internal IT operations. Contributed to internal infrastructure and process digitization projects.
Technical supportHardwareDatabases
Training
Certifications
01
2025
Microsoft Back-End Developer
Microsoft (Professional Certificate)
Professional certificate in back-end development: REST API design, databases and server-side application architecture.
BackendREST APIsSQLArchitecture
02
2024
Power BI: Build a Dashboard from Scratch
Udemy
Data visualization, data modeling and building interactive dashboards for business analysis.
Power BIDAXPower QueryVisualization
03
2024
Python Without Borders: HTML, CSS, Flask & MySQL
Udemy
Full-stack web development with Python and Flask, covering the frontend, MySQL databases and application deployment.
PythonFlaskMySQLHTML / CSS
How I work
Languages & Soft Skills
Languages
Comfortable working in English with international teams and clients.
SpanishNative
EnglishB2 / C1 — professional
Soft Skills
3+ years working remotely with distributed, agile teams.
- Autonomy & proactivity
- Technical communication
- Adaptability
- Problem solving
- Remote teamwork
Featured
Projects
View allCase studies
Behind the projects
The client's real problem, the decisions I made before writing a single line of code, and what happened next. Tap each step to expand it.
About my experience
I specialize in taking management systems and web platforms from idea to production, with a focus on one specific problem: modernizing processes that SMBs still handle by hand or with outdated systems — from replacing a legacy payroll system to automating repetitive tasks with AI. I've worked with accounting firms, retailers, and event and recruiting platforms, always owning the full cycle: frontend, backend, database and deployment.
Main stack: React, Node.js, .NET and SQL Server, with n8n automations and AI integrations when the project calls for them, using whichever model best fits each case instead of tying myself to a single provider. I prioritize solutions the client can maintain and understand, not just ones that work on delivery day.
10+
Projects built
5+
Clients across industries
3+ years
Development experience
Legacy → Cloud
From legacy systems to modern production
Let's talk
Contact
Have a question or a project in mind? Feel free to reach out.
Location:
Córdoba, Argentina