Custom web development
Management applications, online sales and payments, private portals, intranets and backends for apps and games. Also websites and online shops.
Based in Valencia, Spain. Working worldwide.
Custom software and infrastructure built to hold up.
I design, build and maintain web platforms and the infrastructure behind them. From online sales and membership management to the network, the servers and the backups.
- 25+
- years building and running systems
- 1000s
- of users on the platforms I maintain
- 2 sides
- application and infrastructure, one person in charge
production · status all good
What I work with
Sound familiar?
Common situations where I can help.
- 01
You need a website, a shop or an app and do not want to depend on a template.
Custom development, built around your business and designed to be found on Google.
- 02
Your site goes down right when most people arrive.
A virtual waiting room, caching and servers sized for the peak, not for an ordinary day.
- 03
You answer the same questions every day.
An AI assistant that answers the usual questions from your own information and leaves the important ones to your team.
- 04
Your site redirects to odd places or Google flags it as dangerous.
It needs cleaning, closing the door and finding out how they got in so it does not happen again.
- 05
Your emails land in spam or your IP is on a blocklist.
SPF, DKIM, DMARC, reverse DNS, reputation… and getting delisted.
- 06
The network or the server keeps scaring you and nobody knows what is there.
Inventory, monitoring, backups that actually restore and redundancy where it is needed.
From the first line of code to the network and server it runs on: one person in charge.
Integrations and APIs
I connect your website, ERP and accounting with each other and with outside services —payments, shops, the tax agency, the port…— so data flows on its own. Plus custom APIs for your apps.
Artificial intelligence
Consulting and agent development: automated customer service, assistants over your data and agents with human approval.
Systems and infrastructure
Linux servers, Proxmox, high-availability networks, clustered databases, verified backups and monitoring. And security: passwords, inventory and network audits.
Hacked website and malware
Cleanup of compromised websites and servers: malware, webshells, spam redirects and Google warnings. Containment, analysis and report.
Email that stays out of spam
SPF, DKIM and DMARC done right, blocklist removal and mail servers that deliver.
About me
I'm Oscar Copado, a developer and head of systems with over 25 years of experience. I have built and maintain applications for organisations with thousands of users: online sales, membership management, intranet, customer service, communications and a single account to sign in to everything.
I also run the part nobody sees: the network, the servers, the clustered databases and the backups. Working on both sides is what I bring. Applications are designed for the server they will run on, and the infrastructure is built knowing what it has to withstand.
- 25+
- years building and running systems
- 1000s
- of users on the platforms I maintain
- 2 sides
- application and infrastructure, one person in charge
Some real work: what the problem was, how it was solved and what changed.
End-to-end management for a transport company
A transport company with its own fleet that works with the Port of Valencia.
- The challenge
- Coordinating orders, routes, vehicles and drivers every day, while keeping up with port procedures and the accounts.
- The solution
- A custom application with orders and routes, fleet and maintenance, refrigerated units, delivery and consignment notes, incidents and a mobile version for drivers. Real-time alerts, orders that arrive on their own from the Port of Valencia’s PCS and delivery notes that go straight to Sage 50.
- The result
- All operations in a single tool, with the port and the accounts connected.
AI-powered customer service
A customer service team with several departments.
- The challenge
- Queries spread across several mailboxes and lots of repeated questions.
- The solution
- A ticketing portal that also turns emails from several mailboxes into tickets. AI classifies each query, filters out spam and answers on its own whatever is clearly in the knowledge base. For agents, it summarises the ticket.
- The result
- Instant answers to the usual questions, at any time. The team focuses on what really needs a person.
Infrastructure that keeps running
An organisation with several sites and services that cannot go down.
- The challenge
- Making sure a failed line or server leaves nobody without service.
- The solution
- Redundant routers, several lines with automatic failover, clustered databases, virtualisation with verified backups and a dashboard with the live network status. For emergencies, access over 4G.
- The result
- If a line or server goes down, service continues and the dashboard reports what happened.
Rather ask?
Type a command or tap one of the buttons. Try “help”.
oscar@oscarcopado:~$ whoami
Oscar Copado — developer and head of systems.
Over 25 years building platforms and the infrastructure behind them. Valencia, Spain, working worldwide.
oscar@oscarcopado:~$ help
commands: whoami · services · projects · ai · stack · contact · clear
try:
On systems in production, the way of working matters as much as the result.
- 01
I read first, then I touch.
Before changing anything, I understand how what already works is built.
- 02
Every change has its rollback.
I explain what I will do, how it can fail and how to undo it. Nothing is applied without your approval.
- 03
I will never say “no risk”.
I will tell you what the risk is and what I have done to reduce it.
- 04
Everything in writing.
A dated change log, technical documentation and PDF user manuals for whoever will use the tool.
- 05
You see what I am on.
Every job lives in a shared task manager, with what is done and what is left.
- 06
Passwords live in a password manager.
Never in emails, chats or documents.
- 07
I do not vanish after delivery.
Monitoring, maintenance and updates if you need them.
Background
I started building online shops in 2001 and have not stopped since: development, systems, security and now artificial intelligence.
Studied Telecommunications Engineering at the Polytechnic University of Valencia. Self-taught in everything else.
- 2012 – now
Freelance
Development for companies, agencies and game studios. From the first jobs —a Magento shop synced with autoscout24 and a WordPress blog that went from over 5 seconds per page to loading instantly— to complete management software for a transport company connected to the port and the accounting system, mobile game backends, healthcare platforms, an ad server and school and training management.
- 2002 – now
Levante UD
Head of IT. From the official website, online shop and internet radio of the early years to today’s platforms: online sales, memberships, single sign-on, intranet and AI customer service. Plus the network, servers and clustered databases behind it all.
- 2009 – 2010
Jarawanpe
CineLimite, a film site with listings, reviews and user affinity (Yii, PHP and MySQL), plus tuning its server.
- 2009
Ontecnia
Migrated a phpBB forum to vBulletin keeping users and posts, and built an internal management app in JavaScript.
- 2007 – 2009
3Clicks
From one server to a fleet: in-house load balancing, migration to Amazon EC2 with autoscaling, incremental backups and PHP and Node.js development.
- 2007
Ibermática
J2EE project (Java, Hibernate and Struts) for a public-sector body.
- 2004 – 2006
Polytechnic University of Valencia
Intern at ITACA (intranet integrated with phpBB) and at the IDEAS Institute (custom CMS and server migration from Windows to Linux).
- 2001 – 2002
Infurma
Custom online shops for furniture companies, in PHP and MySQL.
What I work with
- Languages
- Frameworks
- Databases
- Frontend
- CMS and shops
- Payments
- Integrations
- Documents
- Artificial intelligence
- Tools
Contact
Let's talk
Got an idea to build, a platform that has fallen short or a network that keeps scaring you? Tell me. I will tell you how I would do it, how long it would take and what it would cost, with no commitment.
Or email me directly: