ABOUT

I am Claudia. I write the code.

Senior full-stack engineer in Bucharest, working with clients across the EU. Seven years of software in production, 90+ platforms delivered.

Portrait of the engineer who writes and runs this site

I did not start in software. I studied business administration, and I spent enough time near the operational end of real companies to develop a specific dissatisfaction: the software was almost always describing a database instead of describing the work. The manager, the accountant, the sales people or the receptionist were each handed the same screen, and each of them had to translate it into their own job before they could use it.

That dissatisfaction is still the most useful thing I own. It is why I ask about process before I ask about features, and why the first question I have about any project is who is going to sit in front of this all day.

What I have actually done

Seven years of software in production. Around 90 platforms delivered as an independent developer where I handled every part myself: the requirements, the data model, the interface, the build, the server, and the years of support afterwards. That period taught me more about failure modes than any amount of reading, because I was the one who got the phone call.

Then two years where the scope got considerably larger. First as the only engineer on a lead-generation platform selling into the US, where I designed and trained a scoring model from zero to replace a third-party API, and built the telephony module of a call centre, the compliance and the mobile applications around it. Since then, larger systems in healthcare: a fifteen-clinic operating system, an AI wellness platform, a booking platform and a diagnostics tool - architecture, code and the infrastructure underneath, all of it mine.

Across those years the categories add up to a considerable list: CRM, SaaS, ERP, electronic medical records, warehouse management, HR systems, fintech, content management, e-commerce, communications platforms, and advertising technology. What that list actually means is narrower and more useful than it sounds: I build the system a business runs on, rather than a feature on top of somebody else's.

Why I work alone

Not out of principle, and not because I could not build a team. Because for the size of problem I take on - one company's core system - the coordination cost of a team usually exceeds what the extra hands buy, and the quality comes from one person holding the whole model in their head.

It has an obvious limit, and I would rather state it than have you find it: large projects do not frighten me, but the build time grows. On the large ones we are no longer talking about weeks or one to three months, but many months at twelve to fourteen hours a day, because I love what I do.

Outside the work

I read considerably more about how businesses operate than about programming, which I think shows in what I build. I speak Romanian and English fluently, and French, Spanish and Italian well enough to work in them. I am in Bucharest, and most of my clients are somewhere else.

THE STACK
BUILT WITH
PythonJavaJavaScriptTypeScriptPHPDartGoRustSoliditySQLDjangoDjango REST FrameworkCeleryFlaskSpring BootLaravelNode.jsNestJSGraphQLWagtailReactNext.jsVueNuxtViteTailwind CSSHTMXAlpine.jsBootstrapFlutterPostgreSQLMySQLMariaDBClickHouseRedisMongoDBDynamoDBSQLitepandasNumPyLinuxUbuntuNginxApacheDockerKubernetesTerraformAWSGoogle CloudEthereumweb3.jsEthers.jsHardhatFoundryOpenZeppelinWalletConnectPolygonOptimism
INTEGRATED WITH
StripePayPalPaddleEuPlătescNetopiaSmartBillNexusFGOANAF e-FacturaDatecs fiscal printersFAN CourierSamedayCargusGLSDPDDHLSinapseriaFulfiloHelpshipSmoobuBooking.comAirbnbYale smart locksConvosoVICIdialCloudTalkTwilio VoiceGoHighLevelHubSpotPipedrivemonday.comZapierCalendlyCallGridDialedInRingbaPlura.aiTrustedFormTCPA & DNC scrubbingMaxMind minFraudFingerprintJSSMSAPITwilioWhatsApp Business APIFirebase Cloud MessagingPusherMailgunBrevoPostmarkSendGridMailchimpOpenAIAnthropicGoogle GeminiAzure OCRMubertMeta PixelMeta Conversions APITikTok PixelGoogle Tag ManagerGoogle AnalyticsHotjarGoogle MapsGoogle CalendarZoom Video SDKTwelve DataBinanceChainlinkFrankfurterlista-firme.infoFigmaGoogle OAuthreCAPTCHACloudflareWearable OAuth (10 providers)Meta Graph APIFacebook LoginLinkedIn OAuthMicrosoft OAuthParsliCourierManagerSMTPIMAPGoogle PlacesGoogle SheetsGoogle FontsGoogle AdSenseip-apiSentryPlausibleMatomoMaxMind GeoLite2n8nOutbrainTaboolacPanel and WHMTrustpilotBNB ChainArbitrumBaseAvalancheBlockscoutUniswap V2SolanaCoinbaseGDELTFREDBLSBEAFederal ReserveECBRosettaRRDBliveCallManagerTurnstileCaddyZoomMicrosoft ClarityGoogle AdsLinkedIn AdsAWSAlpacaAlpha VantageAmazon LoginApple Sign InArbiscanBAS node stackBasescanBscScanCoinGeckoCookiebotDialRight (CallerID Reputation)Disposable-email blocklistElfsightEthereumEtherscanExchangeRate-APIGoogle PerspectiveGravatarMarketauxMaxMind GeoIP2Meta Marketing APIMicrosoft UETMyMemoryNewsAPIOpenAI-compatible vision APIOpenStreetMapOptimismOptimistic EtherscanPancakeSwap V2PolygonPolygonScanQuickSwapSalesforceSaxo BankSepoliaSnowtraceSoftOne / Integra ERPTikTok LoginTrader Joe V1WhatsApp click-to-chatWordPress.com mShotsexchangerate.hostipapi.coipify
RIGHT NOW

Where things stand.

FOCUS
The system a company actually runs on - booking, records, inventory, invoicing, permissions - rather than a feature on top of somebody else's platform. That is where I am strongest and where most of my work sits.
AVAILABILITY
Selective. I take on a small number of outside projects, because I do not think it is right to split my attention across several of them and leave clients waiting. Ask me and I will tell you what the next open window looks like.
BASED
Bucharest, Romania. Remote across the EU, and used to working across time zones with US teams.
LANGUAGES
Romanian and English fluently; French, Spanish and Italian at a working level. Documentation and meetings in any of them.
HOW I WORK

Four things I will not be talked out of.

Software should mirror how the business actually operates
I came into IT from business administration, and that still shapes everything. The manager, the accountant and the receptionist each need a tool that matches the decision they are making - not one screen that serves the database.
You own everything, from day one
Repositories, servers, domains, accounts, all in your name from the start. I have inherited too many systems held hostage by whoever built them to do the same thing myself.
An estimate before requirements is a guess with a number on it
I would rather charge you for a short discovery and give you a real figure than win the work with an optimistic one and renegotiate in month three.
If I am not right for it, I will say so
There is work I am excellent at and work I would merely be adequate at. Turning down the second kind is how the first kind stays good.

Shall we talk about what you are building?

Six questions and about two minutes, or an email if you would rather write it out yourself.