The beginnings: boundless curiosity
I'm Diego Cuesta. I'm 39 years old and I've been deeply curious since I was a kid. I took things apart and put them back together — always wanting to understand how they worked. My family used to joke that I could even take apart a pellet.
In 1998 I had my first contact with technology when my father bought a clone PC with an AMD 586DX, 8 MB of RAM, a 500 MB hard drive and Windows 95. One day I decided to open it, explore it, and I couldn't stop. Without knowing it, I had defined the direction of my life: I learned MS-DOS, Windows 95 and the basics of hardware. By age 11 I was already giving informatics lessons to my own biology teacher at school.
My first ever tech service call was for a neighbor — while trying to upgrade her Windows 95 to 98, I ended up bricking the hard drive. That didn't stop me.
With how limited internet access was back then, I met friends I learned with, swapped programs, techniques and information, and read computer magazines (like enter.co) in the big retail stores. At school, my "computer class" was repairing the school's own machines — which my teacher probably charged for — while my classmates had regular lessons. Through those friendships I also picked up English in a totally empirical way, sharing the same passions: computing, technology and music.
First steps in training and first contracts
When I graduated high school I had no idea what to study, but I knew I was good at computers. The first opportunity that showed up was studying electronics, where I learned the foundations of electricity, basic electronics and digital electronics. Then I started Systems Engineering at the University of Cartagena, but it wasn't what I expected, and in my immaturity I dropped out.
I worked providing tech support to individuals and small businesses. My first formal contract was at Elektroas, installing new equipment and providing on-site warranty service. Later I worked at a construction company called Celin Ltda., executing a corrective and preventive maintenance contract for the National Police, in the sanitation division.
Forums, Android and the technical community
I joined forums like Laneros.com, noticias3d.com and xda.com, where I made friendships and strategic alliances I still keep today. I got deep into Android and became obsessed with applying root, custom ROMs, and squeezing the most out of any Android device.
A second passion is born: music
Around that same time I bought my first DJ controller: the Behringer BCD 3000. With it began a parallel passion that years later would also turn into work.
IPTV, hardware and overclocking
I learned about IPTV: codecs, playlists, EPGs, set-top boxes, and everything around delivering television over IP. I then became a hardware and overclocking enthusiast, took part in OC tournaments on HWBOT.org, and built rigs with custom liquid cooling loops.
IPTV in real use (HBO, EPG) and liquid loop with red coolant — HWBOT.org era.
But that world requires a level of spending I couldn't keep up with at the time, given my priorities. I learned to let it go in time — something I also apply today with client technology: not every latest generation makes sense for every case.
Going back to school (2010)
In 2010 I went back to school at the Fundación Tecnológica Antonio de Arévalo (now Unitecnar). I completed the technical and technological cycles, and also studied Systems Engineering — which I couldn't finish due to lack of funds.
At Unitecnar I deepened the empirical knowledge I already had and focused it on the business side. I made friendships and contacts there; today several former classmates and professors are colleagues I collaborate with.
Techno3 (2013): the trade school
In 2013 I had the chance to work at Techno3, an IT support company where I had creative freedom and freedom to execute. It was a lot of fun: I met many people and learned how very different businesses work, analyzing client needs and strengthening what they already had.
At Techno3 I led a support team, installed radio links, configured and maintained servers, deployed backup systems, built websites, automated processes, set up and configured networks, and installed, maintained and configured CCTV systems. I learned the administrative side and how to deal with service and supply providers. I completed every challenge that came up and became known for the quality of my work and knowledge.
In parallel I kept doing music: I bought my second controller, the Native Instruments Traktor S4, and started doing live sets.
2017: the big leap to direct client
The growth paid off. In 2017, one of Techno3's main clients — a large company in marine and port operations — decided to hire me directly. They gave me their trust and opened their doors.
I still work with them today — not as an employee but as their supplier of support, advisory, application development and automation. My former boss at Techno3 was someone I learned a lot from when it comes to customer care, assertive communication with management and executives, and how to handle unexpected situations and emergencies that hit business continuity.
Sectors that have passed through my hands
That knowledge and those skills allowed me to sign contracts with companies in notarial, construction, real estate, sales, textile, woodworking, industrial, medical, laboratory, TV production and music production sectors, among others.
The construction firm hit by ransomware (late 2017)
In late 2017, a client referred me to a construction firm that had suffered a ransomware attack and lost 90% of its accounting data. I ran an audit, identified the root causes, wrote a report, and proposed improvements plus a set of security policies. We're still working together to this day.
The Cartagena notary offices (2018–2020)
In 2018 I had the chance to design and deploy the network and systematization of the Seventh Notary Office of Cartagena. They've kept me on ever since.
Most notary offices in Cartagena run on a MySQL-based piece of software whose developer no longer offers support. I reverse-engineered it and was able to understand how it works, which let me provide temporary services to the 2nd, 3rd and 1st Notary Offices. That led, in 2020, to a service contract with the 2nd Notary Office, where I earned their trust and they let me optimize the system and develop an application that automates the creation of property minutes from a horizontal property regulation.
During that period I also bought my third DJ controller, the Pioneer DDJ-RB, keeping the other passion alive.
2025: new directions
In 2025 I set out to change things: I decided to own 100% of my own time. I signed a contract with the multinational Avaso Technology, providing support services for the Rafael Núñez International Airport in Cartagena.
I also decided to start offering DJ services professionally: I bought my current controller, the Pioneer DDJ-FLX 4, picked up everything I needed — Beta3 VX15A 15" speakers — and started playing on catamarans, by the sea, on the sea, and in the bay of Cartagena. I fell in love with that experience.
Outdoor set with hat (professional DJ stage, 2025) and catamaran at sunset in the Bay of Cartagena — a favorite venue.
That's why anyone visiting this site will notice a DJ section where I offer those services. It's not a stray hobby: it's professional work with real equipment and stage experience.
Philosophy: knowing the basics and the necessary of many things
I'm someone who doesn't know everything, but who knows the basics and the necessary of many things. Applying logic and knowing what and how to research, I stay in constant growth.
Every day I keep up with new software and technology launches, the global context, and how to improve my knowledge or service. I take courses and certifications and keep improving my English — to the point where my work has become, in a healthy way, my lifestyle. I also make time to keep up with music, practice technique, and grow as a DJ.
Deep generalist where it matters. I don't chase every trend, but when something a client needs requires going deep — ransomware, a downed network, software with no vendor support, a weird integration — I go deep. The curiosity that made me open that 586DX in 1998 is still intact.
What matters most
I love my work. And beyond the financial compensation for my fees, what fills me most on a personal and professional level — and is also my calling card — is client satisfaction and gratitude.
If you are my client and you're reading this, you should feel identified. And if you're not one yet, I invite you not to miss the opportunity to hire my services.