The résumé

Mihai Silviu Pop / Senior Software Engineer · Frontend & Full-Stack Development

Mihai Silviu Pop

Senior software engineer with 10+ years of experience across frontend applications, backend features, and developer tools, with deep expertise in TypeScript, JavaScript, and video advertising. Experience spans video monetization, experimentation infrastructure, CI/CD, observability, privacy-signal integration, and developer mentoring.

Baia Mare, Maramures · mihai.silviu.pop@gmail.com

Experience

5 roles

Senior Software Engineer

JWX (formerly JWP Connatix)

Oct 2024 - Present

Continuous employment from Connatix after the merger: JWP Connatix (October 2024–December 2025), then JWX (December 2025–Present), focused on JW products.

  • Designed and implemented the first feature A/B testing infrastructure for Vertical Video and Hive packages across 4 components; enabled configurable traffic splits, publisher/domain/region filters, and Jenkins start/stop workflows.
  • Reworked GitLab CI to reuse dependency installs and package builds, run automated tests, and publish test previews for the main branch and individual merge requests.
  • Owned Vertical Video technical delivery across player, advertising, and publisher-embed teams; built reusable inline/fullscreen UI and player-state modules and guided responsive interaction design.
  • Extended video advertising across inline, carousel, and right-rail placements, integrating Google Publisher Tag and JWX ad providers with API schemas, configuration mapping, and dashboard controls.
  • Designed and built an internal Stories MVP in TypeScript using AI-assisted, specification-driven development and a mobile-first design; implemented reusable cards, hub/article layouts, and fullscreen swipe/tap navigation.
  • Designed and implemented a shared Datadog logging package and migrated vertical-video logging; built and refined A/B dashboards to distinguish eligible traffic and compare ad-impression rates.
  • Implemented Global Privacy Control signal propagation across ad requests and tracking, and Global Privacy Platform forwarding behind a feature flag; added consent-readiness telemetry and validated changes with staged A/B tests.

Frontend Developer

Connatix ↗

Nov 2017 - Oct 2024

Video technology from startup through growth and acquisition; employment continued after the merger.

  • Designed technical plans and UI architecture for complex video-player features using TypeScript, Lit/Web Components, and React-family frameworks, coordinating implementation through delivery and support.
  • Redesigned Webpack builds as independent tasks running across Node.js processes and separate GitLab CI/CD jobs; retained static typing with JSDoc during a TypeScript-to-JavaScript conversion.
  • Proposed and drove Storybook adoption across engineering, design, and publisher support, enabling shared review of player UI components.
  • Mentored developers, onboarded new colleagues, reviewed technical solutions, and covered team leadership during the manager’s absence to maintain delivery continuity.

Dec 2016 - Nov 2017

Forestry enterprise software for a Finnish client.

  • Built and refactored features for a Finnish forestry enterprise resource planning application using AngularJS, TypeScript, Node.js, and Bootstrap.
  • Reviewed pull requests and traced defects across the frontend, backend, SQL Server, and PostgreSQL.

Junior Software Developer

Indeco Soft ↗

May 2014 - Dec 2016

Public administration software and tax payments.

  • Developed frontend, backend, and database features for public administration applications and a nationally used tax payment application at a provider serving over 1,000 institutions.
  • Implemented features using AngularJS, Node.js, TypeScript, PHP, and SQL Server, and helped colleagues learn AngularJS.

Web Developer

Auto Frontal

Jan 2012 - Oct 2013

E-commerce development and operations.

  • Administered 5 e-commerce websites, implementing features and managing search engine optimization, design, and online advertising with HTML, CSS, JavaScript, PHP, and MySQL.

Projects & contributions

7 contributions

Video-player Test Kit

Built a video-player Test Kit; evaluated Next.js and SvelteKit, selected SvelteKit, and enabled production/test-player checks across settings, screen sizes, and configurations. Explored Docker and Kubernetes during development.

  • Node.js
  • SvelteKit
  • Next.js
  • TypeScript
  • Docker
  • Kubernetes

Deployment helper

Built a Node.js/TypeScript CLI using the GitLab API and Consul to fetch branch data, trigger pipelines, and generate deployment or A/B configuration.

  • Node.js
  • TypeScript
  • GitLab API
  • Consul

Kibana reporting tool

Built a Node.js/TypeScript CLI to fetch and process Kibana data into logs and Excel reports.

  • Node.js
  • TypeScript
  • Kibana
  • Elasticsearch
  • CLI
  • Excel

Microservices blog — learning project

Explored Node.js, Express, React, Docker, and Kubernetes through a microservices blog, including micro-frontends with Module Federation.

  • Node.js
  • Express
  • React
  • Docker
  • Kubernetes
  • Module Federation

Company presentation website

Built a presentation website for a small IT company using React, Gatsby, and Firebase, focusing on search engine optimization and accessibility.

  • React
  • Gatsby
  • Firebase
  • SEO
  • Accessibility

Webpack build architecture

Redesigned Connatix builds into independent Webpack tasks across Node.js processes and GitLab CI/CD jobs; retained IntelliSense and static typing with JSDoc during a TypeScript-to-JavaScript conversion.

  • Node.js
  • Webpack
  • GitLab CI/CD
  • JSDoc

Mentoring

Developer mentoring

Mentored Connatix developers from entry-level/junior through mid- and senior-level work; supported onboarding and technical guidance.

  • Mentoring
  • Onboarding
  • Technical guidance

Skills

Languages

  • JavaScript
  • TypeScript
  • HTML
  • CSS

Frontend

  • Lit
  • Web Components
  • React
  • Preact
  • Next.js
  • SvelteKit
  • RxJS

Tooling and delivery

  • Node.js
  • Webpack
  • Rollup
  • GitLab CI/CD
  • Jenkins
  • Amazon S3

Browser APIs and observability

  • Web APIs
  • Native video and text tracks
  • Datadog
  • Unit testing
  • End-to-end testing

Education

Oct 2011 - Jul 2015

Bachelor of Engineering

Computer and information technology

Technical University of Cluj-Napoca - North University Center of Baia Mare

Certificates

AWS Technical Essentials — training

Sep 2022

JSNation workshop: Is Module Federation Right for You?

Jun 2022