Berghea Iosif Octavian

Full-stack engineer at Numan, a digital health platform for men's and women's health, working across the entire product stack, from customer-facing checkout flows to backend APIs and clinical tooling.

• Built and launched the new Erectile Dysfunction subscription renewal flow end-to-end across 5 services. Rolled out safely as an A/B experiment with automatic fallback to the legacy flow.
• Delivered the frontend and API surface for the Women's Health vertical launch: three new blood-test products, menopause video consultations (booking, rescheduling, follow-ups), confirmation and checkout pages, and biomarker data synced across four backend services.
• Developed a new product selection & purchase flow
  Built clinical note templates (dynamic forms, validation, SNOMED coding) used by clinicians
• Implemented features like test results PDF export, subscription-pause retention experiments (Eppo/Amplitude), and a catalog-wide medication replacement coordinated across 5 repositories.
• Consistently shipped with unit tests (Jest, Vitest, Mocha, RSpec, pytest) and iterated on business rules for subscription visibility and deduplication

• Developed SaaS-based recruitment platform , enhancing workflow efficiency.
• Built reusable UI components , reducing development time by 30% .
• Improved React state management using Zustand & React-query , leading to 30% faster rendering .
• Mentored junior developers and conducted code reviews to maintain high standards.
• Collaborated with backend & design teams to improve product scalability.

• Designed and optimised React components for AI-driven business automation platform.
• Implemented unit testing with Jest & React Testing Library, improving code coverage by 50% .
• Led performance optimisations , reducing application load time by 35% .
• Mentored junior developers and conducted technical interviews for new hires.

• Built multi-tenant cloud-based SaaS platform for banking companies.
• Integrated third-party digital transaction tools , improving security & efficiency.
• Developed scalable React components , enhancing UI/UX.
• Worked closely with clients, PMs, and QA teams for successful project delivery.
• Developed and improved mobile view.
• Successfully delivered on tasks within tight deadlines.
• Regularly performed unit tests on codebase, maintaining high standards of quality throughout projects lifecycle.
• Achieved effective data representation by creating dynamic charts and graphs via D3.js .
• Encouraged the adoption of DevOps culture within the team resulting in increased collaboration between developers and operations staff.
• Built robust backend services, improving data security and integrity .
• Participated in agile development methodologies to accelerate project completion timelines whilst maintaining quality standards.

• Developed responsive eCommerce websites with HTML5, CSS3, and JavaScript.
• Ensured cross-browser compatibility and optimised website performance.
• Ensured mobile view according with design.
• Customised themes developed in Drupal, Sencha, and Symfony .
• Integrated RESTful APIs into existing software systems for enhanced functionality.
• Implemented SEO best practices in coding, boosting organic search engine ranking.
• Utilised jQuery to streamline HTML scripting, simplifying client-side scripting.

• Developed pixel-perfect web applications from PSD designs.
• Implemented SEO best practices in coding, boosting organic search engine ranking.
• Collaborated with UX and UI designers to implement design changes.
• Ensured effective communication between client's browser and server by coding in JavaScript, jQuery, AJAX.

• Created custom websites and interactive UI elements.
• Created high-quality Mockups with Adobe Creative Suite.
• Generated user-friendly interfaces by utilising HTML, CSS and JavaScript.
• Developed custom themes for WordPress websites, enhancing their aesthetic appeal and functionality.

• Collaborated with multidisciplinary teams for holistic economic analysis.

• Analysed complex datasets, improved business operations.