About

The senior who sells is the one who delivers

Mysterious Code is the infrastructure team for startups and software companies that do not have one in-house. Your engineers write the application, we make it run. There is no middle layer: the senior engineers who design your platform also build it, run it and answer when you call. We are a boutique, 100% AWS-certified consultancy and an AWS partner since 2016, working across the UK and EU.

Photo of Paulina Budzoń, founder
By the numbers
2014 Founded, woman-owned
2016 AWS partner since
100% AWS-certified engineers
UK + EU clients, EU timezone
How we work

The engineers who design it also run it

Most consultancies sell you a senior and then hand delivery to someone else. We do not. The people you talk to before the work starts are the people who do it. No offshore teams, no account managers, no handover between sales and delivery.

We stay deliberately small and take on a few clients at a time, which is how we keep that accountability real. Everyone who works on your platform is senior and AWS-certified, and our founder, Paulina Budzoń, stays close to every engagement, so your work is never passed around a rotating team.

What we run

In practice, making it run means everything underneath the application:

  • Accounts and network. A multi-account AWS setup with guardrails from day one, and networking that keeps private things private.
  • Pipelines and deployments. Automated build and release, so shipping is routine and a rollback is one step.
  • Monitoring and response. Alerts that reach someone who knows your environment, with response expectations agreed in writing.
  • Security and cost. Least-privilege access for people and applications, continuous checks on the security posture, and spend that stays explained month to month.

All of it is built as Infrastructure-as-Code, so every change is reviewed like application code and any environment can be rebuilt from the repository.

Our base in Poland keeps us in your timezone: nearshore EU, not offshore.

Founder

Paulina Budzoń

Cloud Architect & DevOps Engineer

Paulina is a Cloud Architect and DevOps Engineer with around a decade of AWS depth, holding the AWS DevOps Engineer Professional certification since 2016 and the Solutions Architect Professional since 2017. She started as a PHP developer, moved through Linux and systems administration, and grew into AWS and DevOps architecture: a senior who has lived the whole stack your developers work in, automates in Python, and works alongside your team rather than from a cloud console.

She has authored two Packt video courses on cloud-native AWS, serverless and containers, and represents Mysterious Code at AWS and industry conferences.

AWS certifications

AWS Certified Solutions Architect Professional AWS Certified DevOps Engineer Professional AWS Certified Security Specialty AWS Certified Developer Associate
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Proof, not promises
40,000+ pulls across Docker Hub and Public ECR

We maintain the public cfn-lint Docker image the AWS team doesn't.

Let's talk

Start with a free second opinion: 30 minutes with our founder. No account access needed, and you keep a short written note of what we covered.

Schedule a meeting: our calendar