AWS
Apps that scale without your bill skyrocketing
Your application grows, your user base increases, and suddenly you're faced with two problems: an infrastructure that can't keep up and an AWS bill you don't understand. It doesn't have to be this way. At Mecexis, we've been building applications on AWS for over a decade, and we've learned something fundamental: the cloud is a tool, not an end in itself. We use AWS when it delivers real value, we optimize each service so you only pay for what you need, and we guide you so you never again depend on a "cloud guru" that nobody understands.
Why AWS?
The infrastructure used by Netflix, Airbnb and the Liga Endesa (yes, we built it too)
Amazon Web Services needs no introduction: it's the world's most widely used cloud platform for a reason. It offers 99.99% reliability, a global presence, and a catalog of over 200 services that cover virtually every technical need imaginable.
But here's the problem: most companies misuse AWS. They hire consultants who sell them oversized architectures, pay for services they don't need, and end up with five-figure bills without knowing exactly why.
At Mecexis, we do the opposite. We're not your typical AWS consultancy: we're developers with years of experience deploying real-world applications in production. We know which services you need, which ones you can avoid, and how to configure everything to scale automatically without breaking the bank. We've done this for the ACB with thousands of users, and we do it every day for companies that simply want their applications to work.
Main Advantages of AWS
AWS can be your best friend or your worst nightmare. The difference lies in how you implement it. These are the real advantages of working with a team that knows what it's doing.
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Real, Not Theoretical Scalability
When the Liga Endesa app experiences a traffic spike during a Real Madrid game, the infrastructure automatically scales in seconds. No manual intervention, no downtime, no surprises. This isn't magic: it's AWS properly configured. Auto Scaling Groups, Load Balancers, and an architecture designed from day one to grow with you. And when the game ends, the infrastructure scales down and you stop paying.
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Predictable and Optimized Costs
The dreaded moment for many businesses is opening their AWS bill at the end of the month. We set up budget alerts, use reserved instances when it makes sense, implement lifecycle policies in S3, and regularly review areas for optimization. The result: you know exactly what you're going to pay, and that number is the absolute minimum for your needs.
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Enterprise-Level Security
AWS provides security certifications your company could never achieve on its own: ISO 27001, SOC 2, GDPR, PCI DSS. But certifications are useless if the configuration is incorrect. We implement IAM with least privilege, VPCs with private subnets, encryption in transit and at rest, and regular security audits. Your application is compliant because it's configured to be compliant.
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Global Availability
Do you have users in Europe and Latin America? CloudFront distributes your static content from the edge closest to each user. Need to comply with data residency regulations? We deploy in the region you need. Do you want geographic redundancy? We set up replicas in multiple Availability Zones. AWS has a presence in 32 regions worldwide, and we know how to leverage it.
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Unified Development and Production
No more "it works on my machine." With AWS, development, staging, and production environments are identical. Infrastructure as code with Terraform, automated deployments, and instant rollbacks if something goes wrong. This means fewer bugs in production, more frequent deployments, and development teams that aren't afraid to push changes.
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One Partner, Not Two Suppliers
Most companies hire one agency for development and another for infrastructure. The result: when something goes wrong, they blame each other. With Mecexis, you have development and infrastructure under one roof. We build the application and deploy it. If there's a performance issue, we know whether it's code or configuration, and we fix it. No excuses, no ticket-based back-and-forth.
Ideal use cases
AWS is the solution when you need to go further
- Applications with unpredictable traffic spikes (events, campaigns, launches)
- Platforms that process data in real time (streaming, IoT, analytics)
- Startups that need to scale quickly without hiring an infrastructure team
- E-commerce with high traffic on key dates (Black Friday, sales)
- Mobile apps with authentication, notifications, and cloud storage
- Companies that need to comply with specific data security or residency regulations
AWS services that we master at Mecexis
AWS has over 200 services, but the reality is that 90% of applications only need 10. These are the ones we use constantly and know inside and out.
Why choose us as your AWS partner?
More than a decade building on AWS
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Developers First, DevOps Later
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We're not an infrastructure consultancy that outsources development. We're developers who have learned about infrastructure because it's impossible to build good applications without understanding where they'll run. This perspective changes everything: we don't design pretty architectures in a diagram, we design architectures that work for the actual code we're going to deploy.
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Pragmatism over Dogma
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AWS for everything? Not necessarily. If your application doesn't need to scale to millions of users, a VPS at Hetzner might be enough and save you thousands of euros a year. We'll let you know. And if you really need AWS, we'll use exactly the services you need, nothing more. We don't sell technology, we sell solutions.
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Infrastructure as Code, Always
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Everything we deploy is documented in Terraform or a similar framework. If you decide to switch providers or manage the infrastructure internally tomorrow, you have all the code. No vendor lock-in with us, no secrets, no artificial dependencies. The infrastructure is yours; we just build it.
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Proven Results at Scale
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The ACB app we developed serves thousands of basketball fans in Spain, with massive traffic spikes during important games. It never crashes. That's not luck: it's a well-designed AWS architecture, properly configured auto-scaling, and a team that knows what it's doing. When we say we know how to scale, we have the metrics to prove it.
We've seen AWS invoices that are frightening and others that are laughable. The difference lies in who designed the architecture.
