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Nicolas H.

@widuIT

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5.0
108

8.6

8.6

97%

Full Stack Engineer | Software Architect | AI

$60 USD / Hour

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Argentina (9:16 AM)

Joined on June 25, 2014

10 Recommendations

$60 USD / Hour

Hi, I’m Nico — an Application Architect / Technical Lead with 17+ years building software for real businesses across LATAM, the US, and EMEA. I’ve been on Freelancer.com for 10+ years, with 105+ 5-star reviews and 100+ delivered projects. Most of my work comes from long-term clients who needed someone senior to take ownership and keep delivery steady. Some clients come with a clear spec, others come with “we need this to work”. I’m comfortable with both. My job is to help you make good decisions early, build the right thing without drama, and leave you with a system you can run and evolve. What I can help you with - Building web apps and internal tools that people actually use (customer-facing or back-office). - Improving existing products: performance, stability, messy codebases, recurring bugs, slow releases. - Integrations and automation: connecting services, syncing data, payments, notifications, workflows. - Scaling without overcomplicating: keeping things simple, but ready to grow when the business grows. - Production readiness: deployments, monitoring, logs, and reducing “it works on my machine” moments. How I work - I ask the right questions upfront (goals, constraints, users, timelines, risks). - I communicate clearly and regularly — no disappearing acts. - I deliver in milestones, document key decisions, and keep the project easy to maintain. - I can lead the technical direction, and I’m also hands-on. Tech-wise, I work mostly with TypeScript (Node.js/NestJS) and modern frontends (Angular/React), backed by PostgreSQL/MongoDB/Redis and cloud deployments (often AWS). But I don’t “force a stack” — I pick what fits the problem and your budget. If you want someone senior who can take ownership, keep things grounded, and ship reliably, I’d love to hear about your project.

Verifications

On time

97%

On budget

99%

Accept rate

97%

Repeat hire rate

20%

Portfolio

Portfolio

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5.0 · 108 Reviews
108 Reviews
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Patricio F.

5.0

$250 USD

1 day ago

Mejora y Ajustes de Plataforma Web

Excelente trabajo de Nicolas. Entendió rápidamente nuestros requerimientos y logró desarrollar mejoras importantes para nuestra plataforma de forma ordenada y eficiente. Destacamos su buena comunicación, compromiso, rapidez y capacidad para resolver problemas durante el proceso. El resultado final cumplió completamente nuestras expectativas. Totalmente recomendado para proyectos tecnológicos y de desarrollo.

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Patricio F.

5.0

$800 USD

20 days ago

Desarrollo módulo de formularios operativos y validaciones en plataforma web

Excelente experiencia nuevamente. Es la segunda vez que trabajamos con este freelancer, lo que demuestra consistencia y confianza en su trabajo. Implementó un módulo nuevo en un sistema complejo de forma clara, ordenada y alineada a nuestra operación. Destaca por su comprensión de requerimientos, cumplimiento de plazos y buena comunicación, ademas de detectar mejoras que se pueden considerar. Totalmente recomendado para desarrollos serios de alto nivel y bien ejecutados.

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Patricio F.

5.0

$2,300 USD

3 months ago

Plataforma Servicios Monitoreo

Tuvimos una excelente experiencia trabajando con Nico. El proyecto era técnicamente complejo y lo desarrolló con gran profesionalismo, rapidez y precisión. Siempre estuvo disponible, propuso buenas soluciones y la comunicación fue clara durante todo el proceso. He trabajado con varios freelancers y puedo decir que destaca en todos los aspectos: calidad, rapidez, comunicación y compromiso. Para nuestros futuros proyectos sera pieza fundamental. Totalmente recomendado.

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Raúl C.

5.0

$750 USD

3 months ago

Construir una sistema para un colegio

Nicolás es un profesional de primer nivel. Desde el primer contacto, su comunicación fue clara, rápida y siempre proactiva. Tiene un conocimiento técnico sólido y sabe explicar las cosas de manera comprensible. Lo que más destaco es su disposición: siempre estuvo atento a mis necesidades y abierto a realizar ajustes sin problema. Sin duda volvería a contratarlo.

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Russ R.

