CVMaker set out to streamline European job applications by enabling candidates to build ATS-optimized resumes and cover letters in under 15 minutes. Over an ongoing 18+ month engagement, Elementica refactored the core platform — engineering a six-language localized template system, a real-time application tracking layer, and a zero-downtime v2 architecture migration that maintained continuous service for thousands of active subscribers.
HR Tech/Consumer SaaS/Europe
Employer view tracking — real-time analytics notifying applicants when employers view or open submissions
Zero-downtime v2 migration — complete platform architecture upgrade executed without subscriber interruption
Client context
Job seekers across Europe navigate complex, localized recruitment expectations. Beyond language translation, resume formatting conventions vary significantly between markets — such as photo requirements in German CVs versus strict anonymous standards in UK resumes. Furthermore, modern employers rely heavily on Applicant Tracking Systems (ATS) to filter resumes automatically before human recruiters review them.
CVMaker built its subscription platform to give European candidates a fast, form-based interface that produces professionally styled, ATS-compliant resumes tailored to local job market norms.
The challenge
Supporting a multi-country subscription SaaS platform over an 18-month engagement presented key engineering challenges:
- Internationalization (i18n) & Regional Layouts: Supporting six languages (English, French, Italian, Spanish, German, Polish) without duplicating codebases required a dynamic localization system capable of adjusting document structure based on local conventions.
- Zero-Downtime v2 Architecture Upgrade: The existing production system had thousands of active paying subscribers. Upgrading the underlying database schemas, frontend state layer, and PDF rendering engine had to be executed without service interruptions.
Elementica's role
Elementica serves as the core product development partner. We led the v2 platform re-architecture, engineered the multi-language template rendering pipeline, built the application tracking infrastructure, and established automated CI/CD deployment pipelines on AWS.
The solution
ATS-Optimized Multi-Language Template Engine
We built a document generation engine that separates content input from visual presentation. Users complete intuitive forms in their native language, and the system compiles the data into ATS-compliant layouts engineered to pass parsing algorithms used by corporate ATS platforms.
Real-Time Employer Application Tracking
To provide visibility after application submission, we developed an application tracking module. When candidates share digital applications, the platform tracks interaction events, sending real-time notifications when an employer opens or downloads their CV.
Seamless v2 Platform Migration
We executed an incremental v2 platform migration using a feature-flagging and proxy-routing strategy. Legacy services were gradually replaced by modern TypeScript microservices and a refactored React UI, allowing new capabilities to deploy continuously without disrupting existing user sessions.
Engineering decisions that mattered
Single shared codebase with dynamic localization schemas
Rather than maintaining separate market-specific forks (which create high maintenance overhead), we built a unified core application powered by dynamic i18n localization schemas. Layout rules, language strings, and regional field requirements are injected dynamically based on user locale, simplifying platform updates across all six markets.
Asynchronous headless PDF rendering queues
Generating high-resolution, vector-perfect PDF documents is CPU-intensive. We decoupled document compilation from web servers using headless Puppeteer workers running on isolated queue pools. This architecture ensures instantaneous document downloads while isolating primary web endpoints from rendering spikes.
Results
CVMaker expanded its footprint across six European language markets, enabling job seekers to generate ATS-ready resumes in under 15 minutes. The zero-downtime v2 migration established a modernized technical foundation, supporting continuous feature delivery for a growing global subscriber base.
Product evolution
The platform continues to enhance its feature set, integrating AI-assisted content optimization, automated job match scoring, and expanded cover letter customization tools.
