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DK, Back to homeDaniel Kurdoghlian

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Complex systems. Cleanly built.

Each case study describes a problem from production, the path taken and what changed for the team.

Data Engineering

Campaign attribution without third-party tools

B2B marketplace · 2024

A first-party pipeline that closes the ad-blocker gap and binds every touchpoint to the signup.

Django UTM REST API PostgreSQL
Case Study
Security

Document encryption at rest

B2B marketplace · 2024

Every upload became ciphertext on disk without changing a single download.

Fernet Django GDPR PostgreSQL
Case Study
Integration

Marketplace embeds on partner sites

B2B marketplace · 2023-2024

One Django app that adapts itself inside an iframe, with cross-origin messaging.

postMessage Django CORS JavaScript
Case Study
Frontend

A price filter across five orders of magnitude

B2B marketplace · 2024

A power-curve range slider that makes 500 euros and 50 million reachable on one track.

TypeScript Web Components CSS
Case Study
Backend

Webhook processing under load

B2B marketplace · 2023-2024

Deadlock-resilient handlers that process 50,000 events a day without losing one.

Django Celery Redis PostgreSQL
Case Study
Automation

Automated property exposés

Real estate platform · 2022-2024

A 45-minute InDesign job per listing became a three-second generator.

ReportLab Django Python SVG
Case Study
Backend

Search agents with frequency control

B2B marketplace · 2022-2024

Scheduled matching that deduplicates results and sends exactly one email per finding.

Celery Beat Django ORM SMTP PostgreSQL
Case Study
Performance

First-party visitor tracking at 500 requests a second

B2B marketplace · 2021-2024

Middleware that turns every IntegrityError into a 2 ms read instead of a crash.

F() SELECT FOR UPDATE Django PostgreSQL
Case Study
Frontend

Feature flags for A/B tests

B2B marketplace · 2022-2024

Percentage rollouts with visitor-level persistence, toggled by the product team in seconds.

Feature Flags Django Middleware JavaScript
Case Study
Database

Zero-downtime schema migrations

B2B marketplace · 2023

A four-step decomposition that changed a four-million-row table during peak traffic.

PostgreSQL RunSQL Django Migrations CI/CD
Case Study
Performance

Per-tenant cache invalidation

B2B marketplace · 2021-2024

Version-hash keys across 200+ company profiles: edits go live instantly, nothing leaks between tenants.

Redis Cache Versioning Django Multi-Tenant
Case Study
Backend

Rule-based pricing that retired the Monday spreadsheet

B2B marketplace · 2023-2024

Account managers compose demand, supply and season rules and preview the price before publishing.

Rule Engine Celery Django PostgreSQL
Case Study
Automation

Contract generation from verified data

B2B marketplace · 2022-2024

Template inheritance turned a three-day process into two seconds with zero field errors.

Jinja2 Django Template Inheritance PDF
Case Study
Integration

Three payment gateways, one checkout

E-commerce SaaS · 2022-2024

Synchronous, redirect and webhook flows unified behind a single pipeline with price re-validation.

Braintree PayPal Django PostgreSQL
Case Study

Every project starts with your domain, not with a template.

Daniel made a decisive contribution to the founding and implementation of the companies Solvster and VIARES. He was responsible for the entire technical setup of the online presence, including server setups, developing and optimizing the website, and ensuring functionality. I was particularly impressed by how proactively and solution-oriented he always worked on improvements. Daniel was always very responsive and reliable - it was a pleasure working with him. His expertise and commitment contributed significantly to the success of both projects!

Dietmar Eglhofer - CEO, Solvster & VIARES

Join Dietmar and launch your next project with confidence.

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