0.0

$2,000 USD

11 months ago

Property Lot Measurement Platform

The project is not completed according to the dispute

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Experience

Sr Application Specialist

Dec, 2012 - Jul, 2014

1 year, 7 months

Ernst & Young

Dec, 2012 - Jul, 2014

1 year, 7 months

Ernst & Young (known as EY) is a multinational professional services firm headquartered in London, United Kingdom. It was the third largest professional services firm in the world by aggregated revenue in 2012 and is one of the "Big Four" audit firms. I joined the company as Sr Application Specialist for Windows based Web Applications (Sharepoint 2010 & .NET based apps) of Argentinian IT service center, providing support worldwide. Main Tasks: - Applications and tools creation for process automation and optimization. - Internal training (basic and advanced) on the following topics: Sharepoint 2010; .NET applications debug and profile; Web Application performance improvements. - Technical reference for .NET & Sharepoint based applications, being point of reference in .NET based application issues troubleshooting and fixation for high impact and priority (even outside my department scope) cases. - Code analysis and review for issue & security flaws identification, bottlenecks and code optimization in .NET based applications. - Technical writer and reviewer for Sharepoint 2010 internal documentation.

Dec, 2012 - Jul, 2014

1 year, 7 months

Technical Analyst

Aug, 2011 - Nov, 2012

1 year, 3 months

Philip Morris International

Aug, 2011 - Nov, 2012

1 year, 3 months

Joined Philip Morris International (PMI) Web and Collaboration IT department, which provided support and. Worked under ITIL V3 framework in different tasks and technologies. Main Tasks - Application administration in web environments under Microsoft Technologies. - Systems automation and administration & monitoring tools creation. - .NET applications debug, trace and profile, guiding developers on how to optimize and - Design of Web Applications & solutions Architecture. Technologies Used: - Windows Server 2003 - Windows Server 2008 - Microsoft SharePoint 2010 - .NET Framework - FAST Search Server for SharePoint 2010 - Internet Information Services 6, 7 & 7.5 - PowerShell - Autonomy IDOL Server - Oracle WebLogic - Webtrends 7 Enterprise

Aug, 2011 - Nov, 2012

1 year, 3 months

IT Administrator

Jan, 2008 - Mar, 2011

3 years, 2 months

La Nacion S.A.

Jan, 2008 - Mar, 2011

3 years, 2 months

La Nacion is one of the most important newspapers in Argentina. I was part of the IT office of the web sites related to the Company: www.lanacion.com.ar 8th in Argentinian traffic (http://www.alexa.com/topsites/countries/AR) Main Tasks - Systems implementation, administration & maintenance under Microsoft & Linux platforms for high traffic web sites. - Web Application security: Penetration Test's, Vulnerability assessment, design of system security strategies. - Web Application performance optimization and fine tuning of the following company sites: www.lanacion.com; www.canchallena.com; www.rollingstone.com.ar; www.revistaohlala.com. Technologies Used: - Windows Server 2003 - Windows Server 2008 - .NET - Red Hat Enterprise 5 - Ubuntu Server 10 - Internet Information Services 6, 7 & 7.5 - Apache 1.3 & Apache 2 - Cacti - Nagios - Squid - Varnish - MySQL - Shellscripting (Bash) - VBScripting & PowerShell - Perl - Nessus - Nikto

Jan, 2008 - Mar, 2011

3 years, 2 months

Education

Universidad Argentina de la Empresa

2009 - 2011

2 years

Computer Science

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Argentina

2009 - 2011

2 years

Universidad de Buenos Aires

2004 - 2008

4 years

Political Science

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Argentina

2004 - 2008

4 years

Qualifications

TS: Microsoft Office SharePoint 2010, Configuring - 70-667

2012

Microsoft, Licencia Certification ID: 9301863

Detailed Information: https://www.microsoft.com/learning/en-us/exam-70-667.aspx

2012

ITIL Foundation v3.0

2012

APM Group

ITIL (formerly known as the Information Technology Infrastructure Library) is a set of practices for IT service management (ITSM) that focuses on aligning IT services with the needs of business. In its current form (known as ITIL 2011 edition), ITIL is published as a series of five core volumes, each of which covers a different ITSM lifecycle stage. Although ITIL underpins ISO/IEC 20000 (previously BS15000), the International Service Management Standard for IT service management, the two frameworks do have some differences. ITIL describes processes, procedures, tasks, and checklists which are not organization-specific, but can be applied by an organization for establishing integration with the organization's strategy, delivering value, and maintaining a minimum level of competency. It allows the organization to establish a baseline from which it can plan, implement, and measure. It is used to demonstrate compliance and to measure improvement.

2012

Certifications

P

Preferred Freelancer Program SLA

HTML5 - Level 1

HTML5

CSS - Level 1

CSS

PHP5 - Level 1

PHP5

PHP - Level 2

PHP

MySQL - Level 1

MySQL

JavaScript - Level 1

JavaScript

SQL - Level 1

SQL

Freelancer Orientation

Freelancer Orientation

PHP - Level 1

PHP

WordPress

WordPress

US English - Level 1

US English

HTML - Level 1

HTML

PHP5 - Level 2

PHP5

US English - Level 2

US English

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