Banking, payments & fintech
Infrastructure that passes the questions your auditors, card schemes and banking partners ask.
- Security audits and hardening
- PCI DSS 4.0.1 controls
- DORA evidence for ICT suppliers
- Terraform, AWS, Kubernetes
Security · Infrastructure · AI-safe delivery
Secure engineering for regulated and growing businesses
We build, harden and run your infrastructure and applications, and set them up so your team or your AI agent can change them safely: every change checked, staged and reversible.
An engineer, not a salesperson, replies within one business day.
change #128 · show warranty under price
- "Show the warranty period under the price" Owner
- Branch, code change, pull request AI agent
- Syntax · secrets · forbidden files · risky-change flag Checks
- Preview on a sanitised copy of the shop Staging
- Looks good, approve Owner
- Reviewed PR · green CI · backup · health check Production gate
- Deployed. Rolls back by itself if the site fails Live
PCI DSS
controls built and run for a payments fintech
~1 week
from FTP edits to a gated pipeline for a 42,000-product store
6 h
database backup interval, with restores tested by checksum
8 chains
blockchain node fleet with chain-aware health checks
Websites & online shops
Change your site by describing what you want. An AI agent does the work; checks, staging and rollback keep it safe.
- No developer needed for everyday changes
- Staging preview before anything goes live
- Backups every 6 hours
- Server hardened and monitored
AI-built software
Built your app with Lovable, Cursor or Claude? We find what breaks before your users or attackers do.
- Security audit of AI-generated code
- Production hardening
- Guardrails for AI coding agents
- Secrets, access and data checks
All services
What we do, with prices
Infrastructure security audit, with the fixes included
We look at your infrastructure the way an attacker and an auditor would, then fix what matters most. You get a prioritised report and pull requests, not just a PDF.
from €3,500
PCI DSS 4.0.1 controls, built and evidenced by engineers
Your QSA asks the questions. We build the controls that answer them: segmentation, logging, vulnerability scanning, hardening, change control and payment-page protection.
from €4,500
Change your website by chatting with AI, safely
You describe the change. An AI agent makes it. Automated checks, a staging preview and a self-checking deploy make sure it cannot break your shop.
from €2,500
Security audit for apps built with AI: Lovable, Bolt, Cursor
AI tools build working apps fast. They also skip the parts nobody sees in a demo: access rules, secrets, rate limits and dependency checks. We check those, and fix them with you.
from €1,500
Infrastructure as code with Terraform, Ansible and GitOps
If your infrastructure only exists in a console and in one engineer's memory, it cannot be reviewed, audited or rebuilt. We turn it into code that can.
from €4,000
Managed operations for your servers and cloud
Someone who watches your infrastructure, keeps it patched, proves the backups work and picks up the phone when it breaks. Without hiring a full-time ops team.
from €600 / month
How we work
From first email to production
Free first call
30 minutes with an engineer. We look at your setup and tell you honestly whether we are the right fit.
Fixed-scope quote
A written scope, price and timeline. No hourly surprises.
Audit or build
Work happens in Git with pull requests you can see. Findings come with fixes, not just a PDF.
Run and improve
Optional monthly care: monitoring, patching, backups and changes on request.
All cases
Real work, real numbers
From FTP edits to an AI-managed pipeline in about a week
Two online stores, 42,000 products synced from 1C, and changes made directly on the live server. One week later, the owner was shipping changes by describing them to an AI agent.
~1 week from first look to a working gated pipeline
DevOps leadership for a payments fintech's PCI DSS-scope infrastructure
A European fintech processing payments, cards and crypto, with 20–50 people and a regulated core. We lead its DevOps over the long term: infrastructure as code, PCI DSS controls, payments connectivity and disaster recovery.
PCI DSS scope infrastructure built and operated
A safe delivery pipeline for a 9-year-old marketplace, live in one day
A Laravel marketplace with about 3,900 commits since 2017, one dedicated server under memory pressure, and changes going straight to production. The gated pipeline went live in a single day.
1 day to a live pipeline, across 39 pull requests including real fixes
Principles
What we do not compromise on
Nothing edits production by hand
Every change goes through a pull request, automated checks and a server-side gate that a pull request cannot weaken.
Every deploy can be undone
Backup before deploy, health check after, automatic rollback if the site does not come up.
Least privilege, everywhere
Per-repository read-only deploy keys, CI keys that can only deploy, and AI agents with no server or secret access.
Why SystemFlare
Most of our work comes from two kinds of clients that look different but need the same thing. A payments company has to prove to auditors and banking partners that its infrastructure is controlled. A shop owner needs to change the website on Tuesday without breaking it on Wednesday.
Both need the same discipline: changes go through Git, automated checks, a staging copy and a deploy gate that can roll back on its own. We built that discipline for regulated fintech infrastructure, and we now bring the same controls to smaller businesses. One result is that their owners can safely ask an AI agent for changes instead of waiting for a developer.
We publish prices, write in plain language, and put our findings into pull requests you can merge, not into reports that gather dust.
Questions clients ask
Who is SystemFlare?
SystemFlare is the security and infrastructure engineering brand of Dowell LLC. We work remotely with clients in the EU and worldwide, in English and Spanish. Our sister brand Dowell Studio builds new products for founders.
Do you certify PCI DSS or DORA compliance?
No. Certification is done by a QSA or your regulator. We implement and evidence the technical controls (hardening, logging, scanning, backups, access, change management) so that your assessment goes smoothly.
Can a non-technical owner really change a website through AI?
Yes, for everyday changes such as text, layout, product display and small features. The owner writes the request in plain language, the AI agent opens a pull request, automated checks run, and the change appears on a staging copy for approval. Risky changes are flagged for an engineer. See AI-managed websites.
How fast can you start?
Usually within a week of a signed quote. Urgent incidents (site down, suspected breach) are handled the same day when we have capacity; email us and say it is urgent.
Not sure where to start?
Tell us what worries you, whether that's an audit, a regulation deadline or a shop that's hard to change. We'll suggest the smallest useful first step.