Product engineering / FlexyPack
A Custom Recruitment System for FlexyPack
A purpose-built WordPress recruitment platform designed and developed from the ground up, with custom code and business logic supporting FlexyPack's hiring workflow.
Work / Sultan Kautsar
Selected work across product platforms, recruitment, campaign engineering, and measurement infrastructure.
Selected work / 01
The work ranges from systems built from the ground up to multi-stack maintenance and consent-aware measurement.
01
Product engineering / FlexyPack
A purpose-built WordPress recruitment platform designed and developed from the ground up, with custom code and business logic supporting FlexyPack's hiring workflow.
Custom WordPress / Recruitment workflows / Business logic / Server operations
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Web and campaign engineering / FlexyPack
A web platform built from the ground up and extended with focused landing pages for product-, region-, and market-specific advertising.
WordPress / Localized landing pages / GA4 and GTM / Server operations
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Measurement engineering / MediaConversion and client projects
End-to-end GA4, Google Tag Manager, and Google Ads conversion tracking with Consent Mode v2 across MediaConversion, YogaBali, and Ihr Umzugsplaner.
GA4 / Google Tag Manager / Google Ads conversions / Consent Mode v2
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Platform engineering / Rucika
Ongoing technical management across Rucika's WordPress presence and the custom Next.js stack behind Rucika Institute.
WordPress / Next.js / Maintenance / Platform operations
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Independent project / Rayatiga
A rebuilt digital presence that preserves the Rayatiga identity while moving the former business site into an independently maintained project.
Web development / Brand continuity / Deployment / Independent product
Read case studyEvidence / 02
Each record follows the same boundaries so ownership is clear and presentation does not replace evidence.
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The problem, operating environment, and constraints that made the work necessary.
02
A precise account of responsibility, boundaries, and the parts of the system involved.
03
The architecture, implementation choices, tradeoffs, and reasoning behind the approach.
04
The outcome and available evidence, presented without inflated metrics or implied attribution.
Collaboration / 03
Start a direct conversation about the context, constraints, and work involved.
Contact Sultan