Johan David Salinas Carvajal
Johan David Salinas Carvajal

TECNICA PROFESIONAL EN SOPORTE DE SISTEMAS E INFORMATICA

Open to offers · Member since 29 Oct 2026
Location
Bogotá, Colombia
Desired salary
Unspecified
Work preference
Remote Only / Full Time
Experience level
Junior

About

Professional summary

I am a junior developer with 15 months of experience across IT infrastructure, technical support, and internal software development. I focus on PHP, SQL, and process automation, combining development skills with hands-on knowledge of business operations.

I designed and deployed an IT asset and Office license inventory system that is currently used by my company. I built it from scratch using PHP, MySQL, HTML, CSS, and JavaScript, covering requirements gathering, data modeling, development, deployment, and post-release support.

My technical support background has given me practical experience resolving approximately 50 daily Level 2 tickets involving workstations, servers, corporate applications, user accounts, and connectivity. This operational perspective helps me identify recurring issues and automate high-value processes.

I have experience administering Active Directory and Microsoft 365, including user onboarding and offboarding, security groups, role profiles, and license management. I have also supported VPN access, corporate antivirus policies, routers, switches, load balancers, and endpoint configuration.

In my current junior developer role, I restore and improve production functionality in a corporate application, resolve bugs in legacy third-party code, and integrate external REST services. I validate endpoints with Postman and produce technical documentation, procedures, and architecture diagrams to reduce dependency on undocumented knowledge.

I am currently in the seventh semester of Systems Engineering and continue strengthening my skills in backend development, SQL, API integration, and software maintenance.

Skills

17 capabilities

Tech stack & tools

Working toolkit

Application Utilities

Data Stores

Development

Experience

Career history

Junior Developer SIACOMEX — Agencia de Aduanas Nivel 1

Restored affected functionality in the production corporate application by resolving approximately eight monthly bugs in third-party legacy code without introducing regressions in active modules.

Integrated REST services delivered by an external system into the corporate application, validating each endpoint in Postman before implementation. Created technical manuals, step-by-step procedures, and application architecture diagrams to reduce reliance on undocumented operational knowledge.

IT Assistant — Internal Support and Development SIACOMEX — Agencia de Aduanas Nivel 1

Developed and deployed from scratch an IT asset and Office license inventory system using PHP, MySQL, HTML, CSS, and JavaScript. Implemented assignment logic, equipment traceability, and license lifecycle control.

Replaced manual spreadsheets and paper records for 400 devices and 350 licenses, managing requirements gathering, data modeling, development, deployment, and post-launch support independently. Maintained operational continuity for 400 employees by resolving approximately 50 daily Level 2 support tickets.

Administered Active Directory and Microsoft 365 account lifecycles, including onboarding, security groups, role profiles, licenses, and offboarding to prevent unauthorized active access after employee departures.

IT Intern SIACOMEX — Agencia de Aduanas Nivel 1

Achieved operational autonomy within six months and transitioned into an IT Assistant role after the internship. Provided help desk and onsite and remote Level 2 support.

Administered external-user VPN access, corporate antivirus console policies and alerts, and diagnosed issues involving routers, switches, and load balancers. Prepared and delivered approximately five computers per week, including operating system installation, network profiles, formatting, and delivery documentation.

Tracked equipment intake and output, creating the operational foundation that was later transformed into the company IT inventory system.

Education

Learning history

CUN

Systems Engineering, Systems Engineering

Currently in the seventh semester. Estimated graduation date: January 2028.

Cisco Networking Academy

Certificate, HTML, CSS and JavaScript Essentials

Completed HTML, CSS and JavaScript Essentials training.

IED Almirante Padilla

Academic High School Diploma

Completed academic secondary education.

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